A mistake I've repeatedly made is along these lines:
```c++
auto nread = TRY(source_file->read(buffer));
TRY(destination_file->write(buffer));
```
It's a little clunky to have to create a Bytes or StringView from the
buffer's data pointer and the nread, and easy to forget and just use
the buffer. So, this patch changes the read() function to return a
Bytes of the data that were just read.
The other read_foo() methods will be modified in the same way in
subsequent commits.
Fixes#13687
read_length in WebSocket::read_frame is used to track how many bytes we
have read in from the network. However, we was subtracting the number
of read in bytes instead of adding, underflowing it to about the 64-bit
unsigned integer limit.
This effectively limited us to only doing one read from the network.
This was only an issue if the server stalled when sending data,
which is especially common for large payloads. This would also cause us
to go out of sync. This meant when a new frame came in, we would read
the payload data of the previous frame as if it was the frame header
and payload of the next frame.
This allows us to read in the initial payload from Discord Gateway
that describes to the client the servers we are in, the emotes the
server has, the channels it has, etc. For an account that's only in
the Serenity Discord, this was about 20 KB (compressed!)
According to RFC 6455 sections 5.5.2-5.5.3 Ping and Pong frames
can have empty "Application data" that means payload can be of size 0.
This change fixes failed "buffer.size()" assertion inside
of Core::Stream::write_or_error by not trying to send empty payload
in WebSocket::send_frame.
As LibTLS now supports the Core::Stream APIs, we can get rid of the
split paths for TCP/TLS and significantly simplify the code as well.
Provided to you free of charge by the Core::Stream-ification team :^)
This commit converts TLS::TLSv12 to a Core::Stream object, and in the
process allows TLS to now wrap other Core::Stream::Socket objects.
As a large part of LibHTTP and LibGemini depend on LibTLS's interface,
this also converts those to support Core::Stream, which leads to a
simplification of LibHTTP (as there's no need to care about the
underlying socket type anymore).
Note that RequestServer now controls the TLS socket options, which is a
better place anyway, as RS is the first receiver of the user-requested
options (though this is currently not particularly useful).
Apologies for the enormous commit, but I don't see a way to split this
up nicely. In the vast majority of cases it's a simple change. A few
extra places can use TRY instead of manual error checking though. :^)
Derivatives of Core::Object should be constructed through
ClassName::construct(), to avoid handling ref-counted objects with
refcount zero. Fixing the visibility means that misuses like this are
more difficult.
The callback should be called as soon as the connection is established,
and if we actually set the callback when it already is, we expect it to
be called immediately.
We don't want to destroy the WebSocketImpl while we're still using it
higher up the stack. By using deferred_invoke(), we allow the stack
to unwind before actually destroying any objects.
This fixes an issue with the WebSocket service crashing on immediate
connection failure.
Only one place used this argument and it was to hold on to a strong ref
for the object. Since we already do that now, there's no need to keep
this argument around since this can be easily captured.
This commit contains no changes.
Previously, AK::Function would accept _any_ callable type, and try to
call it when called, first with the given set of arguments, then with
zero arguments, and if all of those failed, it would simply not call the
function and **return a value-constructed Out type**.
This lead to many, many, many hard to debug situations when someone
forgot a `const` in their lambda argument types, and many cases of
people taking zero arguments in their lambdas to ignore them.
This commit reworks the Function interface to not include any such
surprising behaviour, if your function instance is not callable with
the declared argument set of the Function, it can simply not be
assigned to that Function instance, end of story.
This was caused by a double notifier on the TLS socket, which caused
the TLS code to freak out about not being able to read properly. In
addition, the existing loop inside of drain_read() has been replaced by
code that actually works, and which includes new warnings when the
drain method is called before initialization is done or after the
websocket gets closed.
The WebSocket service isolates communication with a WebSocket to its
own isolated process. Similar to other isolating services, it has its
own user and group.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
