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-//
-// request_parser.hpp
-// ~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef HTTP_SERVER4_REQUEST_PARSER_HPP
-#define HTTP_SERVER4_REQUEST_PARSER_HPP
-
-#include <string>
-#include <boost/logic/tribool.hpp>
-#include <boost/tuple/tuple.hpp>
-#include <boost/asio/coroutine.hpp>
-
-namespace http {
-namespace server4 {
-
-struct request;
-
-/// Parser for incoming requests.
-class request_parser : boost::asio::coroutine
-{
-public:
- /// Parse some data. The tribool return value is true when a complete request
- /// has been parsed, false if the data is invalid, indeterminate when more
- /// data is required. The InputIterator return value indicates how much of the
- /// input has been consumed.
- template <typename InputIterator>
- boost::tuple<boost::tribool, InputIterator> parse(request& req,
- InputIterator begin, InputIterator end)
- {
- while (begin != end)
- {
- boost::tribool result = consume(req, *begin++);
- if (result || !result)
- return boost::make_tuple(result, begin);
- }
- boost::tribool result = boost::indeterminate;
- return boost::make_tuple(result, begin);
- }
-
-private:
- /// The name of the content length header.
- static std::string content_length_name_;
-
- /// Content length as decoded from headers. Defaults to 0.
- std::size_t content_length_;
-
- /// Handle the next character of input.
- boost::tribool consume(request& req, char input);
-
- /// Check if a byte is an HTTP character.
- static bool is_char(int c);
-
- /// Check if a byte is an HTTP control character.
- static bool is_ctl(int c);
-
- /// Check if a byte is defined as an HTTP tspecial character.
- static bool is_tspecial(int c);
-
- /// Check if a byte is a digit.
- static bool is_digit(int c);
-
- /// Check if two characters are equal, without regard to case.
- static bool tolower_compare(char a, char b);
-
- /// Check whether the two request header names match.
- bool headers_equal(const std::string& a, const std::string& b);
-};
-
-} // namespace server4
-} // namespace http
-
-#endif // HTTP_SERVER4_REQUEST_PARSER_HPP