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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "net/tools/balsa/balsa_headers.h" | |
| 6 | |
| 7 #include <stdio.h> | |
| 8 | |
| 9 #include <algorithm> | |
| 10 #include <string> | |
| 11 #include <unordered_set> | |
| 12 #include <utility> | |
| 13 #include <vector> | |
| 14 | |
| 15 #include "base/logging.h" | |
| 16 #include "base/strings/string_piece.h" | |
| 17 #include "base/strings/stringprintf.h" | |
| 18 #include "net/tools/balsa/balsa_enums.h" | |
| 19 #include "net/tools/balsa/buffer_interface.h" | |
| 20 #include "net/tools/balsa/simple_buffer.h" | |
| 21 #include "third_party/tcmalloc/chromium/src/base/googleinit.h" | |
| 22 | |
| 23 #if defined(COMPILER_MSVC) | |
| 24 #include <string.h> | |
| 25 #define snprintf _snprintf | |
| 26 #define strncasecmp _strnicmp | |
| 27 #else | |
| 28 #include <strings.h> | |
| 29 #endif | |
| 30 | |
| 31 namespace { | |
| 32 | |
| 33 const char kContentLength[] = "Content-Length"; | |
| 34 const char kTransferEncoding[] = "Transfer-Encoding"; | |
| 35 const char kSpaceChar = ' '; | |
| 36 | |
| 37 std::unordered_set<base::StringPiece, | |
| 38 net::StringPieceCaseHash, | |
| 39 net::StringPieceCaseEqual> | |
| 40 g_multivalued_headers; | |
| 41 | |
| 42 void InitMultivaluedHeaders() { | |
| 43 g_multivalued_headers.insert("accept"); | |
| 44 g_multivalued_headers.insert("accept-charset"); | |
| 45 g_multivalued_headers.insert("accept-encoding"); | |
| 46 g_multivalued_headers.insert("accept-language"); | |
| 47 g_multivalued_headers.insert("accept-ranges"); | |
| 48 g_multivalued_headers.insert("allow"); | |
| 49 g_multivalued_headers.insert("cache-control"); | |
| 50 g_multivalued_headers.insert("connection"); | |
| 51 g_multivalued_headers.insert("content-encoding"); | |
| 52 g_multivalued_headers.insert("content-language"); | |
| 53 g_multivalued_headers.insert("expect"); | |
| 54 g_multivalued_headers.insert("if-match"); | |
| 55 g_multivalued_headers.insert("if-none-match"); | |
| 56 g_multivalued_headers.insert("pragma"); | |
| 57 g_multivalued_headers.insert("proxy-authenticate"); | |
| 58 g_multivalued_headers.insert("te"); | |
| 59 g_multivalued_headers.insert("trailer"); | |
| 60 g_multivalued_headers.insert("transfer-encoding"); | |
| 61 g_multivalued_headers.insert("upgrade"); | |
| 62 g_multivalued_headers.insert("vary"); | |
| 63 g_multivalued_headers.insert("via"); | |
| 64 g_multivalued_headers.insert("warning"); | |
| 65 g_multivalued_headers.insert("www-authenticate"); | |
| 66 // Not mentioned in RFC 2616, but it can have multiple values. | |
| 67 g_multivalued_headers.insert("set-cookie"); | |
| 68 } | |
| 69 | |
| 70 REGISTER_MODULE_INITIALIZER(multivalued_headers, InitMultivaluedHeaders()); | |
| 71 | |
| 72 const int kFastToBufferSize = 32; // I think 22 is adequate, but anyway.. | |
| 73 | |
| 74 } // namespace | |
| 75 | |
| 76 namespace net { | |
| 77 | |
| 78 BalsaHeaders::iterator_base::iterator_base() : headers_(NULL), idx_(0) { } | |
| 79 | |
| 80 BalsaHeaders::iterator_base::iterator_base(const iterator_base& it) | |
| 81 : headers_(it.headers_), | |
| 82 idx_(it.idx_) { | |
| 83 } | |
| 84 | |
| 85 std::ostream& BalsaHeaders::iterator_base::operator<<(std::ostream& os) const { | |
| 86 os << "[" << this->headers_ << ", " << this->idx_ << "]"; | |
| 87 return os; | |
| 88 } | |
| 89 | |
| 90 BalsaHeaders::iterator_base::iterator_base(const BalsaHeaders* headers, | |
| 91 HeaderLines::size_type index) | |
| 92 : headers_(headers), | |
| 93 idx_(index) { | |
| 94 } | |
| 95 | |
| 96 BalsaBuffer::~BalsaBuffer() { | |
| 97 CleanupBlocksStartingFrom(0); | |
| 98 } | |
| 99 | |
| 100 // Returns the total amount of memory used by the buffer blocks. | |
| 101 size_t BalsaBuffer::GetTotalBufferBlockSize() const { | |
| 102 size_t buffer_size = 0; | |
| 103 for (Blocks::const_iterator iter = blocks_.begin(); | |
| 104 iter != blocks_.end(); | |
| 105 ++iter) { | |
| 106 buffer_size += iter->buffer_size; | |
| 107 } | |
| 108 return buffer_size; | |
| 109 } | |
| 110 | |
| 111 void BalsaBuffer::WriteToContiguousBuffer(const base::StringPiece& sp) { | |
| 112 if (sp.empty()) { | |
| 113 return; | |
| 114 } | |
| 115 CHECK(can_write_to_contiguous_buffer_); | |
| 116 DCHECK_GE(blocks_.size(), 1u); | |
| 117 if (blocks_[0].buffer == NULL && sp.size() <= blocksize_) { | |
| 118 blocks_[0] = AllocBlock(); | |
| 119 memcpy(blocks_[0].start_of_unused_bytes(), sp.data(), sp.size()); | |
| 120 } else if (blocks_[0].bytes_free < sp.size()) { | |
| 121 // the first block isn't big enough, resize it. | |
| 122 const size_t old_storage_size_used = blocks_[0].bytes_used(); | |
| 123 const size_t new_storage_size = old_storage_size_used + sp.size(); | |
| 124 char* new_storage = new char[new_storage_size]; | |
| 125 char* old_storage = blocks_[0].buffer; | |
| 126 if (old_storage_size_used) { | |
| 127 memcpy(new_storage, old_storage, old_storage_size_used); | |
| 128 } | |
| 129 memcpy(new_storage + old_storage_size_used, sp.data(), sp.size()); | |
| 130 blocks_[0].buffer = new_storage; | |
| 131 blocks_[0].bytes_free = sp.size(); | |
