/**
* @brief remember the file which should be deleted and it's owner
* @param array $params
* @return boolean
*/
public static function preDelete($params)
{
$path = $params[\OC\Files\Filesystem::signal_param_path];
// skip this method if the trash bin is enabled or if we delete a file
// outside of /data/user/files
if (\OCP\App::isEnabled('files_trashbin')) {
return true;
}
$util = new Util(new \OC_FilesystemView('/'), \OCP\USER::getUser());
list($owner, $ownerPath) = $util->getUidAndFilename($path);
self::$deleteFiles[$params[\OC\Files\Filesystem::signal_param_path]] = array('uid' => $owner, 'path' => $ownerPath);
}
/**
* @medium
*/
function testGetUidAndFilename()
{
\OC_User::setUserId(\Test_Encryption_Util::TEST_ENCRYPTION_UTIL_USER1);
$filename = '/tmp-' . uniqid() . '.test';
// Disable encryption proxy to prevent recursive calls
$proxyStatus = \OC_FileProxy::$enabled;
\OC_FileProxy::$enabled = false;
$this->view->file_put_contents($this->userId . '/files/' . $filename, $this->dataShort);
// Re-enable proxy - our work is done
\OC_FileProxy::$enabled = $proxyStatus;
$util = new Encryption\Util($this->view, $this->userId);
list($fileOwnerUid, $file) = $util->getUidAndFilename($filename);
$this->assertEquals(\Test_Encryption_Util::TEST_ENCRYPTION_UTIL_USER1, $fileOwnerUid);
$this->assertEquals($file, $filename);
$this->view->unlink($this->userId . '/files/' . $filename);
}
/**
* retrieve shareKey for an encrypted file
* @param \OC\Files\View $view
* @param string $userId
* @param \OCA\Encryption\Util $util
* @param string $filePath
* @return string file key or false
* @note The sharekey returned is encrypted. Decryption
* of the keyfile must be performed by client code
*/
public static function getShareKey(\OC\Files\View $view, $userId, $util, $filePath)
{
// try reusing key file if part file
$proxyStatus = \OC_FileProxy::$enabled;
\OC_FileProxy::$enabled = false;
list($owner, $filename) = $util->getUidAndFilename($filePath);
$filename = Helper::stripPartialFileExtension($filename);
// in case of system wide mount points the keys are stored directly in the data directory
if ($util->isSystemWideMountPoint($filename)) {
$shareKeyPath = '/files_encryption/share-keys/' . $filename . '.' . $userId . '.shareKey';
} else {
$shareKeyPath = '/' . $owner . '/files_encryption/share-keys/' . $filename . '.' . $userId . '.shareKey';
}
if ($view->file_exists($shareKeyPath)) {
$result = $view->file_get_contents($shareKeyPath);
} else {
$result = false;
}
\OC_FileProxy::$enabled = $proxyStatus;
return $result;
}
/**
* unmount file from yourself
* remember files/folders which get unmounted
*/
public static function preUmount($params)
{
$path = $params[\OC\Files\Filesystem::signal_param_path];
$user = \OCP\USER::getUser();
$view = new \OC\Files\View();
$itemType = $view->is_dir('/' . $user . '/files' . $path) ? 'folder' : 'file';
$util = new Util($view, $user);
list($owner, $ownerPath) = $util->getUidAndFilename($path);
self::$umountedFiles[$params[\OC\Files\Filesystem::signal_param_path]] = array('uid' => $owner, 'path' => $ownerPath, 'itemType' => $itemType);
}
