| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com) | ||
| 3 | // Copyright (c) 2024 Christian Mazakas | ||
| 4 | // | ||
| 5 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 6 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 7 | // | ||
| 8 | // Official repository: https://github.com/cppalliance/http_proto | ||
| 9 | // | ||
| 10 | |||
| 11 | #include <boost/http_proto/serializer.hpp> | ||
| 12 | #include <boost/http_proto/message_view_base.hpp> | ||
| 13 | #include <boost/http_proto/filter.hpp> | ||
| 14 | #include <boost/http_proto/service/zlib_service.hpp> | ||
| 15 | #include <boost/http_proto/detail/except.hpp> | ||
| 16 | #include <boost/buffers/algorithm.hpp> | ||
| 17 | #include <boost/buffers/buffer_copy.hpp> | ||
| 18 | #include <boost/buffers/buffer_size.hpp> | ||
| 19 | #include <boost/core/ignore_unused.hpp> | ||
| 20 | #include <stddef.h> | ||
| 21 | #include <iostream> | ||
| 22 | |||
| 23 | namespace boost { | ||
| 24 | namespace http_proto { | ||
| 25 | |||
| 26 | //------------------------------------------------ | ||
| 27 | |||
| 28 | void | ||
| 29 | ✗ | consume_buffers( | |
| 30 | buffers::const_buffer*& p, | ||
| 31 | std::size_t& n, | ||
| 32 | std::size_t bytes) | ||
| 33 | { | ||
| 34 | ✗ | while(n > 0) | |
| 35 | { | ||
| 36 | ✗ | if(bytes < p->size()) | |
| 37 | { | ||
| 38 | ✗ | *p += bytes; | |
| 39 | ✗ | return; | |
| 40 | } | ||
| 41 | ✗ | bytes -= p->size(); | |
| 42 | ✗ | ++p; | |
| 43 | ✗ | --n; | |
| 44 | } | ||
| 45 | |||
| 46 | // Precondition violation | ||
| 47 | ✗ | if(bytes > 0) | |
| 48 | ✗ | detail::throw_invalid_argument(); | |
| 49 | } | ||
| 50 | |||
| 51 | template<class MutableBuffers> | ||
| 52 | void | ||
| 53 | 54 | write_chunk_header( | |
| 54 | MutableBuffers const& dest0, | ||
| 55 | std::size_t size) noexcept | ||
| 56 | { | ||
| 57 | static constexpr char hexdig[] = | ||
| 58 | "0123456789ABCDEF"; | ||
| 59 | char buf[18]; | ||
| 60 | 54 | auto p = buf + 16; | |
| 61 |
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918 | for(std::size_t i = 16; i--;) |
| 62 | { | ||
| 63 | 864 | *--p = hexdig[size & 0xf]; | |
| 64 | 864 | size >>= 4; | |
| 65 | } | ||
| 66 | 54 | buf[16] = '\r'; | |
| 67 | 54 | buf[17] = '\n'; | |
| 68 | 54 | auto n = buffers::buffer_copy( | |
| 69 | dest0, | ||
| 70 | 108 | buffers::const_buffer( | |
| 71 | buf, sizeof(buf))); | ||
| 72 | ignore_unused(n); | ||
| 73 |
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54 | BOOST_ASSERT(n == 18); |
| 74 |
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54 | BOOST_ASSERT( |
| 75 | buffers::buffer_size(dest0) == n); | ||
| 76 | 54 | } | |
| 77 | |||
| 78 | template<class DynamicBuffer> | ||
| 79 | void | ||
| 80 | 19 | write_chunk_close(DynamicBuffer& db) | |
| 81 | { | ||
| 82 | 19 | db.commit( | |
| 83 | buffers::buffer_copy( | ||
| 84 |
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19 | db.prepare(2), |
| 85 | 19 | buffers::const_buffer("\r\n", 2))); | |
| 86 | 19 | } | |
| 87 | |||
| 88 | template<class DynamicBuffer> | ||
| 89 | void | ||
| 90 | 3 | write_last_chunk(DynamicBuffer& db) | |
| 91 | { | ||
| 92 | 3 | db.commit( | |
| 93 | buffers::buffer_copy( | ||
| 94 |
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3 | db.prepare(5), |
| 95 | 3 | buffers::const_buffer("0\r\n\r\n", 5))); | |
| 96 | 3 | } | |
| 97 | |||
| 98 | //------------------------------------------------ | ||
| 99 | |||
| 100 | 20 | serializer:: | |
| 101 | ~serializer() | ||
| 102 | { | ||
| 103 | 20 | } | |
| 104 | |||
| 105 | 9 | serializer:: | |
| 106 | 9 | serializer() | |
| 107 | 9 | : serializer(65536) | |
| 108 | { | ||
| 109 | 9 | } | |
| 110 | |||
| 111 | ✗ | serializer:: | |
