| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com) | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/CPPAlliance/http_proto | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_HTTP_PROTO_IMPL_PARSER_IPP | ||
| 11 | #define BOOST_HTTP_PROTO_IMPL_PARSER_IPP | ||
| 12 | |||
| 13 | #include <boost/http_proto/error.hpp> | ||
| 14 | #include <boost/http_proto/parser.hpp> | ||
| 15 | #include <boost/http_proto/detail/codec.hpp> | ||
| 16 | #include <boost/http_proto/detail/except.hpp> | ||
| 17 | #include <boost/url/grammar/ci_string.hpp> | ||
| 18 | #include <boost/assert.hpp> | ||
| 19 | #include <boost/none.hpp> | ||
| 20 | #include <memory> | ||
| 21 | |||
| 22 | namespace boost { | ||
| 23 | namespace http_proto { | ||
| 24 | |||
| 25 | /* | ||
| 26 | Parser design: | ||
| 27 | |||
| 28 | The usage of the parser is thus: | ||
| 29 | |||
| 30 | pr.reset(); // prepare for a new stream | ||
| 31 | |||
| 32 | pr.start(); // prepare for a new message | ||
| 33 | pr.start_head_response(); // new message with no payload | ||
| 34 | |||
| 35 | read_header( ..., pr ); | ||
| 36 | do | ||
| 37 | { | ||
| 38 | read_some(..., pr ); | ||
| 39 | } | ||
| 40 | while(! got_header()); | ||
| 41 | |||
| 42 | pr.set_body( ... ); | ||
| 43 | // invalidates the headers? yes. | ||
| 44 | |||
| 45 | read_body( ..., pr ); | ||
| 46 | while(! (pr.flags() & | ||
| 47 | parser::is_done_bit ) ); | ||
| 48 | { | ||
| 49 | read_some(..., pr ); | ||
| 50 | } | ||
| 51 | |||
| 52 | If these are called out of order, an | ||
| 53 | exception is thrown. | ||
| 54 | |||
| 55 | Every call to `prepare` must be | ||
| 56 | followed by a call to commit, reset, | ||
| 57 | or the destructor. | ||
| 58 | */ | ||
| 59 | //------------------------------------------------ | ||
| 60 | |||
| 61 | 745 | parser:: | |
| 62 | parser( | ||
| 63 | detail::kind k, | ||
| 64 | 745 | config_base const& cfg) | |
| 65 | : cfg_(cfg) | ||
| 66 | 745 | , h_(detail::empty{k}) | |
| 67 | { | ||
| 68 | 745 | } | |
| 69 | |||
| 70 | void | ||
| 71 | 745 | parser:: | |
| 72 | construct( | ||
| 73 | std::size_t extra_buffer_size) | ||
| 74 | { | ||
| 75 | // headers_limit too large | ||
| 76 |
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745 | if( cfg_.headers_limit > |
| 77 | BOOST_HTTP_PROTO_MAX_HEADER) | ||
| 78 | ✗ | detail::throw_invalid_argument(); | |
| 79 | |||
| 80 | // start_line_limit too large | ||
| 81 | 745 | if( cfg_.start_line_limit >= | |
| 82 |
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745 | cfg_.headers_limit) |
| 83 | ✗ | detail::throw_invalid_argument(); | |
| 84 | |||
| 85 | // field_size_limit too large | ||
| 86 | 745 | if( cfg_.field_size_limit >= | |
| 87 |
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745 | cfg_.headers_limit) |
| 88 | ✗ | detail::throw_invalid_argument(); | |
| 89 | |||
| 90 | // fields_limit too large | ||
| 91 | 745 | if( cfg_.fields_limit > | |
| 92 |
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745 | cfg_.headers_limit / 4) |
| 93 | ✗ | detail::throw_invalid_argument(); | |
| 94 | |||
| 95 | // largest space needed | ||
| 96 | auto const bytes_needed = | ||
