| 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_DETAIL_IMPL_ZLIB_CODEC_IPP | ||
| 11 | #define BOOST_HTTP_PROTO_DETAIL_IMPL_ZLIB_CODEC_IPP | ||
| 12 | |||
| 13 | #ifdef BOOST_HTTP_PROTO_HAS_ZLIB | ||
| 14 | |||
| 15 | #include <boost/http_proto/parser.hpp> | ||
| 16 | #include <boost/http_proto/serializer.hpp> | ||
| 17 | #include <boost/http_proto/detail/codec.hpp> | ||
| 18 | #include <boost/core/ignore_unused.hpp> | ||
| 19 | #include <boost/throw_exception.hpp> | ||
| 20 | #include "zlib.h" | ||
| 21 | |||
| 22 | namespace boost { | ||
| 23 | namespace http_proto { | ||
| 24 | namespace detail { | ||
| 25 | |||
| 26 | enum class zlib_error | ||
| 27 | { | ||
| 28 | ok = 0, | ||
| 29 | stream_end = 1, | ||
| 30 | need_dict = 2, | ||
| 31 | errno_ = -1, | ||
| 32 | stream_err = -2, | ||
| 33 | data_err = -3, | ||
| 34 | mem_err = -4, | ||
| 35 | buf_err = -5, | ||
| 36 | version_err = -6 | ||
| 37 | }; | ||
| 38 | |||
| 39 | //------------------------------------------------ | ||
| 40 | } // detail | ||
| 41 | } // http_proto | ||
| 42 | namespace system { | ||
| 43 | template<> | ||
| 44 | struct is_error_code_enum< | ||
| 45 | ::boost::http_proto::detail::zlib_error> | ||
| 46 | { | ||
| 47 | static bool const value = true; | ||
| 48 | }; | ||
| 49 | } // system | ||
| 50 | namespace http_proto { | ||
| 51 | namespace detail { | ||
| 52 | //------------------------------------------------ | ||
| 53 | |||
| 54 | error_code | ||
| 55 | ✗ | make_error_code( | |
| 56 | zlib_error ev) noexcept | ||
| 57 | { | ||
| 58 | struct cat_t : error_category | ||
| 59 | { | ||
| 60 | ✗ | cat_t() noexcept | |
| 61 | ✗ | : error_category( | |
| 62 | ✗ | 0xe6c6d0215d1d6e22) | |
| 63 | { | ||
| 64 | } | ||
| 65 | |||
| 66 | const char* | ||
| 67 | ✗ | name() const noexcept override | |
| 68 | { | ||
| 69 | ✗ | return "boost.http.proto.zlib_error"; | |
| 70 | } | ||
| 71 | |||
| 72 | std::string | ||
| 73 | ✗ | message(int ev) const override | |
| 74 | { | ||
| 75 | ✗ | switch(static_cast<zlib_error>(ev)) | |
| 76 | { | ||
| 77 | ✗ | case zlib_error::ok: return "Z_OK"; | |
| 78 | ✗ | case zlib_error::stream_end: return "Z_STREAM_END"; | |
| 79 | ✗ | case zlib_error::need_dict: return "Z_NEED_DICT"; | |
| 80 | ✗ | case zlib_error::errno_: return "Z_ERRNO"; | |
| 81 | ✗ | case zlib_error::stream_err: return "Z_STREAM_ERROR"; | |
| 82 | ✗ | case zlib_error::data_err: return "Z_DATA_ERROR"; | |
| 83 | ✗ | case zlib_error::mem_err: return "Z_MEM_ERROR"; | |
| 84 | ✗ | case zlib_error::buf_err: return "Z_BUF_ERROR"; | |
| 85 | ✗ | case zlib_error::version_err: return "Z_VERSION_ERROR"; | |
| 86 | ✗ | default: | |
| 87 | ✗ | return "unknown"; | |
| 88 | } | ||
| 89 | } | ||
| 90 | }; | ||
