mirror of
https://github.com/Xahau/xahaud.git
synced 2025-12-06 17:27:52 +00:00
af4fe24939
1ab7a2f Set version to 1.0.0-b22 2eb4b0c Fix code sample in websocket.qbk 58802f4 Fix typos in design.qbk 19dc4bb Update documentation examples 10dbc5b Disable Boost.Coroutine deprecation warning 01c76c7 Fix websocket stream read documentation d152c96 Update README.md example programs 995d86f Avoid copies in handler_alloc 851cb62 Add handler helpers 114175c Implement asio dealloc-before-invoke guarantee: 681db2e Add missing include 7db3c6e Fix broken Intellisense (MSVC) 09c183d Set version to 1.0.0-b21 1cb01fe Remove extraneous includes 62e65ed Set version to 1.0.0-b20 45eaa8c Increase utf8 checker code coverage 9ff1a27 Add zlib module: a0a3359 Refactor HTTP identifier names (API Change): 79be7f8 Set version to 1.0.0-b19 eda1120 Tidy up internal name 4130ad4 Better buffer_cat: f94f21d Fix consuming_buffers value_type (API Change): 2c524b4 prepared_buffers is private (API Change) df2a108 Fix prepare_buffers value_type: a4af9d6 Use boost::lexical_cast instead of std::to_string 62d670b Fix with_body example: a63bd84 Increase code coverage 84a6775 Boost library min/max guidance: 02feea5 Add read, async_read for message_headers: f224585 Add write, async_write, operator<< for message_headers: ea48bcf Make chunk_encode public: f6dd744 Refactor message and message_headers declarations: 9fd8aed Move sync_ostream to core/detail c98b2d3 Optimize mask operations d4dfc1a Optimize utf8 validation 7b4de4b Set version to 1.0.0-b18 feb5204 Add websocket::stream pong and async_pong d4ffde5 Close connection during async_read on close frame: 644d518 Move clamp to core 427ba38 Fix write_frame masking and auto-fragment handling 54a51b1 Write buffer option does not change capacity 591dbc0 Meet DynamicBuffer requirements for static_streambuf 46d5e72 Reorganize source files and definitions efa4b8f Override incremental link flags: eef6e86 Higher optimization settings for MSVC builds b6f3a36 Check invariants in parse_op: 47b0fa6 Remove unused field in test 8b8e57e unit_test improvements: e907252 Clean up message docs 1e3543f Set version to 1.0.0-b17 de97a69 Trim unused code 796b484 Doc fixes 95c37e2 Fix unused parameter warnings and missing includes: 8b0d285 Refactor read_size_helper 97a9dcb Improve websocket example in README.md 236caef Engaged invokable is destructible: d107ba1 Add headers_parser: 2f90627 Fix handling of body_what::pause in basic_parser_v1 9353d04 Add basic_parser_v1::reset 658e03c Add on_body_what parser callback (API Change): 50bd446 Fix parser traits detection (API Change): df8d306 Tidy up documentation: 47105f8 Tidy up basic_headers for documentation ada1f60 Refine message class hierarchy: cf43f51 Rework HTTP concepts (API Change): 8a261ca HTTP Reader (API Change): 183055a Parser callbacks may not throw (API Change) ebebe52 Add basic_streambuf::alloc_size c9cd171 Fix basic_streambuf::capacity 0eb0e48 Tidying: c5c436d Change implicit_value to default_value 01f939d Set version to 1.0.0-b16 206d0a9 Fix websocket failure tests 6b4fb28 Fix Writer exemplar in docs 4224a3a Relax ForwardIterator requirements in FieldSequence 14d7f8d Refactor base_parser_v1 callback traits: d812344 Add pause option to on_headers interface: c59bd53 Improve first line serialization 78ff20b Constrain parser_v1 constructor 2765a67 Refine Parser concept: c329d33 Fix on_headers called twice from basic_parser_v1 55c4c93 Put back missing Design section in docs 90cec54 Make auto_fragment a boolean option 03642fb Rename to write_buffer_size 0ca8964 Frame processing routines are member functions d99dfb3 Make value optional in param-list 325f579 Set version to 1.0.0-b15 c54762a Fix handling empty HTTP headers in parser_v1.hpp c39cc06 Regression test for empty headers 60e637b Tidy up error types: d54d597 Tidy up DynamicBuffer requirements 707fb5e Fix doc reference section 38af0f7 Fix message_v1 constructor 027c4e8 Add Secure WebSocket example 5baaa49 Add HTTPS example 076456b rfc7230 section 3.3.2 compliance a09a044 Use bin/sh 1ff192d Update README.md for CppCon 2016 presentation 70b8555 Set version to 1.0.0-b14 b4a8342 Update and tidy documentation 8607af5 Update README.md 4abb43e Use BOOST_ASSERT b5bffee Don't rely on undefined behavior 8ee7a21 Better WebSocket decorator: 38f0d95 Update build scripts for MSVC, MinGW 2a5b116 Fix error handling in server examples 4c7065a Add missing rebind to handler_alloc git-subtree-dir: src/beast git-subtree-split: 1ab7a2f04ca9a0b35f2032877cab78d94e96ebad