| 132 blocks_[0].buffer_size = new_storage_size; | |
| 133 delete[] old_storage; | |
| 134 } else { | |
| 135 memcpy(blocks_[0].start_of_unused_bytes(), sp.data(), sp.size()); | |
| 136 } | |
| 137 blocks_[0].bytes_free -= sp.size(); | |
| 138 } | |
| 139 | |
| 140 base::StringPiece BalsaBuffer::Write(const base::StringPiece& sp, | |
| 141 Blocks::size_type* block_buffer_idx) { | |
| 142 if (sp.empty()) { | |
| 143 return sp; | |
| 144 } | |
| 145 char* storage = Reserve(sp.size(), block_buffer_idx); | |
| 146 memcpy(storage, sp.data(), sp.size()); | |
| 147 return base::StringPiece(storage, sp.size()); | |
| 148 } | |
| 149 | |
| 150 char* BalsaBuffer::Reserve(size_t size, | |
| 151 Blocks::size_type* block_buffer_idx) { | |
| 152 // There should always be a 'first_block', even if it | |
| 153 // contains nothing. | |
| 154 DCHECK_GE(blocks_.size(), 1u); | |
| 155 BufferBlock* block = NULL; | |
| 156 Blocks::size_type block_idx = can_write_to_contiguous_buffer_ ? 1 : 0; | |
| 157 for (; block_idx < blocks_.size(); ++block_idx) { | |
| 158 if (blocks_[block_idx].bytes_free >= size) { | |
| 159 block = &blocks_[block_idx]; | |
| 160 break; | |
| 161 } | |
| 162 } | |
| 163 if (block == NULL) { | |
| 164 if (blocksize_ < size) { | |
| 165 blocks_.push_back(AllocCustomBlock(size)); | |
| 166 } else { | |
| 167 blocks_.push_back(AllocBlock()); | |
| 168 } | |
| 169 block = &blocks_.back(); | |
| 170 } | |
| 171 | |
| 172 char* storage = block->start_of_unused_bytes(); | |
| 173 block->bytes_free -= size; | |
| 174 if (block_buffer_idx) { | |
| 175 *block_buffer_idx = block_idx; | |
| 176 } | |
| 177 return storage; | |
| 178 } | |
| 179 | |
| 180 void BalsaBuffer::Clear() { | |
| 181 CHECK(!blocks_.empty()); | |
| 182 if (blocksize_ == blocks_[0].buffer_size) { | |
| 183 CleanupBlocksStartingFrom(1); | |
| 184 blocks_[0].bytes_free = blocks_[0].buffer_size; | |
| 185 } else { | |
| 186 CleanupBlocksStartingFrom(0); | |
| 187 blocks_.push_back(AllocBlock()); | |
| 188 } | |
| 189 DCHECK_GE(blocks_.size(), 1u); | |
| 190 can_write_to_contiguous_buffer_ = true; | |
| 191 } | |
| 192 | |
| 193 void BalsaBuffer::Swap(BalsaBuffer* b) { | |
| 194 blocks_.swap(b->blocks_); | |
| 195 std::swap(can_write_to_contiguous_buffer_, | |
| 196 b->can_write_to_contiguous_buffer_); | |
| 197 std::swap(blocksize_, b->blocksize_); | |
| 198 } | |
| 199 | |
| 200 void BalsaBuffer::CopyFrom(const BalsaBuffer& b) { | |
| 201 CleanupBlocksStartingFrom(0); | |
| 202 blocks_.resize(b.blocks_.size()); | |
| 203 for (Blocks::size_type i = 0; i < blocks_.size(); ++i) { | |
| 204 blocks_[i] = CopyBlock(b.blocks_[i]); | |
| 205 } | |
| 206 blocksize_ = b.blocksize_; | |
| 207 can_write_to_contiguous_buffer_ = b.can_write_to_contiguous_buffer_; | |
| 208 } | |
| 209 | |
| 210 BalsaBuffer::BalsaBuffer() | |
| 211 : blocksize_(kDefaultBlocksize), can_write_to_contiguous_buffer_(true) { | |
| 212 blocks_.push_back(AllocBlock()); | |
| 213 } | |
| 214 | |
| 215 BalsaBuffer::BalsaBuffer(size_t blocksize) : | |
| 216 blocksize_(blocksize), can_write_to_contiguous_buffer_(true) { | |
| 217 blocks_.push_back(AllocBlock()); | |
| 218 } | |
| 219 | |
| 220 BalsaBuffer::BufferBlock BalsaBuffer::AllocBlock() { | |
| 221 return AllocCustomBlock(blocksize_); | |
| 222 } | |
| 223 | |
| 224 BalsaBuffer::BufferBlock BalsaBuffer::AllocCustomBlock(size_t blocksize) { | |
| 225 return BufferBlock(new char[blocksize], blocksize, blocksize); | |
| 226 } | |
| 227 | |
| 228 BalsaBuffer::BufferBlock BalsaBuffer::CopyBlock(const BufferBlock& b) { | |
| 229 BufferBlock block = b; | |
| 230 if (b.buffer == NULL) { | |
| 231 return block; | |
| 232 } | |
| 233 | |
| 234 block.buffer = new char[b.buffer_size]; | |
| 235 memcpy(block.buffer, b.buffer, b.bytes_used()); | |
| 236 return block; | |
| 237 } | |
| 238 | |
| 239 void BalsaBuffer::CleanupBlocksStartingFrom(Blocks::size_type start_idx) { | |
| 240 for (Blocks::size_type i = start_idx; i < blocks_.size(); ++i) { | |
| 241 delete[] blocks_[i].buffer; | |
| 242 } | |
| 243 blocks_.resize(start_idx); | |
| 244 } | |
| 245 | |
| 246 BalsaHeaders::const_header_lines_key_iterator::const_header_lines_key_iterator( | |
| 247 const const_header_lines_key_iterator& other) | |
| 248 : iterator_base(other), | |
| 249 key_(other.key_) { | |
| 250 } | |
| 251 | |
| 252 BalsaHeaders::const_header_lines_key_iterator::const_header_lines_key_iterator( | |
| 253 const BalsaHeaders* headers, | |
| 254 HeaderLines::size_type index, | |
| 255 const base::StringPiece& key) | |
| 256 : iterator_base(headers, index), | |
| 257 key_(key) { | |
| 258 } | |
| 259 | |
| 260 BalsaHeaders::const_header_lines_key_iterator::const_header_lines_key_iterator( | |
| 261 const BalsaHeaders* headers, | |
| 262 HeaderLines::size_type index) | |
| 263 : iterator_base(headers, index) { | |
| 264 } | |
| 265 | |
| 266 BalsaHeaders::BalsaHeaders() | |
| 267 : balsa_buffer_(4096), | |
| 268 content_length_(0), | |
| 269 content_length_status_(BalsaHeadersEnums::NO_CONTENT_LENGTH), | |
| 270 parsed_response_code_(0), | |
| 271 firstline_buffer_base_idx_(0), | |
| 272 whitespace_1_idx_(0), | |
| 273 non_whitespace_1_idx_(0), | |