| 91 | ✗ | static cat_t const cat{}; | |
| 92 | return error_code{static_cast< | ||
| 93 | std::underlying_type< | ||
| 94 | ✗ | error>::type>(ev), cat}; | |
| 95 | } | ||
| 96 | |||
| 97 | //------------------------------------------------ | ||
| 98 | |||
| 99 | class gzip_decoder : public codec | ||
| 100 | { | ||
| 101 | void* zs_ = nullptr; | ||
| 102 | |||
| 103 | public: | ||
| 104 | ~gzip_decoder() override; | ||
| 105 | gzip_decoder(); | ||
| 106 | |||
| 107 | gzip_decoder( | ||
| 108 | gzip_decoder&&) noexcept; | ||
| 109 | gzip_decoder& operator=( | ||
| 110 | gzip_decoder&&) = delete; | ||
| 111 | |||
| 112 | results | ||
| 113 | exchange( | ||
| 114 | void* output, | ||
| 115 | std::size_t output_size, | ||
| 116 | void const* input, | ||
| 117 | std::size_t input_size) override; | ||
| 118 | }; | ||
| 119 | |||
| 120 | 8 | gzip_decoder:: | |
| 121 | 4 | ~gzip_decoder() | |
| 122 | { | ||
| 123 | 4 | auto zs = reinterpret_cast< | |
| 124 | ::z_stream*>(zs_); | ||
| 125 |
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4 | if(zs) |
| 126 | { | ||
| 127 | 4 | ::inflateEnd(zs); | |
| 128 |
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4 | delete zs; |
| 129 | } | ||
| 130 | 8 | } | |
| 131 | |||
| 132 | 2 | gzip_decoder:: | |
| 133 | 2 | gzip_decoder() | |
| 134 | { | ||
| 135 |
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2 | ::z_stream* zs = new ::z_stream; |
| 136 | 2 | zs->zalloc = nullptr; | |
| 137 | 2 | zs->zfree = nullptr; | |
| 138 | 2 | zs->opaque = nullptr; | |
| 139 |
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2 | int const ec = ::inflateInit(zs); |
| 140 |
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2 | if(ec == Z_OK) |
| 141 | { | ||
| 142 | 2 | zs_ = zs; | |
| 143 | 2 | return; | |
| 144 | } | ||
| 145 | ✗ | delete zs; | |
| 146 | ✗ | throw_exception( | |
| 147 | ✗ | system_error(error_code( | |
| 148 | static_cast<zlib_error>(ec))), | ||
| 149 | ✗ | BOOST_CURRENT_LOCATION); | |
| 150 | } | ||
| 151 | |||
| 152 | ✗ | gzip_decoder:: | |
| 153 | gzip_decoder( | ||
| 154 | ✗ | gzip_decoder&& other) noexcept | |
| 155 | ✗ | : zs_(other.zs_) | |
| 156 | { | ||
| 157 | ✗ | other.zs_ = nullptr; | |
| 158 | } | ||
| 159 | |||
| 160 | auto | ||
| 161 | ✗ | gzip_decoder:: | |
| 162 | exchange( | ||
| 163 | void* output, | ||
| 164 | std::size_t output_size, | ||
| 165 | void const* input, | ||
| 166 | std::size_t input_size) -> | ||
| 167 | results | ||
| 168 | { | ||
| 169 | ✗ | auto zs = reinterpret_cast< | |
| 170 | ::z_stream*>(zs_); | ||
| 171 | // VFALCO zlib seems to need const_cast | ||
| 172 | ✗ | zs->next_in = | |
| 173 | const_cast<Bytef z_const*>( | ||
| 174 | reinterpret_cast< | ||
| 175 | Bytef const*>(input)); | ||
