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2017-02-19Change the order of set_resp_cookie argumentsLoïc Hoguin
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.
2017-02-18Allow passing options to sub protocolsLoïc Hoguin
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.
2017-01-22Add experimental cowboy_compress_h stream handlerLoïc Hoguin
Currently marked as experimental because it can't be tweaked (just enabled/disabled) and because it is not documented yet.
2017-01-04Make the new cowboy_req tests more realistic2.0.0-pre.5Loïc Hoguin
2017-01-04Add functions for getting and setting response headersJohan Lövdahl
2016-08-15Allow websocket_init/1 to reply/close/hibernateLoïc Hoguin
2016-08-10Make reply functions return ReqLoïc Hoguin
2016-08-10Update the multipart reading interfaceLoïc Hoguin
Now named read_part/read_part_body, with a verb indicating action.
2016-08-10Add a lot of todosLoïc Hoguin
2016-08-10Add tests for responses and request body readingLoïc Hoguin
This is a large commit. The cowboy_req interface has largely changed, and will change a little more. It's possible that some examples or tests have not been converted to the new interface yet. The documentation has not yet been updated. All of this will be fixed in smaller subsequent commits. Gotta start somewhere...
2016-06-22Add forgotten changes to a test handlerLoïc Hoguin
2016-06-21Add cowboy_req:uri/1,2Loïc Hoguin
Along with more cowboy_req tests. This commit also removes cowboy_req:url/1 and cowboy_req:host_url/1 in favor of the much more powerful new set of functions.
2016-06-20Add initial req suiteLoïc Hoguin
2016-03-05Initial commit with connection/streamsLoïc Hoguin
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!
2015-05-05Add rfc7230 test suite and update others to recent GunLoïc Hoguin
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.
2015-02-03Use cowlib masterLoïc Hoguin
2014-11-07Rename 'shutdown' close reason and tuples to 'stop'Loïc Hoguin
The 'shutdown' atom has a specific meaning inside OTP. We are instead going to use 'stop' which is pretty much the equivalent of what we actually do. 'shutdown' is now reserved for future special processes implementation.
2014-09-30Improve handler interface and documentationLoïc Hoguin
This change simplifies a little more the sub protocols mechanism. Aliases have been removed. The renaming of loop handlers as long polling handlers has been reverted. Plain HTTP handlers now simply do their work in the init/2 callback. There is no specific code for them. Loop handlers now follow the same return value as Websocket, they use ok to continue and shutdown to stop. Terminate reasons for all handler types have been documented. The terminate callback is now appropriately called in all cases (or should be). Behaviors for all handler types have been moved in the module that implement them. This means that cowboy_handler replaces the cowboy_http_handler behavior, and similarly cowboy_loop replaces cowboy_loop_handler, cowboy_websocket replaces cowboy_websocket_handler. Finally cowboy_rest now has the start of a behavior in it and will have the full list of optional callbacks defined once Erlang 18.0 gets released. The guide has been reorganized and should be easier to follow.
2014-09-26Unify the init and terminate callbacksLoïc Hoguin
This set of changes is the first step to simplify the writing of handlers, by removing some extraneous callbacks and making others optional. init/3 is now init/2, its first argument being removed. rest_init/2 and rest_terminate/2 have been removed. websocket_init/3 and websocket_terminate/3 have been removed. terminate/3 is now optional. It is called regardless of the type of handler, including rest and websocket. The return value of init/2 changed. It now returns {Mod, Req, Opts} with Mod being either one of the four handler type or a custom module. It can also return extra timeout and hibernate options. The signature for sub protocols has changed, they now receive these extra timeout and hibernate options. Loop handlers are now implemented in cowboy_long_polling, and will be renamed throughout the project in a future commit.
2014-09-23Breaking update of the cowboy_req interfaceLoïc Hoguin
Simplify the interface for most cowboy_req functions. They all return a single value except the four body reading functions. The reply functions now only return a Req value. Access functions do not return a Req anymore. Functions that used to cache results do not have a cache anymore. The interface for accessing query string and cookies has therefore been changed. There are now three query string functions: qs/1 provides access to the raw query string value; parse_qs/1 returns the query string as a list of key/values; match_qs/2 returns a map containing the values requested in the second argument, after applying constraints and default value. Similarly, there are two cookie functions: parse_cookies/1 and match_cookies/2. More match functions will be added in future commits. None of the functions return an error tuple anymore. It either works or crashes. Cowboy will attempt to provide an appropriate status code in the response of crashed handlers. As a result, the content decode function has its return value changed to a simple binary, and the body reading functions only return on success.
2014-07-12Reply with 400 on header parsing crashLoïc Hoguin
This is a first step to improve the HTTP status codes returned by Cowboy on crashes. We will tweak it over time. Also fixes a small bug where two replies may have been sent when using loop handlers under rare conditions.
2014-04-26Make loop handlers work with SPDYLoïc Hoguin
Adds a loop_handler test suite that runs all tests under HTTP, HTTPS, SPDY each with and without the compress option enabled. Fixes output filtering that used to filter more than it should have. This forces us to parse the string sent by the emulator, which means it's probably not perfect yet. But it should at least not hide errors we want to see. Fix a crash in the output filtering code that entirely disabled output. Now when there is a crash the normal tty output is restored. Handlers are now in test/handlers/ as they can be reused between suites. Only generate a single certificate for the whole ct run to speed things up when we got many different test groups each needing certificates.