| 274 whitespace_2_idx_(0), | |
| 275 non_whitespace_2_idx_(0), | |
| 276 whitespace_3_idx_(0), | |
| 277 non_whitespace_3_idx_(0), | |
| 278 whitespace_4_idx_(0), | |
| 279 end_of_firstline_idx_(0), | |
| 280 transfer_encoding_is_chunked_(false) { | |
| 281 } | |
| 282 | |
| 283 BalsaHeaders::~BalsaHeaders() {} | |
| 284 | |
| 285 void BalsaHeaders::Clear() { | |
| 286 balsa_buffer_.Clear(); | |
| 287 transfer_encoding_is_chunked_ = false; | |
| 288 content_length_ = 0; | |
| 289 content_length_status_ = BalsaHeadersEnums::NO_CONTENT_LENGTH; | |
| 290 parsed_response_code_ = 0; | |
| 291 firstline_buffer_base_idx_ = 0; | |
| 292 whitespace_1_idx_ = 0; | |
| 293 non_whitespace_1_idx_ = 0; | |
| 294 whitespace_2_idx_ = 0; | |
| 295 non_whitespace_2_idx_ = 0; | |
| 296 whitespace_3_idx_ = 0; | |
| 297 non_whitespace_3_idx_ = 0; | |
| 298 whitespace_4_idx_ = 0; | |
| 299 end_of_firstline_idx_ = 0; | |
| 300 header_lines_.clear(); | |
| 301 } | |
| 302 | |
| 303 void BalsaHeaders::Swap(BalsaHeaders* other) { | |
| 304 // Protect against swapping with self. | |
| 305 if (this == other) return; | |
| 306 | |
| 307 balsa_buffer_.Swap(&other->balsa_buffer_); | |
| 308 | |
| 309 bool tmp_bool = transfer_encoding_is_chunked_; | |
| 310 transfer_encoding_is_chunked_ = other->transfer_encoding_is_chunked_; | |
| 311 other->transfer_encoding_is_chunked_ = tmp_bool; | |
| 312 | |
| 313 size_t tmp_size_t = content_length_; | |
| 314 content_length_ = other->content_length_; | |
| 315 other->content_length_ = tmp_size_t; | |
| 316 | |
| 317 BalsaHeadersEnums::ContentLengthStatus tmp_status = | |
| 318 content_length_status_; | |
| 319 content_length_status_ = other->content_length_status_; | |
| 320 other->content_length_status_ = tmp_status; | |
| 321 | |
| 322 tmp_size_t = parsed_response_code_; | |
| 323 parsed_response_code_ = other->parsed_response_code_; | |
| 324 other->parsed_response_code_ = tmp_size_t; | |
| 325 | |
| 326 BalsaBuffer::Blocks::size_type tmp_blk_idx = firstline_buffer_base_idx_; | |
| 327 firstline_buffer_base_idx_ = other->firstline_buffer_base_idx_; | |
| 328 other->firstline_buffer_base_idx_ = tmp_blk_idx; | |
| 329 | |
| 330 tmp_size_t = whitespace_1_idx_; | |
| 331 whitespace_1_idx_ = other->whitespace_1_idx_; | |
| 332 other->whitespace_1_idx_ = tmp_size_t; | |
| 333 | |
| 334 tmp_size_t = non_whitespace_1_idx_; | |
| 335 non_whitespace_1_idx_ = other->non_whitespace_1_idx_; | |
| 336 other->non_whitespace_1_idx_ = tmp_size_t; | |
| 337 | |
| 338 tmp_size_t = whitespace_2_idx_; | |
| 339 whitespace_2_idx_ = other->whitespace_2_idx_; | |
| 340 other->whitespace_2_idx_ = tmp_size_t; | |
| 341 | |
| 342 tmp_size_t = non_whitespace_2_idx_; | |
| 343 non_whitespace_2_idx_ = other->non_whitespace_2_idx_; | |
| 344 other->non_whitespace_2_idx_ = tmp_size_t; | |
| 345 | |
| 346 tmp_size_t = whitespace_3_idx_; | |
| 347 whitespace_3_idx_ = other->whitespace_3_idx_; | |
| 348 other->whitespace_3_idx_ = tmp_size_t; | |
| 349 | |
| 350 tmp_size_t = non_whitespace_3_idx_; | |
| 351 non_whitespace_3_idx_ = other->non_whitespace_3_idx_; | |
| 352 other->non_whitespace_3_idx_ = tmp_size_t; | |
| 353 | |
| 354 tmp_size_t = whitespace_4_idx_; | |
| 355 whitespace_4_idx_ = other->whitespace_4_idx_; | |
| 356 other->whitespace_4_idx_ = tmp_size_t; | |
| 357 | |
| 358 tmp_size_t = end_of_firstline_idx_; | |
| 359 end_of_firstline_idx_ = other->end_of_firstline_idx_; | |
| 360 other->end_of_firstline_idx_ = tmp_size_t; | |
| 361 | |
| 362 swap(header_lines_, other->header_lines_); | |
| 363 } | |
| 364 | |
| 365 void BalsaHeaders::CopyFrom(const BalsaHeaders& other) { | |
| 366 // Protect against copying with self. | |
| 367 if (this == &other) return; | |
| 368 | |
| 369 balsa_buffer_.CopyFrom(other.balsa_buffer_); | |
| 370 transfer_encoding_is_chunked_ = other.transfer_encoding_is_chunked_; | |
| 371 content_length_ = other.content_length_; | |
| 372 content_length_status_ = other.content_length_status_; | |
| 373 parsed_response_code_ = other.parsed_response_code_; | |
| 374 firstline_buffer_base_idx_ = other.firstline_buffer_base_idx_; | |
| 375 whitespace_1_idx_ = other.whitespace_1_idx_; | |
| 376 non_whitespace_1_idx_ = other.non_whitespace_1_idx_; | |
| 377 whitespace_2_idx_ = other.whitespace_2_idx_; | |
| 378 non_whitespace_2_idx_ = other.non_whitespace_2_idx_; | |
| 379 whitespace_3_idx_ = other.whitespace_3_idx_; | |
| 380 non_whitespace_3_idx_ = other.non_whitespace_3_idx_; | |
| 381 whitespace_4_idx_ = other.whitespace_4_idx_; | |
| 382 end_of_firstline_idx_ = other.end_of_firstline_idx_; | |
| 383 header_lines_ = other.header_lines_; | |
| 384 } | |
| 385 | |
| 386 void BalsaHeaders::AddAndMakeDescription(const base::StringPiece& key, | |
| 387 const base::StringPiece& value, | |
| 388 HeaderLineDescription* d) { | |
| 389 CHECK(d != NULL); | |
| 390 // + 2 to size for ": " | |
| 391 size_t line_size = key.size() + 2 + value.size(); | |
| 392 BalsaBuffer::Blocks::size_type block_buffer_idx = 0; | |
| 393 char* storage = balsa_buffer_.Reserve(line_size, &block_buffer_idx); | |
| 394 size_t base_idx = storage - GetPtr(block_buffer_idx); | |
| 395 | |
| 396 char* cur_loc = storage; | |
