Merge pull request #1198 from bbassie/feature/mod-search-focus

Focus the mod search inputs when they open

.emmyrc.json

@@ -0,0 +1,48 @@
+{
+    "$schema": "https://raw.githubusercontent.com/EmmyLuaLs/emmylua-analyzer-rust/refs/heads/main/crates/emmylua_code_analysis/resources/schema.json",
+    "runtime": {
+        "version": "Lua5.2",
+        "requirePattern": [ "?", "?.lua" ]
+    },
+    "workspace": {
+        "$comment-moduleMap": "Rewrites each file's own module path rather than the require string",
+        "$comment-library": "The factorio typedefs are provided by a second config, generated with fmtk luals-addon in ci",
+        "$comment-templates": "The create templates contain __plugin_name__ placeholders and are not valid lua",
+        "ignoreGlobs": [
+            "**/node_modules/**",
+            "**/dist/**",
+            "database/**",
+            "docs/**",
+            "external_plugins/**",
+            "factorio/**",
+            "instances/**",
+            "logs/**",
+            "mods/**",
+            "modules/**",
+            "temp/**",
+            "packages/create/templates/**"
+        ],
+        "moduleMap": [
+            { "pattern": "^packages\\.host\\.modules\\.(.+)$", "replace": "modules.$1" },
+            { "pattern": "^plugins\\.([^.]+)\\.module\\.(.+)$", "replace": "modules.$1.$2" },
+            { "pattern": "^packages\\.host\\.lua\\.export\\.(.+)$", "replace": "$1" },
+            { "pattern": "^packages\\.host\\.lua\\.clusterio_lib\\.(.+)$", "replace": "$1" }
+        ]
+    },
+    "doc": {
+        "privateName": [ "__*" ]
+    },
+    "$comment-disable": "Same set as ExpCluster, these are editor level hints rather than ci checks",
+    "$comment-unnecessary-if": "Disabled by the config fmtk generates for itself, the api union types make it unreliable",
+    "diagnostics": {
+        "globals": [ "__DebugAdapter", "__Profiler" ],
+        "disable": [
+            "assign-type-mismatch",
+            "param-type-mismatch",
+            "preferred-local-alias",
+            "unnecessary-assert",
+            "unnecessary-if",
+            "unused"
+        ]
+    }
+}

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+# Default owners for all files in the repository.
+* @psihius @Danielv123 @Hornwitser @Cooldude2606 @ILLISIS

.github/actions/pnpm-install/action.yml

@@ -0,0 +1,26 @@
+name: Install dependencies
+description: Set up pnpm and Node.js and run pnpm install
+
+inputs:
+  node-version:
+    description: Node.js version passed to actions/setup-node
+    required: true
+  ignore-scripts:
+    description: Skip the prepare scripts that build the workspace packages
+    default: "false"
+
+runs:
+  using: composite
+  steps:
+    - uses: actions/setup-node@v7
+      with:
+        node-version: ${{ inputs.node-version }}
+        package-manager-cache: false
+
+    # pnpm/action-setup installs a bootstrap pnpm and then switches to the
+    # packageManager version, which takes about 10 seconds.
+    - shell: bash
+      run: npm install --global --no-audit --no-fund "$(node -p 'require("./package.json").packageManager.split("+")[0]')"
+
+    - shell: bash
+      run: pnpm i --no-frozen-lockfile ${{ inputs.ignore-scripts == 'true' && '--ignore-scripts' || '' }}

.github/pull_request_template.md

@@ -1,10 +1,15 @@
-Describe why and what has been changed by this pullrequest, feel free to also ask for input on decisions you are unsure about etc.
-The changelog lines below will be copied directly from merged pull requests to the changelog on new releases. Changes are expected to preferrentially link to the associated issues. If there are no relevant issues, link to the pull request itself.
+<!--
+Describe why and what has been changed by this pull request, feel free to also ask for input on decisions you are unsure about etc.
 
-## Changelog
+The changelog lines below will be copied directly from merged pull requests to the changelog on new releases. Changes are expected to preferentially link to the associated issues. If there are no relevant issues, link to the pull request itself.
+
+If there are no relevant changelog entries replace the code block below with "None." followed by an optional reason for why it is not needed.
+-->
+
+### Changelog
 ```
 ### Features
-- Added doodad to web interface. [#999](https://github.com/clusterio/clusterio/issues/999)
+- Added doodad to web interface. #999
 
 ### Changes
 - ...
@@ -12,6 +17,6 @@ The changelog lines below will be copied directly from merged pull requests to t
 ### Fixes
 - ...
 
-### Breaking changes
+### Breaking Changes
 - ...
 ```

.github/workflows/ci-changes.yml

@@ -0,0 +1,126 @@
+name: Classify CI changes
+
+on:
+  workflow_call:
+    outputs:
+      build_and_test:
+        description: Run the test and coverage matrix, compatibility tests, and mod build.
+        value: ${{ jobs.changes.outputs.build_and_test }}
+      js_lint:
+        description: Run the JavaScript/TypeScript linter.
+        value: ${{ jobs.changes.outputs.js_lint }}
+      lua_lint:
+        description: Run the Lua linter.
+        value: ${{ jobs.changes.outputs.lua_lint }}
+
+jobs:
+  changes:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    outputs:
+      build_and_test: ${{ steps.syntax.outputs.build_and_test || steps.paths.outputs.code }}
+      js_lint: ${{ steps.lint.outputs.js_lint }}
+      lua_lint: ${{ steps.lint.outputs.lua_lint }}
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+      - uses: dorny/paths-filter@v4
+        id: paths
+        with:
+          token: ''
+          base: ${{ github.event.pull_request.base.sha || github.event.before }}
+          ref: ${{ github.sha }}
+          list-files: json
+          predicate-quantifier: every
+          filters: |
+            # Files requiring validation beyond documentation checks.
+            code:
+              - '**'
+              - '!**/*.md'
+              - '!docs/**/*.{png,jpg,svg,gif}'
+            # Sources and configuration owned by each linter.
+            # Workflow scripts and shared build configuration run both linters.
+            js:
+              - '**/*.{js,cjs,mjs,jsx,ts,cts,mts,tsx}'
+              - '!.github/**'
+              - '!**/{webpack,babel,rollup,vite,jest}.config.*'
+            lua:
+              - '{*.lua,**/*.lua,.emmyrc.json}'
+              - '!.github/**'
+            # Modified JS/TS source eligible for the comment-only shortcut.
+            # TypeScript type changes still count as substantive changes.
+            syntax:
+              - modified: '**/*.{js,cjs,mjs,jsx,ts,cts,mts,tsx}'
+              # Source fixtures and templates always receive full validation.
+              - '!test/file/**'
+              - '!packages/create/templates/**'
+              - '!.github/**'
+              - '!**/{eslint,webpack,babel,rollup,vite,jest}.config.*'
+      - name: Select linters
+        id: lint
+        env:
+          CODE_FILES: ${{ steps.paths.outputs.code_files }}
+          JS_FILES: ${{ steps.paths.outputs.js_files }}
+          LUA_FILES: ${{ steps.paths.outputs.lua_files }}
+        run: |
+          # Unclassified non-documentation files can affect either language.
+          jq -nr --argjson code "$CODE_FILES" --argjson js "$JS_FILES" --argjson lua "$LUA_FILES" '
+            ($code - $js - $lua | length > 0) as $shared |
+            "js_lint=\($shared or ($js | length > 0))",
+            "lua_lint=\($shared or ($lua | length > 0))"
+          ' >> "$GITHUB_OUTPUT"
+      - name: Install Difftastic
+        if: steps.paths.outputs.syntax == 'true'
+        env:
+          DIFFT_VERSION: 0.71.0
+          DIFFT_SHA256: 61aea5394a53c56f144637cf39b3a0c0dafa27769731745e5851ff276e6478da
+        run: |
+          mkdir -p "$RUNNER_TEMP/difftastic"
+          curl -fsSL "https://github.com/Wilfred/difftastic/releases/download/$DIFFT_VERSION/difft-$DIFFT_VERSION-x86_64-unknown-linux-gnu.tar.gz" -o "$RUNNER_TEMP/difftastic.tar.gz"
+          echo "$DIFFT_SHA256  $RUNNER_TEMP/difftastic.tar.gz" | sha256sum -c
+          tar -xzf "$RUNNER_TEMP/difftastic.tar.gz" -C "$RUNNER_TEMP/difftastic"
+          echo "$RUNNER_TEMP/difftastic" >> "$GITHUB_PATH"
+      - name: Check for substantive changes
+        id: syntax
+        if: steps.paths.outputs.code == 'true'
+        env:
+          CODE_FILES: ${{ steps.paths.outputs.code_files }}
+          SYNTAX_FILES: ${{ steps.paths.outputs.syntax_files }}
+          BASE: ${{ github.event.pull_request.base.sha || github.event.before }}
+          HEAD_SHA: ${{ github.sha }}
+        run: |
+          # Skip only when every non-documentation file is an ordinary source edit.
+          echo 'build_and_test=true' >> "$GITHUB_OUTPUT"
+          # A new branch has no previous commit; keep full validation on its first push.
+          if [[ "$BASE" == 0000000000000000000000000000000000000000 ]]; then
+            exit 0
+          fi
+          if ! jq -en --argjson code "$CODE_FILES" --argjson syntax "$SYNTAX_FILES" \
+            '$code - $syntax | length == 0' > /dev/null; then
+            exit 0
+          fi
+          git cat-file -e "$BASE^{commit}"
+          jq -j '.[] | ., "\u0000"' <<< "$SYNTAX_FILES" > "$RUNNER_TEMP/syntax-files"
+          while IFS= read -r -d '' file; do
+            # Mode changes and symlinks are substantive even when text is identical.
+            [[ -z "$(git diff --summary --no-renames "$BASE" "$HEAD_SHA" -- "$file")" ]] || exit 0
+            git ls-tree "$HEAD_SHA" -- "$file" | grep -qE '^100(644|755) blob ' || exit 0
+            before="$RUNNER_TEMP/before.${file##*.}"
+            after="$RUNNER_TEMP/after.${file##*.}"
+            git show "$BASE:$file" > "$before"
+            git show "$HEAD_SHA:$file" > "$after"
+            # Difftastic ignores ALL comments; retain compiler/bundler/coverage directives.
+            if grep -Eq '@ts-|@jsx|@internal|<reference\b|<amd-|sourceMappingURL|sourceURL|webpack|vite|[#@]__|/\*!|(istanbul|c8|v8)[[:space:]]+ignore' "$before" "$after"; then
+              exit 0
+            fi
+            case "$file" in
+              *.js|*.cjs|*.mjs|*.jsx)
+                # JavaScript JSDoc can contain type information.
+                if grep -Fq '/**' "$before" "$after"; then exit 0; fi ;;
+            esac
+            if ! difft --ignore-comments --check-only --exit-code "$before" "$after"; then
+              exit 0
+            fi
+          done < "$RUNNER_TEMP/syntax-files"
+          echo 'build_and_test=false' >> "$GITHUB_OUTPUT"

.github/workflows/lua-lint.yml

@@ -0,0 +1,92 @@
+name: Lua Lint
+
+on:
+  push:
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
+  cancel-in-progress: true
+
+env:
+  EMMYLUA_CHECK_VERSION: "0.25.1"
+
+jobs:
+  changes:
+    uses: ./.github/workflows/ci-changes.yml
+
+  lint:
+    needs: changes
+    if: ${{ !cancelled() && needs.changes.outputs.lua_lint != 'false' }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+      - uses: actions/setup-node@v7
+        with:
+          node-version: lts/*
+      - name: Generate Factorio typedefs
+        run: |
+          npm install --prefix "$RUNNER_TEMP/fmtk" factoriomod-debug
+          "$RUNNER_TEMP/fmtk/node_modules/.bin/fmtk" luals-addon "$RUNNER_TEMP"
+      - name: Install emmylua_check
+        run: |
+          curl -fsSL "https://github.com/EmmyLuaLs/emmylua-analyzer-rust/releases/download/${EMMYLUA_CHECK_VERSION}/emmylua_check-linux-x64.tar.gz" \
+            | tar -xz -C "$RUNNER_TEMP"
+      - name: Run Lint Report
+        shell: bash
+        run: |
+          # The typedefs are generated per run, so their path is passed via a second config
+          jq -n --arg lib "$RUNNER_TEMP/factorio/library" \
+            '{ workspace: { library: [ $lib ] } }' \
+            > "$RUNNER_TEMP/ci.emmyrc.json"
+
+          # Exits non zero on error severity, so the gate below is used instead
+          "$RUNNER_TEMP/emmylua_check" . --config ".emmyrc.json,$RUNNER_TEMP/ci.emmyrc.json" \
+            --output-format json --output check.json || true
+
+          # Credit to https://github.com/Krealle/luals-check-action/blob/main/action.yml
+          # Although some minor fixes were needed
+
+          # Format and print the messages (would be nice to format as a table, but that's too complex for jq)
+          jq -r --arg root "$PWD/" \
+            '.[] | (.file | ltrimstr($root)) as $file | .diagnostics[] |
+              {
+                file: $file,
+                code: .code,
+                line: .range.start.line,
+                message: (.message | split("\n")
+                  | map(if startswith("- ") then .[2:] else . end)
+                  | join("\n")),
+                severity: (if .severity <= 1 then "ERR" else "WARN" end)
+              } |
+              "**[\(.severity)] \(.code):** \(.file)#L\(.line + 1)<br><code>\(.message)</code>"' \
+            check.json > "$GITHUB_STEP_SUMMARY"
+
+          echo ""
+
+          # Github Annotations (limited to 10)
+          jq -r --arg root "$PWD/" \
+            '.[] | (.file | ltrimstr($root)) as $file | .diagnostics[] |
+              {
+                file: $file,
+                title: .code,
+                line: .range.start.line,
+                endLine: .range.end.line,
+                col: .range.start.character,
+                endColumn: .range.end.character,
+                message: (.message | gsub("\n"; "%0A"; "m")),
+                level: (if .severity <= 1 then "error" else "warning" end)
+              } |
+              "::\(.level) file=\(.file),line=\(.line + 1),endLine=\(.endLine + 1),col=\(.col + 1),endColumn=\(.endColumn + 1),title=\(.title)::\(.message) (\(.title))"' \
+            check.json
+
+          # An entry is emitted for every file checked, including clean ones, so
+          # the gate counts diagnostics and asserts the workspace was actually read
+          if [[ $(jq 'length' check.json) -lt 20 ]] ; then
+            echo "::error::Only $(jq 'length' check.json) files were checked, expected the whole workspace"
+            exit 1
+          elif [[ $(jq '[.[].diagnostics[]] | length' check.json) -gt 0 ]] ; then
+            exit 1
+          else
+            echo "✅ All checks succeeded!" | tee "$GITHUB_STEP_SUMMARY"
+          fi

.github/workflows/node.js.yml

@@ -7,64 +7,145 @@ on:
   push:
   pull_request:
 
+# Superseded runs of a branch or pull request are cancelled. Runs on master
+# each get their own group so every commit there is tested.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha || github.ref }}
+  cancel-in-progress: true
+
+env:
+  NODE_VERSION: 24.x
+
 jobs:
+  changes:
+    uses: ./.github/workflows/ci-changes.yml
+
   test:
+    needs: changes
+    if: ${{ !cancelled() && needs.changes.outputs.build_and_test != 'false' }}
     runs-on: ubuntu-latest
+    timeout-minutes: 15
     strategy:
+      fail-fast: false
       matrix:
-        # Supported versions are active lts and maintenance see https://nodejs.org/en/about/releases/
-        node-version: [20.x, 22.x]
-        # Supported versions are latest stable and one minor version before stable (even if from a previous major) 
-        factorio-version: [1.1.110, 2.0.47]
+        # To stay within the concurrent job limit, every Factorio version is
+        # tested on the latest Node.js, and every other supported Node.js
+        # version only with the latest Factorio. Coverage is performed on the
+        # oldest supported Node.js.
+        # Node.js release schedule: https://nodejs.org/en/about/releases/
+        # Supported factorio versions are latest stable and one minor version before stable (even if from a previous major)
+        node-version: [26.x]
+        factorio-version: [1.1.110, 2.0.77, 2.1.17]
+
+        # The tests run in two halves of similar length on separate runners,
+        # the clusterioctl, plugin system and instance integration tests and the rest.
+        tests: [ctl, other]
+
+        include:
+          - node-version: 24.x
+            factorio-version: 2.1.17
+            tests: ctl
+          - node-version: 24.x
+            factorio-version: 2.1.17
+            tests: other
+          - node-version: 22.x
+            factorio-version: 2.1.17
+            tests: ctl
+            coverage: true
+          - node-version: 22.x
+            factorio-version: 2.1.17
+            tests: other
+            coverage: true
 
     steps:
-    - uses: actions/checkout@v4
-    - uses: pnpm/action-setup@v4
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v4
+    - uses: actions/checkout@v7
+    - name: Prepare and install
+      uses: ./.github/actions/pnpm-install
       with:
         node-version: ${{ matrix.node-version }}
-    - name: Prepare and install
-      run: pnpm i --no-frozen-lockfile
     - name: Use Factorio ${{ matrix.factorio-version }}
       run: wget -q -O factorio.tar.gz https://www.factorio.com/get-download/${{ matrix.factorio-version }}/headless/linux64 && tar -xf factorio.tar.gz && rm factorio.tar.gz
     - name: Run tests
-      if: ${{ matrix.node-version != '20.x' || matrix.factorio-version != '1.1.110' }}
-      run: pnpm test
+      if: ${{ !matrix.coverage }}
+      run: pnpm test --grep "^(Integration of Clusterio (clusterioctl|plugin system)|Clusterio Instance) " ${{ matrix.tests == 'other' && '--invert' || '' }}
     - name: Run coverage
-      if: ${{ matrix.node-version == '20.x' && matrix.factorio-version == '1.1.110' }}
-      run: pnpm run ci-cover
-    - name : Upload coverage to Codecov
-      if: ${{ matrix.node-version == '20.x' && matrix.factorio-version == '1.1.110' }}
-      uses: codecov/codecov-action@v4
+      if: ${{ matrix.coverage }}
+      run: pnpm run ci-cover --grep "^(Integration of Clusterio (clusterioctl|plugin system)|Clusterio Instance) " ${{ matrix.tests == 'other' && '--invert' || '' }}
+    - name: Upload coverage to Codecov
+      if: ${{ matrix.coverage }}
+      uses: codecov/codecov-action@v7
       with:
         files: ./coverage/lcov.info
+        # Otherwise the raw V8 coverage in coverage/tmp is uploaded as well
+        disable_search: true
         token: ${{ secrets.CODECOV_TOKEN }}
+    - name: Upload test logs for debugging
+      if: ${{ !cancelled() }}
+      uses: actions/upload-artifact@v7
+      with:
+        name: logs-${{ matrix.node-version }}-${{ matrix.factorio-version }}-${{ matrix.tests }}
+        path: temp/test/logs
+
+  version-compat:
+    needs: changes
+    if: ${{ !cancelled() && needs.changes.outputs.build_and_test != 'false' }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    env:
+      # npm version spec for the published side of the compatibility test.
+      # If each release is compatible with the one before it then testing
+      # against the latest release transitively covers older versions too.
+      PUBLISHED_VERSION: latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - controller: local
+            host: published
+          - controller: published
+            host: local
+
+    steps:
+    - uses: actions/checkout@v7
+    - name: Prepare and install
+      uses: ./.github/actions/pnpm-install
+      with:
+        node-version: ${{ env.NODE_VERSION }}
+    - name: Test ${{ matrix.controller }} controller with ${{ matrix.host }} host
+      run: >
+        node scripts/version-compat-test.js
+        --controller ${{ matrix.controller }}
+        --host ${{ matrix.host }}
+        --published-version "$PUBLISHED_VERSION"
 
   lint:
+    needs: changes
+    if: ${{ !cancelled() && needs.changes.outputs.js_lint != 'false' }}
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     steps:
-    - uses: actions/checkout@v4
-    - uses: pnpm/action-setup@v4
-    - uses: actions/setup-node@v4
+    - uses: actions/checkout@v7
+    - uses: ./.github/actions/pnpm-install
       with:
-        node-version: 20.x
-    - run: pnpm i --no-frozen-lockfile
+        node-version: ${{ env.NODE_VERSION }}
+        ignore-scripts: true
     - run: pnpm run lint
 
   build:
+    needs: changes
+    if: ${{ !cancelled() && needs.changes.outputs.build_and_test != 'false' }}
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     steps:
-    - uses: actions/checkout@v4
-    - uses: pnpm/action-setup@v4
-    - uses: actions/setup-node@v4
+    - uses: actions/checkout@v7
+    - uses: ./.github/actions/pnpm-install
       with:
-        node-version: 20.x
-    - run: pnpm i --no-frozen-lockfile
+        node-version: ${{ env.NODE_VERSION }}
+        ignore-scripts: true
     - run: pnpm run build-mod
     # Upload build to artifacts
     - name: Upload build to artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       with:
         name: clusterio_lib
         path: ./dist

.github/workflows/publish.yml

@@ -6,24 +6,26 @@ on:
     types:
       - released
 
+permissions:
+  id-token: write
+  contents: write
+
 jobs:
   npm:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
-      - uses: pnpm/action-setup@v4
+      - uses: actions/checkout@v7
+      - uses: pnpm/action-setup@v6
+      - uses: actions/setup-node@v7
         with:
-          version: 8
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 22.x
+          node-version: 24.x
           registry-url: https://registry.npmjs.org
       - run: pnpm install --no-frozen-lockfile
-      - run: pnpm -r --filter='./{plugins,packages}/*' publish --no-git-checks
+      - run: pnpm -r --filter='./packages/*' --filter='./plugins/*' --fail-if-no-match publish --no-git-checks
         env:
-          NODE_AUTH_TOKEN: $${{ secrets.NPM_TOKEN }}
-      - uses: softprops/action-gh-release@v2
+          NODE_ENV: production
+      - uses: softprops/action-gh-release@v3
         with:
           files: pnpm-lock.yaml
 
@@ -31,18 +33,16 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
-      - uses: pnpm/action-setup@v4
+      - uses: actions/checkout@v7
+      - uses: pnpm/action-setup@v6
+      - uses: actions/setup-node@v7
         with:
-          version: 8
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 22.x
+          node-version: 24.x
       - run: pnpm install --no-frozen-lockfile
-      - run: pnpm -r --filter='./{plugins,packages}/*' run build-mod --output-dir ../../dist
+      - run: pnpm -r --filter='./packages/*' --filter='./plugins/*' --fail-if-no-match run build-mod --output-dir ../../dist
       - run: node ./publish.js factorio ./dist
         env:
           FACTORIO_TOKEN: ${{ secrets.FACTORIO_TOKEN }}
-      - uses: softprops/action-gh-release@v2
+      - uses: softprops/action-gh-release@v3
         with:
           files: ./dist/*

.gitignore

@@ -10,9 +10,8 @@ pids
 # Directory for instrumented libs generated by jscoverage/JSCover
 lib-cov
 
-# Coverage directories used by tools like nyc and codecov
+# Coverage directories used by tools like c8 and codecov
 coverage
-.nyc_output
 
 # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
 .grunt
@@ -24,29 +23,19 @@ coverage
 build/Release
 dist/
 
-# Autogenerated docs output
-/docs/api
-
 node_modules
 
-Factorio*
-!*Factorio*.ts
-!*Factorio*.tsx
-!*Factorio*.js
-/factorio
-!/test/file/factorio
-!/test/file/html/*.html
-!/test/lib/factorio
-!/packages/lib/src/factorio
+/factorio*
 /instances
 /mods
 /database
 /plugin-list.json
-/config-controller.json
-/config-control.json
-/config-host.json
+/config-*.json
+/config-*.json.lock
+/npm-operation.lock*
 pnpm-lock.yaml
 mod_cache.json
+.luarc.json
 /static/
 saves
 /temp/

.npmrc

@@ -1 +0,0 @@
-auto-install-peers=false

.oxlintrc.json

@@ -0,0 +1,458 @@
+// Formatting rules come from @stylistic as Oxlint does not implement them.
+{
+	"$schema": "./node_modules/oxlint/configuration_schema.json",
+	"plugins": [
+		"node"
+	],
+	"jsPlugins": [
+		"@stylistic/eslint-plugin"
+	],
+	"categories": {
+		"correctness": "off"
+	},
+	"env": {
+		"builtin": true,
+		"node": true
+	},
+	"ignorePatterns": [
+		"**/dist/",
+		"dist/"
+	],
+	"rules": {
+		"@stylistic/indent": [
+			"error",
+			"tab",
+			{
+				"ignoredNodes": [
+					"JSXFragment"
+				],
+				"ignoreComments": true,
+				"SwitchCase": 1
+			}
+		],
+		"accessor-pairs": "error",
+		"array-callback-return": "error",
+		"arrow-body-style": "error",
+		"block-scoped-var": "error",
+		"complexity": [
+			"error",
+			{
+				"max": 25
+			}
+		],
+		"curly": "error",
+		"default-case": "error",
+		"default-case-last": "error",
+		"eqeqeq": "error",
+		"func-name-matching": "error",
+		"func-style": [
+			"error",
+			"declaration",
+			{
+				"allowArrowFunctions": true
+			}
+		],
+		"grouped-accessor-pairs": "error",
+		"guard-for-in": "error",
+		"id-match": "error",
+		"max-depth": "error",
+		"max-nested-callbacks": "error",
+		"new-cap": [
+			"error",
+			{
+				"capIsNewExceptions": [
+					"StringEnum",
+					"StringKey"
+				],
+				"capIsNewExceptionPattern": "^Type\\.",
+				"newIsCapExceptions": [
+					"constructor"
+				]
+			}
+		],
+		"no-alert": "error",
+		"no-array-constructor": "error",
+		"no-caller": "error",
+		"no-console": "error",
+		"no-constant-condition": [
+			"error",
+			{
+				"checkLoops": false
+			}
+		],
+		"no-constructor-return": "error",
+		"no-div-regex": "error",
+		"no-duplicate-imports": "error",
+		"no-else-return": "error",
+		"no-eq-null": "error",
+		"no-eval": "error",
+		"no-extend-native": "error",
+		"no-extra-bind": "error",
+		"no-extra-label": "error",
+		"no-implicit-coercion": "error",
+		"no-implicit-globals": "error",
+		"no-implied-eval": "error",
+		"no-iterator": "error",
+		"no-label-var": "error",
+		"no-lone-blocks": "error",
+		"no-lonely-if": "error",
+		"no-loop-func": "error",
+		"no-multi-assign": "error",
+		"no-multi-str": "error",
+		"no-nested-ternary": "error",
+		"no-new": "error",
+		"no-new-func": "error",
+		"no-new-wrappers": "error",
+		"no-plusplus": [
+			"error",
+			{
+				"allowForLoopAfterthoughts": true
+			}
+		],
+		"no-proto": "error",
+		"no-restricted-globals": "error",
+		"no-restricted-imports": "error",
+		"no-restricted-properties": "error",
+		"no-return-assign": "error",
+		"no-script-url": "error",
+		"no-self-compare": "error",
+		"no-sequences": "error",
+		"no-shadow": [
+			"error",
+			{
+				"allow": [
+					"Event",
+					"Request",
+					"yargs"
+				]
+			}
+		],
+		"no-template-curly-in-string": "error",
+		"no-throw-literal": "error",
+		"no-unmodified-loop-condition": "error",
+		"no-unneeded-ternary": "error",
+		"no-unused-expressions": "error",
+		"no-useless-backreference": "error",
+		"no-useless-call": "error",
+		"no-useless-computed-key": "error",
+		"no-useless-concat": "error",
+		"no-useless-rename": "error",
+		"no-useless-return": "error",
+		"no-var": "error",
+		"no-void": [
+			"error",
+			{
+				"allowAsStatement": true
+			}
+		],
+		"prefer-arrow-callback": "error",
+		"prefer-exponentiation-operator": "error",
+		"prefer-numeric-literals": "error",
+		"prefer-object-spread": "error",
+		"prefer-promise-reject-errors": "error",
+		"prefer-regex-literals": "error",
+		"prefer-rest-params": "error",
+		"prefer-spread": "error",
+		"prefer-template": "error",
+		"radix": [
+			"error",
+			"always"
+		],
+		"symbol-description": "error",
+		"unicode-bom": [
+			"error",
+			"never"
+		],
+		"vars-on-top": "error",
+		"yoda": [
+			"error",
+			"never",
+			{
+				"exceptRange": true
+			}
+		],
+		"node/no-sync": [
+			"error",
+			{
+				"ignores": [
+					"TechnologySync",
+					"techsToSync"
+				]
+			}
+		],
+		"@stylistic/array-bracket-newline": "off",
+		"@stylistic/array-bracket-spacing": [
+			"error",
+			"never"
+		],
+		"@stylistic/array-element-newline": "off",
+		"@stylistic/arrow-parens": "off",
+		"@stylistic/arrow-spacing": [
+			"error",
+			{
+				"after": true,
+				"before": true
+			}
+		],
+		"@stylistic/block-spacing": "error",
+		"@stylistic/brace-style": [
+			"error",
+			"1tbs",
+			{
+				"allowSingleLine": true
+			}
+		],
+		"@stylistic/comma-dangle": [
+			"error",
+			{
+				"arrays": "always-multiline",
+				"objects": "always-multiline",
+				"imports": "always-multiline",
+				"exports": "always-multiline",
+				"functions": "only-multiline",
+				"generics": "only-multiline",
+				"enums": "always-multiline",
+				"tuples": "always-multiline"
+			}
+		],
+		"@stylistic/comma-spacing": "error",
+		"@stylistic/comma-style": [
+			"error",
+			"last"
+		],
+		"@stylistic/computed-property-spacing": [
+			"error",
+			"never"
+		],
+		"@stylistic/dot-location": [
+			"error",
+			"property"
+		],
+		"@stylistic/eol-last": "error",
+		"@stylistic/function-call-argument-newline": "off",
+		"@stylistic/function-paren-newline": "off",
+		"@stylistic/generator-star-spacing": [
+			"error",
+			{
+				"before": false,
+				"after": true
+			}
+		],
+		"@stylistic/implicit-arrow-linebreak": "error",
+		"@stylistic/jsx-quotes": "error",
+		"@stylistic/key-spacing": "error",
+		"@stylistic/keyword-spacing": "error",
+		"@stylistic/line-comment-position": "off",
+		"@stylistic/linebreak-style": [
+			"error",
+			"unix"
+		],
+		"@stylistic/lines-around-comment": "off",
+		"@stylistic/lines-between-class-members": [
+			"error",
+			"always",
+			{
+				"exceptAfterSingleLine": true
+			}
+		],
+		"@stylistic/max-len": [
+			"error",
+			{
+				"code": 120
+			}
+		],
+		"@stylistic/max-statements-per-line": "off",
+		"@stylistic/multiline-comment-style": [
+			"error",
+			"separate-lines"
+		],
+		"@stylistic/multiline-ternary": "off",
+		"@stylistic/new-parens": "error",
+		"@stylistic/newline-per-chained-call": "off",
+		"@stylistic/no-confusing-arrow": "error",
+		"@stylistic/no-extra-parens": "off",
+		"@stylistic/no-floating-decimal": "error",
+		"@stylistic/no-mixed-operators": [
+			"error",
+			{
+				"groups": [
+					[
+						"&",
+						"|",
+						"^",
+						"~",
+						"<<",
+						">>",
+						">>>"
+					],
+					[
+						"==",
+						"!=",
+						"===",
+						"!==",
+						">",
+						">=",
+						"<",
+						"<="
+					],
+					[
+						"in",
+						"instanceof"
+					]
+				]
+			}
+		],
+		"@stylistic/no-multi-spaces": "error",
+		"@stylistic/no-multiple-empty-lines": "error",
+		"@stylistic/no-tabs": "off",
+		"@stylistic/no-trailing-spaces": "error",
+		"@stylistic/no-whitespace-before-property": "error",
+		"@stylistic/nonblock-statement-body-position": "error",
+		"@stylistic/object-curly-newline": "error",
+		"@stylistic/object-curly-spacing": "off",
+		"@stylistic/one-var-declaration-per-line": "error",
+		"@stylistic/operator-linebreak": [
+			"error",
+			"after",
+			{
+				"overrides": {
+					"?": "before",
+					":": "before",
+					"||": "before",
+					"&&": "before",
+					"??": "before",
+					"|": "before",
+					"&": "before"
+				}
+			}
+		],
+		"@stylistic/padded-blocks": "off",
+		"@stylistic/padding-line-between-statements": "error",
+		"@stylistic/quote-props": "off",
+		"@stylistic/quotes": [
+			"error",
+			"double",
+			{
+				"avoidEscape": true
+			}
+		],
+		"@stylistic/rest-spread-spacing": [
+			"error",
+			"never"
+		],
+		"@stylistic/semi": "error",
+		"@stylistic/semi-spacing": "error",
+		"@stylistic/semi-style": "off",
+		"@stylistic/space-before-blocks": "error",
+		"@stylistic/space-before-function-paren": "off",
+		"@stylistic/space-in-parens": [
+			"error",
+			"never"
+		],
+		"@stylistic/space-infix-ops": "off",
+		"@stylistic/space-unary-ops": "error",
+		"@stylistic/spaced-comment": [
+			"error",
+			"always",
+			{
+				"line": {
+					"markers": [
+						"/"
+					]
+				}
+			}
+		],
+		"@stylistic/switch-colon-spacing": "error",
+		"@stylistic/template-curly-spacing": [
+			"error",
+			"never"
+		],
+		"@stylistic/template-tag-spacing": "error",
+		"@stylistic/wrap-iife": "error",
+		"@stylistic/wrap-regex": "off",
+		"@stylistic/yield-star-spacing": "error"
+	},
+	"overrides": [
+		{
+			"files": [
+				"{packages,plugins}/**/*.{ts,tsx}"
+			],
+			"rules": {
+				"no-unused-vars": "off",
+				"typescript/ban-ts-comment": "error",
+				"typescript/no-duplicate-enum-values": "error",
+				"typescript/no-empty-object-type": "error",
+				"typescript/no-explicit-any": "off",
+				"typescript/no-extra-non-null-assertion": "error",
+				"typescript/no-misused-new": "error",
+				"typescript/no-namespace": "error",
+				"typescript/no-non-null-asserted-optional-chain": "error",
+				"typescript/no-require-imports": "off",
+				"typescript/no-this-alias": "error",
+				"typescript/no-unnecessary-type-constraint": "error",
+				"typescript/no-unsafe-declaration-merging": "error",
+				"typescript/no-unsafe-function-type": "error",
+				"typescript/no-wrapper-object-types": "error",
+				"typescript/prefer-as-const": "error",
+				"typescript/prefer-namespace-keyword": "error",
+				"typescript/triple-slash-reference": "off",
+				"no-shadow": [
+					"error",
+					{
+						"allow": [
+							"Event",
+							"Request",
+							"yargs"
+						]
+					}
+				],
+				"no-useless-constructor": "error"
+			},
+			"plugins": [
+				"typescript"
+			]
+		},
+		{
+			"files": [
+				"test/**/*.js",
+				"plugins/*/test/**/*.js"
+			],
+			"rules": {
+				"prefer-arrow-callback": "off"
+			},
+			"env": {
+				"mocha": true
+			}
+		},
+		{
+			"files": [
+				"packages/web_ui/src/**/*.{ts,tsx}",
+				"packages/lib/browser.ts",
+				"packages/create/templates/*/web/**/*.{ts,js,tsx,jsx}",
+				"{packages,plugins}/*/web/**/*.{ts,tsx}"
+			],
+			"globals": {
+				"SpeechRecognitionAlternative": "readonly",
+				"SpeechRecognitionResult": "readonly",
+				"SpeechRecognitionResultList": "readonly"
+			},
+			"env": {
+				"browser": true
+			}
+		},
+		{
+			"files": [
+				"packages/create/templates/**/*.{js,cjs,ts,cts,jsx,tsx}"
+			],
+			"rules": {
+				"@stylistic/indent": "off",
+				"@stylistic/spaced-comment": "off",
+				"@stylistic/comma-spacing": "off",
+				"@stylistic/max-len": "off"
+			},
+			"jsPlugins": [
+				"@stylistic/eslint-plugin"
+			]
+		}
+	]
+}

AGENTS.md

@@ -0,0 +1,36 @@
+# Working on Clusterio
+
+Clusterio manages distributed Factorio servers through a controller, hosts, and plugins.
+
+Read [contributing](docs/contributing.md) for the project map, setup, commands, debugging, tests, and code style.
+For PR reviews, follow the [review guide](docs/pr-review-guide.md), including its candidate ledger and final evidence audit.
+Use the detailed guides for the affected area:
+
+- [Communication and routing](docs/communication.md), [wire protocol](docs/devs/protocol.md), and [configuration](docs/config-system.md).
+- [Plugins](docs/writing-plugins.md), [plugin migration](docs/devs/plugin-migration-to-2.0.md), and [Factorio/Lua](docs/developing-for-clusterio.md).
+- [Compatibility policies](docs/decisions.md) and [releases](docs/release-workflow.md).
+
+
+## Working rules
+
+- Inspect `git status` before editing.
+  Preserve unrelated work and external plugin repositories; continue an existing task branch.
+- Read the relevant source and tests before changing behavior.
+  If documentation and implementation disagree, report the discrepancy and distinguish observed behavior from intended policy.
+  Update affected documentation in the same change.
+- Follow nearby code and `.oxlintrc.json`: tabs, double quotes, semicolons, and `.js` extensions in relative TypeScript imports.
+  Import shared public APIs through `@clusterio/lib` and check Node/browser exports when changing them.
+- Run commands from the root using the pinned pnpm version and the [documented Node requirements](docs/contributing.md#supported-nodejs-and-factorio-versions).
+  Install with `pnpm install --no-frozen-lockfile`; the lockfile is intentionally ignored.
+- `pnpm build` compiles TypeScript.
+  It does not regenerate validators or production web bundles; use the appropriate package's `prepare` script.
+  Edit sources, not generated outputs.
+- Start validation with focused tests, then run `pnpm test` and `pnpm lint` for code changes when possible.
+  Root tests include integration setup even with fast/external exclusions.
+  The harness needs Factorio, recreates `temp/test/`, and shares ports 8880/4443; do not run competing suites.
+- Report checks, failures, skips, and unverified behavior precisely.
+  Documentation-only changes need path, command, and formatting checks.
+- Preview cleanup with `node clean.js --dry-run`; see the [cleanup scopes](docs/contributing.md#cleaning-generated-and-runtime-files).
+  Runtime-data deletion and release publication require explicit authorization.
+  Keep local configs, credentials, runtime data, and generated output out of commits.
+- Follow the [PR template](.github/pull_request_template.md), including `### Changelog` (`None.` when appropriate).

CHANGELOG.md

@@ -31,6 +31,409 @@ Many thanks to the following for contributing to this release:
 [@username](https://github.com/username)
 -->
 
+## Version 2.0.3
+
+### Features
+
+- Added per instance options to choose which parts of the player inventory sync covers. [#968](<https://github.com/clusterio/clusterio/issues/968>)
+- Added opt-in UDP messaging between instances and the Factorio server via `factorio.enable_lua_udp`, with a `sendUdp` plugin API, `clusterio_api.send_udp` in-game and a `LuaUdp` plugin feature flag. [[#969](<https://github.com/clusterio/clusterio/issues/969>)](<https://github.com/clusterio/clusterio/issues/969>)
+- Added notes that can be attached to hosts, instances, users, roles, mod packs, mods and saves in the web interface and through ctl. [#903](<https://github.com/clusterio/clusterio/issues/903>)
+- Added tools to inspect, replace, delete and unlock player data stored by inventory sync, in the web interface and as `clusterioctl inventory-sync` commands. [#1003](<https://github.com/clusterio/clusterio/issues/1003>)
+- Notes in the web interface render as Markdown and link `@<type>/<id>` mentions to the resource. [#1000](<https://github.com/clusterio/clusterio/pull/1000>)
+- Added timestamps to log lines in the web interface console. [#1137](<https://github.com/clusterio/clusterio/pull/1137>)
+- Added syncing of quick bar slots that hold a specific blueprint, blueprint book or planner, including ones from the player's blueprint library, on Factorio 2.1. [#1092](<https://github.com/clusterio/clusterio/issues/1092>)
+- Added a `set_destination` remote interface to Player Sync. A plugin that moves a player to another instance calls it before `connect_to_server`, and the player's data is sent to that instance while the client reconnects, so the join applies it without a download. [#1099](<https://github.com/clusterio/clusterio/issues/1099>)
+- Added a cluster research queue to research_sync: servers can follow one research queue, set from the research screen on any following server, with a checkbox on the lab window. [#1115](<https://github.com/clusterio/clusterio/pull/1115>)
+
+### Fixes
+
+- Fixed instances that start at the same time each downloading a new Factorio version into the same files and leaving a corrupt install. [[#1105](<https://github.com/clusterio/clusterio/issues/1105>)](<https://github.com/clusterio/clusterio/issues/1105>)
+- Fixed `controller.max_send_buffer_size` counting buffered messages in UTF-16 code units instead of UTF-8 bytes, which let non-ASCII messages go over the limit. [[#1108](<https://github.com/clusterio/clusterio/issues/1108>)](<https://github.com/clusterio/clusterio/issues/1108>)
+- Removed incompatible Server Select and Discord Bridge releases from the installer's plugin choices so selecting all offered plugins no longer installs them. [#1102](<https://github.com/clusterio/clusterio/issues/1102>)
+- Fixed reading map exchange strings from Factorio 2.1.18 and later, which gave wrong enemy evolution and expansion settings and made `instance load-scenario --map-exchange-string` fail. [[#1131](<https://github.com/clusterio/clusterio/issues/1131>)](<https://github.com/clusterio/clusterio/issues/1131>)
+- Fixed Player Sync erroring when the controller returned no data for a downloading player, which left the player waiting for the timeout. [#1094](<https://github.com/clusterio/clusterio/issues/1094>)
+- Fixed spoilable items arriving fresh after being serialized, the spoil percent is now kept. [#1093](<https://github.com/clusterio/clusterio/issues/1093>)
+- Fixed named personal logistic groups losing their requests and trash rules when joining a server where the group was missing or empty. [#1091](<https://github.com/clusterio/clusterio/issues/1091>)
+- Fixed Player Sync leaving quick bar slots from an earlier visit in place, which made moved or cleared slots come back after changing server. [#1092](<https://github.com/clusterio/clusterio/issues/1092>)
+- Fixed research_sync sending research it received from the controller back to it, so every instance got the research again each time an instance started. [#1110](<https://github.com/clusterio/clusterio/issues/1110>)
+- Fixed items in main inventory slots from armor equipment such as toolbelts not fitting in the inventory when joining another server. [#1100](<https://github.com/clusterio/clusterio/issues/1100>)
+
+### Changes
+
+- Replaced jszip with yauzl and yazl so saves and mods are no longer loaded fully into memory when patched, read or exported. [#1002](<https://github.com/clusterio/clusterio/issues/1002>)
+- Bumped dependency versions, including typebox 0.34 and react-router 7. Plugins using `@sinclair/typebox` should update to ^0.34. [#1113](<https://github.com/clusterio/clusterio/pull/1113>)
+
+### Contributors
+
+Many thanks to the following for contributing to this release:
+[@psihius](<https://github.com/psihius>), [@ILLISIS](<https://github.com/ILLISIS>), [@bbassie](<https://github.com/bbassie>), [@ColumbusLabs](<https://github.com/ColumbusLabs>)
+
+### Statistics
+
+Commits: 101  Pull Requests: 29  Files Changed: 135  Additions: +8,830  Deletions: -994
+
+## Version 2.0.2
+
+### Fixes
+
+- Fixed installation with selected plugins by relying on automatic plugin discovery, and ensured installer failures return a nonzero exit status. [#1082](<https://github.com/clusterio/clusterio/pull/1082>), [#1084](<https://github.com/clusterio/clusterio/issues/1084>)
+- Fixed web plugin `controllerConnectionEvent` handlers receiving the connector's event data instead of the event name. [#1083](<https://github.com/clusterio/clusterio/issues/1083>)
+- Updated installation instructions to recommend latest Node.js LTS and corrected outdated mod management, CLI, plugin, and release documentation. [#1086](<https://github.com/clusterio/clusterio/pull/1086>)
+
+### Meta
+
+- Made player-auth login tests independent of wall-clock timing and added verification-token expiry coverage. [#1087](<https://github.com/clusterio/clusterio/pull/1087>)
+- Added Node.js 26 to the CI test matrix across all tested Factorio versions. [#1088](<https://github.com/clusterio/clusterio/pull/1088>)
+
+Many thanks to the following for contributing to this release:
+[@psihius](<https://github.com/psihius>), [@bbassie](<https://github.com/bbassie>)
+
+## Version 2.0.1
+
+### Fixes
+
+- Removed obsolete development-branch warnings from controller, host and ctl startup. [#1078](<https://github.com/clusterio/clusterio/pull/1078>)
+- Removed the obsolete alpha label and development warning from the Clusterio Library mod title and description. [#1079](<https://github.com/clusterio/clusterio/pull/1079>)
+- Fixed Factorio mod release uploads to use valid multipart requests and files from the requested output directory, uploading variants in version order. [#1080](<https://github.com/clusterio/clusterio/pull/1080>)
+
+Many thanks to the following for contributing to this release:
+[@psihius](<https://github.com/psihius>)
+
+## Version 2.0.0
+
+### Features
+
+- Mod packs now show informational notices for disabled recommended mods and available compatible updates. [#949](<https://github.com/clusterio/clusterio/issues/949>)
+- Added host, server name, save copy and start options to the create instance dialog in the web UI. [#405](<https://github.com/clusterio/clusterio/issues/405>)
+- Added `InstanceSaveGameRequest` and `clusterioctl instance save-game` to save the running game of an instance. [#405](<https://github.com/clusterio/clusterio/issues/405>)
+- Added `permissions` to `PluginDeclaration` and a `Permissions` type registry so plugin permission names are checked at compile time. [#987](<https://github.com/clusterio/clusterio/issues/987>)
+- Added Update All to the web interface and `--all` to the ctl update commands, updating the core package and all npm installed plugins in one npm call. [#910](<https://github.com/clusterio/clusterio/issues/910>)
+- Added typed hook system for plugin registration. ([#730](<https://github.com/clusterio/clusterio/issues/730>))
+- Added `plugin install <package>` command to controller, host and ctl which installs a plugin from npm and adds it to the plugin list. [#1008](<https://github.com/clusterio/clusterio/issues/1008>)
+- Added a guard that prevents controller and host restart requests from unintentionally downgrading Clusterio. [#950](<https://github.com/clusterio/clusterio/issues/950>)
+- Added option to load static assets from a separate URL from where the controller's web API is hosted at. [#983](<https://github.com/clusterio/clusterio/pull/983>)
+- Added `clusteriocontroller copy-static` command to copy static web assets to a folder to ease hosting assets on a separate server. [#983](<https://github.com/clusterio/clusterio/pull/983>)
+- Added Mark Restart Required to the host and controller pages and matching ctl commands, for plugins installed by other means than the install request. [#1043](<https://github.com/clusterio/clusterio/pull/1043>)
+- Added the RoleViewPageBeforePermissions web extension slot for plugin components above the permissions on the role page. [#1045](<https://github.com/clusterio/clusterio/pull/1045>)
+- Added a list of permission groups to the role page, highlighting groups with granted permissions. [#1044](<https://github.com/clusterio/clusterio/pull/1044>)
+- Added `clusteriohost create-scenario` to create a scenario with the Clusterio modules patched in for use outside of Clusterio. [#1014](<https://github.com/clusterio/clusterio/pull/1014>)
+- Plugins can declare a `migrationEntrypoint` to migrate the config fields and role permissions core stores for them. Configs track the plugin version they were last loaded with in a hidden `<plugin>.version` field. [#1073](<https://github.com/clusterio/clusterio/pull/1073>)
+
+### Fixes
+
+- Deprecation warning DEP0190 is no longer printed when installing. [#851](<https://github.com/clusterio/clusterio/issues/851>)
+- Events sent to subscribers are no longer addressed to the request id of the request that created the subscription. [#847](<https://github.com/clusterio/clusterio/issues/847>)
+- Factorio account token no longer written to the log when a mod download fails. [#795](<https://github.com/clusterio/clusterio/issues/795>)
+- Failed downloads no longer leave a temporary file and an open file handle behind, which could shift the file names used by later downloads. [#957](<https://github.com/clusterio/clusterio/pull/957>)
+- Requests that could not be forwarded to the next hop are no longer answered a second time when the link disconnects. [#650](<https://github.com/clusterio/clusterio/issues/650>)
+- Events broadcast from an instance to all hosts are now delivered to every host instead of only the one running the instance. [#575](<https://github.com/clusterio/clusterio/issues/575>)
+- Web interface now asks to be reloaded when the controller's plugins change, instead of continuing against plugins that are no longer loaded. [#804](<https://github.com/clusterio/clusterio/issues/804>)
+- Plugin list no longer reports a plugin added since the page was opened as having failed to load. [#729](<https://github.com/clusterio/clusterio/issues/729>)
+- Instance console no longer hides the Factorio server's replies to console commands, or Factorio's own errors, when filtering to game activity. [#853](<https://github.com/clusterio/clusterio/issues/853>)
+- Allow player online autosave slots to be disabled while autosaves are enabled. [#966](<https://github.com/clusterio/clusterio/issues/966>)
+- Plugin web bundles are now loaded relative to `staticRoot` instead of `webRoot`. [#980](<https://github.com/clusterio/clusterio/issues/980>)
+- Fixed inventory_sync not preserving the personal roboport toggle, the equipment movement bonus toggle, game view settings such as alt mode, and toggleable mod shortcuts between instances. [#898](<https://github.com/clusterio/clusterio/issues/898>)
+- Schema validation errors are now included when an InvalidMessage is logged from IPC and event handlers. [#986](<https://github.com/clusterio/clusterio/issues/986>)
+- Fixed clusterioctl not being able to reference hosts, instances, mod packs and roles by an integer like name. [#886](<https://github.com/clusterio/clusterio/issues/886>)
+- Fixed the web-only plugin template referencing a permission that was never defined. [#987](<https://github.com/clusterio/clusterio/issues/987>)
+- Config files are no longer world readable by default. [#1005](<https://github.com/clusterio/clusterio/issues/1005>)
+- Fixed failed recipe notification names being duplicated on every upload from the same instance in inventory sync. [#964](<https://github.com/clusterio/clusterio/issues/964>)
+- Instances refuse to start with a mod pack for a newer Factorio version than the instance runs, instead of Factorio silently loading default mod settings. [#1006](<https://github.com/clusterio/clusterio/issues/1006>)
+- Documented the config options missing from configuration.md, marked the internal ones and noted the validation rules. [#985](<https://github.com/clusterio/clusterio/issues/985>)
+- Fixed concurrent saves of the same file racing on a shared temporary file. [#1026](<https://github.com/clusterio/clusterio/pull/1026>)
+- Fixed control connections leaving their log subscription and debug dump listeners attached after closing. [#1027](<https://github.com/clusterio/clusterio/pull/1027>)
+- Fixed the Load Scenario modal reading the wrong field for map settings. [#1032](<https://github.com/clusterio/clusterio/pull/1032>)
+- Fixed the controller exiting when a control message's permission check threw an unexpected error. [#1033](<https://github.com/clusterio/clusterio/pull/1033>)
+- Fixed the host exiting on server log lines that look like actions but do not match the expected format. [#1034](<https://github.com/clusterio/clusterio/pull/1034>)
+- Fixed the controller crashing when a control connection with the WebSocket debug dump active was resumed. [#1035](<https://github.com/clusterio/clusterio/pull/1035>)
+- Fixed deleted users keeping their permissions on any open connection until they disconnected. [#1030](<https://github.com/clusterio/clusterio/pull/1030>)
+- Restored pagination on the instance save list. [#967](<https://github.com/clusterio/clusterio/issues/967>)
+- Mod dependency resolution now only picks releases made for the mod pack's Factorio version. [#965](<https://github.com/clusterio/clusterio/issues/965>)
+- Inventory sync no longer uploads an empty inventory over the stored one after a failed download. [#912](<https://github.com/clusterio/clusterio/issues/912>)
+- Inventory sync now releases players who leave while using a temporary inventory, instead of showing them as busy until the instance stops. [#975](<https://github.com/clusterio/clusterio/pull/975>)
+- Fixed reading map exchange strings from Factorio 2.1.13 and later, which broke `instance load-scenario --map-exchange-string` on current Factorio. [#977](<https://github.com/clusterio/clusterio/pull/977>)
+- Fixed instances getting stuck on a host after a failed assign, and instance create requests no longer accept `instance.assigned_host`. [#1029](<https://github.com/clusterio/clusterio/pull/1029>)
+- Fixed the host exiting when an instance's whitelist or server settings config changed while it was starting, or when tags contained non-string values. [#1028](<https://github.com/clusterio/clusterio/pull/1028>)
+- Fixed a host being able to modify the controller's stored save list for, or forge log messages attributed to, instances assigned to other hosts. [#1036](<https://github.com/clusterio/clusterio/pull/1036>)
+- Fixed a stop request or RCON command hanging when the Factorio process exited before its RCON connection was established. [#1031](<https://github.com/clusterio/clusterio/pull/1031>)
+- Fixed core plugins needlessly installing the web_ui, controller, host and ctl packages. [#1021](<https://github.com/clusterio/clusterio/pull/1021>)
+- Installing a plugin on a host or the controller now marks it as needing a restart. [#1042](<https://github.com/clusterio/clusterio/pull/1042>)
+- Fixed plugin manifest path resolution when loading web assets. [#1046](<https://github.com/clusterio/clusterio/issues/1046>)
+- A plugin whose web build is expected but missing is reported again: `Controller.loadJsonObject(path, true)` throws on a missing file instead of returning `{}`, and a malformed JSON file always throws. [#1046](<https://github.com/clusterio/clusterio/issues/1046>)
+- Preserve full configuration field names when using the CLI config editor. [#796](<https://github.com/clusterio/clusterio/issues/796>)
+- Plugin metrics hook handlers may return nothing. [#1052](<https://github.com/clusterio/clusterio/pull/1052>)
+- Fixed save names given when starting an instance or creating a save not being checked, allowing files outside the instance directory to be written or modified. [#1053](<https://github.com/clusterio/clusterio/pull/1053>)
+- Fixed access tokens from request headers being written to the controller and cluster logs. [#1054](<https://github.com/clusterio/clusterio/pull/1054>)
+- Fixed subscriptions and log following continuing after the user lost permission for them. [#1056](<https://github.com/clusterio/clusterio/pull/1056>)
+- Fixed web interface data staying marked as up to date after the user lost permission to view it, and not loading after permission was granted. [#1058](<https://github.com/clusterio/clusterio/pull/1058>)
+- Fixed ctl config edit showing fields that cannot be edited and leaving out field descriptions. [#1051](<https://github.com/clusterio/clusterio/issues/1051>)
+- Fixed the reason an instance failed to start being logged as "undefined". [#1065](<https://github.com/clusterio/clusterio/issues/1065>)
+- Fixed subspace inventory combinators missing items after instance startup. [#1069](<https://github.com/clusterio/clusterio/issues/1069>)
+- Fixed the controller crashing when a WebSocket client sent an invalid frame before completing the handshake. [#1063](<https://github.com/clusterio/clusterio/issues/1063>)
+- Fixed an instance reusing a stored game port that another process holds, which made it fail to start until the port was freed. [#1065](<https://github.com/clusterio/clusterio/issues/1065>)
+- Fixed credentials in request query parameters, such as OAuth codes, being written to the controller's HTTP log. [#1074](<https://github.com/clusterio/clusterio/pull/1074>)
+- Fixed plugin `ctlConfigFields` not being registered in the clusterioctl config. [#1075](<https://github.com/clusterio/clusterio/pull/1075>)
+- Fixed startup failures and plugin loading when installing Clusterio from published npm packages after the ES module migration. [#1070](<https://github.com/clusterio/clusterio/pull/1070>)
+
+### Changes
+
+- Global chat now filters server-specific GPS, blueprint, train, and train-stop rich-text tags before relaying messages between instances. [#593](<https://github.com/clusterio/clusterio/issues/593>)
+- Instance console filter is now a labelled Game/Instance control instead of a single-label toggle, and Factorio's output in the log consoles is prefixed with `[server]` like every other log level. [#853](<https://github.com/clusterio/clusterio/issues/853>)
+- Inventory sync sends only the recipe notifications that differ from the destination instance's state on download. [#964](<https://github.com/clusterio/clusterio/issues/964>)
+- Log the source of responses received without a pending request, the peer of timed out connections and the number of messages resent on session resume. [#1007](<https://github.com/clusterio/clusterio/issues/1007>)
+- Plugins that are not expected to have a web build are no longer shown with an error in the plugins page. [#1004](<https://github.com/clusterio/clusterio/issues/1004>)
+- Plugins should now return a function to register handlers via hooks. ([#730](<https://github.com/clusterio/clusterio/issues/730>))
+- Plugin templates from `@clusterio/create` use entrypoint functions and hooks. ([#730](<https://github.com/clusterio/clusterio/issues/730>))
+- Improved typing for plugin APIs and webui extension points. ([#730](<https://github.com/clusterio/clusterio/issues/730>))
+- Plugin hooks run concurrently instead of one plugin at a time. ([#730](<https://github.com/clusterio/clusterio/issues/730>))
+- Access tokens are also accepted as an `Authorization: Bearer` header on HTTP API endpoints. [#1009](<https://github.com/clusterio/clusterio/issues/1009>)
+- `plugin install` and `plugin add` with a package name now check that they are run from a Clusterio installation directory. [#1008](<https://github.com/clusterio/clusterio/issues/1008>)
+- Bumped pnpm to 12, the GitHub Actions used by CI to their current majors, and the CI Factorio version to 2.1.17. [#1022](<https://github.com/clusterio/clusterio/pull/1022>)
+- Bumped dependencies, including eslint 10, yargs 18, chalk 6, @types/express 5 and @types/node 24. [#1023](<https://github.com/clusterio/clusterio/pull/1023>)
+- Plugin discovery now traverses dependencies only after confirming the parent package is a Clusterio plugin. [#963](<https://github.com/clusterio/clusterio/pull/963>)
+- Converted the project to using ES Modules. [#984](<https://github.com/clusterio/clusterio/pull/984>)
+- Converted the bundled plugins to entrypoint functions. [#1052](<https://github.com/clusterio/clusterio/pull/1052>)
+- Added `controller.max_subscription_filters` config to limit the number of filters a connection can subscribe with for one event. [#1055](<https://github.com/clusterio/clusterio/pull/1055>)
+- Added `controller.max_send_buffer_size` config to limit how much the controller buffers for a connection that does not acknowledge messages. [#1057](<https://github.com/clusterio/clusterio/pull/1057>)
+- Added links to the ExpCluster and Chat Relay community plugins in the README. [#1062](<https://github.com/clusterio/clusterio/pull/1062>)
+
+### Breaking Changes
+
+- `staticRoot` in the web interface now includes the `static/` prefix. Plugins that fetch assets with `${staticRoot}static/...` should drop the `static/` part. [#980](<https://github.com/clusterio/clusterio/issues/980>)
+- `checkPermission` and the web UI `hasPermission` helpers take `PermissionName`; TypeScript plugins must augment the `Permissions` interface. [#987](<https://github.com/clusterio/clusterio/issues/987>)
+- Replaced `plugins` map with `loadedPlugins` set across core classes (except WebUi). ([#730](<https://github.com/clusterio/clusterio/issues/730>))
+- The `/metrics` endpoint requires a user token with the new `core.controller.metrics` permission. Concurrent scrapes share a single gather from the hosts. [#1009](<https://github.com/clusterio/clusterio/issues/1009>)
+- Config files now have to be explicitly created. Use the `--create-config` flag to get the old behaviour of creating it if missing. [#548](<https://github.com/clusterio/clusterio/issues/548>)
+- Renamed clusterioctl's config-control subcommand to config. [#1039](<https://github.com/clusterio/clusterio/pull/1039>)
+- Renamed clusterioctl's main class from Control to Ctl. [#1039](<https://github.com/clusterio/clusterio/pull/1039>)
+- Renamed clusterioctl's config entries from control.[name] to ctl.[name]. [#1039](<https://github.com/clusterio/clusterio/pull/1039>)
+- Plugin entrypoints must now specify the full filename including the `.js` extension. [#984](<https://github.com/clusterio/clusterio/pull/984>)
+- Renamed the inventory_sync plugin to player_sync, published as `@clusterio/plugin-player_sync`. Config fields, the inventory view permission, the controller database file and save data are migrated on load. Uninstall `@clusterio/plugin-inventory_sync` before installing the new package. [#1072](<https://github.com/clusterio/clusterio/pull/1072>)
+
+### Meta
+
+- Added a `NO_EXTERNAL_TEST` flag to skip tests that use external APIs. [#976](<https://github.com/clusterio/clusterio/pull/976>)
+- Added a CI check that the controller and host stay compatible with the latest published release. [#978](<https://github.com/clusterio/clusterio/pull/978>)
+- Added a Lua lint CI job using emmylua_check. [#979](<https://github.com/clusterio/clusterio/pull/979>)
+- Added a plugin migration guide for 2.0 and documented that minor versions may contain breaking changes for the plugin API. [#1050](<https://github.com/clusterio/clusterio/pull/1050>)
+
+Many thanks to the following for contributing to this release:
+[@bbassie](<https://github.com/bbassie>), [@lntutor](<https://github.com/lntutor>), [@ColumbusLabs](<https://github.com/ColumbusLabs>), [@floze-the-genius](<https://github.com/floze-the-genius>), [@Cooldude2606](<https://github.com/Cooldude2606>), [@solarcloud7](<https://github.com/solarcloud7>), [@Hornwitser](<https://github.com/Hornwitser>), [@ILLISIS](<https://github.com/ILLISIS>), [@Danielv123](<https://github.com/Danielv123>), [@PHIDIAS0303](<https://github.com/PHIDIAS0303>)
+
+## Version 2.0.0-alpha.27
+
+### Features
+
+- Added a cluster overview landing page. [#928](<https://github.com/clusterio/clusterio/issues/928>)
+- Remember the instance console chat/log toggle. [#932](<https://github.com/clusterio/clusterio/pull/932>)
+- Show the public address on the instance details page. [#934](<https://github.com/clusterio/clusterio/issues/934>)
+- Navigation links can now be opened in a new tab. [#929](<https://github.com/clusterio/clusterio/issues/929>)
+- Instances can target a Factorio release channel (e.g. `stable` or `experimental`) as their version, resolved from `factorio.com/api/latest-releases`. [#937](<https://github.com/clusterio/clusterio/pull/937>)
+- The instance console in the Web UI can be resized by dragging its bottom edge, and the chosen height is remembered across page reloads. [#938](<https://github.com/clusterio/clusterio/issues/938>)
+- Tables now remember their sort and filters in the URL. [#927](<https://github.com/clusterio/clusterio/issues/927>)
+- Display Factorio server version in login server list. [#906](<https://github.com/clusterio/clusterio/issues/906>)
+- Add "Connect via Steam" button to login server list. [#915](<https://github.com/clusterio/clusterio/pull/915>)
+
+### Fixes
+
+- Silenced two Ant Design console warnings in the Web UI: the deprecated Modal `destroyOnClose` prop, and a duplicate-value warning from the instance version selector. [#940](<https://github.com/clusterio/clusterio/pull/940>)
+- Surface the mod portal's own error when downloading mods for an unsupported Factorio version. [#941](<https://github.com/clusterio/clusterio/pull/941>)
+- Instances always create their config file on assignment preventing duplicate folder creation. [#945](<https://github.com/clusterio/clusterio/pull/945>)
+
+### Changes
+
+- Reworked the site layout into a fixed sidebar with a top bar. [#924](<https://github.com/clusterio/clusterio/pull/924>)
+- The builtin "recycler" mod is now included correctly as builtin. [#925](<https://github.com/clusterio/clusterio/issues/925>)
+- Mod `info.json` versions (a mod's version and its `factorio_version`) are now parsed leniently, matching how the game reads them, instead of being validated against a fixed list of Factorio versions. [#941](<https://github.com/clusterio/clusterio/pull/941>)
+- SubscriptionFilter now directly extends Set<string>. [#942](<https://github.com/clusterio/clusterio/pull/942>)
+- EventSubscriber now exposes network errors, include permission errors. [#942](<https://github.com/clusterio/clusterio/pull/942>)
+- Quick bar syncing now supports quality filters. [#944](<https://github.com/clusterio/clusterio/pull/944>)
+- Added support for recommended mod dependencies. [#946](<https://github.com/clusterio/clusterio/pull/946>)
+
+### Meta
+
+- Node 20 is no longer officially supported as it went EoL in March 2026. Please update to v22 or v24. [#943](<https://github.com/clusterio/clusterio/pull/943>)
+
+Many thanks to the following for contributing to this release:
+[@bbassie](<https://github.com/bbassie>)
+[@Cooldude2606](<https://github.com/Cooldude2606>)
+
+## Version 2.0.0-alpha.26
+
+### Features
+
+- Added filter state to `EventSubscriber` allowing plugings to more easilly filter events. [#913](<https://github.com/clusterio/clusterio/pull/913>)
+- Added `replace` subscription action allowing filter state to be fully replaced with a single request. [#913](<https://github.com/clusterio/clusterio/pull/913>)
+- Added `ValueSubscriber` and `MapSubscriber` as subclasses of `EventSubscriber`. [#913](<https://github.com/clusterio/clusterio/pull/913>)
+- Added changelog viewer accessible from the version number in the web interface. [#907](<https://github.com/clusterio/clusterio/issues/907>)
+- Added about popup to user menu containing support links, build, clusterio, and debug info. [#914](<https://github.com/clusterio/clusterio/pull/914>)
+- Added user status filtering (admin, whitelisted, banned) to the users table. [#905](<https://github.com/clusterio/clusterio/issues/905>)
+- Added instance selector to users page to scope user stats by instance. [#905](<https://github.com/clusterio/clusterio/issues/905>)
+
+### Fixes
+
+- Online user table on instance page now correctly defaults to online only filter. [#909](<https://github.com/clusterio/clusterio/pull/909>)
+- Fixed popup not opening when pressing kill within the instance control button. [#859](<https://github.com/clusterio/clusterio/issues/859>)
+- Fix division by zero in CPU usage calculation. [#916](<https://github.com/clusterio/clusterio/issues/916>)
+- Fixed permissions list not including `grantByDefault` in the json representation. [#913](<https://github.com/clusterio/clusterio/pull/913>)
+- Fixed subscription resources being `synced = false` if the remote data was empty. [#913](<https://github.com/clusterio/clusterio/pull/913>)
+- Fix incorrect use of `path.parse` within create template for plugins. [#919](<https://github.com/clusterio/clusterio/pull/919>)
+- Fixed active filter icon behaviour in user search using empty string. [#917](<https://github.com/clusterio/clusterio/pull/917>)
+
+### Changes
+
+- Player auth now uses a scroll pane for listing instance names. [#909](<https://github.com/clusterio/clusterio/pull/909>)
+- `subscriptionUpdate` now fires for all subscription requests rather than just added subscriptions. [#913](<https://github.com/clusterio/clusterio/pull/913>)
+- Unified instance and global user table columns for consistent behaviour. [#917](<https://github.com/clusterio/clusterio/pull/917>)
+- Improved loading states for tables and inputs using synced state. [#917](<https://github.com/clusterio/clusterio/pull/917>)
+- Refactored username rendering into a reusable component. [#917](<https://github.com/clusterio/clusterio/pull/917>)
+
+### Breaking Changes
+
+- Renamed `lib.Address.index` to `requestIndex` and added `addressIndex`. [#913](<https://github.com/clusterio/clusterio/pull/913>)
+- `EventSubscriber` no longer includes a values map, use `MapSubscriber` instead. [#913](<https://github.com/clusterio/clusterio/pull/913>)
+
+### Meta
+
+- Version dependencies now use `^` which enables updates to be applied one package at a time. [#803](<https://github.com/clusterio/clusterio/issues/803>)
+- Updated change log creation to include new lines and user contributions. [#909](<https://github.com/clusterio/clusterio/pull/909>)
+
+Many thanks to the following for contributing to this release:
+[@Cooldude2606](<https://github.com/Cooldude2606>)
+
+## Version 2.0.0-alpha.25
+
+### Features
+
+- Added double interrupt logic to ctl to force immediate exit. [#887](<https://github.com/clusterio/clusterio/issues/887>)
+- Allow selection of factorio versions not listed on the Wube website for instances and mod packs. [#867](<https://github.com/clusterio/clusterio/issues/867>)
+
+### Fixes
+
+- Fix the webui being unable to set host config values and that no error was displayed. [#891](<https://github.com/clusterio/clusterio/issues/891>)
+- Fix instance config not updating on changes being applied. [#901](<https://github.com/clusterio/clusterio/pull/901>)
+- Incorrect acccessing of player inventory during crafting queue serialisation when in remote view. [#892](<https://github.com/clusterio/clusterio/issues/892>)
+- Use physical location and controller for syncing player to prevent teleporting with remote view. [#894](<https://github.com/clusterio/clusterio/pull/894>)
+- Fixed player exiting space platform hub on sync and other remote view edge cases.  [#894](<https://github.com/clusterio/clusterio/pull/894>)
+
+### Changes
+
+- Config validation errors are no longer logged when raised during an request handler. [#888](<https://github.com/clusterio/clusterio/issues/888>)
+- Updated role permission editor to use grouped layout with search and improved formatting. [#902](<https://github.com/clusterio/clusterio/pull/902>)
+
+### Breaking Changes
+
+- Removed obsolete functionality to download headless server in the installer. [#890](<https://github.com/clusterio/clusterio/pull/890>)
+
+Many thanks to the following for contributing to this release:  
+[@Cooldude2606](<https://github.com/Cooldude2606>)
+[@Daniel](<https://github.com/Daniel>)
+[@Hornwitser](<https://github.com/Hornwitser>)
+
+## Version 2.0.0-alpha.24
+
+### Features
+
+- Added `FactorioIcon` component for showing icons from the game in the web UI. [#875](https://github.com/clusterio/clusterio/pull/875)
+- Added `useDefaultModPack` hook to the web UI. [#875](https://github.com/clusterio/clusterio/pull/875)
+- Added types for the exported metadata for mod packs. [#526](https://github.com/clusterio/clusterio/issues/526)
+- Added config value validation beyond simple type checks. [#856](https://github.com/clusterio/clusterio/pull/856)
+- Added config staging to allow setting many values at once. [#856](https://github.com/clusterio/clusterio/pull/856)
+- Added a warning when attempting to set player autosave slots lower than autosave slots. [#855](https://github.com/clusterio/clusterio/issues/855)
+- Added `controller.authSecret` as the type of config field `controller.auth_secret` was inconsistent. [#856](https://github.com/clusterio/clusterio/pull/856)
+- Added support for the `node:` prefix in import statements in web UI code. [#881](https://github.com/clusterio/clusterio/pull/881)
+- Added config validation to load plugin to error when save patching or script commands are disabled [#884](https://github.com/clusterio/clusterio/issues/884)
+
+### Fixes
+
+- Fixed host printing a deprecation warning on startup. [#855](https://github.com/clusterio/clusterio/issues/855)
+- Fixed exported prototype metadata missing localised_name. [#875](https://github.com/clusterio/clusterio/pull/875)
+- Fixed headless download option in installer failing with `TypeError: callback is not a function`. [#860](https://github.com/clusterio/clusterio/issues/860)
+- Fixed controller crashing if a host attempted to download a mod that had been deleted from the controller's filesystem while the controller was running. [#860](https://github.com/clusterio/clusterio/issues/860)
+
+### Changes
+
+- Moved `/icon-reference` to `/mods/mod-packs/:id/icon-reference` and linked it from the mod pack page. [#875](https://github.com/clusterio/clusterio/pull/875)
+- Made the `useAccount`, `useModPacks`, `useMods`, `useRoles`, `useSaves`, `useSystems`, `useUsers` and related hooks in the web UI available to plugins. [#875](https://github.com/clusterio/clusterio/pull/875)
+- Exported prototypes are now based on the `defines.prototypes` mapping from the game. [#875](https://github.com/clusterio/clusterio/pull/875)
+- Removed usage of fs-extra. [#860](https://github.com/clusterio/clusterio/issues/860)
+
+### Breaking Changes
+
+- Removed `useExportManifest` from the web UI. Use `.exportManifest` on a mod pack from one of the `useModPack` hooks instead. [#875](https://github.com/clusterio/clusterio/pull/875)
+- Replaced the 8 `useTypeMetadata` hooks in the web UI such as `useItemMetadata` with `useExportPrototypeMetadata`. [#875](https://github.com/clusterio/clusterio/pull/875)
+- `.item-name` css classes are no longer created in the web UI, and will not render icons from the game. Use the `FactorioIcon` component instead and pass it a prototype from `useExportPrototypeMetadata`. [#875](https://github.com/clusterio/clusterio/pull/875)
+- Renamed `useLocale` hook in web UI to `useExportLocale` which now requires the mod pack to load the exported locale from as an argument. [#875](https://github.com/clusterio/clusterio/pull/875)
+- Fluids are no longer merged with items in the exported prototype metadata for mod packs. [#875](https://github.com/clusterio/clusterio/pull/875)
+
+### Meta
+
+- Changelog entries are now parsed with a script from pull request descriptions. [#871](https://github.com/clusterio/clusterio/pull/871)
+
+Many thanks to the following for contributing to this release:  
+[@Cooldude2606](https://github.com/Cooldude2606)
+[@Hornwitser](https://github.com/Hornwitser)
+
+## Version 2.0.0-alpha.23
+
+### Major Features
+
+- Added automatic headless download and update on linux. [#330](https://github.com/clusterio/clusterio/issues/330)
+- Added recipe notification sync to inventory sync. [#506](https://github.com/clusterio/clusterio/issues/506)
+
+### Features
+
+- Added config lock files to prevent process duplication. [#815](https://github.com/clusterio/clusterio/issues/815)
+- Added process and system start times to system metrics. [#826](https://github.com/clusterio/clusterio/issues/826)
+- Added icons to status tags for host and instances. [#827](https://github.com/clusterio/clusterio/issues/827)
+- Extended export-data to produce icons for recipes, signals, technologies, planets, qualities and entities. [#838](https://github.com/clusterio/clusterio/pull/838)
+- Added Icon Reference page to web interface at `/icon-reference` for browsing all exported icons. [#838](https://github.com/clusterio/clusterio/pull/838)
+- Added visual flash to RCON result box to confirm command execution, even when the output is identical to the previous result. [#793](https://github.com/clusterio/clusterio/issues/793)
+
+### Changes
+
+- Login screen now displays the cluster name. [#818](https://github.com/clusterio/clusterio/issues/818)
+- Instance versions can now be set using Major.Minor without specifying a patch version. [#820](https://github.com/clusterio/clusterio/issues/820)
+- Versions for factorio and mod packs can now be selected using a drop down menu. [#820](https://github.com/clusterio/clusterio/issues/820)
+- The controller will now refuse to start if no users were loaded from file. [#814](https://github.com/clusterio/clusterio/issues/814)
+- Improved wording and display of the generate host token modal. [#828](https://github.com/clusterio/clusterio/issues/828)
+- Installations where multiple conflicting clusterio/lib packages have been installed will now fail with an error [#863](https://github.com/clusterio/clusterio/issues/863).
+- Export completion now logs per-category icon counts. [#838](https://github.com/clusterio/clusterio/pull/838)
+
+### Fixes
+
+- Removed debug log statement from equipment grid serialization. [#807](https://github.com/clusterio/clusterio/pull/807)
+- Fix that the documentation had a dead link to details of the message passing protocol [#812](https://github.com/clusterio/clusterio/issues/812)
+- Fixed case where achievements were not disabled. [#817](https://github.com/clusterio/clusterio/pull/817)
+- Fix headless download on linux install. [#816](https://github.com/clusterio/clusterio/issues/816)
+- Fix option `--no-download-headless` being ignored. [#816](https://github.com/clusterio/clusterio/issues/816)
+- Fixed action buttons overflowing on narrow screens across the web interface. [#810](https://github.com/clusterio/clusterio/issues/810)
+- Fixed player logistics failing to load on servers without unlocked logistics networks. [#806](https://github.com/clusterio/clusterio/issues/806)
+- Fixed mod dependency parser breaking with inconsistent spaces. [#834](https://github.com/clusterio/clusterio/issues/834)
+- No longer attempts to sync inventory in single player. [#835](https://github.com/clusterio/clusterio/issues/835)
+- Fixed tests failing when the configured factorio_directory contains stuff other than Factorio installs [#540](https://github.com/clusterio/clusterio/issues/540).
+- Always create a whitelist file so it can be watched for changes. [#865](https://github.com/clusterio/clusterio/issues/865)
+- Added missing await statements which could cause an instance to start with an outdated admin/ban/whitelist. [#869](https://github.com/clusterio/clusterio/issues/869)
+- Fixed metrics breaking when labels contain comma or equal signs [#861](https://github.com/clusterio/clusterio/issues/861)
+- Fixed Host page show repeated errors when viewing an offline local host [#848](https://github.com/clusterio/clusterio/issues/848)
+- Fixed bad mod paths in icon specifications crashing the export. [#841](https://github.com/clusterio/clusterio/issues/841)
+- Fixed prototypes with no icon data causing errors during export. [#841](https://github.com/clusterio/clusterio/issues/841)
+
+### Breaking Changes
+
+- Custom permission methods should use `IUser` rather than `IControllerUser` [#837](https://github.com/clusterio/clusterio/pull/837)
+- `controller.userManager` has been refactored, see PR for details. [#837](https://github.com/clusterio/clusterio/pull/837)
+- `controller.instances` has been refactored, see PR for details. [#837](https://github.com/clusterio/clusterio/pull/837)
+- `User/Instance/HostInfo` renamed to `User/Instance/HostRecord` [#837](https://github.com/clusterio/clusterio/pull/837)
+- Removed `host.tls_ca` and `control.tls_ca` config options, see [section on self signed certificates](https://github.com/clusterio/clusterio/blob/master/docs/setting-up-tls.md#creating-and-using-a-self-signed-certificate) for the replacement for this option [#857](https://github.com/clusterio/clusterio/issues/857)
+
+Many thanks to the following for contributing to this release:  
+[@Cooldude2606](https://github.com/Cooldude2606)
+[@Daniel](https://github.com/Danielv123)
+[@Double](https://github.com/DoubleThoughtTheProgrammer)
+[@Hornwitser](https://github.com/Hornwitser)
+[@Ryan Walker](https://github.com/solarcloud7)
+
 ## Version 2.0.0-alpha.22
 
