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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 "webkit/browser/quota/quota_database.h" | |
| 6 | |
| 7 #include <string> | |
| 8 #include <vector> | |
| 9 | |
| 10 #include "base/auto_reset.h" | |
| 11 #include "base/bind.h" | |
| 12 #include "base/file_util.h" | |
| 13 #include "base/time/time.h" | |
| 14 #include "sql/connection.h" | |
| 15 #include "sql/meta_table.h" | |
| 16 #include "sql/statement.h" | |
| 17 #include "sql/transaction.h" | |
| 18 #include "url/gurl.h" | |
| 19 #include "webkit/browser/quota/special_storage_policy.h" | |
| 20 | |
| 21 namespace quota { | |
| 22 namespace { | |
| 23 | |
| 24 // Definitions for database schema. | |
| 25 | |
| 26 const int kCurrentVersion = 4; | |
| 27 const int kCompatibleVersion = 2; | |
| 28 | |
| 29 const char kHostQuotaTable[] = "HostQuotaTable"; | |
| 30 const char kOriginInfoTable[] = "OriginInfoTable"; | |
| 31 const char kIsOriginTableBootstrapped[] = "IsOriginTableBootstrapped"; | |
| 32 | |
| 33 bool VerifyValidQuotaConfig(const char* key) { | |
| 34 return (key != NULL && | |
| 35 (!strcmp(key, QuotaDatabase::kDesiredAvailableSpaceKey) || | |
| 36 !strcmp(key, QuotaDatabase::kTemporaryQuotaOverrideKey))); | |
| 37 } | |
| 38 | |
| 39 const int kCommitIntervalMs = 30000; | |
| 40 | |
| 41 } // anonymous namespace | |
| 42 | |
| 43 // static | |
| 44 const char QuotaDatabase::kDesiredAvailableSpaceKey[] = "DesiredAvailableSpace"; | |
| 45 const char QuotaDatabase::kTemporaryQuotaOverrideKey[] = | |
| 46 "TemporaryQuotaOverride"; | |
| 47 | |
| 48 const QuotaDatabase::TableSchema QuotaDatabase::kTables[] = { | |
| 49 { kHostQuotaTable, | |
| 50 "(host TEXT NOT NULL," | |
| 51 " type INTEGER NOT NULL," | |
| 52 " quota INTEGER DEFAULT 0," | |
| 53 " UNIQUE(host, type))" }, | |
| 54 { kOriginInfoTable, | |
| 55 "(origin TEXT NOT NULL," | |
| 56 " type INTEGER NOT NULL," | |
| 57 " used_count INTEGER DEFAULT 0," | |
| 58 " last_access_time INTEGER DEFAULT 0," | |
| 59 " last_modified_time INTEGER DEFAULT 0," | |
| 60 " UNIQUE(origin, type))" }, | |
| 61 }; | |
| 62 | |
| 63 // static | |
| 64 const QuotaDatabase::IndexSchema QuotaDatabase::kIndexes[] = { | |
| 65 { "HostIndex", | |
| 66 kHostQuotaTable, | |
| 67 "(host)", | |
| 68 false }, | |
| 69 { "OriginInfoIndex", | |
| 70 kOriginInfoTable, | |
| 71 "(origin)", | |
| 72 false }, | |
| 73 { "OriginLastAccessTimeIndex", | |
| 74 kOriginInfoTable, | |
| 75 "(last_access_time)", | |
| 76 false }, | |
| 77 { "OriginLastModifiedTimeIndex", | |
| 78 kOriginInfoTable, | |
| 79 "(last_modified_time)", | |
| 80 false }, | |
| 81 }; | |
| 82 | |
| 83 struct QuotaDatabase::QuotaTableImporter { | |
| 84 bool Append(const QuotaTableEntry& entry) { | |
| 85 entries.push_back(entry); | |
| 86 return true; | |
| 87 } | |
| 88 std::vector<QuotaTableEntry> entries; | |
| 89 }; | |
| 90 | |
| 91 // Clang requires explicit out-of-line constructors for them. | |
| 92 QuotaDatabase::QuotaTableEntry::QuotaTableEntry() | |
| 93 : type(kStorageTypeUnknown), | |
| 94 quota(0) { | |
| 95 } | |
| 96 | |
| 97 QuotaDatabase::QuotaTableEntry::QuotaTableEntry( | |
| 98 const std::string& host, | |
