/**
* Check whether this storage is permanently or temporarily
* unavailable
*
* @throws \OCP\Files\StorageNotAvailableException
* @throws \OCP\Files\StorageInvalidException
*/
public function checkStorageAvailability()
{
// see if we can find out why the share is unavailable
try {
$this->getShareInfo();
} catch (NotFoundException $e) {
// a 404 can either mean that the share no longer exists or there is no ownCloud on the remote
if ($this->testRemote()) {
// valid ownCloud instance means that the public share no longer exists
// since this is permanent (re-sharing the file will create a new token)
// we remove the invalid storage
$this->manager->removeShare($this->mountPoint);
$this->manager->getMountManager()->removeMount($this->mountPoint);
throw new StorageInvalidException();
} else {
// ownCloud instance is gone, likely to be a temporary server configuration error
throw new StorageNotAvailableException();
}
} catch (ForbiddenException $e) {
// auth error, remove share for now (provide a dialog in the future)
$this->manager->removeShare($this->mountPoint);
$this->manager->getMountManager()->removeMount($this->mountPoint);
throw new StorageInvalidException();
} catch (\GuzzleHttp\Exception\ConnectException $e) {
throw new StorageNotAvailableException();
} catch (\GuzzleHttp\Exception\RequestException $e) {
throw new StorageNotAvailableException();
} catch (\Exception $e) {
throw $e;
}
}
/**
* check if a file or folder has been updated since $time
*
* @param string $path
* @param int $time
* @throws \OCP\Files\StorageNotAvailableException
* @throws \OCP\Files\StorageInvalidException
* @return bool
*/
public function hasUpdated($path, $time)
{
// since for owncloud webdav servers we can rely on etag propagation we only need to check the root of the storage
// because of that we only do one check for the entire storage per request
if ($this->updateChecked) {
return false;
}
$this->updateChecked = true;
try {
return parent::hasUpdated('', $time);
} catch (StorageNotAvailableException $e) {
// see if we can find out why the share is unavailable\
try {
$this->getShareInfo();
} catch (NotFoundException $shareException) {
// a 404 can either mean that the share no longer exists or there is no ownCloud on the remote
if ($this->testRemote()) {
// valid ownCloud instance means that the public share no longer exists
// since this is permanent (re-sharing the file will create a new token)
// we remove the invalid storage
$this->manager->removeShare($this->mountPoint);
$this->manager->getMountManager()->removeMount($this->mountPoint);
throw new StorageInvalidException();
} else {
// ownCloud instance is gone, likely to be a temporary server configuration error
throw $e;
}
} catch (\Exception $shareException) {
// todo, maybe handle 403 better and ask the user for a new password
throw $e;
}
throw $e;
}
}
/**
* Remove the mount points
*
* @return mixed
* @return bool
*/
public function removeMount()
{
return $this->manager->removeShare($this->mountPoint);
}
/**
* Unshare a remote share
*
* @param array $params contains the shareID 'id' which should be unshared
* @return \OC_OCS_Result
*/
public static function unshare($params)
{
$externalManager = new Manager(\OC::$server->getDatabaseConnection(), Filesystem::getMountManager(), Filesystem::getLoader(), \OC::$server->getHTTPHelper(), \OC::$server->getNotificationManager(), \OC_User::getUser());
$shareInfo = $externalManager->getShare($params['id']);
if ($shareInfo === false) {
return new \OC_OCS_Result(null, 404, 'Share does not exist');
}
$mountPoint = '/' . \OC_User::getUser() . '/files' . $shareInfo['mountpoint'];
if ($externalManager->removeShare($mountPoint) === true) {
return new \OC_OCS_Result(null);
} else {
return new \OC_OCS_Result(null, 403, 'Could not unshare');
}
}