| 397 memcpy(cur_loc, key.data(), key.size()); | |
| 398 cur_loc += key.size(); | |
| 399 *cur_loc = ':'; | |
| 400 ++cur_loc; | |
| 401 *cur_loc = ' '; | |
| 402 ++cur_loc; | |
| 403 memcpy(cur_loc, value.data(), value.size()); | |
| 404 *d = HeaderLineDescription(base_idx, | |
| 405 base_idx + key.size(), | |
| 406 base_idx + key.size() + 2, | |
| 407 base_idx + key.size() + 2 + value.size(), | |
| 408 block_buffer_idx); | |
| 409 } | |
| 410 | |
| 411 void BalsaHeaders::AppendOrPrependAndMakeDescription( | |
| 412 const base::StringPiece& key, | |
| 413 const base::StringPiece& value, | |
| 414 bool append, | |
| 415 HeaderLineDescription* d) { | |
| 416 // Figure out how much space we need to reserve for the new header size. | |
| 417 size_t old_value_size = d->last_char_idx - d->value_begin_idx; | |
| 418 if (old_value_size == 0) { | |
| 419 AddAndMakeDescription(key, value, d); | |
| 420 return; | |
| 421 } | |
| 422 base::StringPiece old_value(GetPtr(d->buffer_base_idx) + d->value_begin_idx, | |
| 423 old_value_size); | |
| 424 | |
| 425 BalsaBuffer::Blocks::size_type block_buffer_idx = 0; | |
| 426 // + 3 because we potentially need to add ": ", and "," to the line. | |
| 427 size_t new_size = key.size() + 3 + old_value_size + value.size(); | |
| 428 char* storage = balsa_buffer_.Reserve(new_size, &block_buffer_idx); | |
| 429 size_t base_idx = storage - GetPtr(block_buffer_idx); | |
| 430 | |
| 431 base::StringPiece first_value = old_value; | |
| 432 base::StringPiece second_value = value; | |
| 433 if (!append) { // !append == prepend | |
| 434 first_value = value; | |
| 435 second_value = old_value; | |
| 436 } | |
| 437 char* cur_loc = storage; | |
| 438 memcpy(cur_loc, key.data(), key.size()); | |
| 439 cur_loc += key.size(); | |
| 440 *cur_loc = ':'; | |
| 441 ++cur_loc; | |
| 442 *cur_loc = ' '; | |
| 443 ++cur_loc; | |
| 444 memcpy(cur_loc, first_value.data(), first_value.size()); | |
| 445 cur_loc += first_value.size(); | |
| 446 *cur_loc = ','; | |
| 447 ++cur_loc; | |
| 448 memcpy(cur_loc, second_value.data(), second_value.size()); | |
| 449 | |
| 450 *d = HeaderLineDescription(base_idx, | |
| 451 base_idx + key.size(), | |
| 452 base_idx + key.size() + 2, | |
| 453 base_idx + new_size, | |
| 454 block_buffer_idx); | |
| 455 } | |
| 456 | |
| 457 // Removes all keys value pairs with key 'key' starting at 'start'. | |
| 458 void BalsaHeaders::RemoveAllOfHeaderStartingAt(const base::StringPiece& key, | |
| 459 HeaderLines::iterator start) { | |
| 460 while (start != header_lines_.end()) { | |
| 461 start->skip = true; | |
| 462 ++start; | |
| 463 start = GetHeaderLinesIterator(key, start); | |
| 464 } | |
| 465 } | |
| 466 | |
| 467 void BalsaHeaders::HackHeader(const base::StringPiece& key, | |
| 468 const base::StringPiece& value) { | |
| 469 // See TODO in balsa_headers.h | |
| 470 const HeaderLines::iterator end = header_lines_.end(); | |
| 471 const HeaderLines::iterator begin = header_lines_.begin(); | |
| 472 HeaderLines::iterator i = GetHeaderLinesIteratorNoSkip(key, begin); | |
| 473 if (i != end) { | |
| 474 // First, remove all of the header lines including this one. We want to | |
| 475 // remove before replacing, in case our replacement ends up being appended | |
| 476 // at the end (and thus would be removed by this call) | |
| 477 RemoveAllOfHeaderStartingAt(key, i); | |
| 478 // Now add the replacement, at this location. | |
| 479 AddAndMakeDescription(key, value, &(*i)); | |
| 480 return; | |
| 481 } | |
| 482 AppendHeader(key, value); | |
| 483 } | |
| 484 | |
| 485 void BalsaHeaders::HackAppendToHeader(const base::StringPiece& key, | |
| 486 const base::StringPiece& append_value) { | |
| 487 // See TODO in balsa_headers.h | |
| 488 const HeaderLines::iterator end = header_lines_.end(); | |
| 489 const HeaderLines::iterator begin = header_lines_.begin(); | |
| 490 | |
| 491 HeaderLines::iterator i = GetHeaderLinesIterator(key, begin); | |
| 492 if (i == end) { | |
| 493 HackHeader(key, append_value); | |
| 494 return; | |
| 495 } | |
| 496 | |
| 497 AppendOrPrependAndMakeDescription(key, append_value, true, &(*i)); | |
| 498 } | |
| 499 | |
| 500 void BalsaHeaders::ReplaceOrAppendHeader(const base::StringPiece& key, | |
| 501 const base::StringPiece& value) { | |
| 502 const HeaderLines::iterator end = header_lines_.end(); | |
| 503 const HeaderLines::iterator begin = header_lines_.begin(); | |
| 504 HeaderLines::iterator i = GetHeaderLinesIterator(key, begin); | |
| 505 if (i != end) { | |
| 506 // First, remove all of the header lines including this one. We want to | |
| 507 // remove before replacing, in case our replacement ends up being appended | |
| 508 // at the end (and thus would be removed by this call) | |
| 509 RemoveAllOfHeaderStartingAt(key, i); | |
| 510 // Now, take the first instance and replace it. This will remove the | |
| 511 // 'skipped' tag if the replacement is done in-place. | |
| 512 AddAndMakeDescription(key, value, &(*i)); | |
| 513 return; | |
| 514 } | |
| 515 AppendHeader(key, value); | |
| 516 } | |
| 517 | |
| 518 void BalsaHeaders::AppendHeader(const base::StringPiece& key, | |
