|
| 1 | +#ifndef BOOST_NETWORK_PROTOCOL_HTTP_IMPL_HTTP_ASYNC_PROTOCOL_HANDLER_HPP_20101015 |
| 2 | +#defineBOOST_NETWORK_PROTOCOL_HTTP_IMPL_HTTP_ASYNC_PROTOCOL_HANDLER_HPP_20101015 |
| 3 | + |
| 4 | +// Copyright 2010 (C) Dean Michael Berris |
| 5 | +// Distributed under the Boost Software License, Version 1.0. |
| 6 | +// (See accompanying file LICENSE_1_0.txt or copy at |
| 7 | +// http://www.boost.org/LICENSE_1_0.txt) |
| 8 | + |
| 9 | +namespaceboost {namespacenetwork {namespacehttp {namespaceimpl { |
| 10 | + |
| 11 | +template<classTag,unsigned version_major,unsigned version_minor> |
| 12 | +structhttp_async_protocol_handler { |
| 13 | +protected: |
| 14 | + |
| 15 | +typedeftypename string<Tag>::type string_type; |
| 16 | + |
| 17 | +template<classResponseType> |
| 18 | +voidinit_response(ResponseType & response_,bool get_body) { |
| 19 | + boost::shared_future<string_type>source_future(source_promise.get_future()); |
| 20 | +source(response_, source_future); |
| 21 | + boost::shared_future<string_type>destination_future(destination_promise.get_future()); |
| 22 | +destination(response_, destination_future); |
| 23 | + boost::shared_future<typename headers_container<Tag>::type>headers_future(headers_promise.get_future()); |
| 24 | +headers(response_, headers_future); |
| 25 | + boost::shared_future<string_type>body_future(body_promise.get_future()); |
| 26 | +body(response_, body_future); |
| 27 | + boost::shared_future<string_type>version_future(version_promise.get_future()); |
| 28 | +version(response_, version_future); |
| 29 | + boost::shared_future<boost::uint16_t>status_future(status_promise.get_future()); |
| 30 | +status(response_, status_future); |
| 31 | + boost::shared_future<string_type>status_message_future(status_message_promise.get_future()); |
| 32 | +status_message(response_, status_message_future); |
| 33 | + } |
| 34 | + |
| 35 | +structto_http_headers { |
| 36 | +typedeftypename string<Tag>::type string_type; |
| 37 | +template<classU> |
| 38 | + string_typeconstoperator() (Uconst & pair)const { |
| 39 | +typedeftypename ostringstream<Tag>::type ostringstream_type; |
| 40 | +typedef constants<Tag> constants; |
| 41 | + ostringstream_type header_line; |
| 42 | + header_line << pair.first |
| 43 | + <<constants::colon() |
| 44 | + <<constants::space() |
| 45 | + << pair.second |
| 46 | + <<constants::crlf(); |
| 47 | +return header_line.str(); |
| 48 | + } |
| 49 | + }; |
| 50 | + |
| 51 | +template<classRequestType> |
| 52 | + string_typeinit_command_stream(RequestTypeconst & request, string_typeconst & method) { |
| 53 | +typename ostringstream<Tag>::type command_stream; |
| 54 | + string_type path_str; |
| 55 | + path_str =path(request); |
| 56 | +typedef constants<Tag> constants; |
| 57 | + command_stream |
| 58 | + << method <<constants::space() |
| 59 | + << path_str <<constants::space() |
| 60 | + <<constants::http_slash() << version_major |
| 61 | + <<constants::dot() << version_minor |
| 62 | + <<constants::crlf(); |
| 63 | + |
| 64 | +typedeftypename headers_range<RequestType>::type headers_range_type; |
| 65 | + headers_range_type headers_ =headers(request); |
| 66 | +boost::range::transform( |
| 67 | + headers_, |
| 68 | +typename ostream_iterator<Tag, string_type>::type (command_stream), |
| 69 | +to_http_headers()); |
| 70 | + |
| 71 | +if (boost::empty(headers(request)[constants::host()])) { |
| 72 | + string_type host_str =host(request); |
| 73 | + command_stream |
| 74 | + <<constants::host() <<constants::colon() <<constants::space() << host_str <<constants::crlf(); |
| 75 | + } |
| 76 | + |
| 77 | +if (boost::empty(headers(request)[constants::accept()])) { |
| 78 | + command_stream |
| 79 | + <<constants::accept() <<constants::colon() <<constants::space() <<constants::default_accept_mime() <<constants::crlf(); |
