Merge pull request #3156 from owncloud/trashbin_for_encryption_keys_against_master
Trashbin for encryption keys now against master
This commit is contained in:
FlorinPeter
commit
4ab3614248
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@ -39,14 +39,15 @@ class Trashbin {
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$view = new \OC\Files\View('/'. $user);
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if (!$view->is_dir('files_trashbin')) {
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$view->mkdir('files_trashbin');
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$view->mkdir("files_trashbin/files");
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$view->mkdir("files_trashbin/versions");
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$view->mkdir("files_trashbin/keyfiles");
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$view->mkdir('files_trashbin/files');
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$view->mkdir('files_trashbin/versions');
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$view->mkdir('files_trashbin/keyfiles');
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$view->mkdir('files_trashbin/share-keys');
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}
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$path_parts = pathinfo($file_path);
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$deleted = $path_parts['basename'];
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$filename = $path_parts['basename'];
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$location = $path_parts['dirname'];
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$timestamp = time();
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$mime = $view->getMimeType('files'.$file_path);
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@ -62,45 +63,24 @@ class Trashbin {
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$trashbinSize = self::calculateSize(new \OC\Files\View('/'. $user.'/files_trashbin'));
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}
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$sizeOfAddedFiles = self::copy_recursive($file_path, 'files_trashbin/files/'.$deleted.'.d'.$timestamp, $view);
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if ( $view->file_exists('files_trashbin/files/'.$deleted.'.d'.$timestamp) ) {
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$sizeOfAddedFiles = self::copy_recursive($file_path, 'files_trashbin/files/'.$filename.'.d'.$timestamp, $view);
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if ( $view->file_exists('files_trashbin/files/'.$filename.'.d'.$timestamp) ) {
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$trashbinSize += $sizeOfAddedFiles;
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$query = \OC_DB::prepare("INSERT INTO `*PREFIX*files_trash` (`id`,`timestamp`,`location`,`type`,`mime`,`user`) VALUES (?,?,?,?,?,?)");
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$result = $query->execute(array($deleted, $timestamp, $location, $type, $mime, $user));
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$result = $query->execute(array($filename, $timestamp, $location, $type, $mime, $user));
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if ( !$result ) { // if file couldn't be added to the database than also don't store it in the trash bin.
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$view->deleteAll('files_trashbin/files/'.$deleted.'.d'.$timestamp);
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$view->deleteAll('files_trashbin/files/'.$filename.'.d'.$timestamp);
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\OC_Log::write('files_trashbin', 'trash bin database couldn\'t be updated', \OC_log::ERROR);
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return;
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}
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\OCP\Util::emitHook('\OCA\Files_Trashbin\Trashbin', 'post_moveToTrash',
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array('filePath' => \OC\Files\Filesystem::normalizePath($file_path),
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'trashPath' => \OC\Files\Filesystem::normalizePath($deleted.'.d'.$timestamp)));
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// Take care of file versions
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if ( \OCP\App::isEnabled('files_versions') ) {
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if ( $view->is_dir('files_versions/'.$file_path) ) {
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$trashbinSize += self::calculateSize(new \OC\Files\View('/'. $user.'/files_versions/'.$file_path));
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$view->rename('files_versions/'.$file_path, 'files_trashbin/versions'. $deleted.'.d'.$timestamp);
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} else if ( $versions = \OCA\Files_Versions\Storage::getVersions($user, $file_path) ) {
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foreach ($versions as $v) {
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$trashbinSize += $view->filesize('files_versions'.$v['path'].'.v'.$v['version']);
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$view->rename('files_versions'.$v['path'].'.v'.$v['version'], 'files_trashbin/versions/'. $deleted.'.v'.$v['version'].'.d'.$timestamp);
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}
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}
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}
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// Take care of encryption keys
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$keyfile = \OC\Files\Filesystem::normalizePath('files_encryption/keyfiles/'.$file_path);
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if ( \OCP\App::isEnabled('files_encryption') && $view->file_exists($keyfile.'.key') ) {
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if ( $view->is_dir('files'.$file_path) ) {
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$trashbinSize += self::calculateSize(new \OC\Files\View('/'.$user.'/'.$keyfile));
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$view->rename($keyfile, 'files_trashbin/keyfiles/'. $deleted.'.d'.$timestamp);
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} else {
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$trashbinSize += $view->filesize($keyfile.'.key');
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$view->rename($keyfile.'.key', 'files_trashbin/keyfiles/'. $deleted.'.key.d'.$timestamp);
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}
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}
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'trashPath' => \OC\Files\Filesystem::normalizePath($filename.'.d'.$timestamp)));
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$trashbinSize += self::retainVersions($view, $file_path, $filename, $timestamp);
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$trashbinSize += self::retainEncryptionKeys($view, $file_path, $filename, $timestamp);
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} else {