| 519 const base::StringPiece& value) { | |
| 520 HeaderLineDescription hld; | |
| 521 AddAndMakeDescription(key, value, &hld); | |
| 522 header_lines_.push_back(hld); | |
| 523 } | |
| 524 | |
| 525 void BalsaHeaders::AppendToHeader(const base::StringPiece& key, | |
| 526 const base::StringPiece& value) { | |
| 527 AppendOrPrependToHeader(key, value, true); | |
| 528 } | |
| 529 | |
| 530 void BalsaHeaders::PrependToHeader(const base::StringPiece& key, | |
| 531 const base::StringPiece& value) { | |
| 532 AppendOrPrependToHeader(key, value, false); | |
| 533 } | |
| 534 | |
| 535 base::StringPiece BalsaHeaders::GetValueFromHeaderLineDescription( | |
| 536 const HeaderLineDescription& line) const { | |
| 537 DCHECK_GE(line.last_char_idx, line.value_begin_idx); | |
| 538 return base::StringPiece(GetPtr(line.buffer_base_idx) + line.value_begin_idx, | |
| 539 line.last_char_idx - line.value_begin_idx); | |
| 540 } | |
| 541 | |
| 542 const base::StringPiece BalsaHeaders::GetHeader( | |
| 543 const base::StringPiece& key) const { | |
| 544 DCHECK(!IsMultivaluedHeader(key)) | |
| 545 << "Header '" << key << "' may consist of multiple lines. Do not " | |
| 546 << "use BalsaHeaders::GetHeader() or you may be missing some of its " | |
| 547 << "values."; | |
| 548 const HeaderLines::const_iterator end = header_lines_.end(); | |
| 549 const HeaderLines::const_iterator begin = header_lines_.begin(); | |
| 550 HeaderLines::const_iterator i = GetConstHeaderLinesIterator(key, begin); | |
| 551 if (i == end) { | |
| 552 return base::StringPiece(); | |
| 553 } | |
| 554 return GetValueFromHeaderLineDescription(*i); | |
| 555 } | |
| 556 | |
| 557 BalsaHeaders::const_header_lines_iterator BalsaHeaders::GetHeaderPosition( | |
| 558 const base::StringPiece& key) const { | |
| 559 const HeaderLines::const_iterator end = header_lines_.end(); | |
| 560 const HeaderLines::const_iterator begin = header_lines_.begin(); | |
| 561 HeaderLines::const_iterator i = GetConstHeaderLinesIterator(key, begin); | |
| 562 if (i == end) { | |
| 563 return header_lines_end(); | |
| 564 } | |
| 565 | |
| 566 return const_header_lines_iterator(this, (i - begin)); | |
| 567 } | |
| 568 | |
| 569 BalsaHeaders::const_header_lines_key_iterator BalsaHeaders::GetIteratorForKey( | |
| 570 const base::StringPiece& key) const { | |
| 571 HeaderLines::const_iterator i = | |
| 572 GetConstHeaderLinesIterator(key, header_lines_.begin()); | |
| 573 if (i == header_lines_.end()) { | |
| 574 return header_lines_key_end(); | |
| 575 } | |
| 576 | |
| 577 const HeaderLines::const_iterator begin = header_lines_.begin(); | |
| 578 return const_header_lines_key_iterator(this, (i - begin), key); | |
| 579 } | |
| 580 | |
| 581 void BalsaHeaders::AppendOrPrependToHeader(const base::StringPiece& key, | |
| 582 const base::StringPiece& value, | |
| 583 bool append) { | |
| 584 HeaderLines::iterator i = GetHeaderLinesIterator(key, header_lines_.begin()); | |
| 585 if (i == header_lines_.end()) { | |
| 586 // The header did not exist already. Instead of appending to an existing | |
| 587 // header simply append the key/value pair to the headers. | |
| 588 AppendHeader(key, value); | |
| 589 return; | |
| 590 } | |
| 591 HeaderLineDescription hld = *i; | |
| 592 | |
| 593 AppendOrPrependAndMakeDescription(key, value, append, &hld); | |
| 594 | |
| 595 // Invalidate the old header line and add the new one. | |
| 596 i->skip = true; | |
| 597 header_lines_.push_back(hld); | |
| 598 } | |
| 599 | |
| 600 BalsaHeaders::HeaderLines::const_iterator | |
| 601 BalsaHeaders::GetConstHeaderLinesIterator( | |
| 602 const base::StringPiece& key, | |
| 603 BalsaHeaders::HeaderLines::const_iterator start) const { | |
| 604 const HeaderLines::const_iterator end = header_lines_.end(); | |
| 605 for (HeaderLines::const_iterator i = start; i != end; ++i) { | |
| 606 const HeaderLineDescription& line = *i; | |
| 607 if (line.skip) { | |
| 608 continue; | |
| 609 } | |
| 610 const size_t key_len = line.key_end_idx - line.first_char_idx; | |
| 611 | |
| 612 if (key_len != key.size()) { | |
| 613 continue; | |
| 614 } | |
| 615 if (strncasecmp(GetPtr(line.buffer_base_idx) + line.first_char_idx, | |
| 616 key.data(), key_len) == 0) { | |
| 617 DCHECK_GE(line.last_char_idx, line.value_begin_idx); | |
| 618 return i; | |
| 619 } | |
| 620 } | |
| 621 return end; | |
| 622 } | |
| 623 | |
| 624 BalsaHeaders::HeaderLines::iterator BalsaHeaders::GetHeaderLinesIteratorNoSkip( | |
| 625 const base::StringPiece& key, | |
| 626 BalsaHeaders::HeaderLines::iterator start) { | |
| 627 const HeaderLines::iterator end = header_lines_.end(); | |
| 628 for (HeaderLines::iterator i = start; i != end; ++i) { | |
| 629 const HeaderLineDescription& line = *i; | |
| 630 const size_t key_len = line.key_end_idx - line.first_char_idx; | |
| 631 | |
| 632 if (key_len != key.size()) { | |
| 633 continue; | |
| 634 } | |
| 635 if (strncasecmp(GetPtr(line.buffer_base_idx) + line.first_char_idx, | |
| 636 key.data(), key_len) == 0) { | |
| 637 DCHECK_GE(line.last_char_idx, line.value_begin_idx); | |
| 638 return i; | |
| 639 } | |
| 640 } | |
| 641 return end; | |
| 642 } | |
| 643 | |
