//
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// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail 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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// Official repository: https://github.com/boostorg/beast
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//
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#ifndef BOOST_BEAST_HTTP_DETAIL_BASIC_PARSER_HPP
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#define BOOST_BEAST_HTTP_DETAIL_BASIC_PARSER_HPP
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#include <boost/beast/core/string.hpp>
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#include <boost/beast/core/detail/char_buffer.hpp>
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#include <boost/beast/http/error.hpp>
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#include <boost/beast/http/detail/rfc7230.hpp>
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#include <boost/config.hpp>
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#include <boost/version.hpp>
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#include <cstddef>
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#include <utility>
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namespace boost {
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namespace beast {
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namespace http {
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namespace detail {
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struct basic_parser_base
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{
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// limit on the size of the obs-fold buffer
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//
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// https://stackoverflow.com/questions/686217/maximum-on-http-header-values
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//
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static std::size_t constexpr max_obs_fold = 4096;
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enum class state
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{
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nothing_yet = 0,
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start_line,
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fields,
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body0,
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body,
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body_to_eof0,
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body_to_eof,
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chunk_header0,
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chunk_header,
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chunk_body,
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complete
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};
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static
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bool
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is_digit(char c)
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{
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return static_cast<unsigned char>(c-'0') < 10;
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}
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static
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bool
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is_print(char c)
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{
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return static_cast<unsigned char>(c-32) < 95;
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}
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BOOST_BEAST_DECL
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static
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char const*
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trim_front(char const* it, char const* end);
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BOOST_BEAST_DECL
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static
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char const*
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trim_back(
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char const* it, char const* first);
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static
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string_view
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make_string(char const* first, char const* last)
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{
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return {first, static_cast<
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std::size_t>(last - first)};
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}
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//--------------------------------------------------------------------------
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BOOST_BEAST_DECL
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static
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bool
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is_pathchar(char c);
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BOOST_BEAST_DECL
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static
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bool
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unhex(unsigned char& d, char c);
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BOOST_BEAST_DECL
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static
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std::pair<char const*, bool>
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find_fast(
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char const* buf,
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char const* buf_end,
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char const* ranges,
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size_t ranges_size);
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BOOST_BEAST_DECL
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static
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char const*
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find_eol(
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char const* it, char const* last,
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error_code& ec);
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BOOST_BEAST_DECL
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static
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char const*
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find_eom(char const* p, char const* last);
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//--------------------------------------------------------------------------
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BOOST_BEAST_DECL
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static
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char const*
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parse_token_to_eol(
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char const* p,
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char const* last,
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char const*& token_last,
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error_code& ec);
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BOOST_BEAST_DECL
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static
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bool
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parse_dec(string_view s, std::uint64_t& v);
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BOOST_BEAST_DECL
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static
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bool
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parse_hex(char const*& it, std::uint64_t& v);
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BOOST_BEAST_DECL
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static
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bool
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parse_crlf(char const*& it);
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BOOST_BEAST_DECL
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static
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void
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parse_method(
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char const*& it, char const* last,
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string_view& result, error_code& ec);
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BOOST_BEAST_DECL
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static
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void
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parse_target(
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char const*& it, char const* last,
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string_view& result, error_code& ec);
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BOOST_BEAST_DECL
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static
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void
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parse_version(
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char const*& it, char const* last,
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int& result, error_code& ec);
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BOOST_BEAST_DECL
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static
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void
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parse_status(
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char const*& it, char const* last,
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unsigned short& result, error_code& ec);
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BOOST_BEAST_DECL
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static
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void
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parse_reason(
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char const*& it, char const* last,
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string_view& result, error_code& ec);
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BOOST_BEAST_DECL
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static
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void
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parse_field(
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char const*& p,
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char const* last,
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string_view& name,
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string_view& value,
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beast::detail::char_buffer<max_obs_fold>& buf,
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error_code& ec);
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BOOST_BEAST_DECL
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static
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void
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parse_chunk_extensions(
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char const*& it,
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char const* last,
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error_code& ec);
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};
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} // detail
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} // http
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} // beast
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} // boost
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#ifdef BOOST_BEAST_HEADER_ONLY
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#include <boost/beast/http/detail/basic_parser.ipp>
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#endif
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#endif
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