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A new option reset_idle_timeout_on_send has been added.
When set to 'true', the idle timeout is reset not only
when data is received, but also when data is sent.
This allows sending large responses without having to
worry about timeouts triggering.
The default is currently unchanged but might change in
a future release.
LH: Greatly reworked the implementation so that the
timeout gets reset on almost all socket writes.
This essentially completely supersets the original
work. Tests are mostly the same although I
refactored a bit to avoid test code duplication.
This commit also changes HTTP/2 behavior a little when
data is received: Cowboy will not attempt to update the
window before running stream handler commands to avoid
sending WINDOW_UPDATE frames twice. Now it has some
small heuristic to ensure they can only be sent once
at most.
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The socket staying open meant that the graceful shut down
of the Cowboy listeners were waiting for the connections
to be closed gracefully (or a timeout). Closing explicitly
where it makes sense ensures we don't unnecessarily wait.
This commit removes a full minute in the run time of all
Cowboy test suites (minus examples).
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Sending extra response prevented by terminating all streams except
the one currently executing.
LH: Reworded some variables to make what happens more obvious.
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LH: I reworked the test a little and added the same test
for HTTP/2 so that both HTTP/1.1 and HTTP/2 get the issue
fixed.
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Note: This commit makes cowboy depend on cowlib master.
Graceful shutdown for HTTP/2:
1. A GOAWAY frame with the last stream id set to 2^31-1 is sent and a
timer is started (goaway_initial_timeout, default 1000ms), to wait
for any in-flight requests sent by the client, and the status is set
to 'closing_initiated'. If the client responds with GOAWAY and closes
the connection, we're done.
2. A second GOAWAY frame is sent with the actual last stream id and the
status is set to 'closing'. If no streams exist, the connection
terminates. Otherwise a second timer (goaway_complete_timeout,
default 3000ms) is started, to wait for the streams to complete. New
streams are not accepted when status is 'closing'.
3. If all streams haven't completed after the second timeout, the
connection is forcefully terminated.
Graceful shutdown for HTTP/1.x:
1. If a request is currently being handled, it is waited for and the
response is sent back to the client with the header "Connection:
close". Then, the connection is closed.
2. If the current request handler is not finished within the time
configured in transport option 'shutdown' (default 5000ms), the
connection process is killed by its supervisor (ranch).
Implemented for HTTP/1.x and HTTP/2 in the following scenarios:
* When receiving exit signal 'shutdown' from the supervisor (e.g. when
cowboy:stop_listener/3 is called).
* When a connection process is requested to terminate using
sys:terminate/2,3.
LH: Edited tests a bit and added todos for useful tests to add.
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And additional minor tweaks.
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Wrong option was being tested.
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Cowboy is 19+ so it's OK to use it.
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It allows disabling the chunked transfer-encoding. It
can also be disabled on a per-request basis, although
it will be ignored for responses that are not streamed.
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This allows requests that expect to run longer to do so
without impacting the configuration of other requests.
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It has changed in Gun 1.2.
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Make sure the test fails when the code is incorrect.
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Also fix the idle_timeout test which was producing
an extra crash log.
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We now flush messages that are specific to cowboy_http only.
Stream handlers should also flush their own specific messages
if necessary, although timeouts will be flushed regardless
of where they originate from.
Also renames the http_SUITE to old_http_SUITE to distinguish
new tests from old tests. Most old tests need to be removed
or converted eventually as they're legacy tests from Cowboy 1.0.
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Currently cowboy assumes that idle_timeout or request_timeout is
a number and always starts timers. Similar situation takes place
in case of preface_timeout for http2. This commit adds case for
handling infinity as a timeout, allowing to not start mentioned
timers.