 ### Major Features
@@ -327,7 +730,7 @@ Many thanks to the following for contributing to this release:
 ## Version 2.0.0-alpha.14
 
 This release does not retain backwards compatibility with 2.0.0-alpha.13 meaning all parts of the cluster needs to updated at the same time.
-See the [migration guide](/docs/migrating-from-2.0.0-alpha.13.md) for how to update.
+See the [migration guide](https://github.com/clusterio/clusterio/blob/e0755cb4ee7bce0068c844ab6271da481a843e62/docs/migrating-from-2.0.0-alpha.13.md) for how to update.
 
 ### Major Features
 

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:20 as subspace_storage_builder
+FROM node:24 AS subspace_storage_builder
 RUN apt update && apt install -y git
 WORKDIR /
 RUN git clone https://github.com/clusterio/subspace_storage.git
@@ -6,7 +6,7 @@ WORKDIR /subspace_storage
 RUN npm install \
 && node build
 
-FROM node:20 as clusterio_builder
+FROM node:24 AS clusterio_builder
 RUN apt update \
 && apt install -y wget \
 && mkdir /clusterio

README.md

@@ -10,9 +10,11 @@ Discord for development/support/play: https://discord.gg/5XuDkje
 
 ## Important notice
 
-Clusterio 2.0 is still in alpha, however the previous stable has been abandoned and is no longer supported.
-Despite being alpha it's reasonably stable now and there's no major breakages expected before a stable release of 2.0.
-If you are starting a new cluster, it's highly recommended to use the 2.0 alpha.
+Clusterio 2.0 is the current stable release and requires Node.js 22 or newer.
+For new installations, use the latest Node.js LTS release (see [Installation](#installation)).
+The previous stable series is no longer supported.
+If you are upgrading from a 2.0 alpha, review the [changelog](CHANGELOG.md) before upgrading.
+Plugin authors should also follow the [2.0 migration guide](docs/devs/plugin-migration-to-2.0.md).
 
 
 ### Ways to support me/the project:
@@ -40,7 +42,7 @@ If you are starting a new cluster, it's highly recommended to use the 2.0 alpha.
 * [Setting up remote hosts](#setting-up-remote-hosts)
 * [Setting up clusterioctl](#setting-up-clusterioctl)
 * [Known issues](#known-issues)
-* [Common problems](#Common-problems)
+* [Common problems](#common-problems)
 
 
 ## Introduction
@@ -71,11 +73,11 @@ Plugins add functionality to Factorio servers, Clusterio itself or both.
 These are the plugins supported and maintained by the Clusterio developers:
 
 - [Global Chat](/plugins/global_chat/README.md): share the in-game chat between servers.
-- [Research Sync](/plugins/research_sync/README.md): synchronize research progress and technologies unlocked between servers.
+- [Research Sync](/plugins/research_sync/README.md): synchronize research progress and technologies unlocked and the research queue between servers.
 - [Statistics Exporter](/plugins/statistics_exporter/README.md): collect in-game statistics from all the servers and makes it available to the Prometheus endpoint on the controller.
 - [Subspace Storage](https://github.com/clusterio/subspace_storage): Provide shared storage that can transport items between servers via teleport chests.
 - [Player Auth](/plugins/player_auth/README.md): Provides authentication to the cluster via logging into a Factorio server.
-- [Inventory Sync](/plugins/inventory_sync/README.md): Synchronizes your inventory between servers.
+- [Player Sync](/plugins/player_sync/README.md): Synchronizes your inventory and player settings between servers.
 
 There's also plugins developed and maintained by the community:
 
@@ -83,15 +85,24 @@ There's also plugins developed and maintained by the community:
   By Hornwitser.
 - [Server Select](https://github.com/Hornwitser/server_select/tree/clusterio-2.0) (@hornwitser/server_select): In-game GUI for connecting to other servers in the cluster.
   Originally by Godmave, ported to 2.0 by Hornwitser.
+- [ExpCluster](https://github.com/explosivegaming/ExpCluster) (@expcluster/*): A collection of plugins and scenario features including role and group syncing, moderation tools, quality of life additions, and discord account linking.
+  See repo readme for plugin breakdown. Maintained by Cooldude2606.
+- [Chat Relay](https://github.com/PHIDIAS0303/chat_relay) (@PHIDIAS0303/chat_relay): Chat relay of Discord and Factorio, seperate channel.
+
+The installer offers the six plugins maintained in this repository.
+Community plugins are versioned and released independently of Clusterio; check their compatibility before installing them manually.
 
 Want to make your own plugin?
 Check out the documentation on [Writing Plugins](/docs/writing-plugins.md) for where to start.
+If you have a plugin written for an earlier 2.0 alpha, see [Migrating Plugins to 2.0](/docs/devs/plugin-migration-to-2.0.md).
+Note that from 2.0 onwards minor versions of Clusterio may contain breaking changes for plugins, while breaking changes for users running a cluster are held back for major versions.
 
 
 ## Installation
 
-Clusterio runs on all LTS version of NodeJS, it is distributed via npm and comes with a guided install script.
-If you already have a recent Node.js installed, you can set it up in a new directory with:
+Install the latest [Node.js LTS release](https://nodejs.org/en/download), which is recommended for new Clusterio installations.
+Clusterio is distributed via npm and comes with a guided install script.
+If you already have a supported Node.js version installed, you can set it up in a new directory with:
 
     npm init "@clusterio"
 
@@ -100,12 +111,14 @@ Check out all our of decisions for [node, factorio, and operation support](/docs
 
 ### Ubuntu setup
 
-1.  Install Node.js v18 or higher.
-    Note the version of Node.js provided by the Ubuntu/debian repos are too old and you will have to use the nodesource PPA
+1.  Install the latest Node.js LTS release using the NodeSource repository for Ubuntu/Debian.
+    The distribution's default repository may provide an older version.
 
-        curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash - &&\
+        curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo -E bash - &&\
         sudo apt-get install -y nodejs
 
+    Verify the installation with `node --version` and `npm --version`.
+
 2.  Log in as the user you wish to install Clusterio as (do not use root), and then create a new directory and run the Clusterio installer:
 
         mkdir clusterio
@@ -137,7 +150,7 @@ Your instances (save files etc) will be stored there.
 
 ### Windows setup
 
-1.  Download and install the latest LTS release from http://nodejs.org.
+1.  Download and install the latest [Node.js LTS release](https://nodejs.org/en/download).
 
 2.  Create a new empty directory for the installation and navigate into it.
     Open a PowerShell window in this new directory by Shift+Right clicking inside it and choosing "Open PowerShell window here" and then run the following command.
@@ -151,7 +164,8 @@ Your instances (save files etc) will be stored there.
 
 ### MacOS Setup
 
-1.  Install the latest Node.js LTS release from http://nodejs.org or use brew (`brew install node`).
+1.  Install the latest [Node.js LTS release](https://nodejs.org/en/download).
+    If you use [nvm](https://github.com/nvm-sh/nvm#installing-and-updating), run `nvm install --lts`.
 
 2.  Open Terminal or Command prompt in the directory you want to install to and run the following commands.
 
@@ -167,16 +181,12 @@ Your instances (save files etc) will be stored there.
 ### Installing Plugins
 
 For well-known plugins you can select them during installation and no further steps are necessary to make them work.
-Installing plugins that are not offered by the installer consists of two steps.
-First install the package the plugin is provided by via npm, for example
+Plugins that are not offered by the installer can be installed by the name of the npm package that provides them, for example
 
-    npm install @clusterio/plugin-subspace_storage
+    npx clusteriocontroller plugin install @clusterio/plugin-subspace_storage
 
-Then tell clusterio that this plugin exists by adding it as a plugin.
-
-    npx clusteriocontroller plugin add @clusterio/plugin-subspace_storage
-
-This adds it to the default `plugin-list.json` file which in the shared folder setup is loaded by controller, host and ctl.
+This installs the package with npm and adds it to the default `plugin-list.json` file which in the shared folder setup is loaded by controller, host and ctl.
+The command must be run from the directory clusterio was installed in and will refuse to run anywhere else.
 If you have hosts or ctl installed on separate computers (or directories) then you need to repeat the plugin install process for all of them.
 The clusteriocontroller, clusteriohost and clusterioctl commands has the plugin sub-command so you do not need to install clusteriocontroller to add plugins, instead use the clusterio command you have available.
 
@@ -209,7 +219,11 @@ See the [readme for @clusterio/controller](/packages/controller/README.md) for m
 
 ## Managing Factorio mods
 
-Mods in clusterio are managed as parts of modpacks. There is currently no mod portal integration, so you first need to navigate to the mods section of the web UI and upload your mods. You can then create a modpack from the uploaded mods by navigating to the mods page, hitting `create`. Once you have a modpack, you can assign it to an instance under Instance config -> Factorio -> Mod pack. You can also set a default modpack for new instances in the controller settings.
+Mods in Clusterio are managed as parts of mod packs.
+On the Mods page of the web interface, use **Search** to browse the Factorio Mod Portal and download mods to the controller, or upload mod zip files directly.
+Mod Portal downloads require the controller's [Factorio account credentials](docs/configuration.md#controllerfactorio_username) to be configured.
+Use **Create** in the Mod Packs section to create a mod pack, then add the mods you want to use.
+Assign the mod pack to an instance under Instance config -> Factorio -> Mod pack, or set a default mod pack for new instances in the controller settings.
 
 ![Select mod pack for instance](docs/assets/config_select_mod_pack.png)
 
@@ -225,7 +239,9 @@ Once this is done, the mod settings will show up under the modpack configuration
 ## Setting up shared storage
 
 The chests teleporting items to and from the shared storage on the controller has been moved into the Subspace Storage mod and plugin.
-To get this to work you will need to install the Subspace Storage plugin and copy the [Subspace Storage mod](https://mods.factorio.com/mod/subspace_storage) and the [Clusterio Lib mod](https://mods.factorio.com/mod/clusterio_lib) into the `sharedMods` folder on each host installation.
+To get this to work, install the Subspace Storage plugin on the controller and hosts using the [plugin installation instructions](#installing-plugins).
+Download or upload the [Subspace Storage mod](https://mods.factorio.com/mod/subspace_storage) and the [Clusterio Lib mod](https://mods.factorio.com/mod/clusterio_lib) to the controller, add them to a mod pack, and assign it to each participating instance as described in [Managing Factorio mods](#managing-factorio-mods).
+Hosts fetch the mods from the controller and synchronize each instance's mods folder with its assigned mod pack when the instance starts.
 
 Do not install the [Clusterio mod](https://mods.factorio.com/mod/clusterio), this was for the old 1.2.x version of Clusterio and is not compatible with Clusterio 2.0.
 
@@ -235,6 +251,7 @@ Do not install the [Clusterio mod](https://mods.factorio.com/mod/clusterio), thi
 After completing the installation and creating your admin user, start up the controller and at least one host separately.
 The installer provides the `run-controller` and `run-host` scripts to make this simple.
 Once the controller process is running you can log into the web interface which is hosted by default on http://localhost:8080/ (adjust the port number if you changed it), use the admin authentication token provided from the installation to log in.
+The first time a host starts it prints a link for approving it, open the link and click Approve.
 
 The basics of setting up a Factorio server from the web interface is to create an instance, assign it to a host and then click start. You can also use the "Connect via Steam" button to launch Factorio directly and connect to the server using Steam's protocol handler.
 
@@ -256,9 +273,23 @@ If you have copied these files over to `/etc/systemd/system/` then you can start
 
 ## Setting up remote hosts
 
-Run the installer as described in the installation section and choose "Host only" as the operating mode to install, it'll ask for a controller URL and an authentication token.
-The URL is the same as what is needed to connect to the web interface, and the authentication token can be generated on the Hosts page in the web interface.
-Once you start up the host it should show up in the Hosts list and be available for assigning and running instances on.
+Run the installer as described in the installation section and choose "Host only" as the operating mode to install, it'll ask for a name for the host and a controller URL.
+The URL is the same as what is needed to connect to the web interface.
+Then start the host, the first time it starts it prints a code and waits for the host to be approved:
+
+    Waiting for approval of "my-host" with code ABC-DEF, open this link to approve it:
+    https://example.com/hosts?approve=ABC-DEF
+    Or run: npx clusterioctl host approve ABC-DEF
+
+Open the link to approve it in the web interface, where you can also change its name, or click Add host on the Hosts page and approve the request with the same code, or run `npx clusterioctl host approve <code>`.
+The host then saves its connection details and starts up, it should show up in the Hosts list and be available for assigning and running instances on.
+Only approve a request if its code matches the one shown by the host, approving gives the host full access to the cluster.
+Approving requires the `core.host.approve` permission, which the Cluster Admin role has.
+If you have that permission you can skip the wait by starting the host with `npx clusteriohost run --user-token <token>` and your own authentication token, it is only used to approve the host and is not saved.
+
+To remove a host from the cluster, click Revoke host access on the page for the host in the web interface, or run `npx clusterioctl host revoke <host>`.
+This disconnects the host, its instances become unassigned and its saved connection details stop working.
+To add the computer back to the cluster start the host again, it asks for approval again.
 
 
 ## Setting up clusterioctl
@@ -273,20 +304,13 @@ If you want to use a different user for the command line interface, you can gene
 
 ## Known Issues
 
-- When the `server_select` plugin is installed you may see `[error] Unhandled event server_select:UpdateInstancesEvent` logged when starting an instance.
-  This should be ignored as it does not indicate an error occured.
+- `@hornwitser/server_select@2.0.1` fails to load with Clusterio 2.0 because its entrypoints omit the required `.js` extension.
+  `@hornwitser/discord_bridge@0.2.5` is not automatically discovered because it lacks the `clusterio-plugin` keyword.
+  The Clusterio 2.0.2 installer still offers these versions; leave them unchecked until compatible plugin releases are available.
+  If already installed, stop the controller and host, run `npm uninstall @hornwitser/server_select @hornwitser/discord_bridge` in each affected installation directory, and restart them to continue with the core plugins.
+  See [#1102](https://github.com/clusterio/clusterio/issues/1102).
 - After updating Factorio you may get the error `Error: Expected empty response but got "Cannot execute command. Error: [string "clusterio_private.update_instance(..."]:1: attempt to index global 'clusterio_private' (a nil value)?` on instance start.
   This is due to Factorio applying a migration replacing the patched content of the save with the original scenario, attempting to start the instance again should resolve the issue.
-- In the mod pack view of the web interface the "base" mod is displayed with an error complaining about the mod being missing from the controller storage.
-  This is due to the "base" mod currently not being connectly handled as a built-in mod to Factorio in the web interface, this error message should be ignored.
-- After migrating from Alpha 13 to Alpha 14 running an instance data export fails with the error `Upload failed: 401 Unauthorized` due to the host token being issued to a slave.
-  To workaround this find the id of the host in the host config and generate a new host token with the same id.
-  Stop the host and replace the value of the `host.controller_token` field in `config-host.json` with the new host token before starting it up again.
-- After migrating from Alpha 13 to Alpha 14 you get kicked out from the web interface due to the master to controller rename.
-  If you don't have the authentication token readily available you can manually migrate the token by opening the Inspect/Developer Tools on the page and running the following piece of JavaScript in the Console:
-  ```
-  localStorage.controller_token = localStorage.master_token
-  ```
 
 
 ## Common problems

clean.js

@@ -6,12 +6,11 @@
  * clean-all: Removes all build, test, and execution artifacts. Including cluster config and logs!
  */
 
-"use strict";
-const path = require("path");
-const fs = require("fs-extra");
-const yargs = require("yargs");
+import path from "node:path";
+import fs from "node:fs/promises";
+import yargs from "yargs";
 
-const npmPackage = require("./package.json");
+import npmPackage from "./package.json" with { type: "json" };
 const workspaces = npmPackage.workspaces
 	.map(p => p.slice(0, -2))
 	.filter(p => !p.includes("external_plugins"));
@@ -24,13 +23,15 @@ let DRY = false;
  * @param {string} filePath The path to remove.
  */
 async function tryRemove(filePath) {
-	if (await fs.exists(filePath)) {
-		// eslint-disable-next-line no-console
+	try {
+		await fs.access(filePath);
 		console.log(filePath);
+	} catch {
+		return;
 	}
 
 	if (!DRY) {
-		await fs.remove(filePath);
+		await fs.rm(filePath, { force: true, recursive: true, maxRetries: 10 });
 	}
 }
 
@@ -48,7 +49,7 @@ async function removeBuildArtifacts() {
 				tryRemove(path.join(basePath, packageName, "dist"))
 			);
 			tasks.push(
-				tryRemove(path.join(basePath, packageName, "node_modules", ".cache"))
+				tryRemove(path.join(basePath, packageName, "node_modules", ".vite"))
 			);
 		}
 	}
@@ -73,7 +74,7 @@ async function removeTestArtifacts() {
 async function removeExecutionArtifacts() {
 	const artifacts = [
 		"database", "instances", "logs", "mods",
-		"config-control.json", "config-controller.json", "config-host.json",
+		"config-ctl.json", "config-controller.json", "config-host.json",
 		"FactorioAdminToken.txt", "plugin-list.json",
 	];
 
@@ -104,7 +105,7 @@ async function main() {
 			removeBuildArtifacts();
 			removeTestArtifacts();
 		})
-		.command("fast", "Remove all build artifacts", () => {}, argv => {
+		.command("$0", "Remove all build artifacts", () => {}, argv => {
 			DRY = argv.dry;
 			removeBuildArtifacts();
 		})
@@ -114,6 +115,6 @@ async function main() {
 }
 
 // Run main if started from command line
-if (module === require.main) {
+if (import.meta.main) {
 	main();
 }

docs/assets/clusterio_2.0_block_diagram.drawio

@@ -0,0 +1 @@
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docs/assets/clusterio_2.0_block_diagram.svg

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+  <desc id="diagram-description">A controller and two hosts run across two physical servers. Each host manages three Factorio servers. The hosts and web or command-line clients connect to the controller over WebSocket.</desc>
+  <title id="diagram-title">Clusterio 2.0 system architecture</title>
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docs/communication.md

@@ -1,36 +1,58 @@
 # Communication Layer
 
-<sub>This document describes the communication layer in Clusterio and unless you're developing Clusterio it's probably not going to be very useful for you.</sub>
-
-Communication is facilitated by the lib/link library and is based on three core abstractions: links, connectors and messages.
-Links represents one side of a two way communication pipe, connectors deal with connecting and establishing communication, and messages are the content sent over the link.
+Clusterio uses links, connectors, and message classes to communicate between controllers, hosts, instances, and control clients.
+A link sends and receives messages through a connector, while message classes define the requests and events that can be exchanged.
+See the [system overview](how-it-works.md#system-overview) for a diagram of the processes and their connections, and the [protocol reference](devs/protocol.md) for wire formats and session flow.
 
 
-## Link
+## Links and routing
 
-The Link class represents one side of a two way communication channel where the actual communication is done by a connector associated with the link.
-The link also knows what the endpoint types it's connected to are via the source and target attributes.
+[Link](../packages/lib/src/link/link.ts) handles request/response matching, event dispatch, message registration, and routing through an attached router.
+Its connector identifies the local and remote endpoints through `connector.src` and `connector.dst`, both `Address` objects.
 
-The endpoint types currently implemented are controller, host, instance, and control.
-Although host and instances run in the same Node.js program they use virtual links to communicate between them in order to simplify the communication architecture.
+The controller's `WsServer` stores one link for each host or control connection.
+On a host, the `Host` object is a link to the controller, and each `Instance` is linked to a corresponding `InstanceConnection` stored on the host.
+The command-line client's `Ctl` object and the web interface's `Control` object each act as a link to the controller.
 
-Upon creation the link will register with the connector in order to receive and process messages from it.
-The messages received are validated using the validator registered for the type of the message.
-A message for which there is no validator for is considered an error.
+Requests can pass through several links before reaching their destination.
+Each receiving link checks the message name, allowed endpoint types, and source address before routing it.
+The controller checks the user's permissions before validating the message data; permission callbacks therefore receive untrusted data.
+See [message permissions](writing-plugins.md#static-permission).
+
+At the destination, the registered schema validates the payload and `fromJSON` restores the message before its handler runs.
+
+Routing can perform work before the destination handler runs.
+In particular, the [host router](../packages/host/src/Host.ts) can start or wake an instance for messages marked as instance-starting.
 
 
-## Connector
+## Connectors and sessions
 
-The connector used with a link is responsible for establishing and/or maintain the connection that messages are sent over.
-Reconnect logic is expected to be implemented in the connector, though this has not yet been done.
+[Connectors](../packages/lib/src/link/connectors.ts) transport messages, assign sequence numbers, and deliver incoming messages to links.
+WebSocket connectors connect hosts and control clients to the controller and validate incoming message structures, including their type and addresses.
+Hosts and instances share a Node.js process and communicate in memory through paired `VirtualConnector` objects.
 
-There's also the virtual connector which lets two links in the same program be connected to each other without having to establish a network connection.
+The protocol reference describes [connection and recovery behavior](devs/protocol.md#connection-flow), [connector states and events](devs/protocol.md#connector-flow), and [graceful disconnects](devs/protocol.md#graceful-disconnect).
+For handling these events in a plugin, including queueing work and preparing for disconnection, see [connection handling](writing-plugins.md#handling-connection-events).
 
 
-## Message
+## Message definitions and registration
 
-There's two types of messages currently implemented apart from the Link builtin close message and that's Request and Event.
-The builtin messages are defined in [packages/lib/src/link/messages.ts](/packages/lib/src/link/messages.ts) and are attached to links via the attachAllMessages function, which is usally called in the Link subclass constructor.
+Core request and event classes live under [packages/lib/src/data/](../packages/lib/src/data/).
+Their static `type`, `src`, and `dst` properties specify the message type and allowed endpoint types, while their schema and permission fields define the payload and access rules.
+Plugin classes also supply a `plugin` name.
 
-The messages define which links they are valid on and only attaches handlers for those links.
-There's also a forwarding mechanism for when a request or event is to be forwarded another hop.
+`Link.register` registers request and event classes and compiles their payload validators.
+Core classes are registered by the link module; `registerPluginMessages` registers each plugin's `messages` array.
+It also registers the plugin's `errors` array with `Link.registerError`, so an error thrown by a request handler is rejected on the requester as the same class.
+Incoming messages invoke handlers attached with `link.handle(MessageClass, handler)`.
+Plugins attach these handlers from their entrypoint functions rather than relying on method-name conventions.
+
+Send a message with `link.sendTo(destination, new MessageClass(...))`.
+Requests return a promise for the response; events do not return a handler result.
+Use broadcast destinations only for events.
+When using a request's source as a later event destination, remove its request ID with `Address.withoutRequestId()`.
+See [writing plugins](writing-plugins.md#defining-link-messages) for a complete example.
+
+When changing a wire message structure in [messages_core.ts](../packages/lib/src/data/messages_core.ts), rebuild the packages with `pnpm -r run prepare` to regenerate the standalone validator.
+When changing a request or event class, keep serialization, allowed endpoints, permission checks, registration, and handlers consistent.
+The [contributor guide](contributing.md#checking-your-code-for-errors) explains how to run focused tests.

docs/config-system.md

@@ -3,18 +3,18 @@
 <sub>This document describes the implementation and inner working of the configuration system in Clusterio, and unless you're developing Clusterio it's probably not going to be very useful for you.</sub>
 
 Clusterio uses a field based configuration system to manage settings for the controller, instances, hosts, and the clusterioctl utility.
-Plugins can add their own config fields for the controller and instances configs.
+Plugins can add their own config fields for the controller, host, instance, and ctl configs.
 The fields are defined early in the startup, and fields for disabled plugins will still be created.
 
-The built-in config fields are defined in [packages/lib/src/config/definitions.ts](/packages/lib/src/config/definitions.ts) while plugins can add their own config field definitions to the `controllerConfigFields` and `instanceConfigFields` properties of the `plugin` export.
-A `<plugin_name>.load_plugin` field is automatically created for each plugin and it's used to enable/disable the loading plugins on startup.
+The built-in config fields are defined in [packages/lib/src/config/definitions.ts](/packages/lib/src/config/definitions.ts) while plugins add fields through `controllerConfigFields`, `hostConfigFields`, `instanceConfigFields`, and `ctlConfigFields` on the `plugin` export.
+Controller, host, and instance configs also receive `<plugin_name>.load_plugin` to enable/disable loading on startup and a hidden `<plugin_name>.version` for migrations.
 
 
-## Defing Fields
+## Defining Fields
 
 Fields are defined as POJS object properties where the name of the property correspond to the name of the configuration field.
 The property name is the primary way the field is accessed both in code and on the command line, as such it should follow the lower\_case\_underscore style and consist of a group name and a field name separated by a dot.
-For plugins the group name is the name of the plugin, e.g., the `level` field of the `foo_frobber` plugin would be named `foo_frobber.lavel`.
+For plugins the group name is the name of the plugin, e.g., the `level` field of the `foo_frobber` plugin would be named `foo_frobber.level`.
 
 **access**:
     The locations this config field can be read and modified from.
@@ -44,7 +44,62 @@ For plugins the group name is the name of the plugin, e.g., the `level` field of
 
 **initialValue** (optional if optional is true):
     Value this config field should take in a newly initialized config.
-    This can also be an async function returning the value to use.
+    This can also be a synchronous function returning the value to use.
+    The function is called with the config after its stored fields are loaded, so it can base the value on other fields.
+
+**validator** (optional):
+    Function called with the value being set and the config it belongs to.
+    It should throw an error if the value is not acceptable, and the message of the error is passed on to whoever tried to set it.
+    Common validators such as `greaterThanZero`, `greaterThanEqualZero`, `integer` and `filePath` are available on `Config.validators`, along with `optional` to skip null and `all` to combine several.
+    The config is read only while the validator runs.
+
+**dependsOn** (optional):
+    Names of other fields the validator reads the value of.
+    When one of those fields is changed the validator of this field is run again against the new value, and the change is rejected if it fails.
+
+**restartRequired** (optional):
+    True if a restart of the controller, host or instance the config belongs to is needed for changes to take effect.
+    Changing such a field sets the `restartRequired` flag on the config, which the web interface uses to show that a restart is pending.
+    Defaults to false.
+
+**restartRequiredProps** (optional):
+    For object fields, names of properties that have the opposite of `restartRequired`.
+    Only used by the web interface to show which properties need a restart, `factorio.settings` uses it to mark the settings that are applied live.
+
+**credential** (optional):
+    Locations allowed to read the value of this field.
+    Other locations can still change the value if allowed by `access`, which is what you want for tokens and passwords.
+
+**readonly** (optional):
+    Locations allowed to change the value of this field.
+    Other locations can still read the value if allowed by `access`.
+
+**hidden** (optional):
+    True if the web interface should not show this field.
+    Used for internal values that are managed by Clusterio.
+
+**autoComplete** (optional):
+    Value for the autocomplete attribute of the input in the web interface, e.g. `section-factorio new-password`.
+    Only used for string and number fields.
+
+**inputComponent** (optional):
+    Name of the input component the web interface should render for this field instead of the default for its type.
+    Plugins register components with the `control.hooks.inputComponents` hook in their web entrypoint.
+    The hook returns an object whose keys match the field's `inputComponent` value.
+
+For example, with `inputComponent: "foo_frobber_level"` on a field:
+
+```js
+import LevelInput from "./LevelInput.js";
+
+export default async function({ control, plugin }) {
+    control.hooks.inputComponents.attach(plugin.name, () => ({
+        foo_frobber_level: LevelInput,
+    }));
+}
+```
+
+`LevelInput` must implement the `InputComponent` contract exported by `@clusterio/web_ui`.
 
 If the value for a field stored in on disk somehow ends up being invalid the field will take on the initial\_value instead when the config is loaded.
 
@@ -62,7 +117,7 @@ E.g.:
     let value = configInstance.fields["group.field"]
 
 The set method also takes an extra argument, which is the value to set the field to.
-If the value is not valid this will throw an InvalidValue exception, if the field doesn't exist it will throw an InvalidField exception.
+If the value is not valid this will throw an InvalidValueError exception, if the field doesn't exist it will throw an InvalidFieldError exception.
 
 
 ## Config Lifecycle

docs/configuration.md

@@ -1,5 +1,15 @@
 # Configuration
 
+Config values are changed with the `config set` commands of clusterioctl, clusteriocontroller and clusteriohost, or from the settings pages in the web interface.
+See [Managing a Cluster](/docs/managing-a-cluster.md) for the commands.
+
+All values are checked against the type of the field when set.
+Some fields have additional rules on top of that, such as a number having to be greater than 0, and these are listed under the field.
+Setting a value that fails a check is rejected with an error and the old value is kept.
+
+A few fields are internal to Clusterio.
+These are managed by Clusterio itself, hidden in the web interface and should not be modified by hand.
+
 
 ## Controller Configuration
 
@@ -20,11 +30,47 @@ This is also used by plugins to store its data.
 Defaults to "database".
 
 
+### controller.mods_directory
+
+Directory where mods shared with the cluster are stored.
+Mods uploaded through the web interface or downloaded from the mod portal end up here, and hosts fetch the mods they need for their instances from here.
+Needs to be writeable by the controller.
+
+Defaults to "mods".
+
+
+### controller.autosave_interval
+
+Interval in seconds the controller saves the data it holds in memory, such as users, instances, mod packs and plugin data, to controller.database_directory.
+The data is also saved on shutdown.
+Must be greater than 0.
+
+Defaults to 60.
+
+
+### controller.host_pairing_timeout
+
+Time in seconds a host can wait for approval before its request expires, after which the host requests again with a new code.
+Set to 0 for no limit.
+
+Defaults to 3600.
+
+
+### controller.host_pairing_max_pending
+
+Maximum number of hosts that can wait for approval at the same time.
+Hosts over the limit keep trying until there is room.
+Set to 0 for no limit.
+
+Defaults to 50.
+
+
 ### controller.http_port
 
 Port to host HTTP server on.
 If set to null no HTTP server will be exposed.
 At least one of this and controller.https_port needs to be set to a port.
+Must be a whole number greater than 0.
 
 Defaults to 8080.
 
@@ -35,6 +81,7 @@ Port to host HTTPS server on.
 Uses controller.tls_certificate and controller.tls_private_key as the certificate and private key for the HTTPS server.
 If set to null no HTTPS server will be exposed.
 At least one of this and controller.http_port needs to be set to a port.
+Must be a whole number greater than 0.
 
 See the [Setting up TLS](/docs/setting-up-tls.md) document for a guide to setting up HTTPS with Clusterio.
 
@@ -51,27 +98,56 @@ interfaces.
 Defaults to null.
 
 
+### controller.trusted_proxies
+
+Comma separated list of IP addresses and/or CIDR blocks of reverse proxies in front of the controller to trust the `X-Forwarded-For` header from.
+When a connection comes from one of these addresses the last address in the `X-Forwarded-For` header is used as the remote address of the connection instead of the address of the proxy.
+Entries that are not valid IP addresses are logged as errors and ignored.
+
+Defaults to null meaning the header is never trusted.
+
+
 ### controller.public_url
 
 Public address the controller is accessible on.
-Currently only used for `clusteriocontroller bootstrap create-ctl-config` in order to give the right url to connect to.
+Used as the URL in configs generated with `clusteriocontroller bootstrap create-ctl-config`, and by plugins like Player Auth that need to show the address of the web interface in-game.
 This should be a full URL ending with a /.
 
 Defaults to null meaning assume localhost.
 
 
+### controller.static_url
+
+Used to override where static assets such as the web bundle is loaded from.
+This can be used if you want to put the static assets on a separate cdn url like `https://cdn.example.com/static/` while keeping the API hosted directly by clusterio.
+Due to a limitation on how the web assets are built the pathname component of the url have to be `/static/`, values with any other path are rejected.
+
+See also the `clusteriocontroller copy-static` command for how to obtain the static asset files that need to be hosted.
+
+Defaults to null meaning use the internally hosted assets.
+
+
+### controller.grafana_url
+
+URL of a Grafana dashboard to link to from the overview page of the web interface, including the protocol.
+If null no link is shown.
+
+Defaults to null.
+
+
 ### controller.tls_certificate
 
 Path to TLS certificate to use for the HTTPS server when controller.https_port is configured.
+Both this and controller.tls_private_key have to be set for the controller to start with controller.https_port configured.
 
-Defaults to "database/certificates/cert.crt".
+Defaults to null.
 
 
 ### controller.tls_private_key
 
 Path to TLS private key to use for the HTTPS server when controller.https_port is configured.
 
-Defaults to "database/certificates/cert.key".
+Defaults to null.
 
 
 ### controller.auth_secret
@@ -79,6 +155,7 @@ Defaults to "database/certificates/cert.key".
 Base64 encoded authentication secret used to verify tokens issued to hosts, users, and sessions.
 This should contain 256 bytes of random data, and if changed will cause all tokens become invalid.
 Keep this secret if leaked an attacker could easily compromise the cluster.
+The value can only be read and changed from the controller itself, it is not available through clusterioctl or the web interface.
 
 Defaults to null which means generate a secure secret on startup.
 
@@ -88,6 +165,7 @@ Defaults to null which means generate a secure secret on startup.
 Interval in seconds heartbeats are sent out at for WebSocket connections.
 If a WebSocket connection hasn't received a heartbeat in 2 times the heartbeat interval it will be considered stale and closed.
 A lower value means less time between connections going stale and them being closed.
+Must be greater than 0.
 
 Defaults to 15.
 
@@ -99,25 +177,94 @@ A higher timeout gives more time for a client to recconect and resume an active
 In the case of the controller or client crashing the data loss is unavoidable.
 
 Value should not be less than the configured `max_reconnect_delay` of the clients and it should be greater than 2 times `controller.heartbeat_interval`.
+Must be greater than 0.
+
 Defaults to 60.
 
 
+### controller.max_send_buffer_size
+
+Size in MiB of messages sent to a connection that it has not yet acknowledged before the controller ends its session.
+The controller keeps these so they can be resent if the connection drops and resumes.
+A client that stops acknowledging messages, or falls far behind, gets disconnected and starts a new session when it reconnects.
+Changes apply to new sessions.
+Set to 0 for no limit.
+
+Defaults to 64.
+
+
 ### controller.metrics_timeout
 
 Timeout in seconds before a call to gather metrics from a host times out.
 This should be less than both the timeout and collection interval configured for the collection job in Prometheus.
+Must be greater than 0.
 
 Defaults to 8.
 
 
-### controller.stream_timeout
+### controller.max_subscription_filters
+
+Maximum number of filters one connection can hold for a single subscribed event.
+Subscription requests that would go over this limit are rejected.
+Set to 0 for no limit.
+Lowering the limit does not remove filters connections already hold.
+
+Defaults to 10000.
+
+
+### controller.system_metrics_interval
+
+Interval in seconds the controller gathers CPU, memory and disk usage from itself and every connected host for display in the web interface.
+Whether the controller needs a restart to apply an update is also checked on this interval.
+If 0 system metrics are not gathered.
+Must be 0 or greater.
+
+Defaults to 10.
+
+
+### controller.proxy_stream_timeout
 
 Timeout in seconds for proxy streams through the controller that has been created but is not yet sending data to be automatically closed.
 Streams that have started sending data before this timeout is not affected.
+Must be greater than 0.
 
 Defaults to 15.
 
 
+### controller.factorio_username
+
+Username of the Factorio.com account to authenticate with the Factorio API with.
+Together with controller.factorio_token this is used by the controller to download mods from the mod portal, and if controller.share_factorio_credentials_with_hosts is enabled, as the credentials in the server settings of instances.
+
+Defaults to null.
+
+
+### controller.factorio_token
+
+Token of the Factorio.com account to authenticate with the Factorio API with, see controller.factorio_username.
+This is the token shown on your profile page on factorio.com, not your password.
+The value is treated as a credential, it can be set from anywhere but only read back from the controller itself.
+
+Defaults to null.
+
+
+### controller.share_factorio_credentials_with_hosts
+
+If enabled hosts get controller.factorio_username and controller.factorio_token from the controller when they start an instance and put them in the server settings of that instance.
+Credentials set on the host with host.factorio_username and host.factorio_token, or on the instance through `username` and `token` in factorio.settings, take precedence over the ones from the controller.
+Disable this if you don't want the controller's credentials to be sent to the hosts.
+
+Defaults to true.
+
+
+### controller.default_mod_pack_id
+
+ID of the mod pack to use for instances that don't have factorio.mod_pack_id set.
+Instances without a mod pack of their own fail to start if this is null.
+
+Defaults to null.
+
+
 ### controller.default_role_id
 
 Role to automatically grant to new users.
@@ -126,6 +273,56 @@ If null no role is granted.
 Defaults to 1 which correspond to the default Player role.
 
 
+### controller.mod_portal_cache_duration_minutes
+
+Time in minutes the controller caches the list of mods fetched from the Factorio mod portal when browsing it from the web interface.
+Set to 0 to disable the cache and fetch the list on every request.
+Must be 0 or greater.
+
+Defaults to 30.
+
+
+### controller.mod_portal_page_size
+
+Number of results to request per page when fetching the list of mods from the Factorio mod portal.
+Must be greater than 0.
+
+Defaults to 1000.
+
+
+### controller.allow_remote_updates
+
+Whether the `controller update` command in clusterioctl and the update button in the web interface are allowed to update the `@clusterio/controller` package with npm.
+For security reasons this can only be changed locally with `clusteriocontroller config set` while the controller is stopped, and it is hidden in the web interface.
+The installer sets this, controller.allow_plugin_updates and controller.allow_plugin_install from one question about remote updates and plugin installs.
+See [Managing a Cluster](/docs/managing-a-cluster.md) for details on remote updates.
+
+Defaults to true.
+
+
+### controller.allow_plugin_updates
+
+Whether remote requests to update plugins installed on the controller with npm are allowed.
+Like controller.allow_remote_updates this can only be changed locally.
+
+Defaults to true.
+
+
+### controller.allow_plugin_install
+
+Whether remote requests to install new plugins on the controller with npm are allowed.
+Like controller.allow_remote_updates this can only be changed locally.
+
+Defaults to false.
+
+
+### controller.version
+
+Version of the controller package that last loaded this config.
+Set automatically on startup and used to detect when the controller has been updated or downgraded.
+Internal, hidden in the web interface and should not be changed.
+
+
 ### <plugin_name>.load_plugin
 
 Whether to load the plugin on the controller.
@@ -147,6 +344,8 @@ Defaults to "New Host".
 ### host.id
 
 Immutable numeric id of the host which uniquely identifies this host in the cluster.
+The controller picks the id when the host is approved and the host writes it here, the controller does not accept hosts with an id it has not approved.
+Hidden in the web interface.
 
 Defaults to a random 31 bit number.
 
@@ -155,10 +354,19 @@ Defaults to a random 31 bit number.
 
 Directory to look for the Factorio server(s) in.
 This can either point to a Factorio server directory, or to a directory containing multiple versions of the Factorio server.
+The headless build has no graphics, so when exporting data from an instance running it the base game's icons are read from a full install of the same major and minor version in this directory instead, if there is one.
 
 Defaults to "factorio".
 
 
+### host.mods_directory
+
+Directory the host stores mods downloaded from the controller in.
+When an instance starts the mods in its mod pack are downloaded here if missing and then linked into the mods directory of the instance.
+
+Defaults to "mods".
+
+
 ### host.instances_directory
 
 Directory to store instances in.
@@ -177,19 +385,14 @@ Defaults to "http://localhost:8080/".
 ### host.controller_token
 
 Access token used for authenticating with the controller.
-You can generate an access token with `clusterioctl host generate-token --id <host-id>`, or use the `clusterioctl host create-config` to create a new host config with the correct url and token in it.
+The host saves it together with host.id when it is approved, see [Setting up remote hosts](/README.md#setting-up-remote-hosts).
+The token only works while the host exists on the controller, if the host is revoked it asks to be approved again the next time it starts.
+Set it to `enter token here` to make the host ask to join again.
+The value can only be read and changed from the host itself.
 
 Defaults to "enter token here".
 
 
-### host.tls_ca
-
-Path to certificate in PEM format to use for validating a TLS connection to the controller.
-If you have a self signed certificate on the controller you will need to copy the certificate to your hosts and set it as the certificate authority with this option.
-
-Defaults to null meaning use Node.js's default set of trusted certificate authorities.
-
-
 ### host.public_address
 
 External address instances hosted on this host can be accessed on.
@@ -198,14 +401,83 @@ This is used by plugins like Server Select to give the correct address to switch
 Defaults to "localhost".
 
 
+### host.factorio_port_range
+
+UDP ports the host hands out to instances that don't have factorio.game_port set.
+Written as a comma separated list of ports and/or ranges of ports separated with a dash, for example "34100-34199" or "34100, 34200-34210".
+A port is picked when the instance is started and remembered in factorio.host_assigned_game_port, so an instance keeps the same port as long as it is still free.
+Starting an instance fails if all ports in the range are taken.
+
+Defaults to "34100-34199".
+
+
+### host.factorio_username
+
+Username of the Factorio.com account to put in the server settings of instances on this host.
+If set this takes precedence over the credentials shared by the controller, but not over `username` set in factorio.settings of an instance.
+
+Defaults to null.
+
+
+### host.factorio_token
+
+Token of the Factorio.com account to go with host.factorio_username.
+The value is treated as a credential, it can be set from anywhere but only read back from the host itself.
+
+Defaults to null.
+
+
 ### host.max_reconnect_delay
 
 Maximum delay in seconds to wait after connection to the controller is dropped before attempting to reconnect to it.
 The actual delay on each reconnect will be a random number between 0 and this configured value to avoid all clients trying to reconnect at the same time.
+Must be greater than 0.
 
 Defaults to 60.
 
 
+### host.allow_remote_updates
+
+Whether the `host update` command in clusterioctl and the update button in the web interface are allowed to update the `@clusterio/host` package with npm.
+For security reasons this can only be changed locally with `clusteriohost config set` while the host is stopped, and it is hidden in the web interface.
+The installer sets this, host.allow_plugin_updates and host.allow_plugin_install from one question about remote updates and plugin installs.
+See [Managing a Cluster](/docs/managing-a-cluster.md) for details on remote updates.
+
+Defaults to true.
+
+
+### host.allow_plugin_updates
+
+Whether remote requests to update plugins installed on the host with npm are allowed.
+Like host.allow_remote_updates this can only be changed locally.
+
+Defaults to true.
+
+
+### host.allow_plugin_install
+
+Whether remote requests to install new plugins on the host with npm are allowed.
+Like host.allow_remote_updates this can only be changed locally.
+
+Defaults to false.
+
+
+### host.version
+
+Version of the host package that last loaded this config.
+Set automatically on startup and used to detect when the host has been updated or downgraded.
+Internal, hidden in the web interface and should not be changed.
+
+
+### <plugin_name>.load_plugin
+
+Whether to load the plugin on the host.
+Only plugins with a host or instance part have this field in the host config.
+Plugins not loaded on the host will not be loaded on the instances it hosts.
+
+Defaults to true.
+
+
 ## Instance Configuration
 
 ### instance.name
@@ -218,6 +490,7 @@ Defaults to "New Instance".
 ### instance.id
 
 Imutable numeric id of the instance which uniquely identifies this instance in the cluster.
+Hidden in the web interface.
 
 Defaluts to a random 31 bit integer.
 
@@ -227,6 +500,7 @@ Defaluts to a random 31 bit integer.
 Host this instance is assigned to.
 To change this you need to use the separate assign instance interface.
 After being assigned to a host the directory for the instance is created on the host.
+Internal and hidden in the web interface.
 
 Defaults to null meaning not assigned.
 
@@ -247,26 +521,80 @@ This allows you to prevent certain instances from being started when using the b
 Defaults to false.
 
 
+### instance.is_template
+
+If enabled this instance is a template other instances can inherit config values from.
+Templates cannot be assigned to a host and therefore never start.
+Hidden from `instance list` in clusterioctl unless `--templates` is passed, and listed separately in the web interface.
+An instance cannot stop being a template while other instances inherit from it.
+Hidden in the web interface, set when creating the template.
+
+Defaults to false.
+
+
+### instance.template_id
+
+ID of the template to inherit config values from.
+Inherited fields take their value from the template and follow it when it changes, setting a field on this instance stops inheriting it.
+Object fields like `factorio.settings` are inherited per property, properties set on this instance override the ones from the template.
+When set on an existing instance fields with the same value as the template or the default value become inherited, except the server name in `factorio.settings`.
+`instance.name`, `instance.is_template`, `instance.template_id`, the port fields, `factorio.rcon_password` and hidden fields are never inherited.
+A template may itself inherit from another template, but not from itself through a chain of templates.
+The fields currently inherited are stored in the hidden `instance.inherited_fields` field.
+In the web interface inherited values are linked and read only until they are unlinked.
+
+Defaults to null meaning no template.
+
+
 ### factorio.version
 
 Version of Factorio to use for this instance.
-Can be a version like "1.0.0" or special string "latest" meaning the latest version of Factorio found on the host.
+Can be a specific version like "2.0" or "2.0.15", a release channel like "stable" or "experimental", or the special string "latest" meaning the latest version of Factorio found on the host.
+A release channel is resolved to a version through the latest releases data the controller keeps, and the instance fails to start if that is unavailable.
+Values that don't match one of these forms are rejected.
 
 Defaults to "latest".
 
 
+### factorio.executable_path
+
+Path relative to the Factorio installation directory of the executable to run.
+If null the path is auto detected, which is `bin/x64/factorio` on Linux and Windows and `MacOS/factorio` on macOS.
+Only needed in special setups.
+
+Defaults to null.
+
+
+### factorio.shutdown_timeout
+
+Time in seconds to wait for the Factorio server to exit after asking it to stop before the process is killed.
+Set to 0 to wait forever.
+Changing this while the instance is stopping restarts the timer with the new value.
+Must be 0 or greater.
+
+Defaults to 300.
+
+
 ### factorio.game_port
 
 UDP port to run the Factorio server on.
-If null a random port in the dynamyc range assigned each time the instance starts.
+If null a port from host.factorio_port_range on the host is assigned to the instance.
+Negative values are rejected.
 
 Defaults to null.
 
 
+### factorio.host_assigned_game_port
+
+Port from host.factorio_port_range the host has assigned to this instance while factorio.game_port is null.
+Internal, set by the host and only accessible from the host.
+
+
 ### factorio.rcon_port
 
 TCP port to start the RCON interface on the Factorio server on.
 If null a random port in the dynamic range is assigned each time the instance starts.
+Negative values are rejected.
 
 Defaults to null.
 
@@ -275,16 +603,18 @@ Defaults to null.
 
 Password to use for the RCON interafec.
 If null a random secure password is generated and used each time the instance starts.
+The value is treated as a credential and can only be read back by the controller and the host.
 
 Defaults to null.
 
 
-### player_online_autosave_slots
+### factorio.player_online_autosave_slots
 
 Keeps a separate pool for autosaves where at least on player has been online since the previous autosave was done.
 This requires regular autosaving to be enabled and will rename autosaves to `_autosave_poN.zip` (where N is a slot number) whenever a player has been online for that save.
 The slot numbers start at 1, are incremented by 1 after each autosave that is renamed and reset back to 1 whenever this value is exceeded.
-Note that this value should be set to a higher value than the value of `autosave_slots` in `factorio.settings`.
+Setting this to a value lower than `autosave_slots` in factorio.settings is rejected, unless it is 0.
+The same check is done when factorio.settings is changed.
 Useful for preventing the loss of all progress when nobody is around on always online servers with auto pause disabled.
 
 If 0 no autosave renaming takes place.
@@ -292,16 +622,57 @@ If 0 no autosave renaming takes place.
 Defaults to 5.
 
 
+### factorio.mod_pack_id
+
+ID of the mod pack to use on this instance.
+The mods in the pack are linked into the mods directory of the instance every time it starts, and any other files in that directory are removed.
+If null the mod pack set in controller.default_mod_pack_id is used.
+
+Defaults to null.
+
+
 ### factorio.enable_save_patching
 
 Whether to use save patching or not.
 When enabled lua code is patched into the game save before starting it.
 Most plugins require the use of save patching to function.
 Turning it off makes it possible to use Clusterio to run and manage regular vanilla games and scenarios not compatible with Clusterio.
+Plugins that need save patching can't be loaded on the instance while this is disabled.
+Disabling it while such a plugin is loaded is rejected, and so is loading such a plugin while it is disabled.
+Saves patched before are restored to their original control.lua and have the modules removed when started with this disabled.
+Data the modules stored in the game is left in place.
 
 Defaults to true.
 
 
+### factorio.enable_script_commands
+
+Allow Clusterio and plugins to send commands that disable achievements to the server over RCON, that is `/c`, `/sc`, `/mc`, `/cheat`, `/editor` and their long forms.
+Clusterio integrations and most plugins need this, and when enabled achievements are disabled on the server at startup.
+When disabled attempts to send such a command fail with an error.
+This does not stop players from using these commands themselves.
+Like factorio.enable_save_patching, plugins that need script commands can't be loaded on the instance while this is disabled.
+
+Defaults to true.
+
+
+### factorio.enable_lua_udp
+
+Enable UDP messaging between the host and the Factorio server by passing `--enable-lua-udp` to Factorio.
+This lets plugins send UDP packets to the server and receive data sent with `clusterio_api.send_udp` in-game.
+Requires Factorio 2.1.10 or later, earlier versions crash when a packet is received on a headless server.
+
+Defaults to false.
+
+
+### factorio.lua_udp_port
+
+UDP port on localhost the Factorio server receives Lua UDP messages on when `factorio.enable_lua_udp` is enabled.
+If null a random port in the dynamic range is assigned each time the instance starts.
+
+Defaults to null.
+
+
 ### factorio.enable_whitelist
 
 Turn on the whitelist on the server.
@@ -309,6 +680,13 @@ Turn on the whitelist on the server.
 Defaults to false.
 
 
+### factorio.enable_authserver_bans
+
+Pass the `--use-authserver-bans` flag to Factorio, which makes the server check connecting players against the multiplayer bans on Factorio.com and report bans and unbans done on the server back to it.
+
+Defaults to false.
+
+
 ### factorio.settings
 
 Object with the settings to put into `server-settings.json` for the Factorio server.
@@ -316,7 +694,9 @@ The settings in `data/server-settings.example.json` of the Factorio installation
 
 Changes to the following properties will be applied live if the instance is running while it is changed: `afk_autokick_interval`, `allow_commands`, `autosave_interval`, `autosave_only_on_server`, `description`, `ignore_player_limit_for_returning_players`, `max_players`, `max_upload_slots`, `max_upload_in_kilobytes_per_second`, `name`, `only_admins_can_pause_the_game`, `game_password`, `require_user_verification`, `tags`, `visibility`.
 
-Defaults to {"tags":["clusterio"],"auto_pause":false}.
+With `auto_pause` on, the plugins included with Clusterio stop their periodic commands while no players are online, so the game stays paused.
+
+Defaults to a set of common settings filled in when the instance is created, such as `"tags": ["clusterio"]`, `"auto_pause": false` and a `name` and `description` based on the cluster and instance names.
 
 
 ### factorio.verbose_logging
@@ -327,6 +707,14 @@ This prints more messages to the log.
 Defaults to false.
 
 
+### factorio.console_logging
+
+Pass the `--console-log` flag to Factorio to make it write the console output, such as chat, commands and player joins, to `console.log` in the instance directory.
+Useful for 3rd party tools that read the console log of the server.
+
+Defaults to false.
+
+
 ### factorio.strip_paths
 
 Strip down absolute paths in the server log going to files inside the instance directory such that they are relative to the instance directory.
@@ -349,25 +737,35 @@ Defaults to true.
 ### factorio.sync_adminlist
 
 Synchronize in-game admin list with admin status of the users in cluster.
+One of "disabled", "enabled" or "bidirectional".
 If enabled Clusterio will generate a new `server-adminlist.json` on instance startup based on the users in the cluster with admin status set to true, and keep the admins in sync with the users that have admin status while the instance is running.
+With "bidirectional" players promoted or demoted in-game with `/promote` and `/demote` are also updated in the cluster, and from there on the other instances.
+Configs from before this became a choice are migrated from true and false to "enabled" and "disabled".
 
-Defaults to true.
+Defaults to "bidirectional".
 
 
 ### factorio.sync_whitelist
 
 Synchronize in-game whitelist with the whitelisted status of the users in the cluster.
+One of "disabled", "enabled" or "bidirectional".
 If enabled Clusterio will generate a new `server-whitelist.json` on instance startup based on the users in the cluster with whitelisted status set to true, and keep the whitelisted users in sync with the users that have whitelisted status while the instance in running.
+With "bidirectional" changes made in-game with `/whitelist` are picked up by watching `server-whitelist.json` for changes and updated in the cluster as well.
+This requires factorio.enable_whitelist to be on, as Factorio doesn't write the file otherwise.
+Configs from before this became a choice are migrated from true and false to "enabled" and "disabled".
 
-Defaults to true.
+Defaults to "bidirectional".
 
 
 ### factorio.sync_banlist
 
 Synchronize in-game banlist with the banned status of users in the cluster.
+One of "disabled", "enabled" or "bidirectional".
 If enabled Clusterio will generate a new `server-banlist.json` on instance startup based on users in the cluster with banned status set to true, and keep the banned users in sync with the users that have the banned status while the instance is running.
+With "bidirectional" players banned or unbanned in-game with `/ban` and `/unban` are also updated in the cluster, and from there on the other instances.
+Configs from before this became a choice are migrated from true and false to "enabled" and "disabled".
 
-Defaults to true.
+Defaults to "bidirectional".
 
 
 ### factorio.max_concurrent_commands
@@ -384,6 +782,7 @@ This means a high number of concurrent commands can amplify resends due to packe
 
 Prior to 0.18.7 the maximum practical size of game update sent where arround 8 kB due to the UDP receive buffer on windows defaulting to this value, larger updates would not get through the receive buffer and cause the connection to drop.
 To stay below the 8 kB limit the maximum safe value for this option would be around 7000 / (3 * game_speed * maximum_segment_size), which is around 20 in normal circumstances.
+Must be greater than 0.
 
 Defaults to 5.
 
@@ -391,21 +790,22 @@ Defaults to 5.
 ### <plugin_name>.load_plugin
 
 Whether to load the given plugin on the instance.
-Note that plugins need to be loaded on the controller in order for them to be loaded on instances.
+Note that plugins need to be loaded on the controller and the host in order for them to be loaded on instances.
+Loading a plugin that requires save patching, script commands or Lua UDP is rejected while factorio.enable_save_patching, factorio.enable_script_commands or factorio.enable_lua_udp respectively is disabled on the instance.
 
-Defaults to true.
+Defaults to true, or false if the instance does not have the features the plugin requires.
 
 
-## Control Configuration
+## Ctl Configuration
 
-### control.controller_url
+### ctl.controller_url
 
 URL to connect to the controller to.
 
 Defaults to null meaning complain about it not being set and exit.
 
 
-### control.controller_token
+### ctl.controller_token
 
 Access token used for authenticating with the controller.
 You can generate an access token with `clusteriocontroller bootstrap generate-user-token <username>`, or use the `clusteriocontroller bootstrap create-ctl-config <username>` to create a new ctl config with the correct url and token in it.
@@ -413,17 +813,10 @@ You can generate an access token with `clusteriocontroller bootstrap generate-us
 Defaults to null meaning complain about it not being set and exit.
 