| 112 | serializer( | ||
| 113 | serializer&&) noexcept = default; | ||
| 114 | |||
| 115 | 20 | serializer:: | |
| 116 | serializer( | ||
| 117 | 20 | std::size_t buffer_size) | |
| 118 | 20 | : ws_(buffer_size) | |
| 119 | { | ||
| 120 | 20 | } | |
| 121 | |||
| 122 | ✗ | serializer:: | |
| 123 | serializer( | ||
| 124 | context& ctx, | ||
| 125 | ✗ | std::size_t buffer_size) | |
| 126 | ✗ | : ws_(buffer_size) | |
| 127 | ✗ | , ctx_(&ctx) | |
| 128 | { | ||
| 129 | ✗ | if( ctx_->has_service<zlib::deflate_decoder_service>() ) | |
| 130 | { | ||
| 131 | ✗ | filter_ws_.allocate(1024); | |
| 132 | ✗ | tmp1_ = { filter_ws_.data(), filter_ws_.size() }; | |
| 133 | } | ||
| 134 | ✗ | } | |
| 135 | |||
| 136 | void | ||
| 137 | ✗ | serializer:: | |
| 138 | reset() noexcept | ||
| 139 | { | ||
| 140 | ✗ | } | |
| 141 | |||
| 142 | //------------------------------------------------ | ||
| 143 | |||
| 144 | auto | ||
| 145 | 67 | serializer:: | |
| 146 | prepare() -> | ||
| 147 | system::result< | ||
| 148 | const_buffers_type> | ||
| 149 | { | ||
| 150 | // Precondition violation | ||
| 151 |
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67 | if(is_done_) |
| 152 | 1 | detail::throw_logic_error(); | |
| 153 | |||
| 154 | // Expect: 100-continue | ||
| 155 |
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66 | if(is_expect_continue_) |
| 156 | { | ||
| 157 |
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4 | if(out_.data() == hp_) |
| 158 | 2 | return const_buffers_type(hp_, 1); | |
| 159 | 2 | is_expect_continue_ = false; | |
| 160 | 2 | BOOST_HTTP_PROTO_RETURN_EC( | |
| 161 | error::expect_100_continue); | ||
| 162 | } | ||
| 163 | |||
| 164 |
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62 | if( is_compressed_ ) |
| 165 | { | ||
| 166 | ✗ | auto on_end = [&] | |
| 167 | { | ||
| 168 | ✗ | std::size_t n = 0; | |
| 169 | ✗ | if(out_.data() == hp_) | |
| 170 | ✗ | ++n; | |
| 171 | |||
| 172 | ✗ | for(buffers::const_buffer const& b : tmp0_.data()) | |
| 173 | ✗ | out_[n++] = b; | |
| 174 | |||
| 175 | auto cbs = const_buffers_type( | ||
| 176 | ✗ | out_.data(), out_.size()); | |
| 177 | |||
| 178 | ✗ | BOOST_ASSERT(buffers::buffer_size(cbs) > 0); | |
| 179 | |||
| 180 | ✗ | return cbs; | |
| 181 | ✗ | }; | |
| 182 | |||
| 183 | ✗ | if(! zlib_filter_ ) | |
| 184 | { | ||
| 185 | auto& svc = | ||
| 186 | ✗ | ctx_->get_service< | |
| 187 | ✗ | zlib::deflate_decoder_service>(); | |
| 188 | |||
| 189 | ✗ | zlib_filter_ = &svc.make_filter(filter_ws_); | |
| 190 | ✗ | tmp1_ = | |
| 191 | ✗ | { filter_ws_.data(), filter_ws_.size() }; | |
| 192 | } | ||
| 193 | |||
| 194 | ✗ | auto& zbuf = tmp1_; | |
| 195 | |||
| 196 | ✗ | if( st_ == style::source ) | |
| 197 | { | ||
| 198 | ✗ | auto results = src_->read( | |
| 199 | ✗ | zbuf.prepare(zbuf.capacity())); | |
| 200 | ✗ | more_ = !results.finished; | |
| 201 | ✗ | zbuf.commit(results.bytes); | |
| 202 | } | ||
| 203 | |||
| 204 | ✗ | buffers::mutable_buffer chunk_header; | |
| 205 | ✗ | if( is_chunked_ ) | |
| 206 | { | ||
| 207 | ✗ | auto mbs = tmp0_.prepare(detail::chunk_header_len_); | |
| 208 | ✗ | auto buf = *mbs.begin(); | |
| 209 | ✗ | if( buf.size() == 0 ) | |
| 210 | { | ||
| 211 | ✗ | auto p = mbs.begin(); | |
| 212 | ✗ | ++p; | |
| 213 | ✗ | buf = *p; | |
| 214 | } | ||
| 215 | |||
| 216 | ✗ | if( buf.size() < detail::chunk_header_len_ ) | |
| 217 | ✗ | detail::throw_length_error(); | |
| 218 | |||
| 219 | ✗ | std::memset( | |
| 220 | buf.data(), 0x00, detail::chunk_header_len_); | ||
| 221 | ✗ | tmp0_.commit(detail::chunk_header_len_); | |
| 222 | |||
| 223 | ✗ | chunk_header = buf; | |
| 224 | } | ||
| 225 | |||
