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| 1 // Copyright (c) 2012 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 "webkit/browser/appcache/appcache_database.h" | |
| 6 | |
| 7 #include "base/auto_reset.h" | |
| 8 #include "base/bind.h" | |
| 9 #include "base/command_line.h" | |
| 10 #include "base/file_util.h" | |
| 11 #include "base/logging.h" | |
| 12 #include "base/strings/utf_string_conversions.h" | |
| 13 #include "sql/connection.h" | |
| 14 #include "sql/error_delegate_util.h" | |
| 15 #include "sql/meta_table.h" | |
| 16 #include "sql/statement.h" | |
| 17 #include "sql/transaction.h" | |
| 18 #include "webkit/browser/appcache/appcache_entry.h" | |
| 19 #include "webkit/browser/appcache/appcache_histograms.h" | |
| 20 | |
| 21 namespace appcache { | |
| 22 | |
| 23 // Schema ------------------------------------------------------------------- | |
| 24 namespace { | |
| 25 | |
| 26 #if defined(APPCACHE_USE_SIMPLE_CACHE) | |
| 27 const int kCurrentVersion = 6; | |
| 28 const int kCompatibleVersion = 6; | |
| 29 #else | |
| 30 const int kCurrentVersion = 5; | |
| 31 const int kCompatibleVersion = 5; | |
| 32 #endif | |
| 33 | |
| 34 // A mechanism to run experiments that may affect in data being persisted | |
| 35 // in different ways such that when the experiment is toggled on/off via | |
| 36 // cmd line flags, the database gets reset. The active flags are stored at | |
| 37 // the time of database creation and compared when reopening. If different | |
| 38 // the database is reset. | |
| 39 const char kExperimentFlagsKey[] = "ExperimentFlags"; | |
| 40 | |
| 41 const char kGroupsTable[] = "Groups"; | |
| 42 const char kCachesTable[] = "Caches"; | |
| 43 const char kEntriesTable[] = "Entries"; | |
| 44 const char kNamespacesTable[] = "Namespaces"; | |
| 45 const char kOnlineWhiteListsTable[] = "OnlineWhiteLists"; | |
| 46 const char kDeletableResponseIdsTable[] = "DeletableResponseIds"; | |
| 47 | |
| 48 struct TableInfo { | |
| 49 const char* table_name; | |
| 50 const char* columns; | |
| 51 }; | |
| 52 | |
| 53 struct IndexInfo { | |
| 54 const char* index_name; | |
| 55 const char* table_name; | |
| 56 const char* columns; | |
| 57 bool unique; | |
| 58 }; | |
| 59 | |
| 60 const TableInfo kTables[] = { | |
| 61 { kGroupsTable, | |
| 62 "(group_id INTEGER PRIMARY KEY," | |
| 63 " origin TEXT," | |
| 64 " manifest_url TEXT," | |
| 65 " creation_time INTEGER," | |
| 66 " last_access_time INTEGER)" }, | |
| 67 | |
| 68 { kCachesTable, | |
| 69 "(cache_id INTEGER PRIMARY KEY," | |
| 70 " group_id INTEGER," | |
| 71 " online_wildcard INTEGER CHECK(online_wildcard IN (0, 1))," | |
| 72 " update_time INTEGER," | |
| 73 " cache_size INTEGER)" }, // intentionally not normalized | |
| 74 | |
| 75 { kEntriesTable, | |
| 76 "(cache_id INTEGER," | |
| 77 " url TEXT," | |
| 78 " flags INTEGER," | |
| 79 " response_id INTEGER," | |
| 80 " response_size INTEGER)" }, | |
| 81 | |
| 82 { kNamespacesTable, | |
| 83 "(cache_id INTEGER," | |
| 84 " origin TEXT," // intentionally not normalized | |
| 85 " type INTEGER," | |
| 86 " namespace_url TEXT," | |
| 87 " target_url TEXT," | |
| 88 " is_pattern INTEGER CHECK(is_pattern IN (0, 1)))" }, | |
| 89 | |
| 90 { kOnlineWhiteListsTable, | |
| 91 "(cache_id INTEGER," | |
| 92 " namespace_url TEXT," | |
| 93 " is_pattern INTEGER CHECK(is_pattern IN (0, 1)))" }, | |
| 94 | |
| 95 { kDeletableResponseIdsTable, | |
| 96 "(response_id INTEGER NOT NULL)" }, | |
| 97 }; | |
| 98 | |
| 99 const IndexInfo kIndexes[] = { | |
| 100 { "GroupsOriginIndex", | |
| 101 kGroupsTable, | |
| 102 "(origin)", | |
| 103 false }, | |
| 104 | |
| 105 { "GroupsManifestIndex", | |
| 106 kGroupsTable, | |
| 107 "(manifest_url)", | |
| 108 true }, | |
| 109 | |
| 110 { "CachesGroupIndex", | |
| 111 kCachesTable, | |
| 112 "(group_id)", | |
| 113 false }, | |
| 114 | |
| 115 { "EntriesCacheIndex", | |
| 116 kEntriesTable, | |
| 117 "(cache_id)", | |
| 118 false }, | |
| 119 | |
| 120 { "EntriesCacheAndUrlIndex", | |
| 121 kEntriesTable, | |
| 122 "(cache_id, url)", | |
| 123 true }, | |
| 124 | |
| 125 { "EntriesResponseIdIndex", | |
| 126 kEntriesTable, | |
| 127 "(response_id)", | |
| 128 true }, | |
| 129 | |
| 130 { "NamespacesCacheIndex", | |
| 131 kNamespacesTable, | |
| 132 "(cache_id)", | |
| 133 false }, | |
| 134 | |
| 135 { "NamespacesOriginIndex", | |
| 136 kNamespacesTable, | |
| 137 "(origin)", | |
| 138 false }, | |
| 139 | |
| 140 { "NamespacesCacheAndUrlIndex", | |
| 141 kNamespacesTable, | |
| 142 "(cache_id, namespace_url)", | |
| 143 true }, | |
| 144 | |
| 145 { "OnlineWhiteListCacheIndex", | |
| 146 kOnlineWhiteListsTable, | |
| 147 "(cache_id)", | |
| 148 false }, | |
| 149 | |
| 150 { "DeletableResponsesIdIndex", | |
| 151 kDeletableResponseIdsTable, | |
| 152 "(response_id)", | |
| 153 true }, | |
| 154 }; | |
| 155 | |
| 156 const int kTableCount = ARRAYSIZE_UNSAFE(kTables); | |
| 157 const int kIndexCount = ARRAYSIZE_UNSAFE(kIndexes); | |
| 158 | |
| 159 bool CreateTable(sql::Connection* db, const TableInfo& info) { | |
| 160 std::string sql("CREATE TABLE "); | |
| 161 sql += info.table_name; | |
| 162 sql += info.columns; | |
| 163 return db->Execute(sql.c_str()); | |
| 164 } | |
| 165 | |
| 166 bool CreateIndex(sql::Connection* db, const IndexInfo& info) { | |
| 167 std::string sql; | |
| 168 if (info.unique) | |
| 169 sql += "CREATE UNIQUE INDEX "; | |
| 170 else | |
| 171 sql += "CREATE INDEX "; | |
| 172 sql += info.index_name; | |
| 173 sql += " ON "; | |
| 174 sql += info.table_name; | |
| 175 sql += info.columns; | |