 
-### control.tls_ca
-
-Path to certificate in PEM format to use for validating a TLS connection to the controller.
-If you have a self signed certificate on the controller you will need to copy the certificate to the computer you run clusterctl from and set it as the certificate authority with this option.
-
-Defaults to null meaning use Node.js's default set of trusted certificate authorities.
-
-
-### control.max_reconnect_delay
+### ctl.max_reconnect_delay
 
 Max duration in seconds to wait before attempting to reconnect with the controller after the connection is dropped.
 The actual delay on each reconnect will be a random number between 0 and this configured value to avoid all clients trying to reconnect at the same time.
+Must be 0 or greater.
 
 Defaults to 60.

docs/contributing.md

@@ -3,23 +3,28 @@
 You are probably reading this because you want to contribute code to Clusterio.
 Great!  We need people like you.
 Though we have some conventions and workflows that we kindly ask you to follow.
-We have included all the pratical considerations in this document.
-Although, we recomend checking out out our [past decisions](/docs/decisions.md) if you have the time.
+This document covers the development workflow, commands, and repository layout.
+Read our [past decisions](/docs/decisions.md) for compatibility policies and design rationale.
 
 
 ## Contents
 
+- [Project map](#project-map)
 - [Workflow](#workflow)
     - [Starting a Feature Branch](#starting-a-feature-branch)
     - [Setting up the Development Environment](#setting-up-the-development-environment)
+    - [Build outputs](#build-outputs)
+    - [Debugging](#debugging)
     - [Checking your code for errors](#checking-your-code-for-errors)
+    - [Cleaning generated and runtime files](#cleaning-generated-and-runtime-files)
     - [Submitting a Pull Request](#submitting-a-pull-request)
+    - [Breaking Compatibility with the Last Release](#breaking-compatibility-with-the-last-release)
     - [Editing your Feature Branch](#editing-your-feature-branch)
     - [Resolving Merge Conflicts](#resolving-merge-conflicts)
     - [Updating Your GitHub Fork](#updating-your-github-fork)
     - [Publishing releases to npm](#publishing-releases-to-npm)
 - [Changelog](#changelog)
-- [Supported Node.js and Factorio Version](#supported-node.js-and-factorio-version)
+- [Supported Node.js and Factorio Versions](#supported-nodejs-and-factorio-versions)
 - [Code Style](#code-style)
     - [Naming Style](#naming-style)
     - [Units](#units)
@@ -28,6 +33,28 @@ Although, we recomend checking out out our [past decisions](/docs/decisions.md)
     - [Markdown](#markdown)
 
 
+## Project map
+
+Clusterio manages distributed Factorio servers through a controller, hosts, and plugins.
+
+| Location | Responsibility |
+| --- | --- |
+| `packages/controller/` | Cluster state, users and roles, connections, HTTP API, and serving the web UI. Start with `src/Controller.ts` and `src/ControlConnection.ts`. |
+| `packages/host/` | Instance lifecycle, Factorio processes, save patching, and exports. Start with `src/Host.ts`, `src/Instance.ts`, `src/server.ts`, and `src/patch.ts`. |
+| `packages/ctl/` | Command-line administration and plugin commands. |
+| `packages/lib/` | Shared messages, routing, config, permissions, plugin loading, logging, and utilities for Node and browser consumers. |
+| `packages/web_ui/` | React/Ant Design interface and browser control connection; bundled through the controller's Vite build. |
+| `packages/create/` | Installer and JavaScript/TypeScript plugin templates. |
+| `plugins/` | Bundled plugins, including their Node, web, Lua, and test code. |
+| `external_plugins/` | Plugins developed in independent repositories and included in the local workspace. |
+| `packages/host/modules/` | Lua modules injected into saves. |
+| `packages/host/lua/` | Factorio mod sources, including `clusterio_lib`. |
+| `test/` | Root test suite, fixtures, helpers, integration harness, and manual tests. Plugin tests also live under `plugins/*/test/`. |
+
+Start with [how it works](how-it-works.md), [communication](communication.md), and the [config system](config-system.md) for architecture.
+See [writing plugins](writing-plugins.md) and [developing for Clusterio](developing-for-clusterio.md) for plugin and Factorio contracts.
+
+
 ## Workflow
 
 While we don't require you to follow this workflow, it makes things much simpler for both you and us if you choose to do so.
@@ -52,16 +79,22 @@ Do not run `git pull upstream` it will mess thing up!
 
 ### Setting up the Development Environment
 
-The project is organized into several packages that are all tied together using pnpm's workspace feature.
-In order to get the development environment up and running you will need to run the following command:
+Run commands from the repository root unless stated otherwise.
+Use the latest Node.js LTS release and the pnpm version pinned by `packageManager` in root `package.json`.
+Install dependencies with:
 
-    pnpm install
+    pnpm install --no-frozen-lockfile
 
-This installs dependencies needed by tests and links the packages up so they work from the git work tree.
-To start a cluster from the repo you will first need to initialize it, this can be done using the installer:
+This installs dependencies and builds the packages.
+`pnpm-lock.yaml` is intentionally ignored; do not force-add it or assume a frozen-lockfile install is supported.
+For a fresh development cluster, run the installer and select standalone mode to create `config-controller.json` and `config-host.json`:
 
     node packages/create --dev
 
+The first time the host starts it prints a link for approving it in the web interface.
+
+You can skip this step if you already have a working controller and host configuration.
+
 To add plugins to use in the development environment use
 
     node packages/ctl plugin add ./path/to/plugin
@@ -77,31 +110,63 @@ The documentation uses the binaries provided by the packages, but for the develo
 
 By default node does not enable source maps, to get stack traces pointing to the `.ts` files you will need to pass `--enable-source-maps` to `node` or set the environment variable `NODE_OPTIONS=--enable-source-maps`.
 
-Note that to use `clusterioctl` you will have to create a control config first:
+Note that to use `clusterioctl` you will have to create a ctl config first:
 
-    node packages/controller bootstrap create-ctl-config [admin-user]
+    node packages/controller bootstrap create-ctl-config <admin-user>
 
-Once you've set up the cluster you can use `node packages/controller run` to run the controller and `node packages/host run` to run the host which connects to the controller.
+Use the name of an existing admin user.
+Run `node --enable-source-maps packages/controller run` and `node --enable-source-maps packages/host run` in separate terminals.
 
 When editing TypeScript files ran by Node.js you need to run `pnpm build` to compile the files to JavaScript before restarting the controller/host/ctl for changes take effect.
 To have TypeScript watch for changes and rebuild immediadly you may run `pnpm watch` instead.
 
 For web development on the controller there are also the following flags:
 
-`--dev` - Recompile the `web_ui` package on the fly providing live reloading of it.
+`--dev` - Serve the `web_ui` package from source through Vite's development server with hot module replacement.
 
-`--dev-plugin [name]` - Recompile the web module for the given plugin on the fly proving live reloading of it.
+`--dev-plugin [name]` - Serve the web module for the given plugin from source the same way.
+This also serves the `web_ui` package from source, as the plugin has to share its modules with it.
 
 These options can be combined and multiple plugins can be actived for dev mode.
 Keep in mind if you're working on external plugins the `--dev-plugin` option is likely to only work if the plugin is placed inside the `external_plugins` directory and its dependencies are installed with pnpm as part of the clusterio repository workspace.
-Note that webpack is configured to delete the web interface build when using these options, so you will have to run `pnpm run -r --if-present prepare` before you start the controller without these flags again.
+
+
+### Build outputs
+
+| Command | Output |
+| --- | --- |
+| `pnpm build` | Compiled JavaScript and type declarations in each package's `dist/node/` and, where applicable, `dist/browser/`. |
+| `pnpm watch` | TypeScript compilation as files change; restart affected Node processes afterward. |
+| `pnpm -r run prepare` | Compiled packages, generated validators, and production web bundles. |
+| `pnpm build-mod` | Factorio mod archives in root `dist/`. |
+
+`pnpm build` alone does not regenerate the standalone validator or web bundles.
+After changing `packages/lib/src/data/messages_core.ts`, run `pnpm -r run prepare` to compile the schema and regenerate its validator.
+
+
+### Debugging
+
+Establish the controller, host, instance, Factorio version, enabled plugins, and exact reproduction first.
+Enable source maps and confirm the affected process is running rebuilt code.
+Use the contextual logger so host, instance, and plugin metadata remain available.
+Development logs are in `logs/`; integration logs are in `temp/test/logs/` and are uploaded by CI.
+
+For a failing request or event, start with its handler and the input that triggers the failure.
+Handlers are registered with `handle(MessageClass, handler)`; searching for the message class will help you find its handler.
+Inspect the input and the state used by the failing operation, then try to reproduce the failure in a [focused test](#checking-your-code-for-errors).
+If the handler is never reached, investigate message registration, routing, and permission checks using the [communication guide](communication.md).
+For errors reported by Factorio, start with the Lua stack trace and the module or mod it identifies; the [developing-for-Clusterio guide](developing-for-clusterio.md) explains how that code communicates with the host.
+
+For connection and recovery bugs, test disconnect, reconnect, timeout, and shutdown as applicable.
+A cached controller status does not prove the current state of a host or Factorio process.
+Recovery mode disables normal plugin loading; account for it when diagnosing missing plugin behavior and [Lua state migrations](developing-for-clusterio.md#initialisation-and-recovery).
+Verify UI behavior in the browser: successful compilation does not verify rendering, permissions, or subscriptions.
 
 
 ### Starting a Feature Branch
 
 Development is done exclusively in feature branches.
-This means the first thing to do before starting any development at all is to make a new branch starting from the master branch of the main repository.
-To do this check out that branch from the main repository.
+To start a new feature branch, first check out master from the main repository.
 
     git fetch upstream
     git checkout upstream/master
@@ -117,13 +182,61 @@ But it's nice to have its name be somewhat descriptive of what it implements.
 
 ### Checking your code for errors
 
-There's automated tests and linting setup for the project.
-Please do add tests for any code you add and run both:
+Tests use Mocha and Node assertions, mostly as JavaScript ESM importing compiled packages.
+Run the test suite and linter from the repository root:
 
     pnpm run test
     pnpm run lint
 
-To check that your changes pass the integration tests as well as the ESLint rules set up for the project.
+`pnpm test` builds TypeScript and runs root and bundled-plugin tests, excluding `test/manual/`.
+Run tests from the root: individual package `test` scripts are often placeholders that deliberately fail.
+Use `pnpm cover` for the full suite with c8 coverage.
+
+The full test suite can take a while to run.
+Use `pnpm run fast-test` to skip tests marked as slow, or `pnpm run no-external-test` to skip tests that depend on external APIs such as the Factorio mod portal or GitHub.
+These correspond to setting the `FAST_TEST` and `NO_EXTERNAL_TEST` environment variables and can be combined.
+For example, `FAST_TEST=y NO_EXTERNAL_TEST=y pnpm test` combines both exclusions.
+These flags still run the remaining integration setup and tests; neither produces an isolated unit-test run.
+When writing slow tests call `slowTest(this)`, and for external API tests call `externalTest(this)`; both are exported from `test/common.js`.
+For tests that need a Factorio installation, call `requiresFactorio(this)` in the test or pass the suite to `requiresFactorio`, imported from `test/integration/index.js`.
+`test/common.js` also provides JSON round-trip/schema helpers, and `test/mock.js` provides shared mocks.
+
+For a focused test, build first and select the file explicitly instead of appending it to the full-suite script:
+
+```sh
+pnpm build
+NODE_EXTRA_CA_CERTS="$PWD/test/file/tls/cert.pem" pnpm exec mocha \
+  --enable-source-maps --check-leaks test/lib/helpers.js
+```
+
+Replace the example file with the relevant test; use `--grep` to narrow it further.
+Preserve the test TLS CA configuration for HTTPS integration tests.
+Use `--require ./test/setup_logging.js` when an isolated test needs the shared logger configured.
+Some tests import `test/integration/index.js`, which installs root hooks and starts a controller and host even for a targeted invocation.
+
+The integration harness recreates its configs, database, mods, and instances under `temp/test/` and uses HTTP port 8880 and HTTPS port 4443.
+Do not run competing integration suites in the same checkout or on those ports.
+It locates Factorio through `host.factorio_directory` in root `config-host.json`, defaulting to `factorio/`.
+The full harness currently requires a usable Factorio installation: a missing directory fails discovery, and an empty directory fails setup while selecting a version.
+Some individual tests have conditional skips, but these do not make a full run without Factorio succeed.
+
+Use the relevant production bundle, mod build, or [manual scenario](../test/manual/README.md) for changes affecting those surfaces.
+For documentation changes, check that links, paths, and example commands are correct.
+
+
+### Cleaning generated and runtime files
+
+Inspect `node clean.js --help` and preview the selected scope with `--dry-run` before cleaning.
+
+| Command | Removal scope |
+| --- | --- |
+| `node clean.js --dry-run` | Preview workspace package/plugin build output and Vite dependency caches; omit `--dry-run` to clean, or use `pnpm clean`. |
+| `node clean.js tests --dry-run` | Also preview root `.nyc_output/`, `coverage/`, the whole `temp/` directory, and `static/`. |
+| `node clean.js all --dry-run` | Also preview runtime databases, instances, logs, mods, local configs, `FactorioAdminToken.txt`, and `plugin-list.json`. |
+
+`all` deletes cluster runtime data, including configurations and saves; back up anything you want to keep before using it.
+The cleaner excludes `external_plugins/` and does not remove mod archives in root `dist/`.
+Do not commit local configs, tokens, databases, saves, logs, or generated build output.
 
 
 ### Submitting a Pull Request
@@ -137,6 +250,40 @@ You can also pass the `--set-upstream` (or `-u`) flag to make `git push` do the
 After your feature branch have been merged you should consider it final.
 If there are more changes you want to have merged or mistakes you need to fix you must start a new feature branch and submit a new pull request.
 
+Pull request descriptions should contain a `### Changelog` section with additions for the changelog contained inside a code block, see the [CHANGELOG.md](/CHANGELOG.md) file for the formatting of changelog entries and possible sections to use.
+If there are no changelog entries to add, remove the code block and start the changelog section with the text `None.`, followed by an optional reason for why it is not is needed.
+
+### Breaking Compatibility with the Last Release
+
+The version-compat job in CI runs the local controller with the latest published host, and the published controller with the local host.
+It fails if a link message changed its src, dst, data or response schema since that release.
+Control is left out of src and dst, and messages that only go between control and the controller are not checked, as the web UI is served by the controller it talks to.
+If the break is intended, add an entry to [scripts/version-compat-breaks.json](../scripts/version-compat-breaks.json) in the same pull request.
+Breaking changes are only accepted if the next release is intended to include them, see our decision on [breaking changes](/docs/decisions.md#breaking-changes).
+The entry is keyed by the published version directly before the breaking change was introduced, which is the latest release at the time.
+Every entry needs the pull request number, a reason saying what breaks, and an impact saying why end users are not or only minimally affected.
+
+```json
+{
+	"2.0.3": {
+		"messages": {
+			"request FactorioVersionsRequest": {
+				"pr": 1129,
+				"reason": "What breaks between the two versions.",
+				"impact": "Why end users are not or only minimally affected."
+			}
+		},
+		"connect": { "pr": 1234, "reason": "Why a host cannot connect at all.", "impact": "..." }
+	}
+}
+```
+
+Listed messages are reported as warnings with the reason and impact instead of failing the job.
+Only add `connect` when the published and local versions cannot connect at all, it skips starting the cluster.
+Listing a message that did not change fails the job.
+Entries only apply while their version is the latest release, after the next release they are ignored and can be removed.
+Describe the break in the Breaking Changes section of the changelog.
+
 
 ### Editing your Feature Branch
 
@@ -193,12 +340,15 @@ The format of this log should be self explanatory, please follow it carefully. P
 
 ## Supported Node.js and Factorio Versions
 
-Clusterio run on Node.js v18 and up, make sure to check that the Node builtin API's and npm packages you use are supported on these versions.
-The GitHub Actions tests are run on whatever version of Node.js v18 and v20 is the default.
+For development, use the latest Node.js LTS release, following the [installation instructions](../README.md#installation).
+Make sure the Node.js built-in APIs and npm packages you use remain compatible with the supported versions.
+The GitHub Actions tests run every Factorio version on the latest Node.js, and every other supported Node.js version with the latest Factorio only, which keeps the number of jobs within GitHub's concurrent job limit.
+Coverage is collected on the oldest supported Node.js; see the [CI workflow](../.github/workflows/node.js.yml) for the version matrix.
 
-For Factorio Clusterio 2.0 aims to support version 0.17.69 and up, including the latest experimental release.
-It's recommended that you use the lua API reference for 0.17.69, as there's no information on what version Factorio API's were introduced in.
-The GitHub Actions tests are run against the latest experimental release.
+For Factorio, active support covers the latest stable version and the previous major version, using version lines such as 2.1, 2.0 and 1.1 as described in the [Factorio support policy](decisions.md#factorio).
+Older versions from 0.17 onwards receive passive support where it does not restrict actively supported versions.
+Check the Lua API documentation for the Factorio versions your changes target and preserve compatibility with the actively supported versions.
+The GitHub Actions tests use pinned Factorio releases; see the [CI workflow](../.github/workflows/node.js.yml) for the current version matrix.
 
 Check out all our of decisions for [node, factorio, and operation support](/docs/decisions.md#supportability).
 
@@ -219,13 +369,10 @@ Fields in configs uses lowercase_underscore.
 JavaScript files are named using lowercase_underscore for files that export multiple items.
 Files containing and exporting a single class should be named the same as the class in PascalCase.
 
-Relative imports in lib package are prefixed with lib to make them easier to distinguish, as the names tend to be very generic.
-E.g.:
-
-    const libLink = require("./link");
-    const libLuaTools = require("./lua_tools");
-
-Note that no sub-modules of the lib package is imported directly from the outside of it with the exception of `build_mod`.
+Use ESM imports, including `.js` extensions in TypeScript relative imports.
+For namespace imports within lib, use the `lib` prefix to distinguish generic module names, for example `import * as libFileOps from "./file_ops.js";`.
+Production consumers should import shared public APIs through `@clusterio/lib` rather than reaching into its internals.
+When adding public shared exports, check both `packages/lib/index.ts` and `packages/lib/browser.ts` and keep Node-only dependencies out of browser code.
 
 For lua code lowercase_underscore is used for everything.
 
@@ -234,7 +381,7 @@ For lua code lowercase_underscore is used for everything.
 When naming variables whos unit is not a base SI unit like seconds or metres the unit used should be suffixed in the variable name:
 E.g.:
 
-    const startTimeMs = date.now();
+    const startTimeMs = Date.now();
     const endNs = process.hrtime();
 
 This makes it easier to spot different unit bases are being mixed in the code.
@@ -275,7 +422,7 @@ For example:
 ### Markdown
 
 Markdown files are formatted using one line per sentence to improve diff reports when making changes.
-Headings have two spaces before them and on space after them to make them stand out, the heading at the top of the file does not have any spaces before it, and heading immediadly followed by another heading have one space between them.
+Headings have two blank lines before them and one after them; the top heading has no blank lines before it, and consecutive headings have one blank line between them.
 For example:
 
 ```md

docs/decisions.md

@@ -18,7 +18,7 @@ If there is a particular issue or concern you would like the team to comment on
     - [Naming Times and Durations](#naming-times-and-durations)
     - [Strings](#strings)
 3. Code Style (TS / JS / Web)
-    - [ESLint](#eslint)
+    - [Oxlint](#oxlint)
     - [Imports Within `lib` Package](#imports-within-lib-package)
     - [Name Style](#name-style-ts)
 4. Code Style (Lua)
@@ -38,7 +38,7 @@ If there is a particular issue or concern you would like the team to comment on
     - [React](#react)
     - [Separation of Host and Controller](#separation-of-host-and-controller)
     - [Typescript](#typescript)
-    - [Webpack](#webpack)
+    - [Vite](#vite)
 8. Supportability
     - [Breaking Changes](#breaking-changes)
     - [Distribution](#distribution)
@@ -91,6 +91,11 @@ Therefore, we decided to use TSDoc comments for this purpose as it is well inter
 Our specific implementation is TypeDoc because it is lightweight it and can output TSDoc comments as html.
 API Extractor was also considered but not selected.
 
+🧾 29th October 2026 | [Github PR #1147](https://github.com/clusterio/clusterio/pull/1147)
+
+We dropped TypeDoc as the generated docs were never published and it does not support TypeScript 7.
+TSDoc comments are still used for editor hover text.
+
 
 ## Code Style (General)
 
@@ -157,14 +162,15 @@ Therefore, we selected double quotes as our standard.
 
 ## Code Style (TS / JS / Web)
 
-### ESLint
+### Oxlint
 
-🧾 Time Immemorial  
+🧾 20th October 2026
 
-> Use ESLint for style checking.
+> Use Oxlint for style checking, with formatting rules from `@stylistic/eslint-plugin`.
 
-We needed to maintain a consistent style across all our files.
-Therefore, we utilise the industry-standard ESLint, as it is familiar and highly configurable.
+We needed to maintain a consistent style across all our files and used ESLint for it from the start.
+Oxlint runs the same rules about three times faster, reads ESLint disable comments, and does not depend on the TypeScript compiler API.
+The formatting rules ESLint deprecated run through `@stylistic/eslint-plugin` loaded as an Oxlint JS plugin, so the code style did not change.
 
 
 ### Imports Within `lib` Package
@@ -347,30 +353,31 @@ Transitioning to any other langauge would be too significant an undertaking.
 Initially, we supported multiple languages for plugins, including Rust and Go; however, this approach was quickly abandoned due to its complexity.
 
 
-### Webpack
+### Vite
 
-🧾 Time Immemorial
+🧾 20th October 2026
 
-> Our web stack uses Webpack and associated plugins.
+> Our web stack uses Vite. Plugin web bundles are ES modules that import shared dependencies through an import map.
 
-We required a bundler for our web build, and at the time, Webpack was the standard.
-While we have considered alternatives since, transitioning to another solution would be a significant undertaking.
+We used Webpack with Module Federation for loading plugins from the start, as it was the standard at the time.
+Vite builds the web interface several times faster, its development server updates modules without reloading the page, and plugin bundles no longer depend on one bundler's runtime.
+See [#1127](https://github.com/clusterio/clusterio/issues/1127) for the discussion.
 
 
 ## Supportability
 
 ### Breaking Changes
 
-🧾 Time Immemorial
+🧾 7th October 2026
 
-> We follow symver versioning for breaking changes.
-> In our alpha stage, we allow every alpha to contain breaking changes as long as their are documented and provide migration actions.
-> Once we enter beta, breaking changes will be more restricted.
+> From 2.0.0 onwards, major versions contain breaking changes for end users, while minor versions may contain breaking changes for the plugin API.
+> All breaking changes are documented in the changelog along with migration actions.
 
 We aim to be highly transparent with breaking changes and maintain compatibility with as many existing installations as possible.
-However, as we are currently in the alpha stage, things are unstable, and breaking changes occur frequently.
-As such, we have decided to document all breaking changes and provide migration steps where the changes are non-trivial.
-Once we enter the beta stage, we will implement stricter restrictions on breaking changes.
+During the alpha stage every alpha was allowed to contain breaking changes, as long as they were documented and provided migration actions.
+From 2.0 onwards changes which require action from people running a cluster, such as changes to configs, stored data or the command line, are held back for the next major version.
+Changes to the plugin API may still be made in minor versions.
+Plugin authors should check the changelog when a new minor version is released, non-trivial changes come with a migration guide such as [Migrating Plugins to 2.1](/docs/devs/plugin-migration-to-2.1.md).
 
 
 ### Distribution
@@ -452,11 +459,13 @@ While we aim to increase the number of useful checks performed by CI in the futu
 
 🧾 Time Immemorial
 
-> We do not use any CD actions, and have no plans of implementing them.
+> We publish packages and mods when a maintainer publishes a stable GitHub release.
 
-Unlike CI, we do not find continuous deployment useful at our current stage of the project.
-This is due to the frequent breaking changes merged into the main branch, which we prefer to bundle together as a single version.
-In the future, we may automate the deployment process, but it will always require manual activation.
+Changes merged into the main branch are bundled into releases before publication.
+Publishing a stable GitHub release triggers the [Publish workflow](../.github/workflows/publish.yml), which publishes npm packages and Factorio mods.
+Publishing a prerelease or pushing a tag alone does not trigger publication.
+Running clusters are updated by their operators.
+See the [release workflow](release-workflow.md) for the publication procedure.
 
 
 ### Mocha
@@ -475,5 +484,5 @@ However, we are always looking for a better framework which is worth the effort
 
 > We perform all tests through GitHub actions using Ubuntu latest, using all supported versions of node and all supported versions of factorio.
 
-We perform tests on all versions of NodeJS and Factorio that we support.
+The [current CI workflow](../.github/workflows/node.js.yml) tests selected Node.js major versions and pinned Factorio releases.
 However, we do not conduct tests on all supported operating systems, as the added demand on our testing resources would be significant, and the value it would provide for a cross-platform engine like NodeJS would be limited.

docs/developing-for-clusterio.md

@@ -10,7 +10,9 @@ This document describes the various different types of content that can be creat
     - [event_handler interface](#event_handler-interface)
 - [Communicating with Clusterio](#communicating-with-clusterio)
 - [Clusterio Modules](#clusterio-modules)
+    - [Initialisation and recovery](#initialisation-and-recovery)
 - [Clusterio Lua API](#clusterio-lua-api)
+    - [Compatibility library](#compatibility-library)
 - [Clusterio Plugins](#clusterio-plugins)
 
 
@@ -73,7 +75,7 @@ The following entries are recognized by `add_lib`, all of which are optional:
     Callback called when the callback of `script.on_configuration_changed` is invoked.
 - `events`:
     Table mapping event ids as defined in `defines.events` to callbacks.
-    For example the table `{ [defines.events.on_player_died] = foo }` will call bar with the usual `event` table as argument every time a player dies.
+    For example the table `{ [defines.events.on_player_died] = foo }` will call foo with the usual `event` table as argument every time a player dies.
 - `on_nth_tick`:
     Table mapping the nth tick number to a callback.
     For example the table `{ [30] = bar }` will call bar every 30th tick.
@@ -92,7 +94,7 @@ For example a module could be defined as
 ```lua
 -- example.lua
 local function my_handler(event)
-    local name = game.player[event.player_index].name
+    local name = game.get_player(event.player_index).name
     game.print("It appears that " .. name .. " has died")
 end
 
@@ -176,12 +178,27 @@ This means always declearing your top level variables and functions local and ex
 You can require other files in your module by prefixing your require paths with `modules/your_module_name/`.
 It's also possible to require files from other modules this way too.
 
-The global variables and data stored in the global table is shared by all Clusterio modules as well as the scenario, so it's important that you use unique names.
-It's recommended to prefix the global variables and data in the global table that your module has with the name of your module.
+Persistent state is shared by all save-patched modules and the scenario.
+Use `compat.script_data` to access the version-appropriate persistent table (`global` or `storage`), and keep your state under a unique module name.
+See the [compatibility library](#compatibility-library) below.
+
+
+### Initialisation and recovery
 
 Because modules can be patched into an existing game you cannot rely on the `on_init` callback to be called in Clusterio Modules.
 Nor can you rely on the `on_configuration_changed` callback, as this is not called when level code changes.
-The Clusterio Lua API provides the custom `on_server_startup` event that can be used as a substitute, see the next section.
+The Clusterio Lua API provides `on_server_startup` for setup and migrations, but some Factorio events can run before it.
+In particular, player-leaving, console-command, and configuration-change handlers must not assume startup has initialized their state.
+
+Use an idempotent state accessor in handlers that can run early.
+It should migrate any legacy namespace before creating fresh state, fill missing fields, and return the same state on repeated calls.
+A guard that returns early because the new namespace is absent can silently discard recovery work on an older save.
+See [player_sync's state accessor](../plugins/player_sync/module/get_script_data.lua) for an implementation that handles a renamed namespace and [the module template](../packages/create/templates/common/module/control.lua) for lifecycle setup.
+
+Use `on_load` only to restore local references and other operations permitted by Factorio's load lifecycle; do not create or migrate persistent state there.
+Perform state changes in startup or other events that permit them.
+Recovery mode skips normal Node plugin loading, so save data may still use an older plugin namespace when Lua handlers run.
+Test old and current saves, early events, repeated access, and save/load behavior on the relevant supported Factorio versions.
 
 
 ## Clusterio Lua API
@@ -190,6 +207,29 @@ Clusterio provides a save patched module as well as a regular Factorio mod for i
 This includes tools sending data to plugins, script events to listen for, and an item serialization module.
 
 
+### Compatibility library
+
+Use the compatibility helpers for APIs that differ between supported Factorio versions:
+
+```lua
+-- In a save-patched module:
+local compat = require("modules/clusterio/compat")
+-- In a mod, use require("__clusterio_lib__/compat") instead.
+
+local function encode_example()
+    local script_data = compat.script_data
+    local encoded = compat.table_to_json({ example = true })
+    local decoded = compat.json_to_table(encoded)
+end
+```
+
+`script_data` selects the persistent state table, while the JSON helpers select the available runtime API.
+Access persistent state from the appropriate lifecycle callbacks, after initialisation or loading has made it available.
+The JSON helpers also work before runtime; other compatibility helpers may require `game` to be available.
+Legacy examples using `global` or `game.table_to_json` directly are version-specific.
+See [compat.lua](../packages/host/modules/clusterio/compat.lua) and the [Factorio support policy](decisions.md#factorio) before introducing version checks.
+
+
 ### clusterio_api library
 
 **require path**  
@@ -228,7 +268,8 @@ Event data:
 
 Raised when Clusterio is starting up the server.
 It can be used to initialize clusterio related features in a mod, and as a stand-in for the `on_init` and `on_configuration_changed` event for modules.
-It is invoked on the first tick the server runs after the save has been patched, before most other events.
+It is invoked on the first tick the server runs after the save has been patched, before most other events but not all of them.
+See [initialisation and recovery](#initialisation-and-recovery) for handlers that can run earlier.
 
 Use this event to initialize and/or migrate the data structures you need.
 Keep in mind that both mods and Clusterio modules can switch from any version to any version so it should be able to handle both forwards and backwards migrations gracefully.
@@ -236,7 +277,7 @@ Keep in mind that both mods and Clusterio modules can switch from any version to
 #### clusterio_api.send_json(channel, data)
 
 Send JSON data to Clusterio over the given channel.
-The `data` argument should be table that can be serialized with `game.table_to_json`.
+The `data` argument should be a table that can be serialized with `compat.table_to_json`.
 Clusterio plugins can listen to channels and will receive an event with the data sent here.
 See the [Communicating with Factorio section](writing-plugins.md#communicating-with-factorio) in the Writing Plugins document for more information.
 
@@ -249,7 +290,20 @@ Strings embedded into the tables sent must be valid UTF-8 text.
 
 Parameters:
 - `channel`: string identifying which channel to send it on.
-- `data`: table that can be converted to JSON with game.table_to_json
+- `data`: table that can be converted to JSON with `compat.table_to_json`
+
+#### clusterio_api.send_udp(channel, data)
+
+Send data to Clusterio over the given channel using UDP instead of stdout.
+Clusterio plugins receive it as `udp-channel_name` events, see the [Communicating over UDP section](writing-plugins.md#communicating-over-udp) in the Writing Plugins document.
+Requires `factorio.enable_lua_udp` to be enabled on the instance and Factorio 2.1.10 or later, otherwise the data is silently dropped.
+The port to send to is passed to the module with a script command on startup, so `factorio.enable_script_commands` must be enabled as well.
+
+**Note**: Delivery is not guaranteed and payloads should be kept well below 32 kB.
+
+Parameters:
+- `channel`: string identifying which channel to send it on.
+- `data`: string with the payload to send, any bytes are allowed.
 
 
 ### serialize library
@@ -260,7 +314,7 @@ From a module
 From a mod  
 `local serialize = require("__clusterio_lib__/serialize")`
 
-Serializes inventories and item stacks into a table that in turn can be converted into JSON with `game.table_to_json`.
+Serializes inventories and item stacks into a table that in turn can be converted into JSON with `compat.table_to_json`.
 Properly handles the extra data for most items.
 
 #### serialize.serialize_equipment_grid(LuaEquipmentGrid)

docs/devs/json-serialisable-classes.md

@@ -14,7 +14,7 @@ See the following example code for a hypothetical `Data` class with a single pro
  * A Data class example
  * @alias module:Data
  */
-class Data {
+export class Data {
     /** @type {string} */
     member = "foo";
 
@@ -41,8 +41,6 @@ class Data {
         return json;
     }
 }
-
-module.exports = Data;
 ```
 
 Serialising an instance of `Data` for JSON is as simple as doing `serialised = JSON.stringify(data)` as the `toJSON` method is automatically called by `JSON.stringify` to create a suitable object.
@@ -53,14 +51,13 @@ For example a class holding a data property with an instance of the Data class f
 
 ```js
 // Composed.js
-"use strict";
-const Data = require("./Data");
+import Data from "./Data";
 
 /**
  * Composed data class example
  * @alias module:Data
  */
-class Composed {
+export class Composed {
     /** @type {module:Data|undefined} */
     data;
 
@@ -83,8 +80,6 @@ class Composed {
 
     // toJSON is optional and not needed for this particular class
 }
-
-module.exports = Composed;
 ```
 
 It's easy to create a new instance of Composed by calling `new Composed(new Data("spam"))` and serialising to and from JSON is the same as for Data.

docs/devs/plugin-migration-to-2.0.md

@@ -0,0 +1,333 @@
+# Migrating Plugins to 2.0
+
+This guide covers the changes needed to bring a plugin written for 2.0.0-alpha.27 up to 2.0.0.
+If your plugin targets an older alpha, go through the Breaking Changes sections in the [changelog](/CHANGELOG.md) for the versions in between first.
+Plugins still on alpha 13 should start with the [alpha 14 guide](plugin-migration-to-alpha-14.md).
+
+
+## Versioning from 2.0
+
+From 2.0.0 onwards a major version (3.0.0) contains breaking changes for users running a cluster, while a minor version (2.1.0) may contain breaking changes for the plugin API.
+This means a plugin written for 2.0 is not guaranteed to work with 2.1 without changes.
+Check the Breaking Changes section of the changelog when a new minor version is released and publish an update to your plugin if needed.
+See [Breaking Changes](/docs/decisions.md#breaking-changes) in the decision log.
+
+
+## Convert to ES modules
+
+Clusterio's packages are now ES modules and plugins should be too.
+Add `"type": "module"` to the plugin's `package.json` and replace `require()` and `module.exports` with `import` and `export`.
+
+Keep `"clusterio-plugin"` in the package's `"keywords"` for automatic discovery, and keep `"main"` pointing to the plugin info module (or use the default `index.js`).
+An `"exports"` map is not required for ES modules.
+If you add one, expose `"./package.json": "./package.json"`; otherwise Clusterio cannot discover or load the plugin by its package name.
+Clusterio currently reads the implementation path from `"main"` rather than conditional exports.
+See [Plugin Structure](../writing-plugins.md#plugin-structure) for a compatible package example.
+
+Relative imports must include the full filename with the `.js` extension.
+This also applies in TypeScript, where you import `./messages.js` even though the source file is `messages.ts`.
+Importing a directory no longer resolves to its `index.js`.
+
+**Alpha 27**
+```js
+"use strict";
+const lib = require("@clusterio/lib");
+const messages = require("./messages");
+
+const plugin = {
+    name: "foo_frobber",
+    controllerEntrypoint: "controller",
+    messages: [messages.Frobnicate],
+};
+
+module.exports = {
+    plugin,
+};
+```
+
+**2.0**
+```js
+import * as lib from "@clusterio/lib";
+import * as messages from "./messages.js";
+
+export const plugin = {
+    name: "foo_frobber",
+    controllerEntrypoint: "controller.js",
+    messages: [messages.Frobnicate],
+};
+```
+
+The entrypoint paths in the plugin declaration must include the `.js` extension as well, for TypeScript plugins this means `"./dist/node/controller.js"` instead of `"./dist/node/controller"`.
+
+`__dirname` and `__filename` do not exist in ES modules, use `import.meta.dirname` and `import.meta.filename` instead.
+JSON files are imported with `import packageJson from "./package.json" with { type: "json" };`.
+
+A `webpack.config.js` written with `require()` stops working once the package is an ES module.
+Rename it to `webpack.config.cjs`, webpack-cli finds it under that name without further changes.
+If your `prepare` script passes `--config webpack.config.js` update it to the new name.
+
+TypeScript plugins using `"module": "node16"` in their tsconfig, as the plugin templates do, emit ES modules once `"type": "module"` is set and need no further config changes.
+
+Node.js can still import a CommonJS plugin, but it only finds the `plugin` export if it can detect it from the source, which works for `module.exports = { plugin };` and fails for other forms such as an object literal written in place.
+Converting the plugin avoids the problem.
+
+
+## Replace plugin classes with entrypoint functions
+
+Entrypoints now export a default async function instead of a class deriving from `BaseControllerPlugin`, `BaseHostPlugin`, `BaseInstancePlugin`, `BaseCtlPlugin` or `BaseWebPlugin`.
+The function is called once when the plugin loads and attaches handlers to the hooks it needs.
+Class exports still load, but they are deprecated and a warning is logged for each one.
+See [Defining the plugin entrypoint](/docs/writing-plugins.md#defining-the-plugin-entrypoint) for the details.
+
+**Alpha 27**
+```js
+const { BaseControllerPlugin } = require("@clusterio/controller");
+
+class ControllerPlugin extends BaseControllerPlugin {
+    async init() {
+        this.controller.handle(Frobnicate, this.handleFrobnicate.bind(this));
+    }
+
+    async onSaveData() {
+        await this.saveFrobnicationData();
+    }
+
+    async onInstanceStatusChanged(instance, prev) {
+        this.logger.info(`Instance ${instance.id} went from ${prev} to ${instance.status}`);
+    }
+
+    async handleFrobnicate(request) { /* ... */ }
+}
+
+module.exports = {
+    ControllerPlugin,
+};
+```
+
+**2.0 (JS)**
+```js
+export default async function(context) {
+    const { controller, logger, plugin } = context;
+
+    controller.handle(Frobnicate, async (request) => { /* ... */ });
+
+    controller.hooks.save.attach(plugin.name, async () => {
+        await saveFrobnicationData();
+    });
+
+    controller.hooks.instanceStatusChanged.attach(plugin.name, async (instance, prev) => {
+        logger.info(`Instance ${instance.id} went from ${prev} to ${instance.status}`);
+    });
+}
+```
+
+**2.0 (TS)**
+```ts
+import type { ControllerPluginContext } from "@clusterio/controller";
+
+export default async function(context: ControllerPluginContext) {
+    // Same as above
+}
+```
+
+The code from `init()` goes into the body of the function, and state that lived on `this` becomes local variables.
+The context types are `ControllerPluginContext`, `HostPluginContext`, `InstancePluginContext`, `CtlPluginContext` and `WebPluginContext` from the respective packages.
+
+
+### Keeping a class for state
+
+If the plugin has enough state that a class is still the better fit, give the class a private constructor and an async `static fromContext` that creates it from the context and attaches its hooks.
+`fromContext` can then be the default export of the entrypoint.
+Instances are kept in a static `WeakMap` keyed by the controller, host or instance they belong to, which lets other code look them up without holding a reference to them.
+
+```ts
+import type { Controller, ControllerPluginContext } from "@clusterio/controller";
+import type * as lib from "@clusterio/lib";
+
+export class Frobber {
+    private static instances = new WeakMap<Controller, Frobber>();
+    private frobnications = new Map<string, number>();
+
+    private constructor(
+        private controller: Controller,
+        private logger: lib.Logger,
+    ) { }
+
+    static async fromContext(context: ControllerPluginContext) {
+        const frobber = new Frobber(context.controller, context.logger);
+        await frobber.load();
+        context.controller.hooks.save.attach(context.plugin.name, () => frobber.save());
+        Frobber.instances.set(context.controller, frobber);
+        return frobber;
+    }
+
+    static get(controller: Controller) {
+        return Frobber.instances.get(controller);
+    }
+
+    async load() { /* ... */ }
+    async save() { /* ... */ }
+}
+
+export default Frobber.fromContext;
+```
+
+The loader calls the default export without `this`, so refer to the class by name inside `fromContext` rather than using `this`.
+Don't extend the deprecated base classes for this, they attach `on*` methods to hooks themselves and log a warning.
+
+
+### Method to hook names
+
+Each `on*` method has a hook of the same name without the `on` prefix and with the first letter lowercased, so `onInstanceStatusChanged` becomes `controller.hooks.instanceStatusChanged`.
+The exceptions are:
+
+- `onSaveData` on the controller is `controller.hooks.save`.
+- `addCommands` on ctl plugins is `context.hooks.addCommands`.
+- The `pages`, `loginForms` and `inputComponents` properties of web plugins are the `pages`, `loginForms` and `inputComponents` hooks on `control.hooks`, with handlers that return the value.
+- The `componentExtra` property of web plugins is the `control.hooks.extensionComponents` hook.
+
+Controller hooks are on `controller.hooks`, host hooks on `host.hooks`, instance hooks on `instance.hooks`, and web hooks on `control.hooks`.
+The ctl hooks are passed directly as `context.hooks`.
+
+**Alpha 27**
+```jsx
+class WebPlugin extends BaseWebPlugin {
+    async init() {
+        this.pages = [
+            { path: "/foo_frobber", sidebarName: "Foo Frobber", content: <FrobberPage/> },
+        ];
+    }
+}
+```
+
+**2.0**
+```jsx
+export default async function(context) {
+    const { control, plugin } = context;
+
+    control.hooks.pages.attach(plugin.name, () => [
+        { path: "/foo_frobber", sidebarName: "Foo Frobber", content: <FrobberPage/> },
+    ]);
+}
+```
+
+
+### Replacing other class members
+
+The class properties are on the context object passed to the entrypoint:
+
+- `this.info` is `context.plugin`.
+- `this.logger` is `context.logger`.
+- `this.controller`, `this.host`, `this.instance` and `this.control` are `context.controller`, `context.host`, `context.instance` and `context.control`.
+- `this.metrics` on controller plugins is `context.metrics`.
+- `this.package` on web plugins is `context.package`.
+
+The helper methods of the base classes have the following replacements:
+
+- `this.sendRcon(message, expectEmpty)` is `instance.sendRcon(message, expectEmpty, plugin.name)`.
+  The plugin name is used to label the RCON metrics.
+- `this.broadcastEventToHosts(event)` is `controller.sendTo("allHosts", event)`.
+- `this.sendOrderedRcon(message)` has no replacement.
+  If your plugin needs commands to execute in order, queue them in the plugin and send the next one after the previous one resolves.
+
+
+### Changes to hook behaviour
+
+Handlers attached by different plugins to the same hook now run concurrently, where the `on*` methods were called one plugin at a time.
+Don't rely on another plugin's handler having finished before yours runs.
+
+A handler that throws or takes more than 15 seconds is logged and does not prevent the other handlers from running.
+Each hook accepts one handler per name, attach it under `plugin.name`.
+
+
+## Accessing other plugins
+
+The `plugins` map on `Controller`, `Host` and `Instance` has been removed.
+It's replaced with `loadedPlugins`, a set of the plugin info objects for the plugins that loaded.
+The set holds info objects rather than names, so look the info up in `pluginInfos` by name first to check if a plugin is loaded on the controller or host:
+
+```js
+const info = controller.pluginInfos.find(info => info.name === "other_plugin");
+const loaded = info !== undefined && controller.loadedPlugins.has(info);
+```
+
+In the web interface `control.loadedPlugins` is a map from plugin name to plugin info.
+`control.plugins` is deprecated and only holds plugins still using the class export.
+
+With no plugin class instances, `controller.plugins.get("other_plugin")` has no direct replacement.
+If one plugin needs to call into another, have the other plugin export its class and use the static lookup from [Keeping a class for state](#keeping-a-class-for-state):
+
+```ts
+import { Frobber } from "other_plugin/dist/node/controller.js";
+
+const frobber = Frobber.get(controller);
+if (!frobber) {
+    throw new Error("other_plugin is not loaded");
+}
+```
+
+This only works if both plugins resolve `other_plugin` to the same file on disk, otherwise the lookup goes to a different copy of the class and returns undefined.
+
+For state shared between components of a web plugin, assign it to a module level variable in the entrypoint.
+The web plugin template created by `@clusterio/create` shows this for a subscriber.
+
+
+## Declare permissions on the plugin
+
+Permissions can now be declared under `permissions` in the plugin declaration instead of with `lib.definePermission()`.
+`lib.definePermission()` still works, but don't use both for the same permission name.
+
+For TypeScript plugins `user.checkPermission()`, `account.hasPermission()` and the `permission` of web pages now only accept known permission names.
+Add your permission names to the `Permissions` interface or these calls will fail to compile, even if you keep using `lib.definePermission()`:
+
+```ts
+declare module "@clusterio/lib" {
+    export interface Permissions {
+        "foo_frobber.frobnicate": never;
+    }
+}
+```
+
+The plugin template's `tsconfig.browser.json` now includes `index.ts` so the web build also sees the declaration, add it to the `include` list if your plugin has its own tsconfig for the browser.
+See [Plugin Permissions](/docs/writing-plugins.md#plugin-permissions).
+
+
+## Renamed ctl classes and config
+
+The remaining uses of "control" for clusterioctl were renamed to "ctl":
+
+- `controlConfigFields` in the plugin declaration is `ctlConfigFields`.
+  Fields under the old name are silently ignored.
+- The `ControlConfigFields` interface is `CtlConfigFields`.
+- `lib.ControlConfig` is `lib.CtlConfig`.
+- The `Control` class exported by `@clusterio/ctl` is `Ctl`.
+
+The term "control" is still used in message `src` and `dst` and in config field locations, where it covers both ctl and the web interface.
+
+
+## Static assets in the web interface
+
+`staticRoot` now includes the `static/` prefix.
+Plugins that fetch assets with `${staticRoot}static/...` should drop the `static/` part.
+
+
+## Package dependencies
+
+npm installs peer dependencies by default, so listing `@clusterio/web_ui` under `peerDependencies` installs it everywhere the plugin is installed even though it's only needed to build the web bundle.
+Move `@clusterio/web_ui` to `devDependencies` and mark `@clusterio/controller`, `@clusterio/host` and `@clusterio/ctl` as optional in `peerDependenciesMeta`:
+
+```json
+"peerDependencies": {
+    "@clusterio/controller": "^2.0.0",
+    "@clusterio/host": "^2.0.0",
+    "@clusterio/lib": "^2.0.0"
+},
+"peerDependenciesMeta": {
+    "@clusterio/controller": {
+        "optional": true
+    },
+    "@clusterio/host": {
+        "optional": true
+    }
+}
+```

docs/devs/plugin-migration-to-2.1.md

@@ -0,0 +1,105 @@
+# Migrating Plugins to 2.1
+
+This guide covers the changes needed to bring a plugin written for 2.0 up to 2.1.
+Plugins still on an alpha should start with the [2.0 guide](plugin-migration-to-2.0.md).
+
+
+## Request errors
+
+`RequestError` is gone.
+Errors thrown by request handlers are now received by the requester as the same class, see [Request errors](/docs/writing-plugins.md#request-errors).
+Replace `RequestError` with the class that fits:
+
+- Invalid input: `ValidationError`.
+- Operation disabled by config: `ForbiddenError`.
+- Missing instance, user, save etc.: `NotFoundError`.
+- Instance running, name taken etc.: `ConflictError`.
+- Host not connected, instance not running: `UnavailableError`.
+- Timeouts: `TimeoutError`.
+
+`catch` blocks that check `err instanceof RequestError` should check `ClientError` instead, or the specific class.
+Checks of `err.code` for remote errors can use `instanceof`, e.g. `err instanceof lib.SessionLost`.
+
+The config errors `lib.InvalidValue`, `lib.InvalidField` and `lib.InvalidAccess` were renamed to `lib.InvalidValueError`, `lib.InvalidFieldError` and `lib.InvalidAccessError`.
+
+Errors of classes that are not registered, like a `TypeError` from a bug, are received as `InternalServerError`.
+Plugins that define their own error classes need to list them in `errors` of the plugin declaration.
+
+
+## Build the web module with Vite
+
+The web interface is now built with Vite instead of webpack, and plugin web modules are loaded as ES modules instead of through Module Federation.
+A plugin built with webpack fails to load with the error "Incompatible dist/web/manifest.json, the plugin must be rebuilt with Vite".
+
+Delete `webpack.config.cjs` and add a `vite.config.js` next to `package.json`:
+
+```js
+import { defineConfig } from "vite";
+import { clusterioPlugin } from "@clusterio/web_ui/vite.mjs";
+
+export default defineConfig({
+	plugins: [clusterioPlugin()],
+});
+```
+
+In `package.json` replace `webpack-cli --mode production` in the `prepare` script with `vite build`, and replace the `webpack`, `webpack-cli` and `webpack-merge` dev dependencies with `vite`.
+Add `vite.config.js` to `.npmignore` if you had `webpack.config.js` there.
+
+`clusterioPlugin` exposes `index.ts` (or `index.js`) as `"./"`, `package.json` as `"./package.json"` and `web/index.tsx` (or `.ts`, `.jsx`, `.js`) as `"./web"`.
+These are the same keys the plugin template used with webpack, so `webEntrypoint: "./web"` stays as it is.
+If your webpack config exposed other paths, move the code so it is reachable from `web/index.tsx`.
+
+The web interface provides `@clusterio/lib`, `@clusterio/web_ui`, `@sinclair/typebox`, `antd`, `react`, `react-dom`, `react-router` and `react-router-dom` to plugins.
+These are left as imports in the plugin bundle and resolved by the browser, there is no need to list them as shared.
+Everything else is bundled into the plugin, including `@ant-design/icons`.
+Import `react-dom/client` and `react/jsx-runtime` by those names, other subpaths of the shared packages are bundled as a separate copy.
+
+Imports of `assert`, `buffer`, `events`, `os`, `path`, `process`, `stream`, `util` and `zlib` resolve to the same browser packages as before, provided by `@clusterio/web_ui`.
+
+The `container` property of `WebPluginContext` is now the plugin's ES module namespace, `await container.get("./web")` returns the module instead of a factory function.
+
+`lib.PluginWebpackEnvInfo` is renamed to `lib.PluginWebEnvInfo`.
+
+
+## Renamed lib functions
+
+`lib.safeOutputFile` is renamed to `lib.atomicOverwriteFile`.
+It takes the same arguments.
+
+
+## Host pairing
+
+Host tokens are no longer generated by users.
+A host joins the cluster by having the code it shows when it first starts approved, see [Host pairing](protocol.md#host-pairing) for the HTTP endpoints it uses.
+
+- `HostGenerateTokenRequest` and `HostConfigCreateRequest` are removed.
+  Pending requests are listed with `HostPairingListRequest`, approved with `HostPairingApproveRequest` and rejected with `HostPairingRejectRequest`, and changes to them are sent to subscribers of `HostPairingUpdatesEvent`.
+- `HostRevokeTokensRequest` is replaced by `HostRevokeRequest`, which deletes the host instead of only invalidating its tokens.
+  Instances assigned to the host become unassigned.
+- The permissions `core.host.generate_token`, `core.host.revoke_token` and `core.host.create_config` are removed.
+  Check `core.host.approve` and `core.host.revoke` instead.
+- `clusteriocontroller bootstrap generate-host-token` is removed, scripts that set up hosts can start the host with `--user-token` to approve it with a user token.
+
+Host records are no longer created when a host connects, only by approving it, and the controller rejects hosts it has no record of.
+Revoking a host deletes its record and note.
+Plugins that keep data per host should remove it when the host is deleted.
+On the controller the `update` event of `controller.hosts.records` gives the record with `isDeleted` set to true, and subscribers of `HostUpdatesEvent` receive the host with `isDeleted` set to true.
+A host that is revoked and approved again gets a new id.
+
+
+## Host manager
+
+`controller.hosts` is now a `HostManager`, like `controller.users` is a `UserManager`.
+`get`, `getMutable`, `has` and `values` work as before.
+Everything else on the datastore, like `set`, `delete`, `size` and the `update` event, is on `controller.hosts.records`.
+
+The host manager also signs and checks host tokens and creates and deletes hosts:
+
+- `controller.generateHostToken(hostId)` is now `controller.hosts.signHostToken(hostId)`.
+- `controller.verifyHostToken(token)` is now `controller.hosts.verifyHostToken(token)`.
+  It returns the `HostRecord` instead of the host id.
+- `controller.hostPairing.createHost(name)` is now `controller.hosts.createHost(name)`.
+  It returns the new `HostRecord` instead of `{ hostId, token, name }`, sign a token for it with `signHostToken`.
+- `controller.hosts.revokeHost(hostId, revokedBy)` deletes a host the same way `HostRevokeRequest` does.
+
+User tokens are checked with `controller.users.verifyUserToken(token)`, which returns the user or throws if the token is invalid.

docs/devs/protocol.md

@@ -2,75 +2,132 @@
 
 Clusterio communicates using a simple homebrew message passing protocol based on JSON over WebSocket with limited support for reliable transport of messages.
 The protocol is implemented in [packages/lib/src/link](/packages/lib/src/link) and uses the `ws` library to handle the WebSocket connections on the Node.js side and the native WebSocket API on the browser side.
+The wire schemas are defined in [messages_core.ts](/packages/lib/src/data/messages_core.ts); see the [communication overview](../communication.md) for how links, connectors, and routing fit together.
 
 Two general kinds of messages are supported: events and requests.
 Events are messages sent by one party and received by the other and offer no notification for the sender on whether it was actually received.
 Requests are pairs of request-response messages where one side sends the requests and the other side replies with a response.
 Apart from the handshake used to establish connections the protocol is directionless, and either party can send or receive both requests and events.
 
-Events and requests are defined as instances of the `Request` and `Event` classes, and specify a unique type string, who can send and receive the message, optional forwarding of the message and the format of the data payload as a JSON schema.
-All messages sent and received are validated with JSON schemas to catch potential errors in sending messages and avoid having to write lots of validation code in message handlers.
-
-Messages are sent by calling the `.send()` method of the message instance and passing a `Link` instance to send it over and the data to send.
-For the controller there's a `Link` instance for each host and control connection stored in the `WsServer` class.
-For hosts the `Host` instance is a link to the controller, and each `Instance` instance is an in-memory link to the `Host` instance and has a corresponding `InstanceConnection` link stored on the `Host` instance.
-For ctl and web_ui there's a `Control` instance that acts as the link to the controller.
-
-Messages received invokes message handlers that were registered when the link was brought up.
-These handlers are named after the name of the property the message is stored under with `EventHandler` appended for events and `RequestHandler` appended for requests.
-The handlers are defined on the link class itself for core messages, and on the plugin class in the case of plugin defined messages.
-
 
 ## Connection flow
 
 Clients connect via WebSocket to the `/api/socket` endpoint and upon establishing connection to the server the connection is in the handshake phase and the server will send a `hello` message to the client.
-If the client has no previous session with the server it sends a `register_host` or `register_control` message depending on what kind of client it is to the server.
-If the register is valid then the server will respond with a `ready` message with a session token and the connection has left the handshake phase, otherwise the server will close the connection with a WebSocket close code indicating the kind of failure.
+If the client has no previous session with the server it sends a `registerHost` or `registerControl` message depending on what kind of client it is to the server.
+If the registration is valid, the server responds with a `ready` message containing the client's address, a session token, and session parameters.
+The connection has then left the handshake phase; otherwise the server closes it with a WebSocket close code indicating the kind of failure.
 
 Upon leaving the handshake phase both parties should start sending heartbeat messages with the sequence number of the last received message.
-Messages sent over the link should be stored in a send buffer and only cleared from the send buffer when a heartbeat with a `last_seq` equal or or higher is received or the session is invalidated.
+Routable messages are stored in a send buffer until a heartbeat acknowledges an equal or higher sequence number, or the session ends.
+The heartbeat's top-level `seq` acknowledges receipt by the transport, not successful completion of a message handler.
 
-If the connection goes stale or is unexpectedly closed the client can reastablish the same session by connecting to the server again and sending a `resume` message after received the `hello` from the server.
+If the connection goes stale or is unexpectedly closed, the client can re-establish the same session by connecting again and sending a `resume` message after receiving `hello`.
 If the session resume is successful then the server will respond with a `continue` message and the connection is active again.
-The client should then re-send all messages it has in its send buffer that is greater than the `last_seq` number in the `continue` message.
-Otherwise the server will respond with `invalidate` and the client is expected to drop its send buffer start a new session with `register_host` or `register_control`.
+The client then re-sends buffered messages newer than the `lastSeq` in `continue`.
+The server likewise re-sends messages newer than the `lastSeq` supplied by the client in `resume`.
+Otherwise the server responds with `invalidate`, and the client discards the old send buffer and registers a new session.
+Session expiry, buffer overflow, or process failure can lose pending work; plugins must not treat transport recovery as an application-level exactly-once guarantee.
+The [send-buffer setting](../configuration.md#controllermax_send_buffer_size) controls how much unacknowledged message data the controller retains for a connection.
 
 ![Connection flow](../assets/connection_flow.svg)
 
 
+## Host pairing
+
+The host id and token sent in `registerHost` are requested by the host over HTTP the first time it starts, before it connects.
+Hosts are only added to the controller by approving a pairing request, and `registerHost` is rejected with close code 3000 (Unauthorized) for a host id the controller has no record of.
+Revoking a host deletes its record, so its token stops working and the host has to be approved again the next time it starts, which gives it a new id.
+See [Setting up remote hosts](/README.md#setting-up-remote-hosts) for how this looks to the user.
+
+The endpoints below take and return JSON bodies and are sent with `Cache-Control: no-store`.
+The `POST` endpoints return errors as `{"error": "<message>"}` and respond with 503 while the controller is in recovery mode.
+A request body that is not valid JSON or is larger than 4 kB is rejected with 400 or 413 before it reaches the endpoint, without a JSON body.
+`GET /api/host-pairing/check` also works in recovery mode, and responds to a token that is not valid with a plain 401 without a JSON body.
+A user or host token is sent in either an `Authorization: Bearer <token>` header or an `X-Access-Token` header.
+
+### `POST /api/host-pairing`
+
+Creates a request for a host to join the cluster.
+
+- `name: string` - Name of the host, at most 100 characters after trimming whitespace, without control characters.
+- `version: string` (optional) - Version of the host.
+
+Responds with 202 and `{"requestId": string, "code": string}`.
+The `code` is shown to the user to approve the request with, formatted as six characters like `ABC-DEF`.
+Codes are matched ignoring case and anything that is not a letter or digit, so `abcdef` matches `ABC-DEF`.
+The `requestId` is a secret used to poll for the result, it is never shown to users.
+
+If a user token is sent and the user has the `core.host.approve` permission the host is created right away and the response is 200 with the same body as an approved poll.
+An invalid token gives 401 and a user without the permission gives 403, a token is never ignored to create a pending request instead.
+
+A missing or too long name gives 400.
+Too many pending requests from the same address, or in total as set by [controller.host_pairing_max_pending](/docs/configuration.md#controllerhost_pairing_max_pending), gives 429 with a `Retry-After` header in seconds.
+
+### `POST /api/host-pairing/poll`
+
+- `requestId: string` - Id returned when the request was created.
+
+Responds with 202 and `{"status": "pending"}` while the request is waiting for approval.
+Once approved it responds with 200 and `{"hostId": integer, "token": string, "name": string}`, where `name` is the name the host was approved with, which can differ from the one asked for.
+Rejected requests give 403, and unknown or expired requests give 404.
+The result of an approved or rejected request is only returned once, after which the request is gone.
+
+A pending request expires 30 seconds after it was last polled, and after waiting for the time set by [controller.host_pairing_timeout](/docs/configuration.md#controllerhost_pairing_timeout).
+The host polls every 2 seconds, and makes a new request when the previous one has expired.
+
+### `POST /api/host-pairing/cancel`
+
+- `requestId: string` - Id returned when the request was created.
+
+Removes a pending request, sent by the host when it stops waiting.
+Responds with 204 whether or not the request existed.
+
+### `GET /api/host-pairing/check`
+
+Checks a host token.
+Responds with 200 and `{"valid": true}` if the token is valid and the host it was issued to still exists, and with 401 otherwise.
+A host with a saved token checks it with this when it starts, and requests to join again if the token is not accepted.
+
+
 ## Connector flow
 
 To manage the complexity of connecting, reconnecting, resuming or invalidating dropped sessions the WebSocket connection for a `Link` class is managed by a connector.
-There's three kinds of connectors defined: `WebSocketClientConnector`, `WebSocketServerConnector` and `VirtualConnector`.
+There's three kinds of connectors defined: `WebSocketClientConnector`, `WsServerConnector` and `VirtualConnector`.
 The virtual connector is for in-memory connections and doesn't have any connection state logic.
 
 For the WebSocket connectors there's four states they can exist in:
+
 - `closed` - The connector has just been created or has been explicitly closed.
 - `connecting` (client only) - The connector is in the process of trying to connect to the server.
 - `connected` - The connector is successfully connected.
 - `resuming` - The connection dropped and the connector is in the process of attempting to resume it.
 
 Along with the following events emitted when transition between states:
-- `connect` From `connecting` (client) or `closed` (server) to `connected`
-- `drop` - From `connected` to `resuming`
-- `resume` - From `resuming` to `connected`
-- `invalidate` - From `resuming` to `connecting` or `closed`
-- `close` - From any state to `closed`
+
+- `connect` - A new session is established, moving from `connecting` (client) or `closed` (server) to `connected`.
+- `drop` - The transport was lost but the session is retained for resumption, moving from `connected` to `resuming`.
+- `resume` - The retained session is reconnected and unacknowledged buffered messages are replayed, moving from `resuming` to `connected`.
+- `invalidate` - The previous session cannot be reused, moving from `resuming` to `connecting` (client only); server session expiry emits `close` instead.
+- `close` - The connector is closed, moving from any state to `closed`.
+
+Invalidation or closure rejects pending requests with `SessionLost`.
+Plugins must handle lost sessions, stale state, and application retries where required; see [connection handling](../writing-plugins.md#handling-connection-events) for the plugin hooks and queueing behavior.
 
 ![Conector States](../assets/connector_states.svg)
 
 
 ### WsClientConnector
 
-The client connector will keep trying to establish and mantain a connection after `.connect()` is called on it, stopping only in the case of authentication failure or `.close()`/`.setClosing()` being called.
-Other than that, the logic is pretty straight forward.
+The client connector, named `WebSocketClientConnector` in the source, keeps trying to establish and maintain a connection after `.connect()` is called, stopping on terminal failures such as authentication or policy rejection, or when `.close()`/`.setClosing()` is called.
+For example, policy violation (1008) stops retries, while try-again-later (1013), used for send-buffer overflow, permits reconnecting.
+Connection retries use exponential backoff.
 
 ![WsClientConnector](../assets/WsClientConnector.svg)
 
 
 ### WsServerConnector
 
-The server connector doesn't do the work of connecting or validating the handshake.
+The [server connector](/packages/controller/src/WsServerConnector.ts) doesn't do the work of connecting or validating the handshake.
 Instead it's handed over a WebSocket connection from `WsServer` once there's only the step of sending the final message left to do.
 Because of this there's no `connecting` state, and once a session times out from the `resuming` state it goes directly to closed.
 
@@ -79,19 +136,26 @@ Because of this there's no `connecting` state, and once a session times out from
 
 ## Wire format
 
-All communication in the protocol is done via WebSocket text frames containing a JSON payload with the following properties:
+All communication uses WebSocket text frames containing a JSON object.
+Every frame has a `type` string; the other fields depend on that type.
+Requests, responses, and events carry an integer transport sequence number in `seq`, plus source and destination addresses in `src` and `dst`.
+Message-specific data is carried in `data` when present.
 
-- `seq: integer | null` - The sequence number of the message, can only be null for handshake and heartbeats.
-- `type: string` - The type of message
-- `data: object` - Message data
+An address is `[type, id]`, optionally followed by a request ID: `[type, id, requestId]`.
+Address types are 0 for controller, 1 for host, 2 for instance, 3 for control, and 4 for broadcast.
+The controller's ID is 0; a broadcast address uses its ID to identify the target endpoint type.
+For example, `[2, 123]` addresses instance 123, while `[4, 2]` addresses all instances.
+Broadcast destinations are for events.
 
-Before a connection is established it's in the handshake phase and the `seq` property is `null`.
-The `type` property is used to distinguish which of handshake, heartbeat, events or requests this message is and determines the expected format of the `data` property.
+A request puts its request ID in `src`; the response returns that ID in `dst` so the sender can match it to the pending request.
+This ID is separate from transport `seq`, which is used for acknowledgements and buffering.
 
 
 ### Handshake Messages
 
-The following messages are the only valid messages that can be sent during the handshake phase.
+The following messages are used during the handshake phase.
+Their listed fields belong inside the frame's `data` object, except for `invalidate`, which has no data.
+Property names are case-sensitive.
 
 
 #### `hello`
@@ -102,7 +166,7 @@ Sent by the controller when the WebSocket connection has been opened.
 - `plugins: Object<string, string>` -
     Object mapping plugin names to plugin version for plugins that are loaded on the controller.
 
-#### `register_host`
+#### `registerHost`
 
 Host handshake for establishing a new connection session.
 
@@ -112,7 +176,12 @@ Host handshake for establishing a new connection session.
 - `plugins: Object<string, string>` -
     Object mapping plugin names to plugin version for plugins that are available on the host.
 
-#### `register_control`
+The controller closes the connection with code 3000 (Unauthorized) if the token is invalid, was issued for another id, or if there is no host with this id, see [Host pairing](#host-pairing).
+The host checks its token before connecting and requests to join again if it is not accepted, so this normally only happens to a host that is already running.
+A host that has been rejected exits with code 8, and the run scripts created by the installer do not restart it.
+A host that is revoked while connected is disconnected, is rejected when it tries to connect again, and shuts down.
+
+#### `registerControl`
 
 Control handshake for enstablishing a new connection session.
 
@@ -123,29 +192,32 @@ Control handshake for enstablishing a new connection session.
 
 Handshake for resuming an existing connection session where the connection had dropped unexpectedly.
 
-- `session_token: string` - Session token to resume session with.
-- `last_seq: integer | null` - Last message seq received by the client.
+- `sessionToken: string` - Session token to resume session with.
+- `lastSeq: integer` (optional) - Last transport sequence number received by the client; omitted if none has been received.
 
 #### `invalidate`
 
 Sent by the controller in reply to a resume for a session that cannot be resumed.
-The client should start a new session with a register\_\* message in response.
+The frame is `{"type":"invalidate"}`, without a `data` object.
+The client should start a new session with `registerHost` or `registerControl` in response.
 
 #### `continue`
 
 Sent by the controller to signal resuming the session was successful.
 
-- `last_seq: integer | null` - Last message seq received by the server.
-- `session_timeout: integer` - Session timeout in seconds.
-- `heartbeat_interval: number` - Rate client should send heartbeats at.
+- `lastSeq: integer` (optional) - Last transport sequence number received by the server; omitted if none has been received.
+- `sessionTimeout: number` - Session timeout in seconds.
+- `heartbeatInterval: number` - Interval between heartbeats in seconds.
 
 #### `ready`
 
 Sent by the controller to signal the connection has been established with a new session.
 
-- `session_token: string` - Token to resume the session with.
-- `session_timeout: integer` - Session timeout in seconds.
-- `heartbeat_interval: number` - Rate client should send heartbeats at.
+- `src: Address` - The client's address, used as the source of messages it sends.
+- `sessionToken: string` - Token to resume the session with.
+- `sessionTimeout: number` - Session timeout in seconds.
+- `heartbeatInterval: number` - Interval between heartbeats in seconds.
+- `account` (optional) - Account details for a control client: a `name` and a `roles` array whose entries contain `name`, `id`, and `permissions`.
 
 
 ### Heartbeat message
@@ -158,64 +230,84 @@ The heartbeat should contain the `seq` of the last received message, and receivi
 
 Sent by both the controller and clients at the interval given in the continue/ready messages.
 
-- `last_seq: integer` - Last message seq received over the link.
+- `seq: integer` (optional, top-level) - Last transport sequence number received over the link.
+
+For example, `{"type":"heartbeat","seq":123}` acknowledges messages through sequence 123.
+Before receiving any messages, send `{"type":"heartbeat"}`; there is no `data.last_seq` field.
 
 ### Events
 
-Events are messages send in one direction over the link, that the receiver is expected to act upon, but not make any replies (for that there's [Requests](#requests).
-By convention message types ending in `*_event` are events.
-The data payload of an event consists solely of event specific properties.
+Events are messages sent in one direction that the receiver acts upon without replying; use [requests](#requests) when a response is needed.
+Their wire `type` is `"event"`, with a separate `name` identifying the registered event class.
+Plugin names are prefixed, for example `foo_frobber:SomeEvent`.
+The `data` payload, when present, contains event-specific properties.
 
-See [packages/lib/src/link/messages.ts](/packages/lib/src/link/messages.ts) for the recognized core events and their contents.
-Plugins may defined their own events as well.
+See [packages/lib/src/data/](/packages/lib/src/data/) for core event definitions.
+Plugins may define their own events as well.
 
-#### `*_event`
+#### `event`
 
-- any properties defined by the event type.
+- `seq: integer` - Transport sequence number.
+- `src: Address` - Source address.
+- `dst: Address` - Destination address, including broadcast destinations.
+- `name: string` - Registered event name.
+- `data` (optional) - Payload defined by the event class.
 
 
 ### Requests
 
-Requests are messages which expects a response in return.
-They function a lot like HTTP requests except that both parties of a connection can inniate a request that is expected to be responded to.
-By convention message types ending in `*_request` are requests, and is expected to be replied to with a corresponding `*_response` message.
-If an error occured while processing the request an error response containing an error property in the data payload is sent instead.
+Requests expect a response in return.
+They function like HTTP requests except that either party of a connection can initiate one.
+The wire `type` is `"request"`; a successful reply uses `"response"`, and a failed request uses `"responseError"`.
+The request's `name` identifies the registered class, prefixed with the plugin name for plugin messages, such as `foo_frobber:Frobnicate`.
 
-See [packages/lib/src/link/messages.ts](/packages/lib/src/link/messages.ts) for the recognized core requests and their contents.
+See [packages/lib/src/data/](/packages/lib/src/data/) for core request definitions.
 Plugins may define their own requests as well.
 
-#### `*_request`
+#### `request`
 
-- any properties defined by the request type.
+- `seq: integer` - Transport sequence number.
+- `src: Address` - Source address, including the request ID.
+- `dst: Address` - Destination address.
+- `name: string` - Registered request name.
+- `data` (optional) - Payload defined by the request class.
 
-#### `*_response` success
+#### `response` success
 
-- `seq: integer` - The seq number of the request message.
-- any additional properties defined by the request type.
+- `seq: integer` - This response's transport sequence number, not the request's sequence number.
+- `src: Address` - Responding endpoint.
+- `dst: Address` - Requester's address, including the original request ID.
+- `data` (optional) - Payload defined by the request class's `Response` definition.
 
-#### `*_response` error
+#### `responseError`
 
-- `seq: integer` - The seq number of the request message.
-- `error: string` - Human readable text message describing the error.
+- `seq: integer` - This error response's transport sequence number.
+- `src: Address` - Responding endpoint.
+- `dst: Address` - Requester's address, including the original request ID.
+- `data.message: string` - Human-readable error description.
+- `data.code: string` (optional) - Registered name of the error class, `<plugin>:<class>` for plugin errors.
+  Missing or unknown names are received as `InternalServerError`.
+- `data.stack: string` (optional) - Error stack.
 
 
 ### Graceful Disconnect
 
-To ensure no data is lost when closing the link it's important to send a prepare disconnect request and wait for it to complete before closing the WebSocket.
-Either party of the link can send this request and the party sending the request should be the one that initates the close of the WebSocket.
+To reduce data loss when closing a link, ask the peer to prepare and wait for it to finish before closing the WebSocket.
+Either party can initiate the disconnect and is then responsible for closing the socket.
+These are connector control frames, not registered request/response classes; forced closure and process crashes can still lose work.
 
-#### `prepare_disconnect_request`
+#### `disconnect` with `data: "prepare"`
 
-Request graceful disconnect of the connection.
+The frame `{"type":"disconnect","data":"prepare"}` requests a graceful disconnect.
 The receiving party should stop tasks that send events and requests over the link and wait for pending requests it has over the link to complete, but it should not stop responding to requests sent to it.
 Only after this process is done should the response be sent.
 
-#### `prepare_disconnect_response`
+#### `disconnect` with `data: "ready"`
 
-Signals the preparation for disconnect is complete and that the connection can be closed.
-The party that initiatied the prepare disconnect request may still send other requests/events over the link to finish its part of the disconnection proceedure.
-
-If the error response variant is received it should be logged if possible and treated as a success.
+The frame `{"type":"disconnect","data":"ready"}` signals that preparation is complete and the connection can be closed.
+When using `WebSocketBaseConnector.disconnect()`, the initiator must stop producing new work and await its own `Link.prepareDisconnect()` before calling `disconnect()`.
+The connector closes as soon as the peer sends `ready` or the timeout expires; it does not drain the initiator's pending requests itself.
+There is no error-response variant; the connector also has a timeout so an unresponsive peer cannot block shutdown indefinitely.
 
 
 ### Example handshake
@@ -224,10 +316,10 @@ Server hello after opening the WebSocket.
 
