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........ r43377 | chris_kohlhoff | 2008-02-23 09:43:54 +1100 (Sat, 23 Feb 2008) | 2 lines Use the correct vector of timer queues when dispatching timers. ........ r43437 | chris_kohlhoff | 2008-02-29 23:57:57 +1100 (Fri, 29 Feb 2008) | 2 lines Add missing tie(). ........ r43469 | chris_kohlhoff | 2008-03-04 00:21:05 +1100 (Tue, 04 Mar 2008) | 4 lines Disable use of CancelIo by default, due to the possibility of silent failure on some system configurations. Swallow error returned by CancelIoEx if there are no operations to be cancelled. ........ r43470 | chris_kohlhoff | 2008-03-04 00:27:06 +1100 (Tue, 04 Mar 2008) | 2 lines Add missing 'boost_' prefix to helper namespace. ........ r43471 | chris_kohlhoff | 2008-03-04 00:36:35 +1100 (Tue, 04 Mar 2008) | 2 lines Regenerate documentation. ........ r43472 | chris_kohlhoff | 2008-03-04 01:05:35 +1100 (Tue, 04 Mar 2008) | 1 line Update copyright notices. ........ r43473 | chris_kohlhoff | 2008-03-04 01:13:01 +1100 (Tue, 04 Mar 2008) | 2 lines Update copyright notices. ........ r43569 | chris_kohlhoff | 2008-03-13 00:25:49 +1100 (Thu, 13 Mar 2008) | 4 lines Revert to having the windows-bug workaround (short timeout on GetQueuedCompletionStatus) on all threads as there are still scenarios where threads can get stuck indefinitely. ........ [SVN r43571]
97 lines
2.3 KiB
C++
97 lines
2.3 KiB
C++
//
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// request_parser.hpp
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// ~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef HTTP_REQUEST_PARSER_HPP
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#define HTTP_REQUEST_PARSER_HPP
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#include <boost/logic/tribool.hpp>
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#include <boost/tuple/tuple.hpp>
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namespace http {
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namespace server {
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struct request;
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/// Parser for incoming requests.
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class request_parser
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{
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public:
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/// Construct ready to parse the request method.
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request_parser();
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/// Reset to initial parser state.
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void reset();
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/// Parse some data. The tribool return value is true when a complete request
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/// has been parsed, false if the data is invalid, indeterminate when more
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/// data is required. The InputIterator return value indicates how much of the
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/// input has been consumed.
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template <typename InputIterator>
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boost::tuple<boost::tribool, InputIterator> parse(request& req,
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InputIterator begin, InputIterator end)
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{
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while (begin != end)
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{
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boost::tribool result = consume(req, *begin++);
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if (result || !result)
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return boost::make_tuple(result, begin);
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}
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boost::tribool result = boost::indeterminate;
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return boost::make_tuple(result, begin);
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}
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private:
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/// Handle the next character of input.
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boost::tribool consume(request& req, char input);
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/// Check if a byte is an HTTP character.
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static bool is_char(int c);
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/// Check if a byte is an HTTP control character.
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static bool is_ctl(int c);
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/// Check if a byte is defined as an HTTP tspecial character.
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static bool is_tspecial(int c);
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/// Check if a byte is a digit.
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static bool is_digit(int c);
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/// The current state of the parser.
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enum state
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{
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method_start,
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method,
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uri_start,
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uri,
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http_version_h,
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http_version_t_1,
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http_version_t_2,
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http_version_p,
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http_version_slash,
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http_version_major_start,
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http_version_major,
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http_version_minor_start,
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http_version_minor,
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expecting_newline_1,
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header_line_start,
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header_lws,
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header_name,
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space_before_header_value,
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header_value,
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expecting_newline_2,
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expecting_newline_3
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} state_;
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};
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} // namespace server
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} // namespace http
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#endif // HTTP_REQUEST_PARSER_HPP
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