| 176 return db->Execute(sql.c_str()); | |
| 177 } | |
| 178 | |
| 179 std::string GetActiveExperimentFlags() { | |
| 180 if (CommandLine::ForCurrentProcess()->HasSwitch(kEnableExecutableHandlers)) | |
| 181 return std::string("executableHandlersEnabled"); | |
| 182 return std::string(); | |
| 183 } | |
| 184 | |
| 185 } // anon namespace | |
| 186 | |
| 187 // AppCacheDatabase ---------------------------------------------------------- | |
| 188 | |
| 189 AppCacheDatabase::GroupRecord::GroupRecord() | |
| 190 : group_id(0) { | |
| 191 } | |
| 192 | |
| 193 AppCacheDatabase::GroupRecord::~GroupRecord() { | |
| 194 } | |
| 195 | |
| 196 AppCacheDatabase::NamespaceRecord::NamespaceRecord() | |
| 197 : cache_id(0) { | |
| 198 } | |
| 199 | |
| 200 AppCacheDatabase::NamespaceRecord::~NamespaceRecord() { | |
| 201 } | |
| 202 | |
| 203 | |
| 204 AppCacheDatabase::AppCacheDatabase(const base::FilePath& path) | |
| 205 : db_file_path_(path), | |
| 206 is_disabled_(false), | |
| 207 is_recreating_(false), | |
| 208 was_corruption_detected_(false) { | |
| 209 } | |
| 210 | |
| 211 AppCacheDatabase::~AppCacheDatabase() { | |
| 212 } | |
| 213 | |
| 214 void AppCacheDatabase::Disable() { | |
| 215 VLOG(1) << "Disabling appcache database."; | |
| 216 is_disabled_ = true; | |
| 217 ResetConnectionAndTables(); | |
| 218 } | |
| 219 | |
| 220 int64 AppCacheDatabase::GetOriginUsage(const GURL& origin) { | |
| 221 std::vector<CacheRecord> records; | |
| 222 if (!FindCachesForOrigin(origin, &records)) | |
| 223 return 0; | |
| 224 | |
| 225 int64 origin_usage = 0; | |
| 226 std::vector<CacheRecord>::const_iterator iter = records.begin(); | |
| 227 while (iter != records.end()) { | |
| 228 origin_usage += iter->cache_size; | |
| 229 ++iter; | |
| 230 } | |
| 231 return origin_usage; | |
| 232 } | |
| 233 | |
| 234 bool AppCacheDatabase::GetAllOriginUsage(std::map<GURL, int64>* usage_map) { | |
| 235 std::set<GURL> origins; | |
| 236 if (!FindOriginsWithGroups(&origins)) | |
| 237 return false; | |
| 238 for (std::set<GURL>::const_iterator origin = origins.begin(); | |
| 239 origin != origins.end(); ++origin) { | |
| 240 (*usage_map)[*origin] = GetOriginUsage(*origin); | |
| 241 } | |
| 242 return true; | |
| 243 } | |
| 244 | |
| 245 bool AppCacheDatabase::FindOriginsWithGroups(std::set<GURL>* origins) { | |
| 246 DCHECK(origins && origins->empty()); | |
| 247 if (!LazyOpen(false)) | |
| 248 return false; | |
| 249 | |
| 250 const char* kSql = | |
| 251 "SELECT DISTINCT(origin) FROM Groups"; | |
| 252 | |
| 253 sql::Statement statement(db_->GetUniqueStatement(kSql)); | |
| 254 | |
| 255 while (statement.Step()) | |
| 256 origins->insert(GURL(statement.ColumnString(0))); | |
| 257 | |
| 258 return statement.Succeeded(); | |
| 259 } | |
| 260 | |
| 261 bool AppCacheDatabase::FindLastStorageIds( | |
| 262 int64* last_group_id, int64* last_cache_id, int64* last_response_id, | |
| 263 int64* last_deletable_response_rowid) { | |
| 264 DCHECK(last_group_id && last_cache_id && last_response_id && | |
| 265 last_deletable_response_rowid); | |
| 266 | |
| 267 *last_group_id = 0; | |
| 268 *last_cache_id = 0; | |
| 269 *last_response_id = 0; | |
| 270 *last_deletable_response_rowid = 0; | |
| 271 | |
| 272 if (!LazyOpen(false)) | |
| 273 return false; | |
| 274 | |
| 275 const char* kMaxGroupIdSql = "SELECT MAX(group_id) FROM Groups"; | |
| 276 const char* kMaxCacheIdSql = "SELECT MAX(cache_id) FROM Caches"; | |
| 277 const char* kMaxResponseIdFromEntriesSql = | |
| 278 "SELECT MAX(response_id) FROM Entries"; | |
| 279 const char* kMaxResponseIdFromDeletablesSql = | |
| 280 "SELECT MAX(response_id) FROM DeletableResponseIds"; | |
| 281 const char* kMaxDeletableResponseRowIdSql = | |
| 282 "SELECT MAX(rowid) FROM DeletableResponseIds"; | |
| 283 int64 max_group_id; | |
| 284 int64 max_cache_id; | |
| 285 int64 max_response_id_from_entries; | |
| 286 int64 max_response_id_from_deletables; | |
| 287 int64 max_deletable_response_rowid; | |
| 288 if (!RunUniqueStatementWithInt64Result(kMaxGroupIdSql, &max_group_id) || | |
| 289 !RunUniqueStatementWithInt64Result(kMaxCacheIdSql, &max_cache_id) || | |
| 290 !RunUniqueStatementWithInt64Result(kMaxResponseIdFromEntriesSql, | |
| 291 &max_response_id_from_entries) || | |
| 292 !RunUniqueStatementWithInt64Result(kMaxResponseIdFromDeletablesSql, | |
| 293 &max_response_id_from_deletables) || | |
| 294 !RunUniqueStatementWithInt64Result(kMaxDeletableResponseRowIdSql, | |
| 295 &max_deletable_response_rowid)) { | |
| 296 return false; | |
| 297 } | |
| 298 | |
| 299 *last_group_id = max_group_id; | |
| 300 *last_cache_id = max_cache_id; | |
| 301 *last_response_id = std::max(max_response_id_from_entries, | |
| 302 max_response_id_from_deletables); | |
| 303 *last_deletable_response_rowid = max_deletable_response_rowid; | |
| 304 return true; | |
| 305 } | |
| 306 | |
| 307 bool AppCacheDatabase::FindGroup(int64 group_id, GroupRecord* record) { | |
| 308 DCHECK(record); | |
| 309 if (!LazyOpen(false)) | |
| 310 return false; | |
| 311 | |
| 312 const char* kSql = | |
| 313 "SELECT group_id, origin, manifest_url," | |
| 314 " creation_time, last_access_time" | |
| 315 " FROM Groups WHERE group_id = ?"; | |
| 316 | |
| 317 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 318 | |
| 319 statement.BindInt64(0, group_id); | |
| 320 if (!statement.Step()) | |
| 321 return false; | |
| 322 | |
| 323 ReadGroupRecord(statement, record); | |
| 324 DCHECK(record->group_id == group_id); | |
| 325 return true; | |
| 326 } | |
| 327 | |
| 328 bool AppCacheDatabase::FindGroupForManifestUrl( | |
