has_online_operators.php

<?php
// -*- mode: php; coding: utf-8 -*-
//
// <copyright-and-licence-header--blahblahblah>

if (!ini_get('display_errors')) {
    ini_set('display_errors', 1);
}
error_reporting(E_ALL);

require_once dirname(__FILE__).'/libs/common.php';
require_once dirname(__FILE__).'/libs/chat.php';
require_once dirname(__FILE__).'/libs/operator.php';
require_once dirname(__FILE__).'/libs/groups.php';

function has_online_operators__main () {
    if ($_SERVER['REQUEST_METHOD'] != 'POST' ||
            $_SERVER['HTTP_X_REQUESTED_WITH'] != 'XMLHttpRequest') {
        // raising error! ajax-only allowed
        
        $data = array(
            'error' => array(
                'type' => 'ForbiddenHTTPError',
                'message' => 'HTTP Error: 403 Forbidden',
            ),
        );
        
        @header($_SERVER['SERVER_PROTOCOL'].' 403 Forbidden');
        @header('Content-Type: application/json;charset=utf-8');
        echo json_encode($data);
        
        return;
    }
    
    $groupid = verifyparam( "group", "/^\d{1,8}$/", "");
    if($groupid) {
        loadsettings();
        if($settings['enablegroups'] == '1') {
	        $group = group_by_id($groupid);
	        if(!$group) {
		        $groupid = "";
	        }
        } else {
	        $groupid = "";
        }
    }
    
    $data = array(
        'is_online' => $is_online = has_online_operators($groupid),
        'error' => NULL,
    );
    
    @header('Content-Type: application/json;charset=utf-8');
    echo json_encode($data);
}

has_online_operators__main();