Controller.bootstrap and Host.bootstrap returned constructor arguments
that the caller had to spread into new Controller/Host, and
DatastoreProvider.bootstrap did the same for datastores. They are
replaced by Controller.fromConfig, Host.fromConfig and
KeyValueDatastore/SubscribableDatastore.fromProvider, which load the
data and return the finished instance.
Closes#1126
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Factorio 2.1.18 removed PollutionSettings::max_pollution_to_restore_trees,
but readPollution still read it for every version, so every map setting
after it was read 9 bytes late: enemy_attack_pollution_consumption_modifier
came out as garbage, the enemy_evolution factors shifted by one field and
enemy_expansion.enabled and both expansion distances came out null.
Read the field only for strings older than 2.1.18. Add modified_v2_1_17
and modified_v2_1_18 fixtures generated with headless 2.1.17 and 2.1.18
from the modified 2.1 settings (base game only), unit tests asserting
their full decoded output, and use the 2.1.18 string for the
load-scenario integration test on 2.1.18 and later.
Fixes#1131
Co-authored-by: ColumbusLabs <287001685+ColumbusLabs@users.noreply.github.com>
Co-authored-by: Cooldude2606 <25043174+Cooldude2606@users.noreply.github.com>
Node 26.12.1 (CVE-2026-105481) makes the http agent check a kept-alive
socket for pending data before reusing it. The queued request now sees
the server's EOF, opens a new connection to the closed server and gets
ECONNREFUSED instead of ECONNRESET. Either way the request is dropped.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* Wait for player list replication in integration tests
* Select available RCON ports before starting Factorio
* Document zero as automatic RCON port allocation
* Address review wording and test organization
* Restrict port collision hardening to integration fixtures
The send buffer limit in controller.max_send_buffer_size is set in MiB, but
buffered messages were measured with String.length, which counts UTF-16 code
units. Messages with non-ASCII text could go over the configured size in bytes
before the session was ended.
Measure each serialised message with Buffer.byteLength when it is buffered,
keep that size with the entry, and subtract the same size when it is
acknowledged. The web UI build already provides Buffer through the buffer
polyfill.
Fixes#1108
Co-authored-by: ColumbusLabs <287001685+ColumbusLabs@users.noreply.github.com>
Browsers have no setImmediate. The web bundle only had one because jszip
depended on the setimmediate package, which installs it as a global.
Since jszip was replaced in #1011 every component using a subscription
threw on unmount, breaking page changes in the web interface.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Replace jszip with yauzl and yazl
jszip loads a whole archive into memory to read it and buffers the
output when writing. Saves and mods can be several hundred megabytes,
so read zips with yauzl, which only reads the central directory and
streams entries on demand, and write them with yazl, which streams the
output.
lib gains a ZipArchive wrapper around yauzl with the lookup helpers the
callers need, findRoot() now takes it instead of a JSZip. Saves are
patched by streaming every kept entry into a new zip, mod info.json is
read straight from the file, exports are streamed to the controller and
Factorio zip downloads go through a temp file instead of a buffer.
Patching now inflates and deflates each entry again where jszip reused
the compressed data, on a 336 MB synthetic save that is 7 s instead of
0.7 s, with peak memory going from 416 MB to 151 MB.
Closes#1002
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
* Copy save entries without recompressing them
yazl inflates and deflates every entry it is given, so patching a save
took ten times longer than with jszip, which reused the compressed
data. Add a ZipWriter to lib that streams entries out as they are
added and copies entries from a ZipArchive byte for byte, with ZIP64
structures when sizes or offsets need them, and use it in patch().
On a 336 MB synthetic save patching now takes 0.4 s at 143 MB peak RSS
against 0.75 s at 417 MB with jszip. Factorio loads the result.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
* Handle save write errors before the patch loop awaits them
A write error on the temporary save, such as a full disk, rejected the
pipeline promise while addEntry() or addBuffer() was still pending. Nothing
was listening yet, so the host's unhandledRejection handler exited the
process instead of failing the instance start.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Keep the export zip cache local to each export
The cache was module level, so when two instances on one host exported at
once, the first to finish closed archives the other was still reading.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Start writing zips before adding files from disk
yazl reads files passed to addFile() as soon as they are added. An
unreadable file emitted an error while the directory traversal was still
running, before the output pipeline existed, and the process exited on the
uncaught error. build_mod and zipDirectory now start the pipeline first and
reject instead. build_mod also removes the partial zip on failure.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
send_udp and get_host_udp_port indexed script data that is only created
on the first tick after patching, so calling them from on_init stopped
the server. They now return nothing until then.