 ```json
 {
-    "seq": null,
     "type": "hello",
     "data": {
-        "version": "2.0.0"
+        "version": "2.0.0",
+        "plugins": {}
     }
 }
 ```
@@ -236,12 +328,12 @@ Host registering a new connection session.
 
 ```json
 {
-    "seq": null,
-    "type": "register_host",
+    "type": "registerHost",
     "data": {
         "token": "xyzabc123",
         "version": "2.0.0",
-        "id": 123
+        "id": 123,
+        "plugins": {}
     }
 }
 ```
@@ -250,12 +342,12 @@ Controller reply signaling the session is established and ready.
 
 ```json
 {
-    "seq": null,
     "type": "ready",
     "data": {
-        "session_token": "xyz.azy.bzy",
-        "session_timeout": 60,
-        "heartbeat_interval": 15
+        "src": [1, 123],
+        "sessionToken": "xyz.azy.bzy",
+        "sessionTimeout": 60,
+        "heartbeatInterval": 15
     }
 }
 ```

docs/how-it-works.md

@@ -1,3 +1,25 @@
+# How Clusterio works
+
+Clusterio runs a group of Factorio servers as a cluster, managed through a web interface or the `clusterioctl` command-line client.
+The controller is the central point of contact: clients connect to it to manage the cluster, and hosts connect to it to receive commands and exchange messages.
+Each host manages its local Factorio server processes, with each server belonging to an instance.
+
+
+## System overview
+
+The diagram shows one possible layout with two physical servers, each running a host and three Factorio servers.
+The controller shares a machine with one host in this example, but it can run on a separate machine.
+The number of hosts and instances can vary with the needs of the cluster.
+
+![Clusterio system diagram showing a controller, web and command-line clients, and two hosts managing three Factorio servers each](assets/clusterio_2.0_block_diagram.svg)
+
+The blue arrows point from the hosts and clients to the controller they connect to; messages can travel in both directions over those WebSocket connections.
+The orange lines connect each host to the Factorio processes it manages.
+Open the [full-size diagram](assets/clusterio_2.0_block_diagram.svg) to zoom in, or use the [Draw.io source](assets/clusterio_2.0_block_diagram.drawio) to edit it.
+
+For how messages are handled and routed between these components, see the [communication guide](communication.md).
+
+
 ## Save Patching
 
 In order to efficiently get data in and out of running Factorio servers and to provide custom interfaces Clusterio uses save patching<sup>[1]</sup> to add code to the game.
@@ -5,6 +27,9 @@ The save patching is based on the built in [event_handler](https://github.com/wu
 Mods on the other hand work without modifications.
 
 This can be disabled with the `factorio.enable_save_patching` config on a per instance basis, however disabling it means that modules are not loaded into the game and most plugins will not function.
+A save that was patched before has its modules removed again when it's started with save patching disabled.
+To use the modules outside of Clusterio the `npx clusteriohost create-scenario` command creates a scenario with the modules patched into it.
+Note that the IPC between the game and the host is not available outside of Clusterio, so modules that depend on it will not work as expected in such a scenario.
 
 <sub>1: Before version 2.0 of Clusterio this was done at runtime with a patcher called Hotpatch, but due to the difficulty in supporting run time patching and the lack of documentation it was replace it with save patching instead.</sub>
 

docs/managing-a-cluster.md

@@ -5,7 +5,7 @@ This document uses the shorthand `ctl> foo` to indicate `npx clusterioctl foo` s
 Mandatory parameters are shown in `<angles bracket>` and optional pameters are in `[square brackets]`.
 
 Before `clusterioctl` can be used it needs to be configured for the cluster it will connect to.
-The easiest way to do this is to run `npx clusteriocontroller bootstrap create-ctl-config <username>` on the controller, which creates the necessary `config-control.json` for managing the cluster as the given user.
+The easiest way to do this is to run `npx clusteriocontroller bootstrap create-ctl-config <username>` on the controller, which creates the necessary `config-ctl.json` for managing the cluster as the given user.
 
 
 ## Hosts
@@ -16,23 +16,47 @@ The easiest way to do this is to run `npx clusteriocontroller bootstrap create-c
 
 Lists all hosts.
 
-### Generate token
+Hosts are added to the cluster by running the installer on the computer the host runs on and approving the code it shows, see [Setting up remote hosts](/README.md#setting-up-remote-hosts).
+Listing, approving and rejecting hosts waiting for approval needs the `core.host.approve` permission.
 
-    ctl> host generate-token [--id <host id>]
+### List pending hosts
 
-Generate a token for a host. `--id` is the host id.
+    ctl> host pending
 
-### Create config
+Lists hosts waiting for approval with the code they show, the name they asked for, the address they connected from and how long they have been waiting.
+A request goes away when its host stops waiting, and after the time set by `controller.host_pairing_timeout`, an hour by default, after which the host asks again with a new code.
 
-    ctl> host create-config [--id <host id>] [--name <host name>] [--generate-token <bool>] [--output <path to output>]
+### Approve host
 
-Create a host config. `--id` id the host id. `--name` is the host name. `--generate-token` decides whether to also generate a token, defaulting to `0`. `--output` is the filename for the output of the config; Default is "config-host.json", "-" for stdout.
+    ctl> host approve <code> [--name <host name>]
+
+Approves the host showing the code and prints the id of the new host.
+The code is not case sensitive and the dash can be left out.
+`--name` gives the host a different name than the one it asked for.
+Approving gives the host full access to the cluster, check with `host pending` that the name and address match the computer you are setting up.
+
+### Reject host
+
+    ctl> host reject <code>
+
+Rejects the host showing the code, the host then exits with an error.
+
+### Revoke host
+
+    ctl> host revoke <host>
+
+Specify the host by name or ID.
+Removes the host from the cluster, disconnects it and makes its token stop working.
+Instances assigned to the host become unassigned, their files stay on the computer.
+Requires the `core.host.revoke` permission.
+To add the computer back to the cluster, start the host again and approve it.
 
 ### Update Clusterio
 
-    ctl> host update [--id <host id>] [--name <host name>] [--restart]
+    ctl> host update <host> [--all] [--restart]
 
-If remote updates are enabled on the host, this will attempt to update `@clusterio/host` on the machine. Changes will not be applied until the host is restarted. If the `--restart` flag is provided, the host will automatically restart once the update is complete.
+Specify the host by name or ID.
+If remote updates are enabled on the host, this will attempt to update `@clusterio/host` on the machine. Add `--all` to also update all npm-installed plugins. Changes will not be applied until the host is restarted. If the `--restart` flag is provided, the host will automatically restart once the update is complete.
 
 Remote updates are enabled by default but can be disabled on a per-machine basis at the owner's discretion. For security reasons, this configuration setting cannot be changed remotely. To modify it, run the following command locally while the host is offline:
 
@@ -40,22 +64,31 @@ Remote updates are enabled by default but can be disabled on a per-machine basis
 
 The controller also supports remote updates, following the same logic. The corresponding commands are:
 
-    ctl> controller update [--restart]
+    ctl> controller update [--all] [--restart]
     controller> config set controller.allow_remote_updates true/false
 
+### Mark restart required
+
+    ctl> host mark-restart-required <host>
+
+Marks the host as requiring a restart, the same way a plugin update does. Use it after installing or changing a plugin by other means than `host plugin install`, such as a plugin checked out into `external_plugins`. The mark shows up in the web interface on the next system metrics poll. The controller has the same command:
+
+    ctl> controller mark-restart-required
+
 ## Instances
 
 ### List Instances
 
-    ctl> instance list
+    ctl> instance list [--templates]
 
 List instances.
+Templates are only listed if `--templates` is passed.
 
 ### Create instance
 
-    ctl> instance create <name> [--id <instance id>]
+    ctl> instance create <name> [--id <instance id>] [--from <instance id>] [--template <instance>] [--as-template]
 
-Create a new instance. `name` is the instance name. `--id` is the optional id.
+Create a new instance. `name` is the instance name. `--id` is the optional id. `--from` copies the config of an existing instance. `--template` makes the new instance inherit all config values from the given template. `--as-template` creates the instance as a template, see `instance.is_template` in the [configuration docs](configuration.md). Use `--as-template --from <instance>` to make a template out of an existing instance.
 
 ### Kill instance
 
@@ -65,6 +98,12 @@ Terminates the running Factorio server without giving it a chance to save or cle
 
 Note: This may cause loss of data.
 
+### Save game
+
+    ctl> instance save-game <name>
+
+Saves the running game of the instance to the save it was started from and waits for the save to finish.
+
 ### Extract players from instance
 
     ctl> instance extract-players <name>
@@ -82,7 +121,7 @@ Most notably Clusterio records wall clock time while the save time is recorded i
 
     ctl> instance config list <instance>
 
-List config values for an instance. `instance` is the instance whose config values to list.
+List config values for an instance. `instance` is the instance whose config values to list. Values inherited from a template are marked with `(inherited)`, object fields also list the properties set on the instance.
 
 #### Set config value
 
@@ -94,15 +133,21 @@ Set field in instance config. `instance` is instance to set. `field` is field to
 
 To be written.
 
+#### Inherit config value
+
+    ctl> instance config inherit <instance> <field> [prop]
+
+Make a field in the instance config take its value from the template again, undoing a previous `set`. `instance` is the instance to update, `field` is the field to inherit, `prop` limits it to one property of an object field.
+
 #### Edit instance config
 
     ctl> instance config edit <instance> [editor]
 
-Edit instance config in a text editor. Once file is saved and editor has been exited, config values will be read back in. `instance` is the instance to edit, `editor` is the editor to use. If `editor` is not given, clusterioctl will read from the `EDITOR` or `VISUAL` enviroment variables.
+Edit instance config in a text editor. Once file is saved and editor has been exited, changed config values will be read back in. `instance` is the instance to edit, `editor` is the editor to use. If `editor` is not given, clusterioctl will read from the `EDITOR` or `VISUAL` enviroment variables.
 
 ### Assign instance to host
 
-    ctl> instace assign <instance> [host]
+    ctl> instance assign <instance> [host]
 
 Assigns instance to host. `instance` is instance to assign, `host` is host to assign to. If `host` is not provided, instance will be unassigned.
 
@@ -216,6 +261,38 @@ Note: If the player joins the cluster again a new account will be made for them
 To be written.
 
 
+## Notes
+
+Free text notes can be attached to hosts, instances, users, roles, mod packs, mods and saves.
+They are stored on the controller and shown to everyone with access to the resource in the web interface, and can for example be used to record who runs a host or what an instance is meant for.
+
+The web interface renders notes as Markdown.
+A mention of the form `@<type>/<id>` becomes a link to that resource showing its name, for example `@instance/778528005` or `@user/cooldude2606`.
+This works for hosts, instances, users, roles and mod packs, and the id is shown if the name is not available.
+The note itself stores the mention as written.
+
+### List notes
+
+    ctl> note list [--type <type>]
+
+Lists all notes, optionally limited to one resource type.
+
+### Set note
+
+    ctl> note set <type> <id> <content>
+
+Sets the note of a resource.
+The type is one of host, instance, user, role, mod_pack, mod or save.
+The id is the numeric id for hosts, instances, roles and mod packs, the lower case name for users, `<name>_<version>` for mods and `<instance id>/<file name>` for saves.
+
+### Delete note
+
+    ctl> note delete <type> <id>
+
+Removes the note of a resource.
+Notes are also removed when the resource they are attached to is deleted.
+
+
 ## Plugins (Local)
 
 To be written.
@@ -223,9 +300,11 @@ To be written.
 
 ## Plugins (Remote)
 
-By default, remote updates are enabled unless you selected "no" during installation.
-Remote updates allow ctl and the web UI to update plugins on machines within the cluster.
-However, remote installations are disabled by default to prevent the risk of arbitrary code execution through the installation of malicious npm packages onto the machine. See below if you wish to enable this feature.
+The installer asks "Allow remote updates and plugin installs from the web interface?" and the answer sets `allow_remote_updates`, `allow_plugin_updates` and `allow_plugin_install` together on that machine, pass `--remote-npm` or `--no-remote-npm` to answer it from the command line.
+Remote updates allow ctl and the web UI to update Clusterio and plugins on machines within the cluster.
+Remote installs allow them to install any package from npm onto the machine, which is a risk of arbitrary code execution through malicious npm packages, so only allow them if you trust everyone with access to install plugins.
+In a config created without the installer remote updates are enabled and remote installs are disabled by default.
+See below for changing these settings after installing.
 
 ### List
 
@@ -236,17 +315,49 @@ This command lists all plugins currently known to the remote. Newly installed pl
 
 ### Update
 
-    ctl> controller plugin update <name> [--restart]
-    ctl> host plugin update <host> <name> [--restart]
+    ctl> controller plugin update <name>[@<version>] [--restart]
+    ctl> host plugin update <host> <name>[@<version>] [--restart]
 
-If remote plugin updates are enabled on the remote, this will execute `npm update --save <name>`. Changes will not be applied until the remote is restarted. If the `--restart` flag is provided, the remote will automatically restart once the update is complete.
+If remote plugin updates are enabled on the remote, this will execute `npm update --save <name>`, which stays within the version range saved in the remote's `package.json`.
+To update to a specific version, including one outside that range, pass it as `<name>@<version>`, for example `@clusterio/plugin-example@2.1.0`.
+The version must be published on npm, and the remote then executes `npm install --save <name>@<version>`.
+The plugin must already be installed on the remote, and only remote plugin updates need to be enabled.
+Changes will not be applied until the remote is restarted.
+If the `--restart` flag is provided, the remote will automatically restart once the update is complete.
+
+### Update All
+
+    ctl> controller update --all [--restart]
+    ctl> host update <host> --all [--restart]
+
+Updates the Clusterio package and all plugins installed from npm in a single `npm update --save` command. Updating everything at once avoids ending up with multiple versions of `@clusterio/lib` in the installation. Requires both remote updates and remote plugin updates to be enabled on the remote.
 
 ### Install
 
-    ctl> controller plugin install <name> [--restart]
-    ctl> host plugin install <host> <name> [--restart]
+    ctl> controller plugin install <name>[@<version>] [--restart]
+    ctl> host plugin install <host> <name>[@<version>] [--restart]
+
+If remote plugin installs are enabled on the remote, this will execute `npm install --save <name>`.
+Pass `<name>@<version>` to install a specific version, for example to match the version used by the rest of the cluster.
+The package, and the version if given, must be published on npm.
+Changes will not be applied until the remote is restarted.
+If the `--restart` flag is provided, the remote will automatically restart once the update is complete.
+
+### Search
+
+    ctl> controller plugin search [query] [--page <n>] [--page-size <n>]
+
+Searches the npm registry for packages tagged with the clusterio-plugin keyword.
+The search is done by the controller and does not require remote installs to be enabled.
+The web UI has a plugin browser on the plugins page that uses the same search.
+
+### Concurrent Operations
+
+Only one npm operation runs at a time on a machine.
+A standalone controller and host share their working directory, so the operation holds the `npm-operation.lock` file there while npm runs.
+Other installs and updates on the same machine or installation are rejected with "Another package operation is already in progress on this machine" until it finishes.
+A lock file left behind by a process that is no longer running is removed automatically.
 
-If remote plugin installs are enabled on the remote, this will execute `npm install --save <name>`. Changes will not be applied until the remote is restarted. If the `--restart` flag is provided, the remote will automatically restart once the update is complete.
 
 ### Enable/Disable Updates
 
@@ -261,3 +372,29 @@ Remote updates are enabled by default but can be disabled on a per-machine basis
     controller> config set controller.allow_plugin_install true/false
 
 Remote installs are disabled by default but can be enabled on a per-machine basis at the owner's discretion. For security reasons, this configuration setting cannot be changed remotely. To modify it, run the above commands locally while the remote is offline.
+
+
+## Prometheus Metrics
+
+The controller exports metrics for the whole cluster on the `/metrics` endpoint.
+Fetching it requires a token for a user with the `core.controller.metrics` permission, sent either as an `Authorization: Bearer <token>` header or as an `X-Access-Token` header.
+Requests without a valid token get a 401 response and requests for users lacking the permission get a 403 response.
+
+Create a role with just this permission, a user to hold it, and generate a token for that user.
+Give the user a name that is not a valid Factorio player name, such as one starting with `#`, so a player joining the cluster can never claim the account and its token:
+
+    ctl> role create Prometheus --permissions core.controller.metrics
+    ctl> user create #prometheus
+    ctl> user set-roles #prometheus Prometheus
+    $ npx clusteriocontroller bootstrap generate-user-token '#prometheus'
+
+Then pass the token in the scrape job for the controller in `prometheus.yml`:
+
+    scrape_configs:
+      - job_name: clusterio
+        authorization:
+          credentials: <token>
+        static_configs:
+          - targets: ["localhost:8080"]
+
+Concurrent scrapes share a single round of metrics gathering from the hosts, so multiple scrapers polling the controller do not multiply the load on the hosts.

docs/migrating-from-2.0.0-alpha.13.md

@@ -1,46 +0,0 @@
-# Migrating from 2.0.0-alpha.13 to 2.0.0-alpha.14
-
-Alpha 14 comes with significant breaking changes for existing clusters, most notably the rename of master and slave to controller and host.
-Please study the entire migration guide carefully before attempting to update an existing cluster.
-
-## Before updating
-
-If you're using mods you need to create mod pack string for the mod configurations you're currently running.
-You can do this by running the follow RCON command on an instance that is currently running the mod configuration you want to use (you can also run this command in single player and find the string printed in Factorio's [Log file](https://wiki.factorio.com/Log_file)):
-
-    /sc local m={name="pack",description="",factorio_version=game.active_mods.base,mods={},settings={startup={},["runtime-global"]={},["runtime-per-user"]={}}} for n,v in pairs(game.active_mods) do table.insert(m.mods,{name=n,enabled=true,version=v}) end local function set(s,c) for n,v in pairs(s) do m.settings[c][n]=v end end set(settings.startup,"startup") set(settings.global,"runtime-global") if game.player then set(game.player.mod_settings,"runtime-per-user") else set(settings.player,"runtime-per-user") end local e=game.encode_string(game.table_to_json(m)) log(e) rcon.print(e)
-
-If you for some reason want to run this function in 2.0+, use the following command:
-
-    /sc local a={name="pack",description="",factorio_version=script.active_mods.base,mods={},settings={startup={},["runtime-global"]={},["runtime-per-user"]={}}}for b,c in pairs(script.active_mods)do table.insert(a.mods,{name=b,enabled=true,version=c})end;local function d(e,f)for b,c in pairs(e)do a.settings[f][b]=c end end;d(settings.startup,"startup")d(settings.global,"runtime-global")if game.player then d(game.player.mod_settings,"runtime-per-user")else d(settings.player,"runtime-per-user")end;local g=helpers.encode_string(helpers.table_to_json(a))log(g)rcon.print(g)
-
-This should produce a [Mod Pack String](https://forums.factorio.com/viewtopic.php?f=96&t=103578) which you need to copy and paste somewhere to keep it for later.
-Mod Pack strings looks something like this:
-
-    eNqFketuwyAMhd/Fv0OUVpW25lWmqSLESdAIRNh0l4h3n9mlitZt5QdCx/7so8MKXs8ILSzaPEEFPZKJdmEbvIgiDNpwiDaczhjpU93Vu/r+Tmpz6Anah/V7RqcJRUavO4c9tBwTVnAF5upCGJeIsYx3tvsPbQTdb0lKHYlnPJHY0+ONvcdjvW8gP1ZAyGz9KL5XINaR0yLPXEFMnu2ManSh0+6j/GOFitqXG4mjNSUidVm5wlm7JMYG7Qhl3BX8FjyqZ9vztOk+NM2fvRPaceLbzbN+UejQFFOWXzfArvk6v2HWD9ZLv5JfxA1UwsubPBaMKhHGklLO76vAwfQ=
-
-If you have multiple mod configuration create a mod pack string for each and note them down.
-
-Double check that you are on a supported version of Node.js by running `node --version`, the version should be v18 or later, if not you will need to update Node.js before continuing.
-
-
-## Migrate installations
-
-**Note:** Check that plugins you are using have updates avaialble for alpha 14 before attempting to update, if they do not either wait for the plugin to be updated or uninstall the plugin from all places it is installed on first.
-
-Shutdown all slaves and the master server and then migrate each installations by running the following command:
-
-    npm exec @clusterio/create -y -- --migrate-rename --log-level=verbose
-
-This will convert the existing installation's usage of the master and slave names in packages, configs, database and logs to the new controller and host terms and update the installed packages.
-
-If you're using systemd then copy the generated clusteriocontroller.service and/or clusteriohost.service files from the systemd folder to /etc/systemd/system/ and remove the old clusteriomaster.service and clusterioslave.service files.
-
-Once the installations have been migrated start up the controller and hosts again.
-
-
-## Post installation
-
-Import the Mod Pack strings that was created beforehand on the controller and upload the mods needed by those mod packs to the controller.
-You can assign a default mod pack in the controller config which instances use by default or set the mod pack on the per instance basis in the instance config.
-Once you have assigned a mod pack to an instance run a data export on the instance in order to properly populate the mod settings in the mod and get item icons and item names resolved in the web interface.

docs/pr-review-guide.md

@@ -0,0 +1,83 @@
+# Reviewing pull requests
+
+Review observable behavior across the whole PR, including callers, consumers, and lifecycle transitions.
+Reading every changed file and passing tests do not establish that those behaviors were covered.
+Use [contributing](contributing.md) for setup and validation commands.
+
+
+## Establish the scope
+
+- Record the PR's base and current head; preserve unrelated work with an isolated checkout when needed.
+- Read the requirements and relevant documentation at the reviewed revision.
+  Distinguish intended policy from observed behavior when they disagree.
+- Map each affected behavior from input through authorization, routing, state changes, and its consumers.
+  On a follow-up, verify the fixes and reassess the whole PR's affected behavior; explicitly label a deliberately narrower review.
+- Compare the PR base, previously reviewed head, and current head when attributing a follow-up finding.
+  Distinguish a new regression, an incomplete fix, and a previously missed defect.
+  Existing producer behavior can become unsafe through a new consumer; reject a finding as pre-existing only after comparing the complete failing path.
+- Trace the actual entrypoint and earlier guards before declaring a failure reachable.
+  Check supported configurations and compatibility policy; a merged revision or earlier clean review is not proof of correctness.
+
+
+## Surface overlapping responsibilities
+
+- For substantial new or replaced functionality, check whether existing code or test helpers already serve the same responsibility, including outside the changed files.
+  Search by behavior, then verify the implementations and their callers; nearby code is not necessarily the preferred shared implementation.
+- Compare contracts, callers, and constraints, not just names or similar code.
+  Distinguish shared behavior and general correctness requirements from differences that may justify separate implementations.
+- Surface significant overlap to the developer with source locations for both implementations, the duplicated responsibility, its consequences, and any legitimate differences.
+  Explain maintenance or consistency risks without presenting them as reproduced runtime defects.
+- Recommend an approach based on the evidence, including alternatives, tradeoffs, and affected callers or tests.
+  Leave the architectural decision to the developer unless already authorized; do not silently consolidate the implementations or dismiss the overlap as intentional.
+- Recheck after substantial fixes, especially when shared functionality is replaced, bypassed, or overridden.
+  Keep unresolved design questions in the candidate ledger and final report, and record the developer's decision when provided.
+
+
+## Exercise the boundaries
+
+- Write a small matrix of relevant states and transitions before probing.
+  Distinguish intended state, eligibility, and observed state, and vary the conditions that can make them differ.
+  Exercise transitions through the components that produce and consume the state; constructing the final state alone does not verify the transition.
+- Check adverse paths as well as success: failure, retry, removal, restart, reconnect, and overlapping operations where applicable.
+  Select relevant cases from these recurring review gaps:
+
+  | Boundary | Questions to check |
+  | --- | --- |
+  | Data contracts | Does real serializer output satisfy every consumer, including Lua restoration and inspection UI? Check omitted, empty, partial, malformed, reserved, and numeric-limit values before durable mutation. |
+  | State and identity | Do delayed reads and mutation completions still belong to the selected entity? Do disabled components retain their local state? Can an identifier or generation be reused after recovery? |
+  | Persistence and synchronization | Do save/reload, migration, deletion, and resubscription preserve versions and tombstones? Compare full snapshots, deltas, and optimized paths with ordinary transfers. |
+  | Ownership and errors | Can concurrent work remove another operation's lock, handle, or cache? Check synchronous throws, early promise rejection, partial mutation, and cleanup after each failure. |
+  | Protocol and compatibility | What does the receiver do with the message, close code, or acknowledgement? Check early startup, mixed versions, and supported older APIs. |
+  | Distribution | Do generated validators, browser bundles, and installed packages behave like the source checkout? Check actual export maps and plugin discovery. |
+
+- Use focused reproductions with concrete inputs and expected versus actual results.
+  Keep the logic under review real: stubbing permissions, effects, or state transitions can erase the defect being investigated.
+  Check that the harness reaches the intended path; compare a normal case and the base revision where practical.
+  Identify assumptions introduced by fixtures, caches, shared identities, or execution order, and vary those relevant to the change.
+- Control concurrency with explicit gates and assertions about ownership and completion, rather than timing alone.
+  Check both that invalid actions are prevented and that valid work eventually makes progress.
+  Vary delays and completion order, including changes to an action's preconditions between initiation and execution.
+
+
+## Account for every candidate
+
+- Keep a compact ledger of candidate issues and uncovered scenarios throughout the review.
+  Give each candidate a disposition: reported, rejected with evidence, or unresolved with the next check needed.
+- Before finishing, compare probe outputs with the final findings.
+  A reproduced anomaly must not disappear just because several other issues were already found.
+- Carry unresolved candidates and coverage gaps into handoffs and context summaries, alongside published findings.
+  For each finding, identify the trigger, consequence, source location, and supporting evidence.
+  Reconcile the previous ledger at every follow-up; an unconfirmed candidate remains unresolved until evidence rejects it or confirms it.
+  Name remaining material gaps in the final report even when other findings already block merging.
+
+
+## Report and follow up
+
+- Separate source inspection, focused probes, full suites, hosted CI, browser checks, and Factorio runtime evidence.
+  Record failures, skips, and unavailable validation; investigate external-service failures before attributing them to the PR.
+- Reproduce the original failure when checking a fix, including adjacent cases exposed by the change.
+  A fix for one malformed field calls for checking the remaining consumer requirements, not just that example.
+  Limit conclusions to the scenarios exercised, and state which relevant assumptions remain unverified.
+  Resolve a review thread only when its exact concern is addressed.
+- When authorized to publish, refresh the head and existing comments, avoid duplicates, and anchor feedback to the reviewed code.
+  Read back each posted inline comment to verify its body and location.

docs/release-workflow.md

@@ -5,14 +5,27 @@
 - CHANGELOG.md in the repository root
 - The changelog.txt file in mod directories
 
-Pull requests will usually have suggestions for changelog entries.
+Pull requests will usually have suggestions for changelog entries. These can be automatically parsed and formatted by running `node scripts/pr_to_changelog.mts`, though you will have to manually sort through which should go in the changelog in the repository root and which should go in the changelogs in mod directories.
+
+If the script fails due to GitHub's 60/hour public access rate limit, you can set the `GH_TOKEN` environment variable to a fine-grained personal access token which has a much higher rate limits.
 
 ## Packages
 
+The [Publish workflow](../.github/workflows/publish.yml) publishes npm packages and Lua mods on GitHub's `release: released` event for a stable release.
+Publishing a prerelease does not trigger it; see [GitHub's release event documentation](https://docs.github.com/en/actions/reference/workflows-and-actions/events-that-trigger-workflows#release).
+The npm release includes the packages under `packages/` and the six core plugins under `plugins/`.
+Community plugins hosted in separate repositories have independent versions and releases.
+For this workflow, first merge the changelog and package version updates into `master`, then create and push the release tag on that merged commit.
+Create a draft GitHub release for the existing tag and use the GitHub Release Markdown from `scripts/pr_to_changelog.mts` as its notes.
+Publishing the draft as a stable release triggers the workflow; pushing a tag alone does not.
+Preparing a release PR, pushing a tag, and publishing a release or packages are separate actions; obtain authorization for the publication steps before executing them on someone else's behalf.
+The steps below describe publishing npm packages manually instead.
+
 > [!NOTE]
 > You will need commit access to the repository as well publish access to the @clusterio org on npm to do this.
 
-1. Ensure you are on the latest version of master branch with no untracked files
+1. Inspect `git status` and `git remote -v`, verify which remote is the main repository, and use a clean release worktree on its latest master.
+   The commands below assume that remote is named `upstream`; preserve unrelated work and external plugin checkouts.
 
     ```sh
     git switch master
@@ -20,31 +33,45 @@ Pull requests will usually have suggestions for changelog entries.
     git status
     ```
 
-2. Bump the version in the `package.json` files
+2. Create a release branch and bump the version in the `package.json` files. The commands below use 2.0.1 to 2.0.2 as an example; substitute the versions for the release you are preparing.
 
     ```sh
-    sed -i 's/2\.0\.0-alpha\.XX/2\.0\.0-alpha\.YY/' {packages,plugins}/*/package.json
-    ````
+    git switch -c release/2.0.2
+    sed -i 's/"version": "2\.0\.1"/"version": "2.0.2"/' {packages,plugins}/*/package.json
+    pnpm install --no-frozen-lockfile
+    ```
 
-3. Tag and push the release to github
+3. Review and commit the version and changelog changes, then open and merge a release pull request.
 
     ```sh
     git add -p
-    git commit -m v2.0.0-alpha.XX
-    git tag v2.0.0-alpha.XX
+    git commit -m "Prepare 2.0.2 release"
     ```
 
-4. Perform a clean install and publish the packages.
+4. After the release pull request is merged, tag the merged commit and push the tag.
 
     ```sh
+    git switch master
+    git pull --ff-only upstream master
+    git tag v2.0.2
+    git push upstream v2.0.2
+    ```
+
+5. For manual publication, perform a clean install and publish the packages. For automated publication, publish the GitHub release as described above instead.
+
+    The repository does not track `pnpm-lock.yaml`, so allow pnpm to generate or update it during installation.
+
+    ```sh
+    node clean.js --dry-run
     pnpm clean
-    pnpm -r --filter='./{plugins,packages}/*' publish
+    pnpm install --no-frozen-lockfile
+    pnpm -r --filter='./packages/*' --filter='./plugins/*' --fail-if-no-match publish
     ```
 
 ## Plugins
 
 1. Bump the version in the `package.json` file
-2. Run `pnpm install` in the repository root
+2. Run `pnpm install --no-frozen-lockfile` in the repository root
 3. Run `pnpm adduser` to authenticate
 4. Run `pnpm publish` in the plugin/package directory
 

docs/setting-up-tls.md

@@ -63,10 +63,25 @@ This creates a private key file named `key.pem` and a public certificate file na
     npx clusteriocontroller config set controller.tls_certificate cert.pem
     npx clusteriocontroller config set controller.tls_private_key key.pem
 
-Additionally you will need copy the `cert.pem` file to all of the computers you want to set up as hosts and configure it as the `host.tls_ca` option:
+Additionally you will need copy the `cert.pem` file to all of the computers you want to set up as hosts and configure node to trust it by setting the `NODE_EXTRA_CA_CERTS` environment variable to a path to this file before the host is started. You can do this by passing `--self-signed-cert path/to/cert` to the installer when setting up a host, which also makes the installer trust the certificate when it asks the controller to approve the host, or manually by editing run-host.cmd, run-host.sh and/or clusteriohost.service by adding the following line next to the one setting `NODE_OPTIONS`:
 
-    npx clusteriohost config set host.tls_ca cert.pem
+**For run-host.cmd**
 
-You will also need to copy the `cert.pem` file to all of the computers you want to remotely manage the cluster via clusterctl and configure it as `control.tls_ca` option:
+    set "NODE_EXTRA_CA_CERTS=path\to\cert.pem"
 
-    npx clusterioctl control-config set control.tls_ca cert.pem
+**For run-host.sh**
+
+    export "NODE_EXTRA_CA_CERTS=path/to/cert.pem"
+
+**For clusteriohost.service**
+
+    Environment=NODE_EXTRA_CA_CERTS=path/to/cert.pem
+
+You will also need to copy the `cert.pem` file to all of the computers you want to remotely manage the cluster via clusterctl and set the `NODE_EXTRA_CA_CERTS` environment variable as a path to that file before running clusterioctl. For example:
+
+    # On Windows
+    set "NODE_EXTRA_CA_CERTS=path\to\cert.pem"
+    # On Linux
+    export NODE_EXTRA_CA_CERTS="path/to/cert.pem"
+    # You can now use clusterioctl
+    npx clusterioctl instance list

eslint.config.mjs

@@ -1,503 +0,0 @@
-import {
-	defineConfig,
-	globalIgnores,
-} from "eslint/config";
-
-import typescriptEslint from "@typescript-eslint/eslint-plugin";
-import node from "eslint-plugin-node";
-import globals from "globals";
-import tsParser from "@typescript-eslint/parser";
-import js from "@eslint/js";
-import stylistic from "@stylistic/eslint-plugin";
-
-import {
-	FlatCompat,
-} from "@eslint/eslintrc";
-
-const compat = new FlatCompat({
-	baseDirectory: import.meta.dirname,
-	recommendedConfig: js.configs.recommended,
-	allConfig: js.configs.all,
-});
-
-export default defineConfig([{
-	plugins: {
-		"@typescript-eslint": typescriptEslint,
-		"@stylistic": stylistic,
-		node,
-	},
-
-	languageOptions: {
-		globals: {
-			...globals.node,
-			...globals.commonjs,
-		},
-	},
-
-	"rules": {
-		"@stylistic/indent": ["error", "tab", {
-			"ignoredNodes": [
-				"JSXFragment", // TODO: Linter crashes if this is removed
-			],
-			"ignoreComments": true,
-			"SwitchCase": 1, // Indent case statements one level from switch
-		}],
-		"accessor-pairs": "error",
-		"array-bracket-newline": "off",
-		"array-bracket-spacing": ["error", "never"],
-		"array-callback-return": "error",
-		"array-element-newline": "off",
-		"arrow-body-style": "error",
-		"arrow-parens": "off",
-
-		"arrow-spacing": ["error", {
-			"after": true,
-			"before": true,
-		}],
-
-		"block-scoped-var": "error",
-		"block-spacing": "error",
-
-		"brace-style": ["error", "1tbs", {
-			"allowSingleLine": true,
-		}],
-
-		"camelcase": "off",
-		"capitalized-comments": "off",
-		"class-methods-use-this": "off",
-
-		"comma-dangle": ["error", {
-			"arrays": "always-multiline",
-			"objects": "always-multiline",
-			"imports": "always-multiline",
-			"exports": "always-multiline",
-			"functions": "only-multiline",
-		}],
-
-		"comma-spacing": "error",
-		"comma-style": ["error", "last"],
-		"complexity": ["error", { "max": 25 }],
-		"computed-property-spacing": ["error", "never"],
-		"consistent-return": "error",
-		"consistent-this": "error",
-		"curly": "error",
-		"default-case": "error",
-		"default-case-last": "error",
-		"default-param-last": "off",
-		"dot-location": ["error", "property"],
-
-		"dot-notation": ["error", {
-			"allowPattern": "^[a-z]+(_[a-z]+)*$",
-		}],
-
-		"eol-last": "error",
-		"eqeqeq": "error",
-		"func-call-spacing": "error",
-		"func-name-matching": "error",
-		"func-names": "off",
-
-		"func-style": ["error", "declaration", {
-			"allowArrowFunctions": true,
-		}],
-
-		"function-call-argument-newline": "off",
-		"function-paren-newline": "off",
-
-		"generator-star-spacing": ["error", {
-			"before": false,
-			"after": true,
-		}],
-
-		"grouped-accessor-pairs": "error",
-		"guard-for-in": "error",
-		"id-blacklist": "error",
-		"id-length": "off",
-		"id-match": "error",
-		"implicit-arrow-linebreak": "error",
-
-		"indent-legacy": "off",
-		"init-declarations": "off",
-		"jsx-quotes": "error",
-		"key-spacing": "error",
-		"keyword-spacing": "error",
-		"line-comment-position": "off",
-		"linebreak-style": ["error", "unix"],
-		"lines-around-comment": "off",
-		"lines-around-directive": "off",
-
-		"lines-between-class-members": ["error", "always", {
-			"exceptAfterSingleLine": true,
-		}],
-
-		"max-classes-per-file": "off",
-		"max-depth": "error",
-
-		"max-len": ["error", {
-			"code": 120,
-		}],
-
-		"max-lines": "off",
-		"max-lines-per-function": "off",
-		"max-nested-callbacks": "error",
-		"max-params": "off",
-		"max-statements": "off",
-		"max-statements-per-line": "off",
-		"multiline-comment-style": ["error", "separate-lines"],
-		"multiline-ternary": "off",
-
-		"new-cap": ["error", {
-			"capIsNewExceptions": ["StringEnum", "StringKey"],
-			"capIsNewExceptionPattern": "^Type\\.",
-		}],
-
-		"new-parens": "error",
-		"newline-after-var": "off",
-		"newline-before-return": "off",
-		"newline-per-chained-call": "off",
-		"no-alert": "error",
-		"no-array-constructor": "error",
-		"no-await-in-loop": "off",
-		"no-bitwise": "off",
-		"no-buffer-constructor": "error",
-		"no-caller": "error",
-		"no-catch-shadow": "off",
-		"no-confusing-arrow": "error",
-		"no-console": "error",
-
-		"no-constant-condition": ["error", {
-			"checkLoops": false,
-		}],
-
-		"no-constructor-return": "error",
-		"no-continue": "off",
-		"no-div-regex": "error",
-		"no-duplicate-imports": "error",
-		"no-else-return": "error",
-		"no-empty-function": "off",
-		"no-eq-null": "error",
-		"no-eval": "error",
-		"no-extend-native": "error",
-		"no-extra-bind": "error",
-		"no-extra-label": "error",
-		"no-extra-parens": "off",
-		"no-floating-decimal": "error",
-		"no-implicit-coercion": "error",
-		"no-implicit-globals": "error",
-		"no-implied-eval": "error",
-		"no-inline-comments": "off",
-		"no-invalid-this": "error",
-		"no-iterator": "error",
-		"no-label-var": "error",
-		"no-lone-blocks": "error",
-		"no-lonely-if": "error",
-		"no-loop-func": "error",
-		"no-magic-numbers": "off",
-
-		"no-mixed-operators": ["error", {
-			"groups": [
-				["&", "|", "^", "~", "<<", ">>", ">>>"],
-				["==", "!=", "===", "!==", ">", ">=", "<", "<="],
-				["in", "instanceof"],
-			],
-		}],
-
-		"no-multi-assign": "error",
-		"no-multi-spaces": "error",
-		"no-multi-str": "error",
-		"no-multiple-empty-lines": "error",
-		"no-native-reassign": "error",
-		"no-negated-condition": "off",
-		"no-negated-in-lhs": "error",
-		"no-nested-ternary": "error",
-		"no-new": "error",
-		"no-new-func": "error",
-		"no-new-object": "error",
-		"no-new-wrappers": "error",
-		"no-octal-escape": "error",
-		"no-param-reassign": "off",
-
-		"no-plusplus": ["error", {
-			"allowForLoopAfterthoughts": true,
-		}],
-
-		"no-proto": "error",
-		"no-restricted-exports": "error",
-		"no-restricted-globals": "error",
-		"no-restricted-imports": "error",
-		"no-restricted-properties": "error",
-		"no-restricted-syntax": "error",
-		"no-return-assign": "error",
-		"no-return-await": "off",
-		"no-script-url": "error",
-		"no-self-compare": "error",
-		"no-sequences": "error",
-
-		"no-shadow": ["error", {
-			"allow": ["Event", "Request", "yargs"],
-		}],
-
-		"no-spaced-func": "error",
-
-		"no-tabs": "off",
-
-		"no-template-curly-in-string": "error",
-		"no-ternary": "off",
-		"no-throw-literal": "error",
-		"no-trailing-spaces": "error",
-		"no-undef-init": "error",
-		"no-undefined": "off",
-		"no-unmodified-loop-condition": "error",
-		"no-unneeded-ternary": "error",
-		"no-unused-expressions": "error",
-		"no-use-before-define": "off",
-		"no-useless-backreference": "error",
-		"no-useless-call": "error",
-		"no-useless-computed-key": "error",
-		"no-useless-concat": "error",
-		"no-useless-constructor": "off",
-		"no-useless-rename": "error",
-		"no-useless-return": "error",
-		"no-var": "error",
-
-		"no-void": ["error", {
-			"allowAsStatement": true,
-		}],
-
-		"no-warning-comments": "off",
-		"no-whitespace-before-property": "error",
-		"nonblock-statement-body-position": "error",
-		"object-curly-newline": "error",
-		"object-curly-spacing": "off",
-		"object-shorthand": "off",
-		"one-var": "off",
-		"one-var-declaration-per-line": "error",
-		"operator-assignment": "off",
-
-		"operator-linebreak": ["error", "after", {
-			"overrides": {
-				"?": "before",
-				":": "before",
-				"||": "before",
-				"&&": "before",
-				"??": "before",
-			},
-		}],
-
-		"padded-blocks": "off",
-		"padding-line-between-statements": "error",
-		"prefer-arrow-callback": "error",
-		"prefer-const": "off",
-		"prefer-destructuring": "off",
-		"prefer-exponentiation-operator": "error",
-		"prefer-named-capture-group": "off",
-		"prefer-numeric-literals": "error",
-		"prefer-object-spread": "error",
-		"prefer-promise-reject-errors": "error",
-		"prefer-reflect": "off",
-		"prefer-regex-literals": "error",
-		"prefer-rest-params": "error",
-		"prefer-spread": "error",
-		"prefer-template": "error",
-		"quote-props": "off",
-
-		"quotes": ["error", "double", {
-			"avoidEscape": true,
-		}],
-
-		"radix": ["error", "always"],
-		"require-atomic-updates": "off",
-		"require-await": "off",
-		"require-jsdoc": "off",
-		"require-unicode-regexp": "off",
-		"rest-spread-spacing": ["error", "never"],
-		"semi": "error",
-		"semi-spacing": "error",
-		"semi-style": "off",
-		"sort-imports": "off",
-		"sort-keys": "off",
-		"sort-vars": "off",
-		"space-before-blocks": "error",
-		"space-before-function-paren": "off",
-		"space-in-parens": ["error", "never"],
-		"space-infix-ops": "off",
-		"space-unary-ops": "error",
-
-		"spaced-comment": ["error", "always", {
-			"line": {
-				"markers": ["/"],
-			},
-		}],
-
-		"switch-colon-spacing": "error",
-		"symbol-description": "error",
-		"template-curly-spacing": ["error", "never"],
-		"template-tag-spacing": "error",
-		"unicode-bom": ["error", "never"],
-
-		"vars-on-top": "error",
-		"wrap-iife": "error",
-		"wrap-regex": "off",
-		"yield-star-spacing": "error",
-
-		"yoda": ["error", "never", {
-			"exceptRange": true,
-		}],
-
-		"node/callback-return": "off",
-		"node/exports-style": "off",
-		"node/file-extension-in-import": "off",
-		"node/global-require": "off",
-		"node/handle-callback-err": "off",
-		"node/no-callback-literal": "off",
-		"node/no-deprecated-api": "off",
-		"node/no-exports-assign": "off",
-		"node/no-extraneous-import": "off",
-		"node/no-extraneous-require": "off",
-
-		"node/no-missing-import": "off",
-
-		"node/no-missing-require": "off",
-		"node/no-mixed-requires": "off",
-		"node/no-new-require": "off",
-		"node/no-path-concat": "off",
-		"node/no-process-env": "off",
-		"node/no-process-exit": "off",
-		"node/no-restricted-require": "off",
-		"node/no-sync": "error",
-		"node/no-unpublished-bin": "off",
-		"node/no-unpublished-import": "off",
-
-		"node/no-unpublished-require": "off",
-
-		"node/no-unsupported-features/es-builtins": "off",
-		"node/no-unsupported-features/es-syntax": "off",
-		"node/no-unsupported-features/node-builtins": "off",
-		"node/prefer-global/buffer": "off",
-		"node/prefer-global/console": "off",
-		"node/prefer-global/process": "off",
-		"node/prefer-global/text-decoder": "off",
-		"node/prefer-global/text-encoder": "off",
-		"node/prefer-global/url-search-params": "off",
-		"node/prefer-global/url": "off",
-		"node/prefer-promises/dns": "off",
-		"node/prefer-promises/fs": "off",
-		"node/process-exit-as-throw": "off",
-
-		"node/shebang": "off",
-	},
-}, {
-	files: ["{packages,plugins}/**/*.ts?(x)"],
-
-	languageOptions: {
-		parser: tsParser,
-	},
-
-	extends: compat.extends("plugin:@typescript-eslint/recommended"),
-
-	"rules": {
-		"@typescript-eslint/no-explicit-any": "off",
-		"@typescript-eslint/no-useless-constructor": "error",
-		"@typescript-eslint/no-unused-vars": "off",
-		"@typescript-eslint/triple-slash-reference": "off",
-
-		"@typescript-eslint/no-shadow": ["error", {
-			"allow": ["Event", "Request", "yargs"],
-		}],
-
-		// Allow require imports where necessary (dynamic loading, webpack configs, etc.)
-		"@typescript-eslint/no-require-imports": "off",
-
-		"prefer-const": "off",
-		"no-shadow": "off",
-	},
-}, {
-	files: ["test/**/*.js", "plugins/*/test/**/*.js"],
-
-	languageOptions: {
-		globals: {
-			...globals.mocha,
-		},
-
-		sourceType: "commonjs",
-		parserOptions: {},
-	},
-
-	"rules": {
-		"prefer-arrow-callback": "off",
-		"no-invalid-this": "off",
-		"node/no-unpublished-import": "off",
-		"node/no-unpublished-require": "off",
-	},
-}, {
-	files: [
-		"packages/web_ui/src/**/*.ts?(x)",
-		"packages/lib/browser.ts",
-		"packages/create/templates/*/web/**/*.{t,j}s?(x)",
-		"{packages,plugins}/*/web/**/*.ts?(x)",
-	],
-
-	languageOptions: {
-		globals: {
-			...globals.browser,
-		},
-
-		"sourceType": "module",
-
-		parserOptions: {
-			"ecmaFeatures": {
-				"jsx": true,
-			},
-		},
-	},
-
-	"rules": {
-		"node/callback-return": "off",
-		"node/exports-style": "off",
-		"node/file-extension-in-import": "off",
-		"node/global-require": "off",
-		"node/handle-callback-err": "off",
-		"node/no-callback-literal": "off",
-		"node/no-deprecated-api": "off",
-		"node/no-exports-assign": "off",
-		"node/no-extraneous-import": "off",
-		"node/no-extraneous-require": "off",
-		"node/no-missing-import": "off",
-		"node/no-missing-require": "off",
-		"node/no-mixed-requires": "off",
-		"node/no-new-require": "off",
-		"node/no-path-concat": "off",
-		"node/no-process-env": "off",
-		"node/no-process-exit": "off",
-		"node/no-restricted-require": "off",
-		"node/no-sync": "error",
-		"node/no-unpublished-bin": "off",
-		"node/no-unpublished-import": "off",
-		"node/no-unpublished-require": "off",
-		"node/no-unsupported-features/es-builtins": "off",
-		"node/no-unsupported-features/es-syntax": "off",
-		"node/no-unsupported-features/node-builtins": "off",
-		"node/prefer-global/buffer": "off",
-		"node/prefer-global/console": "off",
-		"node/prefer-global/process": "off",
-		"node/prefer-global/text-decoder": "off",
-		"node/prefer-global/text-encoder": "off",
-		"node/prefer-global/url-search-params": "off",
-		"node/prefer-global/url": "off",
-		"node/prefer-promises/dns": "off",
-		"node/prefer-promises/fs": "off",
-		"node/process-exit-as-throw": "off",
-		"node/shebang": "off",
-	},
-}, {
-	files: ["packages/create/templates/**/*.{t,j}s?(x)"],
-
-	"rules": {
-		"node/no-missing-require": "off",
-		"node/no-missing-import": "off",
-		"@stylistic/indent": "off",
-		"spaced-comment": "off",
-		"comma-spacing": "off",
-		"max-len": "off",
-		"indent": "off",
-	},
-}, globalIgnores(["**/dist/", "dist/"])]);

logo-square.svg

@@ -0,0 +1 @@
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package.json

@@ -2,33 +2,33 @@
 	"name": "root",
 	"private": true,
 	"files": [],
-	"packageManager": "pnpm@10.28.1+sha512.7d7dbbca9e99447b7c3bf7a73286afaaf6be99251eb9498baefa7d406892f67b879adb3a1d7e687fc4ccc1a388c7175fbaae567a26ab44d1067b54fcb0d6a316",
+	"packageManager": "pnpm@12.4.1+sha512.2e81e399d73fe8390dab25e06aa788ab7a5908248d2f5a370f82b481147a6a7a367bf8048f9a6fdb6460f21a66f0542dedb8b94ca2c8723596741920b1656d4c",
+	"type": "module",
 	"scripts": {
 		"build": "tsc --build",
 		"watch": "tsc --build --watch",
 		"build-mod": "pnpm run -r build-mod --output-dir ../../dist",
-		"test": "pnpm run build && mocha --enable-source-maps --check-leaks -R spec --recursive test \"plugins/*/test/**\" --exclude \"test/manual/**\"",
+		"test": "pnpm run build && NODE_EXTRA_CA_CERTS=$(pwd)/test/file/tls/cert.pem mocha --enable-source-maps --check-leaks -R spec --recursive test \"plugins/*/test/**\" --exclude \"test/manual/**\"",
 		"silent-test": "SILENT_TEST=y pnpm test",
 		"fast-test": "FAST_TEST=y pnpm test",
-		"cover": "nyc pnpm test",
-		"fast-cover": "FAST_TEST=y nyc pnpm test",
-		"ci-cover": "nyc --reporter=lcovonly pnpm run-script test",
-		"lint": "eslint packages plugins test",
-		"lint-fix": "eslint --fix packages plugins test",
-		"clean": "node ./clean.js fast",
-		"clean-tests": "node ./clean.js tests",
-		"clean-all": "node ./clean.js all",
-		"docs": "typedoc",
+		"no-external-test": "NO_EXTERNAL_TEST=y pnpm test",
+		"cover": "c8 pnpm test",
+		"fast-cover": "FAST_TEST=y c8 pnpm test",
+		"ci-cover": "c8 --reporter=lcovonly pnpm test",
+		"lint": "oxlint packages plugins test",
+		"lint-fix": "oxlint --fix packages plugins test",
+		"clean": "node ./clean.js",
 		"bundle-dependencies": "bundle-dependencies"
 	},
-	"nyc": {
+	"c8": {
 		"exclude": [
 			"test/**",
-			"plugins/*/test/**"
+			"plugins/*/test/**",
+			"temp/**"
 		]
 	},
 	"engines": {
-		"node": ">=20"
+		"node": "^22.18.0 || >=24.2.0"
 	},
 	"workspaces": [
 		"packages/*",
@@ -37,30 +37,21 @@
 		"external_plugins/*/*"
 	],
 	"devDependencies": {
-		"@clusterio/controller": "workspace:*",
-		"@clusterio/ctl": "workspace:*",
-		"@clusterio/host": "workspace:*",
-		"@clusterio/lib": "workspace:*",
-		"@clusterio/web_ui": "workspace:*",
-		"@eslint/eslintrc": "^3.3.1",
-		"@eslint/js": "^9.32.0",
-		"@stylistic/eslint-plugin": "^5.2.2",
-		"@swc/core": "^1.13.3",
-		"@typescript-eslint/eslint-plugin": "^8.38.0",
-		"@typescript-eslint/parser": "^8.38.0",
-		"eslint": "^9.32.0",
-		"eslint-plugin-node": "^11.1.0",
-		"express": "^5.1.0",
-		"form-data": "^4.0.4",
-		"fs-extra": "^11.3.0",
-		"globals": "^16.3.0",
-		"jsonwebtoken": "^9.0.2",
-		"jszip": "^3.10.1",
-		"mocha": "^11.7.1",
-		"nyc": "^17.1.0",
-		"phin": "^3.7.1",
-		"typedoc": "^0.28.9",
-		"typescript": "^5.9.2",
-		"yargs": "^18.0.0"
+		"@clusterio/controller": "workspace:^",
+		"@clusterio/ctl": "workspace:^",
+		"@clusterio/host": "workspace:^",
+		"@clusterio/lib": "workspace:^",
+		"@clusterio/web_ui": "workspace:^",
+		"@stylistic/eslint-plugin": "^5.10.0",
+		"@types/node": "catalog:",
+		"c8": "^12.0.0",
+		"express": "catalog:",
+		"jsonwebtoken": "catalog:",
+		"mocha": "^11.8.0",
+		"oxlint": "^1.88.0",
+		"typescript": "catalog:",
+		"yargs": "catalog:",
+		"yauzl": "catalog:",
+		"yazl": "catalog:"
 	}
 }

packages/controller/.npmignore

@@ -1,2 +1,2 @@
-webpack.config.js
+vite.config.js
 dist/browser

packages/controller/README.md

@@ -15,9 +15,12 @@ Common options:
    See the `plugin` command for managing this list.
 
  * `--config <file>` JSON file to use for storing configuration for the controller.
-   Defaults to `config-controller.json` and will be created if it does not exist.
+   Defaults to `config-controller.json` and is required for operation.
    See the `config` command for inspecting and modifying the configuration.
 
+ * `--create-config` If the config file is missing, create a new one and carry on instead of exiting with an error.
+   Alternative to the `config create` command.
+
 
 ### `plugin <command>`
 
@@ -25,17 +28,28 @@ Configure plugins available to be loaded by the controller.
 The available plugins will be loaded unless they have been disabled in the configuration, see the config command for disabling plugins.
 
 
+#### `plugin install <package>`
+
+Install a plugin from npm and add it to the plugin list.
+The package is passed to `npm install --save` so anything npm accepts works, including a version like `@clusterio/plugin-subspace_storage@2.0.0`.
+This command refuses to run outside the directory Clusterio was installed in, as the plugin has to end up in that directory's node_modules to be found.
+
+For example, installing the Subspace Storage plugin:
+
+    npx clusteriocontroller plugin install @clusterio/plugin-subspace_storage
+
+Since the `plugin-list.json` is shared between controller, host and ctl you usually only need to do this once per machine.
+
+
 #### `plugin add <path>`
 
 Add plugin either by require path or relative/absolute path to the plugin directory.
 A relative path must start with ./ or ../ (or .\ and ..\ on Windows) otherwise it will be assumed to be a require path for an installed package in node_modules.
+This is mainly useful for plugins under development, packages published on npm are better installed with `plugin install`.
 
-For example, installing the Subspace Storage plugin:
+For example, adding a plugin checked out in the external_plugins directory:
 
-    npm install @clusterio/plugin-subspace_storage
-    npx clusteriocontroller plugin add @clusterio/plugin-subspace_storage
-
-Since the `plugin-list.json` is shared between controller, host and ctl you usually only need to do this once per machine.
+    npx clusteriocontroller plugin add ./external_plugins/my_plugin
 
 
 #### `plugin remove <name>`
@@ -63,6 +77,13 @@ Manage the controller configuration offline.
 This should only be used when the controller is stopped, otherwise the config read might be out of date and config changes will be overwritten when the controller shuts down.
 
 
+#### `config create`
+
+Create a new config file with the default options inserted into if it doesn't already exist.
+
+See also the `--create-config` option.
+
+
 #### `config set <config-entry> [value]`
 
 Set a config entry to the given value.
@@ -104,6 +125,16 @@ This can be used both in the web interface and as the `controller_token` to conn
 Creates a clusterioctl config for the given user with url and token set up for connecting to the cluster.
 
 
+### `copy-static [target]`
+
+Copies the static web assets to the given target folder (which defaults to `./static/`).
+Useful in case you want to host the assets on a CDN or separate web server and want provide the files directly instead of fetching them from the controller.
+
+Note that mod pack exports will create additional static files that also have to be hosted, these are written to the `./static/` folder in the clusterio installation directory.
+
+See also the `controller.public_url` config option for setting where static assets are loaded from.
+
+
 ### `run`
 
 Runs the controller.

packages/controller/controller.ts

@@ -15,24 +15,25 @@
  */
 
 import path from "path";
-import fs from "fs-extra";
+import fs from "node:fs/promises";
 
 import crypto from "crypto";
-import setBlocking from "set-blocking";
 import yargs from "yargs";
 import util from "util";
 import winston from "winston";
 import DailyRotateFile from "winston-daily-rotate-file";
 
-import jwt from "jsonwebtoken";
 
 // homebrew modules
+// Reduce startup time by lazy compiling schemas.
+import "./src/set_lazy_schema_compilation.js";
 import * as lib from "@clusterio/lib";
-const { ConsoleTransport, levels, logger } = lib;
+import { ConsoleTransport, levels, logger } from "@clusterio/lib";
 
-import Controller from "./src/Controller";
-import UserManager from "./src/UserManager";
-import { version } from "./package.json";
+import type Controller from "./src/Controller.js";
+import UserManager from "./src/UserManager.js";
+import UserRecord from "./src/UserRecord.js";
+import packageConfig from "@clusterio/controller/package.json" with { type: "json" };
 
 // globals
 let controller: Controller;
@@ -101,6 +102,9 @@ void new lib.Gauge(
 	"clusterio_controller_websocket_active_connections",
 	"How many WebSocket connections are currently open to the controller",
 	{ callback: function(gauge:lib.Gauge) {
+		if (!controller) {
+			return;
+		}
 		gauge.set(controller.wsServer.activeConnectors.size);
 	}}
 );
@@ -109,6 +113,9 @@ void new lib.Gauge(
 	"clusterio_controller_active_hosts",
 	"How many hosts are currently connected to the controller",
 	{ callback: function(gauge:lib.Gauge) {
+		if (!controller) {
+			return;
+		}
 		gauge.set(controller.wsServer.hostConnections.size);
 	}}
 );
@@ -118,6 +125,9 @@ void new lib.Gauge(
 	"How many clients are currently connected to this controller",
 	{
 		labels: ["type"], callback: async function(gauge:lib.Gauge) {
+			if (!controller) {
+				return;
+			}
 			gauge.labels("host").set(controller.wsServer.hostConnections.size);
 			gauge.labels("control").set(controller.wsServer.controlConnections.size);
 		},
@@ -133,13 +143,22 @@ async function handleBootstrapCommand(
 	let subCommand = args._[1];
 
 	const databaseDirectory = controllerConfig.get("controller.database_directory");
-	const roles = new lib.SubscribableDatastore(...await new lib.JsonIdDatastoreProvider(
+	await UserManager.attemptMigrateLegacyUsersFile(
+		path.join(databaseDirectory, "users.json"),
+		path.join(databaseDirectory, "roles.json"),
+	);
+
+	const roles = await lib.SubscribableDatastore.fromProvider(new lib.JsonIdDatastoreProvider(
 		path.join(databaseDirectory, "roles.json"),
 		lib.Role.fromJSON.bind(lib.Role),
-	).bootstrap());
+	));
 
-	const userManager = new UserManager(controllerConfig, roles);
-	await userManager.load(path.join(databaseDirectory, "users.json"));
+	const users = await lib.SubscribableDatastore.fromProvider(new lib.JsonIdDatastoreProvider(
+		path.join(databaseDirectory, "users.json"),
+		UserRecord.fromJSON.bind(UserRecord),
+	));
+
+	const userManager = new UserManager(users, roles, controllerConfig);
 
 	if (subCommand === "create-admin") {
 		await controllerConfigLock.acquire(); // Also needed to write to the database files
@@ -150,15 +169,12 @@ async function handleBootstrapCommand(
 			return;
 		}
 
-		let admin = userManager.getByName(args.name);
-		if (!admin) {
-			admin = userManager.createUser(args.name);
-		}
+		const user = userManager.getOrCreateUser(args.name);
+		user.roleIds.add(lib.Role.DefaultAdminRoleId);
+		user.isAdmin = true;
+		user.saveRecord();
 
-		let adminRole = lib.ensureDefaultAdminRole(roles);
-		admin.roleIds.add(adminRole.id);
-		admin.isAdmin = true;
-		await userManager.save(path.join(controllerConfig.get("controller.database_directory"), "users.json"));
+		await userManager.records.save();
 		await controllerConfigLock.release();
 
 	} else if (subCommand === "generate-user-token") {
@@ -171,13 +187,6 @@ async function handleBootstrapCommand(
 		// eslint-disable-next-line no-console
 		console.log(userManager.signUserToken(user));
 
-	} else if (subCommand === "generate-host-token") {
-		// eslint-disable-next-line no-console
-		console.log(jwt.sign(
-			{ aud: "host", host: args.id },
-			Buffer.from(controllerConfig.get("controller.auth_secret"), "base64")
-		));
-
 	} else if (subCommand === "create-ctl-config") {
 		let admin = userManager.getByName(args.name);
 		if (!admin) {
@@ -185,25 +194,60 @@ async function handleBootstrapCommand(
 			process.exitCode = 1;
 			return;
 		}
-		let controlConfig = new lib.ControlConfig("control");
+		let ctlConfig = new lib.CtlConfig("control");
 
-		controlConfig.set("control.controller_url", Controller.calculateControllerUrl(controllerConfig));
-		controlConfig.set(
-			"control.controller_token",
