void StorageTracker::syncDeleteOrigin(const String& originIdentifier)
{
ASSERT(!isMainThread());
MutexLocker locker(m_databaseMutex);
if (!canDeleteOrigin(originIdentifier)) {
LOG_ERROR("Attempted to delete origin '%s' while it was being created\n", originIdentifier.ascii().data());
return;
}
openTrackerDatabase(false);
if (!m_database.isOpen())
return;
String path = databasePathForOrigin(originIdentifier);
if (path.isEmpty()) {
// It is possible to get a request from the API to delete the storage for an origin that
// has no such storage.
return;
}
SQLiteStatement deleteStatement(m_database, "DELETE FROM Origins where origin=?");
if (deleteStatement.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare deletion of origin '%s'", originIdentifier.ascii().data());
return;
}
deleteStatement.bindText(1, originIdentifier);
if (!deleteStatement.executeCommand()) {
LOG_ERROR("Unable to execute deletion of origin '%s'", originIdentifier.ascii().data());
return;
}
SQLiteFileSystem::deleteDatabaseFile(path);
bool shouldDeleteTrackerFiles = false;
{
MutexLocker locker(m_originSetMutex);
m_originSet.remove(originIdentifier);
shouldDeleteTrackerFiles = m_originSet.isEmpty();
}
if (shouldDeleteTrackerFiles) {
m_database.close();
SQLiteFileSystem::deleteDatabaseFile(trackerDatabasePath());
SQLiteFileSystem::deleteEmptyDatabaseDirectory(m_storageDirectoryPath);
}
{
MutexLocker locker(m_clientMutex);
if (m_client)
m_client->dispatchDidModifyOrigin(originIdentifier);
}
}
void StorageTracker::syncDeleteAllOrigins()
{
ASSERT(!isMainThread());
MutexLocker locker(m_databaseMutex);
openTrackerDatabase(false);
if (!m_database.isOpen())
return;
SQLiteStatement statement(m_database, "SELECT origin, path FROM Origins");
if (statement.prepare() != SQLResultOk) {
LOG_ERROR("Failed to prepare statement.");
return;
}
int result;
while ((result = statement.step()) == SQLResultRow) {
if (!canDeleteOrigin(statement.getColumnText(0)))
continue;
SQLiteFileSystem::deleteDatabaseFile(statement.getColumnText(1));
{
MutexLocker locker(m_clientMutex);
if (m_client)
m_client->dispatchDidModifyOrigin(statement.getColumnText(0));
}
}
if (result != SQLResultDone)
LOG_ERROR("Failed to read in all origins from the database.");
if (m_database.isOpen())
m_database.close();
if (!SQLiteFileSystem::deleteDatabaseFile(trackerDatabasePath())) {
// In the case where it is not possible to delete the database file (e.g some other program
// like a virus scanner is accessing it), make sure to remove all entries.
openTrackerDatabase(false);
if (!m_database.isOpen())
return;
SQLiteStatement deleteStatement(m_database, "DELETE FROM Origins");
if (deleteStatement.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare deletion of all origins");
return;
}
if (!deleteStatement.executeCommand()) {
LOG_ERROR("Unable to execute deletion of all origins");
return;
}
}
SQLiteFileSystem::deleteEmptyDatabaseDirectory(m_storageDirectoryPath);
}
// It is the caller's responsibility to make sure that nobody is trying to create, delete, open, or close databases in this origin while the deletion is
// taking place.
bool DatabaseTracker::deleteOrigin(SecurityOrigin* origin)
{
Vector<String> databaseNames;
{
MutexLocker lockDatabase(m_databaseGuard);
openTrackerDatabase(DontCreateIfDoesNotExist);
if (!m_database.isOpen())
return false;
if (!databaseNamesForOriginNoLock(origin, databaseNames)) {
LOG_ERROR("Unable to retrieve list of database names for origin %s", origin->databaseIdentifier().ascii().data());
return false;
}
if (!canDeleteOrigin(origin)) {
LOG_ERROR("Tried to delete an origin (%s) while either creating database in it or already deleting it", origin->databaseIdentifier().ascii().data());
ASSERT_NOT_REACHED();
return false;
}
recordDeletingOrigin(origin);
}
// We drop the lock here because holding locks during a call to deleteDatabaseFile will deadlock.
for (unsigned i = 0; i < databaseNames.size(); ++i) {
if (!deleteDatabaseFile(origin, databaseNames[i])) {
// Even if the file can't be deleted, we want to try and delete the rest, don't return early here.
