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| 1 // Copyright (c) 2014 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/http/disk_based_cert_cache.h" | |
| 6 | |
| 7 #include <vector> | |
| 8 | |
| 9 #include "base/bind.h" | |
| 10 #include "base/callback_helpers.h" | |
| 11 #include "base/memory/ref_counted.h" | |
| 12 #include "base/metrics/histogram.h" | |
| 13 #include "base/profiler/scoped_tracker.h" | |
| 14 #include "base/stl_util.h" | |
| 15 #include "base/strings/string_number_conversions.h" | |
| 16 #include "net/base/io_buffer.h" | |
| 17 #include "net/base/net_errors.h" | |
| 18 #include "net/disk_cache/disk_cache.h" | |
| 19 | |
| 20 namespace net { | |
| 21 | |
| 22 namespace { | |
| 23 | |
| 24 // TODO(brandonsalmon): change this number to improve performance. | |
| 25 const size_t kMemoryCacheMaxSize = 30; | |
| 26 | |
| 27 // Used to obtain a unique cache key for a certificate in the form of | |
| 28 // "cert:<hash>". | |
| 29 std::string GetCacheKeyForCert( | |
| 30 const X509Certificate::OSCertHandle cert_handle) { | |
| 31 SHA1HashValue fingerprint = | |
| 32 X509Certificate::CalculateFingerprint(cert_handle); | |
| 33 | |
| 34 return "cert:" + | |
| 35 base::HexEncode(fingerprint.data, arraysize(fingerprint.data)); | |
| 36 } | |
| 37 | |
| 38 enum CacheResult { | |
| 39 MEMORY_CACHE_HIT = 0, | |
| 40 DISK_CACHE_HIT, | |
| 41 DISK_CACHE_ENTRY_CORRUPT, | |
| 42 DISK_CACHE_ERROR, | |
| 43 CACHE_RESULT_MAX | |
| 44 }; | |
| 45 | |
| 46 void RecordCacheResult(CacheResult result) { | |
| 47 UMA_HISTOGRAM_ENUMERATION( | |
| 48 "DiskBasedCertCache.CertIoCacheResult", result, CACHE_RESULT_MAX); | |
| 49 } | |
| 50 | |
| 51 } // namespace | |
| 52 | |
| 53 // WriteWorkers represent pending SetCertificate jobs in the DiskBasedCertCache. | |
| 54 // Each certificate requested to be stored is assigned a WriteWorker. | |
| 55 // The same certificate should not have multiple WriteWorkers at the same | |
| 56 // time; instead, add a user callback to the existing WriteWorker. | |
| 57 class DiskBasedCertCache::WriteWorker { | |
| 58 public: | |
| 59 // |backend| is the backend to store |certificate| in, using | |
| 60 // |key| as the key for the disk_cache::Entry. | |
| 61 // |cleanup_callback| is called to clean up this ReadWorker, | |
| 62 // regardless of success or failure. | |
| 63 WriteWorker(disk_cache::Backend* backend, | |
| 64 const std::string& key, | |
| 65 X509Certificate::OSCertHandle cert_handle, | |
| 66 const base::Closure& cleanup_callback); | |
| 67 | |
| 68 ~WriteWorker(); | |
| 69 | |
| 70 // Writes the given certificate to the cache. On completion, will invoke all | |
| 71 // user callbacks. | |
| 72 void Start(); | |
| 73 | |
| 74 // Adds a callback to the set of callbacks to be run when this | |
| 75 // WriteWorker finishes processing. | |
| 76 void AddCallback(const SetCallback& user_callback); | |
| 77 | |
| 78 // Signals the WriteWorker to abort early. The WriteWorker will be destroyed | |
| 79 // upon the completion of any pending callbacks. User callbacks will be | |
| 80 // invoked with an empty string. | |
| 81 void Cancel(); | |
| 82 | |
| 83 private: | |
| 84 enum State { | |
| 85 STATE_OPEN, | |
| 86 STATE_OPEN_COMPLETE, | |
| 87 STATE_CREATE, | |
| 88 STATE_CREATE_COMPLETE, | |
| 89 STATE_WRITE, | |
| 90 STATE_WRITE_COMPLETE, | |