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\OC_Log::write('files_trashbin', 'Couldn\'t move '.$file_path.' to the trash bin', \OC_log::ERROR);
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}
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@ -111,15 +91,134 @@ class Trashbin {
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}
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/**
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* Move file versions to trash so that they can be restored later
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*
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* @param \OC\Files\View $view
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* @param $file_path path to original file
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* @param $filename of deleted file
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* @param $timestamp when the file was deleted
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*
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* @return size of stored versions
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*/
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private static function retainVersions($view, $file_path, $filename, $timestamp) {
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$size = 0;
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if (\OCP\App::isEnabled('files_versions')) {
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// disable proxy to prevent recursive calls
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$proxyStatus = \OC_FileProxy::$enabled;
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\OC_FileProxy::$enabled = false;
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$user = \OCP\User::getUser();
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if ($view->is_dir('files_versions/' . $file_path)) {
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$size += self::calculateSize(new \OC\Files\View('/' . $user . '/files_versions/' . $file_path));
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$view->rename('files_versions/' . $file_path, 'files_trashbin/versions/' . $filename . '.d' . $timestamp);
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} else if ($versions = \OCA\Files_Versions\Storage::getVersions($user, $file_path)) {
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foreach ($versions as $v) {
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$size += $view->filesize('files_versions' . $v['path'] . '.v' . $v['version']);
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$view->rename('files_versions' . $v['path'] . '.v' . $v['version'], 'files_trashbin/versions/' . $filename . '.v' . $v['version'] . '.d' . $timestamp);
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}
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}
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// enable proxy
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\OC_FileProxy::$enabled = $proxyStatus;
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}
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return $size;
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}
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/**
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* Move encryption keys to trash so that they can be restored later
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*
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* @param \OC\Files\View $view
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* @param $file_path path to original file
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* @param $filename of deleted file
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* @param $timestamp when the file was deleted
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*
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* @return size of encryption keys
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*/
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private static function retainEncryptionKeys($view, $file_path, $filename, $timestamp) {
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$size = 0;
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if (\OCP\App::isEnabled('files_encryption')) {
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$user = \OCP\User::getUser();
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// disable proxy to prevent recursive calls
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$proxyStatus = \OC_FileProxy::$enabled;
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\OC_FileProxy::$enabled = false;
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// retain key files
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$keyfile = \OC\Files\Filesystem::normalizePath('files_encryption/keyfiles/' . $file_path);
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if ($view->is_dir($keyfile) || $view->file_exists($keyfile . '.key')) {
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$user = \OCP\User::getUser();
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// move keyfiles
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if ($view->is_dir($keyfile)) {
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$size += self::calculateSize(new \OC\Files\View('/' . $user . '/' . $keyfile));
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$view->rename($keyfile, 'files_trashbin/keyfiles/' . $filename . '.d' . $timestamp);
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} else {
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$size += $view->filesize($keyfile . '.key');
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$view->rename($keyfile . '.key', 'files_trashbin/keyfiles/' . $filename . '.key.d' . $timestamp);
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}
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}
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// retain share keys
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$sharekeys = \OC\Files\Filesystem::normalizePath('files_encryption/share-keys/' . $file_path);
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if ($view->is_dir($sharekeys)) {
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$size += self::calculateSize(new \OC\Files\View('/' . $user . '/' . $sharekeys));
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$view->rename($sharekeys, 'files_trashbin/share-keys/' . $filename . '.d' . $timestamp);
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} else {
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// get local path to share-keys
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$localShareKeysPath = $view->getLocalFile($sharekeys);
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// handle share-keys
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$matches = glob(preg_quote($localShareKeysPath).'*.shareKey');
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foreach ($matches as $src) {
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// get source file parts
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$pathinfo = pathinfo($src);
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// we only want to keep the owners key so we can access the private key