| 226 | ✗ | auto get_output = [&]() -> buffers::mutable_buffer | |
| 227 | { | ||
| 228 | ✗ | auto mbs = tmp0_.prepare(tmp0_.capacity()); | |
| 229 | ✗ | auto buf = *mbs.begin(); | |
| 230 | ✗ | if( buf.size() == 0 ) | |
| 231 | { | ||
| 232 | ✗ | auto p = mbs.begin(); | |
| 233 | ✗ | ++p; | |
| 234 | ✗ | buf = *p; | |
| 235 | } | ||
| 236 | |||
| 237 | ✗ | if( is_chunked_ ) | |
| 238 | { | ||
| 239 | ✗ | if( buf.size() < | |
| 240 | detail::crlf_len_ + detail::last_chunk_len_ + 1 ) | ||
| 241 | ✗ | return {}; | |
| 242 | |||
| 243 | auto n = | ||
| 244 | ✗ | buf.size() - | |
| 245 | detail::crlf_len_ - | ||
| 246 | ✗ | detail::last_chunk_len_; | |
| 247 | |||
| 248 | ✗ | buf = { buf.data(), n }; | |
| 249 | } | ||
| 250 | |||
| 251 | // BOOST_ASSERT(buf.size() > 0); | ||
| 252 | ✗ | return buf; | |
| 253 | ✗ | }; | |
| 254 | |||
| 255 | ✗ | auto get_input = [&]() -> buffers::const_buffer | |
| 256 | { | ||
| 257 | ✗ | if( st_ == style::buffers ) | |
| 258 | { | ||
| 259 | ✗ | if( buffers::buffer_size(buf_) == 0 ) | |
| 260 | ✗ | return {}; | |
| 261 | |||
| 262 | ✗ | auto buf = *(buf_.data()); | |
| 263 | ✗ | BOOST_ASSERT(buf.size() > 0); | |
| 264 | ✗ | return buf; | |
| 265 | } | ||
| 266 | else | ||
| 267 | { | ||
| 268 | ✗ | if( zbuf.size() == 0 ) | |
| 269 | ✗ | return {}; | |
| 270 | |||
| 271 | ✗ | auto cbs = zbuf.data(); | |
| 272 | ✗ | auto buf = *cbs.begin(); | |
| 273 | ✗ | if( buf.size() == 0 ) | |
| 274 | { | ||
| 275 | ✗ | auto p = cbs.begin(); | |
| 276 | ✗ | ++p; | |
| 277 | ✗ | buf = *p; | |
| 278 | } | ||
| 279 | ✗ | BOOST_ASSERT(buf.size() > 0); | |
| 280 | ✗ | return buf; | |
| 281 | } | ||
| 282 | ✗ | }; | |
| 283 | |||
| 284 | ✗ | std::size_t num_written = 0; | |
| 285 | while( true ) | ||
| 286 | { | ||
| 287 | ✗ | auto in = get_input(); | |
| 288 | ✗ | auto out = get_output(); | |
| 289 | ✗ | if( out.size() < 6 + 1 ) | |
| 290 | { | ||
| 291 | ✗ | BOOST_ASSERT(tmp0_.size() > 0); | |
| 292 | ✗ | break; | |
| 293 | } | ||
| 294 | |||
| 295 | ✗ | auto results = zlib_filter_->on_process( | |
| 296 | ✗ | out, in, more_); | |
| 297 | |||
| 298 | ✗ | if( results.finished ) | |
| 299 | ✗ | filter_done_ = true; | |
| 300 | |||
| 301 | ✗ | if( st_ == style::buffers ) | |
| 302 | { | ||
| 303 | ✗ | buf_.consume(results.in_bytes); | |
| 304 | ✗ | if( buffers::buffer_size(buf_) == 0 ) | |
| 305 | ✗ | more_ = false; | |
| 306 | } | ||
| 307 | else | ||
| 308 | ✗ | zbuf.consume(results.in_bytes); | |
| 309 | |||
| 310 | ✗ | if( results.out_bytes == 0 ) | |
| 311 | ✗ | break; | |
| 312 | |||
| 313 | ✗ | BOOST_ASSERT(results.out_bytes > 0); | |
| 314 | |||
| 315 | ✗ | num_written += results.out_bytes; | |
| 316 | ✗ | tmp0_.commit(results.out_bytes); | |
| 317 | ✗ | } | |
| 318 | |||
| 319 | ✗ | BOOST_ASSERT(tmp0_.size() > 0); | |
| 320 | ✗ | if( is_chunked_ ) | |
| 321 | { | ||
| 322 | ✗ | write_chunk_header( | |
| 323 | chunk_header, num_written); | ||
| 324 | |||
| 325 | ✗ | buffers::buffer_copy( | |
| 326 | ✗ | tmp0_.prepare(2), | |
| 327 | ✗ | buffers::const_buffer("\r\n", 2)); | |
| 328 | ✗ | tmp0_.commit(2); | |
| 329 | |||
| 330 | ✗ | if( filter_done_ ) | |
| 331 | { | ||
| 332 | ✗ | buffers::buffer_copy( | |
| 333 | ✗ | tmp0_.prepare(5), | |
| 334 | ✗ | buffers::const_buffer( | |
| 335 | "0\r\n\r\n", 5)); | ||
| 336 | ✗ | tmp0_.commit(5); | |
| 337 | } | ||
| 338 | } | ||
| 339 | ✗ | return on_end(); | |
| 340 | } | ||
| 341 | |||
| 342 |
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62 | if(st_ == style::empty) |
| 343 | { | ||
| 344 | 9 | return const_buffers_type( | |
| 345 | 3 | out_.data(), | |
| 346 | 3 | out_.size()); | |
| 347 | } | ||
| 348 | |||
| 349 |
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59 | if(st_ == style::buffers) |