+		const { default: Controller } = await import("./src/Controller.js");
+		ctlConfig.set("ctl.controller_url", Controller.calculateControllerUrl(controllerConfig));
+		ctlConfig.set(
+			"ctl.controller_token",
 			userManager.signUserToken(admin),
 		);
 
-		let content = JSON.stringify(controlConfig, null, "\t");
+		let content = JSON.stringify(ctlConfig, null, "\t");
 		if (args.output === "-") {
 			// eslint-disable-next-line no-console
 			console.log(content);
 		} else {
 			logger.info(`Writing ${args.output}`);
-			await lib.safeOutputFile(args.output, content);
+			await lib.atomicOverwriteFile(args.output, content, { mode: 0o600 });
 		}
 	}
 }
 
+async function handleCopyStaticCommand(
+	args: any,
+	pluginInfos: lib.PluginNodeEnvInfo[],
+) {
+	await fs.cp(
+		path.join(import.meta.dirname, "..", "web", "static"),
+		args.target,
+		{
+			recursive: true,
+			mode: fs.constants.COPYFILE_FICLONE,
+		},
+	);
+	logger.info("Copied main web interface files");
+	for (const pluginInfo of pluginInfos) {
+		try {
+			await fs.cp(
+				pluginInfo.webStaticPath,
+				args.target,
+				{
+					recursive: true,
+					mode: fs.constants.COPYFILE_FICLONE,
+				},
+			);
+		} catch (err: any) {
+			if (err.code === "ENOENT") {
+				logger.info(`Skipped web interface files for ${pluginInfo.name}: ${err.message}`);
+			} else {
+				logger.error(`Unexpected error copying web interface files for ${pluginInfo.name}:\n${err.stack}`);
+				process.exitCode = 1;
+			}
+		}
+		logger.info(`Copied web interface files for ${pluginInfo.name}`);
+	}
+}
 
 export interface ControllerArgs {
 	[x: string]: unknown;
@@ -227,7 +271,7 @@ interface InitializeParameters {
 
 async function initialize(): Promise<InitializeParameters> {
 	// argument parsing
-	const args = await yargs
+	const args = await yargs(process.argv.slice(2))
 		.scriptName("controller")
 		.usage("$0 <command> [options]")
 		.option("log-level", {
@@ -249,6 +293,12 @@ async function initialize(): Promise<InitializeParameters> {
 			default: "config-controller.json",
 			type: "string",
 		})
+		.option("create-config", {
+			nargs: 0,
+			describe: "Create config file if it does not exist",
+			default: false,
+			type: "boolean",
+		})
 		.option("plugin-list", {
 			nargs: 1,
 			describe: "File containing list of plugins available with their install path",
@@ -266,17 +316,21 @@ async function initialize(): Promise<InitializeParameters> {
 				.command("generate-user-token <name>", "Generate authentication token for the given user", yargs => {
 					yargs.positional("name", { describe: "Name of the user", type: "string" });
 				})
-				.command("generate-host-token <id>", "Generate authentication token for the given host", yargs => {
-					yargs.positional("id", { describe: "ID of the host", type: "number" });
-				})
 				.command("create-ctl-config <name>", "Create clusterioctl config for the given user", yargs => {
 					yargs.option("output", {
 						describe: "Path to output config (- for stdout)", type: "string",
-						nargs: 1, default: "config-control.json",
+						nargs: 1, default: "config-ctl.json",
 					});
 				})
 				.demandCommand(1, "You need to specify a command to run");
 		})
+		.command("copy-static [target]", "Copy static Web UI files to a folder", yargs => {
+			yargs.positional("target", {
+				describe: "Target directory to copy files to",
+				type: "string",
+				default: "static",
+			});
+		})
 		.command("run", "Run controller", yargs => {
 			yargs.option("can-restart", {
 				type: "boolean", nargs: 0, default: false,
@@ -292,7 +346,7 @@ async function initialize(): Promise<InitializeParameters> {
 		})
 		.demandCommand(1, "You need to specify a command to run")
 		.strict()
-		.argv
+		.parse()
 	;
 
 	// Combined log stream of the whole cluster.
@@ -329,7 +383,7 @@ async function initialize(): Promise<InitializeParameters> {
 	let command = args._[0];
 	let shouldRun = false;
 	if (command === "run") {
-		logger.info(`Starting Clusterio controller ${version}`);
+		logger.info(`Starting Clusterio controller ${packageConfig.version}`);
 		if (args.recovery) {
 			logger.warn("Controller recovery mode enabled. Some features will be disabled.");
 		}
@@ -337,7 +391,8 @@ async function initialize(): Promise<InitializeParameters> {
 	}
 
 	logger.info(`Loading available plugins from ${args.pluginList}`);
-	let pluginList = await lib.loadPluginList(args.pluginList);
+	const skippedNpmPlugins = new Map<string, string>();
+	let pluginList = await lib.loadPluginList(args.pluginList, true, skippedNpmPlugins);
 
 	// If the command is plugin management we don't try to load plugins
 	if (command === "plugin") {
@@ -352,33 +407,21 @@ async function initialize(): Promise<InitializeParameters> {
 	}
 
 	logger.info("Loading Plugin info");
-	const pluginInfos = await lib.loadPluginInfos(pluginList);
+	const pluginInfos = await lib.loadPluginInfos(pluginList, skippedNpmPlugins);
 	lib.registerPluginMessages(pluginInfos);
+	lib.registerPluginPermissions(pluginInfos);
 	lib.addPluginConfigFields(pluginInfos);
-
-	const controllerConfigPath = args.config;
-	const controllerConfigLockPath = `${controllerConfigPath}.lock`;
-	if (args.bypassLockFile) {
-		await fs.unlink(controllerConfigLockPath).catch(() => {}); // ignore error, file might not exist
+	if (!args.recovery) {
+		await lib.loadPluginMigrations(pluginInfos);
 	}
 
-	let controllerConfig;
-	const controllerConfigLock = new lib.LockFile(controllerConfigLockPath);
-	logger.info(`Loading config from ${controllerConfigPath}`);
-	try {
-		controllerConfig = await lib.ControllerConfig.fromFile("controller", controllerConfigPath);
+	const [controllerConfig, controllerConfigLock] = await lib.loadConfigFromArgs(
+		args,
+		lib.ControllerConfig,
+		"controller",
+	);
 
-	} catch (err: any) {
-		if (err.code === "ENOENT") {
-			logger.info("Config not found, initializing new config");
-			controllerConfig = new lib.ControllerConfig("controller", undefined, controllerConfigPath);
-
-		} else {
-			throw new lib.StartupError(`Failed to load ${controllerConfigPath}: ${err.stack ?? err.message ?? err}`);
-		}
-	}
-
-	controllerConfig.set("controller.version", version); // Allows tracking last loaded version
+	controllerConfig.set("controller.version", packageConfig.version); // Allows tracking last loaded version
 
 	if (!controllerConfig.get("controller.auth_secret")) {
 		logger.info("Generating new controller authentication secret");
@@ -392,6 +435,8 @@ async function initialize(): Promise<InitializeParameters> {
 		await lib.handleConfigCommand(args, controllerConfig, controllerConfigLock);
 	} else if (command === "bootstrap") {
 		await handleBootstrapCommand(args, controllerConfig, controllerConfigLock);
+	} else if (command === "copy-static") {
+		await handleCopyStaticCommand(args, pluginInfos);
 	} else if (shouldRun) {
 		await controllerConfigLock.acquire(); // Hold the lock until process exit
 	}
@@ -421,50 +466,27 @@ async function startup() {
 		return;
 	}
 
-	controller = new Controller(
-		clusterLogger,
-		pluginInfos,
+	// Loaded here as the server is not needed by the other commands
+	const { default: Controller } = await import("./src/Controller.js");
+	controller = await Controller.fromConfig(
 		controllerConfig,
+		pluginInfos,
+		clusterLogger,
 		Boolean(args.canRestart),
 		Boolean(args.recovery),
-		...await Controller.bootstrap(controllerConfig)
 	);
 
 	// Refuse to start if there are no users loaded
-	if (args.checkUserCount && controller.userManager.users.size === 0) {
+	if (args.checkUserCount && controller.users.records.size === 0) {
 		logger.fatal(
 			"Cannot start controller, no users loaded.\n" +
 			"Try `npx clusteriocontroller bootstrap create-admin <username>`");
 		process.exit(1);
 	}
 
-	let secondSigint = false;
-	process.on("SIGINT", () => {
-		if (secondSigint) {
-			setBlocking(true);
-			logger.fatal("Caught second interrupt, terminating immediately");
-
-			process.exit(1);
-		}
-
-		secondSigint = true;
-		logger.info("Caught interrupt signal, shutting down");
-		controller.stop();
-	});
-	let secondSigterm = false;
-	process.on("SIGTERM", () => {
-		if (secondSigterm) {
-			setBlocking(true);
-			logger.fatal("Caught second termination, terminating immediately");
-
-			process.exit(1);
-		}
-
-		secondSigterm = true;
-		logger.info("Caught termination signal, shutting down");
-		controller.stop();
-	});
-
+	// Handle interrupts
+	process.on("SIGINT", lib.createShutdownGuard(logger, "interrupt", controller.stop.bind(controller)));
+	process.on("SIGTERM", lib.createShutdownGuard(logger, "termination", controller.stop.bind(controller)));
 	process.on("SIGHUP", () => {
 		logger.info("Terminal closed, shutting down");
 		controller.stop();
@@ -474,16 +496,8 @@ async function startup() {
 }
 
 export function bootstrap() {
-	// eslint-disable-next-line no-console
-	console.warn(`
-+==========================================================+
-I WARNING:  This is the development branch for the 2.0     I
-I           version of clusterio.  Expect things to break. I
-+==========================================================+
-`
-	);
 	startup().catch(err => {
-		if (err instanceof lib.StartupError) {
+		if (err instanceof lib.StartupError || err.code === "InstallationError") {
 			logger.fatal(`
 +-------------------------------+
 | Unable to to start controller |
@@ -511,6 +525,6 @@ ${err.stack}`
 	});
 }
 
-if (module === require.main) {
+if (import.meta.main) {
 	bootstrap();
 }

packages/controller/index.ts

@@ -1,15 +1,19 @@
-import { bootstrap } from "./controller";
-export { default as Controller } from "./src/Controller";
-export { default as ControllerUser } from "./src/ControllerUser";
-export { default as ControllerRouter } from "./src/ControllerRouter";
-export { default as ControlConnection } from "./src/ControlConnection";
-export { default as HostConnection } from "./src/HostConnection";
-export { default as InstanceInfo } from "./src/InstanceInfo";
-export { default as HostInfo } from "./src/HostInfo";
-export { default as BaseControllerPlugin } from "./src/BaseControllerPlugin";
-export { default as UserManager } from "./src/UserManager";
-export { default as WsServer } from "./src/WsServer";
+import { bootstrap } from "./controller.js";
+export { default as Controller } from "./src/Controller.js";
+export { default as ControllerRouter } from "./src/ControllerRouter.js";
+export { default as ControlConnection } from "./src/ControlConnection.js";
+export { default as HostConnection } from "./src/HostConnection.js";
+export { default as InstanceRecord } from "./src/InstanceRecord.js";
+export { default as InstanceManager } from "./src/InstanceManager.js";
+export { default as HostManager } from "./src/HostManager.js";
+export { default as HostRecord } from "./src/HostRecord.js";
+export { default as HostPairingManager, HostPairingError } from "./src/HostPairingManager.js";
+export { BaseControllerPlugin, ControllerHooks, type ControllerPluginContext } from "./src/BaseControllerPlugin.js";
+export { default as UserManager } from "./src/UserManager.js";
+export { default as UserRecord } from "./src/UserRecord.js";
+export { default as User } from "./src/User.js";
+export { default as WsServer } from "./src/WsServer.js";
 
-if (module === require.main) {
+if (import.meta.main) {
 	bootstrap();
 }

packages/controller/package.json

@@ -1,63 +1,71 @@
 {
 	"name": "@clusterio/controller",
+	"version": "2.0.3",
 	"description": "Implementation of Clusterio controller",
-	"author": "Hornwitser",
+	"homepage": "https://github.com/clusterio/clusterio#readme",
+	"author": "Hornwitser <github@hornwitser.no>",
 	"license": "MIT",
-	"version": "2.0.0-alpha.22b",
+
+	"keywords": [
+		"clusterio",
+		"factorio"
+	],
+
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/clusterio/clusterio"
+	},
+	"bugs": {
+		"url": "https://github.com/clusterio/clusterio/issues"
+	},
+	"publishConfig": {
+		"access": "public"
+	},
+
+	"type": "module",
 	"main": "dist/node/index.js",
 	"scripts": {
-		"prepare": "tsc --build && webpack-cli --mode production",
+		"prepare": "tsc --build && vite build",
 		"test": "echo \"Error: no test specified\" && exit 1"
 	},
 	"bin": {
 		"clusteriocontroller": "./dist/node/controller.js"
 	},
-	"keywords": [
-		"clusterio",
-		"factorio"
-	],
 	"engines": {
-		"node": ">=20"
+		"node": "^22.18.0 || >=24.2.0"
 	},
+
 	"dependencies": {
-		"@clusterio/lib": "workspace:*",
+		"@clusterio/lib": "workspace:^",
 		"@sinclair/typebox": "catalog:",
-		"set-blocking": "catalog:",
-		"jsonwebtoken": "catalog:",
+		"busboy": "^1.6.0",
+		"compression": "^1.8.2",
 		"express": "catalog:",
-		"fs-extra": "catalog:",
-		"ws": "catalog:",
-		"jszip": "catalog:",
+		"finalhandler": "^2.1.1",
+		"jsonwebtoken": "catalog:",
+		"semver": "catalog:",
 		"winston": "catalog:",
 		"winston-daily-rotate-file": "catalog:",
-		"busboy": "^1.6.0",
-		"compression": "^1.8.0",
-		"finalhandler": "^1.3.1",
-		"yargs": "^17.7.2"
+		"ws": "catalog:",
+		"yargs": "catalog:"
 	},
 	"devDependencies": {
-		"@clusterio/web_ui": "workspace:*",
-		"@types/jsonwebtoken": "catalog:",
-		"@types/set-blocking": "catalog:",
-		"@types/finalhandler": "catalog:",
+		"@clusterio/web_ui": "workspace:^",
+		"@types/busboy": "^1.5.5",
+		"@types/compression": "^1.8.1",
 		"@types/express": "catalog:",
-		"@types/fs-extra": "catalog:",
+		"@types/finalhandler": "catalog:",
+		"@types/jsonwebtoken": "catalog:",
 		"@types/node": "catalog:",
+		"@types/semver": "catalog:",
 		"@types/ws": "catalog:",
-		"@types/yargs": "^17.0.33",
-		"@types/compression": "^1.7.2",
-		"@types/busboy": "^1.5.0",
-		"@swc/core": "catalog:",
+		"@types/yargs": "catalog:",
+		"antd": "catalog:",
 		"react": "catalog:",
 		"react-dom": "catalog:",
+		"react-router": "catalog:",
 		"react-router-dom": "catalog:",
 		"typescript": "catalog:",
-		"webpack": "catalog:",
-		"webpack-cli": "catalog:",
-		"webpack-merge": "catalog:",
-		"webpack-dev-middleware": "^6.1.1"
-	},
-	"publishConfig": {
-		"access": "public"
+		"vite": "catalog:"
 	}
 }

packages/controller/src/BaseConnection.ts

@@ -1,12 +1,12 @@
 import path from "path";
-import fs from "fs-extra";
+import fs from "node:fs/promises";
 
-import type Controller from "./Controller";
-import type WsServerConnector from "./WsServerConnector";
+import type Controller from "./Controller.js";
+import type WsServerConnector from "./WsServerConnector.js";
 
 import * as lib from "@clusterio/lib";
-const { logger } = lib;
-import * as routes from "./routes";
+import { logger } from "@clusterio/lib";
+import * as routes from "./routes.js";
 
 
 /**
@@ -32,6 +32,8 @@ export default class BaseConnection extends lib.Link {
 		this.handle(lib.ModPackGetRequest, this.handleModPackGetRequest.bind(this));
 		this.handle(lib.ModPackGetDefaultRequest, this.handleModPackGetDefaultRequest.bind(this));
 		this.handle(lib.ModDownloadRequest, this.handleModDownloadRequest.bind(this));
+		this.handle(lib.FactorioVersionsRequest, this.handleFactorioVersionsRequest.bind(this));
+		this.handle(lib.LatestReleasesRequest, this.handleLatestReleasesRequest.bind(this));
 
 		this.handle(lib.SubscriptionRequest, this.handleSubscriptionRequest.bind(this));
 		this.connector.on("close", () => {
@@ -61,7 +63,7 @@ export default class BaseConnection extends lib.Link {
 		let { id } = request;
 		let modPack = this._controller.modPacks.get(id);
 		if (!modPack) {
-			throw new lib.RequestError(`Mod pack with ID ${id} does not exist`);
+			throw new lib.NotFoundError(`Mod pack with ID ${id} does not exist`);
 		}
 		return modPack;
 	}
@@ -69,23 +71,23 @@ export default class BaseConnection extends lib.Link {
 	async handleModPackGetDefaultRequest(): Promise<lib.ModPack> {
 		let id = this._controller.config.get("controller.default_mod_pack_id");
 		if (id === null) {
-			throw new lib.RequestError("Default mod pack not set on controller");
+			throw new lib.ConflictError("Default mod pack not set on controller");
 		}
 		let modPack = this._controller.modPacks.get(id);
 		if (!modPack) {
-			throw new lib.RequestError(`Default mod pack configured (${id}) does not exist`);
+			throw new lib.NotFoundError(`Default mod pack configured (${id}) does not exist`);
 		}
 		return modPack;
 	}
 
-	getMod(mod: { name: string, version: lib.FullVersion, sha1?: string }) {
+	getMod(mod: { name: string, version: lib.SourceVersion, sha1?: string }) {
 		let filename = lib.ModInfo.filename(mod.name, mod.version);
 		let modInfo = this._controller.modStore.files.get(filename);
 		if (!modInfo) {
-			throw new lib.RequestError(`Mod ${filename} does not exist on controller`);
+			throw new lib.NotFoundError(`Mod ${filename} does not exist on controller`);
 		}
 		if (mod.sha1 && mod.sha1 !== modInfo.sha1) {
-			throw new lib.RequestError(`Mod ${filename} checksum does not match controller's checksum`);
+			throw new lib.ConflictError(`Mod ${filename} checksum does not match controller's checksum`);
 		}
 		return modInfo;
 	}
@@ -93,10 +95,12 @@ export default class BaseConnection extends lib.Link {
 	async handleModDownloadRequest(request: lib.ModDownloadRequest) {
 		let mod = this.getMod(request);
 		let modPath = path.join(this._controller.config.get("controller.mods_directory"), mod.filename);
+		// Open source file before creating the stream in case it throws.
+		let source = (await fs.open(modPath)).createReadStream();
 
 		let stream = await routes.createProxyStream(this._controller.app);
 		stream.filename = mod.filename;
-		stream.source = fs.createReadStream(modPath);
+		stream.source = source;
 		stream.mime = "application/zip";
 		stream.size = String(mod.size);
 
@@ -106,4 +110,12 @@ export default class BaseConnection extends lib.Link {
 	async handleSubscriptionRequest(request: lib.SubscriptionRequest, src: lib.Address, dst: lib.Address) {
 		return await this._controller.subscriptions.handleRequest(this, request, src, dst);
 	}
+
+	async handleFactorioVersionsRequest(request: lib.FactorioVersionsRequest) {
+		return await this._controller.factorioVersions.get(request.maxAgeMs);
+	}
+
+	async handleLatestReleasesRequest(request: lib.LatestReleasesRequest) {
+		return await this._controller.latestReleases.get(request.maxAgeMs);
+	}
 }

packages/controller/src/BaseControllerPlugin.ts

@@ -1,45 +1,35 @@
-import type {
-	CollectorResult, Event, InstanceStatus, Logger,
-	ModPack, ModInfo, PlayerEvent, PluginNodeEnvInfo,
-} from "@clusterio/lib";
-import type Controller from "./Controller";
-import type InstanceInfo from "./InstanceInfo";
-import type ControlConnection from "./ControlConnection";
-import type HostConnection from "./HostConnection";
+import type Controller from "./Controller.js";
+import type InstanceRecord from "./InstanceRecord.js";
+import type ControlConnection from "./ControlConnection.js";
+import type HostConnection from "./HostConnection.js";
+import * as lib from "@clusterio/lib";
+
+export type ControllerPluginContext = lib.PluginLoadContext<{
+	controller: Controller;
+	metrics: any;
+}>;
 
 /**
- * Base class for controller plugins
- *
- * Controller plugins are subclasses of this class which get instantiated by
- * the controller on startup when the plugin is enabled in the config.
- * To be discovered the class must be exported under the name `ControllerPlugin`
- * in the module specified by the `controllerEntrypoint` in the plugin's
- * `plugin` export.
+ * Collection of controller plugin hooks
  */
-export default class BaseControllerPlugin {
-	/**
-	 * Logger for this plugin
-	 *
-	 * Instance of winston Logger for sending log messages from this
-	 * plugin.  Supported methods and their corresponding log levels are
-	 * `error`, `warn`, `audit`, `info` and `verbose`.
-	 */
-	logger: Logger;
-
-	constructor(
-		public info: PluginNodeEnvInfo,
-		public controller: Controller,
-		public metrics: any,
-		logger: Logger
-	) {
-		this.logger = logger.child({ plugin: this.info.name }) as unknown as Logger;
+export class ControllerHooks extends lib.AsyncHookCollection {
+	constructor(logger: lib.Logger) {
+		super(logger);
+		this.save = this.newHook();
+		this.metrics = this.newHook();
+		this.shutdown = this.newHook();
+		this.instanceStatusChanged = this.newHook();
+		this.instanceConfigFieldChanged = this.newHook();
+		this.controllerConfigFieldChanged = this.newHook();
+		this.controlConnectionEvent = this.newHook();
+		this.hostConnectionEvent = this.newHook();
+		this.prepareHostDisconnect = this.newHook();
+		this.modPacksUpdated = this.newHook();
+		this.modsUpdated = this.newHook();
+		this.rolesUpdated = this.newHook();
+		this.playerEvent = this.newHook();
 	}
 
-	/**
-	 * Called immediately after the class is instantiated
-	 */
-	async init() { }
-
 	/**
 	 * Called when the controller saves data in memory to disk
 	 *
@@ -51,7 +41,7 @@ export default class BaseControllerPlugin {
 	 * BaseControllerPlugin.onShutdown} have been invoked and all links have
 	 * been disconnected.
 	 */
-	async onSaveData() { }
+	readonly save: lib.AsyncHook<[]>;
 
 	/**
 	 * Called when the status of an instance changes
@@ -91,7 +81,7 @@ export default class BaseControllerPlugin {
 	 *     The instance that changed.
 	 * @param prev - the previous status of the instance.
 	 */
-	async onInstanceStatusChanged(instance: InstanceInfo, prev?: InstanceStatus) { }
+	readonly instanceStatusChanged: lib.AsyncHook<[instance: InstanceRecord, prev: lib.InstanceStatus | undefined]>;
 
 	/**
 	 * Called when the value of a controller config field changed.
@@ -103,7 +93,7 @@ export default class BaseControllerPlugin {
 	 * @param curr - The current value of the field.
 	 * @param prev - The previous value of the field.
 	 */
-	async onControllerConfigFieldChanged(field: string, curr: unknown, prev: unknown) { }
+	readonly controllerConfigFieldChanged: lib.AsyncHook<[field: string, curr: unknown, prev: unknown]>;
 
 	/**
 	 * Called when the value of an instance config field changed.
@@ -117,7 +107,8 @@ export default class BaseControllerPlugin {
 	 * @param curr - The current value of the field.
 	 * @param prev - The previous value of the field.
 	 */
-	async onInstanceConfigFieldChanged(instance: InstanceInfo, field: string, curr: unknown, prev: unknown) { }
+	// eslint-disable-next-line @stylistic/max-len
+	readonly instanceConfigFieldChanged: lib.AsyncHook<[instance: InstanceRecord, field: string, curr: unknown, prev: unknown]>;
 
 	/**
 	 * Called before collecting Prometheus metrics
@@ -134,12 +125,12 @@ export default class BaseControllerPlugin {
 	 *
 	 * @returns an async iterator of prometheus metric results or undefined.
 	 */
-	async onMetrics(): Promise<void | AsyncIterable<CollectorResult>> { }
+	readonly metrics: lib.AsyncHook<[], AsyncIterable<lib.CollectorResult> | void>;
 
 	/**
 	 * Called when the controller is shutting down
 	 */
-	async onShutdown() { }
+	readonly shutdown: lib.AsyncHook<[]>;
 
 	/**
 	 * Called when an event on a host connection happens
@@ -174,7 +165,8 @@ export default class BaseControllerPlugin {
 	 *     The connection the event occured on.
 	 * @param event - one of connect, drop, resume and close
 	 */
-	onHostConnectionEvent(connection: HostConnection, event: "connect" | "drop" | "resume" | "close") { }
+	// eslint-disable-next-line @stylistic/max-len
+	readonly hostConnectionEvent: lib.AsyncHook<[connection: HostConnection, event: "connect" | "drop" | "resume" | "close"]>;
 
 	/**
 	 * Called when an avent on a control connection happens
@@ -210,7 +202,8 @@ export default class BaseControllerPlugin {
 	 *     The connection the event occured on.
 	 * @param event - one of connect, drop, resume, and close.
 	 */
-	onControlConnectionEvent(connection: ControlConnection, event: "connect" | "drop" | "resume" | "close") { }
+	// eslint-disable-next-line @stylistic/max-len
+	readonly controlConnectionEvent: lib.AsyncHook<[connection: ControlConnection, event: "connect" | "drop" | "resume" | "close"]>;
 
 	/**
 	 * Called when a host is preparing to disconnect from the controller
@@ -224,7 +217,7 @@ export default class BaseControllerPlugin {
 	 * @param connection -
 	 *     The connection to the host preparing to disconnect.
 	 */
-	async onPrepareHostDisconnect(connection: HostConnection) { }
+	readonly prepareHostDisconnect: lib.AsyncHook<[connection: HostConnection]>;
 
 	/**
 	 * Called when one or more mod packs are updated
@@ -237,7 +230,7 @@ export default class BaseControllerPlugin {
 	 *
 	 * @param modPacks - Mod packs that updated.
 	 */
-	async onModPacksUpdated(modPacks: ModPack[]) { }
+	readonly modPacksUpdated: lib.AsyncHook<[modPacks: lib.ModPack[]]>;
 
 	/**
 	 * Called when one or more mod stored on the controller are updated
@@ -249,7 +242,18 @@ export default class BaseControllerPlugin {
 	 *
 	 * @param mods - Mods that updated.
 	 */
-	async onModsUpdated(mods: ModInfo[]) { }
+	readonly modsUpdated: lib.AsyncHook<[mods: lib.ModInfo[]]>;
+
+	/**
+	 * Called when one or more roles stored on the controller are updated
+	 *
+	 * Invoked when one or more roles have been added, updated or deleted.
+	 *
+	 * If a role has been deleted its `.isDeleted` property will be true.
+	 *
+	 * @param roles - Roles that updated.
+	 */
+	readonly rolesUpdated: lib.AsyncHook<[roles: lib.Role[]]>;
 
 	/**
 	 * Called when a player joins or leaves an instance
@@ -261,7 +265,79 @@ export default class BaseControllerPlugin {
 	 *     The instance it occured on.
 	 * @param event - Information about the event.
 	 */
-	async onPlayerEvent(instance: InstanceInfo, event: PlayerEvent) { }
+	readonly playerEvent: lib.AsyncHook<[instance: InstanceRecord, event: lib.PlayerEvent]>;
+}
+
+// eslint-disable-next-line @typescript-eslint/no-unsafe-declaration-merging
+export interface BaseControllerPlugin {
+	onSaveData?(): Promise<void>;
+	onMetrics?(): Promise<void | AsyncIterable<lib.CollectorResult>>;
+	onShutdown?(): Promise<void>;
+	onInstanceStatusChanged?(instance: InstanceRecord, prev?: lib.InstanceStatus): Promise<void>;
+	onControllerConfigFieldChanged?(field: string, curr: unknown, prev: unknown): Promise<void>;
+	onInstanceConfigFieldChanged?(instance: InstanceRecord, field: string, curr: unknown, prev: unknown): Promise<void>;
+	onHostConnectionEvent?(connection: HostConnection, event: "connect" | "drop" | "resume" | "close"): void;
+	onControlConnectionEvent?(connection: ControlConnection, event: "connect" | "drop" | "resume" | "close"): void;
+	onPrepareHostDisconnect?(connection: HostConnection): Promise<void>;
+	onModPacksUpdated?(modPacks: lib.ModPack[]): Promise<void>;
+	onModsUpdated?(mods: lib.ModInfo[]): Promise<void>;
+	onRolesUpdated?(roles: lib.Role[]): Promise<void>;
+	onPlayerEvent?(instance: InstanceRecord, event: lib.PlayerEvent): Promise<void>;
+}
+
+/**
+ * Base class for controller plugins
+ *
+ * Controller plugins are subclasses of this class which get instantiated by
+ * the controller on startup when the plugin is enabled in the config.
+ * To be discovered the class must be exported under the name `ControllerPlugin`
+ * in the module specified by the `controllerEntrypoint` in the plugin's
+ * `plugin` export.
+ */
+// eslint-disable-next-line @typescript-eslint/no-unsafe-declaration-merging
+export class BaseControllerPlugin {
+	constructor(
+		public info: lib.PluginNodeEnvInfo,
+		public controller: Controller,
+		public metrics: any,
+		public logger: lib.Logger,
+	) {
+		const attach = <Args extends unknown[], Return>(
+			hook: lib.AsyncHook<Args, Return>,
+			fn?: lib.HookHandler<Args, Return>,
+		) => {
+			if (fn) {
+				hook.attach(info.name, fn.bind(this));
+			}
+		};
+
+		attach(controller.hooks.save, this.onSaveData);
+		attach(controller.hooks.instanceStatusChanged, this.onInstanceStatusChanged);
+		attach(controller.hooks.controllerConfigFieldChanged, this.onControllerConfigFieldChanged);
+		attach(controller.hooks.instanceConfigFieldChanged, this.onInstanceConfigFieldChanged);
+		attach(controller.hooks.metrics, this.onMetrics);
+		attach(controller.hooks.shutdown, this.onShutdown);
+		attach(controller.hooks.hostConnectionEvent, this.onHostConnectionEvent);
+		attach(controller.hooks.controlConnectionEvent, this.onControlConnectionEvent);
+		attach(controller.hooks.prepareHostDisconnect, this.onPrepareHostDisconnect);
+		attach(controller.hooks.modPacksUpdated, this.onModPacksUpdated);
+		attach(controller.hooks.modsUpdated, this.onModsUpdated);
+		attach(controller.hooks.rolesUpdated, this.onRolesUpdated);
+		attach(controller.hooks.playerEvent, this.onPlayerEvent);
+	}
+
+	static fromContext(context: ControllerPluginContext) {
+		return new this(context.plugin, context.controller, context.metrics, context.logger);
+	}
+
+	detachHooks() {
+		this.controller.hooks.detachAll(this.info.name);
+	}
+
+	/**
+	 * Called immediately after the class is instantiated
+	 */
+	async init() {}
 
 	/**
 	 * Broadcast event to all connected hosts
@@ -272,7 +348,7 @@ export default class BaseControllerPlugin {
 	 *
 	 * @param event - Event to send
 	 */
-	broadcastEventToHosts<T>(event: Event<T>) {
+	broadcastEventToHosts<T>(event: lib.Event<T>) {
 		for (let hostConnection of this.controller.wsServer.hostConnections.values()) {
 			if (
 				!hostConnection.connector.closing

packages/controller/src/ControllerRouter.ts

@@ -1,10 +1,10 @@
-import type Controller from "./Controller";
-import type BaseConnection from "./BaseConnection";
+import type Controller from "./Controller.js";
+import type BaseConnection from "./BaseConnection.js";
 
 import * as lib from "@clusterio/lib";
-import HostConnection from "./HostConnection";
-import ControlConnection from "./ControlConnection";
-const { logger } = lib;
+import { logger } from "@clusterio/lib";
+import HostConnection from "./HostConnection.js";
+import ControlConnection from "./ControlConnection.js";
 
 export default class ControllerRouter {
 	constructor(
@@ -74,7 +74,7 @@ export default class ControllerRouter {
 					return false;
 				}
 				origin.connector.sendResponseError(
-					new lib.ResponseError(msg || "Unroutable destination"), message.src
+					new lib.ResponseError(msg || "Unroutable destination", "UnavailableError"), message.src
 				);
 				return true;
 			}

packages/controller/src/ControllerUser.ts

@@ -1,96 +0,0 @@
-import { Static, Type } from "@sinclair/typebox";
-
-import {
-	IControllerUser, PermissionError, PlayerStats,
-	Role, SubscribableDatastore, User, permissions,
-} from "@clusterio/lib";
-
-export default class ControllerUser extends User implements IControllerUser {
-	constructor(
-		private _controllerRoles: SubscribableDatastore<Role>,
-		/** Unix time in seconds the user token must be issued after to be valid.  */
-		public tokenValidAfter = 0,
-		...args: ConstructorParameters<typeof User>
-	) {
-		super(...args);
-	}
-
-	static jsonSchema = Type.Object({
-		...User.jsonSchema.properties,
-		token_valid_after: Type.Optional(Type.Number()),
-	});
-
-	static fromJSON(json: Static<typeof this.jsonSchema>, controllerRoles: SubscribableDatastore<Role>) {
-		const roleIds = new Set<number>(json.roles ?? []);
-		const instanceStats = new Map(
-			(json.instance_stats ?? []).map(
-				([id, stats]) => [id, PlayerStats.fromJSON(stats)]
-			)
-		);
-		const playerStats = User._calculatePlayerStats(instanceStats);
-		return new this(
-			controllerRoles,
-			json.token_valid_after,
-			json.name,
-			roleIds,
-			new Set(json.instances),
-			json.is_admin,
-			json.is_banned,
-			json.is_whitelisted,
-			json.ban_reason,
-			json.updated_at_ms,
-			json.is_deleted,
-			playerStats,
-			instanceStats,
-		);
-	}
-
-	toJSON(controller?: boolean): Static<typeof ControllerUser.jsonSchema> {
-		if (!controller) {
-			return super.toJSON();
-		}
-
-		const json: Static<typeof ControllerUser.jsonSchema> = super.toJSON();
-		if (this.tokenValidAfter) {
-			json.token_valid_after = this.tokenValidAfter;
-		}
-
-		return json;
-	}
-
-	get roles(): ReadonlySet<Readonly<Role>> {
-		return new Set([...this.roleIds].map(
-			id => this._controllerRoles.get(id)
-		).filter(
-			(r): r is Role => Boolean(r)
-		));
-	}
-
-	/**
-	 * Invalidate current tokens for the user
-	 *
-	 * Sets the tokenValidAfter property to the current time, which causes
-	 * all currently issued tokens for the user to become invalid.
-	 */
-	invalidateToken() {
-		this.tokenValidAfter = Math.floor(Date.now() / 1000);
-	}
-
-	checkPermission(permission: string) {
-		if (!permissions.has(permission)) {
-			throw new Error(`permission ${permission} does not exist`);
-		}
-
-		for (let roleId of this.roleIds) {
-			let role = this._controllerRoles.get(roleId);
-			if (!role) {
-				continue;
-			}
-			if (role.permissions.has("core.admin") || role.permissions.has(permission)) {
-				return;
-			}
-		}
-
-		throw new PermissionError("Permission denied");
-	}
-}

packages/controller/src/HostConnection.ts

@@ -1,14 +1,17 @@
-import type Controller from "./Controller";
-import type WsServerConnector from "./WsServerConnector";
+import type Controller from "./Controller.js";
+import type WsServerConnector from "./WsServerConnector.js";
 
 import * as lib from "@clusterio/lib";
-const { logger } = lib;
+import { logger } from "@clusterio/lib";
 
-import BaseConnection from "./BaseConnection";
-import InstanceInfo from "./InstanceInfo";
-import HostInfo from "./HostInfo";
+import BaseConnection from "./BaseConnection.js";
+import InstanceRecord from "./InstanceRecord.js";
+import HostRecord from "./HostRecord.js";
 
 
+// How long log message warnings are suppressed for after one is logged.
+const logMessageWarnIntervalMs = 5 * 60 * 1000;
+
 /**
  * Represents the connection to a host
  *
@@ -16,8 +19,10 @@ import HostInfo from "./HostInfo";
  * @alias module:controller/src/HostConnection
  */
 export default class HostConnection extends BaseConnection {
-	private info: HostInfo;
+	private info: HostRecord;
 	plugins: Map<string, string>;
+	// Shared by all log message warnings, a misbehaving host could log in a loop.
+	private _lastLogMessageWarnMs = Number.NEGATIVE_INFINITY;
 
 	constructor(
 		registerData: lib.RegisterHostData,
@@ -29,35 +34,27 @@ export default class HostConnection extends BaseConnection {
 
 		this.plugins = new Map(Object.entries(registerData.plugins));
 
-		const previousHostInfo = this._controller.hosts.get(registerData.id);
-		this.info = new HostInfo(
-			registerData.id,
-			previousHostInfo?.name ?? "",
-			registerData.version,
-			this.plugins,
-			true,
-			remoteAddress,
-			previousHostInfo?.publicAddress,
-			previousHostInfo?.tokenValidAfter,
-			0,
-			false,
-		);
-		this._controller.hosts.set(this.info);
+		// Hosts are only created by approving them, WsServer rejects hosts without a record.
+		const record = this._controller.hosts.getMutable(registerData.id);
+		if (!record) {
+			throw new Error(`Host ${registerData.id} is not registered`);
+		}
+		record.version = registerData.version;
+		record.plugins = this.plugins;
+		record.connected = true;
+		record.remoteAddress = remoteAddress;
+		this.info = record;
+		this._controller.hosts.records.set(this.info);
 
 		this._checkPluginVersions();
 
 		for (let event of ["connect", "drop", "resume", "close"] as const) {
-
-			this.connector.on(event, () => {
-				for (let plugin of this._controller.plugins.values()) {
-					plugin.onHostConnectionEvent(this, event);
-				}
-			});
+			this.connector.on(event, () => this._controller.hooks.hostConnectionEvent.invoke(this, event));
 		}
 
 		this.connector.on("close", () => {
 			// Update status to unknown for instances on this host.
-			const instances: InstanceInfo[] = [];
+			const instances: InstanceRecord[] = [];
 			for (let instance of this._controller.instances.valuesMutable()) {
 				if (instance.config.get("instance.assigned_host") !== this.id) {
 					continue;
@@ -66,12 +63,12 @@ export default class HostConnection extends BaseConnection {
 				instances.push(instance);
 				let prev = instance.status;
 				instance.status = "unknown";
-				lib.invokeHook(this._controller.plugins, "onInstanceStatusChanged", instance, prev);
+				this._controller.hooks.instanceStatusChanged.invoke(instance, prev);
 			}
-			this._controller.instances.setMany(instances);
+			this._controller.instances.records.setMany(instances);
 
 			this.info.connected = false;
-			this._controller.hosts.set(this.info);
+			this.saveRecord();
 		});
 
 		this.handle(lib.GetFactorioCredentialsRequest, this.handleGetFactorioCredentialsRequest.bind(this));
@@ -143,7 +140,7 @@ export default class HostConnection extends BaseConnection {
 	}
 
 	async prepareDisconnect() {
-		await lib.invokeHook(this._controller.plugins, "onPrepareHostDisconnect", this);
+		await this._controller.hooks.prepareHostDisconnect.invoke(this);
 		return await super.prepareDisconnect();
 	}
 
@@ -175,10 +172,17 @@ export default class HostConnection extends BaseConnection {
 		return {};
 	}
 
+	/** Store changes to the host record, unless the host was revoked */
+	saveRecord() {
+		if (this._controller.hosts.getMutable(this.id) === this.info) {
+			this._controller.hosts.records.set(this.info);
+		}
+	}
+
 	async handleHostInfoUpdateEvent(event: lib.HostInfoUpdateEvent) {
 		this.info.name = event.update.name;
 		this.info.publicAddress = event.update.publicAddress;
-		this._controller.hosts.set(this.info);
+		this.saveRecord();
 	}
 
 	async handleInstanceStatusChangedEvent(request: lib.InstanceStatusChangedEvent) {
@@ -207,11 +211,16 @@ export default class HostConnection extends BaseConnection {
 
 		let prev = instance.status;
 		instance.status = request.status;
+		// If the instance has transitioned to running then updated the started at time
+		if (request.status === "running" && prev === "starting") {
+			instance.startedAtMs = Date.now();
+		}
+
 		instance.gamePort = request.gamePort;
 		instance.factorioVersion = request.factorioVersion;
-		this._controller.instances.set(instance);
+		this._controller.instances.records.set(instance);
 		logger.verbose(`Instance ${instance.config.get("instance.name")} State: ${instance.status}`);
-		await lib.invokeHook(this._controller.plugins, "onInstanceStatusChanged", instance, prev);
+		await this._controller.hooks.instanceStatusChanged.invoke(instance, prev);
 	}
 
 	async handleInstancesUpdateRequest(request: lib.InstancesUpdateRequest) {
@@ -225,7 +234,7 @@ export default class HostConnection extends BaseConnection {
 		}
 
 		// Assign instances the host has but controller does not
-		const instanceUpdates: InstanceInfo[] = [];
+		const instanceUpdates: InstanceRecord[] = [];
 		for (let instanceData of request.instances) {
 			const instanceConfig = new lib.InstanceConfig("controller");
 			instanceConfig.update(instanceData.config, false, "host");
@@ -246,41 +255,41 @@ export default class HostConnection extends BaseConnection {
 					controllerInstance.status = instanceData.status;
 					controllerInstance.gamePort = instanceData.gamePort;
 					controllerInstance.factorioVersion = instanceData.factorioVersion;
+					if (instanceData.status === "running" && prev === "starting") {
+						controllerInstance.startedAtMs = Date.now();
+					}
 					instanceUpdates.push(controllerInstance);
 					logger.verbose(`Instance ${instanceConfig.get("instance.name")} State: ${instanceData.status}`);
-					await lib.invokeHook(
-						this._controller.plugins, "onInstanceStatusChanged", controllerInstance, prev
-					);
+					await this._controller.hooks.instanceStatusChanged.invoke(controllerInstance, prev);
 				}
 				continue;
 			}
 
 			instanceConfig.set("instance.assigned_host", this.id);
-			let newInstance = new InstanceInfo(
-				instanceConfig,
-				instanceData.status,
-				instanceData.gamePort,
-				instanceData.factorioVersion,
-				Date.now(),
-			);
+			const newInstance = await this._controller.instances.createInstance(instanceConfig, true);
+			newInstance.factorioVersion = instanceData.factorioVersion;
+			newInstance.gamePort = instanceData.gamePort;
+			newInstance.status = instanceData.status;
 			instanceUpdates.push(newInstance);
-			this._controller.addInstanceHooks(newInstance);
-			await this.send(
-				new lib.InstanceAssignInternalRequest(
-					instanceConfig.get("instance.id"), instanceConfig.toRemote("host")
-				)
-			);
-			await lib.invokeHook(this._controller.plugins, "onInstanceStatusChanged", newInstance);
 		}
 
-		this._controller.instances.setMany(instanceUpdates);
+		// We suppress the changes made by createInstance so we must manually make them here
+		this._controller.instances.records.setMany(instanceUpdates);
+		await Promise.all(instanceUpdates.flatMap(newInstance => [
+			this._controller.hooks.instanceStatusChanged.invoke(newInstance, undefined),
+			this.send(
+				new lib.InstanceAssignInternalRequest(
+					newInstance.config.get("instance.id"), newInstance.config.toRemote("host")
+				)
+			),
+		]));
 
 		// Push lists to make sure they are in sync.
 		let adminlist: Set<string> = new Set();
 		let banlist: Map<string, string> = new Map();
 		let whitelist: Set<string> = new Set();
 
-		for (let user of this._controller.userManager.users.values()) {
+		for (let user of this._controller.users.values()) {
 			if (user.isAdmin) {
 				adminlist.add(user.id);
 			}
@@ -295,7 +304,37 @@ export default class HostConnection extends BaseConnection {
 		await this.send(new lib.SyncUserListsEvent(adminlist, banlist, whitelist));
 	}
 
+	// A host may only report on instances assigned to it. Otherwise any host
+	// could speak for an instance on a different host. See
+	// handleInstanceStatusChangedEvent.
+	private _assignedInstance(instanceId: number) {
+		const instance = this._controller.instances.get(instanceId);
+		return instance?.config.get("instance.assigned_host") === this.id ? instance : undefined;
+	}
+
+	// Host connections live for days, so the suppression expires instead of
+	// latching for the life of the connection.
+	private _warnLogMessage(message: string) {
+		const now = Date.now();
+		if (now - this._lastLogMessageWarnMs < logMessageWarnIntervalMs) {
+			return;
+		}
+		this._lastLogMessageWarnMs = now;
+		logger.warn(message);
+	}
+
 	async handleInstanceSaveDetailsUpdatesEvent(event: lib.InstanceSaveDetailsUpdatesEvent) {
+		// Otherwise any host could inject save records for, or wipe the save
+		// list of, an instance on a different host.
+		if (event.instanceId !== undefined && !this._assignedInstance(event.instanceId)) {
+			logger.warn(`Got bogus save updates for instance id ${event.instanceId}`);
+			return;
+		}
+		if (event.updates.some(save => !this._assignedInstance(save.instanceId))) {
+			logger.warn(`Got bogus save updates from host id ${this.id}`);
+			return;
+		}
+
 		const updates: lib.SaveDetails[] = [];
 		const deletes: lib.SaveDetails[] = [];
 		for (const save of event.updates) {
@@ -320,8 +359,33 @@ export default class HostConnection extends BaseConnection {
 	}
 
 	async handleLogMessageEvent(event: lib.LogMessageEvent) {
+		// Fields beyond level and message survive schema validation, so the
+		// instance a log line claims to come from is whatever the host sent.
+		const info: typeof event.info & { instance_id?: number, instance_name?: string } = { ...event.info };
+		if (info.instance_id !== undefined) {
+			const instance = this._assignedInstance(info.instance_id);
+			if (!instance) {
+				// Demote to a host level line instead of dropping it. The host did
+				// log this, it just does not get to pin it on someone else's
+				// instance, and a host racing a reassignment still gets heard.
+				this._warnLogMessage(`Got bogus log message for instance id ${info.instance_id}`);
+				delete info.instance_id;
+				delete info.instance_name;
+			} else {
+				// The name the host sent may be stale or made up, ours is authoritative.
+				const name = instance.config.get("instance.name");
+				if (info.instance_name !== name) {
+					this._warnLogMessage(
+						`Got log message for instance id ${info.instance_id} named ` +
+						`${info.instance_name} which is named ${name} on the controller`
+					);
+					info.instance_name = name;
+				}
+			}
+		}
+
 		this._controller.clusterLogger.log({
-			...event.info,
+			...info,
 			host_id: this.id,
 			host_name: this.info.name,
 		});
@@ -329,24 +393,21 @@ export default class HostConnection extends BaseConnection {
 
 	async handleInstancePlayerUpdateEvent(event: lib.InstancePlayerUpdateEvent, src: lib.Address) {
 		let instanceId = src.id;
-		let user = this._controller.userManager.getByName(event.name);
-		if (!user) {
-			user = this._controller.userManager.createUser(event.name);
-		}
+		const user = this._controller.users.getOrCreateUser(event.name);
 
 		if (event.type === "join") {
-			this._controller.userManager.notifyJoin(user, instanceId);
+			user.notifyJoin(instanceId);
 		} else if (event.type === "leave") {
-			this._controller.userManager.notifyLeave(user, instanceId);
+			user.notifyLeave(instanceId);
 		}
 
 		user.instanceStats.set(instanceId, event.stats);
 
 		user.recalculatePlayerStats();
-		this._controller.usersUpdated([user]);
+		user.saveRecord();
 
 		let instance = this._controller.instances.get(instanceId)!;
-		await lib.invokeHook(this._controller.plugins, "onPlayerEvent", instance, {
+		await this._controller.hooks.playerEvent.invoke(instance, {
 			type: event.type,
 			name: event.name,
 			reason: event.reason,
@@ -359,15 +420,11 @@ export default class HostConnection extends BaseConnection {
 			return;
 		}
 
-		let user = this._controller.userManager.getByName(event.name);
-		if (!user) {
-			user = this._controller.userManager.createUser(event.name);
-		}
+		const user = this._controller.users.getOrCreateUser(event.name);
+		user.set("isAdmin", event.admin);
 
-		user.isAdmin = event.admin;
-		this._controller.usersUpdated([user]);
 		const instance = this._controller.instances.get(src.id)!;
-		await lib.invokeHook(this._controller.plugins, "onPlayerEvent", instance, {
+		await this._controller.hooks.playerEvent.invoke(instance, {
 			type: event.admin ? "promote" : "demote" as lib.PlayerEvent["type"],
 			name: event.name,
 			stats: user.instanceStats.get(src.id)!,
@@ -379,20 +436,17 @@ export default class HostConnection extends BaseConnection {
 			return;
 		}
 
-		let user = this._controller.userManager.getByName(event.name);
-		if (!user) {
-			user = this._controller.userManager.createUser(event.name);
-		}
-
+		const user = this._controller.users.getOrCreateUser(event.name);
 		user.isBanned = event.banned;
 		user.banReason = event.reason;
-		this._controller.usersUpdated([user]);
+		user.saveRecord();
+
 		const instance = this._controller.instances.get(src.id)!;
-		await lib.invokeHook(this._controller.plugins, "onPlayerEvent", instance, {
+		await this._controller.hooks.playerEvent.invoke(instance, {
 			type: event.banned ? "ban" : "unban" as lib.PlayerEvent["type"],
 			name: event.name,
 			stats: user.instanceStats.get(src.id)!,
-			resaon: event.reason,
+			reason: event.reason,
 		});
 	}
 
@@ -401,15 +455,11 @@ export default class HostConnection extends BaseConnection {
 			return;
 		}
 
-		let user = this._controller.userManager.getByName(event.name);
-		if (!user) {
-			user = this._controller.userManager.createUser(event.name);
-		}
+		const user = this._controller.users.getOrCreateUser(event.name);
+		user.set("isWhitelisted", event.whitelisted);
 
-		user.isWhitelisted = event.whitelisted;
-		this._controller.usersUpdated([user]);
 		const instance = this._controller.instances.get(src.id)!;
-		await lib.invokeHook(this._controller.plugins, "onPlayerEvent", instance, {
+		await this._controller.hooks.playerEvent.invoke(instance, {
 			type: event.whitelisted ? "whitelisted" : "unwhitelisted" as lib.PlayerEvent["type"],
 			name: event.name,
 			stats: user.instanceStats.get(src.id)!,

packages/controller/src/HostManager.ts

@@ -0,0 +1,149 @@
+import crypto from "node:crypto";
+import jwt from "jsonwebtoken";
+
+import * as lib from "@clusterio/lib";
+import { logger } from "@clusterio/lib";
+
+import type Controller from "./Controller.js";
+import HostRecord from "./HostRecord.js";
+
+/**
+ * Access layer for hosts on the controller.
+ *
+ * @alias module:controller/src/HostManager
+ */
+export default class HostManager {
+	constructor(
+		public readonly records: lib.SubscribableDatastore<HostRecord>,
+		private readonly _controller: Controller,
+	) { }
+
+	/* ------------------------------------------------------------------------- */
+	/* Basic Accessors                                                           */
+	/* ------------------------------------------------------------------------- */
+
+	has(id: HostRecord["id"]): boolean {
+		return this.records.has(id);
+	}
+
+	getMutable(id: HostRecord["id"]): HostRecord | undefined {
+		return this.records.getMutable(id);
+	}
+
+	get(id: HostRecord["id"]): Readonly<HostRecord> | undefined {
+		return this.records.get(id);
+	}
+
+	valuesMutable(): IterableIterator<HostRecord> {
+		return this.records.values();
+	}
+
+	values(): IterableIterator<Readonly<HostRecord>> {
+		return this.valuesMutable();
+	}
+
+	/**
+	 * Get host by ID for a request.
+	 *
+	 * @param hostId - ID of host to get.
+	 * @returns The host record.
+	 * @throws {module:lib.NotFoundError} if the host does not exist.
+	 */
+	getForRequest(hostId: number): HostRecord {
+		const host = this.records.getMutable(hostId);
+		if (!host) {
+			throw new lib.NotFoundError(`Unknown host id (${hostId})`);
+		}
+		return host;
+	}
+
+	/* ------------------------------------------------------------------------- */
+	/* Lifecycle                                                                 */
+	/* ------------------------------------------------------------------------- */
+
+	/**
+	 * Create a host record with a new random id
+	 *
+	 * @param name - Name of the host.
+	 * @returns the created host record.
+	 */
+	createHost(name: string): HostRecord {
+		let hostId;
+		do {
+			hostId = crypto.randomInt(1, 2 ** 31);
+		} while (this.records.has(hostId));
+
+		const host = new HostRecord(
+			hostId, name, "", new Map(), false, "", "", Math.floor(Date.now() / 1000),
+		);
+		this.records.set(host);
+		return host;
+	}
+
+	/**
+	 * Delete a host, disconnect it and unassign its instances
+	 *
+	 * @param hostId - ID of host to revoke.
+	 * @param revokedBy - Name of the user revoking it, for logging.
+	 */
+	async revokeHost(hostId: number, revokedBy: string) {
+		const host = this.getForRequest(hostId);
+		this.records.delete(host);
+		this._controller.deleteNote("host", hostId, revokedBy);
+		const system = this._controller.systems.getMutable(hostId);
+		if (system) {
+			this._controller.systems.delete(system);
+		}
+
+		// Disconnected first so unassigning the instances does not depend on the host responding.
+		const hostConnection = this._controller.wsServer.hostConnections.get(hostId);
+		if (hostConnection) {
+			hostConnection.connector.terminate();
+		}
+		const assigned = [...this._controller.instances.values()].filter(
+			instance => instance.config.get("instance.assigned_host") === hostId
+		);
+		for (const instance of assigned) {
+			await this._controller.instances.unassignInstance(instance.id);
+		}
+		logger.audit(`User ${revokedBy} revoked host ${host.name} (${host.id})`);
+	}
+
+	/* ------------------------------------------------------------------------- */
+	/* Helpers                                                                   */
+	/* ------------------------------------------------------------------------- */
+
+	/**
+	 * Sign access token for the given host
+	 *
+	 * @param hostId - ID of host to sign token for.
+	 * @returns JWT access token for the host.
+	 */
+	signHostToken(hostId: number): string {
+		return jwt.sign({ aud: "host", host: hostId }, this._controller.authSecret);
+	}
+
+	/**
+	 * Check a host token
+	 *
+	 * @param token - Host token to check.
+	 * @returns the host the token was issued to.
+	 * @throws if the token is invalid, its host is not registered or it was issued before tokenValidAfter.
+	 */
+	verifyHostToken(token: string): HostRecord {
+		// migrate: allow pre-rename tokens issued to hosts before alpha-14
+		const payload = jwt.verify(token, this._controller.authSecret, { audience: ["host", "slave"] });
+		if (typeof payload === "string") {
+			throw new Error("unexpected JsonWebToken type");
+		}
+		const hostId = payload.host !== undefined ? payload.host : payload.slave;
+		const host = this.records.getMutable(hostId);
+		if (!host) {
+			throw new Error("host is not registered, start the host again to request to join the cluster");
+		}
+		if (!payload.iat || payload.iat < host.tokenValidAfter) {
+			throw new Error("invalid token");
+		}
+		return host;
+	}
+}

packages/controller/src/HostPairingManager.ts

@@ -0,0 +1,299 @@
+import type Controller from "./Controller.js";
+
+import crypto from "crypto";
+import net from "net";
+
+import * as lib from "@clusterio/lib";
+import { logger } from "@clusterio/lib";
+
+/** Symbols used in pairing codes, avoids 0/O and 1/I/L */
+const codeAlphabet = "23456789ABCDEFGHJKMNPQRSTUVWXYZ";
+const codeLength = 6;
+
+/** Time a request is kept after the last poll from the host */
+export const pollTimeoutMs = 30e3;
+/** Maximum number of pending requests from one address */
+export const maxPendingPerAddress = 3;
+/** Maximum length of a host name */
+export const maxNameLength = 100;
+/** Control and bidirectional override characters refused in host names */
+const nameControlCharacters = /[\p{Cc}\u202a-\u202e\u2066-\u2069]/u;
+
+/** Result of an approved request, sent to the host */
+export interface HostPairingResult {
+	hostId: number,
+	token: string,
+	name: string,
+}
+
+/** Error with an HTTP status code to respond to the host with */
+export class HostPairingError extends Error {
+	constructor(
+		message: string,
+		public status: number,
+		/** Seconds to wait before trying again, for status 429 */
+		public retryAfter?: number,
+	) {
+		super(message);
+	}
+}
+
+type PairingRequest = {
+	/** Secret the host polls with, never shown to users */
+	secret: string,
+	details: lib.HostPairingDetails,
+	/** Address with IPv6 addresses grouped by /64, used for limits */
+	addressKey: string,
+	lastPollMs: number,
+} & (
+	{ state: "pending" | "rejected" } | { state: "approved", result: HostPairingResult }
+);
+
+/**
+ * Strips the IPv4 mapped prefix and groups IPv6 addresses by their /64
+ *
+ * @param address - Address to make a key for
+ * @returns key used to count requests from an address.
+ */
+export function addressKey(address: string) {
+	if (address.startsWith("::ffff:") && net.isIPv4(address.slice(7))) {
+		return address.slice(7);
+	}
+	if (!net.isIPv6(address)) {
+		return address;
+	}
+	const [head, tail = ""] = address.split("::");
+	const headParts = head ? head.split(":") : [];
+	const tailParts = tail ? tail.split(":") : [];
+	const missing = 8 - headParts.length - tailParts.length;
+	const parts = address.includes("::")
+		? [...headParts, ...new Array(missing).fill("0"), ...tailParts]
+		: headParts;
+	return `${parts.slice(0, 4).map(part => part.toLowerCase().replace(/^0+(?=.)/, "")).join(":")}::/64`;
+}
+
+/**
+ * Normalise a pairing code typed by a user
+ *
+ * @param code - Code as typed, may contain dashes and lower case letters.
+ * @returns code formatted as shown by the host.
+ */
+export function normaliseCode(code: string) {
+	const plain = code.toUpperCase().replace(/[^0-9A-Z]/g, "");
+	return `${plain.slice(0, 3)}-${plain.slice(3)}`;
+}
+
+function generateCode() {
+	let code = "";
+	for (let i = 0; i < codeLength; i++) {
+		code += codeAlphabet[crypto.randomInt(codeAlphabet.length)];
+	}
+	return normaliseCode(code);
+}
+
+/**
+ * Keeps track of requests from hosts to join the cluster
+ *
+ * Requests only live in memory, and only while the host keeps polling
+ * for the result.
+ */
+export default class HostPairingManager {
+	/** Pending requests by code, broadcast to subscribed control links */
+	records = new lib.SubscribableDatastore<lib.HostPairingDetails>();
+	private _bySecret = new Map<string, PairingRequest>();
+	private _byCode = new Map<string, PairingRequest>();
+	private _pruneInterval?: ReturnType<typeof setInterval>;
+
+	constructor(
+		private _controller: Controller,
+	) { }
+
+	start() {
+		this._pruneInterval = setInterval(() => this.prune(), 5e3);
+		this._pruneInterval.unref();
+	}
+
+	stop() {
+		clearInterval(this._pruneInterval);
+		this._pruneInterval = undefined;
+	}
+
+	/**
+	 * Check and trim a host name given by a host or a user
+	 *
+	 * @param name - Name to check.
+	 * @returns the trimmed name.
+	 */
+	static validateName(name: unknown) {
+		if (typeof name !== "string" || !name.trim()) {
+			throw new HostPairingError("Host name is required", 400);
+		}
+		const trimmed = name.trim();
+		if (trimmed.length > maxNameLength) {
+			throw new HostPairingError(`Host name must be at most ${maxNameLength} characters`, 400);
+		}
+		// Names come from unauthenticated requests and are printed to terminals and logs.
+		if (nameControlCharacters.test(trimmed)) {
+			throw new HostPairingError("Host name may not contain control characters", 400);
+		}
+		return trimmed;
+	}
+
+	/**
+	 * Create a pending request
+	 *
+	 * @param name - Name the host asked for.
+	 * @param version - Version of the host.
+	 * @param remoteAddress - Address the request came from.
+	 * @returns the secret to poll with and the code to show the user.
+	 */
+	create(name: string, version: string, remoteAddress: string) {
+		this.prune();
+		const key = addressKey(remoteAddress);
+		const now = Date.now();
+		const pendingFromAddress = [...this._bySecret.values()].filter(
+			request => request.addressKey === key && request.state === "pending"
+		).length;
+		if (pendingFromAddress >= maxPendingPerAddress) {
+			throw new HostPairingError("Too many pending requests from this address", 429, 30);
+		}
+		const maxPending = this._controller.config.get("controller.host_pairing_max_pending");
+		if (maxPending && this.records.size >= maxPending) {
+			throw new HostPairingError("Too many pending requests", 429, 30);
+		}
+
+		let code;
+		do {
+			code = generateCode();
+		} while (this._byCode.has(code));
+
+		const request: PairingRequest = {
+			secret: crypto.randomBytes(32).toString("base64url"),
+			details: new lib.HostPairingDetails(code, name, remoteAddress, version, now),
+			addressKey: key,
+			lastPollMs: now,
+			state: "pending",
+		};
+		this._bySecret.set(request.secret, request);
+		this._byCode.set(code, request);
+		this.records.set(request.details);
+		logger.verbose(`Host pairing request ${code} for "${name}" from ${remoteAddress}`);
+		return { requestId: request.secret, code };
+	}
+
+	/**
+	 * Poll for the result of a request
+	 *
+	 * @param secret - Request id returned when the request was created.
+	 * @returns the result if the request was approved, or null if still pending.
+	 */
+	poll(secret: string): HostPairingResult | null {
+		this.prune();
+		const request = this._bySecret.get(secret);
+		if (!request) {
+			throw new HostPairingError("Request not found", 404);
+		}
+		request.lastPollMs = Date.now();
+		if (request.state === "approved") {
+			this._remove(request);
+			return request.result;
+		}
+		if (request.state === "rejected") {
+			this._remove(request);
+			throw new HostPairingError("Request was rejected", 403);
+		}
+		return null;
+	}
+
+	/**
+	 * Cancel a pending request
+	 *
+	 * @param secret - Request id returned when the request was created.
+	 */
+	cancel(secret: string) {
+		const request = this._bySecret.get(secret);
+		if (request && request.state === "pending") {
+			logger.verbose(`Host pairing request ${request.details.code} cancelled by the host`);
+			this._remove(request);
+		}
+	}
+
+	private _pending(code: string) {
+		this.prune();
+		const request = this._byCode.get(normaliseCode(code));
+		if (!request || request.state !== "pending") {
+			throw new lib.NotFoundError(`No pending host request with code ${code}`);
+		}
+		return request;
+	}
+
+	/**
+	 * Approve a pending request, creating the host
+	 *
+	 * @param code - Code of the request.
+	 * @param name - Name to give the host, defaults to the requested name.
+	 * @param approvedBy - Name of the user approving it, for logging.
+	 * @returns the id of the new host.
+	 */
+	approve(code: string, name: string | undefined, approvedBy: string) {
+		const request = this._pending(code);
+		let hostName;
+		try {
+			hostName = name === undefined ? request.details.name : HostPairingManager.validateName(name);
+		} catch (err: any) {
+			throw new lib.ValidationError(err.message);
+		}
+
+		const host = this._controller.hosts.createHost(hostName);
+		const result = { hostId: host.id, token: this._controller.hosts.signHostToken(host.id), name: host.name };
+		Object.assign(request, { state: "approved", result });
+		this.records.delete(request.details);
+		logger.audit(
+			`User ${approvedBy} approved host ${result.name} (${result.hostId}) with code ` +
+			`${request.details.code} from ${request.details.remoteAddress}`
+		);
+		return result.hostId;
+	}
+
+	/**
+	 * Reject a pending request
+	 *
+	 * @param code - Code of the request.
+	 * @param rejectedBy - Name of the user rejecting it, for logging.
+	 */
+	reject(code: string, rejectedBy: string) {
+		const request = this._pending(code);
+		request.state = "rejected";
+		this.records.delete(request.details);
+		logger.audit(
+			`User ${rejectedBy} rejected host ${request.details.name} with code ` +
+			`${request.details.code} from ${request.details.remoteAddress}`
+		);
+	}
+
+	private _remove(request: PairingRequest) {
+		this._bySecret.delete(request.secret);
+		this._byCode.delete(request.details.code);
+		this.records.delete(request.details);
+	}
+
+	/** Remove requests the host stopped polling for or that waited too long */
+	prune() {
+		const now = Date.now();
+		const timeoutMs = this._controller.config.get("controller.host_pairing_timeout") * 1000;
+		for (const request of this._bySecret.values()) {
+			const timedOut = request.state === "pending" && timeoutMs > 0
+				&& now - request.details.createdAtMs > timeoutMs;
+			if (!timedOut && now - request.lastPollMs <= pollTimeoutMs) {
+				continue;
+			}
+			if (request.state === "approved") {
+				logger.warn(
+					`Approved host ${request.result.name} (${request.result.hostId}) was never picked up ` +
+					"by the host, revoke it on the hosts page if it is not needed"
+				);
+			}
+			this._remove(request);
+		}
+	}
+}

packages/controller/src/HostRecord.ts

@@ -1,10 +1,8 @@
 import { Type, Static } from "@sinclair/typebox";
 import { HostDetails } from "@clusterio/lib";
 
-/**
- * Info about a host known to the controller.
- */
-export default class HostInfo {
+/** Underlying data class for hosts on the controller */
+export default class HostRecord {
 	constructor(
 		/** Id of this host */
