- react: Update to new root rendering method
- react-router: Replace useHistory with useNavigate
- react-router: Replace <Switch> with <Routes>
- reimplement sticky notice from scratch in ModPackViewPage
- remove isomorphic-ws as it's latest version doesn't work and only
saves one line of code.
- remove import of antd.dark.css
- fix misc css breakages.
Add type object to schemas specifying properties and minItems to schemas
specifying tuples. Disable strictTuples because it's desirable to be
able to add additional items to the tuples in the future.
Update non-web related dependencies to their latest version were
possible. It appears yargs has changed its parsing of command line
options to no longer remove a layer of quotes.
The LTS releases for v12 and v14 are already end of life and the v16 is
end of life in under two months from now on. Bump supported version up
to v18 as it does not make sense to continue to support EOL releases.
Even if we wanted to keep supporting them, our dependencies will not.
Note that Node.js v18 is currently not avaliable via the NodeSource PPA
on Ubuntu 19.10 and below or Debian 9 and below.
It makes more sense to put the address first then have the large
structure to send as the second argument to sendTo. The opposite order
was originally chosen to be similar to that of sendto in BSD sockets.
Format arguments to have nested structures start on a new line instead
of inline to make it easier to see where the structures starts and what
structure it is.
Keep track of requests that have been forwarded over a link in a similar
manner to requests that were initiated on a link in order to properly
return an error response to the sender of the request if the link goes
down while the request is still pending at the forwarded node.
Validate messages received on the controller from hosts and control
nodes before handling or forwarding them. This should prevent
performing actions that are not allowed by the role system and block
simple attacks such as spoofing the source address of a message.
The data class pattern used for request and event payloads require the
class names to be preserved as they are used for identifying the type of
the requests and events.
Split up the action of registring an event or request data class to be
decoded by the Link class and the action of registring a handler for
those requests and events. This moves the validation work from Link
instantiation time to startup initialisation which makes logic errors
fail on startup instead of failing instantiation of the link when a
connection attempt is made.
Additionally implement a partial validation logic for messages received
using the newly refactored message registration. This unfortunately
ended up merged with the registration refactor.
Reverse the direction of the API for sending messages from
messageDefinition.send(link, { content });
to
link.send(new MessageClass(content));
and convert all message definitions to use the JSON serialisable class
pattern and explicit registration of message handlers, along with a
end-to-end based routing of messages instead of link to link.
The experience I gained from the existing way messages were defined and
sent over links was that it was difficult to understand for people
unfamiliar with the system. The automatic registration of message
handlers ment that code was being called as if by magic from nowhere
with no easy way to discover it. The manual forwarding and rules for
what can be sent where and how obscured its working.
The use of pure JSON as both input and output from message handlers made
it tedious to work with. Data had to be manually converted between the
program representation and the over the wire format, which made handler
code unplesant to write. Particularly because the over the wire format
used snake_case while the program code uses camelCase for variables.
The idea behind the decision to do it this way was to make it more clear
which data came from the wire and which from the program, and while this
worked it didn't make message handlers any nicer to write.
The direction of the API and magic registration of message handlers also
meant that a future migration to TypeScript would be troublesome. While
it may be possible to implement, the degree of TypeScript magic required
would go starkly against the principle of keep it simple stupid.
By refactoring to using the JSON serialisable class pattern most of
these issues go away. There is no longer a need to distinguish the on
wire format of messages with the program representation because the only
place that deals with the wire format of messages are the toJSON and
fromJSON methods on the classes themselves. Message handlers will work
with proper instances of classes instead of raw data, something that
makes them easier to write, and trivial to type with TypeScript.
End-to-end routing also simplifies sending messages that need to do
mulitple hops to reach the destination. And removes the need for having
all messages be specified in plugin's info module, as they can be routed
without having to be parsed completely.
The explicit registration of message handlers is something that I
thought would be tedious boilerplate code that could be automated away.
But experience now shows it to be the opposite. Allthough dull
repetition, the purpose it serves is to link together the code in a way
that humans can easily find. With explicit registration searching the
name of the message handler in the editor will show the registration that
ties it together with the type of message it handles and the kind of
registration. With implicit registration searching the name of the
message handler turns up only the handler with no clue as to what calls
it.
Change the JSON seriasiable data classes to use an explicit static
fromJSON method and an optional toJSON method for turning them to and
from JSON.
This improves over the previous pattern of passing the JSON to the
constructor as it frees up the constructor to be able to take whichever
argument types suits the code instead of being beholden to the JSON
serialised form.
Add migration code to installer fixing the names used in configs,
logs, database, and packages to reflect the new controller/host names
for people updating from alpha-13.
The role of a slave as a host for Factorio servers is not well reflected
in its name and has caused confusion among users. Rename slave to host
to better reflect its role as a host of Factorio servers.
The role of the master server as the party controlling every part of the
cluster is not well reflected in its name and has caused confusion among
users on several occasions. Rename master to controller to better
reflects its role.
Check patch number in update_instance step to ensure the clusterio_api
is properly initialized if the game started tick paused and no ticks
to trigger the patch check have happened yet.
Technologies that were disabled were ignored completely by research sync
due to a missunderstanding of what disabled means. Disabled does not
mean the tech is somehow inaccessible and completely out of play, it
only means it can't be selected in the technology screen.
Ignore the enabled status of technologies in research_sync to fix a
crash that happened when a mod enables a disabled by default technology
and the player attempts to research it.
If a system crash occurs after a simple write file + rename operation
the target file that was renamed over may end up being empty if the data
for the file written had not yet been committed to disk. This is
possible because no part of the open file, write data to it, close it
and then rename it ensure the data was actually written to disk prior to
the rename happening. See this discussion on the btrfs wiki[1].
Fix this possible data loss scenario by calling fsync on the temporary
file that is written prior to calling close on it.
[1] https://btrfs.wiki.kernel.org/index.php/FAQ#What_are_the_crash_guarantees_of_overwrite-by-rename.3F
All possible Promise rejections and exception bubbling should be handled
by either the code creating the exception or the code invoking the
operation that could fail. Treat therefore uncaught exceptions and
unhandled promise rejetions as fatal errors that log a traceback and
immedately terminate the Node.js process.
Hornwitser