| 350 | { | ||
| 351 | 9 | return const_buffers_type( | |
| 352 | 3 | out_.data(), | |
| 353 | 3 | out_.size()); | |
| 354 | } | ||
| 355 | |||
| 356 |
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56 | if(st_ == style::source) |
| 357 | { | ||
| 358 |
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22 | if(more_) |
| 359 | { | ||
| 360 |
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17 | if(! is_chunked_) |
| 361 | { | ||
| 362 |
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9 | auto rv = src_->read( |
| 363 |
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9 | tmp0_.prepare(tmp0_.capacity())); |
| 364 | 9 | tmp0_.commit(rv.bytes); | |
| 365 |
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9 | if(rv.ec.failed()) |
| 366 | ✗ | return rv.ec; | |
| 367 | 9 | more_ = ! rv.finished; | |
| 368 | } | ||
| 369 | else | ||
| 370 | { | ||
| 371 |
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8 | if(tmp0_.capacity() > detail::chunked_overhead_) |
| 372 | { | ||
| 373 |
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8 | auto dest = tmp0_.prepare( |
| 374 | 8 | tmp0_.capacity() - | |
| 375 | 2 - // CRLF | ||
| 376 | 5); // final chunk | ||
| 377 | |||
| 378 |
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8 | auto rv = src_->read( |
| 379 | 8 | buffers::sans_prefix(dest, 18)); | |
| 380 | |||
| 381 |
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8 | if(rv.ec.failed()) |
| 382 | ✗ | return rv.ec; | |
| 383 | |||
| 384 |
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8 | if(rv.bytes != 0) |
| 385 | { | ||
| 386 | 7 | write_chunk_header( | |
| 387 | 7 | buffers::prefix(dest, 18), rv.bytes); | |
| 388 | 7 | tmp0_.commit(rv.bytes + 18); | |
| 389 | // terminate chunk | ||
| 390 | 7 | tmp0_.commit( | |
| 391 | buffers::buffer_copy( | ||
| 392 |
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7 | tmp0_.prepare(2), |
| 393 | 14 | buffers::const_buffer( | |
| 394 | "\r\n", 2))); | ||
| 395 | } | ||
| 396 | |||
| 397 |
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8 | if(rv.finished) |
| 398 | { | ||
| 399 | 2 | tmp0_.commit( | |
| 400 | buffers::buffer_copy( | ||
| 401 |
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2 | tmp0_.prepare(5), |
| 402 | 2 | buffers::const_buffer( | |
| 403 | "0\r\n\r\n", 5))); | ||
| 404 | 2 | more_ = false; | |
| 405 | } | ||
| 406 | } | ||
| 407 | } | ||
| 408 | } | ||
| 409 | |||
| 410 | 22 | std::size_t n = 0; | |
| 411 |
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22 | if(out_.data() == hp_) |
| 412 | 5 | ++n; | |
| 413 |
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66 | for(buffers::const_buffer const& b : tmp0_.data()) |
| 414 | 44 | out_[n++] = b; | |
| 415 | |||
| 416 | 66 | return const_buffers_type( | |
| 417 | 22 | out_.data(), | |
| 418 | 22 | out_.size()); | |
| 419 | } | ||
| 420 | |||
| 421 |
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34 | if(st_ == style::stream) |
| 422 | { | ||
| 423 | 34 | std::size_t n = 0; | |
| 424 |
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34 | if(out_.data() == hp_) |
| 425 | 6 | ++n; | |
| 426 |
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34 | if(tmp0_.size() == 0 && more_) |
| 427 | { | ||
| 428 | 1 | BOOST_HTTP_PROTO_RETURN_EC( | |
| 429 | error::need_data); | ||
| 430 | } | ||
| 431 |
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99 | for(buffers::const_buffer const& b : tmp0_.data()) |
| 432 | 66 | out_[n++] = b; | |
| 433 | |||
| 434 | 99 | return const_buffers_type( | |
| 435 | 33 | out_.data(), | |
| 436 | 33 | out_.size()); | |
| 437 | } | ||
| 438 | |||
| 439 | // should never get here | ||