1287 lines
38 KiB
C++
1287 lines
38 KiB
C++
//
|
|
// Copyright (c) 2013-2016 Vinnie Falco (vinnie dot falco at gmail 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 BEAST_HTTP_IMPL_BASIC_PARSER_V1_IPP
|
|
#define BEAST_HTTP_IMPL_BASIC_PARSER_V1_IPP
|
|
|
|
#include <beast/http/detail/rfc7230.hpp>
|
|
#include <beast/core/buffer_concepts.hpp>
|
|
#include <boost/assert.hpp>
|
|
|
|
namespace beast {
|
|
namespace http {
|
|
|
|
/* Based on src/http/ngx_http_parse.c from NGINX copyright Igor Sysoev
|
|
*
|
|
* Additional changes are licensed under the same terms as NGINX and
|
|
* copyright Joyent, Inc. and other Node contributors. All rights reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*/
|
|
/* This code is a modified version of nodejs/http-parser, copyright above:
|
|
https://github.com/nodejs/http-parser
|
|
*/
|
|
|
|
template<bool isRequest, class Derived>
|
|
basic_parser_v1<isRequest, Derived>::
|
|
basic_parser_v1()
|
|
{
|
|
init();
|
|
}
|
|
|
|
template<bool isRequest, class Derived>
|
|
template<class OtherDerived>
|
|
basic_parser_v1<isRequest, Derived>::
|
|
basic_parser_v1(basic_parser_v1<
|
|
isRequest, OtherDerived> const& other)
|
|
: h_max_(other.h_max_)
|
|
, h_left_(other.h_left_)
|
|
, b_max_(other.b_max_)
|
|
, b_left_(other.b_left_)
|
|
, content_length_(other.content_length_)
|
|
, cb_(nullptr)
|
|
, s_(other.s_)
|
|
, flags_(other.flags_)
|
|
, fs_(other.fs_)
|
|
, pos_(other.pos_)
|
|
, http_major_(other.http_major_)
|
|
, http_minor_(other.http_minor_)
|
|
, status_code_(other.status_code_)
|
|
, upgrade_(other.upgrade_)
|
|
{
|
|
BOOST_ASSERT(! other.cb_);
|
|
}
|
|
|
|
template<bool isRequest, class Derived>
|
|
template<class OtherDerived>
|
|
auto
|
|
basic_parser_v1<isRequest, Derived>::
|
|
operator=(basic_parser_v1<
|
|
isRequest, OtherDerived> const& other) ->
|
|
basic_parser_v1&
|
|
{
|
|
BOOST_ASSERT(! other.cb_);
|
|
h_max_ = other.h_max_;
|
|
h_left_ = other.h_left_;
|
|
b_max_ = other.b_max_;
|
|
b_left_ = other.b_left_;
|
|
content_length_ = other.content_length_;
|
|
cb_ = nullptr;
|
|
s_ = other.s_;
|
|
flags_ = other.flags_;
|
|
fs_ = other.fs_;
|
|
pos_ = other.pos_;
|
|
http_major_ = other.http_major_;
|
|
http_minor_ = other.http_minor_;
|
|
status_code_ = other.status_code_;
|
|
upgrade_ = other.upgrade_;
|
|
return *this;
|
|
}
|
|
|
|
template<bool isRequest, class Derived>
|
|
bool
|
|
basic_parser_v1<isRequest, Derived>::
|
|
keep_alive() const
|
|
{
|
|
if(http_major_ >= 1 && http_minor_ >= 1)
|
|
{
|
|
if(flags_ & parse_flag::connection_close)
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
if(! (flags_ & parse_flag::connection_keep_alive))
|
|
return false;
|
|
}
|
|
return ! needs_eof();
|
|
}
|
|
|
|
template<bool isRequest, class Derived>
|
|
template<class ConstBufferSequence>
|
|
typename std::enable_if<
|
|
! std::is_convertible<ConstBufferSequence,
|
|
boost::asio::const_buffer>::value,
|
|
std::size_t>::type
|
|
basic_parser_v1<isRequest, Derived>::
|
|
write(ConstBufferSequence const& buffers, error_code& ec)
|
|
{
|
|
static_assert(is_ConstBufferSequence<ConstBufferSequence>::value,
|
|
"ConstBufferSequence requirements not met");
|
|
std::size_t used = 0;
|
|
for(auto const& buffer : buffers)
|
|
{
|
|
used += write(buffer, ec);
|
|
if(ec)
|
|
break;
|
|
}
|
|
return used;
|
|
}
|
|
|
|
template<bool isRequest, class Derived>
|
|
std::size_t
|
|
basic_parser_v1<isRequest, Derived>::
|
|
write(boost::asio::const_buffer const& buffer, error_code& ec)