| 99 StorageType type, | |
| 100 int64 quota) | |
| 101 : host(host), | |
| 102 type(type), | |
| 103 quota(quota) { | |
| 104 } | |
| 105 | |
| 106 QuotaDatabase::OriginInfoTableEntry::OriginInfoTableEntry() | |
| 107 : type(kStorageTypeUnknown), | |
| 108 used_count(0) { | |
| 109 } | |
| 110 | |
| 111 QuotaDatabase::OriginInfoTableEntry::OriginInfoTableEntry( | |
| 112 const GURL& origin, | |
| 113 StorageType type, | |
| 114 int used_count, | |
| 115 const base::Time& last_access_time, | |
| 116 const base::Time& last_modified_time) | |
| 117 : origin(origin), | |
| 118 type(type), | |
| 119 used_count(used_count), | |
| 120 last_access_time(last_access_time), | |
| 121 last_modified_time(last_modified_time) { | |
| 122 } | |
| 123 | |
| 124 // QuotaDatabase ------------------------------------------------------------ | |
| 125 QuotaDatabase::QuotaDatabase(const base::FilePath& path) | |
| 126 : db_file_path_(path), | |
| 127 is_recreating_(false), | |
| 128 is_disabled_(false) { | |
| 129 } | |
| 130 | |
| 131 QuotaDatabase::~QuotaDatabase() { | |
| 132 if (db_) { | |
| 133 db_->CommitTransaction(); | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 void QuotaDatabase::CloseConnection() { | |
| 138 meta_table_.reset(); | |
| 139 db_.reset(); | |
| 140 } | |
| 141 | |
| 142 bool QuotaDatabase::GetHostQuota( | |
| 143 const std::string& host, StorageType type, int64* quota) { | |
| 144 DCHECK(quota); | |
| 145 if (!LazyOpen(false)) | |
| 146 return false; | |
| 147 | |
| 148 const char* kSql = | |
| 149 "SELECT quota" | |
| 150 " FROM HostQuotaTable" | |
| 151 " WHERE host = ? AND type = ?"; | |
| 152 | |
| 153 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 154 statement.BindString(0, host); | |
| 155 statement.BindInt(1, static_cast<int>(type)); | |
| 156 | |
| 157 if (!statement.Step()) | |
| 158 return false; | |
| 159 | |
| 160 *quota = statement.ColumnInt64(0); | |
| 161 return true; | |
| 162 } | |
| 163 | |
| 164 bool QuotaDatabase::SetHostQuota( | |
| 165 const std::string& host, StorageType type, int64 quota) { | |
| 166 DCHECK_GE(quota, 0); | |
| 167 if (!LazyOpen(true)) | |
| 168 return false; | |
| 169 | |
| 170 const char* kSql = | |
| 171 "INSERT OR REPLACE INTO HostQuotaTable" | |
| 172 " (quota, host, type)" | |
| 173 " VALUES (?, ?, ?)"; | |
| 174 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 175 statement.BindInt64(0, quota); | |
| 176 statement.BindString(1, host); | |
| 177 statement.BindInt(2, static_cast<int>(type)); | |
| 178 | |
| 179 if (!statement.Run()) | |
| 180 return false; | |
| 181 | |
| 182 ScheduleCommit(); | |
| 183 return true; | |
| 184 } | |
| 185 | |
| 186 bool QuotaDatabase::SetOriginLastAccessTime( | |
| 187 const GURL& origin, StorageType type, base::Time last_access_time) { | |
| 188 if (!LazyOpen(true)) | |
| 189 return false; | |
| 190 | |
| 191 sql::Statement statement; | |
| 192 | |
| 193 int used_count = 1; | |
| 194 if (FindOriginUsedCount(origin, type, &used_count)) { | |
| 195 ++used_count; | |
| 196 const char* kSql = | |
| 197 "UPDATE OriginInfoTable" | |
| 198 " SET used_count = ?, last_access_time = ?" | |
| 199 " WHERE origin = ? AND type = ?"; | |