| 97 | 745 | detail::header::bytes_needed( | |
| 98 | cfg_.headers_limit, | ||
| 99 | cfg_.fields_limit); | ||
| 100 | |||
| 101 | // prevent overflow | ||
| 102 | 745 | if(extra_buffer_size > | |
| 103 |
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745 | std::size_t(-1) - bytes_needed) |
| 104 | ✗ | detail::throw_invalid_argument(); | |
| 105 | |||
| 106 | // allocate max headers plus extra | ||
| 107 | 1490 | ws_ = detail::workspace( | |
| 108 | bytes_needed + | ||
| 109 | 745 | extra_buffer_size); | |
| 110 | |||
| 111 | 745 | h_.cap = bytes_needed; | |
| 112 | |||
| 113 | 745 | reset(); | |
| 114 | 745 | } | |
| 115 | |||
| 116 | //------------------------------------------------ | ||
| 117 | // | ||
| 118 | // Special Members | ||
| 119 | // | ||
| 120 | //------------------------------------------------ | ||
| 121 | |||
| 122 | 745 | parser:: | |
| 123 |
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2980 | ~parser() |
| 124 | { | ||
| 125 | 745 | } | |
| 126 | |||
| 127 | parser:: | ||
| 128 | parser( | ||
| 129 | parser&&) noexcept = default; | ||
| 130 | |||
| 131 | //------------------------------------------------ | ||
| 132 | // | ||
| 133 | // Observers | ||
| 134 | // | ||
| 135 | //------------------------------------------------ | ||
| 136 | |||
| 137 | string_view | ||
| 138 | ✗ | parser:: | |
| 139 | body() const noexcept | ||
| 140 | { | ||
| 141 | #if 0 | ||
| 142 | // VFALCO How about some | ||
| 143 | // asserts or exceptions? | ||
| 144 | if(! m_.got_chunked) | ||
| 145 | return string_view( | ||
| 146 | h_.buf + h_.size, | ||
| 147 | m_.n_payload); | ||
| 148 | return string_view( | ||
| 149 | h_.buf + | ||
| 150 | h_.size + | ||
| 151 | m_.n_chunk, | ||
| 152 | m_.n_payload); | ||
| 153 | #else | ||
| 154 | ✗ | return {}; | |
| 155 | #endif | ||
| 156 | } | ||
| 157 | |||
| 158 | //------------------------------------------------ | ||
| 159 | // | ||
| 160 | // Modifiers | ||
| 161 | // | ||
| 162 | //------------------------------------------------ | ||
| 163 | |||
| 164 | // prepare for a new stream | ||
| 165 | void | ||
| 166 | 745 | parser:: | |
| 167 | reset() noexcept | ||
| 168 | { | ||
| 169 | 745 | st_ = state::need_start; | |
| 170 | 745 | got_eof_ = false; | |
| 171 | 745 | } | |
| 172 | |||
| 173 | void | ||
| 174 | 770 | parser:: | |
| 175 | start_impl( | ||
| 176 | bool head_response) | ||
| 177 | { | ||
| 178 | 770 | std::size_t initial_size = 0; | |
| 179 |
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770 | switch(st_) |
| 180 | { | ||
| 181 | 737 | default: | |
| 182 | case state::need_start: | ||
| 183 |
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737 | BOOST_ASSERT(h_.size == 0); |
| 184 |
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737 | BOOST_ASSERT(h_buf_.size() == 0); |
| 185 |
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737 | BOOST_ASSERT(! got_eof_); |
| 186 | 737 | break; | |
| 187 | |||
| 188 | ✗ | case state::headers: | |
| 189 | // Can't call start twice. | ||
| 190 | ✗ | detail::throw_logic_error(); | |
| 191 | |||
| 192 | ✗ | case state::headers_done: | |
| 193 | case state::body: | ||