| 329 const GURL& manifest_url, GroupRecord* record) { | |
| 330 DCHECK(record); | |
| 331 if (!LazyOpen(false)) | |
| 332 return false; | |
| 333 | |
| 334 const char* kSql = | |
| 335 "SELECT group_id, origin, manifest_url," | |
| 336 " creation_time, last_access_time" | |
| 337 " FROM Groups WHERE manifest_url = ?"; | |
| 338 | |
| 339 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 340 statement.BindString(0, manifest_url.spec()); | |
| 341 | |
| 342 if (!statement.Step()) | |
| 343 return false; | |
| 344 | |
| 345 ReadGroupRecord(statement, record); | |
| 346 DCHECK(record->manifest_url == manifest_url); | |
| 347 return true; | |
| 348 } | |
| 349 | |
| 350 bool AppCacheDatabase::FindGroupsForOrigin( | |
| 351 const GURL& origin, std::vector<GroupRecord>* records) { | |
| 352 DCHECK(records && records->empty()); | |
| 353 if (!LazyOpen(false)) | |
| 354 return false; | |
| 355 | |
| 356 const char* kSql = | |
| 357 "SELECT group_id, origin, manifest_url," | |
| 358 " creation_time, last_access_time" | |
| 359 " FROM Groups WHERE origin = ?"; | |
| 360 | |
| 361 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 362 statement.BindString(0, origin.spec()); | |
| 363 | |
| 364 while (statement.Step()) { | |
| 365 records->push_back(GroupRecord()); | |
| 366 ReadGroupRecord(statement, &records->back()); | |
| 367 DCHECK(records->back().origin == origin); | |
| 368 } | |
| 369 | |
| 370 return statement.Succeeded(); | |
| 371 } | |
| 372 | |
| 373 bool AppCacheDatabase::FindGroupForCache(int64 cache_id, GroupRecord* record) { | |
| 374 DCHECK(record); | |
| 375 if (!LazyOpen(false)) | |
| 376 return false; | |
| 377 | |
| 378 const char* kSql = | |
| 379 "SELECT g.group_id, g.origin, g.manifest_url," | |
| 380 " g.creation_time, g.last_access_time" | |
| 381 " FROM Groups g, Caches c" | |
| 382 " WHERE c.cache_id = ? AND c.group_id = g.group_id"; | |
| 383 | |
| 384 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 385 statement.BindInt64(0, cache_id); | |
| 386 | |
| 387 if (!statement.Step()) | |
| 388 return false; | |
| 389 | |
| 390 ReadGroupRecord(statement, record); | |
| 391 return true; | |
| 392 } | |
| 393 | |
| 394 bool AppCacheDatabase::UpdateGroupLastAccessTime( | |
| 395 int64 group_id, base::Time time) { | |
| 396 if (!LazyOpen(true)) | |
| 397 return false; | |
| 398 | |
| 399 const char* kSql = | |
| 400 "UPDATE Groups SET last_access_time = ? WHERE group_id = ?"; | |
| 401 | |
| 402 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 403 statement.BindInt64(0, time.ToInternalValue()); | |
| 404 statement.BindInt64(1, group_id); | |
| 405 | |
| 406 return statement.Run() && db_->GetLastChangeCount(); | |
| 407 } | |
| 408 | |
| 409 bool AppCacheDatabase::InsertGroup(const GroupRecord* record) { | |
| 410 if (!LazyOpen(true)) | |
| 411 return false; | |
| 412 | |
| 413 const char* kSql = | |
| 414 "INSERT INTO Groups" | |
| 415 " (group_id, origin, manifest_url, creation_time, last_access_time)" | |
| 416 " VALUES(?, ?, ?, ?, ?)"; | |
| 417 | |
| 418 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 419 statement.BindInt64(0, record->group_id); | |
| 420 statement.BindString(1, record->origin.spec()); | |
| 421 statement.BindString(2, record->manifest_url.spec()); | |
| 422 statement.BindInt64(3, record->creation_time.ToInternalValue()); | |
| 423 statement.BindInt64(4, record->last_access_time.ToInternalValue()); | |
| 424 | |
| 425 return statement.Run(); | |
| 426 } | |
| 427 | |
| 428 bool AppCacheDatabase::DeleteGroup(int64 group_id) { | |
| 429 if (!LazyOpen(false)) | |
| 430 return false; | |
| 431 | |
| 432 const char* kSql = | |
| 433 "DELETE FROM Groups WHERE group_id = ?"; | |
| 434 | |
| 435 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 436 statement.BindInt64(0, group_id); | |
| 437 | |
| 438 return statement.Run(); | |
| 439 } | |
| 440 | |
| 441 bool AppCacheDatabase::FindCache(int64 cache_id, CacheRecord* record) { | |
| 442 DCHECK(record); | |
| 443 if (!LazyOpen(false)) | |
| 444 return false; | |
| 445 | |
| 446 const char* kSql = | |
| 447 "SELECT cache_id, group_id, online_wildcard, update_time, cache_size" | |
| 448 " FROM Caches WHERE cache_id = ?"; | |
| 449 | |
| 450 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 451 statement.BindInt64(0, cache_id); | |
| 452 | |
| 453 if (!statement.Step()) | |
| 454 return false; | |
| 455 | |
| 456 ReadCacheRecord(statement, record); | |
| 457 return true; | |
| 458 } | |
| 459 | |
| 460 bool AppCacheDatabase::FindCacheForGroup(int64 group_id, CacheRecord* record) { | |
| 461 DCHECK(record); | |
| 462 if (!LazyOpen(false)) | |
| 463 return false; | |
| 464 | |
| 465 const char* kSql = | |
| 466 "SELECT cache_id, group_id, online_wildcard, update_time, cache_size" | |
| 467 " FROM Caches WHERE group_id = ?"; | |
| 468 | |
| 469 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 470 statement.BindInt64(0, group_id); | |
| 471 | |
| 472 if (!statement.Step()) | |
| 473 return false; | |
| 474 | |
| 475 ReadCacheRecord(statement, record); | |
| 476 return true; | |
| 477 } | |
| 478 | |
| 479 bool AppCacheDatabase::FindCachesForOrigin( | |
| 480 const GURL& origin, std::vector<CacheRecord>* records) { | |
| 481 DCHECK(records); | |
| 482 std::vector<GroupRecord> group_records; | |
| 483 if (!FindGroupsForOrigin(origin, &group_records)) | |
| 484 return false; | |
| 485 | |
| 486 CacheRecord cache_record; | |
| 487 std::vector<GroupRecord>::const_iterator iter = group_records.begin(); | |
| 488 while (iter != group_records.end()) { | |