| 80 | + } |
| 81 | + |
| 82 | +if (version_major ==1u && version_minor ==1u &&boost::empty(headers(request)[constants::accept_encoding()])) { |
| 83 | + command_stream |
| 84 | + <<constants::accept_encoding() <<constants::colon() <<constants::space() <<constants::default_accept_encoding() <<constants::crlf(); |
| 85 | + } |
| 86 | + |
| 87 | +if (boost::empty(headers(request)[constants::user_agent()])) { |
| 88 | + command_stream |
| 89 | + <<constants::user_agent() <<constants::colon() <<constants::space() <<constants::cpp_netlib_slash() << BOOST_NETLIB_VERSION <<constants::crlf(); |
| 90 | + } |
| 91 | + |
| 92 | + command_stream <<constants::crlf(); |
| 93 | + |
| 94 | +return command_stream.str(); |
| 95 | + } |
| 96 | + |
| 97 | +template<classSocket,classCallback> |
| 98 | + logic::triboolparse_version(Socket & socket_, Callback callback) { |
| 99 | + logic::tribool parsed_ok; |
| 100 | +typename boost::iterator_range<typename buffer_type::const_iterator> result_range; |
| 101 | +fusion::tie(parsed_ok, result_range) = response_parser_.parse_until( |
| 102 | + response_parser_type::http_version_done, |
| 103 | + part); |
| 104 | +if (parsed_ok ==true) { |
| 105 | + string_type version; |
| 106 | +std::swap(version, partial_parsed); |
| 107 | + version.append(boost::begin(result_range),boost::end(result_range)); |
| 108 | +algorithm::trim(version); |
| 109 | + version_promise.set_value(version); |
| 110 | + part_begin =boost::end(result_range); |
| 111 | + }elseif (parsed_ok ==false) { |
| 112 | + std::runtime_errorerror("Invalid Version Part."); |
| 113 | + version_promise.set_exception(boost::copy_exception(error)); |
| 114 | + status_promise.set_exception(boost::copy_exception(error)); |
| 115 | + status_message_promise.set_exception(boost::copy_exception(error)); |
| 116 | + headers_promise.set_exception(boost::copy_exception(error)); |
| 117 | + source_promise.set_exception(boost::copy_exception(error)); |
| 118 | + destination_promise.set_exception(boost::copy_exception(error)); |
| 119 | + body_promise.set_exception(boost::copy_exception(error)); |
| 120 | + }else { |
| 121 | + partial_parsed.append( |
| 122 | +boost::begin(result_range), |
| 123 | +boost::end(result_range) |
| 124 | + ); |
| 125 | + part_begin = part.begin(); |
| 126 | +boost::asio::async_read( |
| 127 | + socket_, |
| 128 | +boost::asio::mutable_buffers_1(part.c_array(), part.size()), |
| 129 | + callback |
| 130 | + ); |
| 131 | + } |
| 132 | +return parsed_ok; |
| 133 | + } |
| 134 | + |
| 135 | +template<classSocket,classCallback> |
| 136 | + logic::triboolparse_status(Socket & socket_, Callback callback) { |
| 137 | + logic::tribool parsed_ok; |
| 138 | +typename buffer_type::const_iterator part_end = part.end(); |
| 139 | +typename boost::iterator_range<typename buffer_type::const_iterator> result_range, |
| 140 | + input_range =boost::make_iterator_range(part_begin, part_end); |
| 141 | +fusion::tie(parsed_ok, result_range) = response_parser_.parse_until( |
| 142 | + response_parser_type::http_status_done, |
| 143 | + input_range); |
| 144 | +if (parsed_ok ==true) { |
| 145 | + string_type status; |
| 146 | +std::swap(status, partial_parsed); |
| 147 | + status.append(boost::begin(result_range),boost::end(result_range)); |
| 148 | +trim(status); |
| 149 | + boost::uint16_t status_int = lexical_cast<boost::uint16_t>(status); |
| 150 | + status_promise.set_value(status_int); |
| 151 | + part_begin =boost::end(result_range); |
| 152 | + }elseif (parsed_ok ==false) { |
| 153 | + std::runtime_errorerror("Invalid status part."); |
| 154 | + status_promise.set_exception(boost::copy_exception(error)); |
| 155 | + status_message_promise.set_exception(boost::copy_exception(error)); |