| 194 | // Can't call start with | ||
| 195 | // an incomplete message. | ||
| 196 | ✗ | detail::throw_logic_error(); | |
| 197 | |||
| 198 | 33 | case state::complete: | |
| 199 |
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33 | if(h_buf_.size() > 0) |
| 200 | { | ||
| 201 | // headers with no body | ||
| 202 |
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33 | BOOST_ASSERT(h_.size > 0); |
| 203 | 33 | h_buf_.consume(h_.size); | |
| 204 | 33 | initial_size = h_buf_.size(); | |
| 205 | // move unused octets to front | ||
| 206 | 33 | buffer_copy( | |
| 207 | 33 | mutable_buffer( | |
| 208 | ws_.data(), | ||
| 209 | initial_size), | ||
| 210 | 66 | h_buf_.data()); | |
| 211 | } | ||
| 212 | else | ||
| 213 | { | ||
| 214 | // leftover data after body | ||
| 215 | } | ||
| 216 | 33 | break; | |
| 217 | } | ||
| 218 | |||
| 219 | 770 | ws_.clear(); | |
| 220 | |||
| 221 | // set up header read buffer | ||
| 222 | 770 | h_buf_ = { | |
| 223 | ws_.data(), | ||
| 224 | cfg_.headers_limit, | ||
| 225 | initial_size }; | ||
| 226 | |||
| 227 | // reset the header but | ||
| 228 | // preserve the capacity | ||
| 229 | 770 | auto const cap = h_.cap; | |
| 230 | 1540 | h_ = detail::header( | |
| 231 | 770 | detail::empty{h_.kind}); | |
| 232 | 770 | h_.buf = reinterpret_cast< | |
| 233 | 770 | char*>(ws_.data()); | |
| 234 | 770 | h_.cbuf = h_.buf; | |
| 235 | 770 | h_.cap = cap; | |
| 236 | |||
| 237 | 770 | cfg_impl_ = {}; | |
| 238 | 770 | cfg_impl_.headers_limit = cfg_.headers_limit; | |
| 239 | 770 | cfg_impl_.start_line_limit = cfg_.start_line_limit; | |
| 240 | 770 | cfg_impl_.field_size_limit = cfg_.field_size_limit; | |
| 241 | 770 | cfg_impl_.fields_limit = cfg_.fields_limit; | |
| 242 | |||
| 243 | 770 | st_ = state::headers; | |
| 244 | |||
| 245 |
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770 | BOOST_ASSERT(! head_response || |
| 246 | h_.kind == detail::kind::response); | ||
| 247 | 770 | head_response_ = head_response; | |
| 248 | 770 | } | |
| 249 | |||
| 250 | auto | ||
| 251 | 3185 | parser:: | |
| 252 | prepare() -> | ||
| 253 | mutable_buffers_type | ||
| 254 | { | ||
| 255 |
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3185 | switch(st_) |
| 256 | { | ||
| 257 | ✗ | default: | |
| 258 | case state::need_start: | ||
| 259 | // start must be called once | ||
| 260 | // before calling prepare. | ||
| 261 | ✗ | if(st_ == state::need_start) | |
| 262 | ✗ | detail::throw_logic_error(); | |
| 263 | |||
| 264 | case state::headers: | ||
| 265 | // fill up to headers_limit | ||
| 266 | return { | ||
| 267 | h_buf_.prepare( | ||
| 268 | 3185 | cfg_.headers_limit - | |
| 269 | 3185 | h_buf_.size()), | |
| 270 | 3185 | mutable_buffer{} }; | |
| 271 | |||
| 272 | ✗ | case state::headers_done: | |
| 273 | { | ||
| 274 | // discard headers and move | ||
| 275 | // any leftover stream data. | ||
| 276 | ✗ | std::memmove( | |
| 277 | ws_.data(), | ||
| 278 | ✗ | h_.cbuf + h_.size, | |
| 279 | ✗ | h_buf_.size() - h_.size); | |
| 280 | ✗ | st_ = state::body; | |
| 281 | // VFALCO set up body buffer | ||
| 282 | BOOST_FALLTHROUGH; | ||
| 283 | } | ||
| 284 | |||
