/**
* Set expiration date for a share
* @param string $itemType
* @param string $itemSource
* @param string $date expiration date
* @param int $shareTime timestamp from when the file was shared
* @return boolean
* @throws \Exception when the expire date is not set, in the past or further in the future then the enforced date
*/
public static function setExpirationDate($itemType, $itemSource, $date, $shareTime = null)
{
$user = \OC_User::getUser();
$l = \OC::$server->getL10N('lib');
if ($date == '') {
if (\OCP\Util::isDefaultExpireDateEnforced()) {
$warning = 'Cannot clear expiration date. Shares are required to have an expiration date.';
$warning_t = $l->t('Cannot clear expiration date. Shares are required to have an expiration date.');
\OCP\Util::writeLog('OCP\\Share', $warning, \OCP\Util::WARN);
throw new \Exception($warning_t);
} else {
$date = null;
}
} else {
$date = self::validateExpireDate($date, $shareTime, $itemType, $itemSource);
}
$query = \OC_DB::prepare('UPDATE `*PREFIX*share` SET `expiration` = ? WHERE `item_type` = ? AND `item_source` = ? AND `uid_owner` = ? AND `share_type` = ?');
$query->bindValue(1, $date, 'datetime');
$query->bindValue(2, $itemType);
$query->bindValue(3, $itemSource);
$query->bindValue(4, $user);
$query->bindValue(5, \OCP\Share::SHARE_TYPE_LINK);
$query->execute();
\OC_Hook::emit('OCP\\Share', 'post_set_expiration_date', array('itemType' => $itemType, 'itemSource' => $itemSource, 'date' => $date, 'uidOwner' => $user));
return true;
}
/**
* validate expire date if it meets all constraints
*
* @param string $expireDate well formate date string, e.g. "DD-MM-YYYY"
* @param string $shareTime timestamp when the file was shared
* @param string $itemType
* @param string $itemSource
* @return DateTime validated date
* @throws \Exception
*/
private static function validateExpireDate($expireDate, $shareTime, $itemType, $itemSource)
{
$l = \OC_L10N::get('lib');
$date = new \DateTime($expireDate);
$today = new \DateTime('now');
// if the user doesn't provide a share time we need to get it from the database
// fall-back mode to keep API stable, because the $shareTime parameter was added later
$defaultExpireDateEnforced = \OCP\Util::isDefaultExpireDateEnforced();
if ($defaultExpireDateEnforced && $shareTime === null) {
$items = self::getItemShared($itemType, $itemSource);
$firstItem = reset($items);
$shareTime = (int) $firstItem['stime'];
}
if ($defaultExpireDateEnforced) {
// initialize max date with share time
$maxDate = new \DateTime();
$maxDate->setTimestamp($shareTime);
$maxDays = \OCP\Config::getAppValue('core', 'shareapi_expire_after_n_days', '7');
$maxDate->add(new \DateInterval('P' . $maxDays . 'D'));
if ($date > $maxDate) {
$warning = 'Can not set expire date. Shares can not expire later then ' . $maxDays . ' after they where shared';
$warning_t = $l->t('Can not set expire date. Shares can not expire later then %s after they where shared', array($maxDays));
\OCP\Util::writeLog('OCP\\Share', $warning, \OCP\Util::WARN);
throw new \Exception($warning_t);
}
}
if ($date < $today) {
$message = 'Can not set expire date. Expire date is in the past';
$message_t = $l->t('Can not set expire date. Expire date is in the past');
\OCP\Util::writeLog('OCP\\Share', $message, \OCP\Util::WARN);
throw new \Exception($message_t);
}
return $date;
}