| 644 BalsaHeaders::HeaderLines::iterator BalsaHeaders::GetHeaderLinesIterator( | |
| 645 const base::StringPiece& key, | |
| 646 BalsaHeaders::HeaderLines::iterator start) { | |
| 647 const HeaderLines::iterator end = header_lines_.end(); | |
| 648 for (HeaderLines::iterator i = start; i != end; ++i) { | |
| 649 const HeaderLineDescription& line = *i; | |
| 650 if (line.skip) { | |
| 651 continue; | |
| 652 } | |
| 653 const size_t key_len = line.key_end_idx - line.first_char_idx; | |
| 654 | |
| 655 if (key_len != key.size()) { | |
| 656 continue; | |
| 657 } | |
| 658 if (strncasecmp(GetPtr(line.buffer_base_idx) + line.first_char_idx, | |
| 659 key.data(), key_len) == 0) { | |
| 660 DCHECK_GE(line.last_char_idx, line.value_begin_idx); | |
| 661 return i; | |
| 662 } | |
| 663 } | |
| 664 return end; | |
| 665 } | |
| 666 | |
| 667 void BalsaHeaders::GetAllOfHeader( | |
| 668 const base::StringPiece& key, std::vector<base::StringPiece>* out) const { | |
| 669 for (const_header_lines_key_iterator it = GetIteratorForKey(key); | |
| 670 it != header_lines_end(); ++it) { | |
| 671 out->push_back(it->second); | |
| 672 } | |
| 673 } | |
| 674 | |
| 675 bool BalsaHeaders::HasNonEmptyHeader(const base::StringPiece& key) const { | |
| 676 for (const_header_lines_key_iterator it = GetIteratorForKey(key); | |
| 677 it != header_lines_key_end(); ++it) { | |
| 678 if (!it->second.empty()) | |
| 679 return true; | |
| 680 } | |
| 681 return false; | |
| 682 } | |
| 683 | |
| 684 void BalsaHeaders::GetAllOfHeaderAsString(const base::StringPiece& key, | |
| 685 std::string* out) const { | |
| 686 const_header_lines_iterator it = header_lines_begin(); | |
| 687 const_header_lines_iterator end = header_lines_end(); | |
| 688 | |
| 689 for (; it != end; ++it) { | |
| 690 if (key == it->first) { | |
| 691 if (!out->empty()) { | |
| 692 out->append(","); | |
| 693 } | |
| 694 out->append(std::string(it->second.data(), it->second.size())); | |
| 695 } | |
| 696 } | |
| 697 } | |
| 698 | |
| 699 // static | |
| 700 bool BalsaHeaders::IsMultivaluedHeader(const base::StringPiece& header) { | |
| 701 return g_multivalued_headers.find(header) != g_multivalued_headers.end(); | |
| 702 } | |
| 703 | |
| 704 void BalsaHeaders::RemoveAllOfHeader(const base::StringPiece& key) { | |
| 705 HeaderLines::iterator it = GetHeaderLinesIterator(key, header_lines_.begin()); | |
| 706 RemoveAllOfHeaderStartingAt(key, it); | |
| 707 } | |
| 708 | |
| 709 void BalsaHeaders::RemoveAllHeadersWithPrefix(const base::StringPiece& key) { | |
| 710 for (HeaderLines::size_type i = 0; i < header_lines_.size(); ++i) { | |
| 711 if (header_lines_[i].skip) { | |
| 712 continue; | |
| 713 } | |
| 714 HeaderLineDescription& line = header_lines_[i]; | |
| 715 const size_t key_len = line.key_end_idx - line.first_char_idx; | |
| 716 if (key_len < key.size()) { | |
| 717 // If the key given to us is longer than this header, don't consider it. | |
| 718 continue; | |
| 719 } | |
| 720 if (!strncasecmp(GetPtr(line.buffer_base_idx) + line.first_char_idx, | |
| 721 key.data(), key.size())) { | |
| 722 line.skip = true; | |
| 723 } | |
| 724 } | |
| 725 } | |
| 726 | |
| 727 size_t BalsaHeaders::GetMemoryUsedLowerBound() const { | |
| 728 return (sizeof(*this) + | |
| 729 balsa_buffer_.GetTotalBufferBlockSize() + | |
| 730 header_lines_.capacity() * sizeof(HeaderLineDescription)); | |
| 731 } | |
| 732 | |
| 733 size_t BalsaHeaders::GetSizeForWriteBuffer() const { | |
| 734 // First add the space required for the first line + CRLF | |
| 735 size_t write_buf_size = whitespace_4_idx_ - non_whitespace_1_idx_ + 2; | |
| 736 // Then add the space needed for each header line to write out + CRLF. | |
| 737 const HeaderLines::size_type end = header_lines_.size(); | |
| 738 for (HeaderLines::size_type i = 0; i < end; ++i) { | |
| 739 const HeaderLineDescription& line = header_lines_[i]; | |
| 740 if (!line.skip) { | |
| 741 // Add the key size and ": ". | |
| 742 write_buf_size += line.key_end_idx - line.first_char_idx + 2; | |
| 743 // Add the value size and the CRLF | |
| 744 write_buf_size += line.last_char_idx - line.value_begin_idx + 2; | |
| 745 } | |
| 746 } | |
| 747 // Finally tag on the terminal CRLF. | |
| 748 return write_buf_size + 2; | |
| 749 } | |
| 750 | |
| 751 void BalsaHeaders::DumpToString(std::string* str) const { | |
| 752 const base::StringPiece firstline = first_line(); | |
| 753 const int buffer_length = | |
| 754 OriginalHeaderStreamEnd() - OriginalHeaderStreamBegin(); | |
| 755 // First check whether the header object is empty. | |
| 756 if (firstline.empty() && buffer_length == 0) { | |
| 757 str->append("\n<empty header>\n"); | |
| 758 return; | |
| 759 } | |
| 760 | |
| 761 // Then check whether the header is in a partially parsed state. If so, just | |
| 762 // dump the raw data. | |
| 763 if (balsa_buffer_.can_write_to_contiguous_buffer()) { | |
| 764 base::StringAppendF(str, "\n<incomplete header len: %d>\n%.*s\n", | |
| 765 buffer_length, buffer_length, | |
| 766 OriginalHeaderStreamBegin()); | |
| 767 return; | |
| 768 } | |
| 769 | |
| 770 DumpHeadersToString(str); | |
| 771 } | |
| 772 | |