Received packets were only polled once the host port was known, which
needs script commands. Poll whenever recv_udp exists instead, it does
nothing when the server runs without --enable-lua-udp.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The listener runs from the socket callback, so a non-async handler that
threw before returning a promise reached the unhandled error handler and
took down the host.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Download each Factorio version only once at a time
Instances starting together each downloaded the new version into the same
.tmp file and extracted into the same version directory, corrupting the
install. Keep the downloads in progress in a map by target directory and
let later callers wait on the existing download.
Fixes#1105
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RhMv1AxB8EZdyZoSJhyNmY
* Wait for a download in progress whose version looks installed
The changelog is extracted partway through the archive, so a server
checking during the extraction saw the version as installed and could
start the half-extracted install. Treat a version with a download in
progress as not installed, so the server waits on that download.
Hold the mocked download open in the concurrency tests and wait for the
second server to reach the waiting path instead of relying on a delay.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RhMv1AxB8EZdyZoSJhyNmY
---------
Co-authored-by: ILLISIS <jayson.harris01@gmail.com>
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Danielv123 pointed out the recv_udp crash was fixed in 2.1.10, not
2.1.12: recv_udp used an input action for synchronisation which the
headless server could not send without a player index. Verified on
downloaded headless builds, 2.1.9 crashes and 2.1.10 works.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Factorio 2.0.59 through 2.1.11 crash with "Trying to add invalid input
action to the closure" when helpers.recv_udp dispatches a received
packet, whether polled from on_tick or called from a command and
whether or not the server is paused. Reproduced on headless 2.0.77 and
2.1.8, works from 2.1.12 on. FactorioServer now refuses to start with
Lua UDP enabled on older versions, the docs say 2.1.12, and the
integration tests only enable it on 2.1.12 or later.
The to-game integration test polls recv_udp from on_tick like the
clusterio module does and sends commands to make the empty server tick.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Review feedback from Cooldude2606: UDP is most useful for arbitrary
blobs, so send_udp now takes any string and the packet is just
"channel?payload". Plugins get it as a udp-<channel> event with the
payload as a Buffer, or through handleUdp which logs handler errors
like handle does for ipc events.
The host socket is now opened when the RCON client is started and
closed where the RCON client is ended, matching how the RCON client is
handled, instead of being bound in start() and closed by _resetState.
The integration round trip moved to the FactorioServer tests, where it
sends a packet each way through a real server without the module.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Codecov flagged the sendUdp methods on Instance and BaseInstancePlugin,
the bind, socket error, malformed packet and send failure paths in
FactorioServer, and the --enable-lua-udp branch of startScenario. Add
unit tests for each and start the integration scenario test with UDP
enabled on Factorio 2.0.59+.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Add opt-in UDP messaging between the host and the Factorio server using
the --enable-lua-udp option of Factorio 2.0.59+. When
factorio.enable_lua_udp is set the instance binds a localhost UDP socket,
starts Factorio with --enable-lua-udp on factorio.lua_udp_port (random
if null, like the RCON port) and tells the clusterio module the host port
via clusterio_private.update_instance.
Data from Factorio is sent with clusterio_api.send_udp(channel, data) in
the same IPC format as send_json, so plugins receive it through the
existing ipc-<channel> events. Packets not sent from the Lua UDP port
are ignored, as that is the only unauthenticated way into the IPC
handler. Data to Factorio is sent with the new sendUdp method on
instances and instance plugins, and is dispatched in-game as
on_udp_packet_received events by polling helpers.recv_udp every tick
from the clusterio module.
Plugins requiring UDP declare the new LuaUdp feature flag, which like
SavePatching and ScriptCommands refuses to load the plugin on instances
without the option enabled.
Verified against a headless 2.1.17 server: send_udp and recv_udp are
silent no-ops when the option is off, so a stale port in a save that is
moved to an instance without UDP does no harm. The integration test
matrix now starts the instance with UDP enabled on Factorio 2.0.59+ and
round trips a player event over it.