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$ownerShareKey = $filename . '.' . $user. '.shareKey';
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// if we found the share-key for the owner, we need to move it to files_trashbin
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if($pathinfo['basename'] == $ownerShareKey) {
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// calculate size
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$size += $view->filesize($sharekeys. '.' . $user. '.shareKey');
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// move file
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$view->rename($sharekeys. '.' . $user. '.shareKey', 'files_trashbin/share-keys/' . $ownerShareKey . '.d' . $timestamp);
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} else {
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// calculate size
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$size += filesize($src);
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// don't keep other share-keys
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unlink($src);
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}
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}
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}
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// enable proxy
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\OC_FileProxy::$enabled = $proxyStatus;
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}
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return $size;
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}
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/**
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* restore files from trash bin
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* @param $file path to the deleted file
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* @param $filename name of the file
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* @param $timestamp time when the file was deleted
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*/
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*
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* @return bool
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*/
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public static function restore($file, $filename, $timestamp) {
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$user = \OCP\User::getUser();
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$user = \OCP\User::getUser();
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$view = new \OC\Files\View('/'.$user);
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$trashbinSize = self::getTrashbinSize($user);
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@ -157,8 +256,17 @@ class Trashbin {
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// we need a extension in case a file/dir with the same name already exists
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$ext = self::getUniqueExtension($location, $filename, $view);
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$mtime = $view->filemtime($source);
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if( $view->rename($source, $target.$ext) ) {
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$view->touch($target.$ext, $mtime);
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// disable proxy to prevent recursive calls
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$proxyStatus = \OC_FileProxy::$enabled;
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\OC_FileProxy::$enabled = false;
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// restore file
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$restoreResult = $view->rename($source, $target.$ext);
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// handle the restore result
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if( $restoreResult ) {
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$view->touch($target.$ext, $mtime);
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\OCP\Util::emitHook('\OCA\Files_Trashbin\Trashbin', 'post_restore',
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array('filePath' => \OC\Files\Filesystem::normalizePath('/'.$location.'/'.$filename.$ext),
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'trashPath' => \OC\Files\Filesystem::normalizePath($file)));
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@ -167,68 +275,183 @@ class Trashbin {
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} else {
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$trashbinSize -= $view->filesize($target.$ext);
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}
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// if versioning app is enabled, copy versions from the trash bin back to the original location
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if ( \OCP\App::isEnabled('files_versions') ) {
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if ($timestamp ) {
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$versionedFile = $filename;
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} else {
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$versionedFile = $file;
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}
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if ( $result[0]['type'] === 'dir' ) {
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$trashbinSize -= self::calculateSize(new \OC\Files\View('/'.$user.'/'.'files_trashbin/versions/'. $file));
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$view->rename(\OC\Files\Filesystem::normalizePath('files_trashbin/versions/'. $file), \OC\Files\Filesystem::normalizePath('files_versions/'.$location.'/'.$filename.$ext));
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} else if ( $versions = self::getVersionsFromTrash($versionedFile, $timestamp) ) {
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foreach ($versions as $v) {
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if ($timestamp ) {
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$trashbinSize -= $view->filesize('files_trashbin/versions/'.$versionedFile.'.v'.$v.'.d'.$timestamp);
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$view->rename('files_trashbin/versions/'.$versionedFile.'.v'.$v.'.d'.$timestamp, 'files_versions/'.$location.'/'.$filename.$ext.'.v'.$v);
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} else {
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$trashbinSize -= $view->filesize('files_trashbin/versions/'.$versionedFile.'.v'.$v);
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$view->rename('files_trashbin/versions/'.$versionedFile.'.v'.$v, 'files_versions/'.$location.'/'.$filename.$ext.'.v'.$v);
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}
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}
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}
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}
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// Take care of encryption keys TODO! Get '.key' in file between file name and delete date (also for permanent delete!)