| 773 std::string BalsaHeaders::DebugString() const { | |
| 774 std::string s; | |
| 775 DumpToString(&s); | |
| 776 return s; | |
| 777 } | |
| 778 | |
| 779 void BalsaHeaders::DumpHeadersToString(std::string* str) const { | |
| 780 const base::StringPiece firstline = first_line(); | |
| 781 // If the header is complete, then just dump them with the logical key value | |
| 782 // pair. | |
| 783 str->reserve(str->size() + GetSizeForWriteBuffer()); | |
| 784 base::StringAppendF(str, "\n %.*s\n", | |
| 785 static_cast<int>(firstline.size()), | |
| 786 firstline.data()); | |
| 787 BalsaHeaders::const_header_lines_iterator i = header_lines_begin(); | |
| 788 for (; i != header_lines_end(); ++i) { | |
| 789 base::StringAppendF(str, " %.*s: %.*s\n", | |
| 790 static_cast<int>(i->first.size()), i->first.data(), | |
| 791 static_cast<int>(i->second.size()), i->second.data()); | |
| 792 } | |
| 793 } | |
| 794 | |
| 795 void BalsaHeaders::SetFirstLine(const base::StringPiece& line) { | |
| 796 base::StringPiece new_line = balsa_buffer_.Write(line, | |
| 797 &firstline_buffer_base_idx_); | |
| 798 whitespace_1_idx_ = new_line.data() - GetPtr(firstline_buffer_base_idx_); | |
| 799 non_whitespace_1_idx_ = whitespace_1_idx_; | |
| 800 whitespace_4_idx_ = whitespace_1_idx_ + line.size(); | |
| 801 whitespace_2_idx_ = whitespace_4_idx_; | |
| 802 non_whitespace_2_idx_ = whitespace_4_idx_; | |
| 803 whitespace_3_idx_ = whitespace_4_idx_; | |
| 804 non_whitespace_3_idx_ = whitespace_4_idx_; | |
| 805 end_of_firstline_idx_ = whitespace_4_idx_; | |
| 806 } | |
| 807 | |
| 808 void BalsaHeaders::SetContentLength(size_t length) { | |
| 809 // If the content-length is already the one we want, don't do anything. | |
| 810 if (content_length_status_ == BalsaHeadersEnums::VALID_CONTENT_LENGTH && | |
| 811 content_length_ == length) { | |
| 812 return; | |
| 813 } | |
| 814 const base::StringPiece content_length(kContentLength, | |
| 815 sizeof(kContentLength) - 1); | |
| 816 // If header state indicates that there is either a content length or | |
| 817 // transfer encoding header, remove them before adding the new content | |
| 818 // length. There is always the possibility that client can manually add | |
| 819 // either header directly and cause content_length_status_ or | |
| 820 // transfer_encoding_is_chunked_ to be inconsistent with the actual header. | |
| 821 // In the interest of efficiency, however, we will assume that clients will | |
| 822 // use the header object correctly and thus we will not scan the all headers | |
| 823 // each time this function is called. | |
| 824 if (content_length_status_ != BalsaHeadersEnums::NO_CONTENT_LENGTH) { | |
| 825 RemoveAllOfHeader(content_length); | |
| 826 } else if (transfer_encoding_is_chunked_) { | |
| 827 const base::StringPiece transfer_encoding(kTransferEncoding, | |
| 828 sizeof(kTransferEncoding) - 1); | |
| 829 RemoveAllOfHeader(transfer_encoding); | |
| 830 transfer_encoding_is_chunked_ = false; | |
| 831 } | |
| 832 content_length_status_ = BalsaHeadersEnums::VALID_CONTENT_LENGTH; | |
| 833 content_length_ = length; | |
| 834 // FastUInt64ToBuffer is supposed to use a maximum of kFastToBufferSize bytes. | |
| 835 char buffer[kFastToBufferSize]; | |
| 836 int len_converted = snprintf(buffer, sizeof(buffer), "%zd", length); | |
| 837 CHECK_GT(len_converted, 0); | |
| 838 const base::StringPiece length_str(buffer, len_converted); | |
| 839 AppendHeader(content_length, length_str); | |
| 840 } | |
| 841 | |
| 842 void BalsaHeaders::SetChunkEncoding(bool chunk_encode) { | |
| 843 if (transfer_encoding_is_chunked_ == chunk_encode) { | |
| 844 return; | |
| 845 } | |
| 846 if (content_length_status_ != BalsaHeadersEnums::NO_CONTENT_LENGTH && | |
| 847 chunk_encode) { | |
| 848 // Want to change to chunk encoding, but have content length. Arguably we | |
| 849 // can leave this step out, since transfer-encoding overrides | |
| 850 // content-length. | |
| 851 const base::StringPiece content_length(kContentLength, | |
| 852 sizeof(kContentLength) - 1); | |
| 853 RemoveAllOfHeader(content_length); | |
| 854 content_length_status_ = BalsaHeadersEnums::NO_CONTENT_LENGTH; | |
| 855 content_length_ = 0; | |
| 856 } | |
| 857 const base::StringPiece transfer_encoding(kTransferEncoding, | |
| 858 sizeof(kTransferEncoding) - 1); | |
| 859 if (chunk_encode) { | |
| 860 const char kChunked[] = "chunked"; | |
| 861 const base::StringPiece chunked(kChunked, sizeof(kChunked) - 1); | |
| 862 AppendHeader(transfer_encoding, chunked); | |
| 863 } else { | |
| 864 RemoveAllOfHeader(transfer_encoding); | |
| 865 } | |
| 866 transfer_encoding_is_chunked_ = chunk_encode; | |
| 867 } | |
| 868 | |
| 869 // See the comment about this function in the header file for a | |
| 870 // warning about its usage. | |
| 871 void BalsaHeaders::SetFirstlineFromStringPieces( | |
| 872 const base::StringPiece& firstline_a, | |
| 873 const base::StringPiece& firstline_b, | |
| 874 const base::StringPiece& firstline_c) { | |
| 875 size_t line_size = (firstline_a.size() + | |
| 876 firstline_b.size() + | |
| 877 firstline_c.size() + | |
| 878 2); | |