 		public id: number,
@@ -33,12 +31,12 @@ export default class HostInfo {
 		"name": Type.String(),
 		"version": Type.String(),
 		"plugins": Type.Record(Type.String(), Type.String()),
-		"connected": Type.Boolean(),
-		"remote_address": Type.String(),
-		"public_address": Type.String(),
-		"token_valid_after": Type.Number(),
-		"updated_at_ms": Type.Number(),
-		"is_deleted": Type.Boolean(),
+		"connected": Type.Optional(Type.Boolean()),
+		"remote_address": Type.Optional(Type.String()),
+		"public_address": Type.Optional(Type.String()),
+		"token_valid_after": Type.Optional(Type.Number()),
+		"updated_at_ms": Type.Optional(Type.Number()),
+		"is_deleted": Type.Optional(Type.Boolean()),
 	});
 
 	static fromJSON(json: Static<typeof this.jsonSchema>) {
@@ -56,19 +54,50 @@ export default class HostInfo {
 		);
 	}
 
-	toJSON(): Static<typeof HostInfo.jsonSchema> {
-		return {
+	toJSON() {
+		const json = {
 			id: this.id,
 			name: this.name,
 			version: this.version,
 			plugins: Object.fromEntries(this.plugins),
-			connected: this.connected,
-			remote_address: this.remoteAddress,
-			public_address: this.publicAddress,
-			token_valid_after: this.tokenValidAfter,
-			updated_at_ms: this.updatedAtMs,
-			is_deleted: this.isDeleted,
-		};
+		} as Static<typeof HostRecord.jsonSchema>;
+
+		if (this.connected !== false) {
+			json.connected = this.connected;
+		}
+		if (this.remoteAddress !== "") {
+			json.remote_address = this.remoteAddress;
+		}
+		if (this.publicAddress !== "") {
+			json.public_address = this.publicAddress;
+		}
+		if (this.tokenValidAfter !== 0) {
+			json.token_valid_after = this.tokenValidAfter;
+		}
+		if (this.updatedAtMs !== 0) {
+			json.updated_at_ms = this.updatedAtMs;
+		}
+		if (this.isDeleted !== false) {
+			json.is_deleted = this.isDeleted;
+		}
+
+		return json;
+	}
+
+
+	static fromHostDetails(details: HostDetails, plugins: Map<string, string>) {
+		return new HostRecord(
+			details.id,
+			details.name,
+			details.version,
+			plugins,
+			details.connected,
+			details.remoteAddress,
+			details.publicAddress,
+			details.tokenValidAfter,
+			details.updatedAtMs,
+			details.isDeleted,
+		);
 	}
 
 	toHostDetails() {
@@ -85,4 +114,3 @@ export default class HostInfo {
 		);
 	}
 }
-

packages/controller/src/InstanceManager.ts

@@ -0,0 +1,556 @@
+import { isDeepStrictEqual } from "node:util";
+import * as lib from "@clusterio/lib";
+import { logger } from "@clusterio/lib";
+
+import type Controller from "./Controller.js";
+import type HostConnection from "./HostConnection.js";
+import InstanceRecord from "./InstanceRecord.js";
+
+type InheritedFields = lib.InstanceConfigFields["instance.inherited_fields"];
+type InheritableField = keyof lib.InstanceConfigFields & string;
+
+export default class InstanceManager {
+	private static readonly DefaultFactorioSettings = {
+		tags: ["clusterio"],
+		max_players: 0,
+		visibility: { public: true, lan: true },
+		game_password: "",
+		require_user_verification: true,
+		max_upload_in_kilobytes_per_second: 0,
+		max_upload_slots: 5,
+		ignore_player_limit_for_returning_players: false,
+		allow_commands: "admins-only",
+		autosave_interval: 10,
+		autosave_slots: 5,
+		afk_autokick_interval: 0,
+		auto_pause: false,
+		only_admins_can_pause_the_game: true,
+		autosave_only_on_server: true,
+		non_blocking_saving: false,
+	} as const;
+
+	/** Non-zero while template values are being copied into inheriting instances */
+	private _inheriting = 0;
+
+	constructor(
+		public readonly records: lib.SubscribableDatastore<InstanceRecord>,
+		private readonly _controller: Controller,
+	) {
+		for (const instance of records.values()) {
+			this.addInstanceHooks(instance);
+		}
+	}
+
+	/* ------------------------------------------------------------------------- */
+	/* Basic Accessors                                                           */
+	/* ------------------------------------------------------------------------- */
+
+	has(id: InstanceRecord["id"]): boolean {
+		return this.records.has(id);
+	}
+
+	getMutable(id: InstanceRecord["id"]): InstanceRecord | undefined {
+		return this.records.get(id);
+	}
+
+	get(id: InstanceRecord["id"]): Readonly<InstanceRecord> | undefined {
+		return this.getMutable(id);
+	}
+
+	valuesMutable(): IterableIterator<InstanceRecord> {
+		return this.records.values();
+	}
+
+	values(): IterableIterator<Readonly<InstanceRecord>> {
+		return this.valuesMutable();
+	}
+
+	/**
+	 * Get instance by ID for a request.
+	 *
+	 * Convenience wrapper around {@link getMutable} that throws
+	 * if the instance does not exist.
+	 *
+	 * @param instanceId - ID of instance to get.
+	 * @returns The instance record.
+	 * @throws {module:lib.NotFoundError} if the instance does not exist.
+	 */
+	getForRequest(instanceId: number): InstanceRecord {
+		const instance = this.records.get(instanceId);
+		if (!instance) {
+			throw new lib.NotFoundError(`Instance with ID ${instanceId} does not exist`);
+		}
+		return instance;
+	}
+
+	/* ------------------------------------------------------------------------- */
+	/* Internal Helpers                                                          */
+	/* ------------------------------------------------------------------------- */
+
+	private async _notifyStatusChanged(
+		instance: InstanceRecord,
+		prev?: lib.InstanceStatus,
+	): Promise<void> {
+		await this._controller.hooks.instanceStatusChanged.invoke(instance, prev);
+	}
+
+	private async _notifyConfigFieldChanged(
+		instance: InstanceRecord,
+		field: string,
+		curr: unknown,
+		prev: unknown,
+	): Promise<void> {
+		await this._controller.hooks.instanceConfigFieldChanged.invoke(instance, field, curr, prev);
+	}
+
+	/**
+	 * Attach change listeners to an instance record.
+	 *
+	 * Hooks into configuration field changes and ensures the datastore
+	 * is updated and plugins are notified when a config field changes.
+	 *
+	 * @param instance - The instance record to attach hooks to.
+	 * @internal
+	 */
+	addInstanceHooks(instance: InstanceRecord): void {
+		instance.config.on("fieldChanged", (field: string, curr: unknown, prev: unknown) => {
+			if (field === "instance.template_id") {
+				this._linkMatchingFields(instance);
+			} else if (!this._inheriting && instance.config.isInherited(field)) {
+				this._unlinkEditedField(instance, field, curr, prev);
+			}
+			this.records.set(instance);
+			this._notifyConfigFieldChanged(instance, field, curr, prev);
+			this._updateInheritors(instance, field, curr);
+		});
+	}
+
+	/* ------------------------------------------------------------------------- */
+	/* Inheritance                                                               */
+	/* ------------------------------------------------------------------------- */
+
+	/**
+	 * Get the instances that inherit directly from the given template.
+	 *
+	 * @param templateId - ID of the template.
+	 * @returns Instances with `instance.template_id` set to templateId.
+	 */
+	inheritorsOf(templateId: number): InstanceRecord[] {
+		return [...this.records.values()].filter(
+			instance => instance.config.get("instance.template_id") === templateId
+		);
+	}
+
+	/**
+	 * Check that new values for `instance.is_template` and `instance.template_id` are allowed.
+	 *
+	 * @param config - Current config of the instance.
+	 * @param isTemplate - New value for `instance.is_template`.
+	 * @param templateId - New value for `instance.template_id`.
+	 * @throws {module:lib.ValidationError} if the template is not a template or would create a cycle.
+	 * @throws {module:lib.ConflictError} if the instance is assigned or still has inheritors.
+	 */
+	checkInheritance(config: lib.InstanceConfig, isTemplate: boolean, templateId: number | null): void {
+		const instanceId = config.get("instance.id");
+		if (isTemplate && config.get("instance.assigned_host") !== null) {
+			throw new lib.ConflictError("Instance must be unassigned before it can be made a template");
+		}
+		if (!isTemplate && config.get("instance.is_template")) {
+			const count = this.inheritorsOf(instanceId).length;
+			if (count) {
+				throw new lib.ConflictError(`Instance is the template of ${count} other instance(s)`);
+			}
+		}
+		if (templateId === null) {
+			return;
+		}
+		const template = this.records.get(templateId);
+		if (!template) {
+			throw new lib.NotFoundError(`Instance with ID ${templateId} does not exist`);
+		}
+		if (!template.config.get("instance.is_template")) {
+			throw new lib.ValidationError(`Instance ${template.config.get("instance.name")} is not a template`);
+		}
+		const visited = new Set<number>();
+		for (let id: number | null = templateId; id !== null && !visited.has(id);) {
+			if (id === instanceId) {
+				throw new lib.ValidationError("Templates cannot inherit from themselves");
+			}
+			visited.add(id);
+			id = this.records.get(id)?.config.get("instance.template_id") ?? null;
+		}
+	}
+
+	/**
+	 * Copy the inheritable values from the template set in `instance.template_id`
+	 * into a config that is not yet part of the cluster and mark them inherited.
+	 *
+	 * @param config - Config of the instance to be created.
+	 * @param own - Fields set by the creator, object fields keep their properties as overrides.
+	 */
+	applyTemplate(config: lib.InstanceConfig, own: string[] = []): void {
+		const template = this._templateOf(config);
+		if (!template) {
+			return;
+		}
+		const inherited: InheritedFields = {};
+		for (const name of InstanceManager._inheritableFields()) {
+			const def = lib.InstanceConfig.fieldDefinitions[name];
+			if (def.type === "object") {
+				inherited[name] = own.includes(name) ? Object.keys(config.get(name) as object ?? {}) : [];
+			} else if (!own.includes(name)) {
+				inherited[name] = true;
+			}
+		}
+		config.set("instance.inherited_fields", inherited);
+		config.update(InstanceManager._inheritedValues(config, template.config, Object.keys(inherited)), false);
+	}
+
+	/**
+	 * Make a field, or a property of an object field, take its value from the template again.
+	 *
+	 * @param instanceId - ID of the instance to update.
+	 * @param field - Name of the field to inherit.
+	 * @param prop - Property of an object field to inherit, inherits all properties if not given.
+	 * @throws {module:lib.ValidationError} if the instance has no template or the field cannot be inherited.
+	 */
+	inheritField(instanceId: number, field: string, prop?: string): void {
+		const instance = this.getForRequest(instanceId);
+		if (!this._templateOf(instance.config)) {
+			throw new lib.ValidationError("Instance does not have a template");
+		}
+		if (!lib.InstanceConfig.isInheritable(field)) {
+			throw new lib.ValidationError(`Field ${field} cannot be inherited`);
+		}
+		const name = field as InheritableField;
+		const inherited = { ...instance.config.get("instance.inherited_fields") };
+		if (lib.InstanceConfig.fieldDefinitions[name].type !== "object") {
+			inherited[field] = true;
+		} else if (prop === undefined) {
+			inherited[field] = [];
+		} else {
+			const entry = inherited[field];
+			const overrides = entry instanceof Array ? entry : Object.keys(instance.config.get(name) as object ?? {});
+			inherited[field] = overrides.filter(p => p !== prop);
+		}
+		instance.config.set("instance.inherited_fields", inherited);
+		this._copyInheritedValues(instance, [field]);
+	}
+
+	/**
+	 * Stop inheriting the given field or properties, used when a value is explicitly set.
+	 *
+	 * @param instance - Instance the field was set on.
+	 * @param field - Name of the field set.
+	 * @param props - Properties set on an object field.
+	 */
+	overrideField(instance: InstanceRecord, field: string, props?: string[]): void {
+		const entry = instance.config.get("instance.inherited_fields")[field];
+		if (!instance.config.isInherited(field)) {
+			return;
+		}
+		const inherited = { ...instance.config.get("instance.inherited_fields") };
+		if (entry instanceof Array && props) {
+			inherited[field] = [...new Set([...entry, ...props])];
+		} else {
+			delete inherited[field];
+		}
+		instance.config.set("instance.inherited_fields", inherited);
+	}
+
+	private _templateOf(config: lib.InstanceConfig) {
+		const templateId = config.get("instance.template_id");
+		return templateId !== null ? this.records.get(templateId) : undefined;
+	}
+
+	private static _inheritableFields() {
+		return Object.keys(lib.InstanceConfig.fieldDefinitions).filter(
+			name => lib.InstanceConfig.isInheritable(name)
+		) as InheritableField[];
+	}
+
+	/** Default value of a field for the given config */
+	private static _defaultValue(name: InheritableField, config: lib.InstanceConfig): unknown {
+		const def = lib.InstanceConfig.fieldDefinitions[name];
+		if (name === "factorio.settings") {
+			return InstanceManager.DefaultFactorioSettings;
+		}
+		return typeof def.initialValue === "function" ? def.initialValue(config) : def.initialValue ?? null;
+	}
+
+	/** Values the given inherited fields take from the template, with object overrides applied */
+	private static _inheritedValues(config: lib.InstanceConfig, template: lib.InstanceConfig, fields: string[]) {
+		const inherited = config.get("instance.inherited_fields");
+		const values: Record<string, any> = {};
+		for (const field of fields) {
+			const name = field as InheritableField;
+			const entry = inherited[field];
+			if (!entry) {
+				continue;
+			}
+			const value = structuredClone(template.get(name)) as any;
+			if (entry instanceof Array) {
+				const own = config.get(name) as Record<string, unknown> ?? {};
+				for (const prop of entry) {
+					if (Object.hasOwn(own, prop)) {
+						value[prop] = structuredClone(own[prop]);
+					}
+				}
+			}
+			values[field] = value;
+		}
+		return values;
+	}
+
+	/** Update the given inherited fields of a live instance from its template */
+	private _copyInheritedValues(instance: InstanceRecord, fields: string[]): void {
+		const template = this._templateOf(instance.config);
+		if (!template) {
+			return;
+		}
+		const values = InstanceManager._inheritedValues(instance.config, template.config, fields);
+		this._inheriting += 1;
+		try {
+			instance.config.update(values, true);
+		} finally {
+			this._inheriting -= 1;
+		}
+	}
+
+	/** Unlink a field, or the changed properties of an object field, edited on the instance */
+	private _unlinkEditedField(instance: InstanceRecord, field: string, curr: unknown, prev: unknown): void {
+		const entry = instance.config.get("instance.inherited_fields")[field];
+		if (!(entry instanceof Array)) {
+			this.overrideField(instance, field);
+			return;
+		}
+		const currObj = curr as Record<string, unknown> ?? {};
+		const prevObj = prev as Record<string, unknown> ?? {};
+		const changed = Object.keys(currObj).filter(p => !isDeepStrictEqual(currObj[p], prevObj[p]));
+		const removed = Object.keys(prevObj).filter(p => !Object.hasOwn(currObj, p));
+		const overrides = [...new Set([...entry, ...changed])].filter(p => !removed.includes(p));
+		const inherited = { ...instance.config.get("instance.inherited_fields"), [field]: overrides };
+		instance.config.set("instance.inherited_fields", inherited);
+		if (removed.length) {
+			// Removed properties fall back to the template value
+			this._copyInheritedValues(instance, [field]);
+		}
+	}
+
+	/** Recompute inherited fields after template_id changed, values equal to the template or default are inherited */
+	private _linkMatchingFields(instance: InstanceRecord): void {
+		const template = this._templateOf(instance.config);
+		const inherited: InheritedFields = {};
+		if (template) {
+			for (const name of InstanceManager._inheritableFields()) {
+				const value = instance.config.get(name) as any;
+				const templateValue = template.config.get(name) as any;
+				const defaultValue = InstanceManager._defaultValue(name, instance.config) as any;
+				if (lib.InstanceConfig.fieldDefinitions[name].type === "object") {
+					inherited[name] = Object.keys(value ?? {}).filter(prop => !(
+						isDeepStrictEqual(value[prop], templateValue?.[prop])
+						|| defaultValue && isDeepStrictEqual(value[prop], defaultValue[prop])
+					) || name === "factorio.settings" && prop === "name");
+				} else if (
+					isDeepStrictEqual(value, templateValue)
+					|| defaultValue !== undefined && isDeepStrictEqual(value, defaultValue)
+				) {
+					inherited[name] = true;
+				}
+			}
+		}
+		instance.config.set("instance.inherited_fields", inherited);
+		this._copyInheritedValues(instance, Object.keys(inherited));
+	}
+
+	/** Copy a changed value from a template to the instances inheriting it */
+	private _updateInheritors(template: InstanceRecord, field: string, value: unknown): void {
+		if (!lib.InstanceConfig.isInheritable(field)) {
+			return;
+		}
+		for (const instance of this.inheritorsOf(template.id)) {
+			if (!instance.config.isInherited(field)) {
+				continue;
+			}
+			this._copyInheritedValues(instance, [field]);
+			this._controller.instanceConfigUpdated(instance).catch(err => {
+				logger.error(`Failed to send config of instance ${instance.id} to its host:\n${err.stack}`);
+			});
+		}
+	}
+
+	/* ------------------------------------------------------------------------- */
+	/* Lifecycle                                                                 */
+	/* ------------------------------------------------------------------------- */
+
+	/**
+	 * Create a new instance.
+	 *
+	 * @example
+	 * const config = new lib.InstanceConfig("controller", { "instance.name": "My instance" });
+	 * const instance = await controller.instances.createInstance(config);
+	 *
+	 * @param instanceConfig - Config to base the newly created instance on.
+	 * @param _suppressChanges - When true, side effects are suppressed, caller takes ownership.
+	 * @returns The created instance record.
+	 * @throws {module:lib.ConflictError} if an instance with the same ID already exists.
+	 */
+	async createInstance(
+		instanceConfig: lib.InstanceConfig,
+		_suppressChanges?: boolean,
+	): Promise<InstanceRecord> {
+		const instanceId = instanceConfig.get("instance.id");
+		if (this.records.has(instanceId)) {
+			throw new lib.ConflictError(`Instance with ID ${instanceId} already exists`);
+		}
+
+		const controllerName = this._controller.config.get("controller.name");
+		const serverName = `${controllerName} - ${instanceConfig.get("instance.name")}`;
+		const settings = instanceConfig.get("factorio.settings");
+		if (!instanceConfig.isInherited("factorio.settings")) {
+			instanceConfig.set("factorio.settings", {
+				name: serverName,
+				description: `Clusterio instance for ${controllerName}`,
+				...InstanceManager.DefaultFactorioSettings,
+				...settings,
+			});
+		} else if (instanceConfig.isInherited("factorio.settings", "name")) {
+			// Each instance gets its own server name
+			instanceConfig.setProp("factorio.settings", "name", serverName);
+			const inherited = instanceConfig.get("instance.inherited_fields");
+			instanceConfig.set("instance.inherited_fields", {
+				...inherited, "factorio.settings": [...inherited["factorio.settings"] as string[], "name"],
+			});
+		}
+
+		const instance = new InstanceRecord(instanceConfig, "unassigned");
+		this.addInstanceHooks(instance);
+
+		if (!_suppressChanges) {
+			this.records.set(instance);
+			await this._notifyStatusChanged(instance);
+		}
+
+		return instance;
+	}
+
+	/**
+	 * Change the assigned host of an instance.
+	 *
+	 * Unassigns the instance from the currently assigned host (if connected)
+	 * and assigns it to the provided host.
+	 *
+	 * This is the only supported way of modifying the
+	 * `instance.assigned_host` configuration entry.
+	 *
+	 * Note:
+	 * - This does NOT transfer any files or saves between hosts.
+	 * - If the instance is already assigned to the specified host, no action is taken.
+	 *
+	 * @param instanceId - ID of instance to assign.
+	 * @param hostId - ID of host to assign the instance to. If undefined,
+	 * the instance will be unassigned.
+	 *
+	 * @throws {module:lib.NotFoundError} if the instance does not exist.
+	 * @throws {module:lib.UnavailableError} if the target host is not connected.
+	 */
+	async assignInstance(
+		instanceId: number,
+		hostId: number | null,
+	): Promise<void> {
+		const instance = this.getForRequest(instanceId);
+		const hostConnections = this._controller.wsServer.hostConnections;
+
+		const currentAssignedHost = instance.config.get("instance.assigned_host");
+		if (currentAssignedHost === hostId) {
+			return;
+		}
+		if (hostId !== null && instance.config.get("instance.is_template")) {
+			throw new lib.ValidationError("Templates cannot be assigned to a host");
+		}
+
+		let newHostConnection: HostConnection | undefined;
+		if (hostId !== null) {
+			newHostConnection = hostConnections.get(hostId);
+			if (!newHostConnection) {
+				throw new lib.UnavailableError("Target host is not connected to the controller");
+			}
+		}
+
+		if (currentAssignedHost !== null) {
+			const oldHostConnection = hostConnections.get(currentAssignedHost);
+			if (oldHostConnection && !oldHostConnection.connector.closing) {
+				await oldHostConnection.send(
+					new lib.InstanceUnassignInternalRequest(instanceId),
+				);
+			}
+		}
+
+		this._controller.clearSavesOfInstance(instanceId);
+		instance.config.set("instance.assigned_host", hostId);
+
+		if (newHostConnection) {
+			try {
+				await newHostConnection.send(
+					new lib.InstanceAssignInternalRequest(instanceId, instance.config.toRemote("host")),
+				);
+			} catch (err) {
+				// Leave unassigned so the assign can be retried
+				instance.config.set("instance.assigned_host", null);
+				instance.status = "unassigned";
+				this.records.set(instance);
+				throw err;
+			}
+		} else {
+			instance.status = "unassigned";
+		}
+
+		this.records.set(instance);
+	}
+
+	/**
+	 * Unassign an instance from its current host.
+	 *
+	 * Convenience wrapper around {@link assignInstance} that removes
+	 * the assigned host.
+	 *
+	 * @param instanceId - ID of instance to unassign.
+	 */
+	async unassignInstance(instanceId: number): Promise<void> {
+		return this.assignInstance(instanceId, null);
+	}
+
+	/**
+	 * Delete an instance permanently.
+	 *
+	 * Sends a delete request to the assigned host (if any),
+	 * removes the instance from the datastore,
+	 * clears associated saves and user statistics.
+	 *
+	 * @param instanceId - ID of instance to delete.
+	 *
+	 * @throws {module:lib.NotFoundError} if the instance does not exist.
+	 */
+	async deleteInstance(instanceId: number): Promise<void> {
+		const instance = this.getForRequest(instanceId);
+		const hostId = instance.config.get("instance.assigned_host");
+		const inheritors = this.inheritorsOf(instanceId).length;
+		if (inheritors) {
+			throw new lib.ConflictError(`Instance is the template of ${inheritors} other instance(s)`);
+		}
+
+		if (hostId !== null) {
+			await this._controller.sendTo(
+				{ hostId },
+				new lib.InstanceDeleteInternalRequest(instanceId),
+			);
+		}
+
+		const prevStatus = instance.status;
+		this.records.delete(instance);
+		this._controller.clearSavesOfInstance(instanceId);
+		this._controller.users.clearStatsOfInstance(instanceId);
+
+		await this._notifyStatusChanged(instance, prevStatus);
+	}
+}

packages/controller/src/InstanceRecord.ts

@@ -1,52 +1,22 @@
 import * as lib from "@clusterio/lib";
 import { Static, Type } from "@sinclair/typebox";
 
-
-/**
- * Runtime status of an instance on the controller
- * @alias module:controller/src/InstanceInfo
- */
-export default class InstanceInfo {
+/** Underlying data class for instances on the controller */
+export default class InstanceRecord {
 	constructor(
 		public config: lib.InstanceConfig,
 		public status: lib.InstanceStatus,
 		public gamePort?: number,
 		public factorioVersion?: lib.TargetVersion,
+		public startedAtMs = 0,
 		public updatedAtMs = 0,
 	) {
 		this.config = config;
 		this.status = status;
 	}
 
-	static jsonSchema = Type.Object({
-		"config": lib.InstanceConfig.jsonSchema,
-		"status": lib.InstanceStatus,
-		"gamePort": Type.Optional(Type.Number()),
-		"updatedAtMs": Type.Optional(Type.Number()),
-		"factorioVersion": Type.Optional(lib.TargetVersionSchema),
-	});
-
-	static fromJSON(json: Static<typeof this.jsonSchema>, location: lib.ConfigLocation) {
-		return new this(
-			lib.InstanceConfig.fromJSON(json.config, location),
-			json.status,
-			json.gamePort,
-			json.factorioVersion,
-			json.updatedAtMs,
-		);
-	}
-
-	toInstanceDetails() {
-		return new lib.InstanceDetails(
-			this.config.get("instance.name"),
-			this.id,
-			this.config.get("instance.assigned_host") ?? undefined,
-			this.gamePort,
-			this.status,
-			this.factorioVersion,
-			this.updatedAtMs,
-			this.config.get("instance.exclude_from_start_all"),
-		);
+	get id(): number {
+		return this.config.get("instance.id");
 	}
 
 	get isDeleted() {
@@ -60,8 +30,73 @@ export default class InstanceInfo {
 		this.status = "deleted";
 	}
 
-	/** Shorthand for `instance.config.get("instance.id")` */
-	get id():number {
-		return this.config.get("instance.id");
+	static jsonSchema = Type.Object({
+		"config": lib.InstanceConfig.jsonSchema,
+		"status": lib.InstanceStatus,
+		"gamePort": Type.Optional(Type.Number()),
+		"startedAtMs": Type.Optional(Type.Number()),
+		"updatedAtMs": Type.Optional(Type.Number()),
+		"factorioVersion": Type.Optional(lib.TargetVersionSchema),
+	});
+
+	static fromJSON(json: Static<typeof this.jsonSchema>) {
+		return new this(
+			lib.InstanceConfig.fromJSON(json.config, "controller"),
+			json.status,
+			json.gamePort,
+			json.factorioVersion,
+			json.startedAtMs,
+			json.updatedAtMs,
+		);
+	}
+
+	toJSON(): Static<typeof InstanceRecord.jsonSchema> {
+		const json: any = {
+			config: this.config.toJSON(),
+			status: this.status,
+		};
+
+		if (this.gamePort !== undefined) {
+			json.gamePort = this.gamePort;
+		}
+		if (this.factorioVersion !== undefined) {
+			json.factorioVersion = this.factorioVersion;
+		}
+		if (this.startedAtMs !== 0) {
+			json.startedAtMs = this.startedAtMs;
+		}
+		if (this.updatedAtMs !== 0) {
+			json.updatedAtMs = this.updatedAtMs;
+		}
+
+		return json;
+	}
+
+	toInstanceDetails() {
+		return new lib.InstanceDetails(
+			this.config.get("instance.name"),
+			this.id,
+			this.config.get("instance.assigned_host") ?? undefined,
+			this.gamePort,
+			this.status,
+			this.factorioVersion,
+			this.startedAtMs,
+			this.updatedAtMs,
+			this.config.get("instance.exclude_from_start_all"),
+			this.config.get("instance.is_template"),
+			this.config.get("instance.template_id") ?? undefined,
+			this.config.get("factorio.mod_pack_id") ?? undefined,
+		);
+	}
+
+	static fromInstanceDetails(details: lib.InstanceDetails, config: lib.InstanceConfig) {
+		return new InstanceRecord(
+			config,
+			details.status,
+			details.gamePort,
+			details.factorioVersion,
+			details.startedAtMs,
+			details.updatedAtMs,
+		);
 	}
 }

packages/controller/src/User.ts

@@ -0,0 +1,146 @@
+
+import {
+	IUser, Role, SubscribableDatastore,
+	PermissionError, PermissionName, permissions,
+} from "@clusterio/lib";
+
+import UserRecord from "./UserRecord.js";
+import { Static } from "@sinclair/typebox";
+
+/**
+ * Represents a user as viewed from the controller.
+ *
+ * All methods are safe to use when readonly.
+ * Only use mutable when needing to change multiple values.
+ */
+export default class User extends UserRecord implements IUser {
+	constructor(
+		private _controllerUsers: SubscribableDatastore<UserRecord>,
+		private _controllerRoles: SubscribableDatastore<Role>,
+		...args: ConstructorParameters<typeof UserRecord>
+	) {
+		super(...args);
+	}
+
+	static fromJSON(
+		json: Static<typeof this.jsonSchema>,
+		_controllerUsers: SubscribableDatastore<UserRecord>,
+		_controllerRoles: SubscribableDatastore<Role>,
+	) {
+		return this.fromUserRecord(
+			UserRecord.fromJSON(json),
+			_controllerUsers,
+			_controllerRoles,
+		);
+	}
+
+	static fromUserRecord(
+		userRecord: UserRecord,
+		_controllerUsers: SubscribableDatastore<UserRecord>,
+		_controllerRoles: SubscribableDatastore<Role>,
+	): User {
+		return new this(
+			_controllerUsers,
+			_controllerRoles,
+			userRecord.tokenValidAfter,
+			userRecord.name,
+			userRecord.roleIds,
+			userRecord.instances,
+			userRecord.isAdmin,
+			userRecord.isBanned,
+			userRecord.isWhitelisted,
+			userRecord.banReason,
+			userRecord.updatedAtMs,
+			userRecord.isDeleted,
+			userRecord.instanceStats,
+		);
+	}
+
+	/** Roles this user has */
+	get roles(): ReadonlySet<Readonly<Role>> {
+		return new Set([...this.roleIds].map(
+			id => this._controllerRoles.get(id)
+		).filter(
+			(r): r is Role => Boolean(r)
+		));
+	}
+
+	/** Save the underlying user record */
+	saveRecord() {
+		this._controllerUsers.set(this);
+	}
+
+	/** Set a property on the underlying record, then save it. */
+	set<K extends keyof this>(key: K, value: this[K]) {
+		this[key] = value;
+		this.saveRecord();
+	}
+
+	/**
+	 * Invalidate current tokens for the user
+	 *
+	 * Sets the tokenValidAfter property to the current time, which causes
+	 * all currently issued tokens for the user to become invalid.
+	 */
+	invalidateToken() {
+		this.tokenValidAfter = Math.floor(Date.now() / 1000);
+		this.saveRecord();
+	}
+
+	/** Add a role to this user */
+	addRole(roleId: number) {
+		const role = this._controllerRoles.get(roleId);
+		if (!role) {
+			throw new Error(`role ${roleId} does not exist`);
+		}
+		this.roleIds.add(roleId);
+		this.saveRecord();
+	}
+
+	/** Remove a role from user */
+	removeRole(roleId: number) {
+		if (!this.roleIds.delete(roleId)) {
+			return false;
+		}
+		this.saveRecord();
+		return true;
+	}
+
+	/** Set a user as being online on a specific instance */
+	notifyJoin(instanceId: number) {
+		this.instances.add(instanceId);
+		this.saveRecord();
+	}
+
+	/** Set a user as being offline on a specific instance */
+	notifyLeave(instanceId: number) {
+		this.instances.delete(instanceId);
+		this.saveRecord();
+	}
+
+	/** Clear the stats of a player on a specific instance */
+	clearInstanceStats(instanceId: number) {
+		this.instances.delete(instanceId);
+		this.instanceStats.delete(instanceId);
+		this.recalculatePlayerStats();
+		this.saveRecord();
+	}
+
+	checkPermission(permission: PermissionName) {
+		if (!permissions.has(permission)) {
+			throw new Error(`permission ${permission} does not exist`);
+		}
+
+		for (const roleId of this.roleIds) {
+			const role = this._controllerRoles.get(roleId);
+			if (!role) {
+				continue;
+			}
+			if (role.permissions.has("core.admin") || role.permissions.has(permission)) {
+				return;
+			}
+		}
+
+		throw new PermissionError("Permission denied");
+	}
+}

packages/controller/src/UserManager.ts

@@ -1,67 +1,47 @@
-import fs from "fs-extra";
+import fs from "node:fs/promises";
 import jwt from "jsonwebtoken";
 
 import * as lib from "@clusterio/lib";
 
-import ControllerUser from "./ControllerUser";
+import User from "./User.js";
+import UserRecord from "./UserRecord.js";
 
 /**
- * Manages users and roles
+ * Access layer for users on the controller.
+ *
+ * In performance critical paths the raw records can be accessed directly.
+ * Otherwise this class will wrap data in a view class with a set and save method.
+ *
  * @alias module:controller/src/UserManager
  */
 export default class UserManager {
-	users: Map<ControllerUser["id"], ControllerUser> = new Map();
-	dirty = false;
-
-	/**
-	 * Set of users currently online in the cluster.
-	 */
-	onlineUsers = new Set<ControllerUser>();
-
 	constructor(
-		private _config: lib.ControllerConfig,
-		private _roles: lib.SubscribableDatastore<lib.Role>,
+		public records: lib.SubscribableDatastore<UserRecord>,
+		private _controllerRoles: lib.SubscribableDatastore<lib.Role>,
+		private _controllerConfig: lib.ControllerConfig,
 	) {
 	}
 
-	getByName(name: string) {
-		return this.users.get(name.toLowerCase());
-	}
-
-	async load(filePath: string): Promise<void> {
+	/**
+	 * Prior to 2.0.0-alpha.22 users and roles were stored in a single file.
+	 * This migration separates them so they can be loaded by datastore.
+	 *
+	 * @param usersFilePath The src and dst file path for the users json file
+	 * @param rolesFilePath The dst for the roles json file
+	 */
+	static async attemptMigrateLegacyUsersFile(usersFilePath: string, rolesFilePath: string) {
 		try {
-			let content = JSON.parse(await fs.readFile(filePath, { encoding: "utf8" }));
-			if ("roles" in content) { // Split file format after 2.0.0-alpha.22
-				this._roles.setMany(content.roles.map((serializedRole: any) => lib.Role.fromJSON(serializedRole)));
-				await this._roles.save(); // Force a save to prevent data loss
-				content = content.users;
+			const combinedJson = JSON.parse(await fs.readFile(usersFilePath, { encoding: "utf8" }));
+			if (!("roles" in combinedJson)) {
+				return; // Files are already split, no action required
 			}
-
-			let duplicates = 0;
-			for (const serializedUser of content) {
-				const user = ControllerUser.fromJSON(serializedUser, this._roles);
-				const existingUser = this.users.get(user.id);
-				if (existingUser) {
-					// Required migration to all lowercase ids in alpha 19
-					duplicates += 1;
-					// We assume the user with the lower online time is the duplicate
-					if (user.playerStats.onlineTimeMs <= existingUser.playerStats.onlineTimeMs) {
-						existingUser.merge(user);
-						continue; // Skip users.set
-					}
-					user.merge(existingUser);
-				}
-				this.users.set(user.id, user);
-			}
-
-			if (duplicates) {
-				const backupPath = `${filePath}.${Date.now()}.bak`;
-				lib.logger.warn(
-					`A total of ${duplicates} users were merged, a backup was written to: ${backupPath}`
-				);
-				await lib.safeOutputFile(backupPath, JSON.stringify(content, null, "\t"));
+			if (!("users" in combinedJson)) {
+				throw new Error("Legacy users json does not contain users property");
 			}
 
+			// We intentionally write the roles first because if it fails then the old user file will still contain them
+			await lib.atomicOverwriteFile(rolesFilePath, JSON.stringify(combinedJson.roles));
+			await lib.atomicOverwriteFile(usersFilePath, JSON.stringify(combinedJson.users));
 		} catch (err: any) {
 			if (err.code !== "ENOENT") {
 				throw err;
@@ -69,66 +49,142 @@ export default class UserManager {
 		}
 	}
 
-	async save(filePath: string): Promise<void> {
-		this.dirty = false;
-		await lib.safeOutputFile(filePath,
-			JSON.stringify([...this.users.values()].map(user => user.toJSON(true)), null, "\t")
+	/* ------------------------------------------------------------------------- */
+	/* Basic Accessors                                                           */
+	/* ------------------------------------------------------------------------- */
+
+	has(id: UserRecord["id"]) {
+		return this.records.has(id);
+	}
+
+	getMutable(id: UserRecord["id"]) {
+		const userRecord = this.records.getMutable(id);
+		if (!userRecord) {
+			return undefined;
+		}
+
+		return User.fromUserRecord(
+			userRecord,
+			this.records,
+			this._controllerRoles,
 		);
 	}
 
+	get(id: UserRecord["id"]): Readonly<User> | undefined {
+		return this.getMutable(id);
+	}
+
+	hasName(name: UserRecord["name"]) {
+		return this.has(name.toLowerCase());
+	}
+
+	getByNameMutable(name: UserRecord["name"]) {
+		return this.getMutable(name.toLowerCase());
+	}
+
+	getByName(name: UserRecord["name"]) {
+		return this.get(name.toLowerCase());
+	}
+
+	* valuesMutable(): IterableIterator<User> {
+		const roles = this._controllerRoles;
+		const users = this.records;
+
+		for (const record of users.values()) {
+			yield User.fromUserRecord(record, users, roles);
+		}
+	}
+
+	values(): IterableIterator<Readonly<User>> {
+		return this.valuesMutable();
+	}
+
+	/* ------------------------------------------------------------------------- */
+	/* Lifecycle                                                                 */
+	/* ------------------------------------------------------------------------- */
+
 	/**
 	 * Creates a new user and add it to the user database.
 	 * @param name - Name of the user to create.
 	 * @returns The created user.
 	 */
-	createUser(name: string): ControllerUser {
+	createUser(name: string): User {
 		if (this.getByName(name)) {
 			throw new Error(`User '${name}' already exists`);
 		}
 
 		let roles = new Set<number>();
-		let defaultRoleId = this._config.get("controller.default_role_id");
-		if (defaultRoleId !== null && this._roles.has(defaultRoleId)) {
+		let defaultRoleId = this._controllerConfig.get("controller.default_role_id");
+		if (defaultRoleId !== null && this._controllerRoles.has(defaultRoleId)) {
 			roles.add(defaultRoleId);
 		}
 
-		let user = new ControllerUser(this._roles, 0, name, roles);
-		this.users.set(user.id, user);
-		this.dirty = true;
+		// Reject tokens issued before the user existed, e.g. for a previous user by the same name
+		const tokenValidAfter = Math.floor(Date.now() / 1000);
+		const user = new User(this.records, this._controllerRoles, tokenValidAfter, name, roles);
+		this.records.set(user);
 		return user;
 	}
 
+	/** Get or create a user with a given name. */
+	getOrCreateUser(name: string): User {
+		return this.getByNameMutable(name) ?? this.createUser(name);
+	}
+
+	/**
+	 * Deletes an existing user
+	 *
+	 * @param user - user to delete
+	 */
+	deleteUser(user: UserRecord) {
+		return this.records.delete(user);
+	}
+
+	/* ------------------------------------------------------------------------- */
+	/* Helpers                                                                   */
+	/* ------------------------------------------------------------------------- */
+
 	/**
 	 * Sign access token for the given user
 	 *
 	 * @param user - user to sign token for
 	 * @returns JWT access token for the user.
 	 */
-	signUserToken(user: ControllerUser): string {
-		return jwt.sign(
-			{ aud: "user", user: user.id },
-			Buffer.from(this._config.get("controller.auth_secret"), "base64")
-		);
+	signUserToken(user: UserRecord): string {
+		return jwt.sign({ aud: "user", user: user.id }, this._authSecret);
 	}
 
-	notifyJoin(user: ControllerUser, instance_id: number) {
-		user.instances.add(instance_id);
-		this.onlineUsers.add(user);
-	}
-
-	notifyLeave(user: ControllerUser, instance_id: number) {
-		user.instances.delete(instance_id);
-		if (!user.instances.size) {
-			this.onlineUsers.delete(user);
+	/**
+	 * Check a user token
+	 *
+	 * @param token - User token to check.
+	 * @returns the user the token was issued to.
+	 * @throws if the token is invalid, its user does not exist or it was issued before tokenValidAfter.
+	 */
+	verifyUserToken(token: string): User {
+		const payload = jwt.verify(token, this._authSecret, { audience: "user" });
+		if (typeof payload === "string") {
+			throw new Error("unexpected JsonWebToken type");
 		}
+		const user = this.getByNameMutable(payload.user);
+		if (!user) {
+			throw new Error("invalid user");
+		}
+		if (!payload.iat || payload.iat < user.tokenValidAfter) {
+			throw new Error("invalid token");
+		}
+		return user;
 	}
 
+	private get _authSecret() {
+		// auth secret is never null after startup
+		return Buffer.from(this._controllerConfig.get("controller.auth_secret")!, "base64");
+	}
+
+	/** Clear all player stats for specific instance */
 	clearStatsOfInstance(instanceId: number) {
-		for (const user of this.users.values()) {
-			this.notifyLeave(user, instanceId);
-			user.instanceStats.delete(instanceId);
-			user.recalculatePlayerStats();
+		for (const user of this.values()) {
+			user.clearInstanceStats(instanceId);
 		}
-		this.dirty = true;
 	}
 }

packages/controller/src/UserRecord.ts

@@ -0,0 +1,102 @@
+import { UserDetails } from "@clusterio/lib";
+import { Type, Static } from "@sinclair/typebox";
+
+/** Underlying data class for users on the controller */
+export default class UserRecord extends UserDetails {
+	constructor(
+		/** Unix time in seconds the user token must be issued after to be valid.  */
+		public tokenValidAfter = 0,
+		...args: ConstructorParameters<typeof UserDetails>
+	) {
+		super(...args);
+	}
+
+	static jsonSchema = Type.Object({
+		token_valid_after: Type.Optional(Type.Number()),
+		...UserDetails.jsonSchema.properties,
+	});
+
+	// _a and _b are a ts workaround for allowing User to have extra arguments
+	static fromJSON(json: Static<typeof this.jsonSchema>, _a?: any, _b?: any) {
+		return this.fromUserDetails(
+			UserDetails.fromJSON(json),
+			json.token_valid_after,
+		);
+	}
+
+	toJSON() {
+		const json = super.toJSON() as Static<typeof UserRecord.jsonSchema>;
+
+		if (this.tokenValidAfter > 0) {
+			json.token_valid_after = this.tokenValidAfter;
+		}
+
+		return json;
+	}
+
+	static fromUserDetails(
+		userDetails: UserDetails,
+		tokenValidAfter = 0,
+	) {
+		return new this(
+			tokenValidAfter,
+			userDetails.name,
+			userDetails.roleIds,
+			userDetails.instances,
+			userDetails.isAdmin,
+			userDetails.isBanned,
+			userDetails.isWhitelisted,
+			userDetails.banReason,
+			userDetails.updatedAtMs,
+			userDetails.isDeleted,
+			userDetails.instanceStats,
+		);
+	}
+
+	toUserDetails() {
+		return new UserDetails(
+			this.name,
+			this.roleIds,
+			this.instances,
+			this.isAdmin,
+			this.isBanned,
+			this.isWhitelisted,
+			this.banReason,
+			this.updatedAtMs,
+			this.isDeleted,
+			this.instanceStats,
+		);
+	}
+
+	/**
+	 * Merge another user into this one, must have matching ids, user is not deleted
+	 * @param otherUser - User who's details are merged from
+	*/
+	merge(otherUser: UserDetails) {
+		if (this.id !== otherUser.id) {
+			throw new Error("Cannot merge users with different ids");
+		}
+
+		// Merge properties
+		this.roleIds = new Set([...this.roleIds, ...otherUser.roleIds]);
+		this.instances = new Set([...this.instances, ...otherUser.instances]);
+		this.isAdmin = this.isAdmin && otherUser.isAdmin; // More secure to use && rather ||
+		this.isBanned = this.isBanned || otherUser.isBanned;
+		this.isWhitelisted = this.isWhitelisted || otherUser.isWhitelisted;
+		this.banReason = this.updatedAtMs > otherUser.updatedAtMs ? this.banReason : otherUser.banReason;
+		this.updatedAtMs = Date.now();
+
+		// Merge instance stats
+		const thisInstanceStats = this.instanceStats;
+		for (const [instanceId, instanceStats] of otherUser.instanceStats.entries()) {
+			if (thisInstanceStats.has(instanceId)) {
+				thisInstanceStats.get(instanceId)!.merge(instanceStats);
+			} else {
+				thisInstanceStats.set(instanceId, instanceStats);
+			}
+		}
+
+		// Player stats must be recalculated after modifying instance stats
+		this.recalculatePlayerStats();
+	}
+}

packages/controller/src/WsServer.ts

@@ -1,18 +1,18 @@
 import type { IncomingMessage } from "http";
 import type { Duplex } from "stream";
-import type Controller from "./Controller";
+import type Controller from "./Controller.js";
 
 import jwt from "jsonwebtoken";
 import WebSocket, { WebSocketServer } from "ws";
 
 import * as lib from "@clusterio/lib";
-const { logger } = lib;
+import { logger } from "@clusterio/lib";
 
-import ControlConnection from "./ControlConnection";
-import HostConnection from "./HostConnection";
-import WsServerConnector from "./WsServerConnector";
+import ControlConnection from "./ControlConnection.js";
+import HostConnection from "./HostConnection.js";
+import WsServerConnector from "./WsServerConnector.js";
 
-import { version as packageVersion } from "../package.json";
+import packageConfig from "@clusterio/controller/package.json" with { type: "json" };
 
 const wsMessageCounter = new lib.Counter(
 	"clusterio_controller_websocket_message_total",
@@ -45,12 +45,12 @@ export default class WsServer {
 	sessionAud: string = `session-${Date.now()}`;
 	nextSessionId: number = 1;
 	nextControlId: number = 1;
-	wss: WebSocket.Server;
+	wss: WebSocketServer;
 
 	constructor(controller: Controller) {
 		this.controller = controller;
 
-		this.wss = new WebSocket.Server({
+		this.wss = new WebSocketServer({
 			noServer: true,
 			path: "/api/socket",
 		});
@@ -116,6 +116,13 @@ export default class WsServer {
 	handleConnection(socket: lib.WebSocketClusterio, req: IncomingMessage) {
 		logger.verbose(`WsServer | new connection from ${this.remoteAddr(req)}`);
 
+		// ws emits errors like invalid frames on the socket, and an error with
+		// no listener crashes the controller. The connector adds its own
+		// listener, but only once the handshake has completed.
+		socket.on("error", (err: Error) => {
+			logger.verbose(`WsServer | error on connection from ${this.remoteAddr(req)}: ${err.message}`);
+		});
+
 		// Track statistics
 		wsConnectionsCounter.inc();
 		socket.on("message", (message: WebSocket.RawData) => {
@@ -135,11 +142,11 @@ export default class WsServer {
 
 		// Start connection handshake.
 		let loadedPlugins: {[key:string]: string} = {};
-		for (let [name, plugin] of this.controller.plugins) {
-			loadedPlugins[name] = plugin.info.version;
+		for (const plugin of this.controller.loadedPlugins) {
+			loadedPlugins[plugin.name] = plugin.version;
 		}
 
-		socket.send(JSON.stringify(new lib.MessageHello(new lib.HelloData(packageVersion, loadedPlugins))));
+		socket.send(JSON.stringify(new lib.MessageHello(new lib.HelloData(packageConfig.version, loadedPlugins))));
 		this.attachHandler(socket, req);
 	}
 
@@ -223,13 +230,11 @@ ${err.stack}`
 	createSession(dst: lib.Address): [ WsServerConnector, string ] {
 		let sessionId = this.nextSessionId;
 		this.nextSessionId += 1;
-		let sessionToken = jwt.sign(
-			{ aud: this.sessionAud, sid: sessionId },
-			Buffer.from(this.controller.config.get("controller.auth_secret"), "base64"),
-		);
+		let sessionToken = jwt.sign({ aud: this.sessionAud, sid: sessionId }, this.controller.authSecret);
 		let sessionTimeout = this.controller.config.get("controller.session_timeout");
 		let heartbeatInterval = this.controller.config.get("controller.heartbeat_interval");
-		let connector = new WsServerConnector(dst, sessionId, sessionTimeout, heartbeatInterval);
+		let maxSendBufferSize = this.controller.config.get("controller.max_send_buffer_size") * 1024 * 1024;
+		let connector = new WsServerConnector(dst, sessionId, sessionTimeout, heartbeatInterval, maxSendBufferSize);
 		this.activeConnectors.set(sessionId, connector);
 		connector.on("close", () => {
 			this.activeConnectors.delete(sessionId);
@@ -247,26 +252,9 @@ ${err.stack}`
 		}
 
 		try {
-			let tokenPayload = jwt.verify(
-				data.token,
-				Buffer.from(this.controller.config.get("controller.auth_secret"), "base64"),
-				// migrate: allow pre-rename tokens issued to hosts before alpha-14
-				{ audience: ["host", "slave"] }
-			);
-
-			if (typeof tokenPayload === "string") {
-				throw new Error("unexpected JsonWebToken type");
-			}
-
-			// migrate: allow pre-rename tokens issued to hosts before alpha-14
-			if ((tokenPayload.host !== undefined ? tokenPayload.host : tokenPayload.slave) !== data.id) {
+			if (this.controller.hosts.verifyHostToken(data.token).id !== data.id) {
 				throw new Error("missmatched host id");
 			}
-
-			let host = this.controller.hosts.get(data.id);
-			if (!tokenPayload.iat || tokenPayload.iat < (host?.tokenValidAfter ?? 0)) {
-				throw new Error("invalid token");
-			}
 		} catch (err: any) {
 			logger.verbose(`WsServer | authentication failed for ${this.remoteAddr(req)}`);
 			wsRejectedConnectionsCounter.inc();
@@ -295,13 +283,21 @@ ${err.stack}`
 		logger.info(
 			`WsServer | registered host ${data.id} using version ${data.version}`
 		);
-		if (data.version !== packageVersion) {
+		if (data.version !== packageConfig.version) {
 			logger.warn(
 				`Host ${data.id} connected using version ${data.version} which does not match the ` +
-				`version of the controller is currently running (${packageVersion}). It may not work as expected.`
+				`version of the controller is currently running (${packageConfig.version}). ` +
+				"It may not work as expected."
 			);
 		}
 
+		// The host may have been revoked while waiting for the old connection to close.
+		if (!this.controller.hosts.has(data.id)) {
+			wsRejectedConnectionsCounter.inc();
+			socket.close(lib.ConnectionClosed.Unauthorized, "Authentication failed: host was revoked");
+			return;
+		}
+
 		let [connector, sessionToken] = this.createSession(new lib.Address(lib.Address.host, data.id));
 
 		// Handle close before HostConnection does. This avoids a host
@@ -324,23 +320,7 @@ ${err.stack}`
 	async registerControl(data: lib.RegisterControlData, socket: WebSocket, req: IncomingMessage) {
 		let user;
 		try {
-			let tokenPayload = jwt.verify(
-				data.token,
-				Buffer.from(this.controller.config.get("controller.auth_secret"), "base64"),
-				{ audience: "user" }
-			);
-
-			if (typeof tokenPayload === "string") {
-				throw new Error("unexpected JsonWebToken type");
-			}
-
-			user = this.controller.userManager.getByName(tokenPayload.user);
-			if (!user) {
-				throw new Error("invalid user");
-			}
-			if ((tokenPayload.iat || 0) < user.tokenValidAfter) {
-				throw new Error("invalid token");
-			}
+			user = this.controller.users.verifyUserToken(data.token);
 			user.checkPermission("core.control.connect");
 
 		} catch (err: any) {
@@ -376,12 +356,7 @@ ${err.stack}`
 	resumeSession(data: lib.ResumeData, socket: WebSocket, req: IncomingMessage) {
 		let connector;
 		try {
-			let payload = jwt.verify(
-				data.sessionToken,
-				Buffer.from(this.controller.config.get("controller.auth_secret"), "base64"),
-				{ audience: this.sessionAud }
-			);
-
+			const payload = jwt.verify(data.sessionToken, this.controller.authSecret, { audience: this.sessionAud });
 			if (typeof payload === "string") {
 				throw new Error("unexpected JsonWebToken type");
 			}

packages/controller/src/WsServerConnector.ts

@@ -1,10 +1,10 @@
-import type WebSocket from "ws";
+import { type WebSocket } from "ws";
 
 import events from "events";
 import assert from "assert/strict";
 
 import * as lib from "@clusterio/lib";
-const { logger } = lib;
+import { logger } from "@clusterio/lib";
 
 
 /**
@@ -21,8 +21,10 @@ export default class WsServerConnector extends lib.WebSocketBaseConnector {
 		private _sessionId: number,
 		private _sessionTimeout: number,
 		public _heartbeatInterval: number,
+		maxSendBufferSize = 0,
 	) {
 		super(new lib.Address(lib.Address.controller, 0), dst);
+		this.maxSendBufferSize = maxSendBufferSize;
 
 		// The following states are used in the server connector
 		// closed: Connection is closed
@@ -49,7 +51,7 @@ export default class WsServerConnector extends lib.WebSocketBaseConnector {
 	 * @param account - account data to provide to control connection
 	 */
 	ready(
-		socket: WebSocket.WebSocket,
+		socket: WebSocket,
 		src: lib.Address,
 		sessionToken: string,
 		account: lib.AccountDetails | undefined
@@ -80,7 +82,7 @@ export default class WsServerConnector extends lib.WebSocketBaseConnector {
 	 * @param lastSeq - The last message the client received.
 	 */
 	continue(
-		socket: WebSocket.WebSocket,
+		socket: WebSocket,
 		lastSeq: number
 	) {
 
@@ -106,14 +108,17 @@ export default class WsServerConnector extends lib.WebSocketBaseConnector {
 		this._state = "connected";
 		this._attachSocketHandlers();
 		this._dropSendBufferSeq(lastSeq);
+		logger.verbose(
+			`Connector | resuming session with ${this.dst}, resending ${this._sendBuffer.length} buffered messages`
+		);
 		for (let message of this._sendBuffer) {
-			this._socket.send(JSON.stringify(message));
+			this._socket.send(message.text);
 		}
 		this.emit("resume");
 	}
 
 	_timedOut() {
-		logger.verbose("Connector | Connection timed out");
+		logger.verbose(`Connector | Connection to ${this.dst} timed out`);
 		this._close();
 	}
 
@@ -139,11 +144,6 @@ export default class WsServerConnector extends lib.WebSocketBaseConnector {
 			}
 		});
 
-		this._socket.on("error", (err: any) => {
-			// It's assumed that close is always called by ws
-			logger.verbose("Connector | Error:", err);
-		});
-
 		this._socket.on("open", () => {
 			logger.verbose("Connector | Open");
 		});

packages/controller/src/routes.ts

@@ -1,18 +1,17 @@
-import type { Application, Request, Response } from "express";
-import type Controller from "./Controller";
+import express, { type Application, type Request, type Response } from "express";
+import Controller from "./Controller.js";
+import HostPairingManager, { HostPairingError } from "./HostPairingManager.js";
 
 import busboy from "busboy";
 import crypto from "crypto";
 import events from "events";
-import fs from "fs-extra";
-import JSZip from "jszip";
-import jwt from "jsonwebtoken";
+import fs from "node:fs/promises";
 import path from "path";
 import nodeStream from "stream";
 import util from "util";
 
 import * as lib from "@clusterio/lib";
-const { logger } = lib;
+import { logger } from "@clusterio/lib";
 
 const finished = util.promisify(nodeStream.finished);
 
@@ -21,9 +20,12 @@ declare global {
 	namespace Express {
 		export interface Locals {
 			controller: Controller,
-			mainBundle: string,
-			devPlugins: Map<string, number>,
-			streams: Map<string, ProxyStream>
+			webBundle: { main: string, imports: Record<string, string> },
+			devServer?: import("vite").ViteDevServer,
+			staticRoot: string | null,
+			devPlugins?: Map<string, string>,
+			streams: Map<string, ProxyStream>,
+			pendingMetrics?: Promise<string>,
 		}
 	}
 }
@@ -43,12 +45,10 @@ function mergeSamples(destinationResult: lib.CollectorResultSerialized, sourceRe
 	}
 }
 
-// Prometheus polling endpoint
-async function getMetrics(req: Request, res: Response, next: any) {
-	const controller: Controller = req.app.locals.controller;
-
+// Collect metrics from the controller, its plugins and all connected hosts
+async function gatherMetrics(controller: Controller) {
 	let results: lib.CollectorResult[] = [];
-	let pluginResults = await lib.invokeHook(controller.plugins, "onMetrics");
+	let pluginResults = await controller.hooks.metrics.collect();
 	for (let metricIterator of pluginResults) {
 		for await (let metric of metricIterator) {
 			results.push(metric);
@@ -98,36 +98,63 @@ async function getMetrics(req: Request, res: Response, next: any) {
 		results.push(lib.deserializeResult(result));
 	}
 
-	let text = await lib.exposition(results);
+	return await lib.exposition(results);
+}
+
+// Prometheus polling endpoint
+async function getMetrics(req: Request, res: Response) {
+	try {
+		res.locals.user.checkPermission("core.controller.metrics");
+	} catch (err: any) {
+		res.status(403).json({ request_errors: [err.message] });
+		return;
+	}
+
+	// Concurrent scrapes share one gather so hosts see at most one
+	// metrics request at a time regardless of how many clients poll.
+	const locals = req.app.locals;
+	if (!locals.pendingMetrics) {
+		locals.pendingMetrics = gatherMetrics(locals.controller).finally(() => {
+			locals.pendingMetrics = undefined;
+		});
+	}
+	const text = await locals.pendingMetrics;
 	res.set("Content-Type", lib.expositionContentType);
 	res.send(text);
 }
 
 
+/**
+ * Removes the static/ prefix from bundle paths in manifest.json so they can be
+ * resolved relative to staticRoot.
+ */
+export function stripStaticPrefix(bundlePath: string) {
+	return bundlePath.replace(/^static\//, "");
+}
+
 function getPlugins(req: Request, res: Response) {
 	let plugins: lib.PluginWebApi[] = [];
 	for (let pluginInfo of req.app.locals.controller.pluginInfos) {
 		let name = pluginInfo.name;
-		let loaded = req.app.locals.controller.plugins.has(name);
-		let enabled = loaded && req.app.locals.controller.config.get(`${pluginInfo.name}.load_plugin`);
+		const loaded = req.app.locals.controller.loadedPlugins.has(pluginInfo);
+		const enabled = loaded && req.app.locals.controller.config.get(`${pluginInfo.name}.load_plugin`);
 		// Note: Cast through unknown is needed because load_plugin is
 		// defined at runtime and no other fields in the controller config
 		// currently have the boolean type.
-		let web: { main:any, error:string|undefined } = { main: undefined, error: undefined};
+		let web: { main: any, error: string|undefined } = { main: undefined, error: undefined};
 		let devPlugins = req.app.locals.devPlugins;
 		if (devPlugins && devPlugins.has(name)) {
-			let stats = res.locals.webpack.devMiddleware.stats.stats[devPlugins.get(name)!];
-			web.main = stats.toJson().assetsByChunkName[name];
+			web.main = devPlugins.get(name);
 		} else if (pluginInfo.manifest) {
-			web.main = pluginInfo.manifest[`${pluginInfo.name}.js`];
+			web.main = pluginInfo.manifest.main;
 			if (!web.main) {
-				web.error = `Missing ${pluginInfo.name}.js entry in manifest.json`;
+				web.error = "Incompatible dist/web/manifest.json, the plugin must be rebuilt with Vite";
 			}
-		} else {
+		} else if (lib.pluginNeedsWebBuild(pluginInfo)) {
 			web.error = "Missing dist/web/manifest.json";
 		}
-		if (web.main === "remoteEntry.js") {
-			web.error = "Incompatible old remoteEntry.js entrypoint.";
+		if (web.main) {
+			web.main = stripStaticPrefix(web.main);
 		}
 		plugins.push({ name, version: pluginInfo.version, enabled, loaded, web, npmPackage: pluginInfo.npmPackage });
 	}
@@ -140,30 +167,28 @@ function getClusterName(req: Request, res: Response) {
 	res.json({ name: clusterName });
 }
 
+// Reads the access token from X-Access-Token or Authorization: Bearer
+function getAccessToken(req: Request) {
+	const token = req.header("x-access-token");
+	if (token) {
+		return token;
+	}
+	const authorization = req.header("authorization");
+	if (authorization && /^Bearer /i.test(authorization)) {
+		return authorization.slice("Bearer ".length).trim();
+	}
+	return undefined;
+}
+
 function validateHostToken(req: Request, res: Response, next: any) {
-	let token = req.header("x-access-token");
+	let token = getAccessToken(req);
 	if (!token) {
 		res.sendStatus(401);
 		return;
 	}
 
 	try {
-		const tokenPayload = jwt.verify(
-			token,
-			Buffer.from(req.app.locals.controller.config.get("controller.auth_secret"), "base64"),
-			{ audience: "host" }
-		);
-
-		if (typeof tokenPayload === "string") {
-			throw new Error("unexpected JsonWebToken type");
-		}
-		let host = req.app.locals.controller.hosts.get(tokenPayload.host);
-		if (!host) {
-			throw new Error("invalid host");
-		}
-		if (!tokenPayload.iat || tokenPayload.iat < (host.tokenValidAfter ?? 0)) {
-			throw new Error("invalid token");
-		}
+		req.app.locals.controller.hosts.verifyHostToken(token);
 	} catch (err) {
 		res.sendStatus(401);
 		return;
@@ -173,31 +198,14 @@ function validateHostToken(req: Request, res: Response, next: any) {
 }
 
 function validateUserToken(req: Request, res: Response, next: any) {
-	let token = req.header("x-access-token");
+	let token = getAccessToken(req);
 	if (!token) {
 		res.sendStatus(401);
 		return;
 	}
 
 	try {
-		let tokenPayload = jwt.verify(
-			token,
-			Buffer.from(req.app.locals.controller.config.get("controller.auth_secret"), "base64"),
-			{ audience: "user" }
-		);
-
-		if (typeof tokenPayload === "string") {
-			throw new Error("unexpected JsonWebToken type");
-		}
-		let user = req.app.locals.controller.userManager.getByName(tokenPayload.user);
-		if (!user) {
-			throw new Error("invalid user");
-		}
-		if (!tokenPayload.iat || tokenPayload.iat < user.tokenValidAfter) {
-			throw new Error("invalid token");
-		}
-		res.locals.user = user;
-
+		res.locals.user = req.app.locals.controller.users.verifyUserToken(token);
 	} catch (err) {
 		res.sendStatus(401);
 		return;
@@ -206,6 +214,105 @@ function validateUserToken(req: Request, res: Response, next: any) {
 	next();
 }
 
+// Responds with the status of a pairing error, returns false for other errors.
+function sendHostPairingError(res: Response, err: unknown) {
+	if (!(err instanceof HostPairingError)) {
+		return false;
+	}
+	if (err.retryAfter !== undefined) {
+		res.set("Retry-After", String(err.retryAfter));
+	}
+	res.status(err.status).json({ error: err.message });
+	return true;
+}
+
+// Checks recovery mode and the request id for the pairing endpoints, returns false if responded to.
+function checkHostPairingRequest(req: Request, res: Response, needsRequestId: boolean) {
+	if (req.app.locals.controller.recoveryMode) {
+		res.status(503).json({ error: "Controller is in recovery mode" });
+		return false;
+	}
+	if (needsRequestId && typeof req.body?.requestId !== "string") {
+		res.status(400).json({ error: "requestId is required" });
+		return false;
+	}
+	return true;
+}
+
+// Request from a host for a host to join the cluster.
+function createHostPairing(req: Request, res: Response) {
+	if (!checkHostPairingRequest(req, res, false)) {
+		return;
+	}
+	const controller = req.app.locals.controller;
+	const remoteAddress = controller.wsServer.remoteAddr(req);
+	try {
+		const name = HostPairingManager.validateName(req.body?.name);
+		const version = typeof req.body?.version === "string" ? req.body.version.slice(0, 64) : "";
+
+		// A user allowed to approve hosts can skip the wait by passing their token.
+		const token = getAccessToken(req);
+		if (token !== undefined) {
+			let user;
+			try {
+				user = controller.users.verifyUserToken(token);
+			} catch (err) {
+				res.status(401).json({ error: "Invalid user token" });
+				return;
+			}
+			try {
+				user.checkPermission("core.host.approve");
+			} catch (err) {
+				logger.audit(
+					`User ${user.name} tried to approve host ${name} from ${remoteAddress} without permission`
+				);
+				res.status(403).json({ error: `User ${user.name} is not allowed to approve hosts` });
+				return;
+			}
+			const host = controller.hosts.createHost(name);
+			logger.audit(
+				`User ${user.name} approved host ${host.name} (${host.id}) from ${remoteAddress} with their token`
+			);
+			res.status(200).json({ hostId: host.id, token: controller.hosts.signHostToken(host.id), name: host.name });
+			return;
+		}
+
+		res.status(202).json(controller.hostPairing.create(name, version, remoteAddress));
+	} catch (err) {
+		if (!sendHostPairingError(res, err)) {
+			throw err;
+		}
+	}
+}
+
+// Poll from a host for the result of its request.
+function pollHostPairing(req: Request, res: Response) {
+	if (!checkHostPairingRequest(req, res, true)) {
+		return;
+	}
+	try {
+		const result = req.app.locals.controller.hostPairing.poll(req.body.requestId);
+		if (result) {
+			res.status(200).json(result);
+		} else {
+			res.status(202).json({ status: "pending" });
+		}
+	} catch (err) {
+		if (!sendHostPairingError(res, err)) {
+			throw err;
+		}
+	}
+}
+
+// Cancel from a host that stopped waiting.
+function cancelHostPairing(req: Request, res: Response) {
+	if (!checkHostPairingRequest(req, res, true)) {
+		return;
+	}
+	req.app.locals.controller.hostPairing.cancel(req.body.requestId);
+	res.sendStatus(204);
+}
+
 // Handle an uploaded export package.
 async function uploadExport(req: Request, res: Response) {
 	if (req.get("Content-Type") !== "application/zip") {