| 440 | ✗ | detail::throw_logic_error(); | |
| 441 | } | ||
| 442 | |||
| 443 | void | ||
| 444 | 1745 | serializer:: | |
| 445 | consume( | ||
| 446 | std::size_t n) | ||
| 447 | { | ||
| 448 | // Precondition violation | ||
| 449 |
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1745 | if(is_done_) |
| 450 | 1 | detail::throw_logic_error(); | |
| 451 | |||
| 452 |
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1744 | if(is_expect_continue_) |
| 453 | { | ||
| 454 | // Cannot consume more than | ||
| 455 | // the header on 100-continue | ||
| 456 |
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3 | if(n > hp_->size()) |
| 457 | 1 | detail::throw_invalid_argument(); | |
| 458 | |||
| 459 | 2 | out_.consume(n); | |
| 460 | 2 | return; | |
| 461 | } | ||
| 462 |
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1741 | else if(out_.data() == hp_) |
| 463 | { | ||
| 464 | // consume header | ||
| 465 |
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26 | if(n < hp_->size()) |
| 466 | { | ||
| 467 | 11 | out_.consume(n); | |
| 468 | 11 | return; | |
| 469 | } | ||
| 470 | 15 | n -= hp_->size(); | |
| 471 | 15 | out_.consume(hp_->size()); | |
| 472 | } | ||
| 473 | |||
| 474 |
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1730 | switch(st_) |
| 475 | { | ||
| 476 | 3 | default: | |
| 477 | case style::empty: | ||
| 478 | 3 | out_.consume(n); | |
| 479 |
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3 | if(out_.empty()) |
| 480 | 3 | is_done_ = true; | |
| 481 | 3 | return; | |
| 482 | |||
| 483 | 3 | case style::buffers: | |
| 484 |
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3 | if( is_compressed_ ) |
| 485 | { | ||
| 486 | ✗ | tmp0_.consume(n); | |
| 487 | ✗ | if( tmp0_.size() == 0 && | |
| 488 | ✗ | filter_done_ ) | |
| 489 | ✗ | is_done_ = true; | |
| 490 | ✗ | return; | |
| 491 | } | ||
| 492 | 3 | out_.consume(n); | |
| 493 |
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3 | if(out_.empty()) |
| 494 | 3 | is_done_ = true; | |
| 495 | 3 | return; | |
| 496 | |||
| 497 | 1724 | case style::source: | |
| 498 | case style::stream: | ||
| 499 | 1724 | tmp0_.consume(n); | |
| 500 |
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1724 | if( !is_compressed_ && |
| 501 |
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3448 | tmp0_.size() == 0 && |
| 502 |
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39 | ! more_) |
| 503 | 11 | is_done_ = true; | |
| 504 | |||
| 505 | ✗ | if( is_compressed_ && | |
| 506 |
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1724 | tmp0_.size() == 0 && |
| 507 | ✗ | filter_done_ ) | |
| 508 | ✗ | is_done_ = true; | |
| 509 | 1724 | return; | |
| 510 | } | ||
| 511 | } | ||
| 512 | |||
| 513 | //------------------------------------------------ | ||
| 514 | |||
| 515 | void | ||
| 516 | 7 | serializer:: | |
| 517 | copy( | ||
| 518 | buffers::const_buffer* dest, | ||
| 519 | buffers::const_buffer const* src, | ||
| 520 | std::size_t n) noexcept | ||
| 521 | { | ||
| 522 |
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14 | while(n--) |
| 523 | 7 | *dest++ = *src++; | |
| 524 | 7 | } | |
| 525 | |||
| 526 | void | ||
| 527 | 26 | serializer:: | |
| 528 | start_init( | ||
| 529 | message_view_base const& m) | ||
| 530 | { | ||
| 531 | 26 | ws_.clear(); | |
| 532 | |||
| 533 | // VFALCO what do we do with | ||
| 534 | // metadata error code failures? | ||
| 535 | // m.ph_->md.maybe_throw(); | ||
| 536 | |||
| 537 | 26 | is_done_ = false; | |
| 538 | |||
| 539 | 26 | is_expect_continue_ = | |
| 540 | 26 | m.ph_->md.expect.is_100_continue; | |
| 541 | |||
| 542 | // Transfer-Encoding | ||
| 543 | { | ||