| 879 char* storage = balsa_buffer_.Reserve(line_size, &firstline_buffer_base_idx_); | |
| 880 char* cur_loc = storage; | |
| 881 | |
| 882 memcpy(cur_loc, firstline_a.data(), firstline_a.size()); | |
| 883 cur_loc += firstline_a.size(); | |
| 884 | |
| 885 *cur_loc = ' '; | |
| 886 ++cur_loc; | |
| 887 | |
| 888 memcpy(cur_loc, firstline_b.data(), firstline_b.size()); | |
| 889 cur_loc += firstline_b.size(); | |
| 890 | |
| 891 *cur_loc = ' '; | |
| 892 ++cur_loc; | |
| 893 | |
| 894 memcpy(cur_loc, firstline_c.data(), firstline_c.size()); | |
| 895 | |
| 896 whitespace_1_idx_ = storage - GetPtr(firstline_buffer_base_idx_); | |
| 897 non_whitespace_1_idx_ = whitespace_1_idx_; | |
| 898 whitespace_2_idx_ = non_whitespace_1_idx_ + firstline_a.size(); | |
| 899 non_whitespace_2_idx_ = whitespace_2_idx_ + 1; | |
| 900 whitespace_3_idx_ = non_whitespace_2_idx_ + firstline_b.size(); | |
| 901 non_whitespace_3_idx_ = whitespace_3_idx_ + 1; | |
| 902 whitespace_4_idx_ = non_whitespace_3_idx_ + firstline_c.size(); | |
| 903 end_of_firstline_idx_ = whitespace_4_idx_; | |
| 904 } | |
| 905 | |
| 906 void BalsaHeaders::SetRequestMethod(const base::StringPiece& method) { | |
| 907 // This is the first of the three parts of the firstline. | |
| 908 if (method.size() <= (whitespace_2_idx_ - non_whitespace_1_idx_)) { | |
| 909 non_whitespace_1_idx_ = whitespace_2_idx_ - method.size(); | |
| 910 char* stream_begin = GetPtr(firstline_buffer_base_idx_); | |
| 911 memcpy(stream_begin + non_whitespace_1_idx_, | |
| 912 method.data(), | |
| 913 method.size()); | |
| 914 } else { | |
| 915 // The new method is too large to fit in the space available for the old | |
| 916 // one, so we have to reformat the firstline. | |
| 917 SetFirstlineFromStringPieces(method, request_uri(), request_version()); | |
| 918 } | |
| 919 } | |
| 920 | |
| 921 void BalsaHeaders::SetResponseVersion(const base::StringPiece& version) { | |
| 922 // Note: There is no difference between request_method() and | |
| 923 // response_Version(). Thus, a function to set one is equivalent to a | |
| 924 // function to set the other. We maintain two functions for this as it is | |
| 925 // much more descriptive, and makes code more understandable. | |
| 926 SetRequestMethod(version); | |
| 927 } | |
| 928 | |
| 929 void BalsaHeaders::SetRequestUri(const base::StringPiece& uri) { | |
| 930 SetFirstlineFromStringPieces(request_method(), uri, request_version()); | |
| 931 } | |
| 932 | |
| 933 void BalsaHeaders::SetResponseCode(const base::StringPiece& code) { | |
| 934 // Note: There is no difference between request_uri() and response_code(). | |
| 935 // Thus, a function to set one is equivalent to a function to set the other. | |
| 936 // We maintain two functions for this as it is much more descriptive, and | |
| 937 // makes code more understandable. | |
| 938 SetRequestUri(code); | |
| 939 } | |
| 940 | |
| 941 void BalsaHeaders::SetParsedResponseCodeAndUpdateFirstline( | |
| 942 size_t parsed_response_code) { | |
| 943 char buffer[kFastToBufferSize]; | |
| 944 int len_converted = snprintf(buffer, sizeof(buffer), | |
| 945 "%zd", parsed_response_code); | |
| 946 CHECK_GT(len_converted, 0); | |
| 947 SetResponseCode(base::StringPiece(buffer, len_converted)); | |
| 948 } | |
| 949 | |
| 950 void BalsaHeaders::SetRequestVersion(const base::StringPiece& version) { | |
| 951 // This is the last of the three parts of the firstline. | |
| 952 // Since whitespace_3_idx and non_whitespace_3_idx may point to the same | |
| 953 // place, we ensure below that any available space includes space for a | |
| 954 // litteral space (' ') character between the second component and the third | |
| 955 // component. If the space between whitespace_3_idx_ and | |
| 956 // end_of_firstline_idx_ is >= to version.size() + 1 (for the space), then we | |
| 957 // can update the firstline in-place. | |
| 958 char* stream_begin = GetPtr(firstline_buffer_base_idx_); | |
| 959 if (version.size() + 1 <= end_of_firstline_idx_ - whitespace_3_idx_) { | |
| 960 *(stream_begin + whitespace_3_idx_) = kSpaceChar; | |
| 961 non_whitespace_3_idx_ = whitespace_3_idx_ + 1; | |
| 962 whitespace_4_idx_ = non_whitespace_3_idx_ + version.size(); | |
| 963 memcpy(stream_begin + non_whitespace_3_idx_, | |
| 964 version.data(), | |
| 965 version.size()); | |
| 966 } else { | |
| 967 // The new version is to large to fit in the space available for the old | |
| 968 // one, so we have to reformat the firstline. | |
| 969 SetFirstlineFromStringPieces(request_method(), request_uri(), version); | |
| 970 } | |
| 971 } | |
| 972 | |
| 973 void BalsaHeaders::SetResponseReasonPhrase(const base::StringPiece& reason) { | |
| 974 // Note: There is no difference between request_version() and | |
| 975 // response_reason_phrase(). Thus, a function to set one is equivalent to a | |
| 976 // function to set the other. We maintain two functions for this as it is | |
| 977 // much more descriptive, and makes code more understandable. | |
| 978 SetRequestVersion(reason); | |
| 979 } | |
| 980 | |
| 981 } // namespace net | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2477703002:
Remove now unused Balsa code. (Closed)