| 91 STATE_NONE | |
| 92 }; | |
| 93 | |
| 94 void OnIOComplete(int rv); | |
| 95 int DoLoop(int rv); | |
| 96 | |
| 97 int DoOpen(); | |
| 98 int DoOpenComplete(int rv); | |
| 99 int DoCreate(); | |
| 100 int DoCreateComplete(int rv); | |
| 101 int DoWrite(); | |
| 102 int DoWriteComplete(int rv); | |
| 103 | |
| 104 void Finish(int rv); | |
| 105 | |
| 106 // Invokes all of the |user_callbacks_| | |
| 107 void RunCallbacks(int rv); | |
| 108 | |
| 109 disk_cache::Backend* backend_; | |
| 110 const X509Certificate::OSCertHandle cert_handle_; | |
| 111 std::string key_; | |
| 112 bool canceled_; | |
| 113 | |
| 114 disk_cache::Entry* entry_; | |
| 115 State next_state_; | |
| 116 scoped_refptr<IOBuffer> buffer_; | |
| 117 int io_buf_len_; | |
| 118 | |
| 119 base::Closure cleanup_callback_; | |
| 120 std::vector<SetCallback> user_callbacks_; | |
| 121 CompletionCallback io_callback_; | |
| 122 }; | |
| 123 | |
| 124 DiskBasedCertCache::WriteWorker::WriteWorker( | |
| 125 disk_cache::Backend* backend, | |
| 126 const std::string& key, | |
| 127 X509Certificate::OSCertHandle cert_handle, | |
| 128 const base::Closure& cleanup_callback) | |
| 129 : backend_(backend), | |
| 130 cert_handle_(X509Certificate::DupOSCertHandle(cert_handle)), | |
| 131 key_(key), | |
| 132 canceled_(false), | |
| 133 entry_(NULL), | |
| 134 next_state_(STATE_NONE), | |
| 135 io_buf_len_(0), | |
| 136 cleanup_callback_(cleanup_callback), | |
| 137 io_callback_( | |
| 138 base::Bind(&WriteWorker::OnIOComplete, base::Unretained(this))) { | |
| 139 } | |
| 140 | |
| 141 DiskBasedCertCache::WriteWorker::~WriteWorker() { | |
| 142 if (cert_handle_) | |
| 143 X509Certificate::FreeOSCertHandle(cert_handle_); | |
| 144 if (entry_) | |
| 145 entry_->Close(); | |
| 146 } | |
| 147 | |
| 148 void DiskBasedCertCache::WriteWorker::Start() { | |
| 149 DCHECK_EQ(STATE_NONE, next_state_); | |
| 150 | |
| 151 next_state_ = STATE_OPEN; | |
| 152 int rv = DoLoop(OK); | |
| 153 | |
| 154 if (rv == ERR_IO_PENDING) | |
| 155 return; | |
| 156 | |
| 157 Finish(rv); | |
| 158 } | |
| 159 | |
| 160 void DiskBasedCertCache::WriteWorker::AddCallback( | |
| 161 const SetCallback& user_callback) { | |
| 162 user_callbacks_.push_back(user_callback); | |
| 163 } | |
| 164 | |
| 165 void DiskBasedCertCache::WriteWorker::Cancel() { | |
| 166 canceled_ = true; | |
| 167 } | |
| 168 | |
| 169 void DiskBasedCertCache::WriteWorker::OnIOComplete(int rv) { | |
| 170 if (canceled_) { | |
| 171 Finish(ERR_FAILED); | |
| 172 return; | |
| 173 } | |
| 174 | |
| 175 rv = DoLoop(rv); | |
| 176 | |
| 177 if (rv == ERR_IO_PENDING) | |
| 178 return; | |
| 179 | |
| 180 Finish(rv); | |
| 181 } | |
| 182 | |
| 183 int DiskBasedCertCache::WriteWorker::DoLoop(int rv) { | |
| 184 do { | |
| 185 State state = next_state_; | |
| 186 next_state_ = STATE_NONE; | |
| 187 switch (state) { | |
| 188 case STATE_OPEN: | |
| 189 rv = DoOpen(); | |
| 190 break; | |
| 191 case STATE_OPEN_COMPLETE: | |
| 192 rv = DoOpenComplete(rv); | |
| 193 break; | |
| 194 case STATE_CREATE: | |
| 195 rv = DoCreate(); | |
| 196 break; | |
| 197 case STATE_CREATE_COMPLETE: | |
| 198 rv = DoCreateComplete(rv); | |
| 199 break; | |
| 200 case STATE_WRITE: | |
| 201 rv = DoWrite(); | |
| 202 break; | |
| 203 case STATE_WRITE_COMPLETE: | |
| 204 rv = DoWriteComplete(rv); | |