| 176 | ✗ | zs->avail_in = static_cast<uInt>(input_size); | |
| 177 | ✗ | zs->next_out = reinterpret_cast< | |
| 178 | Bytef*>(output); | ||
| 179 | ✗ | zs->avail_out = static_cast<uInt>(output_size); | |
| 180 | ✗ | results rv; | |
| 181 | rv.ec = static_cast<zlib_error>( | ||
| 182 | ✗ | ::inflate(zs, Z_NO_FLUSH)); | |
| 183 | ✗ | rv.input_used = | |
| 184 | ✗ | input_size - zs->avail_in; | |
| 185 | ✗ | rv.output_used = | |
| 186 | ✗ | output_size - zs->avail_out; | |
| 187 | ✗ | return rv; | |
| 188 | } | ||
| 189 | |||
| 190 | //------------------------------------------------ | ||
| 191 | |||
| 192 | class gzip_encoder : public codec | ||
| 193 | { | ||
| 194 | void* zs_ = nullptr; | ||
| 195 | |||
| 196 | public: | ||
| 197 | ~gzip_encoder() override; | ||
| 198 | gzip_encoder(); | ||
| 199 | |||
| 200 | gzip_encoder( | ||
| 201 | gzip_encoder&&) noexcept; | ||
| 202 | gzip_encoder& operator=( | ||
| 203 | gzip_encoder&&) = delete; | ||
| 204 | |||
| 205 | results | ||
| 206 | exchange( | ||
| 207 | void* output, | ||
| 208 | std::size_t output_size, | ||
| 209 | void const* input, | ||
| 210 | std::size_t input_size) override; | ||
| 211 | }; | ||
| 212 | |||
| 213 | ✗ | gzip_encoder:: | |
| 214 | ✗ | ~gzip_encoder() | |
| 215 | { | ||
| 216 | ✗ | auto zs = reinterpret_cast< | |
| 217 | ::z_stream*>(zs_); | ||
| 218 | ✗ | if(zs) | |
| 219 | { | ||
| 220 | ✗ | ::deflateEnd(zs); | |
| 221 | ✗ | delete zs; | |
| 222 | } | ||
| 223 | } | ||
| 224 | |||
| 225 | ✗ | gzip_encoder:: | |
| 226 | ✗ | gzip_encoder() | |
| 227 | { | ||
| 228 | ✗ | ::z_stream* zs = new ::z_stream; | |
| 229 | ✗ | zs->zalloc = nullptr; | |
| 230 | ✗ | zs->zfree = nullptr; | |
| 231 | ✗ | zs->opaque = nullptr; | |
| 232 | ✗ | int const ec = ::deflateInit(zs, | |
| 233 | Z_DEFAULT_COMPRESSION); | ||
| 234 | ✗ | if(ec == Z_OK) | |
| 235 | { | ||
| 236 | ✗ | zs_ = zs; | |
| 237 | ✗ | return; | |
| 238 | } | ||
| 239 | ✗ | delete zs; | |
| 240 | ✗ | throw_exception( | |
| 241 | ✗ | system_error(error_code( | |
| 242 | static_cast<zlib_error>(ec))), | ||
| 243 | ✗ | BOOST_CURRENT_LOCATION); | |
| 244 | } | ||
| 245 | |||
| 246 | ✗ | gzip_encoder:: | |
| 247 | gzip_encoder( | ||
| 248 | ✗ | gzip_encoder&& other) noexcept | |
| 249 | ✗ | : zs_(other.zs_) | |
| 250 | { | ||
| 251 | ✗ | other.zs_ = nullptr; | |
| 252 | } | ||
| 253 | |||
| 254 | auto | ||
| 255 | ✗ | gzip_encoder:: | |
| 256 | exchange( | ||
| 257 | void* output, | ||
| 258 | std::size_t output_size, | ||
| 259 | void const* input, | ||
| 260 | std::size_t input_size) -> | ||
| 261 | results | ||
| 262 | { | ||
| 263 | ✗ | auto zs = reinterpret_cast< | |
| 264 | ::z_stream*>(zs_); | ||
| 265 | // VFALCO zlib seems to need const_cast | ||
| 266 | ✗ | zs->next_in = | |