| 544 | 26 | auto const& te = | |
| 545 | 26 | m.ph_->md.transfer_encoding; | |
| 546 | 26 | is_chunked_ = te.is_chunked; | |
| 547 | } | ||
| 548 | |||
| 549 |
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26 | if( m.compressed() ) |
| 550 | { | ||
| 551 | ✗ | is_compressed_ = true; | |
| 552 | auto& svc = | ||
| 553 | ✗ | ctx_->get_service< | |
| 554 | ✗ | zlib::deflate_decoder_service>(); | |
| 555 | |||
| 556 | ✗ | BOOST_ASSERT(!zlib_filter_); | |
| 557 | ✗ | zlib_filter_ = &svc.make_filter(filter_ws_); | |
| 558 | } | ||
| 559 | 26 | } | |
| 560 | |||
| 561 | void | ||
| 562 | 4 | serializer:: | |
| 563 | start_empty( | ||
| 564 | message_view_base const& m) | ||
| 565 | { | ||
| 566 | 4 | start_init(m); | |
| 567 | |||
| 568 | 4 | st_ = style::empty; | |
| 569 | |||
| 570 |
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4 | if(! is_chunked_) |
| 571 | { | ||
| 572 | 3 | out_ = make_array( | |
| 573 | 1); // header | ||
| 574 | } | ||
| 575 | else | ||
| 576 | { | ||
| 577 |
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1 | out_ = make_array( |
| 578 | 1 + // header | ||
| 579 | 1); // final chunk | ||
| 580 | |||
| 581 | // Buffer is too small | ||
| 582 |
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1 | if(ws_.size() < 5) |
| 583 | ✗ | detail::throw_length_error(); | |
| 584 | |||
| 585 | buffers::mutable_buffer dest( | ||
| 586 | 1 | ws_.data(), 5); | |
| 587 | 1 | buffers::buffer_copy( | |
| 588 | dest, | ||
| 589 | 1 | buffers::const_buffer( | |
| 590 | "0\r\n\r\n", 5)); | ||
| 591 | 1 | out_[1] = dest; | |
| 592 | } | ||
| 593 | |||
| 594 | 4 | hp_ = &out_[0]; | |
| 595 | 4 | *hp_ = { m.ph_->cbuf, m.ph_->size }; | |
| 596 | 4 | } | |
| 597 | |||
| 598 | void | ||
| 599 | 7 | serializer:: | |
| 600 | start_buffers( | ||
| 601 | message_view_base const& m) | ||
| 602 | { | ||
| 603 | 7 | st_ = style::buffers; | |
| 604 |
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7 | if( is_compressed_ ) |
| 605 | { | ||
| 606 | ✗ | out_ = make_array( | |
| 607 | 1 + // header | ||
| 608 | 2); // tmp | ||
| 609 | |||
| 610 | ✗ | hp_ = &out_[0]; | |
| 611 | ✗ | *hp_ = { m.ph_->cbuf, m.ph_->size }; | |
| 612 | ✗ | tmp0_ = { ws_.data(), ws_.size() }; | |
| 613 | ✗ | more_ = true; | |
| 614 | ✗ | return; | |
| 615 | } | ||
| 616 | |||
| 617 |
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7 | if(! is_chunked_) |
| 618 | { | ||
| 619 | //if(! cod_) | ||
| 620 | { | ||
| 621 | 6 | out_ = make_array( | |
| 622 | 1 + // header | ||
| 623 | 6 | buf_.size()); // body | |
| 624 | 12 | copy(&out_[1], | |
| 625 | 6 | buf_.data(), buf_.size()); | |
| 626 | } | ||
| 627 | #if 0 | ||
| 628 | else | ||
| 629 | { | ||
| 630 | out_ = make_array( | ||
| 631 | 1 + // header | ||
| 632 | 2); // tmp1 | ||
| 633 | } | ||
| 634 | #endif | ||
| 635 | } | ||
| 636 | else | ||
| 637 | { | ||
| 638 | //if(! cod_) | ||
| 639 | { | ||
| 640 |
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1 | out_ = make_array( |
| 641 | 1 + // header | ||
| 642 | 1 + // chunk size | ||
| 643 | 1 | buf_.size() + // body | |
| 644 | 1); // final chunk | ||
| 645 | 2 | copy(&out_[2], | |
| 646 | 1 | buf_.data(), buf_.size()); | |
| 647 | |||
| 648 | // Buffer is too small | ||
| 649 |
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1 | if(ws_.size() < 18 + 7) |
| 650 | ✗ | detail::throw_length_error(); | |
| 651 | 1 | buffers::mutable_buffer s1(ws_.data(), 18); | |
| 652 | 1 | buffers::mutable_buffer s2(ws_.data(), 18 + 7); | |
| 653 | 1 | s2 += 18; // VFALCO HACK | |
| 654 | 1 | write_chunk_header( | |
| 655 | s1, | ||
| 656 | 1 | buffers::buffer_size(buf_)); | |
| 657 | 1 | buffers::buffer_copy(s2, buffers::const_buffer( | |