| 489 if (FindCacheForGroup(iter->group_id, &cache_record)) | |
| 490 records->push_back(cache_record); | |
| 491 ++iter; | |
| 492 } | |
| 493 return true; | |
| 494 } | |
| 495 | |
| 496 bool AppCacheDatabase::InsertCache(const CacheRecord* record) { | |
| 497 if (!LazyOpen(true)) | |
| 498 return false; | |
| 499 | |
| 500 const char* kSql = | |
| 501 "INSERT INTO Caches (cache_id, group_id, online_wildcard," | |
| 502 " update_time, cache_size)" | |
| 503 " VALUES(?, ?, ?, ?, ?)"; | |
| 504 | |
| 505 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 506 statement.BindInt64(0, record->cache_id); | |
| 507 statement.BindInt64(1, record->group_id); | |
| 508 statement.BindBool(2, record->online_wildcard); | |
| 509 statement.BindInt64(3, record->update_time.ToInternalValue()); | |
| 510 statement.BindInt64(4, record->cache_size); | |
| 511 | |
| 512 return statement.Run(); | |
| 513 } | |
| 514 | |
| 515 bool AppCacheDatabase::DeleteCache(int64 cache_id) { | |
| 516 if (!LazyOpen(false)) | |
| 517 return false; | |
| 518 | |
| 519 const char* kSql = | |
| 520 "DELETE FROM Caches WHERE cache_id = ?"; | |
| 521 | |
| 522 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 523 statement.BindInt64(0, cache_id); | |
| 524 | |
| 525 return statement.Run(); | |
| 526 } | |
| 527 | |
| 528 bool AppCacheDatabase::FindEntriesForCache( | |
| 529 int64 cache_id, std::vector<EntryRecord>* records) { | |
| 530 DCHECK(records && records->empty()); | |
| 531 if (!LazyOpen(false)) | |
| 532 return false; | |
| 533 | |
| 534 const char* kSql = | |
| 535 "SELECT cache_id, url, flags, response_id, response_size FROM Entries" | |
| 536 " WHERE cache_id = ?"; | |
| 537 | |
| 538 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 539 statement.BindInt64(0, cache_id); | |
| 540 | |
| 541 while (statement.Step()) { | |
| 542 records->push_back(EntryRecord()); | |
| 543 ReadEntryRecord(statement, &records->back()); | |
| 544 DCHECK(records->back().cache_id == cache_id); | |
| 545 } | |
| 546 | |
| 547 return statement.Succeeded(); | |
| 548 } | |
| 549 | |
| 550 bool AppCacheDatabase::FindEntriesForUrl( | |
| 551 const GURL& url, std::vector<EntryRecord>* records) { | |
| 552 DCHECK(records && records->empty()); | |
| 553 if (!LazyOpen(false)) | |
| 554 return false; | |
| 555 | |
| 556 const char* kSql = | |
| 557 "SELECT cache_id, url, flags, response_id, response_size FROM Entries" | |
| 558 " WHERE url = ?"; | |
| 559 | |
| 560 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 561 statement.BindString(0, url.spec()); | |
| 562 | |
| 563 while (statement.Step()) { | |
| 564 records->push_back(EntryRecord()); | |
| 565 ReadEntryRecord(statement, &records->back()); | |
| 566 DCHECK(records->back().url == url); | |
| 567 } | |
| 568 | |
| 569 return statement.Succeeded(); | |
| 570 } | |
| 571 | |
| 572 bool AppCacheDatabase::FindEntry( | |
| 573 int64 cache_id, const GURL& url, EntryRecord* record) { | |
| 574 DCHECK(record); | |
| 575 if (!LazyOpen(false)) | |
| 576 return false; | |
| 577 | |
| 578 const char* kSql = | |
| 579 "SELECT cache_id, url, flags, response_id, response_size FROM Entries" | |
| 580 " WHERE cache_id = ? AND url = ?"; | |
| 581 | |
| 582 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 583 statement.BindInt64(0, cache_id); | |
| 584 statement.BindString(1, url.spec()); | |
| 585 | |
| 586 if (!statement.Step()) | |
| 587 return false; | |
| 588 | |
| 589 ReadEntryRecord(statement, record); | |
| 590 DCHECK(record->cache_id == cache_id); | |
| 591 DCHECK(record->url == url); | |
| 592 return true; | |
| 593 } | |
| 594 | |
| 595 bool AppCacheDatabase::InsertEntry(const EntryRecord* record) { | |
| 596 if (!LazyOpen(true)) | |
| 597 return false; | |
| 598 | |
| 599 const char* kSql = | |
| 600 "INSERT INTO Entries (cache_id, url, flags, response_id, response_size)" | |
| 601 " VALUES(?, ?, ?, ?, ?)"; | |
| 602 | |
| 603 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 604 statement.BindInt64(0, record->cache_id); | |
| 605 statement.BindString(1, record->url.spec()); | |
| 606 statement.BindInt(2, record->flags); | |
| 607 statement.BindInt64(3, record->response_id); | |
| 608 statement.BindInt64(4, record->response_size); | |
| 609 | |
| 610 return statement.Run(); | |
| 611 } | |
| 612 | |
| 613 bool AppCacheDatabase::InsertEntryRecords( | |
| 614 const std::vector<EntryRecord>& records) { | |
| 615 if (records.empty()) | |
| 616 return true; | |
| 617 sql::Transaction transaction(db_.get()); | |
| 618 if (!transaction.Begin()) | |
| 619 return false; | |
| 620 std::vector<EntryRecord>::const_iterator iter = records.begin(); | |
| 621 while (iter != records.end()) { | |
| 622 if (!InsertEntry(&(*iter))) | |
| 623 return false; | |
| 624 ++iter; | |
| 625 } | |
| 626 return transaction.Commit(); | |
| 627 } | |
| 628 | |
| 629 bool AppCacheDatabase::DeleteEntriesForCache(int64 cache_id) { | |
| 630 if (!LazyOpen(false)) | |
| 631 return false; | |
| 632 | |
| 633 const char* kSql = | |
| 634 "DELETE FROM Entries WHERE cache_id = ?"; | |
| 635 | |
| 636 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 637 statement.BindInt64(0, cache_id); | |
| 638 | |
| 639 return statement.Run(); | |
| 640 } | |
| 641 | |
| 642 bool AppCacheDatabase::AddEntryFlags( | |
| 643 const GURL& entry_url, int64 cache_id, int additional_flags) { | |
| 644 if (!LazyOpen(false)) | |
| 645 return false; | |
| 646 | |
| 647 const char* kSql = | |
| 648 "UPDATE Entries SET flags = flags | ? WHERE cache_id = ? AND url = ?"; | |
| 649 | |
| 650 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 651 statement.BindInt(0, additional_flags); | |
