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138 lines
4.7 KiB
138 lines
4.7 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) 2004-2008 Dokeos SPRL
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Copyright (c) 2003 Ghent University (UGent)
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Copyright (c) 2001 Universite catholique de Louvain (UCL)
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Copyright (c) various contributors
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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, rue du Corbeau, 108, 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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* @author isaac flores paz
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* @param integer
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* @return void
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*/
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function exit_of_chat ($user_id) {
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$list_course=array();
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$list_course=CourseManager::get_courses_list_by_user_id($user_id);
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$group_id = intval($_SESSION['id_group']);
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$session_id = intval($_SESSION['id_session']);
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$extra_condition = '';
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if (!empty($group_id)) $extra_condition = " AND to_group_id = '$group_id'";
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else $extra_condition = api_get_session_condition($session_id);
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foreach($list_course as $courses) {
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$response=user_connected_in_chat($user_id,$courses['db_name']);
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if ($response===true) {
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$tbl_chat_connected = Database::get_course_chat_connected_table($courses['db_name']);
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$sql='DELETE FROM '.$tbl_chat_connected.' WHERE user_id='.$user_id.$extra_condition;
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Database::query($sql,__FILE__,__LINE__);
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}
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}
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}
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/**
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* @author isaac flores paz
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* @param integer the user id
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* @param string the database name
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* @return boolean
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*/
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function user_connected_in_chat ($user_id,$database_name) {
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$tbl_chat_connected = Database::get_course_chat_connected_table($database_name);
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$group_id = intval($_SESSION['id_group']);
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$session_id = intval($_SESSION['id_session']);
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$extra_condition = '';
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if (!empty($group_id)) $extra_condition = " AND to_group_id = '$group_id'";
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else $extra_condition = api_get_session_condition($session_id);
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$sql='SELECT COUNT(*) AS count FROM '.$tbl_chat_connected .' c WHERE user_id='.$user_id.$extra_condition;
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$result = Database::query($sql,__FILE__,__LINE__);
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$count = Database::fetch_array($result,'ASSOC');
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if (1==$count['count']) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* @param void
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* @return void
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*/
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function disconnect_user_of_chat($database_name='') {
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$list_info_user_in_chat = array();
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if (!empty($database_name)) {
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$list_info_user_in_chat = users_list_in_chat($database_name);
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} else {
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$list_info_user_in_chat = users_list_in_chat();
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}
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$cd_date = date('Y-m-d',time());
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$cdate_h = date('H',time());
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$cdate_m = date('i',time());
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$cdate_s = date('s',time());
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$cd_count_time_seconds=$cdate_h*3600 + $cdate_m*60 + $cdate_s;
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if (is_array($list_info_user_in_chat) && count($list_info_user_in_chat) > 0 ) {
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foreach ($list_info_user_in_chat as $list_info_user) {
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$date_db_date = date('Y-m-d',strtotime($list_info_user['last_connection']));
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$date_db_h = date('H',strtotime($list_info_user['last_connection']));
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$date_db_m = date('i',strtotime($list_info_user['last_connection']));
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$date_db_s = date('s',strtotime($list_info_user['last_connection']));
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$date_count_time_seconds=$date_db_h*3600 + $date_db_m*60 + $date_db_s;
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if ($cd_date==$date_db_date) {
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if (($cd_count_time_seconds - $date_count_time_seconds)>5) {
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$tbl_chat_connected = Database::get_course_chat_connected_table();
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if (!empty($database_name)) {
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$tbl_chat_connected = Database::get_course_chat_connected_table($database_name);
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}
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$sql='DELETE FROM '.$tbl_chat_connected.' WHERE user_id='.$list_info_user['user_id'];
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//return $sql;
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Database::query($sql,__FILE__,__LINE__);
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}
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}
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}
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}
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}
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/**
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* @param void
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* @return array user list in chat
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*/
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function users_list_in_chat ($database_name = '') {
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$list_users_in_chat=array();
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$tbl_chat_connected = Database::get_course_chat_connected_table($database_name);
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$group_id = intval($_SESSION['id_group']);
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$session_id = intval($_SESSION['id_session']);
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$extra_condition = '';
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if (!empty($group_id)) $extra_condition = " WHERE to_group_id = '$group_id'";
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else $extra_condition = api_get_session_condition($session_id,false);
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$sql='SELECT user_id,last_connection FROM '.$tbl_chat_connected.$extra_condition;
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$result=Database::query($sql,__FILE__,__LINE__);
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while ($row = Database::fetch_array($result,'ASSOC')) {
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$list_users_in_chat[]=$row;
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}
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return $list_users_in_chat;
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}
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?>
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