| 200 statement.Assign(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 201 } else { | |
| 202 const char* kSql = | |
| 203 "INSERT INTO OriginInfoTable" | |
| 204 " (used_count, last_access_time, origin, type)" | |
| 205 " VALUES (?, ?, ?, ?)"; | |
| 206 statement.Assign(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 207 } | |
| 208 statement.BindInt(0, used_count); | |
| 209 statement.BindInt64(1, last_access_time.ToInternalValue()); | |
| 210 statement.BindString(2, origin.spec()); | |
| 211 statement.BindInt(3, static_cast<int>(type)); | |
| 212 | |
| 213 if (!statement.Run()) | |
| 214 return false; | |
| 215 | |
| 216 ScheduleCommit(); | |
| 217 return true; | |
| 218 } | |
| 219 | |
| 220 bool QuotaDatabase::SetOriginLastModifiedTime( | |
| 221 const GURL& origin, StorageType type, base::Time last_modified_time) { | |
| 222 if (!LazyOpen(true)) | |
| 223 return false; | |
| 224 | |
| 225 sql::Statement statement; | |
| 226 | |
| 227 int dummy; | |
| 228 if (FindOriginUsedCount(origin, type, &dummy)) { | |
| 229 const char* kSql = | |
| 230 "UPDATE OriginInfoTable" | |
| 231 " SET last_modified_time = ?" | |
| 232 " WHERE origin = ? AND type = ?"; | |
| 233 statement.Assign(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 234 } else { | |
| 235 const char* kSql = | |
| 236 "INSERT INTO OriginInfoTable" | |
| 237 " (last_modified_time, origin, type) VALUES (?, ?, ?)"; | |
| 238 statement.Assign(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 239 } | |
| 240 statement.BindInt64(0, last_modified_time.ToInternalValue()); | |
| 241 statement.BindString(1, origin.spec()); | |
| 242 statement.BindInt(2, static_cast<int>(type)); | |
| 243 | |
| 244 if (!statement.Run()) | |
| 245 return false; | |
| 246 | |
| 247 ScheduleCommit(); | |
| 248 return true; | |
| 249 } | |
| 250 | |
| 251 bool QuotaDatabase::RegisterInitialOriginInfo( | |
| 252 const std::set<GURL>& origins, StorageType type) { | |
| 253 if (!LazyOpen(true)) | |
| 254 return false; | |
| 255 | |
| 256 typedef std::set<GURL>::const_iterator itr_type; | |
| 257 for (itr_type itr = origins.begin(), end = origins.end(); | |
| 258 itr != end; ++itr) { | |
| 259 const char* kSql = | |
| 260 "INSERT OR IGNORE INTO OriginInfoTable" | |
| 261 " (origin, type) VALUES (?, ?)"; | |
| 262 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 263 statement.BindString(0, itr->spec()); | |
| 264 statement.BindInt(1, static_cast<int>(type)); | |
| 265 | |
| 266 if (!statement.Run()) | |
| 267 return false; | |
| 268 } | |
| 269 | |
| 270 ScheduleCommit(); | |
| 271 return true; | |
| 272 } | |
| 273 | |
| 274 bool QuotaDatabase::DeleteHostQuota( | |
| 275 const std::string& host, StorageType type) { | |
| 276 if (!LazyOpen(false)) | |
| 277 return false; | |
| 278 | |
| 279 const char* kSql = | |
| 280 "DELETE FROM HostQuotaTable" | |
| 281 " WHERE host = ? AND type = ?"; | |
| 282 | |
| 283 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 284 statement.BindString(0, host); | |
| 285 statement.BindInt(1, static_cast<int>(type)); | |
| 286 | |
| 287 if (!statement.Run()) | |
| 288 return false; | |
| 289 | |
| 290 ScheduleCommit(); | |