| 652 statement.BindInt64(1, cache_id); | |
| 653 statement.BindString(2, entry_url.spec()); | |
| 654 | |
| 655 return statement.Run() && db_->GetLastChangeCount(); | |
| 656 } | |
| 657 | |
| 658 bool AppCacheDatabase::FindNamespacesForOrigin( | |
| 659 const GURL& origin, | |
| 660 std::vector<NamespaceRecord>* intercepts, | |
| 661 std::vector<NamespaceRecord>* fallbacks) { | |
| 662 DCHECK(intercepts && intercepts->empty()); | |
| 663 DCHECK(fallbacks && fallbacks->empty()); | |
| 664 if (!LazyOpen(false)) | |
| 665 return false; | |
| 666 | |
| 667 const char* kSql = | |
| 668 "SELECT cache_id, origin, type, namespace_url, target_url, is_pattern" | |
| 669 " FROM Namespaces WHERE origin = ?"; | |
| 670 | |
| 671 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 672 statement.BindString(0, origin.spec()); | |
| 673 | |
| 674 ReadNamespaceRecords(&statement, intercepts, fallbacks); | |
| 675 | |
| 676 return statement.Succeeded(); | |
| 677 } | |
| 678 | |
| 679 bool AppCacheDatabase::FindNamespacesForCache( | |
| 680 int64 cache_id, | |
| 681 std::vector<NamespaceRecord>* intercepts, | |
| 682 std::vector<NamespaceRecord>* fallbacks) { | |
| 683 DCHECK(intercepts && intercepts->empty()); | |
| 684 DCHECK(fallbacks && fallbacks->empty()); | |
| 685 if (!LazyOpen(false)) | |
| 686 return false; | |
| 687 | |
| 688 const char* kSql = | |
| 689 "SELECT cache_id, origin, type, namespace_url, target_url, is_pattern" | |
| 690 " FROM Namespaces WHERE cache_id = ?"; | |
| 691 | |
| 692 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 693 statement.BindInt64(0, cache_id); | |
| 694 | |
| 695 ReadNamespaceRecords(&statement, intercepts, fallbacks); | |
| 696 | |
| 697 return statement.Succeeded(); | |
| 698 } | |
| 699 | |
| 700 bool AppCacheDatabase::InsertNamespace( | |
| 701 const NamespaceRecord* record) { | |
| 702 if (!LazyOpen(true)) | |
| 703 return false; | |
| 704 | |
| 705 const char* kSql = | |
| 706 "INSERT INTO Namespaces" | |
| 707 " (cache_id, origin, type, namespace_url, target_url, is_pattern)" | |
| 708 " VALUES (?, ?, ?, ?, ?, ?)"; | |
| 709 | |
| 710 // Note: quick and dirty storage for the 'executable' bit w/o changing | |
| 711 // schemas, we use the high bit of 'type' field. | |
| 712 int type_with_executable_bit = record->namespace_.type; | |
| 713 if (record->namespace_.is_executable) { | |
| 714 type_with_executable_bit |= 0x8000000; | |
| 715 DCHECK(CommandLine::ForCurrentProcess()->HasSwitch( | |
| 716 kEnableExecutableHandlers)); | |
| 717 } | |
| 718 | |
| 719 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 720 statement.BindInt64(0, record->cache_id); | |
| 721 statement.BindString(1, record->origin.spec()); | |
| 722 statement.BindInt(2, type_with_executable_bit); | |
| 723 statement.BindString(3, record->namespace_.namespace_url.spec()); | |
| 724 statement.BindString(4, record->namespace_.target_url.spec()); | |
| 725 statement.BindBool(5, record->namespace_.is_pattern); | |
| 726 return statement.Run(); | |
| 727 } | |
| 728 | |
| 729 bool AppCacheDatabase::InsertNamespaceRecords( | |
| 730 const std::vector<NamespaceRecord>& records) { | |
| 731 if (records.empty()) | |
| 732 return true; | |
| 733 sql::Transaction transaction(db_.get()); | |
| 734 if (!transaction.Begin()) | |
| 735 return false; | |
| 736 std::vector<NamespaceRecord>::const_iterator iter = records.begin(); | |
| 737 while (iter != records.end()) { | |
| 738 if (!InsertNamespace(&(*iter))) | |
| 739 return false; | |
| 740 ++iter; | |
| 741 } | |
| 742 return transaction.Commit(); | |
| 743 } | |
| 744 | |
| 745 bool AppCacheDatabase::DeleteNamespacesForCache(int64 cache_id) { | |
| 746 if (!LazyOpen(false)) | |
| 747 return false; | |
| 748 | |
| 749 const char* kSql = | |
| 750 "DELETE FROM Namespaces WHERE cache_id = ?"; | |
| 751 | |
| 752 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 753 statement.BindInt64(0, cache_id); | |
| 754 | |
| 755 return statement.Run(); | |
| 756 } | |
| 757 | |
| 758 bool AppCacheDatabase::FindOnlineWhiteListForCache( | |
| 759 int64 cache_id, std::vector<OnlineWhiteListRecord>* records) { | |
| 760 DCHECK(records && records->empty()); | |
| 761 if (!LazyOpen(false)) | |
| 762 return false; | |
| 763 | |
| 764 const char* kSql = | |
| 765 "SELECT cache_id, namespace_url, is_pattern FROM OnlineWhiteLists" | |
| 766 " WHERE cache_id = ?"; | |
| 767 | |
| 768 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 769 statement.BindInt64(0, cache_id); | |
| 770 | |
| 771 while (statement.Step()) { | |
| 772 records->push_back(OnlineWhiteListRecord()); | |
| 773 this->ReadOnlineWhiteListRecord(statement, &records->back()); | |
| 774 DCHECK(records->back().cache_id == cache_id); | |
| 775 } | |
| 776 return statement.Succeeded(); | |
| 777 } | |
| 778 | |
| 779 bool AppCacheDatabase::InsertOnlineWhiteList( | |
| 780 const OnlineWhiteListRecord* record) { | |
| 781 if (!LazyOpen(true)) | |
| 782 return false; | |
| 783 | |
| 784 const char* kSql = | |
| 785 "INSERT INTO OnlineWhiteLists (cache_id, namespace_url, is_pattern)" | |
| 786 " VALUES (?, ?, ?)"; | |
| 787 | |
| 788 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 789 statement.BindInt64(0, record->cache_id); | |
| 790 statement.BindString(1, record->namespace_url.spec()); | |
| 791 statement.BindBool(2, record->is_pattern); | |
| 792 | |
| 793 return statement.Run(); | |
| 794 } | |
| 795 | |
| 796 bool AppCacheDatabase::InsertOnlineWhiteListRecords( | |
| 797 const std::vector<OnlineWhiteListRecord>& records) { | |
| 798 if (records.empty()) | |