| 205 break; | |
| 206 case STATE_NONE: | |
| 207 NOTREACHED(); | |
| 208 break; | |
| 209 } | |
| 210 } while (rv != ERR_IO_PENDING && next_state_ != STATE_NONE); | |
| 211 | |
| 212 return rv; | |
| 213 } | |
| 214 | |
| 215 int DiskBasedCertCache::WriteWorker::DoOpen() { | |
| 216 next_state_ = STATE_OPEN_COMPLETE; | |
| 217 return backend_->OpenEntry(key_, &entry_, io_callback_); | |
| 218 } | |
| 219 | |
| 220 int DiskBasedCertCache::WriteWorker::DoOpenComplete(int rv) { | |
| 221 // The entry doesn't exist yet, so we should create it. | |
| 222 if (rv < 0) { | |
| 223 next_state_ = STATE_CREATE; | |
| 224 return OK; | |
| 225 } | |
| 226 | |
| 227 next_state_ = STATE_WRITE; | |
| 228 return OK; | |
| 229 } | |
| 230 | |
| 231 int DiskBasedCertCache::WriteWorker::DoCreate() { | |
| 232 next_state_ = STATE_CREATE_COMPLETE; | |
| 233 return backend_->CreateEntry(key_, &entry_, io_callback_); | |
| 234 } | |
| 235 | |
| 236 int DiskBasedCertCache::WriteWorker::DoCreateComplete(int rv) { | |
| 237 if (rv < 0) | |
| 238 return rv; | |
| 239 | |
| 240 next_state_ = STATE_WRITE; | |
| 241 return OK; | |
| 242 } | |
| 243 | |
| 244 int DiskBasedCertCache::WriteWorker::DoWrite() { | |
| 245 std::string write_data; | |
| 246 bool encoded = X509Certificate::GetDEREncoded(cert_handle_, &write_data); | |
| 247 | |
| 248 if (!encoded) | |
| 249 return ERR_FAILED; | |
| 250 | |
| 251 buffer_ = new IOBuffer(write_data.size()); | |
| 252 io_buf_len_ = write_data.size(); | |
| 253 memcpy(buffer_->data(), write_data.data(), io_buf_len_); | |
| 254 | |
| 255 next_state_ = STATE_WRITE_COMPLETE; | |
| 256 | |
| 257 return entry_->WriteData(0 /* index */, | |
| 258 0 /* offset */, | |
| 259 buffer_.get(), | |
| 260 write_data.size(), | |
| 261 io_callback_, | |
| 262 true /* truncate */); | |
| 263 } | |
| 264 | |
| 265 int DiskBasedCertCache::WriteWorker::DoWriteComplete(int rv) { | |
| 266 if (rv < io_buf_len_) | |
| 267 return ERR_FAILED; | |
| 268 | |
| 269 return OK; | |
| 270 } | |
| 271 | |
| 272 void DiskBasedCertCache::WriteWorker::Finish(int rv) { | |
| 273 cleanup_callback_.Run(); | |
| 274 cleanup_callback_.Reset(); | |
| 275 RunCallbacks(rv); | |
| 276 delete this; | |
| 277 } | |
| 278 | |
| 279 void DiskBasedCertCache::WriteWorker::RunCallbacks(int rv) { | |
| 280 std::string key; | |
| 281 if (rv >= 0) | |
| 282 key = key_; | |
| 283 | |
| 284 for (std::vector<SetCallback>::const_iterator it = user_callbacks_.begin(); | |
| 285 it != user_callbacks_.end(); | |
| 286 ++it) { | |
| 287 it->Run(key); | |
| 288 } | |
| 289 user_callbacks_.clear(); | |
| 290 } | |
| 291 | |
| 292 // ReadWorkers represent pending GetCertificate jobs in the DiskBasedCertCache. | |
| 293 // Each certificate requested to be retrieved from the cache is assigned a | |
| 294 // ReadWorker. The same |key| should not have multiple ReadWorkers at the | |
| 295 // same time; instead, call AddCallback to add a user callback to the | |
| 296 // existing ReadWorker. | |
| 297 class DiskBasedCertCache::ReadWorker { | |
| 298 public: | |
| 299 // |backend| is the backend to read |certificate| from, using | |
| 300 // |key| as the key for the disk_cache::Entry. | |
| 301 // |cleanup_callback| is called to clean up this ReadWorker, | |
| 302 // regardless of success or failure. | |
