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To accomplish this the code for sending the 101 response was
moved to the cowboy_http2 module.
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This callback is called when an error occurs before the request
(including headers, excluding body) was fully received. The
init/3 callback will not be called. The callback receives the
partial Req object (possibly empty), the reason for the error
and the response command that the server will send. It allows
you to be aware of the error and possibly modify the response
before it is sent.
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These tests cover frame sizes. It's mostly edge cases for sure
(ie misbehaving clients and us having to reject them properly).
I had these almost ready for a long time, so I'm glad I can
push them out.
This requires updating Cowlib too (we currently track master).
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Maps make more sense because the keys are unique.
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The Opts value is put last, to be more consistent with the
rest of the cowboy_req module.
Additionally a test handler was fixed which reduced the number
of errors in http_SUITE.
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The API will be more consistent like this, and we can ensure
that duplicate cookie names are never sent.
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Before this commit we had an issue where configuring a
Websocket connection was simply not possible without
doing magic, adding callbacks or extra return values.
The init/2 function only allowed setting hibernate
and timeout options.
After this commit, when switching to a different
type of handler you can either return
{module, Req, State}
or
{module, Req, State, Opts}
where Opts is any value (as far as the sub protocol
interface is concerned) and is ultimately checked
by the custom handlers.
A large protocol like Websocket would accept only
a map there, with many different options, while a
small interface like loop handlers would allow
passing hibernate and nothing else.
For Websocket, hibernate must be set from the
websocket_init/1 callback, because init/2 executes
in a separate process.
Sub protocols now have two callbacks: one with the
Opts value, one without.
The loop handler code was largely reworked and
simplified. It does not need to manage a timeout
or read from the socket anymore, it's the job of
the protocol code. A lot of unnecessary stuff was
therefore removed.
Websocket compression must now be enabled from
the handler options instead of per listener. This
means that a project can have two separate Websocket
handlers with different options. Compression is
still disabled by default, and the idle_timeout
value was changed from inifnity to 60000 (60 seconds),
as that's safer and is also a good value for mobile
devices.
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One had the todo text fixed, another had the task to do done.
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Also finish implementing the relevant test, getting rid of todos.
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A bit late but at least removes a todo.
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... instead of hard-coding "make".
First, we check the value of `$MAKE`. If it's unset, we look for `gmake`
in the `$PATH`. If it's missing, we assume it's `make`.
This fixes the testsuite where GNU Make is installed as `gmake`.
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If cowboy_static is initialized with `{priv_file, ...}` or `{priv_dir,
...}`, it is now able to read files from Erlang application .ez
archives.
When serving a file from an archive, the #file_info{} comes from the
archive, not the contained file, except for the size and type. The
erl_prim_loader module is used to read the latter's #file_info{} and the
actual file content (ie. sendfile(2) is not used in this case).
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Currently marked as experimental because it can't be tweaked
(just enabled/disabled) and because it is not documented yet.
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This would prevent the client from knowing whether the request
was received fully without the connection closing first.
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The {data, IsFin, Data} uses IsFin to indicate whether this
is the last chunk, while chunked transfer-encoding uses the
length of Data, and ends when it is 0. We must therefore not
send chunks with empty data.
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The stream handlers can be specified using the protocol
option 'stream_handlers'. It defaults to [cowboy_stream_h].
The cowboy_stream_h module currently does not forward the
calls to further stream handlers. It feels like an edge
case; usually we'd want to put our own handlers between
the protocol code and the request process. I am therefore
going to focus on other things for now.
The various types and specifications for stream handlers
have been updated and the cowboy_stream module can now
be safely used as a behavior. The interface might change
a little more, though.
This commit does not include tests or documentation.
They will follow separately.
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Putting them in the correct test suite, with the proper
documentation etc.
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This commit changes Cowboy to follow RFC6585.
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The only ROADMAP now is small fixes toward making it stable
and very little interface changes, so the file is not that
useful anymore.
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Information can be found in cgit.
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In particular the cowboy_sub_protocol is subject to change soon.
Also the cowboy_stream behavior is going to be left hidden in
this release and enabled when it becomes easier to chain them.
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