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291 lines
8.0 KiB
291 lines
8.0 KiB
<?php
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004-2005 Dokeos S.A.
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Copyright (c) Istvan Mandak
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact address: Dokeos, 44 rue des palais, B-1030 Brussels, Belgium
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Mail: info@dokeos.com
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==============================================================================
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*/
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/**
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==============================================================================
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* Code library for showing Who is online
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*
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* @author Istvan Mandak, principal author
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* @author Denes Nagy, principal author
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* @author Bart Mollet
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* @author Roan Embrechts, cleaning and bugfixing
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* @package dokeos.whoisonline
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==============================================================================
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*/
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/**
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* Enter description here...
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*
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* @param unknown_type $uid
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* @param unknown_type $statistics_database
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*
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* @todo the second parameter is of no use.
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*/
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function LoginCheck($uid,$statistics_database)
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{
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global $_course;
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$online_table = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ONLINE);
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if ($uid!="")
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{
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LoginDelete($uid,$statistics_database);
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$login_ip = $_SERVER['REMOTE_ADDR'];
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$reallyNow = time();
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$login_date = date("Y-m-d H:i:s",$reallyNow);
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// if the $_course array exists this means we are in a course and we have to store this in the who's online table also
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// to have the x users in this course feature working
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if ($_course)
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{
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$query = "INSERT INTO ".$online_table ." (login_id,login_user_id,login_date,login_ip, course) VALUES ($uid,$uid,'$login_date','$login_ip', '".$_course['id']."')";
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}
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else
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{
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$query = "INSERT INTO ".$online_table ." (login_id,login_user_id,login_date,login_ip) VALUES ($uid,$uid,'$login_date','$login_ip')";
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}
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@api_sql_query($query,__FILE__,__LINE__);
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}
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}
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/**
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* Enter description here...
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*
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* @param unknown_type $uid
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*
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* @todo the name is not very clear. I would expect that it deletes a login from the tracking info or even it deletes a user.
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*/
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function LoginDelete($user_id)
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{
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$online_table = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ONLINE);
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$query = "DELETE FROM ".$online_table ." WHERE login_user_id = '".mysql_real_escape_string($user_id)."'";
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@api_sql_query($query,__FILE__,__LINE__);
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}
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/**
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* @todo remove parameter $statistics_database which is no longer necessary
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*/
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function WhoIsOnline($uid,$statistics_database,$valid)
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{
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$track_online_table = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ONLINE);
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$query = "SELECT login_user_id,login_date FROM ".$track_online_table ." WHERE DATE_ADD(login_date,INTERVAL $valid MINUTE) >= NOW() ";
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$result = @api_sql_query($query,__FILE__,__LINE__);
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if (count($result)>0)
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{
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$rtime = time();
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$rdate = date("Y-m-d H:i:s",$rtime);
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$validtime = mktime(date("H"),date("i")-$valid,date("s"),date("m"),date("d"),date("Y"));
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$rarray = array();
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while(list($login_user_id,$login_date)= mysql_fetch_row($result))
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{
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$barray = array();
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array_push($barray,$login_user_id);
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array_push($barray,$login_date);
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// YYYY-MM-DD HH:MM:SS, db date format
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$hour = substr($login_date,11,2);
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$minute = substr($login_date,14,2);
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$secund = substr($login_date,17,2);
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$month = substr($login_date,5,2);
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$day = substr($login_date,8,2);
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$year = substr($login_date,0,4);
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// db timestamp
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$dbtime = mktime($hour,$minute,$secund,$month,$day,$year);
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if ($dbtime>$validtime)
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{
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array_push($rarray,$barray);
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}
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//echo $dbtime.":".$rtime.">".$validtime."<BR>";
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//echo "$login_user_id.":".$login_date.";";
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}
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return $rarray;
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}
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else
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{
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return false;
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}
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}
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function GetFullUserName($uid)
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{
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$user_table = Database::get_main_table(TABLE_MAIN_USER);
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$safe_uid = Database::escape_string($uid);
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$query = "SELECT firstname,lastname FROM ".$user_table." WHERE user_id='$safe_uid'";
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$result = @api_sql_query($query,__FILE__,__LINE__);
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if (count($result)>0)
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{
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$str = "";
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while(list($firstname,$lastname)= mysql_fetch_array($result))
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{
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$str = $lastname." ".$firstname;
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return $str;
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}
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}
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}
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function GetURL($path)
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{
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$str = "";
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$url = explode('/',$path);
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for($i=0;$i < sizeof($url)-2; $i++)
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{
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if($i==sizeof($url)-3)
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{$str = $str.$url[$i]; }
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else
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{
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$str = $str.$url[$i]."/";
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}
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}
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return $str;
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}
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// picture?
