chamilo-lms2/main/chat/chat_chat.php

<?php
/* For licensing terms, see /license.txt */

/**
 *    Chat frame that shows the message list
 *
 * @author Olivier Brouckaert
 * @package chamilo.chat
 */
/**
 * Code
 */

define('FRAME', 'chat');

$language_file = array('chat');
require_once '../inc/global.inc.php';

$course = $_GET['cidReq'];
$session_id = intval($_SESSION['id_session']);
$group_id = intval($_SESSION['_gid']);

// if we have the session set up
if (!empty($course)) {
    $reset = (bool)$_GET['reset'];
    $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
    $query = "SELECT username FROM $tbl_user WHERE user_id='".intval($_user['user_id'])."'";
    $result = Database::query($query);

    list($pseudo_user) = Database::fetch_row($result);

    $isAllowed = !(empty($pseudo_user) || !$_cid);
    $isMaster = (bool)api_is_course_admin();

    $date_now = date('Y-m-d');
    $basepath_chat = '';
    $document_path = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document';
    if (!empty($group_id)) {
        $group_info = GroupManager :: get_group_properties($group_id);
        $basepath_chat = $group_info['directory'].'/chat_files';
    } else {
        $basepath_chat = '/chat_files';
    }
    $chat_path = $document_path.$basepath_chat.'/';

    $TABLEITEMPROPERTY = Database::get_course_table(TABLE_ITEM_PROPERTY);

    $course_id = api_get_course_int_id();

    if (!is_dir($chat_path)) {
        if (is_file($chat_path)) {
            @unlink($chat_path);
        }

        if (!api_is_anonymous()) {
            @mkdir($chat_path, api_get_permissions_for_new_directories());
            // Save chat files document for group into item property
            if (!empty($group_id)) {
                $doc_id = FileManager::add_document($_course, $basepath_chat, 'folder', 0, 'chat_files');
                $sql = "INSERT INTO $TABLEITEMPROPERTY (c_id, tool,insert_user_id,insert_date,lastedit_date,ref,lastedit_type,lastedit_user_id,to_group_id,to_user_id,visibility)
						VALUES ($course_id, 'document',1,NOW(),NOW(),$doc_id,'FolderCreated',1,$group_id,NULL,0)";
                Database::query($sql);
            }
        }
    }

    $filename_chat = '';
    if (!empty($group_id)) {
        $filename_chat = 'messages-'.$date_now.'_gid-'.$group_id.'.log.html';
    } else {
        if (!empty($session_id)) {
            $filename_chat = 'messages-'.$date_now.'_sid-'.$session_id.'.log.html';
        } else {
            $filename_chat = 'messages-'.$date_now.'.log.html';
        }
    }

    if (!file_exists($chat_path.$filename_chat)) {
        @fclose(fopen($chat_path.$filename_chat, 'w'));
        if (!api_is_anonymous()) {
            $doc_id = FileManager::add_document($_course, $basepath_chat.'/'.$filename_chat, 'file', 0, $filename_chat);
            api_item_property_update(
                $_course,
                TOOL_DOCUMENT,
                $doc_id,
                'DocumentAdded',
                $_user['user_id'],
                $group_id,
                null,
                null,
                null,
                $session_id
            );
            api_item_property_update(
                $_course,
                TOOL_DOCUMENT,
                $doc_id,
                'invisible',
                $_user['user_id'],
                $group_id,
                null,
                null,
                null,
                $session_id
            );
            FileManager::item_property_update_on_folder($_course, $basepath_chat, $_user['user_id']);
        }
    }

    $basename_chat = '';
    if (!empty($group_id)) {
        $basename_chat = 'messages-'.$date_now.'_gid-'.$group_id;
    } else {
        if (!empty($session_id)) {
            $basename_chat = 'messages-'.$date_now.'_sid-'.$session_id;
        } else {
            $basename_chat = 'messages-'.$date_now;
        }
    }

    if ($reset && $isMaster) {

        $i = 1;
        while (file_exists($chat_path.$basename_chat.'-'.$i.'.log.html')) {
            $i++;
        }

        @rename($chat_path.$basename_chat.'.log.html', $chat_path.$basename_chat.'-'.$i.'.log.html');

        @fclose(fopen($chat_path.$basename_chat.'.log.html', 'w'));

        $doc_id = FileManager::add_document(
            $_course,
            $basepath_chat.'/'.$basename_chat.'-'.$i.'.log.html',
            'file',
            filesize($chat_path.$basename_chat.'-'.$i.'.log.html'),
            $basename_chat.'-'.$i.'.log.html'
        );

        api_item_property_update(
            $_course,
            TOOL_DOCUMENT,
            $doc_id,
            'DocumentAdded',
            $_user['user_id'],
            $group_id,
            null,
            null,
            null,
            $session_id
        );
        api_item_property_update(
            $_course,
            TOOL_DOCUMENT,
            $doc_id,
            'invisible',
            $_user['user_id'],
            $group_id,
            null,
            null,
            null,
            $session_id
        );
        FileManager::item_property_update_on_folder($_course, $basepath_chat, $_user['user_id']);

        $doc_id = DocumentManager::get_document_id($_course, $basepath_chat.'/'.$basename_chat.'.log.html');

        FileManager::update_existing_document($_course, $doc_id, 0);
    }

    $remove = 0;
    $content = array();
    if (file_exists($chat_path.$basename_chat.'.log.html')) {
        $content = file($chat_path.$basename_chat.'.log.html');
        $nbr_lines = sizeof($content);
        $remove = $nbr_lines - 100;
    }

    if ($remove < 0) {
        $remove = 0;
    }

    array_splice($content, 0, $remove);
    require 'header_frame.inc.php';

    if ($_GET['origin'] == 'whoisonline') { //the caller
        $content[0] = get_lang('CallSent').'<br />'.$content[0];
    }
    if ($_GET['origin'] == 'whoisonlinejoin') { //the joiner (we have to delete the chat request to him when he joins the chat)
        $track_user_table = Database::get_main_table(TABLE_MAIN_USER);
        $sql = "UPDATE $track_user_table set chatcall_user_id = '', chatcall_date = '', chatcall_text='' WHERE (user_id = ".$_user['user_id'].")";
        $result = Database::query($sql);
    }

    echo '<div style="margin-left: 5px;">';
    foreach ($content as & $this_line) {
        echo strip_tags(api_html_entity_decode($this_line), '<br> <span> <b> <i> <img> <font>');
    }
    echo '</div>';

    ?>

<a name="bottom" style="text-decoration:none;">&nbsp;</a>

<?php
    if ($isMaster || api_is_course_coach()) {
        $rand = mt_rand(1, 1000);
        echo '<div style="margin-left: 5px;">';
        echo '<a href="'.api_get_self(
        ).'?rand='.$rand.'&reset=1&cidReq='.$_GET['cidReq'].'#bottom" onclick="javascript: if(!confirm(\''.addslashes(
            api_htmlentities(get_lang('ConfirmReset'), ENT_QUOTES)
        ).'\')) return false;">'.Display::return_icon('delete.gif', get_lang('ClearList')).' '.get_lang(
            'ClearList'
        ).'</a>';
        echo '</div>';
    }
} else {
    require 'header_frame.inc.php';
    $message = get_lang('CloseOtherSession');
    Display :: display_error_message($message);
}

require 'footer_frame.inc.php';