owncloud / core

		}

		$available=array('en');//english is always available

		$dir = self::findI18nDir($app);

		if(is_dir($dir)) {

			$files=scandir($dir);

			foreach($files as $file) {

				if(substr($file, -5, 5) === '.json' && substr($file, 0, 4) !== 'l10n') {

					$i = substr($file, 0, -5);

					$available[] = $i;

				}

			}

		}

		$config = \OC::$server->getConfig();

		// merge with translations from theme

		$theme = $config->getSystemValue('theme');

		if(!empty($theme)) {

			$themeDir = \OC::$SERVERROOT . '/themes/' . $theme . substr($dir, strlen(\OC::$SERVERROOT));

			if(is_dir($themeDir)) {

				$files=scandir($dir);

				foreach($files as $file) {

					if(substr($file, -5, 5) === '.json' && substr($file, 0, 4) !== 'l10n') {

						$i = substr($file, 0, -5);

						$available[] = $i;

					}

				}

			}

		}

		self::$availableLanguages[$app] = $available;