152 lines
4.9 KiB
C++
152 lines
4.9 KiB
C++
/*
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* Spdylay - SPDY 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_DOWNSTREAM_H
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#define SHRPX_DOWNSTREAM_H
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#include "shrpx.h"
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#include <stdint.h>
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#include <vector>
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#include <string>
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#include <event.h>
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#include <event2/bufferevent.h>
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extern "C" {
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#include "htparse/htparse.h"
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}
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#include "shrpx_io_control.h"
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namespace shrpx {
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class Upstream;
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class DownstreamConnection;
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typedef std::vector<std::pair<std::string, std::string> > Headers;
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class Downstream {
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public:
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Downstream(Upstream *upstream, int stream_id, int priority);
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~Downstream();
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Upstream* get_upstream() const;
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int32_t get_stream_id() const;
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void set_priority(int pri);
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void pause_read(IOCtrlReason reason);
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bool resume_read(IOCtrlReason reason);
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void force_resume_read();
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void set_downstream_connection(DownstreamConnection *dconn);
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DownstreamConnection* get_downstream_connection();
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// Returns true if output buffer is full. If underlying dconn_ is
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// NULL, this function always returns false.
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bool get_output_buffer_full();
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int32_t get_recv_window_size() const;
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void inc_recv_window_size(int32_t amount);
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void set_recv_window_size(int32_t new_size);
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// Returns true if tunnel connection has been established.
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bool tunnel_established() const;
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// downstream request API
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const Headers& get_request_headers() const;
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void add_request_header(const std::string& name, const std::string& value);
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void set_last_request_header_value(const std::string& value);
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void set_request_method(const std::string& method);
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const std::string& get_request_method() const;
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void set_request_path(const std::string& path);
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const std::string& get_request_path() const;
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void set_request_major(int major);
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void set_request_minor(int minor);
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int get_request_major() const;
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int get_request_minor() const;
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int push_request_headers();
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bool get_chunked_request() const;
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bool get_request_connection_close() const;
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void set_request_connection_close(bool f);
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bool get_expect_100_continue() const;
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int push_upload_data_chunk(const uint8_t *data, size_t datalen);
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int end_upload_data();
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enum {
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INITIAL,
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HEADER_COMPLETE,
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MSG_COMPLETE,
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STREAM_CLOSED,
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CONNECT_FAIL,
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IDLE
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};
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void set_request_state(int state);
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int get_request_state() const;
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// downstream response API
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const Headers& get_response_headers() const;
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void add_response_header(const std::string& name, const std::string& value);
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void set_last_response_header_value(const std::string& value);
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unsigned int get_response_http_status() const;
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void set_response_http_status(unsigned int status);
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void set_response_major(int major);
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void set_response_minor(int minor);
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int get_response_major() const;
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int get_response_minor() const;
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int get_response_version() const;
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bool get_chunked_response() const;
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bool get_response_connection_close() const;
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void set_response_connection_close(bool f);
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int parse_http_response();
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void set_response_state(int state);
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int get_response_state() const;
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int init_response_body_buf();
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evbuffer* get_response_body_buf();
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private:
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Upstream *upstream_;
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DownstreamConnection *dconn_;
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int32_t stream_id_;
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int priority_;
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IOControl ioctrl_;
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int request_state_;
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std::string request_method_;
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std::string request_path_;
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int request_major_;
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int request_minor_;
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bool chunked_request_;
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bool request_connection_close_;
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bool request_expect_100_continue_;
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Headers request_headers_;
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int response_state_;
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unsigned int response_http_status_;
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int response_major_;
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int response_minor_;
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bool chunked_response_;
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bool response_connection_close_;
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Headers response_headers_;
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htparser *response_htp_;
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// This buffer is used to temporarily store downstream response
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// body. Spdylay reads data from this in the callback.
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evbuffer *response_body_buf_;
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int32_t recv_window_size_;
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};
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} // namespace shrpx
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#endif // SHRPX_DOWNSTREAM_H
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