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 $this->username;
        } elseif ($_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 $DIC;

        $username   = htmlspecialchars(trim($username));
        $usernames  = array();
        $uniqueName = $username;

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

        while (($row = $DIC->database()->fetchAssoc($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;
    }
}