<?php // $Id: chat_message.php,v 1.11 2005/05/18 13:58:20 bvanderkimpen Exp $
/*
==============================================================================
	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 chat_chat.php
*
*	@author Olivier Brouckaert
*	@package dokeos.chat
==============================================================================
*/

/*
==============================================================================
		INIT SECTION
==============================================================================
*/

define('FRAME','message');

$language_file = array ('chat');

require('../inc/global.inc.php');
api_protect_course_script();
$course=api_get_course_id();

// if we have the session set up 
if (!empty($course))
{
	include_once(api_get_path(LIBRARY_PATH).'document.lib.php');
	include_once(api_get_path(LIBRARY_PATH).'text.lib.php');
	include_once (api_get_path(LIBRARY_PATH).'fileUpload.lib.php');
	
	/*
	-----------------------------------------------------------
		Constants and variables
	-----------------------------------------------------------
	*/
	$tbl_user	= Database::get_main_table(TABLE_MAIN_USER);
	$sent = $_REQUEST['sent'];
	
	/*
	==============================================================================
			MAIN CODE
	==============================================================================
	*/
	$query="SELECT lastname, firstname, 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;
	
	$firstname=mysql_result($result,0,'firstname');
	$lastname=mysql_result($result,0,'lastname');
	
	$dateNow=date('Y-m-d');
	
	$documentPath=api_get_path(SYS_COURSE_PATH).$_course['path'].'/document/';
	$chatPath=$documentPath.'chat_files/';
	$TABLEITEMPROPERTY= Database::get_course_table(TABLE_ITEM_PROPERTY);
	
	if(!is_dir($chatPath))
	{
		if(is_file($chatPath))
		{
			@unlink($chatPath);
		}
	
		$perm = api_get_setting('permissions_for_new_directories');
		$perm = octdec(!empty($perm)?$perm:'0770');
		@mkdir($chatPath,$perm);
		@chmod($chatPath,$perm);
	
		$doc_id=add_document($_course,'/chat_files','folder',0,'chat_files');
	
		api_sql_query("INSERT INTO ".$TABLEITEMPROPERTY . " (tool,insert_user_id,insert_date,lastedit_date,ref,lastedit_type,lastedit_user_id,to_group_id,to_user_id,visibility) VALUES ('document',1,NOW(),NOW(),$doc_id,'DocumentAdded',1,0,NULL,0)");
		
	}

	
	include('header_frame.inc.php');
	
	$chat_size=0;
	
	if($sent)
	{
		$message=trim(htmlspecialchars(stripslashes($_POST['message']),ENT_QUOTES,$charset));
		
		if(!empty($message))
		{
			$message=make_clickable($message);
	
			if(!file_exists($chatPath.'messages-'.$dateNow.'.log.html'))
			{
				$doc_id=add_document($_course,'/chat_files/messages-'.$dateNow.'.log.html','file',0,'messages-'.$dateNow.'.log.html');
	
				api_item_property_update($_course, TOOL_DOCUMENT, $doc_id, 'DocumentAdded', $_user['user_id']);
				item_property_update_on_folder($_course,'/chat_files', $_user['user_id']);
			}
			else
			{
				$doc_id = DocumentManager::get_document_id($_course,'/chat_files/messages-'.$dateNow.'.log.html');
			}
	
			$fp=fopen($chatPath.'messages-'.$dateNow.'.log.html','a');
	
			if($isMaster)
			{
				fputs($fp,'<span id="chat_login_name"><b>'.$firstname.' '.$lastname.'</b></span> : '.$message.'<br>'."\n");	 		
				
			}
			else
			{
				fputs($fp,"<b>$firstname $lastname</b> : $message<br>\n");
			}
	
			fclose($fp);
	
			$chat_size=filesize($chatPath.'messages-'.$dateNow.'.log.html');
	
			update_existing_document($_course, $doc_id,$chat_size);
			item_property_update_on_folder($_course,'/chat_files', $_user['user_id']);
		}
	}
	?>
	<form name="formMessage" method="post" action="<?php echo api_get_self(); ?>" onsubmit="javascript:if(document.formMessage.message.value == '') { alert('<?php echo addslashes(htmlentities(get_lang('TypeMessage'),ENT_QUOTES,$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="520" valign="middle">
	  	<textarea name="message" style="width: 520px; height: 35px" onkeydown="send_message(event);"></textarea>
	  </td>
	  <td>
	  	<input type="submit" value="<?php echo get_lang("Send"); ?>" class="background_submit">
	  </td>
	</tr>
	</table>
	</form>
	<?php
}
include('footer_frame.inc.php');
?>