| 303 ReadWorker(disk_cache::Backend* backend, | |
| 304 const std::string& key, | |
| 305 const GetCallback& cleanup_callback); | |
| 306 | |
| 307 ~ReadWorker(); | |
| 308 | |
| 309 // Reads the given certificate from the cache. On completion, will invoke all | |
| 310 // user callbacks. | |
| 311 void Start(); | |
| 312 | |
| 313 // Adds a callback to the set of callbacks to be run when this | |
| 314 // ReadWorker finishes processing. | |
| 315 void AddCallback(const GetCallback& user_callback); | |
| 316 | |
| 317 // Signals the ReadWorker to abort early. The ReadWorker will be destroyed | |
| 318 // upon the completion of any pending callbacks. User callbacks will be | |
| 319 // invoked with a NULL cert handle. | |
| 320 void Cancel(); | |
| 321 | |
| 322 private: | |
| 323 enum State { | |
| 324 STATE_OPEN, | |
| 325 STATE_OPEN_COMPLETE, | |
| 326 STATE_READ, | |
| 327 STATE_READ_COMPLETE, | |
| 328 STATE_NONE | |
| 329 }; | |
| 330 | |
| 331 void OnIOComplete(int rv); | |
| 332 int DoLoop(int rv); | |
| 333 int DoOpen(); | |
| 334 int DoOpenComplete(int rv); | |
| 335 int DoRead(); | |
| 336 int DoReadComplete(int rv); | |
| 337 void Finish(int rv); | |
| 338 | |
| 339 // Invokes all of |user_callbacks_| | |
| 340 void RunCallbacks(); | |
| 341 | |
| 342 disk_cache::Backend* backend_; | |
| 343 X509Certificate::OSCertHandle cert_handle_; | |
| 344 std::string key_; | |
| 345 bool canceled_; | |
| 346 | |
| 347 disk_cache::Entry* entry_; | |
| 348 | |
| 349 State next_state_; | |
| 350 scoped_refptr<IOBuffer> buffer_; | |
| 351 int io_buf_len_; | |
| 352 | |
| 353 GetCallback cleanup_callback_; | |
| 354 std::vector<GetCallback> user_callbacks_; | |
| 355 CompletionCallback io_callback_; | |
| 356 }; | |
| 357 | |
| 358 DiskBasedCertCache::ReadWorker::ReadWorker(disk_cache::Backend* backend, | |
| 359 const std::string& key, | |
| 360 const GetCallback& cleanup_callback) | |
| 361 : backend_(backend), | |
| 362 cert_handle_(NULL), | |
| 363 key_(key), | |
| 364 canceled_(false), | |
| 365 entry_(NULL), | |
| 366 next_state_(STATE_NONE), | |
| 367 io_buf_len_(0), | |
| 368 cleanup_callback_(cleanup_callback), | |
| 369 io_callback_( | |
| 370 base::Bind(&ReadWorker::OnIOComplete, base::Unretained(this))) { | |
| 371 } | |
| 372 | |
| 373 DiskBasedCertCache::ReadWorker::~ReadWorker() { | |
| 374 if (entry_) | |
| 375 entry_->Close(); | |
| 376 if (cert_handle_) | |
| 377 X509Certificate::FreeOSCertHandle(cert_handle_); | |
| 378 } | |
| 379 | |
| 380 void DiskBasedCertCache::ReadWorker::Start() { | |
| 381 DCHECK_EQ(STATE_NONE, next_state_); | |
| 382 next_state_ = STATE_OPEN; | |
| 383 int rv = DoLoop(OK); | |
| 384 | |
| 385 if (rv == ERR_IO_PENDING) | |
| 386 return; | |
| 387 | |
| 388 Finish(rv); | |
| 389 } | |
| 390 | |
| 391 void DiskBasedCertCache::ReadWorker::AddCallback( | |
| 392 const GetCallback& user_callback) { | |
| 393 user_callbacks_.push_back(user_callback); | |
| 394 } | |
| 395 | |
| 396 void DiskBasedCertCache::ReadWorker::Cancel() { | |
| 397 canceled_ = true; | |
| 398 } | |
| 399 | |
| 400 void DiskBasedCertCache::ReadWorker::OnIOComplete(int rv) { | |
| 401 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | |
| 402 tracked_objects::ScopedTracker tracking_profile( | |
| 403 FROM_HERE_WITH_EXPLICIT_FUNCTION( | |
| 404 "422516 DiskBasedCertCache::ReadWorker::OnIOComplete")); | |