Closes#969
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
* Let plugins migrate the data core stores for them
Plugins had no way to update the config fields and permissions core stores
for them, so renaming inventory_sync needed migrations in core packages.
A plugin can now declare a migrationEntrypoint. It's loaded on the
controller and hosts before configs and roles are read, for every plugin in
the plugin list, and attaches handlers to sync hooks for the controller,
host and instance configs and roles. lib gets helpers to rename config
fields and permissions, and each config gets a hidden <plugin>.version field
set after load so migrations can tell which version saved the data.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Write plugin versions while loading configs
The staging copy made by Config.set() went through the constructor, so
plugin migrations ran a second time on the live fields. A version-gated
migration was applied twice when setPluginVersions() changed the version.
Staging now copies the fields with update() instead.
A config saved without <plugin>.version got the running version as its
default, so setPluginVersions() saw no change and nothing saved the stamp.
The constructor now writes the registered plugin versions after the
migrations run and marks the config dirty when that changes a loaded value.
Controller.bootstrap() saves the instances that came out dirty, and
setPluginVersions() is gone.
Restructure the SyncHook and plugin config tests by method, and suggest the
controller config version for role migrations in the docs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Rename inventory_sync to player_sync
The plugin syncs more than inventories now (settings, appearance, recipe
notifications), so name it for what it does. The package becomes
@clusterio/plugin-player_sync and every inventory_sync identifier follows.
A migration entrypoint renames the inventory_sync config fields, including
load_plugin, and the inventory view permission. The plugin moves
inventories.json in the database directory to player_sync.json and
storage.inventory_sync in saves to storage.player_sync itself, and closes
dialogs left open under the old GUI names on startup.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Let old saves through the player left guard
on_pre_player_left_game runs before on_server_startup when an old autosave
with connected players is loaded, so the data is still under inventory_sync.
The guard returned before get_script_data() could move it, and the recovery
upload was never sent.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
The plugin syncs more than inventories now (settings, appearance, recipe
notifications), so name it for what it does. The package becomes
@clusterio/plugin-player_sync and every inventory_sync identifier follows.
A migration entrypoint renames the inventory_sync config fields, including
load_plugin, and the inventory view permission. The plugin moves
inventories.json in the database directory to player_sync.json and
storage.inventory_sync in saves to storage.player_sync itself, and closes
dialogs left open under the old GUI names on startup.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The staging copy made by Config.set() went through the constructor, so
plugin migrations ran a second time on the live fields. A version-gated
migration was applied twice when setPluginVersions() changed the version.
Staging now copies the fields with update() instead.
A config saved without <plugin>.version got the running version as its
default, so setPluginVersions() saw no change and nothing saved the stamp.
The constructor now writes the registered plugin versions after the
migrations run and marks the config dirty when that changes a loaded value.
Controller.bootstrap() saves the instances that came out dirty, and
setPluginVersions() is gone.
Restructure the SyncHook and plugin config tests by method, and suggest the
controller config version for role migrations in the docs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Plugins had no way to update the config fields and permissions core stores
for them, so renaming inventory_sync needed migrations in core packages.
A plugin can now declare a migrationEntrypoint. It's loaded on the
controller and hosts before configs and roles are read, for every plugin in
the plugin list, and attaches handlers to sync hooks for the controller,
host and instance configs and roles. lib gets helpers to rename config
fields and permissions, and each config gets a hidden <plugin>.version field
set after load so migrations can tell which version saved the data.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The controller logs the url and query of every HTTP request. Plugins
doing OAuth get the authorization code as a query parameter on their
callback route, so it ended up in the log. redactUrl now accepts a
path, code joins the redacted parameter names, and redactQuery covers
the parsed query in the log metadata.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* Fix running Clusterio from published packages
Since the move to ES modules and pnpm 12, packages installed from npm
fail to start:
- The package imports of @clusterio/lib point Node at TypeScript
sources, which Node refuses to strip types from inside node_modules.
- The controller, host and ctl import their package.json from next to
the compiled entrypoint, a copy pnpm leaves out of the package.
- ctl, host and web_ui have no .npmignore, so pnpm packs them using the
repository .gitignore and leaves out nearly all of dist/.
Resolve the package imports to the compiled files at runtime while
keeping the sources for type checking, import package.json by package
name so it resolves to the real file, and add .npmignore files so pnpm
packs the same files as npm.