|
|
{
|
|
using beast::http::detail::is_digit;
|
|
using beast::http::detail::is_tchar;
|
|
using beast::http::detail::is_text;
|
|
using beast::http::detail::to_field_char;
|
|
using beast::http::detail::to_value_char;
|
|
using beast::http::detail::unhex;
|
|
using boost::asio::buffer_cast;
|
|
using boost::asio::buffer_size;
|
|
|
|
auto const data = buffer_cast<void const*>(buffer);
|
|
auto const size = buffer_size(buffer);
|
|
|
|
if(size == 0 && s_ != s_dead)
|
|
return 0;
|
|
|
|
auto begin =
|
|
reinterpret_cast<char const*>(data);
|
|
auto const end = begin + size;
|
|
auto p = begin;
|
|
auto used = [&]
|
|
{
|
|
return p - reinterpret_cast<char const*>(data);
|
|
};
|
|
auto err = [&](parse_error ev)
|
|
{
|
|
ec = ev;
|
|
s_ = s_dead;
|
|
return used();
|
|
};
|
|
auto errc = [&]
|
|
{
|
|
s_ = s_dead;
|
|
return used();
|
|
};
|
|
auto piece = [&]
|
|
{
|
|
return boost::string_ref{
|
|
begin, static_cast<std::size_t>(p - begin)};
|
|
};
|
|
auto cb = [&](pmf_t next)
|
|
{
|
|
if(cb_ && p != begin)
|
|
{
|
|
(this->*cb_)(ec, piece());
|
|
if(ec)
|
|
return true; // error
|
|
}
|
|
cb_ = next;
|
|
if(cb_)
|
|
begin = p;
|
|
return false;
|
|
};
|
|
for(;p != end; ++p)
|
|
{
|
|
unsigned char ch = *p;
|
|
redo:
|
|
switch(s_)
|
|
{
|
|
case s_dead:
|
|
case s_closed_complete:
|
|
return err(parse_error::connection_closed);
|
|
break;
|
|
|
|
case s_req_start:
|
|
flags_ = 0;
|
|
cb_ = nullptr;
|
|
content_length_ = no_content_length;
|
|
s_ = s_req_method0;
|
|
goto redo;
|
|
|
|
case s_req_method0:
|
|
if(! is_tchar(ch))
|
|
return err(parse_error::bad_method);
|
|
call_on_start(ec);
|
|
if(ec)
|
|
return errc();
|
|
BOOST_ASSERT(! cb_);
|
|
cb(&self::call_on_method);
|
|
s_ = s_req_method;
|
|
break;
|
|
|
|
case s_req_method:
|
|
if(ch == ' ')
|
|
{
|
|
if(cb(nullptr))
|
|
return errc();
|
|
s_ = s_req_url0;
|
|
break;
|
|
}
|
|
if(! is_tchar(ch))
|
|
return err(parse_error::bad_method);
|
|
break;
|
|
|
|
case s_req_url0:
|
|
{
|
|
if(ch == ' ')
|
|
return err(parse_error::bad_uri);
|
|
// VFALCO TODO Better checking for valid URL characters
|
|
if(! is_text(ch))
|
|
return err(parse_error::bad_uri);
|
|
BOOST_ASSERT(! cb_);
|
|
cb(&self::call_on_uri);
|
|
s_ = s_req_url;
|
|
break;
|
|
}
|
|
|
|
case s_req_url:
|
|
if(ch == ' ')
|
|
{
|
|
if(cb(nullptr))
|
|
return errc();
|
|
s_ = s_req_http;
|
|
break;
|
|
}
|
|
// VFALCO TODO Better checking for valid URL characters
|
|
if(! is_text(ch))
|
|
return err(parse_error::bad_uri);
|
|
break;
|
|
|
|
case s_req_http:
|
|
if(ch != 'H')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_req_http_H;
|
|
break;
|
|
|
|
case s_req_http_H:
|
|
if(ch != 'T')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_req_http_HT;
|
|
break;
|
|
|
|
case s_req_http_HT:
|
|
if(ch != 'T')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_req_http_HTT;
|
|
break;
|
|
|
|
case s_req_http_HTT:
|
|
if(ch != 'P')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_req_http_HTTP;
|
|
break;
|
|
|
|
case s_req_http_HTTP:
|
|
if(ch != '/')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_req_major;
|
|
break;
|
|
|
|
case s_req_major:
|
|
if(! is_digit(ch))
|
|
return err(parse_error::bad_version);
|
|
http_major_ = ch - '0';
|
|
s_ = s_req_dot;
|
|
break;
|
|
|
|
case s_req_dot:
|
|
if(ch != '.')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_req_minor;
|
|
break;
|
|
|
|
case s_req_minor:
|
|
if(! is_digit(ch))
|
|
return err(parse_error::bad_version);
|
|
http_minor_ = ch - '0';
|
|
s_ = s_req_cr;
|
|
break;
|
|
|
|
case s_req_cr:
|
|
if(ch != '\r')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_req_lf;
|
|
break;
|
|
|
|
case s_req_lf:
|
|
if(ch != '\n')
|
|
return err(parse_error::bad_crlf);
|
|
call_on_request(ec);
|
|
if(ec)
|
|
return errc();
|
|
s_ = s_header_name0;
|
|
break;
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
case s_res_start:
|
|
flags_ = 0;
|
|
cb_ = nullptr;
|
|
content_length_ = no_content_length;
|
|
if(ch != 'H')
|
|
return err(parse_error::bad_version);
