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<?php |
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/** |
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* @author Björn Schießle <[email protected]> |
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* @author Morris Jobke <[email protected]> |
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* @author Robin McCorkell <[email protected]> |
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* @author Roeland Jago Douma <[email protected]> |
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* |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* @license AGPL-3.0 |
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* |
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* This code is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License, version 3, |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace OC\Share; |
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class Hooks extends \OC\Share\Constants { |
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/** |
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* remember which targets need to be updated in the post addToGroup Hook |
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* @var array |
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*/ |
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private static $updateTargets = array(); |
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/** |
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* Function that is called before a user is added to a group. |
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* check if we need to create a unique target for the user |
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* @param array $arguments |
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*/ |
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public static function pre_addToGroup($arguments) { |
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$currentUser = \OC::$server->getUserSession()->getUser(); |
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$currentUserID = is_null($currentUser) ? '' : $currentUser->getUID(); |
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// setup filesystem for added user if it isn't the current user |
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if($currentUserID !== $arguments['uid']) { |
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\OC_Util::tearDownFS(); |
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\OC_Util::setupFS($arguments['uid']); |
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} |
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/** @var \OC\DB\Connection $db */ |
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$db = \OC::$server->getDatabaseConnection(); |
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$insert = $db->createQueryBuilder(); |
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$select = $db->createQueryBuilder(); |
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// Find the group shares and check if the user needs a unique target |
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$select->select('*') |
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->from('`*PREFIX*share`') |
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->where($select->expr()->andX( |
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$select->expr()->eq('`share_type`', ':shareType'), |
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$select->expr()->eq('`share_with`', ':shareWith') |
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)) |
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->setParameter('shareType', self::SHARE_TYPE_GROUP) |
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->setParameter('shareWith', $arguments['gid']); |
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$result = $select->execute(); |
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while ($item = $result->fetch()) { |
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$itemTarget = Helper::generateTarget( |
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$item['item_type'], |
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$item['item_source'], |
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self::SHARE_TYPE_USER, |
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$arguments['uid'], |
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$item['uid_owner'], |
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null, |
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$item['parent'] |
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); |
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if ($item['item_type'] === 'file' || $item['item_type'] === 'folder') { |
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$fileTarget = Helper::generateTarget( |
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$item['item_type'], |
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$item['file_target'], |
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self::SHARE_TYPE_USER, |
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$arguments['uid'], |
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$item['uid_owner'], |
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null, |
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$item['parent'] |
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); |
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} else { |
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$fileTarget = null; |
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} |
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// Insert an extra row for the group share if the item or file target is unique for this user |
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if ( |
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($fileTarget === null && $itemTarget != $item['item_target']) |
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|| ($fileTarget !== null && $fileTarget !== $item['file_target']) |
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) { |
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self::$updateTargets[$arguments['gid']][] = [ |
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'`item_type`' => $insert->expr()->literal($item['item_type']), |
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'`item_source`' => $insert->expr()->literal($item['item_source']), |
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'`item_target`' => $insert->expr()->literal($itemTarget), |
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'`file_target`' => $insert->expr()->literal($fileTarget), |
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'`parent`' => $insert->expr()->literal($item['id']), |
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'`share_type`' => $insert->expr()->literal(self::$shareTypeGroupUserUnique), |
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'`share_with`' => $insert->expr()->literal($arguments['uid']), |
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'`uid_owner`' => $insert->expr()->literal($item['uid_owner']), |
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'`permissions`' => $insert->expr()->literal($item['permissions']), |
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'`stime`' => $insert->expr()->literal($item['stime']), |
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'`file_source`' => $insert->expr()->literal($item['file_source']), |
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]; |
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} |
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} |
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// re-setup old filesystem state |
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if($currentUserID !== $arguments['uid']) { |
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\OC_Util::tearDownFS(); |
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if($currentUserID !== '') { |
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\OC_Util::setupFS($currentUserID); |
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} |
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} |
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} |
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/** |
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* Function that is called after a user is added to a group. |
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* add unique target for the user if needed |
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* @param array $arguments |
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*/ |
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public static function post_addToGroup($arguments) { |
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/** @var \OC\DB\Connection $db */ |
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$db = \OC::$server->getDatabaseConnection(); |
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$insert = $db->createQueryBuilder(); |
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$insert->insert('`*PREFIX*share`'); |
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if (isset(self::$updateTargets[$arguments['gid']])) { |
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foreach (self::$updateTargets[$arguments['gid']] as $newTarget) { |
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$insert->values($newTarget); |
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$insert->execute(); |
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} |
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unset(self::$updateTargets[$arguments['gid']]); |
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} |
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} |
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/** |
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* Function that is called after a user is removed from a group. Shares are cleaned up. |
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* @param array $arguments |
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*/ |
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public static function post_removeFromGroup($arguments) { |
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$sql = 'SELECT `id`, `share_type` FROM `*PREFIX*share`' |
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.' WHERE (`share_type` = ? AND `share_with` = ?) OR (`share_type` = ? AND `share_with` = ?)'; |
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$result = \OC_DB::executeAudited($sql, array(self::SHARE_TYPE_GROUP, $arguments['gid'], |
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self::$shareTypeGroupUserUnique, $arguments['uid'])); |
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while ($item = $result->fetchRow()) { |
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if ($item['share_type'] == self::SHARE_TYPE_GROUP) { |
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// Delete all reshares by this user of the group share |
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Helper::delete($item['id'], true, $arguments['uid']); |
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} else { |
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Helper::delete($item['id']); |
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} |
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} |
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} |
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/** |
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* Function that is called after a group is removed. Cleans up the shares to that group. |
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* @param array $arguments |
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*/ |
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public static function post_deleteGroup($arguments) { |
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$sql = 'SELECT `id` FROM `*PREFIX*share` WHERE `share_type` = ? AND `share_with` = ?'; |
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$result = \OC_DB::executeAudited($sql, array(self::SHARE_TYPE_GROUP, $arguments['gid'])); |
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while ($item = $result->fetchRow()) { |
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Helper::delete($item['id']); |
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} |
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} |
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} |
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owncloud /
core