| 285 | ✗ | case state::body: | |
| 286 | { | ||
| 287 | ✗ | return {}; | |
| 288 | } | ||
| 289 | |||
| 290 | ✗ | case state::complete: | |
| 291 | // Can't call `prepare` again after | ||
| 292 | // a complete message is parsed, | ||
| 293 | // call `start` first. | ||
| 294 | ✗ | detail::throw_logic_error(); | |
| 295 | } | ||
| 296 | } | ||
| 297 | |||
| 298 | void | ||
| 299 | 3185 | parser:: | |
| 300 | commit( | ||
| 301 | std::size_t n) | ||
| 302 | { | ||
| 303 | // Can't commit after eof | ||
| 304 |
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3185 | if(got_eof_) |
| 305 | ✗ | detail::throw_logic_error(); | |
| 306 | |||
| 307 |
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3185 | switch(st_) |
| 308 | { | ||
| 309 | 3185 | default: | |
| 310 | case state::need_start: | ||
| 311 | case state::headers: | ||
| 312 | 3185 | h_buf_.commit(n); | |
| 313 | 3185 | break; | |
| 314 | |||
| 315 | ✗ | case state::headers_done: | |
| 316 | case state::body: | ||
| 317 | case state::complete: | ||
| 318 | ✗ | break; | |
| 319 | } | ||
| 320 | 3185 | } | |
| 321 | |||
| 322 | void | ||
| 323 | ✗ | parser:: | |
| 324 | commit_eof() | ||
| 325 | { | ||
| 326 | ✗ | switch(st_) | |
| 327 | { | ||
| 328 | ✗ | default: | |
| 329 | case state::need_start: | ||
| 330 | // Can't commit eof | ||
| 331 | // before calling start. | ||
| 332 | ✗ | detail::throw_logic_error(); | |
| 333 | |||
| 334 | ✗ | case state::headers: | |
| 335 | case state::headers_done: | ||
| 336 | case state::body: | ||
| 337 | ✗ | got_eof_ = true; | |
| 338 | ✗ | break; | |
| 339 | |||
| 340 | ✗ | case state::complete: | |
| 341 | // Can't commit eof when | ||
| 342 | // message is complete. | ||
| 343 | ✗ | detail::throw_logic_error(); | |
| 344 | } | ||
| 345 | } | ||
| 346 | |||
| 347 | // process input data then | ||
| 348 | // eof if input data runs out. | ||
| 349 | void | ||
| 350 | 3185 | parser:: | |
| 351 | parse( | ||
| 352 | error_code& ec) | ||
| 353 | { | ||
| 354 |
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3185 | switch(st_) |
| 355 | { | ||
| 356 | ✗ | default: | |
| 357 | case state::need_start: | ||
| 358 | // You must call start before | ||
| 359 | // calling parse on a new message. | ||
| 360 | ✗ | detail::throw_logic_error(); | |
| 361 | |||
| 362 | 3185 | case state::headers: | |
| 363 | { | ||
| 364 |
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3185 | BOOST_ASSERT(h_.buf == ws_.data()); |
| 365 |
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3185 | BOOST_ASSERT(h_.cbuf == ws_.data()); |
| 366 | 3185 | auto const new_size = h_buf_.size(); | |
| 367 | 3185 | h_.parse(cfg_impl_, new_size, ec); | |
| 368 |
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3185 | if(! ec.failed()) |
| 369 | { | ||
| 370 |
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584 | if( h_.md.payload != payload::none && |
| 371 |
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3 | ! head_response_) |
| 372 | { | ||
| 373 | // Deliver headers to caller | ||
| 374 | 3 | st_ = state::headers_done; | |
| 375 | 3 | break; | |
| 376 | } | ||
| 377 | // no payload | ||