|
|
call_on_start(ec);
|
|
if(ec)
|
|
return errc();
|
|
s_ = s_res_H;
|
|
break;
|
|
|
|
case s_res_H:
|
|
if(ch != 'T')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_res_HT;
|
|
break;
|
|
|
|
case s_res_HT:
|
|
if(ch != 'T')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_res_HTT;
|
|
break;
|
|
|
|
case s_res_HTT:
|
|
if(ch != 'P')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_res_HTTP;
|
|
break;
|
|
|
|
case s_res_HTTP:
|
|
if(ch != '/')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_res_major;
|
|
break;
|
|
|
|
case s_res_major:
|
|
if(! is_digit(ch))
|
|
return err(parse_error::bad_version);
|
|
http_major_ = ch - '0';
|
|
s_ = s_res_dot;
|
|
break;
|
|
|
|
case s_res_dot:
|
|
if(ch != '.')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_res_minor;
|
|
break;
|
|
|
|
case s_res_minor:
|
|
if(! is_digit(ch))
|
|
return err(parse_error::bad_version);
|
|
http_minor_ = ch - '0';
|
|
s_ = s_res_space_1;
|
|
break;
|
|
|
|
case s_res_space_1:
|
|
if(ch != ' ')
|
|
return err(parse_error::bad_version);
|
|
s_ = s_res_status0;
|
|
break;
|
|
|
|
case s_res_status0:
|
|
if(! is_digit(ch))
|
|
return err(parse_error::bad_status);
|
|
status_code_ = ch - '0';
|
|
s_ = s_res_status1;
|
|
break;
|
|
|
|
case s_res_status1:
|
|
if(! is_digit(ch))
|
|
return err(parse_error::bad_status);
|
|
status_code_ = status_code_ * 10 + ch - '0';
|
|
s_ = s_res_status2;
|
|
break;
|
|
|
|
case s_res_status2:
|
|
if(! is_digit(ch))
|
|
return err(parse_error::bad_status);
|
|
status_code_ = status_code_ * 10 + ch - '0';
|
|
s_ = s_res_space_2;
|
|
break;
|
|
|
|
case s_res_space_2:
|
|
if(ch != ' ')
|
|
return err(parse_error::bad_status);
|
|
s_ = s_res_reason0;
|
|
break;
|
|
|
|
case s_res_reason0:
|
|
if(ch == '\r')
|
|
{
|
|
s_ = s_res_line_lf;
|
|
break;
|
|
}
|
|
if(! is_text(ch))
|
|
return err(parse_error::bad_reason);
|
|
BOOST_ASSERT(! cb_);
|
|
cb(&self::call_on_reason);
|
|
s_ = s_res_reason;
|
|
break;
|
|
|
|
case s_res_reason:
|
|
if(ch == '\r')
|
|
{
|
|
if(cb(nullptr))
|
|
return errc();
|
|
s_ = s_res_line_lf;
|
|
break;
|
|
}
|
|
if(! is_text(ch))
|
|
return err(parse_error::bad_reason);
|
|
break;
|
|
|
|
case s_res_line_lf:
|
|
if(ch != '\n')
|
|
return err(parse_error::bad_crlf);
|
|
s_ = s_res_line_done;
|
|
break;
|
|
|
|
case s_res_line_done:
|
|
call_on_response(ec);
|
|
if(ec)
|
|
return errc();
|
|
s_ = s_header_name0;
|
|
goto redo;
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
case s_header_name0:
|
|
{
|
|
if(ch == '\r')
|
|
{
|
|
s_ = s_headers_almost_done;
|
|
break;
|
|
}
|
|
auto c = to_field_char(ch);
|
|
if(! c)
|
|
return err(parse_error::bad_field);
|
|
switch(c)
|
|
{
|
|
case 'c': pos_ = 0; fs_ = h_C; break;
|
|
case 'p': pos_ = 0; fs_ = h_matching_proxy_connection; break;
|
|
case 't': pos_ = 0; fs_ = h_matching_transfer_encoding; break;
|
|
case 'u': pos_ = 0; fs_ = h_matching_upgrade; break;
|
|
default:
|
|
fs_ = h_general;
|
|
break;
|
|
}
|
|
BOOST_ASSERT(! cb_);
|
|
cb(&self::call_on_field);
|
|
s_ = s_header_name;
|
|
break;
|
|
}
|
|
|
|
case s_header_name:
|
|
{
|
|
for(; p != end; ++p)
|
|
{
|
|
ch = *p;
|
|
auto c = to_field_char(ch);
|
|
if(! c)
|
|
break;
|
|
switch(fs_)
|
|
{
|
|
default:
|
|
case h_general:
|
|
break;
|
|
case h_C: ++pos_; fs_ = c=='o' ? h_CO : h_general; break;
|
|
case h_CO: ++pos_; fs_ = c=='n' ? h_CON : h_general; break;
|
|
case h_CON:
|
|
++pos_;
|
|
switch(c)
|
|
{
|
|
case 'n': fs_ = h_matching_connection; break;
|
|
case 't': fs_ = h_matching_content_length; break;
|
|
default:
|
|
fs_ = h_general;
|
|
}
|
|
break;
|
|
|
|
case h_matching_connection:
|
|
++pos_;
|
|
if(c != detail::parser_str::connection[pos_])
|
|
fs_ = h_general;
|
|
else if(pos_ == sizeof(detail::parser_str::connection)-2)
|
|
fs_ = h_connection;
|
|
break;
|
|
|
|
case h_matching_proxy_connection:
|
|
++pos_;
|
|
if(c != detail::parser_str::proxy_connection[pos_])
|
|
fs_ = h_general;
|
|
else if(pos_ == sizeof(detail::parser_str::proxy_connection)-2)