| 291 return true; | |
| 292 } | |
| 293 | |
| 294 bool QuotaDatabase::DeleteOriginInfo( | |
| 295 const GURL& origin, StorageType type) { | |
| 296 if (!LazyOpen(false)) | |
| 297 return false; | |
| 298 | |
| 299 const char* kSql = | |
| 300 "DELETE FROM OriginInfoTable" | |
| 301 " WHERE origin = ? AND type = ?"; | |
| 302 | |
| 303 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 304 statement.BindString(0, origin.spec()); | |
| 305 statement.BindInt(1, static_cast<int>(type)); | |
| 306 | |
| 307 if (!statement.Run()) | |
| 308 return false; | |
| 309 | |
| 310 ScheduleCommit(); | |
| 311 return true; | |
| 312 } | |
| 313 | |
| 314 bool QuotaDatabase::GetQuotaConfigValue(const char* key, int64* value) { | |
| 315 if (!LazyOpen(false)) | |
| 316 return false; | |
| 317 DCHECK(VerifyValidQuotaConfig(key)); | |
| 318 return meta_table_->GetValue(key, value); | |
| 319 } | |
| 320 | |
| 321 bool QuotaDatabase::SetQuotaConfigValue(const char* key, int64 value) { | |
| 322 if (!LazyOpen(true)) | |
| 323 return false; | |
| 324 DCHECK(VerifyValidQuotaConfig(key)); | |
| 325 return meta_table_->SetValue(key, value); | |
| 326 } | |
| 327 | |
| 328 bool QuotaDatabase::GetLRUOrigin( | |
| 329 StorageType type, | |
| 330 const std::set<GURL>& exceptions, | |
| 331 SpecialStoragePolicy* special_storage_policy, | |
| 332 GURL* origin) { | |
| 333 DCHECK(origin); | |
| 334 if (!LazyOpen(false)) | |
| 335 return false; | |
| 336 | |
| 337 const char* kSql = "SELECT origin FROM OriginInfoTable" | |
| 338 " WHERE type = ?" | |
| 339 " ORDER BY last_access_time ASC"; | |
| 340 | |
| 341 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 342 statement.BindInt(0, static_cast<int>(type)); | |
| 343 | |
| 344 while (statement.Step()) { | |
| 345 GURL url(statement.ColumnString(0)); | |
| 346 if (exceptions.find(url) != exceptions.end()) | |
| 347 continue; | |
| 348 if (special_storage_policy && | |
| 349 special_storage_policy->IsStorageUnlimited(url)) | |
| 350 continue; | |
| 351 *origin = url; | |
| 352 return true; | |
| 353 } | |
| 354 | |
| 355 *origin = GURL(); | |
| 356 return statement.Succeeded(); | |
| 357 } | |
| 358 | |
| 359 bool QuotaDatabase::GetOriginsModifiedSince( | |
| 360 StorageType type, std::set<GURL>* origins, base::Time modified_since) { | |
| 361 DCHECK(origins); | |
| 362 if (!LazyOpen(false)) | |
| 363 return false; | |
| 364 | |
| 365 const char* kSql = "SELECT origin FROM OriginInfoTable" | |
| 366 " WHERE type = ? AND last_modified_time >= ?"; | |
| 367 | |
| 368 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 369 statement.BindInt(0, static_cast<int>(type)); | |
| 370 statement.BindInt64(1, modified_since.ToInternalValue()); | |
| 371 | |
| 372 origins->clear(); | |
| 373 while (statement.Step()) | |
| 374 origins->insert(GURL(statement.ColumnString(0))); | |
| 375 | |
| 376 return statement.Succeeded(); | |
| 377 } | |
| 378 | |
| 379 bool QuotaDatabase::IsOriginDatabaseBootstrapped() { | |
| 380 if (!LazyOpen(true)) | |
| 381 return false; | |
| 382 | |
| 383 int flag = 0; | |
| 384 return meta_table_->GetValue(kIsOriginTableBootstrapped, &flag) && flag; | |
| 385 } | |
| 386 | |