| 405 | |
| 406 if (canceled_) { | |
| 407 Finish(ERR_FAILED); | |
| 408 return; | |
| 409 } | |
| 410 | |
| 411 rv = DoLoop(rv); | |
| 412 | |
| 413 if (rv == ERR_IO_PENDING) | |
| 414 return; | |
| 415 | |
| 416 Finish(rv); | |
| 417 } | |
| 418 | |
| 419 int DiskBasedCertCache::ReadWorker::DoLoop(int rv) { | |
| 420 do { | |
| 421 State state = next_state_; | |
| 422 next_state_ = STATE_NONE; | |
| 423 switch (state) { | |
| 424 case STATE_OPEN: | |
| 425 rv = DoOpen(); | |
| 426 break; | |
| 427 case STATE_OPEN_COMPLETE: | |
| 428 rv = DoOpenComplete(rv); | |
| 429 break; | |
| 430 case STATE_READ: | |
| 431 rv = DoRead(); | |
| 432 break; | |
| 433 case STATE_READ_COMPLETE: | |
| 434 rv = DoReadComplete(rv); | |
| 435 break; | |
| 436 case STATE_NONE: | |
| 437 NOTREACHED(); | |
| 438 break; | |
| 439 } | |
| 440 } while (rv != ERR_IO_PENDING && next_state_ != STATE_NONE); | |
| 441 | |
| 442 return rv; | |
| 443 } | |
| 444 | |
| 445 int DiskBasedCertCache::ReadWorker::DoOpen() { | |
| 446 next_state_ = STATE_OPEN_COMPLETE; | |
| 447 return backend_->OpenEntry(key_, &entry_, io_callback_); | |
| 448 } | |
| 449 | |
| 450 int DiskBasedCertCache::ReadWorker::DoOpenComplete(int rv) { | |
| 451 if (rv < 0) { | |
| 452 RecordCacheResult(DISK_CACHE_ERROR); | |
| 453 return rv; | |
| 454 } | |
| 455 | |
| 456 next_state_ = STATE_READ; | |
| 457 return OK; | |
| 458 } | |
| 459 | |
| 460 int DiskBasedCertCache::ReadWorker::DoRead() { | |
| 461 next_state_ = STATE_READ_COMPLETE; | |
| 462 io_buf_len_ = entry_->GetDataSize(0 /* index */); | |
| 463 buffer_ = new IOBuffer(io_buf_len_); | |
| 464 return entry_->ReadData( | |
| 465 0 /* index */, 0 /* offset */, buffer_.get(), io_buf_len_, io_callback_); | |
| 466 } | |
| 467 | |
| 468 int DiskBasedCertCache::ReadWorker::DoReadComplete(int rv) { | |
| 469 // The cache should return the entire buffer length. If it does not, | |
| 470 // it is probably indicative of an issue other than corruption. | |
| 471 if (rv < io_buf_len_) { | |
| 472 RecordCacheResult(DISK_CACHE_ERROR); | |
| 473 return ERR_FAILED; | |
| 474 } | |
| 475 cert_handle_ = X509Certificate::CreateOSCertHandleFromBytes(buffer_->data(), | |
| 476 io_buf_len_); | |
| 477 if (!cert_handle_) { | |
| 478 RecordCacheResult(DISK_CACHE_ENTRY_CORRUPT); | |
| 479 return ERR_FAILED; | |
| 480 } | |
| 481 | |
| 482 RecordCacheResult(DISK_CACHE_HIT); | |
| 483 return OK; | |
| 484 } | |
| 485 | |
| 486 void DiskBasedCertCache::ReadWorker::Finish(int rv) { | |
| 487 cleanup_callback_.Run(cert_handle_); | |
| 488 cleanup_callback_.Reset(); | |
| 489 RunCallbacks(); | |
| 490 delete this; | |
| 491 } | |
| 492 | |
| 493 void DiskBasedCertCache::ReadWorker::RunCallbacks() { | |
| 494 for (std::vector<GetCallback>::const_iterator it = user_callbacks_.begin(); | |
| 495 it != user_callbacks_.end(); | |
| 496 ++it) { | |
| 497 it->Run(cert_handle_); | |
| 498 } | |
| 499 user_callbacks_.clear(); | |
| 500 } | |
| 501 | |
| 502 void DiskBasedCertCache::CertFree::operator()( | |
| 503 X509Certificate::OSCertHandle cert_handle) { | |
| 504 X509Certificate::FreeOSCertHandle(cert_handle); | |
| 505 } | |
| 506 | |
| 507 DiskBasedCertCache::DiskBasedCertCache(disk_cache::Backend* backend) | |
| 508 : backend_(backend), | |
| 509 mru_cert_cache_(kMemoryCacheMaxSize), | |
