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<?php
/**
* ownCloud
*
* @author Bjoern Schiessle
* @copyright 2014 Bjoern Schiessle <schiessle@owncloud.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
namespace OC\Share;
class Hooks extends \OC\Share\Constants {
/**
* Function that is called after a user is deleted. Cleans up the shares of that user.
* @param array $arguments
*/
public static function post_deleteUser($arguments) {
// Delete any items shared with the deleted user
$query = \OC_DB::prepare('DELETE FROM `*PREFIX*share`'
.' WHERE `share_with` = ? AND `share_type` = ? OR `share_type` = ?');
$result = $query->execute(array($arguments['uid'], self::SHARE_TYPE_USER, self::$shareTypeGroupUserUnique));
// Delete any items the deleted user shared
$query = \OC_DB::prepare('SELECT `id` FROM `*PREFIX*share` WHERE `uid_owner` = ?');
$result = $query->execute(array($arguments['uid']));
while ($item = $result->fetchRow()) {
Helper::delete($item['id']);
}
}
/**
* Function that is called after a user is added to a group.
* TODO what does it do?
* @param array $arguments
*/
public static function post_addToGroup($arguments) {
// Find the group shares and check if the user needs a unique target
$query = \OC_DB::prepare('SELECT * FROM `*PREFIX*share` WHERE `share_type` = ? AND `share_with` = ?');
$result = $query->execute(array(self::SHARE_TYPE_GROUP, $arguments['gid']));
$query = \OC_DB::prepare('INSERT INTO `*PREFIX*share` (`item_type`, `item_source`,'
.' `item_target`, `parent`, `share_type`, `share_with`, `uid_owner`, `permissions`,'
.' `stime`, `file_source`, `file_target`) VALUES (?,?,?,?,?,?,?,?,?,?,?)');
while ($item = $result->fetchRow()) {
$sourceExists = \OC\Share\Share::getItemSharedWithBySource($item['item_type'], $item['item_source'], self::FORMAT_NONE, null, true, $arguments['uid']);
if ($sourceExists) {
$fileTarget = $sourceExists['file_target'];
$itemTarget = $sourceExists['item_target'];
} else {
$itemTarget = Helper::generateTarget($item['item_type'], $item['item_source'], self::SHARE_TYPE_USER, $arguments['uid'],
$item['uid_owner'], null, $item['parent']);
// do we also need a file target
if ($item['item_type'] === 'file' || $item['item_type'] === 'folder') {
$fileTarget = Helper::generateTarget('file', $item['file_target'], self::SHARE_TYPE_USER, $arguments['uid'],
$item['uid_owner'], null, $item['parent']);
} else {
$fileTarget = null;
}
}
// Insert an extra row for the group share if the item or file target is unique for this user
if ($itemTarget != $item['item_target'] || $fileTarget != $item['file_target']) {
$query->execute(array($item['item_type'], $item['item_source'], $itemTarget, $item['id'],
self::$shareTypeGroupUserUnique, $arguments['uid'], $item['uid_owner'], $item['permissions'],
$item['stime'], $item['file_source'], $fileTarget));
\OC_DB::insertid('*PREFIX*share');
}
}
}
/**
* Function that is called after a user is removed from a group. Shares are cleaned up.
* @param array $arguments
*/
public static function post_removeFromGroup($arguments) {
$sql = 'SELECT `id`, `share_type` FROM `*PREFIX*share`'
.' WHERE (`share_type` = ? AND `share_with` = ?) OR (`share_type` = ? AND `share_with` = ?)';
$result = \OC_DB::executeAudited($sql, array(self::SHARE_TYPE_GROUP, $arguments['gid'],
self::$shareTypeGroupUserUnique, $arguments['uid']));
while ($item = $result->fetchRow()) {
if ($item['share_type'] == self::SHARE_TYPE_GROUP) {
// Delete all reshares by this user of the group share
Helper::delete($item['id'], true, $arguments['uid']);
} else {
Helper::delete($item['id']);
}
}
}
/**
* Function that is called after a group is removed. Cleans up the shares to that group.
* @param array $arguments
*/
public static function post_deleteGroup($arguments) {
$sql = 'SELECT `id` FROM `*PREFIX*share` WHERE `share_type` = ? AND `share_with` = ?';
$result = \OC_DB::executeAudited($sql, array(self::SHARE_TYPE_GROUP, $arguments['gid']));
while ($item = $result->fetchRow()) {
Helper::delete($item['id']);
}
}
}
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