| 387 bool QuotaDatabase::SetOriginDatabaseBootstrapped(bool bootstrap_flag) { | |
| 388 if (!LazyOpen(true)) | |
| 389 return false; | |
| 390 | |
| 391 return meta_table_->SetValue(kIsOriginTableBootstrapped, bootstrap_flag); | |
| 392 } | |
| 393 | |
| 394 void QuotaDatabase::Commit() { | |
| 395 if (!db_) | |
| 396 return; | |
| 397 | |
| 398 if (timer_.IsRunning()) | |
| 399 timer_.Stop(); | |
| 400 | |
| 401 db_->CommitTransaction(); | |
| 402 db_->BeginTransaction(); | |
| 403 } | |
| 404 | |
| 405 void QuotaDatabase::ScheduleCommit() { | |
| 406 if (timer_.IsRunning()) | |
| 407 return; | |
| 408 timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(kCommitIntervalMs), | |
| 409 this, &QuotaDatabase::Commit); | |
| 410 } | |
| 411 | |
| 412 bool QuotaDatabase::FindOriginUsedCount( | |
| 413 const GURL& origin, StorageType type, int* used_count) { | |
| 414 DCHECK(used_count); | |
| 415 if (!LazyOpen(false)) | |
| 416 return false; | |
| 417 | |
| 418 const char* kSql = | |
| 419 "SELECT used_count FROM OriginInfoTable" | |
| 420 " WHERE origin = ? AND type = ?"; | |
| 421 | |
| 422 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 423 statement.BindString(0, origin.spec()); | |
| 424 statement.BindInt(1, static_cast<int>(type)); | |
| 425 | |
| 426 if (!statement.Step()) | |
| 427 return false; | |
| 428 | |
| 429 *used_count = statement.ColumnInt(0); | |
| 430 return true; | |
| 431 } | |
| 432 | |
| 433 bool QuotaDatabase::LazyOpen(bool create_if_needed) { | |
| 434 if (db_) | |
| 435 return true; | |
| 436 | |
| 437 // If we tried and failed once, don't try again in the same session | |
| 438 // to avoid creating an incoherent mess on disk. | |
| 439 if (is_disabled_) | |
| 440 return false; | |
| 441 | |
| 442 bool in_memory_only = db_file_path_.empty(); | |
| 443 if (!create_if_needed && | |
| 444 (in_memory_only || !base::PathExists(db_file_path_))) { | |
| 445 return false; | |
| 446 } | |
| 447 | |
| 448 db_.reset(new sql::Connection); | |
| 449 meta_table_.reset(new sql::MetaTable); | |
| 450 | |
| 451 db_->set_histogram_tag("Quota"); | |
| 452 | |
| 453 bool opened = false; | |
| 454 if (in_memory_only) { | |
| 455 opened = db_->OpenInMemory(); | |
| 456 } else if (!base::CreateDirectory(db_file_path_.DirName())) { | |
| 457 LOG(ERROR) << "Failed to create quota database directory."; | |
| 458 } else { | |
| 459 opened = db_->Open(db_file_path_); | |
| 460 if (opened) | |
| 461 db_->Preload(); | |
| 462 } | |
| 463 | |
| 464 if (!opened || !EnsureDatabaseVersion()) { | |
| 465 LOG(ERROR) << "Failed to open the quota database."; | |
| 466 is_disabled_ = true; | |
| 467 db_.reset(); | |
| 468 meta_table_.reset(); | |
| 469 return false; | |
| 470 } | |
| 471 | |
| 472 // Start a long-running transaction. | |
| 473 db_->BeginTransaction(); | |
| 474 | |
| 475 return true; | |
| 476 } | |
| 477 | |
| 478 bool QuotaDatabase::EnsureDatabaseVersion() { | |
| 479 static const size_t kTableCount = ARRAYSIZE_UNSAFE(kTables); | |
| 480 static const size_t kIndexCount = ARRAYSIZE_UNSAFE(kIndexes); | |
| 481 if (!sql::MetaTable::DoesTableExist(db_.get())) | |
| 482 return CreateSchema(db_.get(), meta_table_.get(), | |