LOG_ERROR("Unable to delete file for database %s in origin %s", databaseNames[i].ascii().data(), origin->databaseIdentifier().ascii().data());
}
}
{
MutexLocker lockDatabase(m_databaseGuard);
deleteOriginLockFor(origin);
doneDeletingOrigin(origin);
SQLiteStatement statement(m_database, "DELETE FROM Databases WHERE origin=?");
if (statement.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare deletion of databases from origin %s from tracker", origin->databaseIdentifier().ascii().data());
return false;
}
statement.bindText(1, origin->databaseIdentifier());
if (!statement.executeCommand()) {
LOG_ERROR("Unable to execute deletion of databases from origin %s from tracker", origin->databaseIdentifier().ascii().data());
return false;
}
SQLiteStatement originStatement(m_database, "DELETE FROM Origins WHERE origin=?");
if (originStatement.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare deletion of origin %s from tracker", origin->databaseIdentifier().ascii().data());
return false;
}
originStatement.bindText(1, origin->databaseIdentifier());
if (!originStatement.executeCommand()) {
LOG_ERROR("Unable to execute deletion of databases from origin %s from tracker", origin->databaseIdentifier().ascii().data());
return false;
}
SQLiteFileSystem::deleteEmptyDatabaseDirectory(originPath(origin));
RefPtr<SecurityOrigin> originPossiblyLastReference = origin;
bool isEmpty = true;
openTrackerDatabase(DontCreateIfDoesNotExist);
if (m_database.isOpen()) {
SQLiteStatement statement(m_database, "SELECT origin FROM Origins");
if (statement.prepare() != SQLResultOk)
LOG_ERROR("Failed to prepare statement.");
else if (statement.step() == SQLResultRow)
isEmpty = false;
}
// If we removed the last origin, do some additional deletion.
if (isEmpty) {
if (m_database.isOpen())
m_database.close();
SQLiteFileSystem::deleteDatabaseFile(trackerDatabasePath());
SQLiteFileSystem::deleteEmptyDatabaseDirectory(m_databaseDirectoryPath);
}
if (m_client) {
m_client->dispatchDidModifyOrigin(origin);
for (unsigned i = 0; i < databaseNames.size(); ++i)
m_client->dispatchDidModifyDatabase(origin, databaseNames[i]);
}
}
return true;
}
void StorageTracker::syncDeleteAllOrigins()
{
ASSERT(!isMainThread());
SQLiteTransactionInProgressAutoCounter transactionCounter;
LockHolder locker(m_databaseMutex);
openTrackerDatabase(false);
if (!m_database.isOpen())
return;
SQLiteStatement statement(m_database, "SELECT origin, path FROM Origins");
if (statement.prepare() != SQLITE_OK) {
LOG_ERROR("Failed to prepare statement.");
return;
}
int result;
while ((result = statement.step()) == SQLITE_ROW) {
if (!canDeleteOrigin(statement.getColumnText(0)))
continue;
deleteFile(statement.getColumnText(1));
{
LockHolder locker(m_clientMutex);
if (m_client)
m_client->dispatchDidModifyOrigin(statement.getColumnText(0));
}
}
if (result != SQLITE_DONE)
LOG_ERROR("Failed to read in all origins from the database.");
if (m_database.isOpen()) {
#if PLATFORM(IOS)
truncateDatabaseFile(m_database);
#endif
m_database.close();
}
#if !PLATFORM(IOS)
if (!deleteFile(trackerDatabasePath())) {
// In the case where it is not possible to delete the database file (e.g some other program
// like a virus scanner is accessing it), make sure to remove all entries.
openTrackerDatabase(false);
if (!m_database.isOpen())
return;
SQLiteStatement deleteStatement(m_database, "DELETE FROM Origins");
if (deleteStatement.prepare() != SQLITE_OK) {
LOG_ERROR("Unable to prepare deletion of all origins");
return;
}
if (!deleteStatement.executeCommand()) {
LOG_ERROR("Unable to execute deletion of all origins");
return;
}
}
deleteEmptyDirectory(m_storageDirectoryPath);
#endif
}
void StorageTracker::syncDeleteOrigin(const String& originIdentifier)
{
ASSERT(!isMainThread());
MutexLocker lockDatabase(m_databaseGuard);
if (!canDeleteOrigin(originIdentifier)) {
LOG_ERROR("Attempted to delete origin '%s' while it was being created\n", originIdentifier.ascii().data());
return;
}
openTrackerDatabase(false);
if (!m_database.isOpen())
return;
// Get origin's db file path, delete entry in tracker's db, then delete db file.
SQLiteStatement pathStatement(m_database, "SELECT path FROM Origins WHERE origin=?");
if (pathStatement.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare selection of path for origin '%s'", originIdentifier.ascii().data());
return;
}
pathStatement.bindText(1, originIdentifier);
int result = pathStatement.step();
if (result != SQLResultRow) {
LOG_ERROR("Unable to find origin '%s' in Origins table", originIdentifier.ascii().data());
return;
}
String path = pathStatement.getColumnText(0);
ASSERT(!path.isEmpty());
SQLiteStatement deleteStatement(m_database, "DELETE FROM Origins where origin=?");
if (deleteStatement.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare deletion of origin '%s'", originIdentifier.ascii().data());
return;
}
deleteStatement.bindText(1, originIdentifier);
if (!deleteStatement.executeCommand()) {
LOG_ERROR("Unable to execute deletion of origin '%s'", originIdentifier.ascii().data());
return;
}
SQLiteFileSystem::deleteDatabaseFile(path);
bool shouldDeleteTrackerFiles = false;
{
MutexLocker originLock(m_originSetGuard);
m_originSet.remove(originIdentifier);
shouldDeleteTrackerFiles = m_originSet.isEmpty();
}
if (shouldDeleteTrackerFiles) {
m_database.close();
SQLiteFileSystem::deleteDatabaseFile(trackerDatabasePath());
SQLiteFileSystem::deleteEmptyDatabaseDirectory(m_storageDirectoryPath);
}
{
MutexLocker lockClient(m_clientGuard);
if (m_client)
m_client->dispatchDidModifyOrigin(originIdentifier);
}
}