@@ -232,50 +339,74 @@ async function uploadExport(req: Request, res: Response) {
 	for await (let chunk of req) {
 		data.push(chunk);
 	}
-	let buffer: Buffer | null = Buffer.concat(data);
-	let zip = await JSZip.loadAsync(buffer);
-	buffer = null;
+	let zip = await lib.ZipArchive.fromBuffer(Buffer.concat(data));
 
 	// This is hardcoded to prevent path expansion attacks
 	let exportFiles = [
 		"export/settings.json",
 		"export/prototypes.json",
-		"export/item-spritesheet.png",
-		"export/item-metadata.json",
 		"export/locale.json",
+		"export/defines.json",
+		"export/spritesheet.png",
+		"export/metadata.json",
 	];
 
 	let assets: any = {};
-	let settingPrototypes = {};
+	let settingPrototypes: lib.ExportSettings = {};
 	for (let filePath of exportFiles) {
 		let file = zip.file(filePath);
 		if (!file) {
 			continue;
 		}
 
+		let content = await zip.readEntry(file);
 		if (filePath === "export/settings.json") {
-			settingPrototypes = JSON.parse(await file.async("text"));
+			settingPrototypes = JSON.parse(content.toString("utf8"));
 		}
 
 		let { name, ext } = path.posix.parse(filePath);
-		let hash = await lib.hashStream(file.nodeStream());
+		let hash = await lib.hashStream(await zip.openStream(file));
 		assets[name] = `${name}.${hash}${ext}`;
-		await lib.safeOutputFile(path.join("static", `${name}.${hash}${ext}`), await file.async("nodebuffer"));
+		await lib.atomicOverwriteFile(path.join("static", `${name}.${hash}${ext}`), content);
 	}
 
-	modPack.exportManifest = new lib.ExportManifest(assets);
+	modPack.exportManifest = new lib.ExportManifest(assets, new Date().toISOString());
 	modPack.fillDefaultSettings(settingPrototypes, logger);
 	res.app.locals.controller.modPacks.set(modPack);
 
 	res.sendStatus(200);
 }
 
+// Reached when no static file matched, drops exports whose files were removed
+export function missingExportAsset(req: Request, res: Response, next: any) {
+	const file = req.path.slice(1);
+	if (!["GET", "HEAD"].includes(req.method) || !file) {
+		next();
+		return;
+	}
+	const modPacks = res.app.locals.controller.modPacks;
+	const affected = [...modPacks.valuesMutable()].filter(
+		modPack => modPack.exportManifest && Object.values(modPack.exportManifest.assets).includes(file)
+	);
+	if (!affected.length) {
+		next();
+		return;
+	}
+	for (const modPack of affected) {
+		Controller.dropExport(modPack, `${file} was removed from disk`);
+	}
+	modPacks.setMany(affected);
+	res.status(404).type("text/plain").send(
+		`Export data file ${file} is missing, run export-data on an instance to regenerate it`
+	);
+}
+
 type ProxyStreamEvents = {
 	"error": [ err: any ],
 	"close": [],
 	"timeout": [],
 	"source": [],
-}
+};
 
 export interface ProxyStream {
 	id: string;
@@ -314,7 +445,7 @@ export async function createProxyStream(app: Application): Promise<ProxyStream>
 	return stream;
 }
 
-async function putStream(req: Request, res: Response) {
+async function putStream(req: Request<{ id: string }>, res: Response) {
 	const stream = req.app.locals.streams.get(req.params.id);
 	if (!stream || stream.source) {
 		res.sendStatus(404);
@@ -353,7 +484,7 @@ function startStream(res: Response, stream: ProxyStream) {
 	clearTimeout(stream.timeout);
 }
 
-async function getStream(req: Request, res: Response) {
+async function getStream(req: Request<{ id: string }>, res: Response) {
 	const stream = req.app.locals.streams.get(req.params.id);
 	if (!stream || stream.flowing) {
 		res.sendStatus(404);
@@ -515,7 +646,7 @@ function checkModName(name: string) {
 	try {
 		lib.checkFilename(name);
 	} catch (err: any) {
-		throw new lib.RequestError(`Mod name ${err.message}`);
+		throw new lib.ValidationError(`Mod name ${err.message}`);
 	}
 }
 
@@ -552,30 +683,16 @@ async function uploadMod(req: Request, res: Response) {
 		}
 
 		const modsDirectory = req.app.locals.controller.config.get("controller.mods_directory");
-		let tempFilename = filename.replace(/(\.zip)?$/, ".tmp.zip");
+		const filePath = path.join(modsDirectory, filename);
+		const [tempFilePath, writeStream] = await lib.createTempWriteStream(filePath);
 
-		let writeStream;
 		try {
-
-			while (true) {
-				try {
-					writeStream = fs.createWriteStream(path.join(modsDirectory, tempFilename), { flags: "wx" });
-					await events.once(writeStream, "open");
-					break;
-				} catch (err: any) {
-					if (err.code === "EEXIST") {
-						tempFilename = await lib.findUnusedName(modsDirectory, tempFilename, ".tmp.zip");
-					} else {
-						throw err;
-					}
-				}
-			}
 			stream.pipe(writeStream);
 			await finished(writeStream);
 
-			const modInfo = await lib.ModInfo.fromModFile(path.join(modsDirectory, tempFilename));
+			const modInfo = await lib.ModInfo.fromModFile(tempFilePath);
 			checkModName(modInfo.filename);
-			await fs.rename(path.join(modsDirectory, tempFilename), path.join(modsDirectory, modInfo.filename));
+			await fs.rename(tempFilePath, path.join(modsDirectory, modInfo.filename));
 			req.app.locals.controller.modStore.addMod(modInfo);
 			mods.push(modInfo.toJSON());
 
@@ -585,15 +702,13 @@ async function uploadMod(req: Request, res: Response) {
 			stream.resume();
 
 			// Attempt to clean up.
-			if (writeStream) {
-				writeStream.destroy();
-			}
+			writeStream.destroy();
 
 			try {
-				await fs.unlink(path.join(modsDirectory, tempFilename));
+				await fs.unlink(tempFilePath);
 			} catch (unlinkErr: any) {
 				if (unlinkErr.code !== "ENOENT") {
-					logger.error(`Error removing ${tempFilename}: ${unlinkErr.message}`);
+					logger.error(`Error removing ${tempFilePath}: ${unlinkErr.message}`);
 				}
 			}
 		}
@@ -666,15 +781,34 @@ async function uploadMod(req: Request, res: Response) {
 
 
 export function addRouteHandlers(app: Application) {
-	app.get("/metrics", (req:Request, res:Response, next:any) => getMetrics(req, res, next).catch(next));
+	app.get("/metrics",
+		validateUserToken,
+		(req:Request, res:Response, next:any) => getMetrics(req, res).catch(next)
+	);
 	app.get("/api/plugins", getPlugins);
 	app.get("/api/cluster-name", getClusterName);
+	// Set before parsing so errors from the body parser and token check are not cached either.
+	const noStore = (req: Request, res: Response, next: any) => {
+		res.set("Cache-Control", "no-store");
+		next();
+	};
+	const pairingJson = express.json({ limit: "4kb" });
+	app.post("/api/host-pairing", noStore, pairingJson, createHostPairing);
+	app.post("/api/host-pairing/poll", noStore, pairingJson, pollHostPairing);
+	app.post("/api/host-pairing/cancel", noStore, pairingJson, cancelHostPairing);
+	app.get("/api/host-pairing/check", noStore, validateHostToken, (req: Request, res: Response) => {
+		res.json({ valid: true });
+	});
 	app.put("/api/upload-export",
 		validateHostToken,
 		(req:Request, res:Response, next:any) => uploadExport(req, res).catch(next)
 	);
-	app.put("/api/stream/:id", (req:Request, res:Response, next:any) => putStream(req, res).catch(next));
-	app.get("/api/stream/:id", (req:Request, res:Response, next:any) => getStream(req, res).catch(next));
+	app.put("/api/stream/:id",
+		(req:Request<{ id: string }>, res:Response, next:any) => putStream(req, res).catch(next)
+	);
+	app.get("/api/stream/:id",
+		(req:Request<{ id: string }>, res:Response, next:any) => getStream(req, res).catch(next)
+	);
 	app.post("/api/upload-save",
 		validateUserToken,
 		(req:Request, res:Response, next:any) => uploadSave(req, res).catch(next)
@@ -695,6 +829,7 @@ export const webRoutes = [
 	"/instances/:id/view",
 	"/mods",
 	"/mods/mod-packs/:id/view",
+	"/mods/mod-packs/:id/icon-reference",
 	"/users",
 	"/users/:id/view",
 	"/roles",

packages/controller/src/set_lazy_schema_compilation.ts

@@ -0,0 +1,3 @@
+// This needs to be a separate file due to ECMAScript Modules evaluating code in
+// imported modules before any code in the file that imports it.
+(global as any).lazySchemaCompilation = true;

packages/controller/typedoc.json

@@ -1,4 +0,0 @@
-{
-	"entryPoints": ["index.ts"],
-	"includeVersion": true
-}

packages/controller/vite.config.js

@@ -0,0 +1,6 @@
+import { defineConfig } from "vite";
+import { clusterioApp } from "@clusterio/web_ui/vite.mjs";
+
+export default defineConfig({
+	plugins: [clusterioApp({ entry: "web/index.tsx" })],
+});

packages/controller/web/index.html

@@ -5,6 +5,7 @@
 		<meta name="viewport" content="width=device-width, initial-scale=1" />
 		<meta name="theme-color" content="#2a2a2a" />
 		<title>__CLUSTER_NAME__</title>
+		<script type="importmap">__IMPORT_MAP__</script>
 		<style>
 			html {
 				color: #fff;
@@ -26,10 +27,9 @@
 		<div id="root">
 			<div id="bootstrap-msg">Loading web interface...</div>
 		</div>
-		<script id="script-bundle" src="__STATIC_ROOT____MAIN_BUNDLE__" defer></script>
 		<script>
 			webRoot = new URL("__WEB_ROOT__", document.location).pathname;
-			staticRoot = new URL("__STATIC_ROOT__", document.location).pathname;
+			staticRoot = new URL("__STATIC_ROOT__", document.location).href;
 			function scriptError(err) {
 				console.error(err);
 				let bootstrapMsg = document.getElementById("bootstrap-msg");
@@ -41,9 +41,9 @@
 					bootstrapMsg.textContent = `${errorMsg}\nSee web console for details.`;
 				}
 			}
-			const bundleScript = document.getElementById("script-bundle");
-			bundleScript.addEventListener("error", () => scriptError("Main bundle failed to load."));
 			window.addEventListener("error", event => scriptError(event.error));
 		</script>
+		<script id="script-bundle" type="module" src="__STATIC_ROOT____MAIN_BUNDLE__"
+			onerror="scriptError('Main bundle failed to load.')"></script>
 	</body>
 </html>

packages/controller/web/index.tsx

@@ -1,3 +1,4 @@
+// eslint-disable-next-line no-implicit-globals
 declare function scriptError(err: any): void;
 import("@clusterio/web_ui")
 	.then(webUi => webUi.bootstrap())

packages/controller/webpack.config.js

@@ -1,31 +0,0 @@
-"use strict";
-const path = require("path");
-const webpack = require("webpack");
-const { merge } = require("webpack-merge");
-
-const common = require("@clusterio/web_ui/webpack.common");
-
-module.exports = (env = {}, argv = {}) => merge(common(env, argv), {
-	context: __dirname,
-	entry: "./web/index.tsx",
-	devServer: {
-		contentBase: "./dist/web",
-	},
-	output: {
-		path: path.resolve(__dirname, "dist", "web"),
-	},
-	plugins: [
-		new webpack.container.ModuleFederationPlugin({
-			name: "controller",
-			shared: {
-				"@clusterio/lib": { singleton: true },
-				"@clusterio/web_ui": { singleton: true },
-				"antd": { singleton: true },
-				"react": { singleton: true },
-				"react-dom": { singleton: true },
-				"react-router": { singleton: true },
-				"react-router-dom": { singleton: true },
-			},
-		}),
-	],
-});

packages/create/README.md

@@ -2,4 +2,115 @@
 
 Installer for Clusterio.
 
-See [the Clusterio README.md](https://github.com/clusterio/clusterio#readme) the for installation guide.
+Install the latest [Node.js LTS release](https://nodejs.org/en/download) before running the installer.
+See [the Clusterio installation guide](https://github.com/clusterio/clusterio#installation) for platform-specific instructions.
+
+Run the installer in a new empty directory:
+
+    npm init "@clusterio"
+
+It asks which components to install and how to set them up.
+Every question can be answered with an option instead, pass options to the installer after `--`:
+
+    npm init "@clusterio" -- --mode host --host-name my-host --controller-url https://example.com/
+
+The installer runs without prompts when all the questions for the mode are answered with options.
+
+
+## Modes
+
+- `standalone`: controller and host on this computer. The host is approved like any other host the first time it starts.
+- `controller`: controller only.
+- `host`: host only, joins the cluster of an existing controller, see [Setting up a host](#setting-up-a-host).
+- `ctl`: the clusterioctl command line interface only.
+- `plugins`: plugins only, for adding plugins to an existing installation.
+- `plugin-template`: files for writing a new plugin.
+
+
+## Options
+
+| Option | Modes | Description |
+| --- | --- | --- |
+| `--mode <mode>` | all | Operating mode to install. |
+| `--admin <name>` | controller | Name of the admin account to create. |
+| `--http-port <port>` | controller | Port the controller web interface listens on, defaults to 8080. |
+| `--host-name <name>` | host | Name to request for the host, defaults to the name of the computer. |
+| `--controller-url <url>` | host, ctl | URL of the controller, the same as for its web interface. |
+| `--controller-token <token>` | ctl | Authentication token saved for clusterioctl. |
+| `--public-address <address>` | host | DNS name or IP address players connect to this computer with. |
+| `--factorio-dir <path>` | host | Path to the Factorio installation. |
+| `--self-signed-cert <path>` | host | Certificate to trust for a controller using a self-signed certificate. It is added to the run scripts. |
+| `--remote-npm`, `--no-remote-npm` | controller, host | Allow or deny remote updates, plugin updates and plugin installs from the web interface. |
+| `--plugins <package...>` | all | Plugins to install, pass `--plugins` without packages to install none. |
+| `--plugin-template <template...>`, `--plugin-name <name>` | plugin-template | Templates to use and name of the new plugin. |
+| `--log-level <level>` | all | Log level to print, defaults to info. |
+| `--allow-install-as-root` | all | Linux only, allow installing as root (not recommended). |
+| `--migrate-rename` | | Migrate an installation from before the slave/master rename. |
+
+Options for the `controller` and `host` modes also work in the `standalone` mode, except for `--controller-url` as the host connects to the controller on the same computer.
+`--host-name` defaults to `local` in the `standalone` mode.
+
+
+## Setting up a host
+
+A new host has to be approved before it can join the cluster:
+
+1.  Run the installer with the host mode on the computer for the host.
+    It asks for a name for the host, the controller URL, the public address, the Factorio installation, whether to allow remote updates and which plugins to install.
+
+2.  Start the host with `run-host.cmd`, `run-host.sh` or the systemd service in the `systemd` folder.
+    The first time it starts it prints a code and waits for the host to be approved:
+
+        Waiting for approval of "my-host" with code ABC-DEF, open this link to approve it:
+        https://example.com/hosts?approve=ABC-DEF
+        Or run: npx clusterioctl host approve ABC-DEF
+
+3.  Open the link to approve the request in the web interface, where its name can be changed first.
+    It can also be approved under Add host on the Hosts page, or with `npx clusterioctl host approve ABC-DEF`.
+    Only approve a request if its code matches the one shown by the host.
+    Approving requires the `core.host.approve` permission.
+
+4.  The host saves `host.id`, `host.name` and `host.controller_token` to `config-host.json` and starts up.
+    Later starts connect to the cluster straight away.
+
+The host keeps waiting until the request is approved, also if the controller is restarted or can't be reached for a while.
+Press Ctrl+C to stop waiting.
+If the request is rejected the host exits with code 8, which the run scripts do not restart on.
+
+Start the host with `npx clusteriohost run --user-token <token>` and the token of a user that has the `core.host.approve` permission to approve the host without waiting.
+The token is only used for approving the host and is not saved.
+
+If the controller uses a self-signed certificate pass it with `--self-signed-cert <path>`, see [setting up TLS](https://github.com/clusterio/clusterio/blob/master/docs/setting-up-tls.md#creating-and-using-a-self-signed-certificate).
+The installer adds it to the run scripts.
+
+When a host is revoked in the web interface or with `npx clusterioctl host revoke <host>` its token stops working and a running host shuts down.
+Starting it again requests to join the cluster again, and the host gets a new id once approved.
+
+To move a host to another controller, change `host.controller_url` with `npx clusteriohost config set host.controller_url <url>`.
+The new controller does not accept the token of the host, so the host requests to join it the next time it starts.
+
+
+## Docker
+
+To run a host in a container install it when building the image with all answers given as options.
+The host requests to join the cluster the first time the container starts.
+
+```dockerfile
+FROM node:22
+# Install the Factorio headless server to /opt/factorio here
+RUN mkdir /clusterio && chown node:node /clusterio
+USER node
+WORKDIR /clusterio
+RUN npm init "@clusterio" -- --mode host --host-name my-host --controller-url https://example.com/ \
+	--public-address factorio.example.com --factorio-dir /opt/factorio --no-remote-npm --plugins
+VOLUME /clusterio
+CMD exec ./node_modules/.bin/clusteriohost run ${USER_TOKEN:+--user-token "$USER_TOKEN"}
+```
+
+    docker run -d --name my-host -v my-host:/clusterio -p 34100-34199:34100-34199/udp my-host-image
+    docker logs my-host
+
+- The volume holds `config-host.json`, without it every new container requests to join as a new host.
+  Docker copies the installation from the image into a new empty volume, later image updates do not change the installation in an existing volume.
+- The code to approve is printed to the container log, or set `USER_TOKEN` to approve the host without waiting.
+- Stop the container after revoking its host, otherwise a restart requests to join again.

packages/create/create.js

@@ -1,46 +1,42 @@
 #!/usr/bin/env node
 
-"use strict";
-const child_process = require("child_process");
-const fs = require("fs-extra");
-const inquirer = require("inquirer");
-const os = require("os");
-const path = require("path");
-const stream = require("stream");
-const util = require("util");
-const yargs = require("yargs");
+import checkbox from "@inquirer/checkbox";
+import confirm from "@inquirer/confirm";
+import input from "@inquirer/input";
+import select from "@inquirer/select";
+import child_process from "node:child_process";
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import readline from "node:readline";
+import stream from "node:stream";
+import util from "node:util";
+import yargs from "yargs";
 
-const { levels, logger, setLogLevel } = require("./logging");
-const { copyPluginTemplates } = require("./template");
+import { levels, logger, setLogLevel } from "./logging.js";
+import { copyPluginTemplates } from "./template.js";
 let dev = false;
 const scriptExt = process.platform === "win32" ? ".cmd" : "";
-const finished = util.promisify(stream.finished);
-const { escapeArg } = require("./escape_arg");
+import { escapeArg } from "./escape_arg.js";
 
 // I hate this, there is a bug with rl.close on windows that was meant to have been fixed in Node14.4
-// See nodejs/node#21771 and nodejs/node#30701 for the apparent fix that was applied
-// One option is to not call rl.close: SBoudrias/Inquirer.js#767
-// But this comes with its own issues: SBoudrias/Inquirer.js#899
+// See nodejs/node#21771, nodejs/node#30701 and nodejs/node#31762
 // The solution below was adapted from aws-amplify/amplify-cli#12347
 if (process.platform === "win32") {
-	const _inquirer_close = inquirer.ui.Prompt.prototype.close;
-	inquirer.ui.Prompt.prototype.close = function() {
-		this.rl.terminal = false;
-		_inquirer_close.call(this);
+	const close = readline.Interface.prototype.close;
+	readline.Interface.prototype.close = function() {
+		this.terminal = false;
+		close.call(this);
 	};
 }
 
 const availablePlugins = [
 	{ name: "Global Chat", value: "@clusterio/plugin-global_chat" },
-	{ name: "Inventory Sync", value: "@clusterio/plugin-inventory_sync" },
 	{ name: "Player Auth", value: "@clusterio/plugin-player_auth" },
+	{ name: "Player Sync", value: "@clusterio/plugin-player_sync" },
 	{ name: "Research Sync", value: "@clusterio/plugin-research_sync" },
 	{ name: "Statistics Exporter", value: "@clusterio/plugin-statistics_exporter" },
 	{ name: "Subspace Storage", value: "@clusterio/plugin-subspace_storage" },
-
-	// Comunity plugins
-	{ name: "Discord Bridge", value: "@hornwitser/discord_bridge" },
-	{ name: "Server Select", value: "@hornwitser/server_select" },
 ];
 
 const factorioLocations = {
@@ -97,21 +93,33 @@ class LineSplitter extends stream.Transform {
 
 class InstallError extends Error { }
 
+async function pathExists(filePath) {
+	try {
+		await fs.access(filePath);
+	} catch (err) {
+		if (err.code === "ENOENT" || err.code === "ENOTDIR") {
+			return false;
+		}
+	}
+	return true;
+}
 
-async function safeOutputFile(file, data, options={}) {
+async function atomicOverwriteFile(file, data, options={}) {
 	let { dir, name, ext } = path.parse(file);
 	let temporary = path.join(dir, `${name}.tmp${ext}`);
-	await fs.outputFile(temporary, data, options);
+	if (dir) {
+		await fs.mkdir(dir, { recursive: true });
+	}
+	await fs.writeFile(temporary, data, { ...options, flush: true });
 	await fs.rename(temporary, file);
 }
 
 async function execFile(cmd, args) {
-	const escaped = args.map(escapeArg);
-	logger.verbose(`executing ${cmd} ${escaped.join(" ")}`);
+	const command = [cmd, ...args.map(escapeArg)].join(" ");
+	logger.verbose(`executing ${command}`);
 	return new Promise((resolve, reject) => {
 		let child = child_process.execFile(
-			cmd,
-			escaped,
+			command,
 			{
 				shell: true,
 
@@ -136,40 +144,67 @@ async function execFile(cmd, args) {
 
 async function execController(args) {
 	if (dev) {
-		return await execFile("node", [path.join(__dirname, "..", "controller"), ...args]);
+		return await execFile("node", [path.join(import.meta.dirname, "..", "controller"), ...args]);
 	}
 	return await execFile(path.join("node_modules", ".bin", `clusteriocontroller${scriptExt}`), args);
 }
 
 async function execHost(args) {
 	if (dev) {
-		return await execFile("node", [path.join(__dirname, "..", "host"), ...args]);
+		return await execFile("node", [path.join(import.meta.dirname, "..", "host"), ...args]);
 	}
 	return await execFile(path.join("node_modules", ".bin", `clusteriohost${scriptExt}`), args);
 }
 
 async function execCtl(args) {
 	if (dev) {
-		return await execFile("node", [path.join(__dirname, "..", "ctl"), ...args]);
+		return await execFile("node", [path.join(import.meta.dirname, "..", "ctl"), ...args]);
 	}
 	return await execFile(path.join("node_modules", ".bin", `clusterioctl${scriptExt}`), args);
 }
 
-function validateHostToken(token) {
-	let parts = token.split(".");
-	if (parts.length !== 3) {
-		throw new InstallError("Invalid token");
-	}
+// Same characters as the controller refuses in host names.
+const hostNameControlCharacters = /[\p{Cc}\u202a-\u202e\u2066-\u2069]/u;
 
-	let parsed;
+function validateHostName(value) {
+	if (!value || !value.trim()) {
+		return "Host name may not be empty";
+	}
+	if (value.trim().length > 100) {
+		return "Host name may be at most 100 characters";
+	}
+	if (hostNameControlCharacters.test(value)) {
+		return "Host name may not contain control characters";
+	}
+	return true;
+}
+
+function validateControllerUrl(value) {
+	let url;
 	try {
-		parsed = JSON.parse(Buffer.from(parts[1], "base64"));
+		url = new URL(value);
 	} catch (err) {
-		throw new InstallError("Invalid token");
+		return "Controller URL must be a URL like https://example.com/";
 	}
+	if (!["http:", "https:"].includes(url.protocol)) {
+		return "Controller URL must start with http:// or https://";
+	}
+	return true;
+}
 
-	if (parsed.aud !== "host" || !Number.isInteger(parsed.host)) {
-		throw new InstallError("Invalid token");
+// The host requires the controller URL to end with a slash.
+function normaliseControllerUrl(value) {
+	const url = new URL(value);
+	if (!url.pathname.endsWith("/")) {
+		url.pathname += "/";
+	}
+	return url.href;
+}
+
+// Remote updates, plugin updates and plugin installs are allowed or denied together.
+async function setRemoteUpdates(exec, component, allow) {
+	for (let field of ["allow_remote_updates", "allow_plugin_updates", "allow_plugin_install"]) {
+		await exec(["config", "set", `${component}.${field}`, allow]);
 	}
 }
 
@@ -221,10 +256,10 @@ async function migrateRename(args) {
 	}
 
 	async function migrateConfig(source, destination) {
-		if (await fs.pathExists(source) && !await fs.pathExists(destination)) {
-			await safeOutputFile(destination, JSON.stringify(
+		if (await pathExists(source) && !await pathExists(destination)) {
+			await atomicOverwriteFile(destination, JSON.stringify(
 				renameConfig(JSON.parse(await fs.readFile(source))), null, "\t"
-			));
+			), { mode: 0o600 });
 			logger.info(`Migrated ${source} to ${destination}`);
 		}
 	}
@@ -233,20 +268,20 @@ async function migrateRename(args) {
 	await migrateConfig("config-slave.json", "config-host.json");
 
 	let instancesFile = path.join("database", "instances.json");
-	if (await fs.pathExists(instancesFile)) {
-		await safeOutputFile(instancesFile, JSON.stringify(
+	if (await pathExists(instancesFile)) {
+		await atomicOverwriteFile(instancesFile, JSON.stringify(
 			JSON.parse(await fs.readFile(instancesFile)).map(renameConfig), null, "\t"
 		));
 		logger.info(`Migrated ${instancesFile}`);
 	}
 
 	let usersFile = path.join("database", "users.json");
-	if (await fs.pathExists(usersFile)) {
+	if (await pathExists(usersFile)) {
 		let users = JSON.parse(await fs.readFile(usersFile));
 		for (let role of users["roles"]) {
 			role["permissions"] = role["permissions"].map(rename);
 		}
-		await safeOutputFile(usersFile, JSON.stringify(users, null, "\t"));
+		await atomicOverwriteFile(usersFile, JSON.stringify(users, null, "\t"));
 		logger.info(`Migrated ${usersFile}`);
 	}
 
@@ -258,7 +293,7 @@ async function migrateRename(args) {
 
 	async function migrateLog(inputFile, outputFile) {
 		let lineStream = new LineSplitter({ readableObjectMode: true });
-		let fileStream = fs.createReadStream(inputFile);
+		let fileStream = (await fs.open(inputFile)).createReadStream();
 		fileStream.pipe(lineStream);
 		let lines = [];
 
@@ -274,11 +309,11 @@ async function migrateRename(args) {
 				lines.push(inputLine);
 			}
 		}
-		safeOutputFile(outputFile, Buffer.concat(lines));
+		atomicOverwriteFile(outputFile, Buffer.concat(lines));
 	}
 
 	async function migrateLogsDir(inputLogs, outputLogs) {
-		if (await fs.pathExists(inputLogs)) {
+		if (await pathExists(inputLogs)) {
 			logger.info(`Migrating ${inputLogs} to ${outputLogs}`);
 			for (let logFile of await fs.readdir(inputLogs)) {
 				if (!logFile.endsWith(".log")) {
@@ -286,7 +321,7 @@ async function migrateRename(args) {
 				}
 				let inputFile = path.join(inputLogs, logFile);
 				let outputFile = path.join(outputLogs, rename(logFile));
-				if (!await fs.pathExists(outputFile)) {
+				if (!await pathExists(outputFile)) {
 					await migrateLog(inputFile, outputFile);
 					logger.verbose(`Migrated ${inputFile} to ${outputFile}`);
 				}
@@ -297,16 +332,16 @@ async function migrateRename(args) {
 	await migrateLogsDir(path.join("logs", "master"), path.join("logs", "controller"));
 	await migrateLogsDir(path.join("logs", "slave"), path.join("logs", "host"));
 	if (
-		await fs.pathExists(path.join("logs", "cluster"))
-		&& !await fs.pathExists(path.join("logs", "cluster-prerename"))
+		await pathExists(path.join("logs", "cluster"))
+		&& !await pathExists(path.join("logs", "cluster-prerename"))
 	) {
 		await fs.rename(path.join("logs", "cluster"), path.join("logs", "cluster-prerename"));
 		await migrateLogsDir(path.join("logs", "cluster-prerename"), path.join("logs", "cluster"));
 	}
 
 	if (
-		await fs.pathExists("sharedMods")
-		&& !await fs.pathExists("mods")
+		await pathExists("sharedMods")
+		&& !await pathExists("mods")
 	) {
 		logger.info("Moving sharedMods/ to mods/");
 		await fs.rename("sharedMods", "mods");
@@ -328,14 +363,14 @@ async function migrateRename(args) {
 		await execFile(`npm${scriptExt}`, ["update"]);
 	}
 
-	const hasRunMaster = await fs.pathExists("run-master.sh") || await fs.pathExists("run-master.cmd");
-	const hasRunSlave = await fs.pathExists("run-slave.sh") || await fs.pathExists("run-slave.cmd");
+	const hasRunMaster = await pathExists("run-master.sh") || await pathExists("run-master.cmd");
+	const hasRunSlave = await pathExists("run-slave.sh") || await pathExists("run-slave.cmd");
 	if (hasRunMaster || hasRunSlave) {
 		logger.info("Writing run scripts");
 		let mode = "standalone";
 		if (!hasRunSlave) { mode = "controller"; }
 		if (!hasRunMaster) { mode = "host"; }
-		await writeScripts(mode);
+		await writeScripts(mode, "");
 	}
 
 	logger.info(
@@ -354,7 +389,7 @@ async function migrateRename(args) {
 
 async function installClusterio(mode, plugins) {
 	try {
-		await fs.outputFile("package.json", JSON.stringify({
+		await fs.writeFile("package.json", JSON.stringify({
 			name: "clusterio-install",
 			private: true,
 		}, null, 2), { flag: "wx" });
@@ -382,31 +417,7 @@ async function installClusterio(mode, plugins) {
 		throw new InstallError(`Failed to install: ${err.message}`);
 	}
 
-	if (plugins.length) {
-		logger.info("Setting up plugins");
-		let pluginList;
-		try {
-			pluginList = new Map(JSON.parse(await fs.readFile("plugin-list.json")));
-		} catch (err) {
-			if (err.code === "ENOENT") {
-				pluginList = new Map();
-			} else {
-				throw new InstallError(`Error loading plugin-list.json: ${err.message}`);
-			}
-		}
-		for (let plugin of plugins) {
-			if (!pluginList.has(plugin)) {
-
-				let pluginInfo = require(require.resolve(plugin, { paths: [process.cwd()] })).plugin;
-				pluginList.set(pluginInfo.name, plugin);
-			}
-		}
-		try {
-			await safeOutputFile("plugin-list.json", JSON.stringify([...pluginList], null, "\t"));
-		} catch (err) {
-			throw new InstallError(`Error writing plugin-list.json: ${err.message}`);
-		}
-	}
+	// Controller, host and ctl discover installed plugins when loading their configuration.
 }
 
 async function groupIdToName(gid) {
@@ -420,10 +431,10 @@ async function groupIdToName(gid) {
 	}
 }
 
-async function writeScripts(mode) {
+async function writeScripts(mode, selfSignedCert) {
 	if (["standalone", "controller"].includes(mode)) {
 		if (process.platform === "win32") {
-			await safeOutputFile(
+			await atomicOverwriteFile(
 				"run-controller.cmd",
 				`\
 @echo off
@@ -436,7 +447,7 @@ goto restart
 `
 			);
 		} else {
-			await safeOutputFile(
+			await atomicOverwriteFile(
 				"run-controller.sh",
 				`\
 #!/bin/bash
@@ -448,7 +459,7 @@ done
 `,
 				{ mode: 0o755 },
 			);
-			await safeOutputFile(
+			await atomicOverwriteFile(
 				"systemd/clusteriocontroller.service",
 				`\
 [Unit]
@@ -474,12 +485,13 @@ WantedBy=multi-user.target
 
 	if (["standalone", "host"].includes(mode)) {
 		if (process.platform === "win32") {
-			await safeOutputFile(
+			let extraCaCertsLine = selfSignedCert ? `set "NODE_EXTRA_CA_CERTS=${selfSignedCert}"\n` : "";
+			await atomicOverwriteFile(
 				"run-host.cmd",
 				`\
 @echo off
 set "NODE_OPTIONS=--enable-source-maps %NODE_OPTIONS%"
-:restart
+${extraCaCertsLine}:restart
 call .\\node_modules\\.bin\\clusteriohost.cmd run --can-restart
 if %errorlevel% equ 0 exit /b
 if %errorlevel% equ 8 exit /b
@@ -487,19 +499,21 @@ goto restart
 `
 			);
 		} else {
-			await safeOutputFile(
+			let extraCaCertsLine = selfSignedCert ? `export "NODE_EXTRA_CA_CERTS=${selfSignedCert}"\n` : "";
+			await atomicOverwriteFile(
 				"run-host.sh",
 				`\
 #!/bin/bash
 export "NODE_OPTIONS=--enable-source-maps $NODE_OPTIONS"
-while true; do
+${extraCaCertsLine}while true; do
 	./node_modules/.bin/clusteriohost run --can-restart
 	if [[ $? -eq 0 || $? -eq 8 ]]; then exit $?; fi
 done
 `,
 				{ mode: 0o755 },
 			);
-			await safeOutputFile(
+			extraCaCertsLine = selfSignedCert ? `Environment=NODE_EXTRA_CA_CERTS=${selfSignedCert}\n` : "";
+			await atomicOverwriteFile(
 				"systemd/clusteriohost.service",
 				`\
 [Unit]
@@ -512,7 +526,7 @@ WorkingDirectory=${process.cwd()}
 KillMode=mixed
 KillSignal=SIGINT
 Environment=NODE_OPTIONS=--enable-source-maps
-ExecStart=${process.cwd()}/node_modules/.bin/clusteriohost run --log-level=warn --can-restart
+${extraCaCertsLine}ExecStart=${process.cwd()}/node_modules/.bin/clusteriohost run --log-level=warn --can-restart
 Restart=on-failure
 RestartPreventExitStatus=8
 
@@ -525,96 +539,87 @@ WantedBy=multi-user.target
 }
 
 // eslint-disable-next-line complexity
-async function inquirerMissingArgs(args) {
+async function promptMissingArgs(args) {
 	let answers = {};
 	if (args.mode) { answers.mode = args.mode; }
 	if (args["plugin-template"]) { answers.mode = "plugin-template"; }
-	answers = await inquirer.prompt([
-		{
-			type: "list",
-			name: "mode",
-			message: "Operating mode to install",
-			default: "standalone",
-			choices: [
-				{ name: "Standalone (install both controller and host on this computer)", value: "standalone" },
-				{ name: "Controller only", value: "controller" },
-				{ name: "Host only", value: "host" },
-				{ name: "Ctl only", value: "ctl" },
-				{ name: "Plugins only", value: "plugins" },
-				{ name: "Plugin template", value: "plugin-template" },
-			],
-		},
-	], answers);
+	answers.mode ??= await select({
+		message: "Operating mode to install",
+		default: "standalone",
+		choices: [
+			{ name: "Standalone (install both controller and host on this computer)", value: "standalone" },
+			{ name: "Controller only", value: "controller" },
+			{ name: "Host only", value: "host" },
+			{ name: "Ctl only", value: "ctl" },
+			{ name: "Plugins only", value: "plugins" },
+			{ name: "Plugin template", value: "plugin-template" },
+		],
+	});
 
 	if (["standalone", "controller"].includes(answers.mode)) {
 		if (args.admin) { answers.admin = args.admin; }
-		answers = await inquirer.prompt([
-			{
-				type: "input",
-				name: "admin",
-				message: "Admin account name",
-				validate: input => {
-					if (!input) {
-						return "May not be empty";
-					}
-					return true;
-				},
+		answers.admin ??= await input({
+			message: "Admin account name",
+			validate: value => {
+				if (!value) {
+					return "May not be empty";
+				}
+				return true;
 			},
-		], answers);
+		});
 
 		if (args.httpPort) { answers.httpPort = args.httpPort; }
-		answers = await inquirer.prompt([
-			{
-				type: "input",
-				name: "httpPort",
-				message: "HTTP port to listen on",
-				default: 8080,
-				validate: input => {
-					if (!input) {
-						return "May not be empty";
-					}
-					if (!Number.isInteger(Number(input))) {
-						return "Must be a number";
-					}
-					return true;
-				},
+		answers.httpPort ??= await input({
+			message: "HTTP port to listen on",
+			default: "8080",
+			validate: value => {
+				if (!value) {
+					return "May not be empty";
+				}
+				if (!Number.isInteger(Number(value))) {
+					return "Must be a number";
+				}
+				return true;
 			},
-		], answers);
+		});
+	}
+
+	if (answers.mode === "standalone") {
+		answers.hostName = args.hostName ?? "local";
+		const result = validateHostName(answers.hostName);
+		if (result !== true) {
+			throw new InstallError(result);
+		}
 	}
 
 	if (answers.mode === "host") {
 		if (args.hostName) { answers.hostName = args.hostName; }
-		answers = await inquirer.prompt([
-			{
-				type: "input",
-				name: "hostName",
-				message: "Name of host",
-			},
-		], answers);
+		if (args.controllerUrl) { answers.controllerUrl = args.controllerUrl; }
+		answers.hostName ??= await input({
+			message: "Name of host",
+			default: os.hostname(),
+			validate: validateHostName,
+		});
+		answers.controllerUrl ??= await input({
+			message: "Controller URL",
+			validate: validateControllerUrl,
+		});
+
+		// The prompts do not validate answers given as arguments
+		for (let result of [validateHostName(answers.hostName), validateControllerUrl(answers.controllerUrl)]) {
+			if (result !== true) {
+				throw new InstallError(result);
+			}
+		}
+		answers.controllerUrl = normaliseControllerUrl(answers.controllerUrl);
 	}
 
-	if (["host", "ctl"].includes(answers.mode)) {
+	if (answers.mode === "ctl") {
 		if (args.controllerUrl) { answers.controllerUrl = args.controllerUrl; }
-		answers = await inquirer.prompt([
-			{
-				type: "input",
-				name: "controllerUrl",
-				message: "Controller URL",
-			},
-		], answers);
+		answers.controllerUrl ??= await input({ message: "Controller URL" });
 
 		if (args.controllerToken) { answers.controllerToken = args.controllerToken; }
-		answers = await inquirer.prompt([
-			{
-				type: "input",
-				name: "controllerToken",
-				message: "Controller authentication Token",
-			},
-		], answers);
-	}
-
-	if (answers.mode === "host") {
-		validateHostToken(answers.controllerToken);
+		answers.controllerToken ??= await input({ message: "Controller authentication Token" });
 	}
 
 	if (["standalone", "host"].includes(answers.mode)) {
@@ -627,77 +632,42 @@ async function inquirerMissingArgs(args) {
 				myIp = await result.text();
 			} catch (err) { /* ignore */ }
 		}
-		answers = await inquirer.prompt([
-			{
-				type: "input",
-				name: "publicAddress",
-				message: "Public DNS/IP address of this server",
-				default: myIp,
-			},
-		], answers);
+		answers.publicAddress ??= await input({
+			message: "Public DNS/IP address of this server",
+			default: myIp,
+		});
 
 		if (args.factorioDir) { answers.factorioDir = args.factorioDir; }
 		let locations = factorioLocations[process.platform] || [];
 		let foundLocations = [];
 		for (let location of locations) {
-			if (await fs.pathExists(path.join(location, "data", "changelog.txt"))) {
+			if (await pathExists(path.join(location, "data", "changelog.txt"))) {
 				foundLocations.push(location);
 			}
 		}
-		if (process.platform === "linux") {
-			if (args.hasOwnProperty("downloadHeadless")) { answers.downloadHeadless = args.downloadHeadless; }
 
-			answers = await inquirer.prompt([
-				{
-					type: "confirm",
-					name: "downloadHeadless",
-					message: "(Linux only) Automatically download latest factorio release?",
-					default: true,
-				},
-			], answers);
-
-			if (!answers.factorioDir && answers.downloadHeadless) {
-				answers.factorioDir = "factorio";
-			}
-		}
-
-		answers = await inquirer.prompt([
-			{
-				type: "list",
-				name: "factorioDir",
-				message: "Path to Factorio installation",
-				choices: [
-					...foundLocations.map(location => ({ name: `${location} (auto detected)`, value: location })),
-					{ name: "Use local factorio directory, you must copy an installation to it", value: "factorio" },
-					{ name: "Provide path manually", value: null },
-				],
-			},
-		], answers);
+		answers.factorioDir ??= await select({
+			message: "Path to Factorio installation",
+			choices: [
+				...foundLocations.map(location => ({ name: `${location} (auto detected)`, value: location })),
+				{ name: "Use local factorio directory, you must copy an installation to it", value: "factorio" },
+				{ name: "Provide path manually", value: null },
+			],
+		});
 
 		if (answers.factorioDir === null) {
-			answers = await inquirer.prompt([
-				{
-					type: "input",
-					name: "factorioDir",
-					message: "Path to Factorio installation",
-					askAnswered: true,
-				},
-			], answers);
+			answers.factorioDir = await input({ message: "Path to Factorio installation" });
 		} else if (answers.factorioDir === "factorio") {
-			await fs.ensureDir("factorio");
+			await fs.mkdir("factorio", { recursive: true });
 		}
 	}
 
 	if (["standalone", "controller", "host"].includes(answers.mode)) {
 		if (args.hasOwnProperty("remoteNpm")) { answers.remoteNpm = args.remoteNpm; }
-		answers = await inquirer.prompt([
-			{
-				type: "confirm",
-				name: "remoteNpm",
-				message: "Allow remote updates via npm?",
-				default: true,
-			},
-		], answers);
+		answers.remoteNpm ??= await confirm({
+			message: "Allow remote updates and plugin installs from the web interface?",
+			default: true,
+		});
 	}
 
 	if (answers.mode === "plugin-template") {
@@ -708,29 +678,23 @@ async function inquirerMissingArgs(args) {
 			answers.pluginName = args["plugin-name"];
 		}
 		answers.plugins = [];
-		answers = await inquirer.prompt([
-			{
-				type: "checkbox",
-				name: "pluginTemplate",
-				message: "Plugin templates to use",
-				choices: [
-					{ name: "Controller", value: "controller" },
-					{ name: "Host", value: "host" },
-					{ name: "Instance", value: "instance" },
-					{ name: "Lua Module", value: "module" },
-					{ name: "Command Line", value: "ctl" },
-					{ name: "Web UI", value: "web" },
-					{ name: "No Typescript", value: "js" },
-					{ name: "No Config", value: "no_config" },
-				],
-			},
-			{
-				type: "input",
-				name: "pluginName",
-				message: "Name of your new plugin",
-				default: path.basename(path.resolve()),
-			},
-		], answers);
+		answers.pluginTemplate ??= await checkbox({
+			message: "Plugin templates to use",
+			choices: [
+				{ name: "Controller", value: "controller" },
+				{ name: "Host", value: "host" },
+				{ name: "Instance", value: "instance" },
+				{ name: "Lua Module", value: "module" },
+				{ name: "Command Line", value: "ctl" },
+				{ name: "Web UI", value: "web" },
+				{ name: "No Typescript", value: "js" },
+				{ name: "No Config", value: "no_config" },
+			],
+		});
+		answers.pluginName ??= await input({
+			message: "Name of your new plugin",
+			default: path.basename(path.resolve()),
+		});
 	}
 
 	if (dev) {
@@ -738,68 +702,17 @@ async function inquirerMissingArgs(args) {
 	} else if (args.plugins) {
 		answers.plugins = args.plugins;
 	}
-	answers = await inquirer.prompt([
-		{
-			type: "checkbox",
-			name: "plugins",
-			message: "Plugins to install",
-			choices: availablePlugins,
-			pageSize: 20,
-		},
-	], answers);
+	answers.plugins ??= await checkbox({
+		message: "Plugins to install",
+		choices: availablePlugins,
+		pageSize: 20,
+	});
 
 	return answers;
 }
 
-async function downloadLinuxServer() {
-	let res = await fetch("https://factorio.com/get-download/stable/headless/linux64");
-
-	// get the filename of the latest factorio archive from redirected url
-	const url = new URL(res.url); // The res is redirects, need final url
-	const filename = path.posix.basename(url.pathname);
-	const match = filename.match(/(?<=factorio_headless_x64_|factorio-headless_linux_)\d+\.\d+\.\d+(?=\.tar\.xz)/);
-	if (!match || !match.length) {
-		throw Error(`Unable to extract version from filename: ${filename}`);
-	}
-	const version = match[0];
-
-	const tmpDir = "temp/create-temp/";
-	const archivePath = tmpDir + filename;
-	const tmpArchivePath = `${archivePath}.tmp`;
-	const factorioDir = `factorio/${version}/`;
-	const tmpFactorioDir = tmpDir + version;
-
-	if (await fs.pathExists(factorioDir)) {
-		logger.warn(`setting downloadDir to ${factorioDir}, but not downloading because already existing`);
-	} else {
-		await fs.emptyDir(tmpDir);
-
-		logger.info("Downloading latest Factorio server release. This may take a while.");
-		const writeStream = fs.createWriteStream(tmpArchivePath);
-		stream.Readable.fromWeb(res.body).pipe(writeStream);
-
-		await finished(writeStream);
-
-		await fs.rename(tmpArchivePath, archivePath);
-		try {
-			await fs.ensureDir(tmpFactorioDir);
-			await execFile("tar", [
-				"xf", archivePath, "-C", tmpFactorioDir, "--strip-components", "1",
-			]);
-		} catch (e) {
-			logger.error("error executing command- do you have 'xz-utils' installed?");
-			throw e;
-		}
-
-		await fs.ensureDir("factorio");
-		await fs.rename(tmpFactorioDir, factorioDir);
-		await fs.unlink(archivePath);
-		await fs.rm(tmpDir);
-	}
-}
-
 async function main() {
-	let args = yargs
+	let yarg = yargs(process.argv.slice(2))
 		.option("log-level", {
 			nargs: 1, describe: "Log level to print to stdout", default: "info",
 			choices: ["none"].concat(Object.keys(levels)), type: "string",
@@ -820,18 +733,14 @@ async function main() {
 		.option("http-port", {
 			nargs: 1, describe: "HTTP port to listen on [standalone/controller]", type: "number",
 		})
-		.option("download-headless", {
-			describe: "Download the latest headless release [standalone/controller] [linux only]",
-			type: "boolean", nargs: 0,
-		})
 		.option("host-name", {
-			nargs: 1, describe: "Host name [host]", type: "string",
+			nargs: 1, describe: "Host name [standalone/host]", type: "string",
 		})
 		.option("controller-url", {
 			nargs: 1, describe: "Controller URL [host/ctl]", type: "string",
 		})
 		.option("controller-token", {
-			nargs: 1, describe: "Controller authentication token [host/ctl]", type: "string",
+			nargs: 1, describe: "Controller authentication token [ctl]", type: "string",
 		})
 		.option("public-address", {
 			nargs: 1, describe: "DNS/IP Address to connect to this server [standalone/host]", type: "string",
@@ -839,8 +748,12 @@ async function main() {
 		.option("factorio-dir", {
 			nargs: 1, describe: "Path to Factorio installation [standalone/host]", type: "string",
 		})
+		.option("self-signed-cert", {
+			nargs: 1, describe: "Path to self-signed certificate of the controller [standalone/host]", type: "string",
+		})
 		.option("remote-npm", {
-			nargs: 0, description: "Allow remote updates via npm [standalone/controller/host]", type: "boolean",
+			nargs: 0, type: "boolean", description:
+				"Allow remote updates and plugin installs from the web interface [standalone/controller/host]",
 		})
 		.option("plugins", {
 			array: true, describe: "Plugins to install", type: "string",
@@ -855,20 +768,14 @@ async function main() {
 	;
 
 	if (process.platform === "linux") {
-		args = args
+		yarg = yarg
 			.option("allow-install-as-root", {
 				nargs: 0, describe: "(Linux only) Allow installing as root (not recommended)", type: "boolean",
 			})
-			.option("download-headless", {
-				nargs: 0,
-				describe: "(Linux only) Automatically download and unpack the latest factorio release. " +
-					"Can be set to false using --no-download-headless.",
-				type: "boolean",
-			})
 		;
 	}
 
-	args = args.argv;
+	const args = yarg.parse();
 
 	setLogLevel(args.logLevel === "none" ? -1 : levels[args.logLevel]);
 	dev = args.dev;
@@ -883,7 +790,7 @@ async function main() {
 		return;
 	}
 
-	let answers = await inquirerMissingArgs(args);
+	let answers = await promptMissingArgs(args);
 	logger.verbose(JSON.stringify(answers));
 
 	if (answers.pluginTemplate) {
@@ -891,13 +798,6 @@ async function main() {
 		return;
 	}
 
-	if (answers.downloadHeadless) {
-		if (answers.factorioDir !== "factorio") {
-			throw new InstallError("--download-headless option requires --factorio-dir to be set to factorio");
-		}
-		await downloadLinuxServer();
-	}
-
 	if (!dev) {
 		await installClusterio(answers.mode, answers.plugins);
 	}
@@ -905,54 +805,42 @@ async function main() {
 	let adminToken = null;
 	if (["standalone", "controller"].includes(answers.mode)) {
 		logger.info("Setting up controller");
+		await execController(["config", "create"]);
 		await execController(["bootstrap", "create-admin", answers.admin]);
 		await execController(["config", "set", "controller.http_port", answers.httpPort]);
-		await execController(["config", "set", "controller.allow_remote_updates", answers.remoteNpm]);
-		await execController(["config", "set", "controller.allow_plugin_updates", answers.remoteNpm]);
+		await setRemoteUpdates(execController, "controller", answers.remoteNpm);
 		let result = await execController(["bootstrap", "generate-user-token", answers.admin]);
 		adminToken = result.stdout.split("\n").slice(-2)[0];
 	}
 
-	if (answers.mode === "standalone") {
+	if (["standalone", "host"].includes(answers.mode)) {
 		logger.info("Setting up host");
-		await execHost(["config", "set", "host.name", "local"]);
-
-		let result = await execHost(["config", "show", "host.id"]);
-		let hostId = Number.parseInt(result.stdout.split("\n").slice(-2)[0], 10);
-
-		result = await execController(["bootstrap", "generate-host-token", hostId]);
-		let hostToken = result.stdout.split("\n").slice(-2)[0];
-
-		// Default to localhost on correct port for host in standalone mode
-		await execHost(["config", "set", "host.controller_url", `http://localhost:${answers.httpPort}/`]);
-		await execHost(["config", "set", "host.controller_token", hostToken]);
-		await execHost(["config", "set", "host.public_address", answers.publicAddress]);
-		await execHost(["config", "set", "host.factorio_directory", answers.factorioDir]);
-		await execHost(["config", "set", "host.allow_remote_updates", answers.remoteNpm]);
-		await execHost(["config", "set", "host.allow_plugin_updates", answers.remoteNpm]);
+		await execHost(["config", "create"]);
 	}
 
-	if (answers.mode === "host") {
-		logger.info("Setting up host");
-		let hostId = JSON.parse(Buffer.from(answers.controllerToken.split(".")[1], "base64")).host;
-		await execHost(["config", "set", "host.id", hostId]);
+	if (answers.mode === "standalone") {
+		// Default to localhost on correct port for host in standalone mode
+		answers.controllerUrl = `http://localhost:${answers.httpPort}/`;
+	}
+
+	if (["standalone", "host"].includes(answers.mode)) {
+		// The host requests to join the cluster when it is started.
 		await execHost(["config", "set", "host.name", answers.hostName]);
 		await execHost(["config", "set", "host.controller_url", answers.controllerUrl]);
-		await execHost(["config", "set", "host.controller_token", answers.controllerToken]);
 		await execHost(["config", "set", "host.public_address", answers.publicAddress]);
 		await execHost(["config", "set", "host.factorio_directory", answers.factorioDir]);
-		await execHost(["config", "set", "host.allow_remote_updates", answers.remoteNpm]);
-		await execHost(["config", "set", "host.allow_plugin_updates", answers.remoteNpm]);
+		await setRemoteUpdates(execHost, "host", answers.remoteNpm);
 	}
 
 	if (!dev && ["standalone", "controller", "host"].includes(answers.mode)) {
 		logger.info("Writing run scripts");
-		await writeScripts(answers.mode);
+		await writeScripts(answers.mode, args.selfSignedCert);
 	}
 
 	if (answers.mode === "ctl") {
-		await execCtl(["control-config", "set", "control.controller_url", answers.controllerUrl]);
-		await execCtl(["control-config", "set", "control.controller_token", answers.controllerToken]);
+		await execCtl(["config", "create"]);
+		await execCtl(["config", "set", "ctl.controller_url", answers.controllerUrl]);
+		await execCtl(["config", "set", "ctl.controller_token", answers.controllerToken]);
 	}
 
 	/* eslint-disable no-console */
@@ -963,9 +851,13 @@ async function main() {
 	/* eslint-enable no-console */
 }
 
-if (module === require.main) {
+if (import.meta.main) {
 	main().catch(err => {
-		if (err instanceof InstallError) {
+		process.exitCode = 1;
+		if (err.name === "ExitPromptError") {
+			// Ctrl+C at a prompt
+			process.exitCode = 130;
+		} else if (err instanceof InstallError) {
 			logger.error(err.message);
 		} else {
 			logger.fatal(`

packages/create/escape_arg.js

@@ -1,6 +1,4 @@
-"use strict";
-
-function escapeArg(arg) {
+export function escapeArg(arg) {
 	// When shell: true is used execFile does not escaping of arguments, they are
 	// simply joined by space and then passed to the shell.
 
@@ -56,7 +54,3 @@ function escapeArg(arg) {
 	}
 	return `"${arg.replace(/[$`"\\]/g, "\\$&")}"`;
 }
-
-module.exports = {
-	escapeArg,
-};

packages/create/logging.js

@@ -1,8 +1,7 @@
 /* eslint-disable no-console */
-"use strict";
-const chalk = require("chalk");
+import chalk from "chalk";
 
-const levels = Object.freeze({
+export const levels = Object.freeze({
 	fatal: 0,
 	error: 1,
 	warn: 2,
@@ -11,7 +10,7 @@ const levels = Object.freeze({
 	verbose: 6,
 });
 
-const colors = {
+export const colors = {
 	fatal: "inverse red",
 	error: "bold redBright",
 	warn: "bold yellowBright",
@@ -21,7 +20,7 @@ const colors = {
 };
 
 let maxLogLevel = levels.info;
-const logger = {};
+export const logger = {};
 for (let [name, level] of Object.entries(levels)) {
 	// eslint-disable-next-line no-loop-func
 	logger[name] = message => {
@@ -42,10 +41,6 @@ for (let [name, level] of Object.entries(levels)) {
 	};
 }
 
-module.exports = {
-	colors,
-	levels,
-	setLogLevel: (level) => { maxLogLevel = level; },
-	logger,
-};
-
+export function setLogLevel(level) {
+	maxLogLevel = level;
+}

packages/create/package.json

@@ -1,27 +1,42 @@
 {
 	"name": "@clusterio/create",
+	"version": "2.0.3",
 	"description": "Installer for clusterio",
-	"author": "Hornwitser",
+	"homepage": "https://github.com/clusterio/clusterio#readme",
+	"author": "Hornwitser <github@hornwitser.no>",
 	"license": "MIT",
-	"version": "2.0.0-alpha.22b",
-	"main": "create.js",
-	"bin": {
-		"clusteriocreate": "./create.js"
-	},
+	
 	"keywords": [
 		"clusterio",
 		"factorio"
 	],
-	"engines": {
-		"node": ">=20"
+
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/clusterio/clusterio"
 	},
-	"dependencies": {
-		"chalk": "catalog:",
-		"fs-extra": "catalog:",
-		"inquirer": "^8.2.4",
-		"yargs": "^17.7.2"
+	"bugs": {
+		"url": "https://github.com/clusterio/clusterio/issues"
 	},
 	"publishConfig": {
 		"access": "public"
+	},
+
+	"type": "module",
+	"main": "create.js",
+	"bin": {
+		"clusteriocreate": "./create.js"
+	},
+	"engines": {
+		"node": "^22.18.0 || >=24.2.0"
+	},
+
+	"dependencies": {
+		"@inquirer/checkbox": "^5.2.8",
+		"@inquirer/confirm": "^6.3.5",
+		"@inquirer/input": "^5.1.9",
+		"@inquirer/select": "^5.2.8",
+		"chalk": "catalog:",
+		"yargs": "catalog:"
 	}
 }

packages/create/template.js

@@ -1,9 +1,8 @@
-"use strict";
-const { logger } = require("./logging");
-const fs = require("fs-extra");
-const path = require("path");
+import { logger } from "./logging.js";
+import fs from "node:fs/promises";
+import path from "node:path";
 
-const _package = require("./package.json");
+import _package from "./package.json" with { type: "json" };
 
 async function copyTemplateFile(src, dst, properties) {
 	logger.verbose(`Writing ${dst} from template ${src}`);
@@ -61,9 +60,15 @@ async function copyTemplateFile(src, dst, properties) {
 			return include ? content : "";
 		});
 
+	// Create folder for output file
+	const { dir } = path.parse(dst);
+	if (dir) {
+		await fs.mkdir(dir, { recursive: true });
+	}
+
 	// Attempt to write the output file, warn if it already exists
 	try {
-		await fs.outputFile(dst, outputData, { flag: "wx" });
+		await fs.writeFile(dst, outputData, { flag: "wx" });
 	} catch (err) {
 		if (err.code === "EEXIST") {
 			logger.warn(`Could not create file ${dst} because it already exists`);
@@ -73,7 +78,7 @@ async function copyTemplateFile(src, dst, properties) {
 	}
 }
 
-async function copyPluginTemplates(pluginName, templates) {
+export async function copyPluginTemplates(pluginName, templates) {
 	logger.info(`Please wait, coping templates for ${templates.join(", ")}`);
 	const files = new Map();
 	const prepare = [];
@@ -83,15 +88,18 @@ async function copyPluginTemplates(pluginName, templates) {
 	const config = !templates.includes("no_config") && templates.some(value => (
 		["controller", "host", "instance", "ctl"].includes(value)
 	));
-	const webpack = config || templates.includes("controller") || templates.includes("web");
+	const webBuild = config || templates.includes("controller") || templates.includes("web");
 
 	// A count of the number of isolated contexts the plugin runs under
 	let pluginContexts = 0;
 
 	// Get the file extension and path to the templates
 	const ext = javascriptOnly ? "js" : "ts";
-	const templatePath = path.resolve(__dirname, javascriptOnly ? "./templates/plugin-js" : "./templates/plugin-ts");
-	const commonPath = path.resolve(__dirname, "./templates/common");
+	const templatePath = path.resolve(
+		import.meta.dirname,
+		javascriptOnly ? "./templates/plugin-js" : "./templates/plugin-ts"
+	);
+	const commonPath = path.resolve(import.meta.dirname, "./templates/common");
 
 	// Files included in all templates
 	files.set(".gitignore", path.join(commonPath, "template.gitignore"));
@@ -105,15 +113,15 @@ async function copyPluginTemplates(pluginName, templates) {
 		files.set("tsconfig.json", path.join(templatePath, "tsconfig.json"));
 		files.set("tsconfig.node.json", path.join(templatePath, "tsconfig.node.json"));
 		files.set("tsconfig.base.json", path.join(templatePath, "tsconfig.base.json"));
-		if (webpack) {
+		if (webBuild) {
 			files.set("tsconfig.browser.json", path.join(templatePath, "tsconfig.browser.json"));
 		}
 	}
 
-	// Files and dependences to support webpack
-	if (webpack) {
-		prepare.push("webpack-cli --mode production");
-		files.set("webpack.config.js", path.join(commonPath, "webpack.config.js"));
+	// Files and dependences to support the web build
+	if (webBuild) {
+		prepare.push("vite build");
+		files.set("vite.config.js", path.join(commonPath, "vite.config.js"));
 		if (templates.includes("web")) {
 			files.set(`web/index.${ext}x`, path.join(templatePath, `web/plugin.${ext}x`));
 			pluginContexts += 1;
@@ -177,7 +185,7 @@ async function copyPluginTemplates(pluginName, templates) {
 		ctl: templates.includes("ctl"),
 		web: templates.includes("web"),
 		// Macro flags for context requirements
-		webpack: webpack,
+		web_build: webBuild,
 		config: config,
 		// String values for package json
 		clusterio_version: _package.version,
@@ -196,7 +204,3 @@ async function copyPluginTemplates(pluginName, templates) {
 	await Promise.all(writes);
 	logger.info("Successfully wrote all template files");
 }
-
-module.exports = {
-	copyPluginTemplates,
-};

packages/create/templates/common/package.json

@@ -2,6 +2,7 @@
 	"name": "__plugin_name__",
 	"version": "0.1.0",
 	"description": "Example Description. Package. Change me in package.json",
+	"type": "module",
 //%if typescript
 	"main": "dist/node/index.js",
 //%endif
@@ -18,9 +19,6 @@
 //%if controller
 		"@clusterio/controller": "^__clusterio_version__",
 //%endif
-//%if webpack
-		"@clusterio/web_ui": "^__clusterio_version__",
-//%endif
 //%if host
 		"@clusterio/host": "^__clusterio_version__",
 //%endif
@@ -29,30 +27,53 @@
 //%endif
 		"@clusterio/lib": "^__clusterio_version__"
 	},
+//%if controller | host | ctl
+	"peerDependenciesMeta": {
+//%endif
+//%if controller
+		"@clusterio/controller": {
+			"optional": true
+//%endif
+//%if controller & host | controller & ctl
+		},
+//%endif
+//%if host
+		"@clusterio/host": {
+			"optional": true
+//%endif
+//%if host & ctl
+		},
+//%endif
+//%if ctl
+		"@clusterio/ctl": {
+			"optional": true
+//%endif
+//%if controller | host | ctl
+		}
+	},
+//%endif
 	"devDependencies": {
 //%// Typescript and type declarations
 //%if typescript
-		"typescript": "^5.5.3",
-		"@types/node": "^20.4.5",
+		"typescript": "^7.0.2",
+		"@types/node": "^24.13.4",
 //%endif
 //%if typescript & web
-		"@types/react": "^18.2.21",
+		"@types/react": "^18.3.31",
 //%endif
 //%// Everything else
 //%if web
-		"antd": "^5.13.0",
+		"antd": "^5.29.3",
 		"react": "^18.2.0",
 		"react-dom": "^18.2.0",
 //%endif
-//%if webpack
-		"webpack": "^5.88.2",
-		"webpack-cli": "^5.1.4",
-		"webpack-merge": "^5.9.0",
+//%if web_build
+		"vite": "^8.3.4",
 //%endif
 //%if controller
 		"@clusterio/controller": "^__clusterio_version__",
 //%endif
-//%if webpack
+//%if web_build
 		"@clusterio/web_ui": "^__clusterio_version__",
 //%endif
 //%if host
@@ -64,7 +85,7 @@
 		"@clusterio/lib": "^__clusterio_version__"
 	},
 	"dependencies": {
-		"@sinclair/typebox": "^0.30.4"
+		"@sinclair/typebox": "^0.34.52"
 	},
 	"publishConfig": {
 		"access": "public"

packages/create/templates/common/template.npmignore

@@ -1,3 +1,3 @@
-webpack.config.js
+vite.config.js
 dist/browser
 dist/web

packages/create/templates/common/vite.config.js

@@ -0,0 +1,6 @@
+import { defineConfig } from "vite";
+import { clusterioPlugin } from "@clusterio/web_ui/vite.mjs";
+
+export default defineConfig({
+	plugins: [clusterioPlugin()],
+});

packages/create/templates/common/webpack.config.js

@@ -1,34 +0,0 @@
-"use strict";
-const path = require("path");
-const webpack = require("webpack");
-const { merge } = require("webpack-merge");
-
-const common = require("@clusterio/web_ui/webpack.common");
-
-module.exports = (env = {}, argv = {}) => merge(common(env, argv), {
-	context: __dirname,
-	entry: "./web/index.__ext__x",
-	output: {
-		path: path.resolve(__dirname, "dist", "web"),
-	},
-	plugins: [
-		new webpack.container.ModuleFederationPlugin({
-			name: "__plugin_name__",
-			library: { type: "window", name: "plugin___plugin_name__" },
-			exposes: {
-				"./": "./index.__ext__",
-				"./package.json": "./package.json",
-				"./web": "./web/index.__ext__x",
-			},
-			shared: {
-				"@clusterio/lib": { import: false },
-				"@clusterio/web_ui": { import: false },
-//%if web
-				"antd": { import: false },
-				"react": { import: false },
-				"react-dom": { import: false },
-//%endif
-			},
-		}),
-	],
-});

packages/create/templates/plugin-js/controller.js

@@ -1,85 +1,66 @@
-"use strict";
-const lib = require("@clusterio/lib");
-const { BaseControllerPlugin } = require("@clusterio/controller");
+import * as lib from "@clusterio/lib";
 //%if multi_context // Messages requires multi context
 
-const {
+import {
 	PluginExampleEvent, PluginExampleRequest,
 //%endif
 //%if controller & web // Subscribing requires web content and the controller
 	ExampleSubscribableUpdate, ExampleSubscribableValue,
 //%endif
 //%if multi_context // Messages requires multi context
-} = require("./messages");
+} from "./messages.js";
 //%endif
 
-class ControllerPlugin extends BaseControllerPlugin {
+export default async function loadControllerPlugin(context) {
+	const { controller, logger, plugin } = context;
 //%if controller & web // Subscribing requires web content and the controller
-	exampleDatabase;
-	storageDirty = false;
-
-//%endif
-//%if multi_context // Subscribing requires multi context
-	async init() {
-		this.controller.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
-		this.controller.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
-//%endif
-//%if controller & web // Subscribing requires web content and the controller
-		this.controller.subscriptions.handle(ExampleSubscribableUpdate, this.handleExampleSubscription.bind(this));
-		// If needed, replace with loading from database file such as lib.Datastore
-		this.exampleDatabase = new Map([["foo", new ExampleSubscribableValue("foo", 0, false)]]);
-//%endif
-//%if multi_context // Subscribing requires multi context
-	}
+	// If needed, replace with loading from database file such as lib.Datastore
+	const exampleDatabase = new Map([["foo", new ExampleSubscribableValue("foo", 0, false)]]);
 //%endif
+//%if multi_context // Messages requires multi context
 
-	async onControllerConfigFieldChanged(field, curr, prev) {
-		this.logger.info(`controller::onControllerConfigFieldChanged ${field}`);
-	}
-//%if instance
+	controller.handle(PluginExampleEvent, async (event) => {
+		logger.info(JSON.stringify(event));
