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<?php
/**
* @author Bart Visscher <bartv@thisnet.nl>
* @author Georg Ehrke <georg@owncloud.com>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Lukas Reschke <lukas@owncloud.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin McCorkell <rmccorkell@karoshi.org.uk>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
OC_Hook::connect('OC_User', 'post_deleteUser', 'OC_SubAdmin', 'post_deleteUser');
OC_Hook::connect('OC_User', 'post_deleteGroup', 'OC_SubAdmin', 'post_deleteGroup');
/**
* This class provides all methods needed for managing groups.
*
* Hooks provided:
* post_createSubAdmin($gid)
* post_deleteSubAdmin($gid)
*/
class OC_SubAdmin{
/**
* add a SubAdmin
* @param string $uid uid of the SubAdmin
* @param string $gid gid of the group
* @return boolean
*/
public static function createSubAdmin($uid, $gid) {
$stmt = OC_DB::prepare('INSERT INTO `*PREFIX*group_admin` (`gid`,`uid`) VALUES(?,?)');
$result = $stmt->execute(array($gid, $uid));
OC_Hook::emit( "OC_SubAdmin", "post_createSubAdmin", array( "gid" => $gid ));
return true;
}
/**
* delete a SubAdmin
* @param string $uid uid of the SubAdmin
* @param string $gid gid of the group
* @return boolean
*/
public static function deleteSubAdmin($uid, $gid) {
$stmt = OC_DB::prepare('DELETE FROM `*PREFIX*group_admin` WHERE `gid` = ? AND `uid` = ?');
$result = $stmt->execute(array($gid, $uid));
OC_Hook::emit( "OC_SubAdmin", "post_deleteSubAdmin", array( "gid" => $gid ));
return true;
}
/**
* get groups of a SubAdmin
* @param string $uid uid of the SubAdmin
* @return array
*/
public static function getSubAdminsGroups($uid) {
$stmt = OC_DB::prepare('SELECT `gid` FROM `*PREFIX*group_admin` WHERE `uid` = ?');
$result = $stmt->execute(array($uid));
$gids = array();
while($row = $result->fetchRow()) {
$gids[] = $row['gid'];
}
return $gids;
}
/**
* get SubAdmins of a group
* @param string $gid gid of the group
* @return array
*/
public static function getGroupsSubAdmins($gid) {
$stmt = OC_DB::prepare('SELECT `uid` FROM `*PREFIX*group_admin` WHERE `gid` = ?');
$result = $stmt->execute(array($gid));
$uids = array();
while($row = $result->fetchRow()) {
$uids[] = $row['uid'];
}
return $uids;
}
/**
* get all SubAdmins
* @return array
*/
public static function getAllSubAdmins() {
$stmt = OC_DB::prepare('SELECT * FROM `*PREFIX*group_admin`');
$result = $stmt->execute();
$subadmins = array();
while($row = $result->fetchRow()) {
$subadmins[] = $row;
}
return $subadmins;
}
/**
* checks if a user is a SubAdmin of a group
* @param string $uid uid of the subadmin
* @param string $gid gid of the group
* @return bool
*/
public static function isSubAdminofGroup($uid, $gid) {
$stmt = OC_DB::prepare('SELECT COUNT(*) AS `count` FROM `*PREFIX*group_admin` WHERE `uid` = ? AND `gid` = ?');
$result = $stmt->execute(array($uid, $gid));
$result = $result->fetchRow();
if($result['count'] >= 1) {
return true;
}
return false;
}
/**
* checks if a user is a SubAdmin
* @param string $uid uid of the subadmin
* @return bool
*/
public static function isSubAdmin($uid) {
// Check if the user is already an admin
if(OC_Group::inGroup($uid, 'admin' )) {
return true;
}
$stmt = OC_DB::prepare('SELECT COUNT(*) AS `count` FROM `*PREFIX*group_admin` WHERE `uid` = ?');
$result = $stmt->execute(array($uid));
$result = $result->fetchRow();
if($result['count'] > 0) {
return true;
}
return false;
}
/**
* checks if a user is a accessible by a subadmin
* @param string $subadmin uid of the subadmin
* @param string $user uid of the user
* @return bool
*/
public static function isUserAccessible($subadmin, $user) {
if(!self::isSubAdmin($subadmin)) {
return false;
}
if(OC_User::isAdminUser($user)) {
return false;
}
$accessiblegroups = self::getSubAdminsGroups($subadmin);
foreach($accessiblegroups as $accessiblegroup) {
if(OC_Group::inGroup($user, $accessiblegroup)) {
return true;
}
}
return false;
}
/*
* alias for self::isSubAdminofGroup()
*/
public static function isGroupAccessible($subadmin, $group) {
return self::isSubAdminofGroup($subadmin, $group);
}
/**
* delete all SubAdmins by uid
* @param array $parameters
* @return boolean
*/
public static function post_deleteUser($parameters) {
$stmt = OC_DB::prepare('DELETE FROM `*PREFIX*group_admin` WHERE `uid` = ?');
$result = $stmt->execute(array($parameters['uid']));
return true;
}
/**
* delete all SubAdmins by gid
* @param array $parameters
* @return boolean
*/
public static function post_deleteGroup($parameters) {
$stmt = OC_DB::prepare('DELETE FROM `*PREFIX*group_admin` WHERE `gid` = ?');
$result = $stmt->execute(array($parameters['gid']));
return true;
}
}
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