| 799 return true; | |
| 800 sql::Transaction transaction(db_.get()); | |
| 801 if (!transaction.Begin()) | |
| 802 return false; | |
| 803 std::vector<OnlineWhiteListRecord>::const_iterator iter = records.begin(); | |
| 804 while (iter != records.end()) { | |
| 805 if (!InsertOnlineWhiteList(&(*iter))) | |
| 806 return false; | |
| 807 ++iter; | |
| 808 } | |
| 809 return transaction.Commit(); | |
| 810 } | |
| 811 | |
| 812 bool AppCacheDatabase::DeleteOnlineWhiteListForCache(int64 cache_id) { | |
| 813 if (!LazyOpen(false)) | |
| 814 return false; | |
| 815 | |
| 816 const char* kSql = | |
| 817 "DELETE FROM OnlineWhiteLists WHERE cache_id = ?"; | |
| 818 | |
| 819 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 820 statement.BindInt64(0, cache_id); | |
| 821 | |
| 822 return statement.Run(); | |
| 823 } | |
| 824 | |
| 825 bool AppCacheDatabase::GetDeletableResponseIds( | |
| 826 std::vector<int64>* response_ids, int64 max_rowid, int limit) { | |
| 827 if (!LazyOpen(false)) | |
| 828 return false; | |
| 829 | |
| 830 const char* kSql = | |
| 831 "SELECT response_id FROM DeletableResponseIds " | |
| 832 " WHERE rowid <= ?" | |
| 833 " LIMIT ?"; | |
| 834 | |
| 835 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 836 statement.BindInt64(0, max_rowid); | |
| 837 statement.BindInt64(1, limit); | |
| 838 | |
| 839 while (statement.Step()) | |
| 840 response_ids->push_back(statement.ColumnInt64(0)); | |
| 841 return statement.Succeeded(); | |
| 842 } | |
| 843 | |
| 844 bool AppCacheDatabase::InsertDeletableResponseIds( | |
| 845 const std::vector<int64>& response_ids) { | |
| 846 const char* kSql = | |
| 847 "INSERT INTO DeletableResponseIds (response_id) VALUES (?)"; | |
| 848 return RunCachedStatementWithIds(SQL_FROM_HERE, kSql, response_ids); | |
| 849 } | |
| 850 | |
| 851 bool AppCacheDatabase::DeleteDeletableResponseIds( | |
| 852 const std::vector<int64>& response_ids) { | |
| 853 const char* kSql = | |
| 854 "DELETE FROM DeletableResponseIds WHERE response_id = ?"; | |
| 855 return RunCachedStatementWithIds(SQL_FROM_HERE, kSql, response_ids); | |
| 856 } | |
| 857 | |
| 858 bool AppCacheDatabase::RunCachedStatementWithIds( | |
| 859 const sql::StatementID& statement_id, const char* sql, | |
| 860 const std::vector<int64>& ids) { | |
| 861 DCHECK(sql); | |
| 862 if (!LazyOpen(true)) | |
| 863 return false; | |
| 864 | |
| 865 sql::Transaction transaction(db_.get()); | |
| 866 if (!transaction.Begin()) | |
| 867 return false; | |
| 868 | |
| 869 sql::Statement statement(db_->GetCachedStatement(statement_id, sql)); | |
| 870 | |
| 871 std::vector<int64>::const_iterator iter = ids.begin(); | |
| 872 while (iter != ids.end()) { | |
| 873 statement.BindInt64(0, *iter); | |
| 874 if (!statement.Run()) | |
| 875 return false; | |
| 876 statement.Reset(true); | |
| 877 ++iter; | |
| 878 } | |
| 879 | |
| 880 return transaction.Commit(); | |
| 881 } | |
| 882 | |
| 883 bool AppCacheDatabase::RunUniqueStatementWithInt64Result( | |
| 884 const char* sql, int64* result) { | |
| 885 DCHECK(sql); | |
| 886 sql::Statement statement(db_->GetUniqueStatement(sql)); | |
| 887 if (!statement.Step()) { | |
| 888 return false; | |
| 889 } | |
| 890 *result = statement.ColumnInt64(0); | |
| 891 return true; | |
| 892 } | |
| 893 | |
| 894 bool AppCacheDatabase::FindResponseIdsForCacheHelper( | |
| 895 int64 cache_id, std::vector<int64>* ids_vector, | |
| 896 std::set<int64>* ids_set) { | |
| 897 DCHECK(ids_vector || ids_set); | |
| 898 DCHECK(!(ids_vector && ids_set)); | |
| 899 if (!LazyOpen(false)) | |
| 900 return false; | |
| 901 | |
| 902 const char* kSql = | |
| 903 "SELECT response_id FROM Entries WHERE cache_id = ?"; | |
| 904 | |
| 905 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 906 | |
| 907 statement.BindInt64(0, cache_id); | |
| 908 while (statement.Step()) { | |
| 909 int64 id = statement.ColumnInt64(0); | |
| 910 if (ids_set) | |
| 911 ids_set->insert(id); | |
| 912 else | |
| 913 ids_vector->push_back(id); | |
| 914 } | |
| 915 | |
| 916 return statement.Succeeded(); | |
| 917 } | |
| 918 | |
| 919 void AppCacheDatabase::ReadGroupRecord( | |
| 920 const sql::Statement& statement, GroupRecord* record) { | |
| 921 record->group_id = statement.ColumnInt64(0); | |
| 922 record->origin = GURL(statement.ColumnString(1)); | |
| 923 record->manifest_url = GURL(statement.ColumnString(2)); | |
| 924 record->creation_time = | |
| 925 base::Time::FromInternalValue(statement.ColumnInt64(3)); | |
| 926 record->last_access_time = | |
| 927 base::Time::FromInternalValue(statement.ColumnInt64(4)); | |
| 928 } | |
| 929 | |
| 930 void AppCacheDatabase::ReadCacheRecord( | |
| 931 const sql::Statement& statement, CacheRecord* record) { | |
| 932 record->cache_id = statement.ColumnInt64(0); | |
| 933 record->group_id = statement.ColumnInt64(1); | |
| 934 record->online_wildcard = statement.ColumnBool(2); | |
| 935 record->update_time = | |
| 936 base::Time::FromInternalValue(statement.ColumnInt64(3)); | |
| 937 record->cache_size = statement.ColumnInt64(4); | |
| 938 } | |
| 939 | |
| 940 void AppCacheDatabase::ReadEntryRecord( | |
| 941 const sql::Statement& statement, EntryRecord* record) { | |
| 942 record->cache_id = statement.ColumnInt64(0); | |
| 943 record->url = GURL(statement.ColumnString(1)); | |
| 944 record->flags = statement.ColumnInt(2); | |
| 945 record->response_id = statement.ColumnInt64(3); | |
| 946 record->response_size = statement.ColumnInt64(4); | |
| 947 } | |
| 948 | |
| 949 void AppCacheDatabase::ReadNamespaceRecords( | |
| 950 sql::Statement* statement, | |