| 658 | "\r\n" | ||
| 659 | "0\r\n" | ||
| 660 | "\r\n", 7)); | ||
| 661 | 1 | out_[1] = s1; | |
| 662 | 1 | out_[out_.size() - 1] = s2; | |
| 663 | } | ||
| 664 | #if 0 | ||
| 665 | else | ||
| 666 | { | ||
| 667 | out_ = make_array( | ||
| 668 | 1 + // header | ||
| 669 | 2); // tmp1 | ||
| 670 | } | ||
| 671 | #endif | ||
| 672 | } | ||
| 673 | |||
| 674 | 7 | hp_ = &out_[0]; | |
| 675 | 7 | *hp_ = { m.ph_->cbuf, m.ph_->size }; | |
| 676 | } | ||
| 677 | |||
| 678 | void | ||
| 679 | 8 | serializer:: | |
| 680 | start_source( | ||
| 681 | message_view_base const& m, | ||
| 682 | source* src) | ||
| 683 | { | ||
| 684 | 8 | st_ = style::source; | |
| 685 | 8 | src_ = src; | |
| 686 | 8 | out_ = make_array( | |
| 687 | 1 + // header | ||
| 688 | 2); // tmp | ||
| 689 | //if(! cod_) | ||
| 690 | { | ||
| 691 | 8 | tmp0_ = { ws_.data(), ws_.size() }; | |
| 692 |
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8 | if(tmp0_.capacity() < |
| 693 | 18 + // chunk size | ||
| 694 | 1 + // body (1 byte) | ||
| 695 | 2 + // CRLF | ||
| 696 | 5) // final chunk | ||
| 697 | ✗ | detail::throw_length_error(); | |
| 698 | } | ||
| 699 | #if 0 | ||
| 700 | else | ||
| 701 | { | ||
| 702 | buffers::buffered_base::allocator a( | ||
| 703 | ws_.data(), ws_.size()/3, false); | ||
| 704 | src->init(a); | ||
| 705 | ws_.reserve(a.size_used()); | ||
| 706 | |||
| 707 | auto const n = ws_.size() / 2; | ||
| 708 | |||
| 709 | tmp0_ = { ws_.data(), ws_.size() / 2 }; | ||
| 710 | ws_.reserve(n); | ||
| 711 | |||
| 712 | // Buffer is too small | ||
| 713 | if(ws_.size() < 1) | ||
| 714 | detail::throw_length_error(); | ||
| 715 | |||
| 716 | tmp1_ = { ws_.data(), ws_.size() }; | ||
| 717 | } | ||
| 718 | #endif | ||
| 719 | |||
| 720 | 8 | hp_ = &out_[0]; | |
| 721 | 8 | *hp_ = { m.ph_->cbuf, m.ph_->size }; | |
| 722 | 8 | more_ = true; | |
| 723 | 8 | } | |
| 724 | |||
| 725 | auto | ||
| 726 | 7 | serializer:: | |
| 727 | start_stream( | ||
| 728 | message_view_base const& m) -> | ||
| 729 | stream | ||
| 730 | { | ||
| 731 | 7 | start_init(m); | |
| 732 | |||
| 733 | 7 | st_ = style::stream; | |
| 734 | 7 | out_ = make_array( | |
| 735 | 1 + // header | ||
| 736 | 2); // tmp | ||
| 737 | //if(! cod_) | ||
| 738 | { | ||
| 739 | 7 | tmp0_ = { ws_.data(), ws_.size() }; | |
| 740 |
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7 | if(tmp0_.capacity() < |
| 741 | 18 + // chunk size | ||
| 742 | 1 + // body (1 byte) | ||
| 743 | 2 + // CRLF | ||
| 744 | 5) // final chunk | ||
| 745 | ✗ | detail::throw_length_error(); | |
| 746 | } | ||
| 747 | #if 0 | ||
| 748 | else | ||
| 749 | { | ||
| 750 | auto const n = ws_.size() / 2; | ||
| 751 | tmp0_ = { ws_.data(), n }; | ||
| 752 | ws_.reserve(n); | ||
| 753 | |||
| 754 | // Buffer is too small | ||
| 755 | if(ws_.size() < 1) | ||
| 756 | detail::throw_length_error(); | ||
| 757 | |||
| 758 | tmp1_ = { ws_.data(), ws_.size() }; | ||
| 759 | } | ||
| 760 | #endif | ||
| 761 | |||
| 762 | 7 | hp_ = &out_[0]; | |
| 763 | 7 | *hp_ = { m.ph_->cbuf, m.ph_->size }; | |
| 764 | |||
| 765 | 7 | more_ = true; | |
| 766 | |||
| 767 | 7 | return stream{*this}; | |
| 768 | } | ||
| 769 | |||
| 770 | //------------------------------------------------ | ||
| 771 | |||
| 772 | std::size_t | ||
| 773 | 140 | serializer:: | |
| 774 | stream:: | ||
| 775 | capacity() const noexcept | ||
| 776 | { | ||
| 777 | 140 | return sr_->tmp0_.capacity(); | |
| 778 | } | ||
| 779 | |||
| 780 | std::size_t | ||
| 781 | 132 | serializer:: | |
| 782 | stream:: | ||
| 783 | size() const noexcept | ||
| 784 | { | ||
| 785 | 132 | return sr_->tmp0_.size(); | |
| 786 | } | ||
| 787 | |||
| 788 | bool | ||
