class.ilChatroomServerHandler.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once 'Modules/Chatroom/classes/class.ilChatroom.php';

class ilChatroomServerHandler
{

        public function __construct()
        {
                $this->handleCommand( $_REQUEST['task'] );
                exit;
        }

        public function getConnector()
        {
                require_once 'Modules/Chatroom/classes/class.ilChatroomServerConnector.php';
                require_once 'Modules/Chatroom/classes/class.ilChatroomServerSettings.php';
                require_once 'Modules/Chatroom/classes/class.ilChatroomAdmin.php';

                //$settings = new ilChatroomServerSettings();
                $settings = ilChatroomAdmin::getDefaultConfiguration()->getServerSettings();
                $connector = new ilChatroomServerConnector( $settings );

                return $connector;
        }

        private function handleCommand($task)
        {
                switch($task)
                {
                        case 'disconnectedUsers':
                                if (isset($_REQUEST['scope'])) {
                                        $this->disconnectedUsers( $_REQUEST['scope'] );
                                }
                                $this->cleanupPrivateRooms();
                                break;
                        case 'serverStarted':
                                $this->serverStarted();
                                break;
                }
        }

        public function cleanupPrivateRooms() {
                $deletableRooms = ilChatroom::findDeletablePrivateRooms();

                $connector = $this->getConnector();

                foreach($deletableRooms as $deletableRoom) {

                        $room = ilChatroom::byObjectId($deletableRoom['object_id']);

                        $params['user'] =  -1; //$chat_user->getUserId();
                        $room->closePrivateRoom($deletableRoom['proom_id'], $chat_user, $settings);
                        $query = http_build_query( $params );

                        $message = json_encode( array(
                                'type'          => 'private_room_deleted',
                                'timestamp' => date( 'c' ),
                                'public' => 1,
                                'id' => $deletableRoom['proom_id'],
                                'proom_id' => $deletableRoom['proom_id'],
                                'message' => array(
                                    'message'=> 'room deleted',
                                    'public' => '1',
                                    'user' => 'system'
                                    )
                                    ) );

                                    $result = $connector->sendMessage( $room->getRoomId(), $message, array('public' => 1) );

                }
        }

        private function disconnectedUsers($usersByScope)
        {
                require_once 'Modules/Chatroom/classes/class.ilChatroom.php';

                foreach( $usersByScope as $scope => $users )
                {
                        $users = explode( ',', $users );
                        $chatroom = ilChatroom::byRoomId( $scope );

                        if( $chatroom instanceof ilChatroom && is_array( $users ) )
                        {
                                $users = array_filter( $users );
                                $userDetails = $this->getUserInformation($users);
                                $message = json_encode( array(
                                                'type'          => 'disconnected',
                                                'users'     => $userDetails,
                                                'timestamp' => date( 'c' )
                                ) );

                                $chatroom->disconnectUsers( $users );
                                
                                $this->getConnector()->sendMessage( $chatroom->getRoomId(), $message );

                                if( true || $chatroom->getSetting( 'enable_history' ) ) {
                                        $messageObject = array(
                                                'type'          => 'disconnected',
                                                'users'         => $userDetails,
                                                'timestamp' => date( 'c' )
                                        );

                                        $chatroom->addHistoryEntry( $messageObject );
                                }
                        }
                }
        }

        private function serverStarted()
        {
                require_once 'Modules/Chatroom/classes/class.ilChatroom.php';

                ilChatroom::disconnectAllUsersFromAllRooms();
        }

        private function getUserInformation($user_ids) {
            global $ilDB;
            
            $rset = $ilDB->query('SELECT userdata FROM chatroom_users WHERE ' . $ilDB->in('user_id', $user_ids, false, 'integer'));
            $users = array();
            while($row = $ilDB->fetchAssoc($rset)) {
                $users[] = json_decode($row['userdata']);
            }
            return $users;
        }
}

?>