| 951 NamespaceRecordVector* intercepts, | |
| 952 NamespaceRecordVector* fallbacks) { | |
| 953 while (statement->Step()) { | |
| 954 AppCacheNamespaceType type = static_cast<AppCacheNamespaceType>( | |
| 955 statement->ColumnInt(2)); | |
| 956 NamespaceRecordVector* records = | |
| 957 (type == APPCACHE_FALLBACK_NAMESPACE) ? fallbacks : intercepts; | |
| 958 records->push_back(NamespaceRecord()); | |
| 959 ReadNamespaceRecord(statement, &records->back()); | |
| 960 } | |
| 961 } | |
| 962 | |
| 963 void AppCacheDatabase::ReadNamespaceRecord( | |
| 964 const sql::Statement* statement, NamespaceRecord* record) { | |
| 965 record->cache_id = statement->ColumnInt64(0); | |
| 966 record->origin = GURL(statement->ColumnString(1)); | |
| 967 int type_with_executable_bit = statement->ColumnInt(2); | |
| 968 record->namespace_.namespace_url = GURL(statement->ColumnString(3)); | |
| 969 record->namespace_.target_url = GURL(statement->ColumnString(4)); | |
| 970 record->namespace_.is_pattern = statement->ColumnBool(5); | |
| 971 | |
| 972 // Note: quick and dirty storage for the 'executable' bit w/o changing | |
| 973 // schemas, we use the high bit of 'type' field. | |
| 974 record->namespace_.type = static_cast<AppCacheNamespaceType> | |
| 975 (type_with_executable_bit & 0x7ffffff); | |
| 976 record->namespace_.is_executable = | |
| 977 (type_with_executable_bit & 0x80000000) != 0; | |
| 978 DCHECK(!record->namespace_.is_executable || | |
| 979 CommandLine::ForCurrentProcess()->HasSwitch(kEnableExecutableHandlers)); | |
| 980 } | |
| 981 | |
| 982 void AppCacheDatabase::ReadOnlineWhiteListRecord( | |
| 983 const sql::Statement& statement, OnlineWhiteListRecord* record) { | |
| 984 record->cache_id = statement.ColumnInt64(0); | |
| 985 record->namespace_url = GURL(statement.ColumnString(1)); | |
| 986 record->is_pattern = statement.ColumnBool(2); | |
| 987 } | |
| 988 | |
| 989 bool AppCacheDatabase::LazyOpen(bool create_if_needed) { | |
| 990 if (db_) | |
| 991 return true; | |
| 992 | |
| 993 // If we tried and failed once, don't try again in the same session | |
| 994 // to avoid creating an incoherent mess on disk. | |
| 995 if (is_disabled_) | |
| 996 return false; | |
| 997 | |
| 998 // Avoid creating a database at all if we can. | |
| 999 bool use_in_memory_db = db_file_path_.empty(); | |
| 1000 if (!create_if_needed && | |
| 1001 (use_in_memory_db || !base::PathExists(db_file_path_))) { | |
| 1002 return false; | |
| 1003 } | |
| 1004 | |
| 1005 db_.reset(new sql::Connection); | |
| 1006 meta_table_.reset(new sql::MetaTable); | |
| 1007 | |
| 1008 db_->set_histogram_tag("AppCache"); | |
| 1009 | |
| 1010 bool opened = false; | |
| 1011 if (use_in_memory_db) { | |
| 1012 opened = db_->OpenInMemory(); | |
| 1013 } else if (!base::CreateDirectory(db_file_path_.DirName())) { | |
| 1014 LOG(ERROR) << "Failed to create appcache directory."; | |
| 1015 } else { | |
| 1016 opened = db_->Open(db_file_path_); | |
| 1017 if (opened) | |
| 1018 db_->Preload(); | |
| 1019 } | |
| 1020 | |
| 1021 if (!opened || !db_->QuickIntegrityCheck() || !EnsureDatabaseVersion()) { | |
| 1022 LOG(ERROR) << "Failed to open the appcache database."; | |
| 1023 AppCacheHistograms::CountInitResult( | |
| 1024 AppCacheHistograms::SQL_DATABASE_ERROR); | |
| 1025 | |
| 1026 // We're unable to open the database. This is a fatal error | |
| 1027 // which we can't recover from. We try to handle it by deleting | |
| 1028 // the existing appcache data and starting with a clean slate in | |
| 1029 // this browser session. | |
| 1030 if (!use_in_memory_db && DeleteExistingAndCreateNewDatabase()) | |
| 1031 return true; | |
| 1032 | |
| 1033 Disable(); | |
| 1034 return false; | |
| 1035 } | |
| 1036 | |
| 1037 AppCacheHistograms::CountInitResult(AppCacheHistograms::INIT_OK); | |
| 1038 was_corruption_detected_ = false; | |
| 1039 db_->set_error_callback( | |
| 1040 base::Bind(&AppCacheDatabase::OnDatabaseError, base::Unretained(this))); | |
| 1041 return true; | |
| 1042 } | |
| 1043 | |
| 1044 bool AppCacheDatabase::EnsureDatabaseVersion() { | |
| 1045 if (!sql::MetaTable::DoesTableExist(db_.get())) | |
| 1046 return CreateSchema(); | |
| 1047 | |
| 1048 if (!meta_table_->Init(db_.get(), kCurrentVersion, kCompatibleVersion)) | |
| 1049 return false; | |
| 1050 | |
| 1051 if (meta_table_->GetCompatibleVersionNumber() > kCurrentVersion) { | |
| 1052 LOG(WARNING) << "AppCache database is too new."; | |
| 1053 return false; | |
| 1054 } | |
| 1055 | |
| 1056 std::string stored_flags; | |
| 1057 meta_table_->GetValue(kExperimentFlagsKey, &stored_flags); | |
| 1058 if (stored_flags != GetActiveExperimentFlags()) | |
| 1059 return false; | |
| 1060 | |
| 1061 if (meta_table_->GetVersionNumber() < kCurrentVersion) | |
| 1062 return UpgradeSchema(); | |
| 1063 | |
| 1064 #ifndef NDEBUG | |
| 1065 DCHECK(sql::MetaTable::DoesTableExist(db_.get())); | |
| 1066 for (int i = 0; i < kTableCount; ++i) { | |
| 1067 DCHECK(db_->DoesTableExist(kTables[i].table_name)); | |
| 1068 } | |
| 1069 for (int i = 0; i < kIndexCount; ++i) { | |
| 1070 DCHECK(db_->DoesIndexExist(kIndexes[i].index_name)); | |
| 1071 } | |
| 1072 #endif | |
| 1073 | |
| 1074 return true; | |
| 1075 } | |
| 1076 | |
| 1077 bool AppCacheDatabase::CreateSchema() { | |
| 1078 sql::Transaction transaction(db_.get()); | |
| 1079 if (!transaction.Begin()) | |
| 1080 return false; | |
| 1081 | |
| 1082 if (!meta_table_->Init(db_.get(), kCurrentVersion, kCompatibleVersion)) | |
| 1083 return false; | |
| 1084 | |
| 1085 if (!meta_table_->SetValue(kExperimentFlagsKey, | |