| 156 | + headers_promise.set_exception(boost::copy_exception(error)); |
| 157 | + source_promise.set_exception(boost::copy_exception(error)); |
| 158 | + destination_promise.set_exception(boost::copy_exception(error)); |
| 159 | + body_promise.set_exception(boost::copy_exception(error)); |
| 160 | + }else { |
| 161 | + partial_parsed.append( |
| 162 | +boost::begin(result_range), |
| 163 | +boost::end(result_range) |
| 164 | + ); |
| 165 | + part_begin = part.begin(); |
| 166 | +boost::asio::async_read(socket_, |
| 167 | +boost::asio::mutable_buffers_1(part.c_array(), part.size()), |
| 168 | + callback |
| 169 | + ); |
| 170 | + } |
| 171 | +return parsed_ok; |
| 172 | + } |
| 173 | + |
| 174 | +template<classSocket,classCallback> |
| 175 | + logic::triboolparse_status_message(Socket & socket_, Callback callback) { |
| 176 | + logic::tribool parsed_ok; |
| 177 | +typename buffer_type::const_iterator part_end = part.end(); |
| 178 | +typename boost::iterator_range<typename buffer_type::const_iterator> result_range, |
| 179 | + input_range =boost::make_iterator_range(part_begin, part_end); |
| 180 | +fusion::tie(parsed_ok, result_range) = response_parser_.parse_until( |
| 181 | + response_parser_type::http_status_message_done, |
| 182 | + input_range); |
| 183 | +if (parsed_ok ==true) { |
| 184 | + string_type status_message; |
| 185 | +std::swap(status_message, partial_parsed); |
| 186 | + status_message.append(boost::begin(result_range),boost::end(result_range)); |
| 187 | +algorithm::trim(status_message); |
| 188 | + status_message_promise.set_value(status_message); |
| 189 | + part_begin =boost::end(result_range); |
| 190 | + }elseif (parsed_ok ==false) { |
| 191 | + std::runtime_errorerror("Invalid status message part."); |
| 192 | + status_message_promise.set_exception(boost::copy_exception(error)); |
| 193 | + headers_promise.set_exception(boost::copy_exception(error)); |
| 194 | + source_promise.set_exception(boost::copy_exception(error)); |
| 195 | + destination_promise.set_exception(boost::copy_exception(error)); |
| 196 | + body_promise.set_exception(boost::copy_exception(error)); |
| 197 | + }else { |
| 198 | + partial_parsed.append( |
| 199 | +boost::begin(result_range), |
| 200 | +boost::end(result_range)); |
| 201 | + part_begin = part.begin(); |
| 202 | +boost::asio::async_read( |
| 203 | + socket_, |
| 204 | +boost::asio::mutable_buffers_1(part.c_array(), part.size()), |
| 205 | + callback |
| 206 | + ); |
| 207 | + } |
| 208 | +return parsed_ok; |
| 209 | + } |
| 210 | + |
| 211 | +voidparse_headers_real(string_type & headers_part) { |
| 212 | +typename boost::iterator_range<typename string_type::const_iterator> |
| 213 | + input_range =boost::make_iterator_range(headers_part) |
| 214 | + , result_range; |
| 215 | + logic::tribool parsed_ok; |
| 216 | + response_parser_typeheaders_parser(response_parser_type::http_header_line_done); |
| 217 | +typename headers_container<Tag>::type headers; |
| 218 | + std::pair<string_type,string_type> header_pair; |
| 219 | +while (!boost::empty(input_range)) { |
| 220 | +fusion::tie(parsed_ok, result_range) = headers_parser.parse_until( |
| 221 | + response_parser_type::http_header_colon |
| 222 | + , input_range); |
| 223 | +if (headers_parser.state() != response_parser_type::http_header_colon)break; |
| 224 | + header_pair.first =string_type( |
| 225 | +boost::begin(result_range), |
| 226 | +boost::end(result_range)); |
| 227 | + input_range.advance_begin(boost::distance(result_range)); |
| 228 | +fusion::tie(parsed_ok, result_range) = headers_parser.parse_until( |
| 229 | + response_parser_type::http_header_line_done |
| 230 | + , input_range); |
| 231 | + header_pair.second =string_type( |
| 232 | +boost::begin(result_range), |