| 378 | 581 | st_ = state::complete; | |
| 379 | 581 | break; | |
| 380 | } | ||
| 381 |
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5074 | if( ec == grammar::error::need_more && |
| 382 |
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2473 | got_eof_) |
| 383 | { | ||
| 384 | ✗ | if(h_.size > 0) | |
| 385 | { | ||
| 386 | // Connection closed before | ||
| 387 | // message is complete. | ||
| 388 | ✗ | ec = BOOST_HTTP_PROTO_ERR( | |
| 389 | error::incomplete); | ||
| 390 | |||
| 391 | ✗ | return; | |
| 392 | } | ||
| 393 | |||
| 394 | // Connection closed | ||
| 395 | // cleanly. | ||
| 396 | ✗ | ec = BOOST_HTTP_PROTO_ERR( | |
| 397 | error::end_of_stream); | ||
| 398 | |||
| 399 | ✗ | return; | |
| 400 | } | ||
| 401 | 2601 | return; | |
| 402 | } | ||
| 403 | |||
| 404 | ✗ | case state::headers_done: | |
| 405 | { | ||
| 406 | // This is a no-op | ||
| 407 | ✗ | ec = {}; | |
| 408 | ✗ | break; | |
| 409 | } | ||
| 410 | |||
| 411 | ✗ | case state::body: | |
| 412 | { | ||
| 413 | ✗ | parse_body(ec); | |
| 414 | ✗ | if(ec.failed()) | |
| 415 | ✗ | return; | |
| 416 | ✗ | st_ = state::complete; | |
| 417 | ✗ | break; | |
| 418 | } | ||
| 419 | } | ||
| 420 | } | ||
| 421 | |||
| 422 | //------------------------------------------------ | ||
| 423 | |||
| 424 | string_view | ||
| 425 | ✗ | parser:: | |
| 426 | release_buffered_data() noexcept | ||
| 427 | { | ||
| 428 | ✗ | return {}; | |
| 429 | } | ||
| 430 | |||
| 431 | //------------------------------------------------ | ||
| 432 | // | ||
| 433 | // Implementation | ||
| 434 | // | ||
| 435 | //------------------------------------------------ | ||
| 436 | |||
| 437 | void | ||
| 438 | 2 | parser:: | |
| 439 | apply_param( | ||
| 440 | config_base const& cfg) noexcept | ||
| 441 | { | ||
| 442 | 2 | cfg_ = cfg; | |
| 443 | 2 | } | |
| 444 | |||
| 445 | //------------------------------------------------ | ||
| 446 | |||
| 447 | auto | ||
| 448 | 37 | parser:: | |
| 449 | safe_get_header() const -> | ||
| 450 | detail::header const* | ||
| 451 | { | ||
| 452 |
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37 | switch(st_) |
| 453 | { | ||
| 454 | ✗ | default: | |
| 455 | case state::need_start: | ||
| 456 | case state::headers: | ||
| 457 | // Headers not received yet | ||
| 458 | ✗ | detail::throw_logic_error(); | |
| 459 | |||
| 460 | 3 | case state::headers_done: | |
| 461 | 3 | break; | |
| 462 | |||
| 463 | ✗ | case state::body: | |
| 464 | // Headers received and discarded | ||
| 465 | ✗ | detail::throw_logic_error(); | |
| 466 | |||
| 467 | 34 | case state::complete: | |
| 468 | // VFALCO Could be OK | ||
| 469 | 34 | break; | |
| 470 | } | ||
| 471 | 37 | return &h_; | |
| 472 | } | ||
| 473 | |||
| 474 | void | ||
| 475 | ✗ | parser:: | |
| 476 | parse_body( | ||
| 477 | error_code& ec) | ||
| 478 | { | ||
| 479 | (void)ec; | ||
| 480 | ✗ | return; | |
| 481 | // VFALCO TODO | ||
| 482 | #if 0 | ||
| 483 | BOOST_ASSERT(st_ == state::body); | ||
| 484 | |||
| 485 | if(h_.kind == detail::kind::request) | ||
| 486 | { | ||
| 487 | // https://tools.ietf.org/html/rfc7230#section-3.3 | ||
| 488 | if(m_.skip_body) | ||