| 483 kCurrentVersion, kCompatibleVersion, | |
| 484 kTables, kTableCount, | |
| 485 kIndexes, kIndexCount); | |
| 486 | |
| 487 if (!meta_table_->Init(db_.get(), kCurrentVersion, kCompatibleVersion)) | |
| 488 return false; | |
| 489 | |
| 490 if (meta_table_->GetCompatibleVersionNumber() > kCurrentVersion) { | |
| 491 LOG(WARNING) << "Quota database is too new."; | |
| 492 return false; | |
| 493 } | |
| 494 | |
| 495 if (meta_table_->GetVersionNumber() < kCurrentVersion) { | |
| 496 if (!UpgradeSchema(meta_table_->GetVersionNumber())) | |
| 497 return ResetSchema(); | |
| 498 } | |
| 499 | |
| 500 #ifndef NDEBUG | |
| 501 DCHECK(sql::MetaTable::DoesTableExist(db_.get())); | |
| 502 for (size_t i = 0; i < kTableCount; ++i) { | |
| 503 DCHECK(db_->DoesTableExist(kTables[i].table_name)); | |
| 504 } | |
| 505 #endif | |
| 506 | |
| 507 return true; | |
| 508 } | |
| 509 | |
| 510 // static | |
| 511 bool QuotaDatabase::CreateSchema( | |
| 512 sql::Connection* database, | |
| 513 sql::MetaTable* meta_table, | |
| 514 int schema_version, int compatible_version, | |
| 515 const TableSchema* tables, size_t tables_size, | |
| 516 const IndexSchema* indexes, size_t indexes_size) { | |
| 517 // TODO(kinuko): Factor out the common code to create databases. | |
| 518 sql::Transaction transaction(database); | |
| 519 if (!transaction.Begin()) | |
| 520 return false; | |
| 521 | |
| 522 if (!meta_table->Init(database, schema_version, compatible_version)) | |
| 523 return false; | |
| 524 | |
| 525 for (size_t i = 0; i < tables_size; ++i) { | |
| 526 std::string sql("CREATE TABLE "); | |
| 527 sql += tables[i].table_name; | |
| 528 sql += tables[i].columns; | |
| 529 if (!database->Execute(sql.c_str())) { | |
| 530 VLOG(1) << "Failed to execute " << sql; | |
| 531 return false; | |
| 532 } | |
| 533 } | |
| 534 | |
| 535 for (size_t i = 0; i < indexes_size; ++i) { | |
| 536 std::string sql; | |
| 537 if (indexes[i].unique) | |
| 538 sql += "CREATE UNIQUE INDEX "; | |
| 539 else | |
| 540 sql += "CREATE INDEX "; | |
| 541 sql += indexes[i].index_name; | |
| 542 sql += " ON "; | |
| 543 sql += indexes[i].table_name; | |
| 544 sql += indexes[i].columns; | |
| 545 if (!database->Execute(sql.c_str())) { | |
| 546 VLOG(1) << "Failed to execute " << sql; | |
| 547 return false; | |
| 548 } | |
| 549 } | |
| 550 | |
| 551 return transaction.Commit(); | |
| 552 } | |
| 553 | |
| 554 bool QuotaDatabase::ResetSchema() { | |
| 555 DCHECK(!db_file_path_.empty()); | |
| 556 DCHECK(base::PathExists(db_file_path_)); | |
| 557 VLOG(1) << "Deleting existing quota data and starting over."; | |
| 558 | |
| 559 db_.reset(); | |
| 560 meta_table_.reset(); | |
| 561 | |
| 562 if (!sql::Connection::Delete(db_file_path_)) | |
| 563 return false; | |
| 564 | |
| 565 // So we can't go recursive. | |
| 566 if (is_recreating_) | |
| 567 return false; | |
| 568 | |
| 569 base::AutoReset<bool> auto_reset(&is_recreating_, true); | |
| 570 return LazyOpen(true); | |
| 571 } | |
| 572 | |
| 573 bool QuotaDatabase::UpgradeSchema(int current_version) { | |
| 574 if (current_version == 2) { | |
| 575 QuotaTableImporter importer; | |
