152 lines
4.0 KiB
C++
152 lines
4.0 KiB
C++
/*
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* nghttp2 - HTTP/2.0 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_SESSION_H
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#define SHRPX_HTTP2_SESSION_H
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#include "shrpx.h"
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#include <set>
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#include <memory>
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#include <openssl/ssl.h>
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#include <event.h>
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#include <event2/bufferevent.h>
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#include <nghttp2/nghttp2.h>
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#include "http-parser/http_parser.h"
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namespace shrpx {
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class Http2DownstreamConnection;
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struct StreamData {
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Http2DownstreamConnection *dconn;
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};
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class Http2Session {
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public:
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Http2Session(event_base *evbase, SSL_CTX *ssl_ctx);
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~Http2Session();
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int init_notification();
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int check_cert();
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int disconnect();
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int initiate_connection();
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void add_downstream_connection(Http2DownstreamConnection *dconn);
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void remove_downstream_connection(Http2DownstreamConnection *dconn);
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void remove_stream_data(StreamData *sd);
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int submit_request(Http2DownstreamConnection *dconn,
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int32_t pri, const nghttp2_nv *nva, size_t nvlen,
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const nghttp2_data_provider *data_prd);
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int submit_rst_stream(int32_t stream_id, nghttp2_error_code error_code);
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// To send WINDOW_UPDATE for a connection, specify nullptr to
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// |dconn|.
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int submit_window_update(Http2DownstreamConnection *dconn, int32_t amount);
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int submit_priority(Http2DownstreamConnection *dconn, int32_t pri);
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int terminate_session(nghttp2_error_code error_code);
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nghttp2_session* get_session() const;
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bool get_flow_control() const;
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int resume_data(Http2DownstreamConnection *dconn);
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int on_connect();
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int on_read();
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int on_write();
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int send();
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int on_read_proxy();
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void clear_notify();
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void notify();
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bufferevent* get_bev() const;
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void unwrap_free_bev();
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int get_state() const;
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void set_state(int state);
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int start_settings_timer();
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void stop_settings_timer();
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size_t get_outbuf_length() const;
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enum {
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// Disconnected
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DISCONNECTED,
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// Connecting proxy and making CONNECT request
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PROXY_CONNECTING,
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// Tunnel is established with proxy
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PROXY_CONNECTED,
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// Establishing tunnel is failed
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PROXY_FAILED,
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// Connecting to downstream and/or performing SSL/TLS handshake
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CONNECTING,
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// Connected to downstream
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CONNECTED
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};
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static const size_t OUTBUF_MAX_THRES = 64*1024;
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private:
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std::set<Http2DownstreamConnection*> dconns_;
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std::set<StreamData*> streams_;
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// Used to parse the response from HTTP proxy
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std::unique_ptr<http_parser> proxy_htp_;
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event_base *evbase_;
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// NULL if no TLS is configured
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SSL_CTX *ssl_ctx_;
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SSL *ssl_;
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nghttp2_session *session_;
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bufferevent *bev_;
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bufferevent *wrbev_;
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bufferevent *rdbev_;
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event *settings_timerev_;
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// fd_ is used for proxy connection and no TLS connection. For
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// direct or TLS connection, it may be -1 even after connection is
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// established. Use bufferevent_getfd(bev_) to get file descriptor
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// in these cases.
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int fd_;
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int state_;
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bool notified_;
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bool flow_control_;
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};
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} // namespace shrpx
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#endif // SHRPX_HTTP2_SESSION_H
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