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2020-02-08Clarify modifying/adding to the Req objectLoïc Hoguin
2020-02-07Fix HTTP/1.1 bug when a flow command is returned after finLoïc Hoguin
This resulted in a badarith error due to the current flow being set to infinity when the body has been fully read. A test case has been added reproducing the issue.
2020-02-05Add a test confirming push requests have no bodyLoïc Hoguin
2020-01-17Fix bugs related to HTTP/1.1 pipeliningLoïc Hoguin
The flow control is now only set to infinity when we are skipping the request body of the stream that is being terminated. This fixes a bug where it was set to infinity while reading a subsequent request's body, leading to a crash. The timeout is no longer reset on stream termination. Timeout handling is already done when receiving data from the socket and doing a reset on stream termination was leading to the wrong timeout being set or the right timeout being reset needlessly.
2020-01-06Fix cowboy_req:parse_header manual for unknown headersLoïc Hoguin
2020-01-06Add a skeleton performance chapter to the guideLoïc Hoguin
2020-01-06Use active,NLoïc Hoguin
This reduces the number of times we need to ask for more packets, and as a result we get a fairly large boost in performance, especially with HTTP/1.1. Unfortunately this makes Cowboy require at least Erlang/OTP 21.3+ because the ssl application did not have active,N. For simplicity the version required will be Erlang/OTP 22+. In addition this change improves hibernate handling in cowboy_websocket. Hibernate will now work for HTTP/2 transport as well, and stray or unrelated messages will no longer cancel hibernate (the process will handle the message and go back into hibernation). Thanks go to Stressgrid for benchmarking an early version of this commit: https://stressgrid.com/blog/cowboy_performance_part_2/
2020-01-02Reduce number of Transport:send/2 calls for HTTP/2Loïc Hoguin
When sending a complete response it is far more efficient to send the headers and the body in one Transport:send/2 call instead of two or more, at least for small responses. This is the HTTP/2 counterpart to what was done for HTTP/1.1 many years ago in bfab8d4b22d858e7cffa97d04210a62fae56681c. In HTTP/2's case however the implementation is a little more difficult due to flow control. On the other hand the optimization will apply not only for headers/body but also for the body of multiple separate responses, which may need to be sent all at the same time when we receive a WINDOW_UPDATE frame. When a body is sent using sendfile however a separate call is still made.
2019-12-31No longer use erlang:get_stacktrace/0Loïc Hoguin
It has been deprecated in OTP and the new way is available on all supported OTP versions.
2019-12-31Ignore malformed accept-encoding headers in cowboy_compress_hMarcos Ferreira
2019-12-31Add sponsor link to the READMELoïc Hoguin
2019-12-31Add a commented option in the MakefileLoïc Hoguin
2019-12-31Test trailers bug when there are data frames in queueTony Han
2019-12-31Add new RFCs to the listLoïc Hoguin
2019-10-10Use /long_polling for rfc7540 tests that reset the stream2.7.0Loïc Hoguin
2019-10-10Don't log stray messages for lingering HTTP/2 streamsLoïc Hoguin
2019-10-10Cowboy 2.7.0Loïc Hoguin
2019-10-10Fix a number of low hanging todosLoïc Hoguin
2019-10-10Newly documented cow_cookie:cookie_opts() is now a mapLoïc Hoguin
2019-10-10Add shutdown_reason Websocket commandLoïc Hoguin
This allows changing the normal exit reason of Websocket processes, providing a way to signal other processes of why the exit occurred.
2019-10-09Implement flow control for HTTP/1.1Loïc Hoguin
We now stop reading from the socket unless asked to, when we reach the request body. The option initial_stream_flow_size controls how much data we read without being asked, as an optimization. We may also have received additional data along with the request headers. This commit also reworks the timeout handling for HTTP/1.1 because the stray timeout message was easily reproducible after implementing the flow control. The issue should be gone for good this time.
2019-10-07Add migration guide for Cowboy 2.7Loïc Hoguin
2019-10-07Add new stream handlers to the guideLoïc Hoguin
Also link from the guide to manual pages.
2019-10-07Document no date/server headers from response/headers commandsLoïc Hoguin
2019-10-07Add cowboy_req:cast/2Loïc Hoguin
Better than sending messages manually.
2019-10-07Fix an intermittent test issueLoïc Hoguin
2019-10-07Document the set_options stream handler commandLoïc Hoguin
2019-10-07Document the log stream handler commandLoïc Hoguin
2019-10-07Document the logger optionLoïc Hoguin
2019-10-07Document cowboy_tracer_hLoïc Hoguin
2019-10-07Document cowboy_metrics_hLoïc Hoguin
2019-10-06Document the commands based Websocket interfaceLoïc Hoguin
The old interface with ok|reply|stop tuples is deprecated.
2019-10-06Fix PUT when resource doesn't exist in flowchartLoïc Hoguin
This required moving around a lot of things so hopefully I did not add errors while doing so. Only time will tell. Also add the 415 that can result from content_types_accepted.
2019-10-06Document how to recover from cookie parsing errorsLoïc Hoguin
2019-10-05Add Websocket option validate_utf8Loïc Hoguin
This allows disabling the UTF-8 validation check for text and close frames.
2019-10-05Don't discard data following a Websocket upgrade requestLoïc Hoguin
While the protocol does not allow sending data before receiving a successful Websocket upgrade response, we do not want to discard that data if it does come in.
2019-10-05Fix REST flowchart around 201 response for PUTLoïc Hoguin
When the method is PUT we do not check the location header.
2019-10-05Add cowboy_req:filter_cookies/2Loïc Hoguin
2019-10-04Make cowboy_compress_h add vary: accept-encodingLoïc Hoguin
2019-10-04Improve some early_error testsLoïc Hoguin
2019-10-03Document media type wildcard in content_types_acceptedLoïc Hoguin
2019-10-03Make stream_error early_error reasons consistentLoïc Hoguin
Now both HTTP/1.1 and HTTP/2 follow the documented format. HTTP/1.1 was including an extra element containing the StreamID before, which was unnecessary because it is also given as argument to the callback. HTTP/2 early_error will now include headers in its PartialReq.
2019-10-03Add HTTP/2 tests with responses with HTTP/1.1 specific headersLoïc Hoguin
2019-10-03Document stopping the listener in App:stop/1Loïc Hoguin
2019-10-02Fix another Dialyzer warningLoïc Hoguin
2019-10-02Ensure we can stream the response body from any processLoïc Hoguin
2019-10-02Ensure we can read the request body from any processLoïc Hoguin
2019-10-02Make sure cowboy_http doesn't receive stray timeout messagesLoïc Hoguin
2019-10-02Add {set_options, #{metrics_user_data := Map}}Loïc Hoguin
This allows giving custom metadata to the metrics stream handler. This can be useful to for example provide the name of the module handling the request which is only known after routing. But any user data is allowed. When called multiple times the user data maps are merged.
2019-10-02Add more HTTP/1.1 header parsing testsLoïc Hoguin
Fix a case where Cowboy was waiting for more data that simply did not come. Now Cowboy will generate an error immediately when a header line has no colon separator. These test cases come from known request smuggling attack vectors. Cowboy was not vulnerable to any of them.
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