/**
* Delete the storage with the given id.
*
* @param int $id storage id
*
* @throws NotFoundException if no storage was found with the given id
*/
public function removeStorage($id)
{
$existingMount = $this->dbConfig->getMountById($id);
if (!is_array($existingMount)) {
throw new NotFoundException('Storage with id "' . $id . '" not found');
}
$this->dbConfig->removeMount($id);
$deletedStorage = $this->getStorageConfigFromDBMount($existingMount);
$this->triggerHooks($deletedStorage, Filesystem::signal_delete_mount);
// delete oc_storages entries and oc_filecache
try {
$rustyStorageId = $this->getRustyStorageIdFromConfig($deletedStorage);
\OC\Files\Cache\Storage::remove($rustyStorageId);
} catch (\Exception $e) {
// can happen either for invalid configs where the storage could not
// be instantiated or whenever $user vars where used, in which case
// the storage id could not be computed
\OCP\Util::writeLog('files_external', 'Exception: "' . $e->getMessage() . '"', \OCP\Util::ERROR);
}
}
/**
* Fix the given legacy storage by renaming the old id
* to the new id. If the new id already exists, whichever
* storage that has data in the file cache will be used.
* If both have data, nothing will be done and false is
* returned.
*
* @param string $oldId old storage id
* @param int $oldNumericId old storage numeric id
* @param string $userId
* @return bool true if fixed, false otherwise
* @throws RepairException
*/
private function fixLegacyStorage($oldId, $oldNumericId, $userId = null)
{
// check whether the new storage already exists
if (is_null($userId)) {
$userId = $this->extractUserId($oldId);
}
$newId = 'home::' . $userId;
// check if target id already exists
$newNumericId = Storage::getNumericStorageId($newId);
if (!is_null($newNumericId)) {
$newNumericId = (int) $newNumericId;
// try and resolve the conflict
// check which one of "local::" or "home::" needs to be kept
$this->findStorageInCacheStatement->execute(array($oldNumericId, $newNumericId));
$row1 = $this->findStorageInCacheStatement->fetch();
$row2 = $this->findStorageInCacheStatement->fetch();
$this->findStorageInCacheStatement->closeCursor();
if ($row2 !== false) {
// two results means both storages have data, not auto-fixable
throw new RepairException('Could not automatically fix legacy storage ' . '"' . $oldId . '" => "' . $newId . '"' . ' because they both have data.');
}
if ($row1 === false || (int) $row1['storage'] === $oldNumericId) {
// old storage has data, then delete the empty new id
$toDelete = $newId;
} else {
if ((int) $row1['storage'] === $newNumericId) {
// new storage has data, then delete the empty old id
$toDelete = $oldId;
} else {
// unknown case, do not continue
return false;
}
}
// delete storage including file cache
Storage::remove($toDelete);
// if we deleted the old id, the new id will be used
// automatically
if ($toDelete === $oldId) {
// nothing more to do
return true;
}
}
// rename old id to new id
$newId = Storage::adjustStorageId($newId);
$oldId = Storage::adjustStorageId($oldId);
$rowCount = $this->renameStorageStatement->execute(array($newId, $oldId));
$this->renameStorageStatement->closeCursor();
return $rowCount === 1;
}
/**
* Updates old storage ids (v0.2.1 and older) that are based on key and secret to new ones based on the bucket name.
* TODO Do this in an update.php. requires iterating over all users and loading the mount.json from their home
*
* @param array $params
*/
public function updateLegacyId(array $params)
{
$oldId = 'amazon::' . $params['key'] . md5($params['secret']);
// find by old id or bucket
$stmt = \OC::$server->getDatabaseConnection()->prepare('SELECT `numeric_id`, `id` FROM `*PREFIX*storages` WHERE `id` IN (?, ?)');
$stmt->execute(array($oldId, $this->id));
while ($row = $stmt->fetch()) {
$storages[$row['id']] = $row['numeric_id'];
}
if (isset($storages[$this->id]) && isset($storages[$oldId])) {
// if both ids exist, delete the old storage and corresponding filecache entries
\OC\Files\Cache\Storage::remove($oldId);
} else {
if (isset($storages[$oldId])) {
// if only the old id exists do an update
$stmt = \OC::$server->getDatabaseConnection()->prepare('UPDATE `*PREFIX*storages` SET `id` = ? WHERE `id` = ?');
$stmt->execute(array($this->id, $oldId));
}
}
// only the bucket based id may exist, do nothing
}
/**
* Delete the user
*
* @return bool
*/
public function delete()
{
if ($this->emitter) {
$this->emitter->emit('\\OC\\User', 'preDelete', array($this));
}
$result = $this->backend->deleteUser($this->uid);
if ($result) {
// FIXME: Feels like an hack - suggestions?
// We have to delete the user from all groups
foreach (\OC_Group::getUserGroups($this->uid) as $i) {
\OC_Group::removeFromGroup($this->uid, $i);
}
// Delete the user's keys in preferences
\OC::$server->getConfig()->deleteAllUserValues($this->uid);
// Delete user files in /data/
\OC_Helper::rmdirr(\OC_User::getHome($this->uid));
// Delete the users entry in the storage table
\OC\Files\Cache\Storage::remove('home::' . $this->uid);
\OC::$server->getCommentsManager()->deleteReferencesOfActor('users', $this->uid);
\OC::$server->getCommentsManager()->deleteReadMarksFromUser($this);
}
if ($this->emitter) {
$this->emitter->emit('\\OC\\User', 'postDelete', array($this));
}
return !($result === false);
}
/**
* @brief delete a user
* @param string $uid The username of the user to delete
* @return bool
*
* Deletes a user
*/
public static function deleteUser($uid)
{
$user = self::getManager()->get($uid);
if ($user) {
$result = $user->delete();
// if delete was successful we clean-up the rest
if ($result) {
// We have to delete the user from all groups
foreach (OC_Group::getUserGroups($uid) as $i) {
OC_Group::removeFromGroup($uid, $i);
}
// Delete the user's keys in preferences
OC_Preferences::deleteUser($uid);
// Delete user files in /data/
$home = \OC_User::getHome($uid);
OC_Helper::rmdirr($home);
// Delete the users entry in the storage table
\OC\Files\Cache\Storage::remove('home::' . $uid);
\OC\Files\Cache\Storage::remove('local::' . $home . '/');
// Remove it from the Cache
self::getManager()->delete($uid);
}
return true;
} else {
return false;
}
}
