owncloud / core

		// Verify share type and sharing conditions are met

		if ($shareType === self::SHARE_TYPE_USER) {

			if ($shareWith == $uidOwner) {

				$message = 'Sharing %s failed, because you can not share with yourself';

				$message_t = $l->t('Sharing %s failed, because you can not share with yourself', [$itemName]);

				\OCP\Util::writeLog('OCP\Share', \sprintf($message, $itemSourceName), \OCP\Util::DEBUG);

				throw new \Exception($message_t);

			}

			if (!\OC_User::userExists($shareWith)) {

				$message = 'Sharing %s failed, because the user %s does not exist';

				$message_t = $l->t('Sharing %s failed, because the user %s does not exist', [$itemSourceName, $shareWith]);

			}

			return $send;

		} else {

			// Future share types need to include their own conditions

			$message = 'Share type %s is not valid for %s';

			$message_t = $l->t('Share type %s is not valid for %s', [$shareType, $itemSource]);

			\OCP\Util::writeLog('OCP\Share', \sprintf($message, $shareType, $itemSource), \OCP\Util::DEBUG);

			throw new \Exception($message_t);

		}

		// Put the item into the database

		$result = self::put($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $permissions, null, null, $itemSourceName, $expirationDate);

			}

		}

		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]);

						$result['fileSource'] = null;

					}

				}

			} else {

				$message = 'Sharing %s failed, because resharing is not allowed';

				$message_t = $l->t('Sharing %s failed, because resharing is not allowed', [$itemSourceName]);

				\OCP\Util::writeLog('OCP\Share', \sprintf($message, $itemSourceName), \OCP\Util::DEBUG);

				throw new \Exception($message_t);

			}

		} else {

			$result['parent'] = null;

			$result['suggestedItemTarget'] = null;