| 267 | const_cast<Bytef z_const*>( | ||
| 268 | reinterpret_cast< | ||
| 269 | Bytef const*>(input)); | ||
| 270 | ✗ | zs->avail_in = static_cast<uInt>(input_size); | |
| 271 | ✗ | zs->next_out = reinterpret_cast< | |
| 272 | Bytef*>(output); | ||
| 273 | ✗ | zs->avail_out = static_cast<uInt>(output_size); | |
| 274 | ✗ | results rv; | |
| 275 | rv.ec = static_cast<zlib_error>( | ||
| 276 | ✗ | ::deflate(zs, Z_NO_FLUSH)); | |
| 277 | ✗ | rv.input_used = | |
| 278 | ✗ | input_size - zs->avail_in; | |
| 279 | ✗ | rv.output_used = | |
| 280 | ✗ | output_size - zs->avail_out; | |
| 281 | ✗ | return rv; | |
| 282 | } | ||
| 283 | |||
| 284 | //------------------------------------------------ | ||
| 285 | |||
| 286 | class deflate_decoder : public codec | ||
| 287 | { | ||
| 288 | void* zs_ = nullptr; | ||
| 289 | |||
| 290 | public: | ||
| 291 | ~deflate_decoder() override; | ||
| 292 | deflate_decoder(); | ||
| 293 | |||
| 294 | deflate_decoder( | ||
| 295 | deflate_decoder&&) noexcept; | ||
| 296 | deflate_decoder& operator=( | ||
| 297 | deflate_decoder&&) = delete; | ||
| 298 | |||
| 299 | results | ||
| 300 | exchange( | ||
| 301 | void* output, | ||
| 302 | std::size_t output_size, | ||
| 303 | void const* input, | ||
| 304 | std::size_t input_size) override; | ||
| 305 | }; | ||
| 306 | |||
| 307 | ✗ | deflate_decoder:: | |
| 308 | ✗ | ~deflate_decoder() | |
| 309 | { | ||
| 310 | ✗ | auto zs = reinterpret_cast< | |
| 311 | ::z_stream*>(zs_); | ||
| 312 | ✗ | if(zs) | |
| 313 | { | ||
| 314 | ✗ | ::inflateEnd(zs); | |
| 315 | ✗ | delete zs; | |
| 316 | } | ||
| 317 | } | ||
| 318 | |||
| 319 | ✗ | deflate_decoder:: | |
| 320 | ✗ | deflate_decoder() | |
| 321 | { | ||
| 322 | ✗ | ::z_stream* zs = new ::z_stream; | |
| 323 | ✗ | zs->zalloc = nullptr; | |
| 324 | ✗ | zs->zfree = nullptr; | |
| 325 | ✗ | zs->opaque = nullptr; | |
| 326 | ✗ | int const ec = ::inflateInit(zs); | |
| 327 | ✗ | if(ec == Z_OK) | |
| 328 | { | ||
| 329 | ✗ | zs_ = zs; | |
| 330 | ✗ | return; | |
| 331 | } | ||
| 332 | ✗ | delete zs; | |
| 333 | ✗ | throw_exception( | |
| 334 | ✗ | system_error(error_code( | |
| 335 | static_cast<zlib_error>(ec))), | ||
| 336 | ✗ | BOOST_CURRENT_LOCATION); | |
| 337 | } | ||
| 338 | |||
| 339 | ✗ | deflate_decoder:: | |
| 340 | deflate_decoder( | ||
| 341 | ✗ | deflate_decoder&& other) noexcept | |
| 342 | ✗ | : zs_(other.zs_) | |
| 343 | { | ||
| 344 | ✗ | other.zs_ = nullptr; | |
| 345 | } | ||
| 346 | |||
| 347 | auto | ||
| 348 | ✗ | deflate_decoder:: | |
| 349 | exchange( | ||
| 350 | void* output, | ||
| 351 | std::size_t output_size, | ||
| 352 | void const* input, | ||
| 353 | std::size_t input_size) -> | ||
| 354 | results | ||
| 355 | { | ||
