owncloud / core

				chmod($dataDirectory, 0770);

				clearstatcache();

				$perms = substr(decoct(@fileperms($dataDirectory)), -3);

				if (substr($perms, 2, 1) != '0') {

					$errors[] = array(

						'error' => $l->t('Data directory (%s) is readable by other users', array($dataDirectory)),

						'hint' => $permissionsModHint

					);

				}

			}

		}

		return $errors;

	public static function checkDataDirectoryValidity($dataDirectory) {

		$l = \OC::$server->getL10N('lib');

		$errors = [];

		if (!self::runningOnWindows() && $dataDirectory[0] !== '/') {

			$errors[] = [

				'error' => $l->t('Data directory (%s) must be an absolute path', [$dataDirectory]),

				'hint' => $l->t('Check the value of "datadirectory" in your configuration')

			];

		}

		if (!file_exists($dataDirectory . '/.ocdata')) {

			$errors[] = [

				'error' => $l->t('Data directory (%s) is invalid', [$dataDirectory]),

				'hint' => $l->t('Check the value of "datadirectory" in your configuration')

			];

		}

		if (!file_exists($dataDirectory . '/.ocdata')) {

			$errors[] = [

				'error' => $l->t('Data directory (%s) is invalid', [$dataDirectory]),

				'hint' => $l->t('Please check that the data directory contains a file' .

					' ".ocdata" in its root.')

			];

		}

		return $errors;

	}