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function IsValidUser($uid)
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{
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$user_table = Database::get_main_table(TABLE_MAIN_USER);
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$query = "SELECT `picture_uri` FROM ".$user_table." WHERE `user_id`='$uid'";
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$result = @api_sql_query($query,__FILE__,__LINE__);
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if (count($result)>0)
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{
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while(list($picture_uri)= mysql_fetch_array($result))
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{
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if (count($picture_uri)>0)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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}
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else
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{
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return false;
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}
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}
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function ClearURL($path)
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{
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$url = explode('?id=',$path);
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return $url[0];
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}
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function chatcall() {
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global $_user, $_cid;
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if (!$_user['user_id'])
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{
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return (false);
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}
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$track_user_table = Database::get_main_table(TABLE_MAIN_USER);
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$sql="select chatcall_user_id, chatcall_date from $track_user_table where ( user_id = '".$_user['user_id']."' )";
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$result=api_sql_query($sql,__FILE__,__LINE__);
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$row=mysql_fetch_array($result);
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$login_date=$row['chatcall_date'];
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$hour = substr($login_date,11,2);
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$minute = substr($login_date,14,2);
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$secund = substr($login_date,17,2);
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$month = substr($login_date,5,2);
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$day = substr($login_date,8,2);
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$year = substr($login_date,0,4);
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$calltime = mktime($hour,$minute,$secund,$month,$day,$year);
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$time = time();
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$time = date("Y-m-d H:i:s", $time);
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$minute_passed=5; //within this limit, the chat call request is valid
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$limittime = mktime(date("H"),date("i")-$minute_passed,date("s"),date("m"),date("d"),date("Y"));
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if (($row['chatcall_user_id']) and ($calltime>$limittime)) {
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$webpath=api_get_path(WEB_CODE_PATH);
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$message=get_lang('YouWereCalled').' : '.GetFullUserName($row['chatcall_user_id'],'').'<br>'.get_lang('DoYouAccept')
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."<p>"
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."<a href=\"".$webpath."chat/chat.php?cidReq=".$_cid."&origin=whoisonlinejoin\">"
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. get_lang("Yes")
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."</a>"
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." | "
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."<a href=\"".api_get_path('WEB_PATH')."webchatdeny.php\">"
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. get_lang("No")
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."</a>"
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."</p>";
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return($message);
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}
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else
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{
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return(false);
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}
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}
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/**
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* Returns a list (array) of users who are online and in this course.
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*/
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function who_is_online_in_this_course($uid, $valid, $coursecode)
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{
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$track_online_table = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ONLINE);
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$coursecode = Database::escape_string($coursecode);
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$query = "SELECT login_user_id,login_date FROM ".$track_online_table ." WHERE course='".$coursecode."' AND DATE_ADD(login_date,INTERVAL $valid MINUTE) >= NOW() ";
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$result = api_sql_query($query,__FILE__,__LINE__);
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if (count($result)>0)
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{
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$rtime = time();
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$rdate = date("Y-m-d H:i:s",$rtime);
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$validtime = mktime(date("H"),date("i")-$valid,date("s"),date("m"),date("d"),date("Y"));
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$rarray = array();
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while(list($login_user_id,$login_date)= mysql_fetch_row($result))
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{
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$barray = array();
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array_push($barray,$login_user_id);
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array_push($barray,$login_date);
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// YYYY-MM-DD HH:MM:SS, db date format
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$hour = substr($login_date,11,2);
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$minute = substr($login_date,14,2);
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$secund = substr($login_date,17,2);
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$month = substr($login_date,5,2);
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$day = substr($login_date,8,2);
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$year = substr($login_date,0,4);
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// db timestamp
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$dbtime = mktime($hour,$minute,$secund,$month,$day,$year);
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if ($dbtime >= $validtime)
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{
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array_push($rarray,$barray);
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}
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//echo $dbtime.":".$rtime.">".$validtime."<BR>";
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//echo "$login_user_id.":".$login_date.";";
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}
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return $rarray;
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}
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else
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{
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return false;
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}
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}
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?>
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