| 576 typedef std::vector<QuotaTableEntry> QuotaTableEntries; | |
| 577 if (!DumpQuotaTable(base::Bind(&QuotaTableImporter::Append, | |
| 578 base::Unretained(&importer)))) { | |
| 579 return false; | |
| 580 } | |
| 581 ResetSchema(); | |
| 582 for (QuotaTableEntries::const_iterator iter = importer.entries.begin(); | |
| 583 iter != importer.entries.end(); ++iter) { | |
| 584 if (!SetHostQuota(iter->host, iter->type, iter->quota)) | |
| 585 return false; | |
| 586 } | |
| 587 Commit(); | |
| 588 return true; | |
| 589 } | |
| 590 return false; | |
| 591 } | |
| 592 | |
| 593 bool QuotaDatabase::DumpQuotaTable(const QuotaTableCallback& callback) { | |
| 594 if (!LazyOpen(true)) | |
| 595 return false; | |
| 596 | |
| 597 const char* kSql = "SELECT * FROM HostQuotaTable"; | |
| 598 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 599 | |
| 600 while (statement.Step()) { | |
| 601 QuotaTableEntry entry = QuotaTableEntry( | |
| 602 statement.ColumnString(0), | |
| 603 static_cast<StorageType>(statement.ColumnInt(1)), | |
| 604 statement.ColumnInt64(2)); | |
| 605 | |
| 606 if (!callback.Run(entry)) | |
| 607 return true; | |
| 608 } | |
| 609 | |
| 610 return statement.Succeeded(); | |
| 611 } | |
| 612 | |
| 613 bool QuotaDatabase::DumpOriginInfoTable( | |
| 614 const OriginInfoTableCallback& callback) { | |
| 615 | |
| 616 if (!LazyOpen(true)) | |
| 617 return false; | |
| 618 | |
| 619 const char* kSql = "SELECT * FROM OriginInfoTable"; | |
| 620 sql::Statement statement(db_->GetCachedStatement(SQL_FROM_HERE, kSql)); | |
| 621 | |
| 622 while (statement.Step()) { | |
| 623 OriginInfoTableEntry entry( | |
| 624 GURL(statement.ColumnString(0)), | |
| 625 static_cast<StorageType>(statement.ColumnInt(1)), | |
| 626 statement.ColumnInt(2), | |
| 627 base::Time::FromInternalValue(statement.ColumnInt64(3)), | |
| 628 base::Time::FromInternalValue(statement.ColumnInt64(4))); | |
| 629 | |
| 630 if (!callback.Run(entry)) | |
| 631 return true; | |
| 632 } | |
| 633 | |
| 634 return statement.Succeeded(); | |
| 635 } | |
| 636 | |
| 637 bool operator<(const QuotaDatabase::QuotaTableEntry& lhs, | |
| 638 const QuotaDatabase::QuotaTableEntry& rhs) { | |
| 639 if (lhs.host < rhs.host) return true; | |
| 640 if (rhs.host < lhs.host) return false; | |
| 641 if (lhs.type < rhs.type) return true; | |
| 642 if (rhs.type < lhs.type) return false; | |
| 643 return lhs.quota < rhs.quota; | |
| 644 } | |
| 645 | |
| 646 bool operator<(const QuotaDatabase::OriginInfoTableEntry& lhs, | |
| 647 const QuotaDatabase::OriginInfoTableEntry& rhs) { | |
| 648 if (lhs.origin < rhs.origin) return true; | |
| 649 if (rhs.origin < lhs.origin) return false; | |
| 650 if (lhs.type < rhs.type) return true; | |
| 651 if (rhs.type < lhs.type) return false; | |
| 652 if (lhs.used_count < rhs.used_count) return true; | |
| 653 if (rhs.used_count < lhs.used_count) return false; | |
| 654 return lhs.last_access_time < rhs.last_access_time; | |
| 655 } | |
| 656 | |
| 657 } // namespace quota | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 442383002:
Move storage-related files from webkit/ to new top-level directory storage/ (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src