class.ilChatroomUser.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once 'Services/User/classes/class.ilObjUser.php';

class ilChatroomUser
{
        private $user;

        private $username;

        private $room;

        public function __construct(ilObjUser $user, ilChatroom $chatroom)
        {
                $this->user = $user;
                $this->room = $chatroom;
        }

        public function getUserId()
        {
                $user_id = $this->user->getId();

                if($this->user->isAnonymous())
                {
                        if(isset($_SESSION['chat'][$this->room->getRoomId()]['user_id']))
                        {
                                return $_SESSION['chat'][$this->room->getRoomId()]['user_id'];
                        }
                        else
                        {
                                $user_id                                               = mt_rand(-99999, -20);
                                $_SESSION['chat'][$this->room->getRoomId()]['user_id'] = $user_id;
                                return $user_id;
                        }
                }
                else
                {
                        return $user_id;
                }
        }

        public function getUsername()
        {
                if($this->username)
                {
                        return $this->username;
                }
                else if($_SESSION['chat'][$this->room->getRoomId()]['username'])
                {
                        return $_SESSION['chat'][$this->room->getRoomId()]['username'];
                }
                else
                {
                        return $this->user->getLogin();
                }
        }

        public function setUsername($username)
        {
                $this->username                                         = htmlspecialchars($username);
                $_SESSION['chat'][$this->room->getRoomId()]['username'] = $this->username;
        }

        public function getChatNameSuggestions()
        {
                $options = array();

                if($this->user->isAnonymous())
                {
                        $options['anonymousName'] = $this->buildAnonymousName();
                }
                else
                {
                        $options['fullname']  = $this->buildFullname();
                        $options['shortname'] = $this->buildShortname();
                        $options['login']     = $this->buildLogin();
                }

                return $options;
        }

        public function buildAnonymousName()
        {
                $anonymous_name = str_replace(
                        '#', mt_rand(0, 10000), $this->room->getSetting('autogen_usernames')
                );

                return $anonymous_name;
        }

        public function buildFullname()
        {
                $tmp = $this->user->getPref('public_profile');
                $this->user->setPref('public_profile', 'y');
                $pn = $this->user->getPublicName();
                $this->user->setPref('public_profile', $tmp);
                return $pn;
        }

        public function buildShortname()
        {
                $firstname = $this->user->getFirstname();

                return $firstname{0} . '. ' . $this->user->getLastname();
        }

        public function buildLogin()
        {
                return $this->user->getLogin();
        }

        public function buildUniqueUsername($username)
        {
                global $ilDB;
                $username   = htmlspecialchars(trim($username));
                $usernames  = array();
                $uniqueName = $username;

                $rset = $ilDB->query('SELECT * FROM chatroom_users WHERE '
                        . $ilDB->like('userdata', 'text', '%"login":"' . $username . '%')
                        . ' AND room_id = ' . $ilDB->quote($this->room->getRoomId(), 'integer')
                );

                while(($row = $ilDB->fetchAssoc($rset)))
                {
                        $json        = json_decode($row['userdata'], true);
                        $usernames[] = $json['login'];
                }

                for($index = 1; $index <= \count($usernames); $index++)
                {
                        if(in_array($uniqueName, $usernames))
                        {
                                $uniqueName = sprintf('%s_%d', $username, $index);
                        }
                }

                return $uniqueName;
        }
}