File Source for online

<?php // $Id: online_message.php 13296 2007-09-27 02:19:40Z yannoo $
/*
==============================================================================
Dokeos - elearning and course management software
Copyright (c) 2004 Dokeos S.A.
Copyright (c) 2003 Ghent University (UGent)
Copyright (c) 2001 Universite catholique de Louvain (UCL)
Copyright (c) Olivier Brouckaert
For a full list of contributors, see "credits.txt".
The full license can be read in "license.txt".
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See the GNU General Public License for more details.
Contact: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
==============================================================================
*/
/**
==============================================================================
* Allows to type the messages that will be displayed on online_chat.php
*
* @author Olivier Brouckaert
* @package dokeos.online
==============================================================================
*/
define('FRAME','message');
// name of the language file that needs to be included
$language_file='chat';
include('../inc/global.inc.php');
$this_section=SECTION_COURSES;
/*
-----------------------------------------------------------
Constants and variables
-----------------------------------------------------------
*/
$sent = $_REQUEST['sent'];
$question = $_REQUEST['question'];
$tbl_user = Database::get_main_table(TABLE_MAIN_USER);
$query="SELECT username FROM $tbl_user WHERE user_id='".$_user['user_id']."'";
$result=api_sql_query($query,__FILE__,__LINE__);
list($pseudoUser)=mysql_fetch_row($result);
$isAllowed=(empty($pseudoUser) || !$_cid)?false:true;
$isMaster=$is_courseAdmin?true:false;
if(!$isAllowed)
{
exit();
}
$timeNow=date('H:i');
$dateNow=date('Y-m-d');
$documentPath=api_get_path(SYS_COURSE_PATH).$_course['path'].'/document/';
$onlinePath=$documentPath.'online_files/';
if(!is_dir($onlinePath))
{
if(is_file($onlinePath))
{
@unlink($onlinePath);
}
@mkdir($onlinePath,0777);
@chmod($onlinePath,0777);
}
$chat_size=0;
if($sent)
{
$message=trim(htmlspecialchars(stripslashes($_POST['message']),ENT_QUOTES,$charset));
if(!empty($message))
{
$message=make_clickable($message);
if($question)
{
$message='<span class="question"><b>'.get_lang('Question').' :</b> '.$message.'</span>';
}
$fp=fopen($onlinePath.'messages-'.$dateNow.'.log','a');
if($isMaster)
{
fputs($fp,"[$timeNow] <span class=\"master\"><b>$pseudoUser</b></span> : $message\n");
}
else
{
fputs($fp,"[$timeNow] <b>$pseudoUser</b> : $message\n");
}
fclose($fp);
$chat_size=filesize($onlinePath.'messages-'.$dateNow.'.log');
}
}
include('header_frame.inc.php');
?>
<form name="formMessage" method="post" action="<?php echo api_get_self(); ?>" onsubmit="javascript:if(document.formMessage.message.value == '') { alert('<?php echo addslashes(htmlentities(get_lang('TypeMessage'),ENT_QUOTES,$charset)); ?>'); document.formMessage.message.focus(); return false; }" autocomplete="off">
<input type="hidden" name="sent" value="1">
<table border="0" cellpadding="5" cellspacing="0" width="100%">
<tr>
<td width="90%"><input type="text" name="message" size="50" value="" style="width: 100%;"></td>
<td width="9%" nowrap="nowrap"><?php echo get_lang('Question'); ?> <input type="checkbox" name="question" value="1" style="vertical-align: middle;" onclick="javascript:if(this.checked == true && !confirm('<?php echo addslashes(htmlentities(get_lang('OnlyCheckForImportantQuestion'),ENT_QUOTES,$charset)); ?>')) this.checked=false; document.formMessage.message.focus();"></td>
<td width="1%"><input type="submit" value="OK" style="width: 30px;"></td>
</tr>
</table>
</form>
<?php
include('footer_frame.inc.php');
?>

Source for file online_message.php