|
|
fs_ = h_connection;
|
|
break;
|
|
|
|
case h_matching_content_length:
|
|
++pos_;
|
|
if(c != detail::parser_str::content_length[pos_])
|
|
fs_ = h_general;
|
|
else if(pos_ == sizeof(detail::parser_str::content_length)-2)
|
|
{
|
|
if(flags_ & parse_flag::contentlength)
|
|
return err(parse_error::bad_content_length);
|
|
fs_ = h_content_length0;
|
|
}
|
|
break;
|
|
|
|
case h_matching_transfer_encoding:
|
|
++pos_;
|
|
if(c != detail::parser_str::transfer_encoding[pos_])
|
|
fs_ = h_general;
|
|
else if(pos_ == sizeof(detail::parser_str::transfer_encoding)-2)
|
|
fs_ = h_transfer_encoding;
|
|
break;
|
|
|
|
case h_matching_upgrade:
|
|
++pos_;
|
|
if(c != detail::parser_str::upgrade[pos_])
|
|
fs_ = h_general;
|
|
else if(pos_ == sizeof(detail::parser_str::upgrade)-2)
|
|
fs_ = h_upgrade;
|
|
break;
|
|
|
|
case h_connection:
|
|
case h_content_length0:
|
|
case h_transfer_encoding:
|
|
case h_upgrade:
|
|
fs_ = h_general;
|
|
break;
|
|
}
|
|
}
|
|
if(p == end)
|
|
{
|
|
--p;
|
|
break;
|
|
}
|
|
if(ch == ':')
|
|
{
|
|
if(cb(nullptr))
|
|
return errc();
|
|
s_ = s_header_value0;
|
|
break;
|
|
}
|
|
return err(parse_error::bad_field);
|
|
}
|
|
/*
|
|
header-field = field-name ":" OWS field-value OWS
|
|
field-name = token
|
|
field-value = *( field-content / obs-fold )
|
|
field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
|
|
field-vchar = VCHAR / obs-text
|
|
obs-fold = CRLF 1*( SP / HTAB )
|
|
; obsolete line folding
|
|
*/
|
|
case s_header_value0:
|
|
if(ch == ' ' || ch == '\t')
|
|
break;
|
|
if(ch == '\r')
|
|
{
|
|
s_ = s_header_value0_lf;
|
|
break;
|
|
}
|
|
if(fs_ == h_content_length0)
|
|
{
|
|
content_length_ = 0;
|
|
flags_ |= parse_flag::contentlength;
|
|
}
|
|
BOOST_ASSERT(! cb_);
|
|
cb(&self::call_on_value);
|
|
s_ = s_header_value;
|
|
// fall through
|
|
|
|
case s_header_value:
|
|
{
|
|
for(; p != end; ++p)
|
|
{
|
|
ch = *p;
|
|
if(ch == '\r')
|
|
{
|
|
if(cb(nullptr))
|
|
return errc();
|
|
s_ = s_header_value_lf;
|
|
break;
|
|
}
|
|
auto const c = to_value_char(ch);
|
|
if(! c)
|
|
return err(parse_error::bad_value);
|
|
switch(fs_)
|
|
{
|
|
case h_general:
|
|
default:
|
|
break;
|
|
|
|
case h_connection:
|
|
switch(c)
|
|
{
|
|
case 'k':
|
|
pos_ = 0;
|
|
fs_ = h_matching_connection_keep_alive;
|
|
break;
|
|
case 'c':
|
|
pos_ = 0;
|
|
fs_ = h_matching_connection_close;
|
|
break;
|
|
case 'u':
|
|
pos_ = 0;
|
|
fs_ = h_matching_connection_upgrade;
|
|
break;
|
|
default:
|
|
if(ch == ' ' || ch == '\t' || ch == ',')
|
|
break;
|
|
if(! is_tchar(ch))
|
|
return err(parse_error::bad_value);
|
|
fs_ = h_connection_token;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case h_matching_connection_keep_alive:
|
|
++pos_;
|
|
if(c != detail::parser_str::keep_alive[pos_])
|
|
fs_ = h_connection_token;
|
|
else if(pos_ == sizeof(detail::parser_str::keep_alive)- 2)
|
|
fs_ = h_connection_keep_alive;
|
|
break;
|
|
|
|
case h_matching_connection_close:
|
|
++pos_;
|
|
if(c != detail::parser_str::close[pos_])
|
|
fs_ = h_connection_token;
|
|
else if(pos_ == sizeof(detail::parser_str::close)-2)
|
|
fs_ = h_connection_close;
|
|
break;
|
|
|
|
case h_matching_connection_upgrade:
|
|
++pos_;
|
|
if(c != detail::parser_str::upgrade[pos_])
|
|
fs_ = h_connection_token;
|
|
else if(pos_ == sizeof(detail::parser_str::upgrade)-2)
|
|
fs_ = h_connection_upgrade;
|
|
break;
|
|
|
|
case h_connection_close:
|
|
if(ch == ',')
|
|
{
|
|
fs_ = h_connection;
|
|
flags_ |= parse_flag::connection_close;
|
|
}
|
|
else if(ch == ' ' || ch == '\t')
|
|
fs_ = h_connection_close_ows;
|
|
else if(is_tchar(ch))
|
|
fs_ = h_connection_token;
|
|
else
|
|
return err(parse_error::bad_value);
|
|
break;
|
|
|
|
case h_connection_close_ows:
|
|
if(ch == ',')
|
|
{
|
|
fs_ = h_connection;
|
|
flags_ |= parse_flag::connection_close;
|
|
break;
|
|
}
|
|
if(ch == ' ' || ch == '\t')
|
|
break;
|
|
return err(parse_error::bad_value);
|
|
|
|
case h_connection_keep_alive:
|
|
if(ch == ',')
|
|
{
|
|
fs_ = h_connection;
|
|
flags_ |= parse_flag::connection_keep_alive;
|
|
}
|
|
else if(ch == ' ' || ch == '\t')
|
|
fs_ = h_connection_keep_alive_ows;
|
|
else if(is_tchar(ch))
|
|
fs_ = h_connection_token;
|
|
else
|
|
return err(parse_error::bad_value);
|
|
break;
|
|
|
|
case h_connection_keep_alive_ows:
|
|
if(ch == ',')
|
|
{
|
|
fs_ = h_connection;
|
|
flags_ |= parse_flag::connection_keep_alive;
|
|
break;
|
|
}
|
|
if(ch == ' ' || ch == '\t')
|
|
break;
|
|
return err(parse_error::bad_value);
|
|
|
|
case h_connection_upgrade:
|
|
if(ch == ',')
|
|
{
|
|
fs_ = h_connection;
|
|
flags_ |= parse_flag::connection_upgrade;
|
|
}
|
|
else if(ch == ' ' || ch == '\t')
|
|
fs_ = h_connection_upgrade_ows;
|
|
else if(is_tchar(ch))
|
|
fs_ = h_connection_token;
|
|
else
|
|
return err(parse_error::bad_value);
|
|
break;
|
|
|
|
case h_connection_upgrade_ows:
|
|
if(ch == ',')
|
|
{
|
|
fs_ = h_connection;
|
|
flags_ |= parse_flag::connection_upgrade;
|
|
break;
|
|
}
|
|
if(ch == ' ' || ch == '\t')
|
|
break;
|
|
return err(parse_error::bad_value);
|
|
|
|
case h_connection_token:
|
|
if(ch == ',')
|
|
fs_ = h_connection;
|
|
else if(ch == ' ' || ch == '\t')
|
|
fs_ = h_connection_token_ows;
|
|
else if(! is_tchar(ch))
|
|
return err(parse_error::bad_value);
|
|
break;
|
|
|
|
case h_connection_token_ows:
|
|
if(ch == ',')
|
|
{
|
|
fs_ = h_connection;
|
|
break;
|
|
}
|
|
if(ch == ' ' || ch == '\t')
|
|
break;
|
|
return err(parse_error::bad_value);
|
|
|
|
case h_content_length0:
|
|
if(! is_digit(ch))
|
|
return err(parse_error::bad_content_length);
|
|
content_length_ = ch - '0';
|
|
fs_ = h_content_length;
|
|
break;
|
|
|
|
case h_content_length:
|
|
if(ch == ' ' || ch == '\t')
|
|
{
|
|
fs_ = h_content_length_ows;
|
|
break;
|
|
}
|
|
if(! is_digit(ch))
|
|
return err(parse_error::bad_content_length);
|
|
if(content_length_ > (no_content_length - 10) / 10)
|
|
return err(parse_error::bad_content_length);
|
|
content_length_ =
|
|
content_length_ * 10 + ch - '0';
|
|
break;
|
|
|
|
case h_content_length_ows:
|
|
if(ch != ' ' && ch != '\t')
|
|
return err(parse_error::bad_content_length);
|
|
break;
|
|
|
|
case h_transfer_encoding:
|
|
if(c == 'c')
|
|
{
|
|
pos_ = 0;
|
|
fs_ = h_matching_transfer_encoding_chunked;
|
|
}
|
|
else if(c != ' ' && c != '\t' && c != ',')
|
|
{
|
|
fs_ = h_matching_transfer_encoding_general;
|
|
}
|
|
break;
|
|
|
|
case h_matching_transfer_encoding_chunked:
|
|
++pos_;
|
|
if(c != detail::parser_str::chunked[pos_])
|
|
fs_ = h_matching_transfer_encoding_general;
|
|
else if(pos_ == sizeof(detail::parser_str::chunked)-2)
|
|
fs_ = h_transfer_encoding_chunked;
|
|
break;
|
|
|
|
case h_matching_transfer_encoding_general:
|
|
if(c == ',')
|
|
fs_ = h_transfer_encoding;
|
|
break;
|
|
|
|
case h_transfer_encoding_chunked:
|
|
if(c != ' ' && c != '\t' && c != ',')
|
|
fs_ = h_transfer_encoding;
|
|
break;
|
|
|
|
case h_upgrade:
|
|
flags_ |= parse_flag::upgrade;
|
|
fs_ = h_general;
|
|
break;
|
|
}
|
|
}
|
|
if(p == end)
|
|
--p;
|
|
break;
|
|
}
|
|
|
|
case s_header_value0_lf:
|
|
if(ch != '\n')
|
|
return err(parse_error::bad_crlf);
|
|
s_ = s_header_value0_almost_done;
|
|
break;
|
|
|
|
case s_header_value0_almost_done:
|
|
if(ch == ' ' || ch == '\t')
|
|
{
|
|
s_ = s_header_value0;
|
|
break;
|
|
}
|
|
if(fs_ == h_content_length0)
|
|
return err(parse_error::bad_content_length);
|
|
if(fs_ == h_upgrade)
|
|
flags_ |= parse_flag::upgrade;
|
|
BOOST_ASSERT(! cb_);
|
|
call_on_value(ec, boost::string_ref{"", 0});
|
|
if(ec)
|
|
return errc();
|
|
s_ = s_header_name0;
|
|
goto redo;
|
|
|
|
case s_header_value_lf:
|
|
if(ch != '\n')
|
|
return err(parse_error::bad_crlf);
|
|
s_ = s_header_value_almost_done;
|
|
break;
|
|
|
|
case s_header_value_almost_done:
|
|
if(ch == ' ' || ch == '\t')
|
|
{
|
|
switch(fs_)
|
|
{
|
|
case h_matching_connection_keep_alive:
|
|
case h_matching_connection_close:
|
|
case h_matching_connection_upgrade:
|
|
fs_ = h_connection_token_ows;
|
|
break;
|
|
|
|
case h_connection_close:
|
|
fs_ = h_connection_close_ows;
|
|
break;
|
|
|
|
case h_connection_keep_alive:
|
|
fs_ = h_connection_keep_alive_ows;
|
|
break;
|
|
|
|
case h_connection_upgrade:
|
|
fs_ = h_connection_upgrade_ows;
|
|
break;
|
|
|
|
case h_content_length:
|
|
fs_ = h_content_length_ows;
|
|
break;
|
|
|
|
case h_matching_transfer_encoding_chunked:
|
|
fs_ = h_matching_transfer_encoding_general;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
call_on_value(ec, boost::string_ref(" ", 1));
|
|
s_ = s_header_value_unfold;
|
|
break;
|
|
}
|
|
switch(fs_)
|
|
{
|
|
case h_connection_keep_alive:
|
|
case h_connection_keep_alive_ows:
|
|
flags_ |= parse_flag::connection_keep_alive;
|
|
break;
|
|
case h_connection_close:
|
|
case h_connection_close_ows:
|
|
flags_ |= parse_flag::connection_close;
|
|
break;
|
|
|
|
case h_connection_upgrade:
|
|
case h_connection_upgrade_ows:
|
|
flags_ |= parse_flag::connection_upgrade;
|
|
break;
|
|
|
|
case h_transfer_encoding_chunked:
|
|
case h_transfer_encoding_chunked_ows:
|
|
flags_ |= parse_flag::chunked;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
s_ = s_header_name0;
|
|
goto redo;
|
|
|
|
case s_header_value_unfold:
|
|
BOOST_ASSERT(! cb_);
|
|
cb(&self::call_on_value);
|
|
s_ = s_header_value;
|
|
goto redo;
|
|
|
|
case s_headers_almost_done:
|
|
{
|
|
if(ch != '\n')
|
|
return err(parse_error::bad_crlf);
|
|
if(flags_ & parse_flag::trailing)
|
|
{
|
|
//if(cb(&self::call_on_chunk_complete)) return errc();
|
|
s_ = s_complete;
|
|
goto redo;
|
|
}
|
|
if((flags_ & parse_flag::chunked) && (flags_ & parse_flag::contentlength))
|
|
return err(parse_error::illegal_content_length);
|
|
upgrade_ = ((flags_ & (parse_flag::upgrade | parse_flag::connection_upgrade)) ==
|
|
(parse_flag::upgrade | parse_flag::connection_upgrade)) /*|| method == "connect"*/;
|
|
call_on_headers(ec);
|
|
if(ec)
|
|
return errc();
|
|
auto const what = call_on_body_what(ec);
|
|
if(ec)
|
|
return errc();
|
|
switch(what)
|
|
{
|
|
case body_what::normal:
|
|
break;
|
|
case body_what::upgrade:
|
|
upgrade_ = true;
|
|
// fall through
|
|
case body_what::skip:
|
|
flags_ |= parse_flag::skipbody;
|
|
break;
|
|
case body_what::pause:
|
|
++p;
|
|
s_ = s_body_pause;
|
|
return used();
|
|
}
|
|
s_ = s_headers_done;
|
|
goto redo;
|
|
}
|
|
|
|
case s_body_pause:
|
|
{
|
|
auto const what = call_on_body_what(ec);
|
|
if(ec)
|
|
return errc();
|
|
switch(what)
|
|
{
|
|
case body_what::normal:
|
|
break;
|
|
case body_what::upgrade:
|
|
upgrade_ = true;
|
|
// fall through
|
|
case body_what::skip:
|
|
flags_ |= parse_flag::skipbody;
|
|
break;
|
|
case body_what::pause:
|
|
return used();
|
|
}
|
|
--p;
|
|
s_ = s_headers_done;
|
|
// fall through
|
|
}
|
|
|
|
case s_headers_done:
|
|
{
|
|
BOOST_ASSERT(! cb_);
|
|
if(ec)
|
|
return errc();
|
|
bool const hasBody =
|
|
(flags_ & parse_flag::chunked) || (content_length_ > 0 &&
|
|
content_length_ != no_content_length);
|
|
if(upgrade_ && (/*method == "connect" ||*/ (flags_ & parse_flag::skipbody) || ! hasBody))
|
|
{
|
|
s_ = s_complete;
|
|
}
|
|
else if((flags_ & parse_flag::skipbody) || content_length_ == 0)
|
|
{
|
|
s_ = s_complete;
|
|
}
|
|
else if(flags_ & parse_flag::chunked)
|
|
{
|
|
s_ = s_chunk_size0;
|
|
break;
|
|
}
|
|
else if(content_length_ != no_content_length)
|
|
{
|
|
s_ = s_body_identity0;
|
|
break;
|
|
}
|
|
else if(! needs_eof())
|
|
{
|
|
s_ = s_complete;
|
|
}
|
|
else
|
|
{
|
|
s_ = s_body_identity_eof0;
|
|
break;
|
|
}
|
|
goto redo;
|
|
}
|
|
|
|
case s_body_identity0:
|
|
BOOST_ASSERT(! cb_);
|
|
cb(&self::call_on_body);
|
|
s_ = s_body_identity;
|
|
// fall through
|
|
|
|
case s_body_identity:
|
|
{
|
|
std::size_t n;
|
|
if(static_cast<std::size_t>((end - p)) < content_length_)
|
|
n = end - p;
|
|
else
|
|
n = static_cast<std::size_t>(content_length_);
|
|
BOOST_ASSERT(content_length_ != 0 && content_length_ != no_content_length);
|
|
content_length_ -= n;
|
|
if(content_length_ == 0)
|
|
{
|
|
p += n - 1;
|
|
s_ = s_complete;
|
|
goto redo; // ????
