owncloud / core

			}

		}

		if ($date < $today) {

			$message = 'Cannot set expiration date. Expiration date is in the past';

			$message_t = $l->t('Cannot set expiration date. Expiration date is in the past');

			\OCP\Util::writeLog('OCP\Share', $message, \OCP\Util::WARN);

			throw new \Exception($message_t);

		}

		return $date;

	}

					throw new \Exception($message_t);

				}

				return self::$backends[$itemType];

			} else {

				$message = 'Sharing backend %s not found';

				$message_t = $l->t('Sharing backend %s not found', [$class]);

				\OCP\Util::writeLog('OCP\Share', \sprintf($message, $class), \OCP\Util::ERROR);

				throw new \Exception($message_t);

			}

		}

		$message = 'Sharing backend for %s not found';

		$message_t = $l->t('Sharing backend for %s not found', [$itemType]);