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$parts = pathinfo($file);
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if ( $result[0]['type'] === 'dir' ) {
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$keyfile = \OC\Files\Filesystem::normalizePath('files_trashbin/keyfiles/'.$parts['dirname'].'/'.$filename);
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} else {
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$keyfile = \OC\Files\Filesystem::normalizePath('files_trashbin/keyfiles/'.$parts['dirname'].'/'.$filename.'.key');
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}
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if ($timestamp) {
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$keyfile .= '.d'.$timestamp;
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}
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if ( \OCP\App::isEnabled('files_encryption') && $view->file_exists($keyfile) ) {
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if ( $result[0]['type'] === 'dir' ) {
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$trashbinSize -= self::calculateSize(new \OC\Files\View('/'.$user.'/'.$keyfile));
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$view->rename($keyfile, 'files_encryption/keyfiles/'. $location.'/'.$filename);
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} else {
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$trashbinSize -= $view->filesize($keyfile);
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$view->rename($keyfile, 'files_encryption/keyfiles/'. $location.'/'.$filename.'.key');
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}
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}
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$trashbinSize -= self::restoreVersions($view, $file, $filename, $ext, $location, $timestamp);
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$trashbinSize -= self::restoreEncryptionKeys($view, $file, $filename, $ext, $location, $timestamp);
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if ( $timestamp ) {
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$query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=? AND `id`=? AND `timestamp`=?');
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$query->execute(array($user,$filename,$timestamp));
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}
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self::setTrashbinSize($user, $trashbinSize);
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// enable proxy
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\OC_FileProxy::$enabled = $proxyStatus;
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return true;
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} else {
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\OC_Log::write('files_trashbin', 'Couldn\'t restore file from trash bin, '.$filename, \OC_log::ERROR);
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}
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// enable proxy
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\OC_FileProxy::$enabled = $proxyStatus;
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return false;
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}
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/**
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* @brief restore versions from trash bin
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*
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* @param \OC\Files\View $view file view
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* @param $file complete path to file
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* @param $filename name of file
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* @param $ext file extension in case a file with the same $filename already exists
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* @param $location location if file
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* @param $timestamp deleteion time
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*
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* @return size of restored versions
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*/
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private static function restoreVersions($view, $file, $filename, $ext, $location, $timestamp) {
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$size = 0;
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if (\OCP\App::isEnabled('files_versions')) {
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// disable proxy to prevent recursive calls
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$proxyStatus = \OC_FileProxy::$enabled;
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\OC_FileProxy::$enabled = false;
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$user = \OCP\User::getUser();
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if ($timestamp) {
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$versionedFile = $filename;
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} else {
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$versionedFile = $file;
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}
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if ($view->is_dir('/files_trashbin/versions/'.$file)) {
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$size += self::calculateSize(new \OC\Files\View('/' . $user . '/' . 'files_trashbin/versions/' . $file));
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$view->rename(\OC\Files\Filesystem::normalizePath('files_trashbin/versions/' . $file), \OC\Files\Filesystem::normalizePath('files_versions/' . $location . '/' . $filename . $ext));
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} else if ($versions = self::getVersionsFromTrash($versionedFile, $timestamp)) {
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foreach ($versions as $v) {
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if ($timestamp) {
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$size += $view->filesize('files_trashbin/versions/' . $versionedFile . '.v' . $v . '.d' . $timestamp);
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$view->rename('files_trashbin/versions/' . $versionedFile . '.v' . $v . '.d' . $timestamp, 'files_versions/' . $location . '/' . $filename . $ext . '.v' . $v);
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} else {
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$size += $view->filesize('files_trashbin/versions/' . $versionedFile . '.v' . $v);
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$view->rename('files_trashbin/versions/' . $versionedFile . '.v' . $v, 'files_versions/' . $location . '/' . $filename . $ext . '.v' . $v);
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}
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}
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}
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// enable proxy
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\OC_FileProxy::$enabled = $proxyStatus;
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}
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return $size;
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}
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/**
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* @brief restore encryption keys from trash bin
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*
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* @param \OC\Files\View $view
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* @param $file complete path to file
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* @param $filename name of file
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* @param $ext file extension in case a file with the same $filename already exists
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* @param $location location if file
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* @param $timestamp deleteion time
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*
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* @return size of restored encrypted file
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*/
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private static function restoreEncryptionKeys($view, $file, $filename, $ext, $location, $timestamp) {
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// Take care of encryption keys TODO! Get '.key' in file between file name and delete date (also for permanent delete!)