|
|
}
|
|
p += n - 1;
|
|
break;
|
|
}
|
|
|
|
case s_body_identity_eof0:
|
|
BOOST_ASSERT(! cb_);
|
|
cb(&self::call_on_body);
|
|
s_ = s_body_identity_eof;
|
|
// fall through
|
|
|
|
case s_body_identity_eof:
|
|
p = end - 1;
|
|
break;
|
|
|
|
case s_chunk_size0:
|
|
{
|
|
auto v = unhex(ch);
|
|
if(v == -1)
|
|
return err(parse_error::invalid_chunk_size);
|
|
content_length_ = v;
|
|
s_ = s_chunk_size;
|
|
break;
|
|
}
|
|
|
|
case s_chunk_size:
|
|
{
|
|
if(ch == '\r')
|
|
{
|
|
s_ = s_chunk_size_lf;
|
|
break;
|
|
}
|
|
if(ch == ';')
|
|
{
|
|
s_ = s_chunk_ext_name0;
|
|
break;
|
|
}
|
|
auto v = unhex(ch);
|
|
if(v == -1)
|
|
return err(parse_error::invalid_chunk_size);
|
|
if(content_length_ > (no_content_length - 16) / 16)
|
|
return err(parse_error::bad_content_length);
|
|
content_length_ =
|
|
content_length_ * 16 + v;
|
|
break;
|
|
}
|
|
|
|
case s_chunk_ext_name0:
|
|
if(! is_tchar(ch))
|
|
return err(parse_error::invalid_ext_name);
|
|
s_ = s_chunk_ext_name;
|
|
break;
|
|
|
|
case s_chunk_ext_name:
|
|
if(ch == '\r')
|
|
{
|
|
s_ = s_chunk_size_lf;
|
|
break;
|
|
}
|
|
if(ch == '=')
|
|
{
|
|
s_ = s_chunk_ext_val;
|
|
break;
|
|
}
|
|
if(ch == ';')
|
|
{
|
|
s_ = s_chunk_ext_name0;
|
|
break;
|
|
}
|
|
if(! is_tchar(ch))
|
|
return err(parse_error::invalid_ext_name);
|
|
break;
|
|
|
|
case s_chunk_ext_val:
|
|
if(ch == '\r')
|
|
{
|
|
s_ = s_chunk_size_lf;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case s_chunk_size_lf:
|
|
if(ch != '\n')
|
|
return err(parse_error::bad_crlf);
|
|
if(content_length_ == 0)
|
|
{
|
|
flags_ |= parse_flag::trailing;
|
|
s_ = s_header_name0;
|
|
break;
|
|
}
|
|
//call_chunk_header(ec); if(ec) return errc();
|
|
s_ = s_chunk_data0;
|
|
break;
|
|
|
|
case s_chunk_data0:
|
|
BOOST_ASSERT(! cb_);
|
|
cb(&self::call_on_body);
|
|
s_ = s_chunk_data;
|
|
goto redo; // VFALCO fall through?
|
|
|
|
case s_chunk_data:
|
|
{
|
|
std::size_t n;
|
|
if(static_cast<std::size_t>((end - p)) < content_length_)
|
|
n = end - p;
|
|
else
|
|
n = static_cast<std::size_t>(content_length_);
|
|
content_length_ -= n;
|
|
p += n - 1;
|
|
if(content_length_ == 0)
|
|
s_ = s_chunk_data_cr;
|
|
break;
|
|
}
|
|
|
|
case s_chunk_data_cr:
|
|
if(ch != '\r')
|
|
return err(parse_error::bad_crlf);
|
|
if(cb(nullptr))
|
|
return errc();
|
|
s_ = s_chunk_data_lf;
|
|
break;
|
|
|
|
case s_chunk_data_lf:
|
|
if(ch != '\n')
|
|
return err(parse_error::bad_crlf);
|
|
s_ = s_chunk_size0;
|
|
break;
|
|
|
|
case s_complete:
|
|
++p;
|
|
if(cb(nullptr))
|
|
return errc();
|
|
call_on_complete(ec);
|
|
if(ec)
|
|
return errc();
|
|
s_ = s_restart;
|
|
return used();
|
|
|
|
case s_restart:
|
|
if(keep_alive())
|
|
reset();
|
|
else
|
|
s_ = s_dead;
|
|
goto redo;
|
|
}
|
|
}
|
|
if(cb_)
|
|
{
|
|
(this->*cb_)(ec, piece());
|
|
if(ec)
|
|
return errc();
|
|
}
|
|
return used();
|
|
}
|
|
|
|
template<bool isRequest, class Derived>
|
|
void
|
|
basic_parser_v1<isRequest, Derived>::
|
|
write_eof(error_code& ec)
|
|
{
|
|
switch(s_)
|
|
{
|
|
case s_restart:
|
|
s_ = s_closed_complete;
|
|
break;
|
|
|
|
case s_dead:
|
|
case s_closed_complete:
|
|
break;
|
|
|
|
case s_body_identity_eof0:
|
|
case s_body_identity_eof:
|
|
cb_ = nullptr;
|
|
call_on_complete(ec);
|
|
if(ec)
|
|
{
|
|
s_ = s_dead;
|
|
break;
|
|
}
|
|
s_ = s_closed_complete;
|
|
break;
|
|
|
|
default:
|
|
s_ = s_dead;
|
|
ec = parse_error::short_read;
|
|
break;
|
|
}
|
|
}
|
|
|
|
template<bool isRequest, class Derived>
|
|
void
|
|
basic_parser_v1<isRequest, Derived>::
|
|
reset()
|
|
{
|
|
cb_ = nullptr;
|
|
h_left_ = h_max_;
|
|
b_left_ = b_max_;
|
|
reset(std::integral_constant<bool, isRequest>{});
|
|
}
|
|
|
|
template<bool isRequest, class Derived>
|
|
bool
|
|
basic_parser_v1<isRequest, Derived>::
|
|
needs_eof(std::true_type) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
template<bool isRequest, class Derived>
|
|
bool
|
|
basic_parser_v1<isRequest, Derived>::
|
|
needs_eof(std::false_type) const
|
|
{
|
|
// See RFC 2616 section 4.4
|
|
if( status_code_ / 100 == 1 || // 1xx e.g. Continue
|
|
status_code_ == 204 || // No Content
|
|
status_code_ == 304 || // Not Modified
|
|
flags_ & parse_flag::skipbody) // response to a HEAD request
|
|
return false;
|
|
|
|
if((flags_ & parse_flag::chunked) ||
|
|
content_length_ != no_content_length)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
} // http
|
|
} // beast
|
|
|
|
#endif
|