+	});
 
-	async onInstanceConfigFieldChanged(instance, field, curr, prev) {
-		this.logger.info(`controller::onInstanceConfigFieldChanged ${instance.id} ${field}`);
-	}
-//%endif
-
-	async onSaveData() {
-		this.logger.info("controller::onSaveData");
-	}
-
-	async onShutdown() {
-		this.logger.info("controller::onShutdown");
-	}
-
-	async onPlayerEvent(instance, event) {
-		this.logger.info(`controller::onPlayerEvent ${instance.id} ${JSON.stringify(event)}`);
-	}
-//%if multi_context
-
-	async handlePluginExampleEvent(event) {
-		this.logger.info(JSON.stringify(event));
-	}
-
-	async handlePluginExampleRequest(request) {
-		this.logger.info(JSON.stringify(request));
+	controller.handle(PluginExampleRequest, async (request) => {
+		logger.info(JSON.stringify(request));
 		return {
 			myResponseString: request.myString,
 			myResponseNumbers: request.myNumberArray,
 		};
-	}
+	});
 //%endif
 //%if controller & web // Subscribing requires web content and the controller
 
-	async handleExampleSubscription(request) {
-		this.logger.info(JSON.stringify(request));
-		const values = [...this.exampleDatabase.values()].filter(
+	controller.subscriptions.handle(ExampleSubscribableUpdate, async (request) => {
+		logger.info(JSON.stringify(request));
+		const values = [...exampleDatabase.values()].filter(
 			value => value.updatedAtMs > request.lastRequestTimeMs,
 		);
 		return values.length ? new ExampleSubscribableUpdate(values) : null;
-	}
+	});
 //%endif
-}
 
-module.exports = {
-	ControllerPlugin,
-};
+	controller.hooks.controllerConfigFieldChanged.attach(plugin.name, async (field, curr, prev) => {
+		logger.info(`controller::controllerConfigFieldChanged ${field}`);
+	});
+//%if instance
+
+	controller.hooks.instanceConfigFieldChanged.attach(plugin.name, async (instance, field, curr, prev) => {
+		logger.info(`controller::instanceConfigFieldChanged ${instance.id} ${field}`);
+	});
+//%endif
+
+	controller.hooks.save.attach(plugin.name, async () => {
+		logger.info("controller::save");
+	});
+
+	controller.hooks.shutdown.attach(plugin.name, async () => {
+		logger.info("controller::shutdown");
+	});
+
+	controller.hooks.playerEvent.attach(plugin.name, async (instance, event) => {
+		logger.info(`controller::playerEvent ${instance.id} ${JSON.stringify(event)}`);
+	});
+}

packages/create/templates/plugin-js/ctl.js

@@ -1,8 +1,6 @@
-"use strict";
-const { BaseCtlPlugin } = require("@clusterio/ctl");
-const { CommandTree, Command } = require("@clusterio/lib");
+import { CommandTree, Command } from "@clusterio/lib";
 //%// We do not check for multi context here because it doesn't make sense to have a ctl without messages
-const { PluginExampleEvent, PluginExampleRequest } = require("./messages");
+import { PluginExampleEvent, PluginExampleRequest } from "./messages.js";
 /* eslint-disable no-console */
 
 const pluginCommands = new CommandTree({
@@ -13,20 +11,16 @@ pluginCommands.add(new Command({
 	definition: ["my-command <foo>", "My command description that I really should change", (yargs) => {
 		yargs.positional("foo", { describe: "foo is foo!", type: "string" });
 	}],
-	handler: async function(args, control) {
-		const response = await control.sendTo("controller", new PluginExampleRequest(args.foo, [1, 2, 3]));
+	handler: async function(args, ctl) {
+		const response = await ctl.sendTo("controller", new PluginExampleRequest(args.foo, [1, 2, 3]));
 		console.log(response);
 		console.log(args);
 	},
 }));
 
 /* eslint-enable no-console */
-class CtlPlugin extends BaseCtlPlugin {
-	async addCommands(rootCommand) {
+export default async function loadCtlPlugin(context) {
+	context.hooks.addCommands.attach(context.plugin.name, async (rootCommand) => {
 		rootCommand.add(pluginCommands);
-	}
+	});
 }
-
-module.exports = {
-	CtlPlugin,
-};

packages/create/templates/plugin-js/host.js

@@ -1,41 +1,30 @@
-"use strict";
-const lib = require("@clusterio/lib");
-const { BaseHostPlugin } = require("@clusterio/host");
+import * as lib from "@clusterio/lib";
 //%if multi_context
-const { PluginExampleEvent, PluginExampleRequest } = require("./messages");
+import { PluginExampleEvent, PluginExampleRequest } from "./messages.js";
 //%endif
 
-class HostPlugin extends BaseHostPlugin {
-//%if multi_context
-	async init() {
-		this.host.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
-		this.host.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
-	}
-//%endif
-
-	async onHostConfigFieldChanged(field, curr, prev) {
-		this.logger.info(`host::onInstanceConfigFieldChanged ${field}`);
-	}
-
-	async onShutdown() {
-		this.logger.info("host::onShutdown");
-	}
+export default async function loadHostPlugin(context) {
+	const { host, logger, plugin } = context;
 //%if multi_context
 
-	async handlePluginExampleEvent(event) {
-		this.logger.info(JSON.stringify(event));
-	}
+	host.handle(PluginExampleEvent, async (event) => {
+		logger.info(JSON.stringify(event));
+	});
 
-	async handlePluginExampleRequest(request) {
-		this.logger.info(JSON.stringify(request));
+	host.handle(PluginExampleRequest, async (request) => {
+		logger.info(JSON.stringify(request));
 		return {
 			myResponseString: request.myString,
 			myResponseNumbers: request.myNumberArray,
 		};
-	}
+	});
 //%endif
-}
 
-module.exports = {
-	HostPlugin,
-};
+	host.hooks.hostConfigFieldChanged.attach(plugin.name, async (field, curr, prev) => {
+		logger.info(`host::hostConfigFieldChanged ${field}`);
+	});
+
+	host.hooks.shutdown.attach(plugin.name, async () => {
+		logger.info("host::shutdown");
+	});
+}

packages/create/templates/plugin-js/index.js

@@ -1,42 +1,9 @@
-"use strict";
-const lib = require("@clusterio/lib");
+import * as lib from "@clusterio/lib";
 //%if multi_context
-const Messages = require("./messages");
-
-lib.definePermission({
-	name: "__plugin_name__.example.permission.event",
-	title: "Example permission event",
-	description: "Example Description. Event. Change me in index.js",
-	grantByDefault: true,
-});
-
-lib.definePermission({
-	name: "__plugin_name__.example.permission.request",
-	title: "Example permission request",
-	description: "Example Description. Request. Change me in index.js",
-	grantByDefault: true,
-});
-//%endif
-//%if controller & web // Subscribing requires web content and the controller
-
-lib.definePermission({
-	name: "__plugin_name__.example.permission.subscribe",
-	title: "Example permission subscribe",
-	description: "Example Description. Subscribe. Change me in index.js",
-	grantByDefault: true,
-});
-//%endif
-//%if web
-
-lib.definePermission({
-	name: "__plugin_name__.page.view",
-	title: "Example page view permission",
-	description: "Example Description. View. Change me in index.js",
-	grantByDefault: true,
-});
+import * as Messages from "./messages.js";
 //%endif
 
-const plugin = {
+export const plugin = {
 	name: "__plugin_name__",
 	title: "__plugin_name__",
 	description: "Example Description. Plugin. Change me in index.js",
@@ -44,7 +11,7 @@ const plugin = {
 
 //%endif
 //%if controller
-	controllerEntrypoint: "./dist/node/controller",
+	controllerEntrypoint: "./dist/node/controller.js",
 //%endif
 //%if controller & config
 	controllerConfigFields: {
@@ -60,7 +27,7 @@ const plugin = {
 
 //%endif
 //%if host
-	hostEntrypoint: "./dist/node/host",
+	hostEntrypoint: "./dist/node/host.js",
 //%endif
 //%if host & config
 	hostConfigFields: {
@@ -76,7 +43,7 @@ const plugin = {
 
 //%endif
 //%if instance | module // Modules load an empty instance plugin
-	instanceEntrypoint: "./dist/node/instance",
+	instanceEntrypoint: "./dist/node/instance.js",
 //%endif
 //%if instance & config
 	instanceConfigFields: {
@@ -92,12 +59,12 @@ const plugin = {
 
 //%endif
 //%if ctl
-	ctlEntrypoint: "./dist/node/ctl",
+	ctlEntrypoint: "./dist/node/ctl.js",
 //%endif
 //%if ctl & config
-	controlConfigFields: {
-		"__plugin_name__.myControlField": {
-			title: "My Control Field",
+	ctlConfigFields: {
+		"__plugin_name__.myCtlField": {
+			title: "My Ctl Field",
 			description: "This should be removed from index.js",
 			type: "string",
 			initialValue: "Remove Me",
@@ -116,6 +83,43 @@ const plugin = {
 //%if multi_context // Subscribing requires multi context
 	],
 //%endif
+//%if multi_context | web
+
+	permissions: [
+//%endif
+//%if multi_context
+		{
+			name: "__plugin_name__.example.permission.event",
+			title: "Example permission event",
+			description: "Example Description. Event. Change me in index.js",
+			grantByDefault: true,
+		},
+		{
+			name: "__plugin_name__.example.permission.request",
+			title: "Example permission request",
+			description: "Example Description. Request. Change me in index.js",
+			grantByDefault: true,
+		},
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+		{
+			name: "__plugin_name__.example.permission.subscribe",
+			title: "Example permission subscribe",
+			description: "Example Description. Subscribe. Change me in index.js",
+			grantByDefault: true,
+		},
+//%endif
+//%if web
+		{
+			name: "__plugin_name__.page.view",
+			title: "Example page view permission",
+			description: "Example Description. View. Change me in index.js",
+			grantByDefault: true,
+		},
+//%endif
+//%if multi_context | web
+	],
+//%endif
 //%if web // Web content template has an example route which is the plugin name
 
 	webEntrypoint: "./web",
@@ -124,7 +128,3 @@ const plugin = {
 	],
 //%endif
 };
-
-module.exports = {
-	plugin,
-};

packages/create/templates/plugin-js/instance.js

@@ -1,74 +1,56 @@
-"use strict";
-const lib = require("@clusterio/lib");
-const { BaseInstancePlugin } = require("@clusterio/host");
+import * as lib from "@clusterio/lib";
 //%if multi_context
-const { PluginExampleEvent, PluginExampleRequest } = require("./messages");
+import { PluginExampleEvent, PluginExampleRequest } from "./messages.js";
 //%endif
 
-class InstancePlugin extends BaseInstancePlugin {
-//%if multi_context | module
-	async init() {
-//%if multi_context
-		this.instance.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
-		this.instance.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
-//%endif
-//%if module
-		this.instance.server.handle("__plugin_name__-plugin_example_ipc", this.handlePluginExampleIPC.bind(this));
-//%endif
-//%if multi_context | module
-	}
-//%endif
-
-	async onInstanceConfigFieldChanged(field, curr, prev) {
-		this.logger.info(`instance::onInstanceConfigFieldChanged ${field}`);
-	}
-
-	async onStart() {
-		// Called once rcon becomes available
-		this.logger.info("instance::onStart");
-	}
-
-	async onStop() {
-		// Called during normal exits before rcon becomes unavailable
-		this.logger.info("instance::onStop");
-	}
-
-	onExit() {
-		// Called during all exits, including crashes and init failures, rcon is not available
-		this.logger.info("instance::onExit");
-	}
-
-
-	async onPlayerEvent(event) {
-		this.logger.info(`onPlayerEvent::onPlayerEvent ${JSON.stringify(event)}`);
-//%if module
-		if (this.instance.status === "running") {
-			await this.sendRcon("/sc __plugin_name__.foo()");
-		}
-//%endif
-	}
+export default async function loadInstancePlugin(context) {
+	const { instance, logger, plugin } = context;
 //%if multi_context
 
-	async handlePluginExampleEvent(event) {
-		this.logger.info(JSON.stringify(event));
-	}
+	instance.handle(PluginExampleEvent, async (event) => {
+		logger.info(JSON.stringify(event));
+	});
 
-	async handlePluginExampleRequest(request) {
-		this.logger.info(JSON.stringify(request));
+	instance.handle(PluginExampleRequest, async (request) => {
+		logger.info(JSON.stringify(request));
 		return {
 			myResponseString: request.myString,
 			myResponseNumbers: request.myNumberArray,
 		};
-	}
+	});
 //%endif
 //%if module
 
-	async handlePluginExampleIPC(event) {
-		this.logger.info(JSON.stringify(event));
-	}
+	instance.server.handle("__plugin_name__-plugin_example_ipc", async (event) => {
+		logger.info(JSON.stringify(event));
+	});
 //%endif
-}
 
-module.exports = {
-	InstancePlugin,
-};
+	instance.hooks.instanceConfigFieldChanged.attach(plugin.name, async (field, curr, prev) => {
+		logger.info(`instance::instanceConfigFieldChanged ${field}`);
+	});
+
+	instance.hooks.start.attach(plugin.name, async () => {
+		// Called once rcon becomes available
+		logger.info("instance::start");
+	});
+
+	instance.hooks.stop.attach(plugin.name, async () => {
+		// Called during normal exits before rcon becomes unavailable
+		logger.info("instance::stop");
+	});
+
+	instance.hooks.exit.attach(plugin.name, () => {
+		// Called during all exits, including crashes and init failures, rcon is not available
+		logger.info("instance::exit");
+	});
+
+	instance.hooks.playerEvent.attach(plugin.name, async (event) => {
+		logger.info(`instance::playerEvent ${JSON.stringify(event)}`);
+//%if module
+		if (instance.status === "running") {
+			await instance.sendRcon("/sc __plugin_name__.foo()", false, plugin.name);
+		}
+//%endif
+	});
+}

packages/create/templates/plugin-js/instance_empty.js

@@ -1,11 +1,3 @@
-"use strict";
-const { BaseInstancePlugin } = require("@clusterio/host");
-
-class InstancePlugin extends BaseInstancePlugin {
-	// This class is empty because an instance plugin must be defined for a module to be injected
-	// This requirement may change in the future to allow for standalone modules
-}
-
-module.exports = {
-	InstancePlugin,
-};
+// This entrypoint is empty because an instance entrypoint must be defined for a module to be injected
+// This requirement may change in the future to allow for standalone modules
+export default async function loadInstancePlugin(context) { }

packages/create/templates/plugin-js/messages.js

@@ -1,8 +1,7 @@
-"use strict";
-const { plainJson, jsonArray, JsonBoolean, JsonNumber, JsonString, StringEnum } = require("@clusterio/lib");
-const { Type } = require("@sinclair/typebox");
+import { plainJson, jsonArray, JsonBoolean, JsonNumber, JsonString, StringEnum } from "@clusterio/lib";
+import { Type } from "@sinclair/typebox";
 
-class PluginExampleEvent {
+export class PluginExampleEvent {
 	static type = "event";
 	static src = ["host", "control"];
 	static dst = ["controller", "host", "instance"];
@@ -24,7 +23,7 @@ class PluginExampleEvent {
 	}
 }
 
-class PluginExampleRequest {
+export class PluginExampleRequest {
 	static type = "request";
 	static src = ["host", "control"];
 	static dst = ["controller", "host", "instance"];
@@ -52,7 +51,7 @@ class PluginExampleRequest {
 }
 //%if controller & web // Subscribing requires web content and the controller
 
-class ExampleSubscribableValue {
+export class ExampleSubscribableValue {
 	constructor(id, updatedAtMs, isDeleted) {
 		this.id = id;
 		this.updatedAtMs = updatedAtMs;
@@ -70,7 +69,7 @@ class ExampleSubscribableValue {
 	}
 }
 
-class ExampleSubscribableUpdate {
+export class ExampleSubscribableUpdate {
 	static type = "event";
 	static src = "controller";
 	static dst = "control";
@@ -90,12 +89,3 @@ class ExampleSubscribableUpdate {
 	}
 }
 //%endif
-
-module.exports = {
-	PluginExampleEvent,
-	PluginExampleRequest,
-//%if controller & web // Subscribing requires web content and the controller
-	ExampleSubscribableValue,
-	ExampleSubscribableUpdate,
-//%endif
-};

packages/create/templates/plugin-js/web/plugin.jsx

@@ -10,7 +10,7 @@ import React, {
 // } from "antd";
 
 import {
-	BaseWebPlugin, PageLayout, PageHeader, Control, ControlContext, notifyErrorHandler,
+	PageLayout, PageHeader, Control, ControlContext, notifyErrorHandler,
 } from "@clusterio/web_ui";
 //%if multi_context // Messages requires multi context
 
@@ -21,16 +21,26 @@ import {
 	ExampleSubscribableUpdate, ExampleSubscribableValue,
 //%endif
 //%if multi_context // Messages requires multi context
-} from "../messages";
+} from "../messages.js";
 //%endif
 
 import * as lib from "@clusterio/lib";
+//%if controller // Subscribing requires web content and the controller
+
+// Created when the plugin is loaded, before any page is rendered
+let exampleSubscriber;
+
+function useSubscribableData() {
+	const control = useContext(ControlContext);
+	const subscribe = useCallback((callback) => exampleSubscriber.subscribe(callback), [control]);
+	return useSyncExternalStore(subscribe, () => exampleSubscriber.getSnapshot());
+}
+//%endif
 
 function MyTemplatePage() {
 	let control = useContext(ControlContext);
 //%if controller // Subscribing requires web content and the controller
-	const plugin = control.plugins.get("__plugin_name__");
-	const [subscribableData, synced] = plugin.useSubscribableData();
+	const [subscribableData, synced] = useSubscribableData();
 //%endif
 
 	return <PageLayout nav={[{ name: "__plugin_name__" }]}>
@@ -41,53 +51,39 @@ function MyTemplatePage() {
 	</PageLayout>;
 }
 
-export class WebPlugin extends BaseWebPlugin {
+export default async function loadWebPlugin(context) {
+	const { control, logger, plugin } = context;
 //%if controller // Subscribing requires web content and the controller
-	subscribableData = new lib.EventSubscriber(ExampleSubscribableUpdate, this.control);
-
+	exampleSubscriber = new lib.MapSubscriber(ExampleSubscribableUpdate, control);
 //%endif
-	async init() {
-		this.pages = [
-			{
-				path: "/__plugin_name__",
-				sidebarName: "__plugin_name__",
-				// This permission is client side only, so it must match the permission string of a resource request to be secure
-				// An undefined value means that the page will always be visible
+
+	control.hooks.pages.attach(plugin.name, () => [
+		{
+			path: "/__plugin_name__",
+			sidebarName: "__plugin_name__",
+			// This permission is client side only, so it must match the permission string of a resource request to be secure
+			// An undefined value means that the page will always be visible
 //%if controller // Subscribing requires web content and the controller
-				permission: "__plugin_name__.example.permission.subscribe",
+			permission: "__plugin_name__.example.permission.subscribe",
 //%endif
 //%if !controller
-				permission: "__plugin_name__.example.permission.view",
+			permission: "__plugin_name__.page.view",
 //%endif
-				content: <MyTemplatePage/>,
-			},
-		];
+			content: <MyTemplatePage/>,
+		},
+	]);
 //%if multi_context
 
-		this.control.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
-		this.control.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
-//%endif
-	}
-//%if controller// Subscribing requires web content and the controller
+	control.handle(PluginExampleEvent, async (event) => {
+		logger.info(JSON.stringify(event));
+	});
 
-	useSubscribableData() {
-		const control = useContext(ControlContext);
-		const subscribe = useCallback((callback) => this.subscribableData.subscribe(callback), [control]);
-		return useSyncExternalStore(subscribe, () => this.subscribableData.getSnapshot());
-	}
-//%endif
-//%if multi_context
-
-	async handlePluginExampleEvent(event) {
-		this.logger.info(JSON.stringify(event));
-	}
-
-	async handlePluginExampleRequest(request) {
-		this.logger.info(JSON.stringify(request));
+	control.handle(PluginExampleRequest, async (request) => {
+		logger.info(JSON.stringify(request));
 		return {
 			myResponseString: request.myString,
 			myResponseNumbers: request.myNumberArray,
 		};
-	}
+	});
 //%endif
 }

packages/create/templates/plugin-ts/controller.ts

@@ -1,5 +1,5 @@
 import * as lib from "@clusterio/lib";
-import { BaseControllerPlugin, InstanceInfo } from "@clusterio/controller";
+import type { ControllerPluginContext, InstanceRecord } from "@clusterio/controller";
 //%if multi_context // Messages requires multi context
 
 import {
@@ -9,72 +9,61 @@ import {
 	ExampleSubscribableUpdate, ExampleSubscribableValue,
 //%endif
 //%if multi_context // Messages requires multi context
-} from "./messages";
+} from "./messages.js";
 //%endif
 
-export class ControllerPlugin extends BaseControllerPlugin {
+export default async function loadControllerPlugin(context: ControllerPluginContext) {
+	const { controller, logger, plugin } = context;
 //%if controller & web // Subscribing requires web content and the controller
-	exampleDatabase!: Map<string, ExampleSubscribableValue>;
-	storageDirty = false;
-
-//%endif
-//%if multi_context // Subscribing requires multi context
-	async init() {
-		this.controller.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
-		this.controller.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
-//%endif
-//%if controller & web // Subscribing requires web content and the controller
-		this.controller.subscriptions.handle(ExampleSubscribableUpdate, this.handleExampleSubscription.bind(this));
-		// If needed, replace with loading from database file such as lib.Datastore
-		this.exampleDatabase = new Map([["foo", new ExampleSubscribableValue("foo", 0, false)]]);
-//%endif
-//%if multi_context // Subscribing requires multi context
-	}
+	// If needed, replace with loading from database file such as lib.Datastore
+	const exampleDatabase = new Map([["foo", new ExampleSubscribableValue("foo", 0, false)]]);
 //%endif
+//%if multi_context // Messages requires multi context
 
-	async onControllerConfigFieldChanged(field: string, curr: unknown, prev: unknown) {
-		this.logger.info(`controller::onControllerConfigFieldChanged ${field}`);
-	}
-//%if instance
+	controller.handle(PluginExampleEvent, async (event: PluginExampleEvent) => {
+		logger.info(JSON.stringify(event));
+	});
 
-	async onInstanceConfigFieldChanged(instance: InstanceInfo, field: string, curr: unknown, prev: unknown) {
-		this.logger.info(`controller::onInstanceConfigFieldChanged ${instance.id} ${field}`);
-	}
-//%endif
-
-	async onSaveData() {
-		this.logger.info("controller::onSaveData");
-	}
-
-	async onShutdown() {
-		this.logger.info("controller::onShutdown");
-	}
-
-	async onPlayerEvent(instance: InstanceInfo, event: lib.PlayerEvent) {
-		this.logger.info(`controller::onPlayerEvent ${instance.id} ${JSON.stringify(event)}`);
-	}
-//%if multi_context
-
-	async handlePluginExampleEvent(event: PluginExampleEvent) {
-		this.logger.info(JSON.stringify(event));
-	}
-
-	async handlePluginExampleRequest(request: PluginExampleRequest) {
-		this.logger.info(JSON.stringify(request));
+	controller.handle(PluginExampleRequest, async (request: PluginExampleRequest) => {
+		logger.info(JSON.stringify(request));
 		return {
 			myResponseString: request.myString,
 			myResponseNumbers: request.myNumberArray,
 		};
-	}
+	});
 //%endif
 //%if controller & web // Subscribing requires web content and the controller
 
-	async handleExampleSubscription(request: lib.SubscriptionRequest) {
-		this.logger.info(JSON.stringify(request));
-		const values = [...this.exampleDatabase.values()].filter(
+	controller.subscriptions.handle(ExampleSubscribableUpdate, async (request: lib.SubscriptionRequest) => {
+		logger.info(JSON.stringify(request));
+		const values = [...exampleDatabase.values()].filter(
 			value => value.updatedAtMs > request.lastRequestTimeMs,
 		);
 		return values.length ? new ExampleSubscribableUpdate(values) : null;
-	}
+	});
 //%endif
+
+	controller.hooks.controllerConfigFieldChanged.attach(plugin.name, async (field, curr, prev) => {
+		logger.info(`controller::controllerConfigFieldChanged ${field}`);
+	});
+//%if instance
+
+	controller.hooks.instanceConfigFieldChanged.attach(
+		plugin.name, async (instance: InstanceRecord, field, curr, prev) => {
+			logger.info(`controller::instanceConfigFieldChanged ${instance.id} ${field}`);
+		}
+	);
+//%endif
+
+	controller.hooks.save.attach(plugin.name, async () => {
+		logger.info("controller::save");
+	});
+
+	controller.hooks.shutdown.attach(plugin.name, async () => {
+		logger.info("controller::shutdown");
+	});
+
+	controller.hooks.playerEvent.attach(plugin.name, async (instance: InstanceRecord, event: lib.PlayerEvent) => {
+		logger.info(`controller::playerEvent ${instance.id} ${JSON.stringify(event)}`);
+	});
 }

packages/create/templates/plugin-ts/ctl.ts

@@ -1,7 +1,7 @@
-import { BaseCtlPlugin, type Control } from "@clusterio/ctl";
+import type { Ctl, CtlPluginContext } from "@clusterio/ctl";
 import { CommandTree, Command } from "@clusterio/lib";
 //%// We do not check for multi context here because it doesn't make sense to have a ctl without messages
-import { PluginExampleEvent, PluginExampleRequest } from "./messages";
+import { PluginExampleEvent, PluginExampleRequest } from "./messages.js";
 /* eslint-disable no-console */
 
 const pluginCommands = new CommandTree({
@@ -12,16 +12,16 @@ pluginCommands.add(new Command({
 	definition: ["my-command <foo>", "My command description that I really should change", (yargs) => {
 		yargs.positional("foo", { describe: "foo is foo!", type: "string" });
 	}],
-	handler: async function(args: { foo: string }, control: Control) {
-		const response = await control.sendTo("controller", new PluginExampleRequest(args.foo, [1, 2, 3]));
+	handler: async function(args: { foo: string }, ctl: Ctl) {
+		const response = await ctl.sendTo("controller", new PluginExampleRequest(args.foo, [1, 2, 3]));
 		console.log(response);
 		console.log(args);
 	},
 }));
 
 /* eslint-enable no-console */
-export class CtlPlugin extends BaseCtlPlugin {
-	async addCommands(rootCommand: CommandTree) {
+export default async function loadCtlPlugin(context: CtlPluginContext) {
+	context.hooks.addCommands.attach(context.plugin.name, async (rootCommand) => {
 		rootCommand.add(pluginCommands);
-	}
+	});
 }

packages/create/templates/plugin-ts/host.ts

@@ -1,36 +1,30 @@
-import * as lib from "@clusterio/lib";
-import { BaseHostPlugin } from "@clusterio/host";
+import type { HostPluginContext } from "@clusterio/host";
 //%if multi_context
-import { PluginExampleEvent, PluginExampleRequest } from "./messages";
+import { PluginExampleEvent, PluginExampleRequest } from "./messages.js";
 //%endif
 
-export class HostPlugin extends BaseHostPlugin {
-//%if multi_context
-	async init() {
-		this.host.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
-		this.host.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
-	}
-//%endif
-
-	async onHostConfigFieldChanged(field: string, curr: unknown, prev: unknown) {
-		this.logger.info(`host::onInstanceConfigFieldChanged ${field}`);
-	}
-
-	async onShutdown() {
-		this.logger.info("host::onShutdown");
-	}
+export default async function loadHostPlugin(context: HostPluginContext) {
+	const { host, logger, plugin } = context;
 //%if multi_context
 
-	async handlePluginExampleEvent(event: PluginExampleEvent) {
-		this.logger.info(JSON.stringify(event));
-	}
+	host.handle(PluginExampleEvent, async (event: PluginExampleEvent) => {
+		logger.info(JSON.stringify(event));
+	});
 
-	async handlePluginExampleRequest(request: PluginExampleRequest) {
-		this.logger.info(JSON.stringify(request));
+	host.handle(PluginExampleRequest, async (request: PluginExampleRequest) => {
+		logger.info(JSON.stringify(request));
 		return {
 			myResponseString: request.myString,
 			myResponseNumbers: request.myNumberArray,
 		};
-	}
+	});
 //%endif
+
+	host.hooks.hostConfigFieldChanged.attach(plugin.name, async (field, curr, prev) => {
+		logger.info(`host::hostConfigFieldChanged ${field}`);
+	});
+
+	host.hooks.shutdown.attach(plugin.name, async () => {
+		logger.info("host::shutdown");
+	});
 }

packages/create/templates/plugin-ts/index.ts

@@ -1,40 +1,8 @@
 import * as lib from "@clusterio/lib";
 //%if multi_context
-import * as Messages from "./messages";
-
-lib.definePermission({
-	name: "__plugin_name__.example.permission.event",
-	title: "Example permission event",
-	description: "Example Description. Event. Change me in index.ts",
-	grantByDefault: true,
-});
-
-lib.definePermission({
-	name: "__plugin_name__.example.permission.request",
-	title: "Example permission request",
-	description: "Example Description. Request. Change me in index.ts",
-	grantByDefault: true,
-});
+import * as Messages from "./messages.js";
 //%endif
-//%if controller & web // Subscribing requires web content and the controller
-
-lib.definePermission({
-	name: "__plugin_name__.example.permission.subscribe",
-	title: "Example permission subscribe",
-	description: "Example Description. Subscribe. Change me in index.ts",
-	grantByDefault: true,
-});
-//%endif
-//%if web
-
-lib.definePermission({
-	name: "__plugin_name__.page.view",
-	title: "Example page view permission",
-	description: "Example Description. View. Change me in index.ts",
-	grantByDefault: true,
-});
-//%endif
-//%if config
+//%if config | multi_context | web
 
 declare module "@clusterio/lib" {
 //%endif
@@ -54,11 +22,27 @@ declare module "@clusterio/lib" {
 	}
 //%endif
 //%if ctl & config
-	export interface ControlConfigFields {
-		"__plugin_name__.myControlField": string;
+	export interface CtlConfigFields {
+		"__plugin_name__.myCtlField": string;
 	}
 //%endif
-//%if config
+//%if multi_context | web
+	export interface Permissions {
+//%endif
+//%if multi_context
+		"__plugin_name__.example.permission.event": never;
+		"__plugin_name__.example.permission.request": never;
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+		"__plugin_name__.example.permission.subscribe": never;
+//%endif
+//%if web
+		"__plugin_name__.page.view": never;
+//%endif
+//%if multi_context | web
+	}
+//%endif
+//%if config | multi_context | web
 }
 //%endif
 
@@ -71,7 +55,7 @@ export const plugin: lib.PluginDeclaration = {
 
 //%endif
 //%if controller
-	controllerEntrypoint: "./dist/node/controller",
+	controllerEntrypoint: "./dist/node/controller.js",
 //%endif
 //%if controller & config
 	controllerConfigFields: {
@@ -87,7 +71,7 @@ export const plugin: lib.PluginDeclaration = {
 
 //%endif
 //%if host
-	hostEntrypoint: "./dist/node/host",
+	hostEntrypoint: "./dist/node/host.js",
 //%endif
 //%if host & config
 	hostConfigFields: {
@@ -103,7 +87,7 @@ export const plugin: lib.PluginDeclaration = {
 
 //%endif
 //%if instance | module // Modules load an empty instance plugin
-	instanceEntrypoint: "./dist/node/instance",
+	instanceEntrypoint: "./dist/node/instance.js",
 //%endif
 //%if instance & config
 	instanceConfigFields: {
@@ -119,12 +103,12 @@ export const plugin: lib.PluginDeclaration = {
 
 //%endif
 //%if ctl
-	ctlEntrypoint: "./dist/node/ctl",
+	ctlEntrypoint: "./dist/node/ctl.js",
 //%endif
 //%if ctl & config
-	controlConfigFields: {
-		"__plugin_name__.myControlField": {
-			title: "My Control Field",
+	ctlConfigFields: {
+		"__plugin_name__.myCtlField": {
+			title: "My Ctl Field",
 			description: "This should be removed from index.js",
 			type: "string",
 			initialValue: "Remove Me",
@@ -143,6 +127,43 @@ export const plugin: lib.PluginDeclaration = {
 //%if multi_context // Subscribing requires multi context
 	],
 //%endif
+//%if multi_context | web
+
+	permissions: [
+//%endif
+//%if multi_context
+		{
+			name: "__plugin_name__.example.permission.event",
+			title: "Example permission event",
+			description: "Example Description. Event. Change me in index.ts",
+			grantByDefault: true,
+		},
+		{
+			name: "__plugin_name__.example.permission.request",
+			title: "Example permission request",
+			description: "Example Description. Request. Change me in index.ts",
+			grantByDefault: true,
+		},
+//%endif
+//%if controller & web // Subscribing requires web content and the controller
+		{
+			name: "__plugin_name__.example.permission.subscribe",
+			title: "Example permission subscribe",
+			description: "Example Description. Subscribe. Change me in index.ts",
+			grantByDefault: true,
+		},
+//%endif
+//%if web
+		{
+			name: "__plugin_name__.page.view",
+			title: "Example page view permission",
+			description: "Example Description. View. Change me in index.ts",
+			grantByDefault: true,
+		},
+//%endif
+//%if multi_context | web
+	],
+//%endif
 //%if web // Web content template has an example route which is the plugin name
 
 	webEntrypoint: "./web",

packages/create/templates/plugin-ts/instance.ts

@@ -1,76 +1,64 @@
 import * as lib from "@clusterio/lib";
-import { BaseInstancePlugin } from "@clusterio/host";
+import type { InstancePluginContext } from "@clusterio/host";
 //%if multi_context
-import { PluginExampleEvent, PluginExampleRequest } from "./messages";
+import { PluginExampleEvent, PluginExampleRequest } from "./messages.js";
 //%endif
 //%if module
 
-type PuginExampleIPC = {
+type PluginExampleIPC = {
 	tick: number,
 	player_name: string,
 };
 //%endif
 
-export class InstancePlugin extends BaseInstancePlugin {
-//%if multi_context | module
-	async init() {
-//%endif
-//%if multi_context
-		this.instance.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
-		this.instance.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
-//%endif
-//%if module
-		this.instance.server.handle("__plugin_name__-plugin_example_ipc", this.handlePluginExampleIPC.bind(this));
-//%endif
-//%if multi_context | module
-	}
-//%endif
-
-	async onInstanceConfigFieldChanged(field: string, curr: unknown, prev: unknown) {
-		this.logger.info(`instance::onInstanceConfigFieldChanged ${field}`);
-	}
-
-	async onStart() {
-		// Called once rcon becomes available
-		this.logger.info("instance::onStart");
-	}
-
-	async onStop() {
-		// Called during normal exits before rcon becomes unavailable
-		this.logger.info("instance::onStop");
-	}
-
-	onExit() {
-		// Called during all exits, including crashes and init failures, rcon is not available
-		this.logger.info("instance::onExit");
-	}
-
-	async onPlayerEvent(event: lib.PlayerEvent) {
-		this.logger.info(`onPlayerEvent::onPlayerEvent ${JSON.stringify(event)}`);
-//%if module
-		if (this.instance.status === "running") {
-			await this.sendRcon("/sc __plugin_name__.foo()");
-		}
-//%endif
-	}
+export default async function loadInstancePlugin(context: InstancePluginContext) {
+	const { instance, logger, plugin } = context;
 //%if multi_context
 
-	async handlePluginExampleEvent(event: PluginExampleEvent) {
-		this.logger.info(JSON.stringify(event));
-	}
+	instance.handle(PluginExampleEvent, async (event: PluginExampleEvent) => {
+		logger.info(JSON.stringify(event));
+	});
 
-	async handlePluginExampleRequest(request: PluginExampleRequest) {
-		this.logger.info(JSON.stringify(request));
+	instance.handle(PluginExampleRequest, async (request: PluginExampleRequest) => {
+		logger.info(JSON.stringify(request));
 		return {
 			myResponseString: request.myString,
 			myResponseNumbers: request.myNumberArray,
 		};
-	}
+	});
 //%endif
 //%if module
 
-	async handlePluginExampleIPC(event: PuginExampleIPC) {
-		this.logger.info(JSON.stringify(event));
-	}
+	instance.server.handle("__plugin_name__-plugin_example_ipc", async (event: PluginExampleIPC) => {
+		logger.info(JSON.stringify(event));
+	});
 //%endif
+
+	instance.hooks.instanceConfigFieldChanged.attach(plugin.name, async (field, curr, prev) => {
+		logger.info(`instance::instanceConfigFieldChanged ${field}`);
+	});
+
+	instance.hooks.start.attach(plugin.name, async () => {
+		// Called once rcon becomes available
+		logger.info("instance::start");
+	});
+
+	instance.hooks.stop.attach(plugin.name, async () => {
+		// Called during normal exits before rcon becomes unavailable
+		logger.info("instance::stop");
+	});
+
+	instance.hooks.exit.attach(plugin.name, () => {
+		// Called during all exits, including crashes and init failures, rcon is not available
+		logger.info("instance::exit");
+	});
+
+	instance.hooks.playerEvent.attach(plugin.name, async (event: lib.PlayerEvent) => {
+		logger.info(`instance::playerEvent ${JSON.stringify(event)}`);
+//%if module
+		if (instance.status === "running") {
+			await instance.sendRcon("/sc __plugin_name__.foo()", false, plugin.name);
+		}
+//%endif
+	});
 }

packages/create/templates/plugin-ts/instance_empty.ts

@@ -1,7 +1,5 @@
-import * as lib from "@clusterio/lib";
-import { BaseInstancePlugin } from "@clusterio/host";
+import type { InstancePluginContext } from "@clusterio/host";
 
-export class InstancePlugin extends BaseInstancePlugin {
-	// This class is empty because an instance plugin must be defined for a module to be injected
-	// This requirement may change in the future to allow for standalone modules
-}
+// This entrypoint is empty because an instance entrypoint must be defined for a module to be injected
+// This requirement may change in the future to allow for standalone modules
+export default async function loadInstancePlugin(context: InstancePluginContext) { }

packages/create/templates/plugin-ts/tsconfig.browser.json

@@ -9,5 +9,5 @@
 		"noEmitOnError": true,
 		"outDir": "${configDir}/dist/browser",
 	},
-	"include": [ "web/**/*.tsx", "web/**/*.ts", "messages.ts", "package.json" ],
+	"include": [ "web/**/*.tsx", "web/**/*.ts", "index.ts", "messages.ts", "package.json" ],
 }

packages/create/templates/plugin-ts/tsconfig.node.json

@@ -2,6 +2,7 @@
 	"extends": "./tsconfig.base.json",
 	"compilerOptions": {
 		"lib": ["es2023"],
+		"types": ["node"],
 		"module": "node16",
 		"moduleResolution": "node16",
 		"target": "es2022",

packages/create/templates/plugin-ts/web/plugin.tsx

@@ -10,7 +10,8 @@ import React, {
 // } from "antd";
 
 import {
-	BaseWebPlugin, PageLayout, PageHeader, Control, ControlContext, notifyErrorHandler,
+	PageLayout, PageHeader, Control, ControlContext, notifyErrorHandler,
+	type WebPluginContext,
 } from "@clusterio/web_ui";
 //%if multi_context // Messages requires multi context
 
@@ -21,16 +22,26 @@ import {
 	ExampleSubscribableUpdate, ExampleSubscribableValue,
 //%endif
 //%if multi_context // Messages requires multi context
-} from "../messages";
+} from "../messages.js";
 //%endif
 
 import * as lib from "@clusterio/lib";
+//%if controller // Subscribing requires web content and the controller
+
+// Created when the plugin is loaded, before any page is rendered
+let exampleSubscriber: lib.MapSubscriber<ExampleSubscribableUpdate>;
+
+function useSubscribableData() {
+	const control = useContext(ControlContext);
+	const subscribe = useCallback((callback: () => void) => exampleSubscriber.subscribe(callback), [control]);
+	return useSyncExternalStore(subscribe, () => exampleSubscriber.getSnapshot());
+}
+//%endif
 
 function MyTemplatePage() {
 	const control = useContext(ControlContext);
 //%if controller // Subscribing requires web content and the controller
-	const plugin = control.plugins.get("__plugin_name__") as WebPlugin;
-	const [subscribableData, synced] = plugin.useSubscribableData();
+	const [subscribableData, synced] = useSubscribableData();
 //%endif
 
 	return <PageLayout nav={[{ name: "__plugin_name__" }]}>
@@ -41,53 +52,39 @@ function MyTemplatePage() {
 	</PageLayout>;
 }
 
-export class WebPlugin extends BaseWebPlugin {
+export default async function loadWebPlugin(context: WebPluginContext) {
+	const { control, logger, plugin } = context;
 //%if controller // Subscribing requires web content and the controller
-	subscribableData = new lib.EventSubscriber(ExampleSubscribableUpdate, this.control);
-
+	exampleSubscriber = new lib.MapSubscriber(ExampleSubscribableUpdate, control);
 //%endif
-	async init() {
-		this.pages = [
-			{
-				path: "/__plugin_name__",
-				sidebarName: "__plugin_name__",
-				// This permission is client side only, so it must match the permission string of a resource request to be secure
-				// An undefined value means that the page will always be visible
+
+	control.hooks.pages.attach(plugin.name, () => [
+		{
+			path: "/__plugin_name__",
+			sidebarName: "__plugin_name__",
+			// This permission is client side only, so it must match the permission string of a resource request to be secure
+			// An undefined value means that the page will always be visible
 //%if controller // Subscribing requires web content and the controller
-				permission: "__plugin_name__.example.permission.subscribe",
+			permission: "__plugin_name__.example.permission.subscribe",
 //%endif
 //%if !controller
-				permission: "__plugin_name__.example.permission.view",
+			permission: "__plugin_name__.page.view",
 //%endif
-				content: <MyTemplatePage/>,
-			},
-		];
+			content: <MyTemplatePage/>,
+		},
+	]);
 //%if multi_context
 
-		this.control.handle(PluginExampleEvent, this.handlePluginExampleEvent.bind(this));
-		this.control.handle(PluginExampleRequest, this.handlePluginExampleRequest.bind(this));
-//%endif
-	}
-//%if controller // Subscribing requires web content and the controller
+	control.handle(PluginExampleEvent, async (event: PluginExampleEvent) => {
+		logger.info(JSON.stringify(event));
+	});
 
-	useSubscribableData() {
-		const control = useContext(ControlContext);
-		const subscribe = useCallback((callback: () => void) => this.subscribableData.subscribe(callback), [control]);
-		return useSyncExternalStore(subscribe, () => this.subscribableData.getSnapshot());
-	}
-//%endif
-//%if multi_context
-
-	async handlePluginExampleEvent(event: PluginExampleEvent) {
-		this.logger.info(JSON.stringify(event));
-	}
-
-	async handlePluginExampleRequest(request: PluginExampleRequest) {
-		this.logger.info(JSON.stringify(request));
+	control.handle(PluginExampleRequest, async (request: PluginExampleRequest) => {
+		logger.info(JSON.stringify(request));
 		return {
 			myResponseString: request.myString,
 			myResponseNumbers: request.myNumberArray,
 		};
-	}
+	});
 //%endif
 }

packages/ctl/.npmignore

@@ -0,0 +1 @@
+# Without an .npmignore pnpm packs using the repository .gitignore, which leaves out dist/

packages/ctl/README.md

@@ -17,9 +17,12 @@ Common options:
    See the `plugin` command for managing this list.
 
  * `--config <file>` JSON file to use for storing configuration for ctl.
-   Defaults to `config-control.json` and will be created if it does not exist.
+   Defaults to `config-ctl.json` and is required for operation.
    See the `config` command for inspecting and modifying the configuration.
 
+ * `--create-config` If the config file is missing, create a new one and carry on instead of exiting with an error.
+   Alternative to the `config create` command.
+
 
 ### `plugin <command>`
 
@@ -27,17 +30,28 @@ Configure plugins available to be loaded by ctl.
 The available plugins will be automatically loaded and the commands they provide will be added to the ctl utility.
 
 
+#### `plugin install <package>`
+
+Install a plugin from npm and add it to the plugin list.
+The package is passed to `npm install --save` so anything npm accepts works, including a version like `@clusterio/plugin-subspace_storage@2.0.0`.
+This command refuses to run outside the directory Clusterio was installed in, as the plugin has to end up in that directory's node_modules to be found.
+
+For example, installing the Subspace Storage plugin:
+
+    npx clusterioctl plugin install @clusterio/plugin-subspace_storage
+
+Since the `plugin-list.json` is shared between controller, host and ctl you usually only need to do this once per machine.
+
+
 #### `plugin add <path>`
 
 Add plugin either by require path or relative/absolute path to the plugin directory.
 A relative path must start with ./ or ../ (or .\ and ..\ on Windows) otherwise it will be assumed to be a require path for an installed package in node_modules.
+This is mainly useful for plugins under development, packages published on npm are better installed with `plugin install`.
 
-For example, installing the Subspace Storage plugin:
+For example, adding a plugin checked out in the external_plugins directory:
 
-    npm install @clusterio/plugin-subspace_storage
-    npx clusterioctl plugin add @clusterio/plugin-subspace_storage
-
-Since the `plugin-list.json` is shared between controller, host and ctl you usually only need to do this once per machine.
+    npx clusterioctl plugin add ./external_plugins/my_plugin
 
 
 #### `plugin remove <name>`
@@ -59,13 +73,20 @@ Since the `plugin-list.json` is shared between controller, host and ctl you usua
 Lists the plugins set up to be available by name followed by path.
 
 
-### `config-control`
+### `config`
 
 Manage the ctl configuration.
 This allows setting the url and token to the controller to manage.
 
 
-#### `config-control set <config-entry> [value]`
+#### `config create`
+
+Create a new config file with the default options inserted into if it doesn't already exist.
+
+See also the `--create-config` option.
+
+
+#### `config set <config-entry> [value]`
 
 Set a config entry to the given value.
 If value is not provided the entry is set to null.
@@ -74,12 +95,12 @@ If the config entry is of type object the value must be a valid JSON serializati
 See docs/configuration.md in the main repositiory for the available configuration.
 
 
-#### `config-control show <config-entry>`
+#### `config show <config-entry>`
 
 Shows the value for a single config entry.
 
 
-#### `config-control list`
+#### `config list`
 
 Lists up all configuration entries with their currently configured values.
 

packages/ctl/ctl.ts

@@ -4,31 +4,30 @@
  * Command line interface for controlling a Clusterio cluster
  * @module ctl/ctl
  */
-import fs from "fs-extra";
+import fs from "node:fs/promises";
 import yargs, { type Argv } from "yargs";
 import path from "path";
-import { version } from "./package.json";
-import setBlocking from "set-blocking";
+import packageConfig from "@clusterio/ctl/package.json" with { type: "json" };
 import { strict as assert } from "assert";
 
 // Reduce startup time by lazy compiling schemas.
-(global as any).lazySchemaCompilation = true;
+import "./src/set_lazy_schema_compliation.js";
 import * as lib from "@clusterio/lib";
 import { ConsoleTransport, levels, logger } from "@clusterio/lib";
 
-import * as commands from "./src/commands";
-import BaseCtlPlugin from "./src/BaseCtlPlugin";
+import * as commands from "./src/commands.js";
+import { BaseCtlPlugin, CtlHooks } from "./src/BaseCtlPlugin.js";
 
 
 /**
  * Connector for control connection to controller
  * @private
  */
-class ControlConnector extends lib.WebSocketClientConnector {
+class CtlConnector extends lib.WebSocketClientConnector {
 	private _token: string;
 
-	constructor(url: string, maxReconnectDelay: number, tlsCa: string | undefined, token: string) {
-		super(url, maxReconnectDelay, tlsCa);
+	constructor(url: string, maxReconnectDelay: number, token: string) {
+		super(url, maxReconnectDelay);
 		this._token = token;
 	}
 
@@ -38,7 +37,7 @@ class ControlConnector extends lib.WebSocketClientConnector {
 			new lib.MessageRegisterControl(
 				new lib.RegisterControlData(
 					this._token,
-					version,
+					packageConfig.version,
 				)
 			)
 		);
@@ -46,31 +45,23 @@ class ControlConnector extends lib.WebSocketClientConnector {
 }
 
 /**
- * Handles running the control
+ * Handles running ctl
  *
  * Connects to the controller over WebSocket and sends commands to it.
  * @static
  */
-export class Control extends lib.Link {
-	/** Control config used for connecting to the controller. */
-	config: lib.ControlConfig;
-	/** Certificate authority used to validate TLS connections to the controller. */
-	tlsCa?: string;
-	/** Mapping of plugin names to their instance for loaded plugins. */
-	plugins: Map<string, BaseCtlPlugin>;
+export class Ctl extends lib.Link {
+	/** Ctl config used for connecting to the controller. */
+	config: lib.CtlConfig;
 	/** Keep the control connection alive after the command completes. */
 	keepOpen = false;
 
 	constructor(
-		connector: ControlConnector,
-		controlConfig: lib.ControlConfig,
-		tlsCa: string | undefined,
-		ctlPlugins: Map<string, BaseCtlPlugin>
+		connector: CtlConnector,
+		ctlConfig: lib.CtlConfig,
 	) {
 		super(connector);
-		this.config = controlConfig;
-		this.tlsCa = tlsCa;
-		this.plugins = ctlPlugins;
+		this.config = ctlConfig;
 
 		this.handle(lib.LogMessageEvent, this.handleLogMessageEvent.bind(this));
 		this.handle(lib.DebugWsMessageEvent, this.handleDebugWsMessageEvent.bind(this));
@@ -101,7 +92,7 @@ export class Control extends lib.Link {
 
 	async shutdown() {
 		try {
-			await (this.connector as ControlConnector).disconnect();
+			await (this.connector as CtlConnector).disconnect();
 		} catch (err) {
 			if (!(err instanceof lib.SessionLost)) {
 				throw err;
@@ -110,27 +101,23 @@ export class Control extends lib.Link {
 	}
 }
 
-async function loadPlugins(pluginList: Map<string, string>) {
+async function loadPlugins(pluginList: Map<string, string>, hooks: CtlHooks) {
 	let pluginInfos = await lib.loadPluginInfos(pluginList);
 	lib.registerPluginMessages(pluginInfos);
+	lib.registerPluginPermissions(pluginInfos);
 	lib.addPluginConfigFields(pluginInfos);
 
-	let ctlPlugins = new Map<string, BaseCtlPlugin>();
+	const ctlPlugins = new Set<lib.PluginNodeEnvInfo>();
 	for (let pluginInfo of pluginInfos) {
 		if (!pluginInfo.ctlEntrypoint) {
 			continue;
 		}
 
-		let CtlPlugin = await lib.loadPluginClass(
-			pluginInfo.name,
-			path.posix.join(pluginInfo.requirePath, pluginInfo.ctlEntrypoint),
-			"CtlPlugin",
-			BaseCtlPlugin,
-		);
-		let ctlPlugin = new CtlPlugin(pluginInfo, logger);
-		ctlPlugins.set(pluginInfo.name, ctlPlugin);
-		await ctlPlugin.init();
+		const context = { hooks, logger, plugin: pluginInfo };
+		await lib.loadPlugin(pluginInfo, "ctl", context, "CtlPlugin", BaseCtlPlugin);
+		ctlPlugins.add(pluginInfo);
 	}
+
 	return ctlPlugins;
 }
 
@@ -141,19 +128,21 @@ interface CtlArguments {
 	logLevel: keyof typeof levels,
 	config: string,
 	pluginList: string,
+	bypassLockFile: boolean,
+	createConfig: boolean,
 }
 
 interface InitializeParameters {
 	args: CtlArguments;
 	shouldRun: boolean;
-	ctlPlugins?: Map<string, BaseCtlPlugin>;
+	ctlHooks: CtlHooks;
 	rootCommands?: lib.CommandTree;
-	controlConfig?: lib.ControlConfig;
+	ctlConfig?: lib.CtlConfig;
 }
 
 export async function initialize(
 	argv: string | string[],
-	ctlPlugins?: Map<string, BaseCtlPlugin>,
+	ctlHooks: CtlHooks = new CtlHooks(logger),
 	noLoggerTransport?: boolean,
 ): Promise<InitializeParameters> {
 	// Build a fresh, isolated yargs parser each time this function is called.
@@ -179,10 +168,16 @@ export async function initialize(
 		.option("config", {
 			nargs: 1,
 			describe: "config file to get credentails from",
-			default: "config-control.json",
+			default: "config-ctl.json",
 			defaultDescription: "auto",
 			type: "string",
 		})
+		.option("create-config", {
+			nargs: 0,
+			describe: "Create config file if it does not exist",
+			default: false,
+			type: "boolean",
+		})
 		.option("plugin-list", {
 			nargs: 1,
 			describe: "File containing list of plugins available with their install path",
@@ -191,7 +186,7 @@ export async function initialize(
 		})
 		.option("bypass-lock-file", { hidden: true, type: "boolean", nargs: 0, default: false })
 		.command("plugin", "Manage available plugins", lib.pluginCommand)
-		.command("control-config", "Manage Control config", lib.configCommand)
+		.command("config", "Manage ctl config", lib.configCommand)
 		.wrap(parser.terminalWidth())
 		.help(false) // Disable help to avoid triggering it on the first parse.
 	;
@@ -212,63 +207,47 @@ export async function initialize(
 		lib.handleUnhandledErrors();
 	}
 
-	// Discover and load plugins. This check exists to allow tests to inject plugins.
-	if (!ctlPlugins || args._[0] === "plugin") {
+	// Discover and load plugins. ctlHooks.size check exists to allow tests to inject plugins.
+	if (ctlHooks.addCommands.size === 0 || args._[0] === "plugin") {
 		logger.verbose(`Loading available plugins from ${args.pluginList}`);
 		const pluginList = await lib.loadPluginList(args.pluginList);
 
 		// If the command is plugin management we don't try to load plugins
 		if (args._[0] === "plugin") {
 			await lib.handlePluginCommand(args, pluginList, args.pluginList);
-			return { args, shouldRun: false };
+			return { args, ctlHooks, shouldRun: false };
 		}
 
 		logger.verbose("Loading Plugins");
-		ctlPlugins = await loadPlugins(pluginList);
+		await loadPlugins(pluginList, ctlHooks);
 	}
 
 	// Add all commands including from plugins and reparse with help and strict checking.
-	const rootCommands = await commands.registerCommands(ctlPlugins, parser);
+	const rootCommands = await commands.registerCommands(ctlHooks, parser);
 	args = parser
 		.help()
 		.strict()
 		.parse(argv) as CtlArguments
 	;
 
-	const controlConfigPath = args.config;
-	const controlConfigLockPath = `${controlConfigPath}.lock`;
-	if (args.bypassLockFile) {
-		await fs.unlink(controlConfigLockPath).catch(() => {}); // ignore error, file might not exist
-	}
-
-	let controlConfig;
-	const controlConfigLock = new lib.LockFile(controlConfigLockPath);
-	logger.verbose(`Loading config from ${controlConfigPath}`);
-	try {
-		controlConfig = await lib.ControlConfig.fromFile("control", controlConfigPath);
-
-	} catch (err: any) {
-		if (err.code === "ENOENT") {
-			logger.verbose("Config not found, initializing new config");
-			controlConfig = new lib.ControlConfig("control", undefined, controlConfigPath);
-
-		} else {
-			throw new lib.StartupError(`Failed to load ${args.config}: ${err.stack ?? err.message ?? err}`);
-		}
-	}
+	const [ctlConfig, ctlConfigLock] = await lib.loadConfigFromArgs(
+		args,
+		lib.CtlConfig,
+		"control",
+	);
 
 	if (args._.length === 0) {
 		parser.showHelp();
 		parser.exit(1, undefined as unknown as Error); // Type definition file is wrong.
 	}
 
-	// Handle the control-config command before trying to connect.
-	if (args._[0] === "control-config") {
-		await lib.handleConfigCommand(args, controlConfig, controlConfigLock);
-		return { args, controlConfig, ctlPlugins, rootCommands, shouldRun: false };
+	// Handle the config command before trying to connect.
+	if (args._[0] === "config") {
+		await lib.handleConfigCommand(args, ctlConfig, ctlConfigLock);
+		return { args, ctlConfig, ctlHooks, rootCommands, shouldRun: false };
 	}
 
-	return { args, controlConfig, ctlPlugins, rootCommands, shouldRun: true };
+	return { args, ctlConfig, ctlHooks, rootCommands, shouldRun: true };
 }
 
 export function selectTargetCommand(args: CtlArguments, rootCommands: lib.CommandTree): lib.Command {
@@ -281,38 +260,30 @@ export function selectTargetCommand(args: CtlArguments, rootCommands: lib.Comman
 	return targetCommand;
 }
 
-async function startControl() {
+async function startCtl() {
 	const {
 		args,
 		shouldRun,
-		ctlPlugins,
 		rootCommands,
-		controlConfig,
+		ctlConfig,
 	} = await initialize(process.argv.slice(2));
-	if (!shouldRun || !ctlPlugins || !rootCommands || !controlConfig) {
+	if (!shouldRun || !rootCommands || !ctlConfig) {
 		return;
 	}
 
-	if (!controlConfig.get("control.controller_url") || !controlConfig.get("control.controller_token")) {
+	if (!ctlConfig.get("ctl.controller_url") || !ctlConfig.get("ctl.controller_token")) {
 		logger.error("Missing URL and/or token to connect with.  See README.md for setting up access.");
 		process.exitCode = 1;
 		return;
 	}
 
-	let tlsCa: string | undefined;
-	let tlsCaPath = controlConfig.get("control.tls_ca");
-	if (tlsCaPath) {
-		tlsCa = await fs.readFile(tlsCaPath, "utf8");
-	}
-
-	let controlConnector = new ControlConnector(
-		controlConfig.get("control.controller_url")!,
-		controlConfig.get("control.max_reconnect_delay"),
-		tlsCa,
-		controlConfig.get("control.controller_token")!,
+	let controlConnector = new CtlConnector(
+		ctlConfig.get("ctl.controller_url")!,
+		ctlConfig.get("ctl.max_reconnect_delay"),
+		ctlConfig.get("ctl.controller_token")!,
 	);
 
-	let control = new Control(controlConnector, controlConfig, tlsCa, ctlPlugins);
+	let ctl = new Ctl(controlConnector, ctlConfig);
 	try {
 		await controlConnector.connect();
 	} catch (err) {
@@ -322,32 +293,26 @@ async function startControl() {
 		throw err;
 	}
 
-	process.on("SIGINT", () => {
-		logger.info("Caught interrupt signal, closing connection");
-		control.shutdown().catch(err => {
-			setBlocking(true);
-			logger.error(err.stack);
-
-			process.exit(1);
-		});
-	});
+	// Handle interrupts
+	process.on("SIGINT", lib.createShutdownGuard(logger, "interrupt", ctl.shutdown.bind(ctl)));
+	process.on("SIGTERM", lib.createShutdownGuard(logger, "termination", ctl.shutdown.bind(ctl)));
 
 	try {
 		const targetCommand = selectTargetCommand(args, rootCommands);
-		await targetCommand.run(args, control);
+		await targetCommand.run(args, ctl);
 
 	} catch (err) {
-		control.keepOpen = false;
+		ctl.keepOpen = false;
 		if (err instanceof lib.CommandError) {
 			logger.error(`Error running command: ${err.message}`);
 			process.exitCode = 1;
 
-		} else if (err instanceof lib.RequestError) {
-			if (err.stack) {
-				logger.error(`Error sending request:\n${err.stack}`);
-			} else {
-				logger.error(`Error sending request: ${err.message}`);
-			}
+		} else if (err instanceof lib.ClientError || err instanceof lib.UnavailableError) {
+			logger.error(`Error sending request: ${err.message}`);
+			process.exitCode = 1;
+
+		} else if (err instanceof lib.ServerError) {
+			logger.error(`Error sending request:\n${err.stack ?? err.message}`);
 			process.exitCode = 1;
 
 		} else {
@@ -355,31 +320,23 @@ async function startControl() {
 		}
 
 	} finally {
-		if (!control.keepOpen) {
-			await control.shutdown();
+		if (!ctl.keepOpen) {
+			await ctl.shutdown();
 		}
 	}
 }
 
 export function bootstrap() {
-	// eslint-disable-next-line no-console
-	console.warn(`
-+==========================================================+
-I WARNING:  This is the development branch for the 2.0     I
-I           version of clusterio.  Expect things to break. I
-+==========================================================+
-`
-	);
-	startControl().catch(err => {
+	startCtl().catch(err => {
 		if (err.errors) {
 			logger.fatal(JSON.stringify(err.errors, null, "\t"));
 		}
 		if (!(err instanceof lib.StartupError)) {
 			logger.fatal(`
-+------------------------------------------------------------+
-| Unexpected error occured while starting control, please    |
-| report it to https://github.com/clusterio/clusterio/issues |
-+------------------------------------------------------------+
++---------------------------------------------------------------+
+| Unexpected error occured while starting clussterioctl, please |
+| report it to https://github.com/clusterio/clusterio/issues    |
++---------------------------------------------------------------+
 ${err.stack}`
 			);
 		} else {
@@ -395,6 +352,6 @@ ${err.stack}`
 	});
 }
 
-if (module === require.main) {
+if (import.meta.main) {
 	bootstrap();
 }

packages/ctl/index.ts

@@ -1,7 +1,7 @@
-import { bootstrap } from "./ctl";
-export * from "./ctl";
-export { default as BaseCtlPlugin } from "./src/BaseCtlPlugin";
+import { bootstrap } from "./ctl.js";
+export * from "./ctl.js";
+export { BaseCtlPlugin, CtlHooks, type CtlPluginContext } from "./src/BaseCtlPlugin.js";
 
-if (module === require.main) {
+if (import.meta.main) {
 	bootstrap();
 }

packages/ctl/package.json

@@ -1,9 +1,28 @@
 {
 	"name": "@clusterio/ctl",
+	"version": "2.0.3",
 	"description": "Clusterio command line management tool",
-	"author": "Hornwitser",
+	"homepage": "https://github.com/clusterio/clusterio#readme",
+	"author": "Hornwitser <github@hornwitser.no>",
 	"license": "MIT",
-	"version": "2.0.0-alpha.22",
+
+	"keywords": [
+		"clusterio",
+		"factorio"
+	],
+
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/clusterio/clusterio"
+	},
+	"bugs": {
+		"url": "https://github.com/clusterio/clusterio/issues"
+	},
+	"publishConfig": {
+		"access": "public"
+	},
+
+	"type": "module",
 	"main": "dist/node/index.js",
 	"scripts": {
 		"prepare": "tsc --build",
@@ -12,30 +31,19 @@
 	"bin": {
 		"clusterioctl": "./dist/node/ctl.js"
 	},
-	"keywords": [
-		"clusterio",
-		"factorio"
-	],
 	"engines": {
-		"node": ">=20"
+		"node": "^22.18.0 || >=24.2.0"
 	},
+
 	"dependencies": {
-		"@clusterio/lib": "workspace:*",
-		"set-blocking": "catalog:",
-		"fs-extra": "catalog:",
-		"winston": "catalog:",
-		"phin": "catalog:",
+		"@clusterio/lib": "workspace:^",
 		"as-table": "^1.0.55",
-		"yargs": "^17.7.2"
-	},
-	"publishConfig": {
-		"access": "public"
+		"winston": "catalog:",
+		"yargs": "catalog:"
 	},
 	"devDependencies": {
-		"@types/fs-extra": "catalog:",
 		"@types/node": "catalog:",
-		"@types/set-blocking": "catalog:",
-		"@types/yargs": "^17.0.33",
+		"@types/yargs": "catalog:",
 		"typescript": "catalog:"
 	}
 }

packages/ctl/src/BaseCtlPlugin.ts

@@ -1,38 +1,18 @@
-import type { CommandTree, Logger, PluginNodeEnvInfo } from "@clusterio/lib";
+import * as lib from "@clusterio/lib";
+
+export type CtlPluginContext = lib.PluginLoadContext<{
+	hooks: CtlHooks
+}>;
 
 /**
- * Base class for clusterioctl plugins
- *
- * Ctl plugins are subclasses of this class which get instantiated by
- * clusterioctl in order to extend its functionallity.  To be discovered the
- * class must be exported under the name `CtlPlugin` in the module
- * specified by the `ctlEntrypoint` in the plugin's `plugin` export.
+ * Collection of clusterioctl plugin hooks
  */
-export default class BaseCtlPlugin {
-	/**
-	 * Logger for this plugin
-	 *
-	 * Instance of winston Logger for sending log messages from this
-	 * plugin.  Supported methods and their corresponding log levels are
-	 * `error`, `warn`, `audit`, `info` and `verbose`.
-	 */
-	logger: Logger;
-
-	constructor(
-		/**
-		 * The plugin's own info module
-		 */
-		public info: PluginNodeEnvInfo,
-		logger: Logger,
-	) {
-		this.logger = logger.child({ plugin: this.info.name }) as unknown as Logger;
+export class CtlHooks extends lib.AsyncHookCollection {
+	constructor(logger: lib.Logger) {
+		super(logger);
+		this.addCommands = this.newHook();
 	}
 
-	/**
-	 * Called immediately after the class is instantiated
-	 */
-	async init() { }
-
 	/**
 	 * Called to add commands to the command line interface.
 	 *
@@ -43,5 +23,47 @@ export default class BaseCtlPlugin {
 	 * @param rootCommand -
 	 *     Root of the clusterioctl command tree.
 	 */
-	async addCommands(rootCommand: CommandTree) { }
+	readonly addCommands: lib.AsyncHook<[rootCommand: lib.CommandTree]>;
+}
+
+// eslint-disable-next-line @typescript-eslint/no-unsafe-declaration-merging
+export interface BaseCtlPlugin {
+	addCommands?(rootCommand: lib.CommandTree): Promise<void>;
+}
+
+/**
+ * Base class for clusterioctl plugins
+ *
+ * Ctl plugins are subclasses of this class which get instantiated by
+ * clusterioctl in order to extend its functionallity.  To be discovered the
+ * class must be exported under the name `CtlPlugin` in the module
+ * specified by the `ctlEntrypoint` in the plugin's `plugin` export.
+ */
+// eslint-disable-next-line @typescript-eslint/no-unsafe-declaration-merging
+export class BaseCtlPlugin {
+	constructor(
+		/**
+		 * The plugin's own info module
+		 */
+		public info: lib.PluginNodeEnvInfo,
+		public logger: lib.Logger,
+		private hooks: CtlHooks,
+	) {
+		if (this.addCommands) {
+			hooks.addCommands.attach(info.name, this.addCommands.bind(this));
+		}
+	}
+
+	static fromContext(context: CtlPluginContext) {
+		return new this(context.plugin, context.logger, context.hooks);
+	}
+
+	detachHooks() {
+		this.hooks.detachAll(this.info.name);
+	}
+
+	/**
+	 * Called immediately after the class is instantiated
+	 */
+	async init() {}
 }