| 356 | ✗ | auto zs = reinterpret_cast< | |
| 357 | ::z_stream*>(zs_); | ||
| 358 | // VFALCO zlib seems to need const_cast | ||
| 359 | ✗ | zs->next_in = | |
| 360 | const_cast<Bytef z_const*>( | ||
| 361 | reinterpret_cast< | ||
| 362 | Bytef const*>(input)); | ||
| 363 | ✗ | zs->avail_in = static_cast<uInt>(input_size); | |
| 364 | ✗ | zs->next_out = reinterpret_cast< | |
| 365 | Bytef*>(output); | ||
| 366 | ✗ | zs->avail_out = static_cast<uInt>(output_size); | |
| 367 | ✗ | results rv; | |
| 368 | rv.ec = static_cast<zlib_error>( | ||
| 369 | ✗ | ::inflate(zs, Z_NO_FLUSH)); | |
| 370 | ✗ | rv.input_used = | |
| 371 | ✗ | input_size - zs->avail_in; | |
| 372 | ✗ | rv.output_used = | |
| 373 | ✗ | output_size - zs->avail_out; | |
| 374 | ✗ | return rv; | |
| 375 | } | ||
| 376 | |||
| 377 | //------------------------------------------------ | ||
| 378 | |||
| 379 | class deflate_encoder : public codec | ||
| 380 | { | ||
| 381 | void* zs_ = nullptr; | ||
| 382 | |||
| 383 | public: | ||
| 384 | ~deflate_encoder() override; | ||
| 385 | deflate_encoder(); | ||
| 386 | |||
| 387 | deflate_encoder( | ||
| 388 | deflate_encoder&&) noexcept; | ||
| 389 | deflate_encoder& operator=( | ||
| 390 | deflate_encoder&&) = delete; | ||
| 391 | |||
| 392 | results | ||
| 393 | exchange( | ||
| 394 | void* output, | ||
| 395 | std::size_t output_size, | ||
| 396 | void const* input, | ||
| 397 | std::size_t input_size) override; | ||
| 398 | }; | ||
| 399 | |||
| 400 | ✗ | deflate_encoder:: | |
| 401 | ✗ | ~deflate_encoder() | |
| 402 | { | ||
| 403 | ✗ | auto zs = reinterpret_cast< | |
| 404 | ::z_stream*>(zs_); | ||
| 405 | ✗ | if(zs) | |
| 406 | { | ||
| 407 | ✗ | ::deflateEnd(zs); | |
| 408 | ✗ | delete zs; | |
| 409 | } | ||
| 410 | } | ||
| 411 | |||
| 412 | ✗ | deflate_encoder:: | |
| 413 | ✗ | deflate_encoder() | |
| 414 | { | ||
| 415 | ✗ | ::z_stream* zs = new ::z_stream; | |
| 416 | ✗ | zs->zalloc = nullptr; | |
| 417 | ✗ | zs->zfree = nullptr; | |
| 418 | ✗ | zs->opaque = nullptr; | |
| 419 | ✗ | int const ec = ::deflateInit(zs, | |
| 420 | Z_DEFAULT_COMPRESSION); | ||
| 421 | ✗ | if(ec == Z_OK) | |
| 422 | { | ||
| 423 | ✗ | zs_ = zs; | |
| 424 | ✗ | return; | |
| 425 | } | ||
| 426 | ✗ | delete zs; | |
| 427 | ✗ | throw_exception( | |
| 428 | ✗ | system_error(error_code( | |
| 429 | static_cast<zlib_error>(ec))), | ||
| 430 | ✗ | BOOST_CURRENT_LOCATION); | |
| 431 | } | ||
| 432 | |||
| 433 | ✗ | deflate_encoder:: | |
| 434 | deflate_encoder( | ||
| 435 | ✗ | deflate_encoder&& other) noexcept | |
| 436 | ✗ | : zs_(other.zs_) | |
| 437 | { | ||
| 438 | ✗ | other.zs_ = nullptr; | |
| 439 | } | ||
| 440 | |||
| 441 | auto | ||
| 442 | ✗ | deflate_encoder:: | |
| 443 | exchange( | ||
| 444 | void* output, | ||