| 233 | +boost::end(result_range)); |
| 234 | + input_range.advance_begin(boost::distance(result_range)); |
| 235 | + |
| 236 | +trim(header_pair.first); |
| 237 | +if (header_pair.first.size() >1) { |
| 238 | + header_pair.first.erase( |
| 239 | + header_pair.first.size() -1 |
| 240 | + ); |
| 241 | + } |
| 242 | +trim(header_pair.second); |
| 243 | + headers.insert(header_pair); |
| 244 | + } |
| 245 | + headers_promise.set_value(headers); |
| 246 | + } |
| 247 | + |
| 248 | +template<classSocket,classCallback> |
| 249 | + fusion::tuple<logic::tribool,size_t>parse_headers(Socket & socket_, Callback callback) { |
| 250 | + logic::tribool parsed_ok; |
| 251 | +typename buffer_type::const_iterator part_end = part.end(); |
| 252 | +typename boost::iterator_range<typename buffer_type::const_iterator> result_range, |
| 253 | + input_range =boost::make_iterator_range(part_begin, part_end); |
| 254 | +fusion::tie(parsed_ok, result_range) = response_parser_.parse_until( |
| 255 | + response_parser_type::http_headers_done, |
| 256 | + input_range); |
| 257 | +if (parsed_ok ==true) { |
| 258 | + string_type headers_string; |
| 259 | +std::swap(headers_string, partial_parsed); |
| 260 | + headers_string.append(boost::begin(result_range),boost::end(result_range)); |
| 261 | + part_begin =boost::end(result_range); |
| 262 | +this->parse_headers_real(headers_string); |
| 263 | + }elseif (parsed_ok ==false) { |
| 264 | + std::runtime_errorerror("Invalid header part."); |
| 265 | + headers_promise.set_exception(boost::copy_exception(error)); |
| 266 | + body_promise.set_exception(boost::copy_exception(error)); |
| 267 | + source_promise.set_exception(boost::copy_exception(error)); |
| 268 | + destination_promise.set_exception(boost::copy_exception(error)); |
| 269 | + }else { |
| 270 | + partial_parsed.append(boost::begin(result_range),boost::end(result_range)); |
| 271 | + part_begin = part.begin(); |
| 272 | +boost::asio::async_read( |
| 273 | + socket_, |
| 274 | +boost::asio::mutable_buffers_1(part.c_array(), part.size()), |
| 275 | + callback |
| 276 | + ); |
| 277 | + } |
| 278 | +returnfusion::make_tuple( |
| 279 | + parsed_ok, |
| 280 | +std::distance( |
| 281 | +boost::end(result_range) |
| 282 | + , part_end |
| 283 | + ) |
| 284 | + ); |
| 285 | + } |
| 286 | + |
| 287 | +template<classSocket,classCallback> |
| 288 | +voidparse_body(Socket & socket_, Callback callback,size_t bytes) { |
| 289 | + partial_parsed.append(part_begin, bytes); |
| 290 | + part_begin = part.begin(); |
| 291 | +boost::asio::async_read( |
| 292 | + socket_, |
| 293 | +boost::asio::mutable_buffers_1(part.c_array(), part.size()), |
| 294 | + callback |
| 295 | + ); |
| 296 | + } |
| 297 | + |
| 298 | +typedef response_parser<Tag> response_parser_type; |
| 299 | +typedef boost::array<typename char_<Tag>::type,1024> buffer_type; |
| 300 | + |
| 301 | + response_parser_type response_parser_; |
| 302 | + boost::promise<string_type> version_promise; |
| 303 | + boost::promise<boost::uint16_t> status_promise; |
| 304 | + boost::promise<string_type> status_message_promise; |
| 305 | + boost::promise<typename headers_container<Tag>::type> headers_promise; |
| 306 | + boost::promise<string_type> source_promise; |
| 307 | + boost::promise<string_type> destination_promise; |
| 308 | + boost::promise<string_type> body_promise; |
| 309 | + buffer_type part; |
| 310 | +typename buffer_type::const_iterator part_begin; |
| 311 | + string_type partial_parsed; |
| 312 | + }; |
| 313 | + |
| 314 | + |
| 315 | +}/* impl*/ |
| 316 | + |
| 317 | +}/* http*/ |
| 318 | + |
| 319 | +}/* network*/ |
| 320 | + |
| 321 | +}/* boost*/ |
| 322 | + |
| 323 | +#endif/* BOOST_NETWORK_PROTOCOL_HTTP_IMPL_HTTP_ASYNC_PROTOCOL_HANDLER_HPP_20101015*/ |