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New classes are introduced to represent HTTP messages and their associated bodies. The parser interface is reworked to use CRTP, error codes, and trait checks. New classes: * basic_headers Models field/value pairs in a HTTP message. * message Models a HTTP message, body behavior defined by template argument. Parsed message carries metadata generated during parsing. * parser Produces parsed messages. * empty_body, string_body, basic_streambuf_body Classes used to represent content bodies in various ways. New functions: * read, async_read, write, async_write Read and write HTTP messages on a socket. New concepts: * Body: Represents the HTTP Content-Body. * Field: A HTTP header field. * FieldSequence: A forward sequence of fields. * Reader: Parses a Body from a stream of bytes. * Writer: Serializes a Body to buffers. basic_parser changes: * add write methods which throw exceptions instead * error_code passed via parameter instead of return value * fold private member calls into existing callbacks * basic_parser uses CRTP instead of virtual members * add documentation on Derived requirements for CRTP impl/http-parser changes: * joyent renamed to nodejs to reflect upstream changes
129 lines
3.7 KiB
C++
129 lines
3.7 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef RIPPLE_SERVER_PLAINHTTPPEER_H_INCLUDED
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#define RIPPLE_SERVER_PLAINHTTPPEER_H_INCLUDED
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#include <ripple/server/impl/BaseHTTPPeer.h>
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#include <memory>
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namespace ripple {
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class PlainHTTPPeer
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: public BaseHTTPPeer<PlainHTTPPeer>
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, public std::enable_shared_from_this <PlainHTTPPeer>
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{
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private:
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friend class BaseHTTPPeer<PlainHTTPPeer>;
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using socket_type = boost::asio::ip::tcp::socket;
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socket_type stream_;
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public:
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template <class ConstBufferSequence>
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PlainHTTPPeer (Port const& port, Handler& handler,
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beast::Journal journal, endpoint_type remote_address,
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ConstBufferSequence const& buffers, socket_type&& socket);
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void
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run();
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private:
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void
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do_request();
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void
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do_close();
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};
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//------------------------------------------------------------------------------
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template <class ConstBufferSequence>
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PlainHTTPPeer::PlainHTTPPeer (Port const& port, Handler& handler,
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beast::Journal journal, endpoint_type remote_endpoint,
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ConstBufferSequence const& buffers, socket_type&& socket)
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: BaseHTTPPeer(port, handler, socket.get_io_service(),
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journal, remote_endpoint, buffers)
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, stream_(std::move(socket))
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{
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// Set TCP_NODELAY on loopback interfaces,
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// otherwise Nagle's algorithm makes Env
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// tests run slower on Linux systems.
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//
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if(remote_endpoint.address().is_loopback())
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stream_.set_option(boost::asio::ip::tcp::no_delay{true});
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}
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void
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PlainHTTPPeer::run ()
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{
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if (!handler_.onAccept (session(), remote_address_))
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{
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boost::asio::spawn (strand_,
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std::bind (&PlainHTTPPeer::do_close,
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shared_from_this()));
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return;
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}
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if (! stream_.is_open())
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return;
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boost::asio::spawn (strand_, std::bind (&PlainHTTPPeer::do_read,
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shared_from_this(), std::placeholders::_1));
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}
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void
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PlainHTTPPeer::do_request()
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{
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++request_count_;
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auto const what = handler_.onHandoff (session(),
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std::move(stream_), std::move(message_), remote_address_);
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if (what.moved)
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return;
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error_code ec;
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if (what.response)
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{
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// half-close on Connection: close
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if (! what.keep_alive)
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stream_.shutdown (socket_type::shutdown_receive, ec);
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if (ec)
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return fail (ec, "request");
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return write(what.response, what.keep_alive);
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}
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// Perform half-close when Connection: close and not SSL
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if (! is_keep_alive(message_))
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stream_.shutdown (socket_type::shutdown_receive, ec);
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if (ec)
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return fail (ec, "request");
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// legacy
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handler_.onRequest (session());
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}
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void
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PlainHTTPPeer::do_close()
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{
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error_code ec;
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stream_.shutdown (socket_type::shutdown_send, ec);
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}
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} // ripple
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#endif
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