| 445 | std::size_t output_size, | ||
| 446 | void const* input, | ||
| 447 | std::size_t input_size) -> | ||
| 448 | results | ||
| 449 | { | ||
| 450 | ✗ | auto zs = reinterpret_cast< | |
| 451 | ::z_stream*>(zs_); | ||
| 452 | // VFALCO zlib seems to need const_cast | ||
| 453 | ✗ | zs->next_in = | |
| 454 | const_cast<Bytef z_const*>( | ||
| 455 | reinterpret_cast< | ||
| 456 | Bytef const*>(input)); | ||
| 457 | ✗ | zs->avail_in = static_cast<uInt>(input_size); | |
| 458 | ✗ | zs->next_out = reinterpret_cast< | |
| 459 | Bytef*>(output); | ||
| 460 | ✗ | zs->avail_out = static_cast<uInt>(output_size); | |
| 461 | ✗ | results rv; | |
| 462 | rv.ec = static_cast<zlib_error>( | ||
| 463 | ✗ | ::deflate(zs, Z_NO_FLUSH)); | |
| 464 | ✗ | rv.input_used = | |
| 465 | ✗ | input_size - zs->avail_in; | |
| 466 | ✗ | rv.output_used = | |
| 467 | ✗ | output_size - zs->avail_out; | |
| 468 | ✗ | return rv; | |
| 469 | } | ||
| 470 | |||
| 471 | } // detail | ||
| 472 | |||
| 473 | //------------------------------------------------ | ||
| 474 | |||
| 475 | void | ||
| 476 | ✗ | parser:: | |
| 477 | apply_param( | ||
| 478 | deflate_decoder_t const&) | ||
| 479 | { | ||
| 480 | ✗ | dec_[deflate_codec].reset( | |
| 481 | ✗ | new detail::deflate_decoder); | |
| 482 | } | ||
| 483 | |||
| 484 | void | ||
| 485 | 2 | parser:: | |
| 486 | apply_param( | ||
| 487 | gzip_decoder_t const&) | ||
| 488 | { | ||
| 489 | 2 | dec_[gzip_codec].reset( | |
| 490 |
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2 | new detail::gzip_decoder); |
| 491 | 2 | } | |
| 492 | |||
| 493 | //------------------------------------------------ | ||
| 494 | |||
| 495 | void | ||
| 496 | ✗ | serializer:: | |
| 497 | apply_param( | ||
| 498 | deflate_decoder_t const&) | ||
| 499 | { | ||
| 500 | ✗ | dec_[deflate_codec].reset( | |
| 501 | ✗ | new detail::deflate_decoder); | |
| 502 | } | ||
| 503 | |||
| 504 | void | ||
| 505 | ✗ | serializer:: | |
| 506 | apply_param( | ||
| 507 | deflate_encoder_t const&) | ||
| 508 | { | ||
| 509 | ✗ | enc_[deflate_codec].reset( | |
| 510 | ✗ | new detail::deflate_encoder); | |
| 511 | } | ||
| 512 | |||
| 513 | void | ||
| 514 | ✗ | serializer:: | |
| 515 | apply_param( | ||
| 516 | gzip_decoder_t const&) | ||
| 517 | { | ||
| 518 | ✗ | dec_[gzip_codec].reset( | |
| 519 | ✗ | new detail::gzip_decoder); | |
| 520 | } | ||
| 521 | |||
| 522 | void | ||
| 523 | ✗ | serializer:: | |
| 524 | apply_param( | ||
| 525 | gzip_encoder_t const&) | ||
| 526 | { | ||
| 527 | ✗ | enc_[gzip_codec].reset( | |
| 528 | ✗ | new detail::gzip_encoder); | |
| 529 | } | ||
| 530 | |||
| 531 | } // http_proto | ||
| 532 | } // boost | ||
| 533 | |||
| 534 | #endif | ||
| 535 | #endif | ||
| 536 |