122 lines
4.2 KiB
C++
122 lines
4.2 KiB
C++
/*
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* nghttp2 - HTTP/2 C Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SHRPX_HTTP2_UPSTREAM_H
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#define SHRPX_HTTP2_UPSTREAM_H
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#include "shrpx.h"
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#include <memory>
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#include <ev.h>
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#include <nghttp2/nghttp2.h>
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#include "shrpx_upstream.h"
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#include "shrpx_downstream_queue.h"
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#include "memchunk.h"
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using namespace nghttp2;
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namespace shrpx {
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class ClientHandler;
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class HttpsUpstream;
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class Http2Upstream : public Upstream {
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public:
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Http2Upstream(ClientHandler *handler);
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virtual ~Http2Upstream();
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virtual int on_read();
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virtual int on_write();
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virtual int on_timeout(Downstream *downstream);
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virtual int on_downstream_abort_request(Downstream *downstream,
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unsigned int status_code);
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virtual ClientHandler *get_client_handler() const;
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virtual int downstream_read(DownstreamConnection *dconn);
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virtual int downstream_write(DownstreamConnection *dconn);
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virtual int downstream_eof(DownstreamConnection *dconn);
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virtual int downstream_error(DownstreamConnection *dconn, int events);
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void add_pending_downstream(std::unique_ptr<Downstream> downstream);
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void remove_downstream(Downstream *downstream);
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int rst_stream(Downstream *downstream, uint32_t error_code);
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int terminate_session(uint32_t error_code);
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int error_reply(Downstream *downstream, unsigned int status_code);
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virtual void pause_read(IOCtrlReason reason);
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virtual int resume_read(IOCtrlReason reason, Downstream *downstream,
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size_t consumed);
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virtual int on_downstream_header_complete(Downstream *downstream);
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virtual int on_downstream_body(Downstream *downstream, const uint8_t *data,
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size_t len, bool flush);
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virtual int on_downstream_body_complete(Downstream *downstream);
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virtual void on_handler_delete();
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virtual int on_downstream_reset(bool no_retry);
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bool get_flow_control() const;
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// Perform HTTP/2 upgrade from |upstream|. On success, this object
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// takes ownership of the |upstream|. This function returns 0 if it
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// succeeds, or -1.
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int upgrade_upstream(HttpsUpstream *upstream);
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void start_settings_timer();
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void stop_settings_timer();
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int consume(int32_t stream_id, size_t len);
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void log_response_headers(Downstream *downstream,
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const std::vector<nghttp2_nv> &nva) const;
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void start_downstream(Downstream *downstream);
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void initiate_downstream(Downstream *downstream);
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void submit_goaway();
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void check_shutdown();
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int prepare_push_promise(Downstream *downstream);
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int submit_push_promise(const std::string &path, Downstream *downstream);
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int on_request_headers(Downstream *downstream, const nghttp2_frame *frame);
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private:
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std::unique_ptr<HttpsUpstream> pre_upstream_;
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DownstreamQueue downstream_queue_;
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ev_timer settings_timer_;
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ev_timer shutdown_timer_;
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ev_prepare prep_;
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ClientHandler *handler_;
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nghttp2_session *session_;
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const uint8_t *data_pending_;
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size_t data_pendinglen_;
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bool flow_control_;
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bool shutdown_handled_;
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};
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nghttp2_session_callbacks *create_http2_upstream_callbacks();
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} // namespace shrpx
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#endif // SHRPX_HTTP2_UPSTREAM_H
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