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Allow `cowboy_router:compile` to handle colon characters within
path segments, rather than exiting with `badarg`. This is allowed
via RFC 7230 2.7 -> [RFC 3986 3.3](https://tools.ietf.org/html/rfc3986#section-3.3):
```
segment = *pchar
segment-nz = 1*pchar
segment-nz-nc = 1*( unreserved / pct-encoded / sub-delims / "@" )
; non-zero-length segment without any colon ":"
pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
```
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Cases where a request body was involved could sometimes
fail depending on timing. Also fix all of the old
http_SUITE tests.
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Found more bugs! Unfortunately no fix for them in this commit.
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Bad chunk sizes used to be accepted and could result in
a badly parsed body or a timeout. They are now properly
rejected.
Chunk extensions now have a hard limit of 129 characters.
I haven't heard of anyone using them and Cowboy does not
provide an interface for them, but we can always increase
or make configurable if it ever becomes necessary (but
I honestly doubt it).
Also a test from the old http suite could be removed. Yay!
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The Cowboy behavior has changed a little and gives more
accurate error responses now. And in some cases, successes.
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They have equivalents in req_SUITE.
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They are now cowboy:start_clear/3 and cowboy:start_tls/3.
The NumAcceptors argument can be specified via the
num_acceptor transport option. Ranch has been updated
to 1.4.0 to that effect.
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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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Correct expected return type from `no_call` to `undefined` in
if_modified_since when last_modified callback is not defined. Add an
http_SUITE test to catch regressions.
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Breaking changes with previous commit. This is a very large change,
and I am giving up on making a single commit that fixes everything.
More commits will follow slowly adding back features, introducing
new tests and fixing the documentation.
This change contains most of the work toward unifying the interface
for handling both HTTP/1.1 and HTTP/2. HTTP/1.1 connections are now
no longer 1 process per connection; instead by default 1 process per
request is also created. This has a number of pros and cons.
Because it has cons, we also allow users to use a lower-level API
that acts on "streams" (requests/responses) directly at the connection
process-level. If performance is a concern, one can always write a
stream handler. The performance in this case will be even greater
than with Cowboy 1, although all the special handlers are unavailable.
When switching to Websocket, after the handler returns from init/2,
Cowboy stops the stream and the Websocket protocol takes over the
connection process. Websocket then calls websocket_init/2 for any
additional initialization such as timers, because the process is
different in init/2 and websocket_*/* functions. This however would
allow us to use websocket_init/2 for sending messages on connect,
instead of sending ourselves a message and be subject to races.
Note that websocket_init/2 is optional.
This is all a big change and while most of the tests pass, some
functionality currently doesn't. SPDY is broken and will be removed
soon in favor of HTTP/2. Automatic compression is currently disabled.
The cowboy_req interface probably still have a few functions that
need to be updated. The docs and examples do not refer the current
functionality anymore.
Everything will be fixed over time. Feedback is more than welcome.
Open a ticket!
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Fixes #839 when 'Connection: Keep-Alive' wasn't sent in a HTTP/1.0
response. Now the usage of 'Connection' header is consistent with
current protocol version: when this header is not specified explicitly
in the response, HTTP/1.0 implies 'Connection: close' and HTTP/1.1
implies 'Connection: Keep-Alive'. So if current 'Connection' value
matches the default value of current protocol, we won't state obvious
fact in the response; and vice versa.
Amended to fix and improve tests, and revert the variable name
change from HTTP11Headers to StdHeaders. I think it's still good
to leave it as is because it's not really a standard header for
HTTP/1.0, and it's gone from HTTP/2 entirely.
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This is a large commit.
The rfc7230 test suite adds many tests from the RFC7230 document.
Gun has been updated quite a bit recently, which broke the Cowboy
suites. This is now fixed with this commit.
A new hook onfirstrequest has been added. It was very useful during
debugging of the test suites.
The initial process code has changed a little; more changes are
expected with the switch to maps for options.
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Now everywhere in Cowboy when we want to stop something we return
a 'stop' tuple instead of one of the many choices depending on
context that we had before.
This particular change affects middlewares, sub protocols and
REST handlers which were using 'halt' to stop processing.
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