| 510 mem_cache_hits_(0), | |
| 511 mem_cache_misses_(0), | |
| 512 weak_factory_(this) { | |
| 513 DCHECK(backend_); | |
| 514 } | |
| 515 | |
| 516 DiskBasedCertCache::~DiskBasedCertCache() { | |
| 517 for (WriteWorkerMap::iterator it = write_worker_map_.begin(); | |
| 518 it != write_worker_map_.end(); | |
| 519 ++it) { | |
| 520 it->second->Cancel(); | |
| 521 } | |
| 522 for (ReadWorkerMap::iterator it = read_worker_map_.begin(); | |
| 523 it != read_worker_map_.end(); | |
| 524 ++it) { | |
| 525 it->second->Cancel(); | |
| 526 } | |
| 527 } | |
| 528 | |
| 529 void DiskBasedCertCache::GetCertificate(const std::string& key, | |
| 530 const GetCallback& cb) { | |
| 531 DCHECK(!key.empty()); | |
| 532 | |
| 533 // If the handle is already in the MRU cache, just return that (via callback). | |
| 534 // Note, this will also bring the cert_handle to the front of the recency | |
| 535 // list in the MRU cache. | |
| 536 MRUCertCache::iterator mru_it = mru_cert_cache_.Get(key); | |
| 537 if (mru_it != mru_cert_cache_.end()) { | |
| 538 RecordCacheResult(MEMORY_CACHE_HIT); | |
| 539 ++mem_cache_hits_; | |
| 540 cb.Run(mru_it->second); | |
| 541 return; | |
| 542 } | |
| 543 ++mem_cache_misses_; | |
| 544 | |
| 545 ReadWorkerMap::iterator it = read_worker_map_.find(key); | |
| 546 | |
| 547 if (it == read_worker_map_.end()) { | |
| 548 ReadWorker* worker = | |
| 549 new ReadWorker(backend_, | |
| 550 key, | |
| 551 base::Bind(&DiskBasedCertCache::FinishedReadOperation, | |
| 552 weak_factory_.GetWeakPtr(), | |
| 553 key)); | |
| 554 read_worker_map_[key] = worker; | |
| 555 worker->AddCallback(cb); | |
| 556 worker->Start(); | |
| 557 } else { | |
| 558 it->second->AddCallback(cb); | |
| 559 } | |
| 560 } | |
| 561 | |
| 562 void DiskBasedCertCache::SetCertificate( | |
| 563 const X509Certificate::OSCertHandle cert_handle, | |
| 564 const SetCallback& cb) { | |
| 565 DCHECK(!cb.is_null()); | |
| 566 DCHECK(cert_handle); | |
| 567 std::string key = GetCacheKeyForCert(cert_handle); | |
| 568 | |
| 569 WriteWorkerMap::iterator it = write_worker_map_.find(key); | |
| 570 | |
| 571 if (it == write_worker_map_.end()) { | |
| 572 WriteWorker* worker = | |
| 573 new WriteWorker(backend_, | |
| 574 key, | |
| 575 cert_handle, | |
| 576 base::Bind(&DiskBasedCertCache::FinishedWriteOperation, | |
| 577 weak_factory_.GetWeakPtr(), | |
| 578 key, | |
| 579 cert_handle)); | |
| 580 write_worker_map_[key] = worker; | |
| 581 worker->AddCallback(cb); | |
| 582 worker->Start(); | |
| 583 } else { | |
| 584 it->second->AddCallback(cb); | |
| 585 } | |
| 586 } | |
| 587 | |
| 588 void DiskBasedCertCache::FinishedReadOperation( | |
| 589 const std::string& key, | |
| 590 X509Certificate::OSCertHandle cert_handle) { | |
| 591 if (cert_handle) | |
| 592 mru_cert_cache_.Put(key, X509Certificate::DupOSCertHandle(cert_handle)); | |
| 593 read_worker_map_.erase(key); | |
| 594 } | |
| 595 | |
| 596 void DiskBasedCertCache::FinishedWriteOperation( | |
| 597 const std::string& key, | |
| 598 X509Certificate::OSCertHandle cert_handle) { | |
| 599 write_worker_map_.erase(key); | |
| 600 if (!key.empty()) | |
| 601 mru_cert_cache_.Put(key, X509Certificate::DupOSCertHandle(cert_handle)); | |
| 602 } | |
| 603 | |
| 604 } // namespace net | |
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