* Load plugins installed from npm by package name
Plugins installed from npm are listed by package name, but the plugin
loader joined that name onto the main and entrypoint paths and imported
the result as a file, which resolves relative to the working directory.
Every npm installed plugin then failed to load. Resolve these paths from
the directory of the plugin's package.json instead.
HostRouter.wakeInstance() logged err.stack, which RequestError leaves
undefined, so a failed start was logged as "Error starting instance:
undefined" and the reason, such as no game port left in the range, was
lost.
Claude-Session: https://claude.ai/code/session_01F7obMEi4L4PzUQ8w8q9Uyz
Co-authored-by: ILLISIS <jayson.harris01@gmail.com>
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Plugins installed from npm are listed by package name, but the plugin
loader joined that name onto the main and entrypoint paths and imported
the result as a file, which resolves relative to the working directory.
Every npm installed plugin then failed to load. Resolve these paths from
the directory of the plugin's package.json instead.
WsServer attached no error listener to a new socket. WsServerConnector adds
one, but only after the handshake. ws emits an error for an invalid frame,
for example a close frame with the reserved status code 1006, and an error
event with no listener throws. That stopped the controller.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01F7obMEi4L4PzUQ8w8q9Uyz
Covers the icon_size default of 64 in the export icon loaders and the
host recreating saves and script-output when an instance is assigned.
Both tests fail when the original fix is reverted.
Closes#710
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
serializedConfigToString now asks a control-located config instance
whether each field is readable and writable instead of relying on a
hard-coded list per command. Hidden and unknown fields are skipped, and
field descriptions are written as comments above each value.
Object fields such as factorio.settings are now included, so they are
written as JSON, and configToKeyVal splits on the first = only so those
values survive the round trip.
Fixes#1051
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
EventSubscriber registers with the control's onAccountUpdate when it
has one and resends its subscription through handleAccountEvent. A lost
permission makes the request fail, a granted one syncs it again.
The web Control also reports the account on connect, so resends are
queued and sent once per tick. A failed subscription request now sets
synced to false and notifies callbacks, before the error never reached
the UI.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The old name read as an unconditional unsubscribe. Log following has
its own subscription outside SubscriptionController, so check
core.log.follow on permission changes too. Move the per-connection
work into one helper and split the tests into userPermissionsUpdated
and rolesUpdated, checking the account update event is sent.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Add controller.max_send_buffer_size in MiB, default 64 and 0 for no
limit. Close with 1013 instead of 1008 on overflow: clients treat 1008
as fatal, so a host would shut down and the web UI would log out. With
1013 the client resumes, the controller answers with invalidate since
the session has ended, and the client registers a new session.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Lowering the limit at runtime would leave connections holding more
filters than allowed, so read it once when the controller starts.
Move the limit tests into the subscribe and replace groups.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The controller HTTP access log and the express error log wrote the full
request headers at the http level, which both default log transports
keep. Clients send their access token in X-Access-Token or
Authorization: Bearer, so user and host tokens ended up in plain text
in controller and cluster logs, and the cluster log can be read back
over the API with core.log.query.
Mask the authorization, x-access-token, cookie and proxy-authorization
headers before logging.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Every message sent over a link is kept in the send buffer until the
other side acknowledges it with a heartbeat, so it can be resent if
the session resumes. Nothing forced a peer to acknowledge, so a client
that kept heartbeating without a sequence number while subscribed to a
busy event made the controller buffer messages until it ran out of
memory.
Store buffered messages serialised, track their total size, and close
the connection once it goes over maxSendBufferSize. The controller
sets this to 64 MiB for the connections it accepts. A client that far
behind could not resume in a reasonable time anyway.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The permission for a subscription was only checked when subscribing,
so a control connection kept receiving events after the user's roles
or role permissions changed to no longer allow it.
Add SubscriptionController.unsubscribeUnpermitted which rechecks every
subscription of a link and removes the ones the user is no longer
permitted, and call it for the affected control connections from
userPermissionsUpdated and rolesUpdated.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A subscriber could keep sending subscribe requests with new filters and
the controller would add every one of them to the subscriber's filter
set without bound, growing memory until it ran out.
Add controller.max_subscription_filters (default 10000) and reject
subscribe and replace requests that would leave a subscriber holding
more filters than that for one event.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