| 789 | 66 | serializer:: | |
| 790 | stream:: | ||
| 791 | is_full() const noexcept | ||
| 792 | { | ||
| 793 |
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66 | if( sr_->is_chunked_ ) |
| 794 | 36 | return capacity() < detail::chunked_overhead_ + 1; | |
| 795 | |||
| 796 | 30 | return capacity() == 0; | |
| 797 | } | ||
| 798 | |||
| 799 | auto | ||
| 800 | 36 | serializer:: | |
| 801 | stream:: | ||
| 802 | prepare() const -> | ||
| 803 | buffers_type | ||
| 804 | { | ||
| 805 |
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36 | if( sr_->is_compressed_ ) |
| 806 | ✗ | return sr_->tmp1_.prepare( | |
| 807 | ✗ | sr_->tmp1_.capacity()); | |
| 808 | |||
| 809 | 36 | auto n = sr_->tmp0_.capacity(); | |
| 810 |
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36 | if( sr_->is_chunked_ ) |
| 811 | { | ||
| 812 | // for chunked encoding, we want to unconditionally | ||
| 813 | // reserve space for the complete chunk and the | ||
| 814 | // last-chunk | ||
| 815 | // this enables users to call: | ||
| 816 | // | ||
| 817 | // stream.commit(n); stream.close(); | ||
| 818 | // | ||
| 819 | // without needing to worry about draining the | ||
| 820 | // serializer via `consume()` calls | ||
| 821 |
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21 | if( n < detail::chunked_overhead_ + 1 ) |
| 822 | 1 | detail::throw_length_error(); | |
| 823 | |||
| 824 | 20 | n -= detail::chunked_overhead_; | |
| 825 | 20 | return buffers::sans_prefix( | |
| 826 | 40 | sr_->tmp0_.prepare( | |
| 827 | detail::chunk_header_len_ + n), | ||
| 828 | 20 | detail::chunk_header_len_); | |
| 829 | } | ||
| 830 | |||
| 831 | 15 | return sr_->tmp0_.prepare(n); | |
| 832 | } | ||
| 833 | |||
| 834 | void | ||
| 835 | 35 | serializer:: | |
| 836 | stream:: | ||
| 837 | commit(std::size_t n) const | ||
| 838 | { | ||
| 839 |
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35 | if( sr_->is_compressed_ ) |
| 840 | { | ||
| 841 | ✗ | sr_->tmp1_.commit(n); | |
| 842 | ✗ | return; | |
| 843 | } | ||
| 844 | |||
| 845 |
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35 | if(! sr_->is_chunked_ ) |
| 846 | { | ||
| 847 | 15 | sr_->tmp0_.commit(n); | |
| 848 | } | ||
| 849 | else | ||
| 850 | { | ||
| 851 | // Zero sized chunks are not valid. Call close() | ||
| 852 | // if the intent is to signal the end of the body. | ||
| 853 |
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20 | if( n == 0 ) |
| 854 | 1 | detail::throw_logic_error(); | |
| 855 | |||
| 856 | // TODO: this needs to be relocated | ||
| 857 | // | ||
| 858 | 19 | auto m = n + detail::chunk_header_len_; | |
| 859 |
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19 | auto dest = sr_->tmp0_.prepare(m); |
| 860 | 19 | write_chunk_header( | |
| 861 | 19 | buffers::prefix( | |
| 862 | dest, detail::chunk_header_len_), | ||
| 863 | n); | ||
| 864 | 19 | sr_->tmp0_.commit(m); | |
| 865 |
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19 | write_chunk_close(sr_->tmp0_); |
| 866 | } | ||
| 867 | } | ||
| 868 | |||
| 869 | void | ||
| 870 | 9 | serializer:: | |
| 871 | stream:: | ||
| 872 | close() const | ||
| 873 | { | ||
| 874 | // Precondition violation | ||
| 875 |
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9 | if(! sr_->more_ ) |
| 876 | 4 | detail::throw_logic_error(); | |
| 877 | |||
| 878 |
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5 | if( sr_->is_chunked_ && !sr_->is_compressed_ ) |
| 879 | 3 | write_last_chunk(sr_->tmp0_); | |
| 880 | |||
| 881 | 5 | sr_->more_ = false; | |
| 882 | 5 | } | |
| 883 | |||
| 884 | //------------------------------------------------ | ||
| 885 | |||
| 886 | } // http_proto | ||
| 887 | } // boost | ||
| 888 |