| 489 | return; | ||
| 490 | if(m_.content_len.has_value()) | ||
| 491 | { | ||
| 492 | if(*m_.content_len > cfg_.body_too_large) | ||
| 493 | { | ||
| 494 | ec = error::body_too_large; | ||
| 495 | return; | ||
| 496 | } | ||
| 497 | if(*m_.content_len == 0) | ||
| 498 | return; | ||
| 499 | } | ||
| 500 | else if(m_.got_chunked) | ||
| 501 | { | ||
| 502 | // VFALCO TODO | ||
| 503 | return; | ||
| 504 | } | ||
| 505 | else | ||
| 506 | { | ||
| 507 | // Content-Length: 0 | ||
| 508 | return; | ||
| 509 | } | ||
| 510 | } | ||
| 511 | else | ||
| 512 | { | ||
| 513 | BOOST_ASSERT(h_.kind == | ||
| 514 | detail::kind::response); | ||
| 515 | |||
| 516 | // https://tools.ietf.org/html/rfc7230#section-3.3 | ||
| 517 | if((h_.res.status_int / 100 == 1) || // 1xx e.g. Continue | ||
| 518 | h_.res.status_int == 204 || // No Content | ||
| 519 | h_.res.status_int == 304) // Not Modified | ||
| 520 | { | ||
| 521 | // Content-Length may be present, but we | ||
| 522 | // treat the message as not having a body. | ||
| 523 | } | ||
| 524 | else if(m_.content_len.has_value()) | ||
| 525 | { | ||
| 526 | if(*m_.content_len > 0) | ||
| 527 | { | ||
| 528 | if(*m_.content_len > cfg_.body_too_large) | ||
| 529 | { | ||
| 530 | ec = error::body_too_large; | ||
| 531 | return; | ||
| 532 | } | ||
| 533 | } | ||
| 534 | } | ||
| 535 | else | ||
| 536 | { | ||
| 537 | // No Content-Length | ||
| 538 | return; | ||
| 539 | } | ||
| 540 | } | ||
| 541 | |||
| 542 | auto avail = committed_ - size_; | ||
| 543 | if(m_.content_len.has_value()) | ||
| 544 | { | ||
| 545 | // known payload length | ||
| 546 | BOOST_ASSERT(! m_.got_chunked); | ||
| 547 | BOOST_ASSERT(m_.n_remain > 0); | ||
| 548 | BOOST_ASSERT(m_.content_len < | ||
| 549 | cfg_.body_too_large); | ||
| 550 | if(avail == 0) | ||
| 551 | { | ||
| 552 | if(! got_eof_) | ||
| 553 | { | ||
| 554 | ec = grammar::error::need_more; | ||
| 555 | return; | ||
| 556 | } | ||
| 557 | ec = error::need_more; | ||
| 558 | return; | ||
| 559 | } | ||
| 560 | if( avail > m_.n_remain) | ||
| 561 | avail = static_cast< | ||
| 562 | std::size_t>(m_.n_remain); | ||
| 563 | size_ += avail; | ||
| 564 | m_.payload_seen += avail; | ||
| 565 | m_.n_payload += avail; | ||
| 566 | m_.n_remain -= avail; | ||
| 567 | if(m_.n_remain > 0) | ||
| 568 | { | ||
| 569 | ec = {}; | ||
| 570 | return; | ||
| 571 | } | ||
| 572 | st_ = state::complete; | ||
| 573 | ec = error::end_of_message; | ||
| 574 | return; | ||
| 575 | } | ||
| 576 | |||
| 577 | if(! m_.got_chunked) | ||
| 578 | { | ||
| 579 | // end of body indicated by EOF | ||
| 580 | if(avail > 0) | ||
| 581 | { | ||
| 582 | if(avail > (std::size_t( | ||
| 583 | -1) - m_.n_payload)) | ||
| 584 | { | ||
| 585 | // overflow size_t | ||
| 586 | // VFALCO revisit this | ||
| 587 | ec = error::numeric_overflow; | ||
| 588 | return; | ||
| 589 | } | ||
| 590 | size_ += avail; | ||
| 591 | m_.n_payload += avail; | ||
| 592 | ec = {}; | ||
| 593 | return; | ||
| 594 | } | ||
| 595 | if(! got_eof_) | ||
| 596 | { | ||
| 597 | ec = grammar::error::need_more; | ||
| 598 | return; | ||
| 599 | } | ||
| 600 | st_ = state::complete; | ||
| 601 | ec = error::end_of_message; | ||
| 602 | return; | ||
| 603 | } | ||
| 604 | #if 0 | ||
| 605 | if(m_.payload_left == 0) | ||
| 606 | { | ||
| 607 | // start of chunk | ||
| 608 | bnf::chunk_part p; | ||
| 609 | auto it = p.parse( | ||
| 610 | h_.buf + size_, | ||
| 611 | h_.buf + ( | ||
| 612 | committed_ - size_), | ||
| 613 | ec); | ||
| 614 | if(ec) | ||
| 615 | return; | ||
| 616 | auto const v = | ||
| 617 | p.value(); | ||
| 618 | m_.chunk.size = v.size; | ||
| 619 | m_.chunk.ext = v.ext; | ||
| 620 | m_.chunk.trailer = v.trailer; | ||
| 621 | m_.chunk.fresh = true; | ||
| 622 | m_.payload_left = | ||
| 623 | v.size - v.data.size(); | ||
| 624 | } | ||
| 625 | else | ||
| 626 | { | ||
| 627 | // continuation of chunk | ||
| 628 | |||
| 629 | } | ||
| 630 | #endif | ||
| 631 | #endif | ||
| 632 | } | ||
| 633 | |||
| 634 | void | ||
| 635 | ✗ | parser:: | |
| 636 | parse_chunk( | ||
| 637 | error_code& ec) | ||
| 638 | { | ||
| 639 | (void)ec; | ||
| 640 | #if 0 | ||
| 641 | switch(st_) | ||
| 642 | { | ||
| 643 | case state::start_line_line: | ||
| 644 | case state::header_fields: | ||
| 645 | parse_header(ec); | ||
| 646 | if(ec.failed()) | ||
| 647 | return; | ||
| 648 | BOOST_ASSERT(st_ > | ||
| 649 | state::header_fields); | ||
| 650 | break; | ||
| 651 | case state::body: | ||
| 652 | if(! m_.got_chunked) | ||
| 653 | return parse_body(ec); | ||
| 654 | break; | ||
| 655 | case state::complete: | ||
| 656 | ec = error::end_of_message; | ||
| 657 | if(! got_eof_) | ||
| 658 | return; | ||
| 659 | st_ = state::end_of_stream; | ||
| 660 | return; | ||
| 661 | case state::end_of_stream: | ||
| 662 | ec = error::end_of_stream; | ||
| 663 | return; | ||
| 664 | } | ||
| 665 | |||
| 666 | auto const avail = committed_ - size_; | ||
| 667 | auto const start = h_.buf + size_; | ||
| 668 | if(m_.payload_left == 0) | ||
| 669 | { | ||
| 670 | // start of chunk | ||
| 671 | // VFALCO What about chunk_part_next? | ||
| 672 | BOOST_ASSERT( | ||
| 673 | size_ == m_.header_size); | ||
| 674 | bnf::chunk_part p; | ||
| 675 | auto it = p.parse(start, | ||
| 676 | h_.buf + ( | ||
| 677 | committed_ - size_), ec); | ||
| 678 | BOOST_ASSERT(it == start); | ||
| 679 | if(ec) | ||
| 680 | return; | ||
| 681 | auto const v = p.value(); | ||
| 682 | m_.chunk.size = v.size; | ||
| 683 | m_.chunk.ext = v.ext; | ||
| 684 | m_.chunk.fresh = true; | ||
| 685 | if(v.size > 0) | ||
| 686 | { | ||
| 687 | // chunk | ||
| 688 | m_.chunk.trailer = {}; | ||
| 689 | m_.payload_left = | ||
| 690 | v.size - v.data.size(); | ||
| 691 | size_ += it - start; // excludes CRLF | ||
| 692 | return; | ||
| 693 | } | ||
| 694 | // last-chunk | ||
| 695 | BOOST_ASSERT( | ||
| 696 | v.data.empty()); | ||
| 697 | m_.chunk.trailer = | ||
| 698 | v.trailer; | ||
| 699 | m_.body = {}; | ||
| 700 | size_ += it - start; // excludes CRLF | ||
| 701 | st_ = state::complete; | ||
| 702 | } | ||
| 703 | else | ||
| 704 | { | ||
| 705 | // continuation of chunk | ||
| 706 | |||
| 707 | } | ||
| 708 | #endif | ||
| 709 | } | ||
| 710 | |||
| 711 | } // http_proto | ||
| 712 | } // boost | ||
| 713 | |||
| 714 | #endif | ||
| 715 |