| 1086 GetActiveExperimentFlags())) { | |
| 1087 return false; | |
| 1088 } | |
| 1089 | |
| 1090 for (int i = 0; i < kTableCount; ++i) { | |
| 1091 if (!CreateTable(db_.get(), kTables[i])) | |
| 1092 return false; | |
| 1093 } | |
| 1094 | |
| 1095 for (int i = 0; i < kIndexCount; ++i) { | |
| 1096 if (!CreateIndex(db_.get(), kIndexes[i])) | |
| 1097 return false; | |
| 1098 } | |
| 1099 | |
| 1100 return transaction.Commit(); | |
| 1101 } | |
| 1102 | |
| 1103 bool AppCacheDatabase::UpgradeSchema() { | |
| 1104 #if defined(APPCACHE_USE_SIMPLE_CACHE) | |
| 1105 return DeleteExistingAndCreateNewDatabase(); | |
| 1106 #else | |
| 1107 if (meta_table_->GetVersionNumber() == 3) { | |
| 1108 // version 3 was pre 12/17/2011 | |
| 1109 DCHECK_EQ(strcmp(kNamespacesTable, kTables[3].table_name), 0); | |
| 1110 DCHECK_EQ(strcmp(kNamespacesTable, kIndexes[6].table_name), 0); | |
| 1111 DCHECK_EQ(strcmp(kNamespacesTable, kIndexes[7].table_name), 0); | |
| 1112 DCHECK_EQ(strcmp(kNamespacesTable, kIndexes[8].table_name), 0); | |
| 1113 | |
| 1114 const TableInfo kNamespaceTable_v4 = { | |
| 1115 kNamespacesTable, | |
| 1116 "(cache_id INTEGER," | |
| 1117 " origin TEXT," // intentionally not normalized | |
| 1118 " type INTEGER," | |
| 1119 " namespace_url TEXT," | |
| 1120 " target_url TEXT)" | |
| 1121 }; | |
| 1122 | |
| 1123 // Migrate from the old FallbackNameSpaces to the newer Namespaces table, | |
| 1124 // but without the is_pattern column added in v5. | |
| 1125 sql::Transaction transaction(db_.get()); | |
| 1126 if (!transaction.Begin() || | |
| 1127 !CreateTable(db_.get(), kNamespaceTable_v4)) { | |
| 1128 return false; | |
| 1129 } | |
| 1130 | |
| 1131 // Move data from the old table to the new table, setting the | |
| 1132 // 'type' for all current records to the value for | |
| 1133 // APPCACHE_FALLBACK_NAMESPACE. | |
| 1134 DCHECK_EQ(0, static_cast<int>(APPCACHE_FALLBACK_NAMESPACE)); | |
| 1135 if (!db_->Execute( | |
| 1136 "INSERT INTO Namespaces" | |
| 1137 " SELECT cache_id, origin, 0, namespace_url, fallback_entry_url" | |
| 1138 " FROM FallbackNameSpaces")) { | |
| 1139 return false; | |
| 1140 } | |
| 1141 | |
| 1142 // Drop the old table, indexes on that table are also removed by this. | |
| 1143 if (!db_->Execute("DROP TABLE FallbackNameSpaces")) | |
| 1144 return false; | |
| 1145 | |
| 1146 // Create new indexes. | |
| 1147 if (!CreateIndex(db_.get(), kIndexes[6]) || | |
| 1148 !CreateIndex(db_.get(), kIndexes[7]) || | |
| 1149 !CreateIndex(db_.get(), kIndexes[8])) { | |
| 1150 return false; | |
| 1151 } | |
| 1152 | |
| 1153 meta_table_->SetVersionNumber(4); | |
| 1154 meta_table_->SetCompatibleVersionNumber(4); | |
| 1155 if (!transaction.Commit()) | |
| 1156 return false; | |
| 1157 } | |
| 1158 | |
| 1159 if (meta_table_->GetVersionNumber() == 4) { | |
| 1160 // version 4 pre 3/30/2013 | |
| 1161 // Add the is_pattern column to the Namespaces and OnlineWhitelists tables. | |
| 1162 DCHECK_EQ(strcmp(kNamespacesTable, "Namespaces"), 0); | |
| 1163 sql::Transaction transaction(db_.get()); | |
| 1164 if (!transaction.Begin()) | |
| 1165 return false; | |
| 1166 if (!db_->Execute( | |
| 1167 "ALTER TABLE Namespaces ADD COLUMN" | |
| 1168 " is_pattern INTEGER CHECK(is_pattern IN (0, 1))")) { | |
| 1169 return false; | |
| 1170 } | |
| 1171 if (!db_->Execute( | |
| 1172 "ALTER TABLE OnlineWhitelists ADD COLUMN" | |
| 1173 " is_pattern INTEGER CHECK(is_pattern IN (0, 1))")) { | |
| 1174 return false; | |
| 1175 } | |
| 1176 meta_table_->SetVersionNumber(5); | |
| 1177 meta_table_->SetCompatibleVersionNumber(5); | |
| 1178 return transaction.Commit(); | |
| 1179 } | |
| 1180 | |
| 1181 // If there is no upgrade path for the version on disk to the current | |
| 1182 // version, nuke everything and start over. | |
| 1183 return DeleteExistingAndCreateNewDatabase(); | |
| 1184 #endif | |
| 1185 } | |
| 1186 | |
| 1187 void AppCacheDatabase::ResetConnectionAndTables() { | |
| 1188 meta_table_.reset(); | |
| 1189 db_.reset(); | |
| 1190 } | |
| 1191 | |
| 1192 bool AppCacheDatabase::DeleteExistingAndCreateNewDatabase() { | |
| 1193 DCHECK(!db_file_path_.empty()); | |
| 1194 DCHECK(base::PathExists(db_file_path_)); | |
| 1195 VLOG(1) << "Deleting existing appcache data and starting over."; | |
| 1196 | |
| 1197 ResetConnectionAndTables(); | |
| 1198 | |
| 1199 // This also deletes the disk cache data. | |
| 1200 base::FilePath directory = db_file_path_.DirName(); | |
| 1201 if (!base::DeleteFile(directory, true)) | |
| 1202 return false; | |
| 1203 | |
| 1204 // Make sure the steps above actually deleted things. | |
| 1205 if (base::PathExists(directory)) | |
| 1206 return false; | |
| 1207 | |
| 1208 if (!base::CreateDirectory(directory)) | |
| 1209 return false; | |
| 1210 | |
| 1211 // So we can't go recursive. | |
| 1212 if (is_recreating_) | |
| 1213 return false; | |
| 1214 | |
| 1215 base::AutoReset<bool> auto_reset(&is_recreating_, true); | |
| 1216 return LazyOpen(true); | |
| 1217 } | |
| 1218 | |
| 1219 void AppCacheDatabase::OnDatabaseError(int err, sql::Statement* stmt) { | |
| 1220 was_corruption_detected_ |= sql::IsErrorCatastrophic(err); | |
| 1221 if (!db_->ShouldIgnoreSqliteError(err)) | |
| 1222 DLOG(ERROR) << db_->GetErrorMessage(); | |
| 1223 // TODO: Maybe use non-catostrophic errors to trigger a full integrity check? | |
| 1224 } | |
| 1225 | |
| 1226 } // namespace appcache | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 344493002:
Move all remaining appcache-related code to content namespace (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src