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$size = 0;
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if (\OCP\App::isEnabled('files_encryption')) {
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$user = \OCP\User::getUser();
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$path_parts = pathinfo($file);
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$source_location = $path_parts['dirname'];
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if ($view->is_dir('/files_trashbin/keyfiles/'.$file)) {
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if($source_location != '.') {
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$keyfile = \OC\Files\Filesystem::normalizePath('files_trashbin/keyfiles/' . $source_location . '/' . $filename);
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$sharekey = \OC\Files\Filesystem::normalizePath('files_trashbin/share-keys/' . $source_location . '/' . $filename);
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} else {
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$keyfile = \OC\Files\Filesystem::normalizePath('files_trashbin/keyfiles/' . $filename);
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$sharekey = \OC\Files\Filesystem::normalizePath('files_trashbin/share-keys/' . $filename);
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}
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} else {
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$keyfile = \OC\Files\Filesystem::normalizePath('files_trashbin/keyfiles/' . $source_location . '/' . $filename . '.key');
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}
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if ($timestamp) {
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$keyfile .= '.d' . $timestamp;
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}
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// disable proxy to prevent recursive calls
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$proxyStatus = \OC_FileProxy::$enabled;
|
||||
\OC_FileProxy::$enabled = false;
|
||||
|
||||
if ($view->file_exists($keyfile)) {
|
||||
// handle directory
|
||||
if ($view->is_dir($keyfile)) {
|
||||
|
||||
// handle keyfiles
|
||||
$size += self::calculateSize(new \OC\Files\View('/' . $user . '/' . $keyfile));
|
||||
$view->rename($keyfile, 'files_encryption/keyfiles/' . $location . '/' . $filename . $ext);
|
||||
|
||||
// handle share-keys
|
||||
if ($timestamp) {
|
||||
$sharekey .= '.d' . $timestamp;
|
||||
}
|
||||
$view->rename($sharekey, 'files_encryption/share-keys/' . $location . '/' . $filename . $ext);
|
||||
|
||||
} else {
|
||||
// handle keyfiles
|
||||
$size += $view->filesize($keyfile);
|
||||
$view->rename($keyfile, 'files_encryption/keyfiles/' . $location . '/' . $filename . $ext . '.key');
|
||||
|
||||
// handle share-keys
|
||||
$ownerShareKey = \OC\Files\Filesystem::normalizePath('files_trashbin/share-keys/' . $source_location . '/' . $filename . '.' . $user. '.shareKey');
|
||||
if ($timestamp) {
|
||||
$ownerShareKey .= '.d' . $timestamp;
|
||||
}
|
||||
|
||||
$size += $view->filesize($ownerShareKey);
|
||||
|
||||
// move only owners key
|
||||
$view->rename($ownerShareKey, 'files_encryption/share-keys/' . $location . '/' . $filename . $ext . '.' . $user. '.shareKey');
|
||||
|
||||
// try to re-share if file is shared
|
||||
$filesystemView = new \OC_FilesystemView('/');
|
||||
$session = new \OCA\Encryption\Session($filesystemView);
|
||||
$util = new \OCA\Encryption\Util($filesystemView, $user);
|
||||
|
||||
// fix the file size
|
||||
$absolutePath = \OC\Files\Filesystem::normalizePath('/' . $user . '/files/'. $location. '/' .$filename);
|
||||
$util->fixFileSize($absolutePath);
|
||||
|
||||
// get current sharing state
|
||||
$sharingEnabled = \OCP\Share::isEnabled();
|
||||
|
||||
// get the final filename
|
||||
$target = \OC\Files\Filesystem::normalizePath($location.'/'.$filename);
|
||||
|
||||
// get users sharing this file
|
||||
$usersSharing = $util->getSharingUsersArray($sharingEnabled, $target.$ext, $user);
|
||||
|
||||
// Attempt to set shareKey
|
||||
$util->setSharedFileKeyfiles($session, $usersSharing, $target.$ext);
|
||||
}
|
||||
}
|
||||
|
||||
// enable proxy
|
||||
\OC_FileProxy::$enabled = $proxyStatus;
|
||||
}
|
||||
return $size;
|
||||
}
|
||||
|
||||
/**
|
||||
* delete file from trash bin permanently
|
||||
* @brief delete file from trash bin permanently
|
||||
*
|
||||
* @param $filename path to the file
|
||||
* @param $timestamp of deletion time
|
||||
*
|
||||
* @return size of deleted files
|
||||
*/
|
||||
public static function delete($filename, $timestamp=null) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue