# Change Log All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/). ## [0.18.9](https://github.com/CrowdHailer/Ace/tree/0.18.9) - 2019-10-30 ### Changed - Allow the users to specify socket options and opt out of HTTP/1.1 or HTTP2. ### Fixed - Fix dialyzer warning about `:elixir_errors.warn` on Elixir >= 1.9.0 ## [0.18.8](https://github.com/CrowdHailer/Ace/tree/0.18.8) - 2019-04-29 ### Fixed - HTTP2 connection handles case when peer cleanly closes connection. ## [0.18.7](https://github.com/CrowdHailer/Ace/tree/0.18.7) - 2019-04-25 ### Fixed - Correctly handle paths beginning with `//`. - `GET` requests with a body are handled correctly. - Unsupported methods are handled and return a 501 status response. ## [0.18.6](https://github.com/CrowdHailer/Ace/tree/0.18.6) - 2019-04-16 ### Added - Support for raxx 1.0.0. ## [0.18.5](https://github.com/CrowdHailer/Ace/tree/0.18.5) - 2019-03-19 ### Fixed - Correctly handled `te` header when parsing HTTP/2 requests. ## [0.18.4](https://github.com/CrowdHailer/Ace/tree/0.18.4) - 2019-02-07 ### Added - Support for raxx 0.18.0. ## [0.18.3](https://github.com/CrowdHailer/Ace/tree/0.18.3) - 2019-01-31 ### Fixed - Fixed `Ace.HTTP2.Connection` to handle application data sent as iolist. ## [0.18.2](https://github.com/CrowdHailer/Ace/tree/0.18.2) - 2019-01-04 ### Fixed - Fix incorrectly displayed warning from `use Raxx.SimpleServer`. ## [0.18.1](https://github.com/CrowdHailer/Ace/tree/0.18.1) - 2018-11-22 ### Added - Both `start_link/1,2` and `child_spec/1` generated by `Ace.HTTP.Service` are overridable. ## [0.18.0](https://github.com/CrowdHailer/Ace/tree/0.18.0) - 2018-10-28 ### Changed - `use Ace.HTTP.Service` no longer automatically adds a Raxx Server behaviour. Modules making use of `Ace.HTTP.Service` should now explicitly add `Raxx.Server` or `Raxx.SimpleServer`. ## [0.17.1](https://github.com/CrowdHailer/Ace/tree/0.17.1) - 2018-09-21 ### Fixed - Issue [113](https://github.com/CrowdHailer/Ace/issues/113) by adding `send_timeout` to sockets. ## [0.17.0](https://github.com/CrowdHailer/Ace/tree/0.17.0) - 2018-09-12 ### Changed - Updated to use Raxx `0.16.0` interface. ## [0.16.8](https://github.com/CrowdHailer/Ace/tree/0.16.8) - 2018-08-30 ### Added - Formatter check to travis. - Dialyzer check to travis. - HTTP/1 request backpressure. ### Changed - Internal updates to use serialization and parsing from Raxx project ### Fixed - Exit with status `:normal` in case where set_active call is made on closed socket. ## [0.16.7](https://github.com/CrowdHailer/Ace/tree/0.16.7) - 2018-07-15 ### Fixed - Requests with duplicate headers no longer cause `Elixir.RuntimeError: Headers should not be duplicated`. ## [0.16.6](https://github.com/CrowdHailer/Ace/tree/0.16.6) - 2018-07-05 ### Added - `Ace.HTTP.Service.count_connections/1` returns a number of connected clients for a given service. ## [0.16.5](https://github.com/CrowdHailer/Ace/tree/0.16.5) - 2018-06-04 ### Fixed - Handle error case when trying to send data via an already closed connection. ## [0.16.4](https://github.com/CrowdHailer/Ace/tree/0.16.4) - 2018-04-28 ### Added - Arguments to the child_spec of a service are now optional. ## [0.16.3](https://github.com/CrowdHailer/Ace/tree/0.16.3) - 2018-04-22 ### Added - Use `raxx 0.15.1` which adds a `raw_path` field to requests ## [0.16.2](https://github.com/CrowdHailer/Ace/tree/0.16.2) - 2018-04-21 ### Fixed - Make sure endpoint process replies to worker when sending complete response so worker exits normally instead of crashing. ## [0.16.1](https://github.com/CrowdHailer/Ace/tree/0.16.1) - 2018-04-18 ### Added - `Ace.HTTP.Channel` to encapsulate information about an exchange within the context of a connection. - `Ace.HTTP.Worker.start_link/2` workers must be started with a channel in addition to application. - Channel struct is added to the process dictionary of a worker, so socket information is available. ### Removed - `Ace.HTTP2.Stream.Reset` undocumented internal module. ## [0.16.0](https://github.com/CrowdHailer/Ace/tree/0.16.0) - 2018-04-18 ### Changed - Use `raxx 0.15` which has does not expect query strings to be parsed. ## [0.15.11](https://github.com/CrowdHailer/Ace/tree/0.15.11) - 2018-03-28 ### Added - `.formatter.exs` file for use with Elixir 1.6+ - `Ace.HTTP1.Parser.parse/2` returns categorized HTTP/2 frame instead of raw frame parts. ### Removed - `Ace.HTTP1.Parser.parse_from_buffer/2` use `Ace.HTTP1.Parser.parse/2` instead. - `Ace.HTTP2.Server` undocumented internal module. ## [0.15.10](https://github.com/CrowdHailer/Ace/tree/0.15.10) - 2018-01-20 ### Fixed - Use `GenServer` behaviour in `Ace.HTTP2.Connection` to add default handlers. - Ensure Endpoint handles its worker dying when sending chunked response. ## [0.15.9](https://github.com/CrowdHailer/Ace/tree/0.15.9) - 2018-01-11 ### Added - `__using__/1` macro to `Ace.HTTP.Service` that defines `start_link` and `child_spec`. ## [0.15.8](https://github.com/CrowdHailer/Ace/tree/0.15.8) - 2018-01-01 ### Added - `Ace.HTTP1.Parser` extracts functionality to incrementally parse data into parts of a Raxx message. - Server module is checked to implement `Raxx.Server` behaviour when starting a service. - `Client.stop/1` breaks connection established by a client. - `Ace.HTTP.Service.child_spec/1` added so services can be added to supervision trees in standard manner. - `Ace.HTTP.Worker` module added to public api. ### Removed - `Ace.Governor.Supervisor` is no longer necessary. ### Fixed - Request has scheme of `:http` when transmitted over `tcp` connection. - Worker monitors endpoint and will stop when endpoint stops. ## [0.15.7](https://github.com/CrowdHailer/Ace/tree/0.15.7) - 2017-12-28 ### Added - `OPTIONS`, `TRACE` and `CONNECT` method are understood in HTTP/2 requests. ## [0.15.5](https://github.com/CrowdHailer/Ace/tree/0.15.5) - 2017-11-29 ### Fixed - Ensure worker process terminates when complete response is sent. ## [0.15.4](https://github.com/CrowdHailer/Ace/tree/0.15.4) - 2017-11-11 ### Added - HTTP1.Endpoint sends 500 response when worker process crashes. ### Changed - Use `Logger.debug` to print warning about closing keep-alive connections. ## [0.15.3](https://github.com/CrowdHailer/Ace/tree/0.15.3) - 2017-11-05 ### Removed - No dependency on `HTTPStatus`. ## [0.15.2](https://github.com/CrowdHailer/Ace/tree/0.15.2) - 2017-10-29 ### Changed - Rely on `0.14.x` of raxx. ## [0.15.1](https://github.com/CrowdHailer/Ace/tree/0.15.1) - 2017-10-25 ### Fixed - Server startup logs include port number when serving via cleartext. ## [0.15.0](https://github.com/CrowdHailer/Ace/tree/0.15.0) - 2017-10-16 ### Changed - Rely on `0.13.x` of raxx. ### Removed - `Ace.HTTP2.Service`, instead use `Ace.HTTP.Service`. ## [0.14.8](https://github.com/CrowdHailer/Ace/tree/0.14.8) - 2017-10-9 ### Added - Upgrade via ALPN to HTTP/2 connections, when using `Ace.HTTP.Service`. ## [0.14.7](https://github.com/CrowdHailer/Ace/tree/0.14.7) - 2017-10-4 ### Removed - `Ace.Application` undocumented internal module - `Ace.TCP` undocumented internal module - `Ace.TLS` undocumented internal module - `Ace.Server` undocumented internal module - `Ace.Server.Supervisor` undocumented internal module ### Fixed - Limit forwarded keys to known ssl options only. - HTTP/2 connection always sends a `Raxx.Trailer` to close a stream with data. ## [0.14.6](https://github.com/CrowdHailer/Ace/tree/0.14.6) - 2017-09-29 ### Fixed - Workers exit normally when client connection is lost prematurely. ## [0.14.5](https://github.com/CrowdHailer/Ace/tree/0.14.5) - 2017-09-28 ### Added - `Ace.HTTP.Service` to communicate with HTTP/1 clients, functionality previously provided in `ace_http`. ## [0.14.4](https://github.com/CrowdHailer/Ace/tree/0.14.4) - 2017-09-27 ### Fixed - Stream will not queue data to send that is not a binary. ## [0.14.3](https://github.com/CrowdHailer/Ace/tree/0.14.3) - 2017-09-25 ### Fixed - Fixes made in `0.9.2` and `0.9.3` added to lastest. ## [0.14.2](https://github.com/CrowdHailer/Ace/tree/0.14.2) - 2017-09-19 ### Added - `Ace.HTTP2.ping/2` for checking a connection. ## [0.14.1](https://github.com/CrowdHailer/Ace/tree/0.14.1) - 2017-09-08 ### Added - Client certificate options added to `Ace.HTTP2.Client.start_link`. ## [0.14.0](https://github.com/CrowdHailer/Ace/tree/0.14.0) - 2017-08-31 ### Added - Send any Raxx message using `Ace.HTTP2.send/2`. ### Changed - Start services with `{hander, config}` instead of `{worker, args}` - All use of `Ace.Request` has been replaced with `Raxx.Request`. - All use of `Ace.Response` has been replaced with `Raxx.Response`. ### Removed - `Ace.Raxx.Handler` all applications are assumed to be raxx applications - `Ace.HTTP2.Client.send_request/2` use `Ace.HTTP2.send/2`. - `Ace.HTTP2.Client.send_data/2` use `Ace.HTTP2.send/2`. - `Ace.HTTP2.Client.send_trailers/2` use `Ace.HTTP2.send/2`. - `Ace.HTTP2.Server.send_request/2` use `Ace.HTTP2.send/2`. - `Ace.HTTP2.Server.send_data/2` use `Ace.HTTP2.send/2`. - `Ace.HTTP2.Server.send_promise/2` use `Ace.HTTP2.send/2`. - `Ace.HTTP2.Server.send_reset/2` server should exit instead. ## [0.13.1](https://github.com/CrowdHailer/Ace/tree/0.13.1) - 2017-08-26 ### Added - Client can start with `:enable_push` option. - Client can start with `:max_concurrent_streams` option. - Server push is only forwarded to client if accepted by client. ### Fixed - PushPromise frames do not exceed maximum frame size. - Continuation frames must follow on same stream. ## [0.13.0](https://github.com/CrowdHailer/Ace/tree/0.13.0) - 2017-08-23 ### Changed - Request scheme is atom instead of string. - Request method is atom instead of string. ## [0.12.1](https://github.com/CrowdHailer/Ace/tree/0.12.1) - 2017-08-22 ### Fixed - Raxx changed from being an optional dependency ## [0.9.3](https://github.com/CrowdHailer/Ace/tree/0.9.3) - 2017-08-20 ### Changed - Discard down messages from unknown monitors. - Accept request with absolute URL's in request line. ## [0.12.0](https://github.com/CrowdHailer/Ace/tree/0.12.0) - 2017-08-17 ### Added - Client can fetch an idle stream using `Ace.HTTP2.Client.stream/1`. - Forward stream resets with reason to worker processes. - `Ace.HTTP2.Client.send_request/2`. - `Ace.HTTP2.Client.send_trailers/2`. - `Ace.HTTP2.Server.send_response/2`. - `Ace.HTTP2.Server.send_reset/2`. - Inspect protocol implementation for each frame type. ### Changed - Server receives request object not raw headers. - Server sends with response object not raw headers. - Client cannot start a stream with request. - `Ace.HTTP2.Stream.RaxxHandler` renamed to `Ace.Raxx.Handler` ## [0.9.2](https://github.com/CrowdHailer/Ace/tree/0.9.2) - 2017-08-4 ### Fixed - Governor to correctly demonitor started servers. ## [0.11.1](https://github.com/CrowdHailer/Ace/tree/0.11.1) - 2017-08-03 ### Added - Client for HTTP/2.0. ## [0.11.0](https://github.com/CrowdHailer/Ace/tree/0.11.0) - 2017-08-01 ### Added - Casting for accepted values for each known setting. - Flow control for outbound data. ### Changed - Creating priority frame requires exclusive value. ### Fixed - Graceful handling of closed connections. - Correctly keep state for multiple connection frames. - Discard trailers sent to Raxx handler. - Frames of unknown type are discarded. - Ignores unknown flags for each frame type. - Ignores value of reserved bit in frame head. - Ensure only continuation frames can be sent after end_headers is false. - Return protocol error for invalid priority frame. - Return protocol error for invalid rst_stream frame. - Recognise reseting idle stream as a protocol error. - Decoding of acked ping frame. - Correct error codes for invalid window updates. - Handle unknown error code from client. - Limit pseudo-headers to those defined in RFC7540. - All pseudo-headers must be sent before other headers. - Header keys must be lowercase. - Pseudo header values cannot be empty. - Fix off by one error for maximum size of frames. - Return protocol error for header or data sent after a stream reset. - Forbid unknown frames to be present in a continuation stream. - Treat incorrect content length as protocol error. - Trailing header block must end the stream. - Protocol error if starting new stream with lower stream_id. - Disallow flow control windows from exceeding maximum value. ## [0.10.0](https://github.com/CrowdHailer/Ace/tree/0.10.0) - 2017-07-21 ### Added - HTTP/2.0 support via `Ace.HTTP2` ## [0.9.1](https://github.com/CrowdHailer/Ace/tree/0.9.1) - 2017-06-14 ### Changed - Reduced noise from errors of prematurely closed connections. ## [0.9.0](https://github.com/CrowdHailer/Ace/tree/0.9.0) - 2017-04-16 ### Changed - Requires Elixir 1.4 and above, required applications are now listed as `extra_applications`. ## [0.8.1](https://github.com/CrowdHailer/Ace/tree/0.8.1) - 2017-04-02 ### Added - Warning logged when application module is not using the `Ace.Application` behaviour. ## [0.8.0](https://github.com/CrowdHailer/Ace/tree/0.8.0) - 2017-03-26 ### Added - `Ace.TLS` for tcp/ssl endpoints, matching `Ace.TCP` function profiles. - `Ace.Connection` to normalise `:gen_tcp`/`:ssl` interfaces. - Governors can be throttled to zero to drain connections, see `Ace.Governor.Supervisor.drain/1` ### Changed - New connection calls `handle_connect/2` not `init/2` - Connection lost calls `handle_disconnect/2` not `terminate/2` - `Ace.TCP` is now the callback module when starting and endpoint, there is no `Ace.TCP.Endpoint` module anymore. - `Ace.Governor` now a `GenServer` to handle OTP sys calls ### Removed - `Ace.TCP.Server`, now `Ace.Server`. - `Ace.TCP.Server.Supervisor`, now `Ace.Server.Supervisor`. - `Ace.TCP.Governor`, now `Ace.Governor`. - `Ace.TCP.Governor.Supervisor`, now `Ace.Governor.Supervisor`. ## [0.7.1](https://github.com/CrowdHailer/Ace/tree/0.7.1) - 2017-02-13 ### Changed - Startup information is printed using `Logger` and not directly `IO`. ### Fixed - Remove warnings about bracket use from Elixir 1.4. ## [0.7.0](https://github.com/CrowdHailer/Ace/tree/0.7.0) - 2016-10-26 ### Added - Support a response with a timeout from server modules. Passed directly to GenServer so integer and `:hibernate` responses are supported. - Support closing the connection from the server side. It is best to reserver server side closing for misbehaving connections. - Added callbacks to `Ace.TCP.Server` so that is can be included as a behaviour. ## [0.6.3](https://github.com/CrowdHailer/Ace/tree/0.6.3) - 2016-10-24 ### Changed - Information for new connections is now passed to the server as a map. ## [0.6.2](https://github.com/CrowdHailer/Ace/tree/0.6.2) - 2016-10-24 ### Added - Endpoints can be registered as named processes by passing in a value for the `:name` option. Possible values for this are the same as for the underlying `GenServer`. - The number of servers simultaneously accepting can now be configured. Pass an integer value to the `:acceptors` option when starting and endpoint. Default value is 50. ## [0.6.1](https://github.com/CrowdHailer/Ace/tree/0.6.1) - 2016-10-17 ### Added - `Ace.TCP.Endpoint.port/1` will return the port an endpoint is listening too. Required when the port option is set to `0` and the port is allocated by the OS. ### Fixed - The `handle_packet` and `handle_info` callbacks for a server module are able produce a return of the format `{:nosend, state}`. ## [0.6.0](https://github.com/CrowdHailer/Ace/tree/0.6.0) - 2016-10-17 ### Added - Collect all processes in an endpoint `GenServer` so that they can be started as a unit and only the endpoint is linked to the calling process. This allows for endpoints to be added to supervision tree. ### Removed - `Ace.TCP.start/2` use `start_link/2` instead which takes app as the first argument not the second. ## [0.5.2](https://github.com/CrowdHailer/Ace/tree/0.5.2) - 2016-10-13 ### Changed - The governors will keeps starting server processes to match demand. ## [0.5.1](https://github.com/CrowdHailer/Ace/tree/0.5.1) - 2016-10-10 ### Changed - Send any message that is not TCP related to the `handle_info` callback, previous only messages that matched `{:data, info}` where handled. ## [0.5.0](https://github.com/CrowdHailer/Ace/tree/0.5.0) - 2016-10-07 ### Added - How to hande a tcp connection is specified by an application server module. ## [0.4.0](https://github.com/CrowdHailer/Ace/tree/0.4.0) - 2016-10-06 ### Added - System sends welcome message. - System sends data messages over the socket. ### Changed - Starting a server no longer blocks until the connection has been closed. ## [0.3.0](https://github.com/CrowdHailer/Ace/tree/0.3.0) - 2016-10-04 ### Added - Dialyzer for static analysis, with updated contributing instructions. ### Changed - Nothing, only bumped version due to incorrect publishing on hex. ## [0.2.0](https://github.com/CrowdHailer/Ace/tree/0.2.0) - 2016-10-04 ### Added - ExUnit test suit and single test case. - ExDoc for first hex published version. ### Changed - Restructured to a mix project. Follow new start up instructions in README. ## [0.1.1](https://github.com/CrowdHailer/Ace/tree/0.1.1) - 2016-10-03 ### Fixed - Handle socket closed by client. ## [0.1.0](https://github.com/CrowdHailer/Ace/tree/0.1.0) - 2016-09-18 ### Added - The simplest TCP echo server. - All code exists in a single source file `server.ex`. - Documentation is added to the [source code](https://github.com/CrowdHailer/Ace/blob/master/server.ex).