Streaming/index.php

<?php
$cookieParams = session_get_cookie_params();
$cookieParams['samesite'] = "Lax";
session_set_cookie_params($cookieParams);
session_start();

if (!empty($_SESSION["kod"]) && !empty($_SESSION['listeners']) && !empty($_SESSION['inicialy']))
    {
        $kod = $_SESSION['kod'];
        $fol = 'streamy/' . $kod . '/';
        $connsa = $fol . 'people.json';

        if (file_exists($connsa))
        {
            $connections = json_decode(file_get_contents($connsa), true);
            foreach($connections as $key => $value) {
                if((time() - $value['timestamp']) > 300){
                    unset($connections[$key]);
                }
            }
            file_put_contents($connsa, json_encode($connections));
        }
}

if (!empty($_GET['logout']))
{
    $connections = json_decode(file_get_contents($connsa), true);
    unset($connections[session_id()]);
    file_put_contents($connsa, json_encode($connections));
    $_SESSION["kod"] = '';
    $_SESSION["listeners"] = '';
    $_SESSION['inicialy'] = '';
    session_destroy();
    session_unset(); 
    setcookie("inicialy", "", 1);
    echo '
    <script>
    window.location.href = "index.php";
    </script>
    ';
}
elseif (!empty($_GET['verify'])&&!empty($_POST['kod'])){
    if ($_GET['verify'] == 1){
        $fol = 'streamy/' . $_POST['kod'] . '/';
        $configa = $fol . 'config.json';
        if (file_exists($configa))
        {
            echo "verified";
        }
        else{
            echo "unverified";
        }
    }
}
elseif (!empty($_GET['keepalive'])){
    $connections = json_decode(file_get_contents($connsa), true);
    $connections[session_id()]["timestamp"] = time();
    $connections[session_id()]["dateping"] = date("Y.n.d H:i:s");
    file_put_contents($connsa, json_encode($connections));
}
elseif (!empty($_GET['chat'])){
    if (!empty($_SESSION["kod"]) && !empty($_SESSION['listeners']) && !empty($_SESSION['inicialy']))
    {
        $kod = $_SESSION['kod'];
        $fol = 'streamy/' . $kod . '/';
        $chata = $fol . 'chat.txt';

        if (file_exists($chata))
        {
            if (!empty($_GET['send'])){
                $data = '• ' . $_SESSION['inicialy'] . ':' . $_POST['text'] . "\n";
                file_put_contents($chata, $data, FILE_APPEND);
            }
            else{
               echo file_get_contents($chata);
            }
        }
    }
}
else
{
    if (!empty($_POST['kod']) && !empty($_POST['listeners']) && !empty($_POST['ini'])){
        
        $fol = 'streamy/' . $_POST['kod'] . '/';
        $configa = $fol . 'config.json';
        $ida = $fol . 'id.txt';
        $connsa = $fol . 'people.json';
        if (file_exists($configa))
        {
            $jsonobj = file_get_contents($configa);
            $config = json_decode($jsonobj, false);

            $inicialy = str_replace($config->adminpwd, "admin", $_POST['ini']);

            $_SESSION["kod"] = $_POST['kod'];
            $_SESSION['listeners'] = $_POST['listeners'];
            $_SESSION["inicialyOriginal"] = $_POST['ini'];
            $_SESSION['inicialy'] = $inicialy;
            setcookie("inicialy", $inicialy);
            
            $connections = json_decode(file_get_contents($connsa), true);
            $temparray = array("dateping"=>date("Y.n.d H:i:s"), "date"=>date("Y.n.d H:i:s"), "timestamp"=>time(), "listeners"=>$_SESSION['listeners'], "inicialy"=>$_SESSION['inicialy'], "ip"=>$_SERVER["REMOTE_ADDR"]);
            $connections[session_id()] = $temparray;
            file_put_contents($connsa, json_encode($connections));

            $data = 'OK: ' . date("Y.n.d H:i:s") . "," . $_POST['listeners'] . "," . $inicialy . "," . $_SERVER['REMOTE_ADDR'] . "\n";
            file_put_contents($fol . 'log.txt', $data, FILE_APPEND);
            echo '
                <script>
                location.reload();
                </script>
                ';
        }
        else
        {
            $data = 'ERR: ' . date("Y.n.d H:i:s") . "," . $_POST['listeners'] . "," . $_POST['ini'] . "," . $_SERVER['REMOTE_ADDR'] . "\n";
            file_put_contents($fol . 'log.txt', $data, FILE_APPEND);
            $_SESSION["kod"] = '';
            $_SESSION['listeners'] = '';
            $_SESSION['inicialy'] = '';
            $_SESSION["id"] = 0;
                echo '
                <script>
                location.reload();
                </script>
                ';
            session_destroy();
        }
    }
    elseif (!empty($_SESSION['listeners']) && !empty($_SESSION['inicialy']) && !empty($_SESSION['kod'])){
        $fol = 'streamy/' . $_SESSION['kod'] . '/';
        $configa = $fol . 'config.json';
        $ida = $fol . 'id.txt';
        if (file_exists($configa))
        {
            $jsonobj = file_get_contents($configa);
            $config = json_decode($jsonobj, false);

            $kod = $_SESSION['kod'];
            $fol = 'streamy/' . $kod . '/';

            $url = $config->url;
            $type = $config->type;
            $year = date("Y");
            
            $player = file_get_contents("templates/player.html");
            $player = str_replace('__VLOZ_URL_AUDIA__', $url , $player);
            $player = str_replace('__VLOZ_TYP_AUDIA__', $type , $player);
            $player = str_replace('__VLOZ_ROK__', $year, $player);
            if($_SESSION["inicialyOriginal"] == $config->adminpwd){
                $player = str_replace('__VLOZ_ADMIN_LINK__', '<a href="admin.php">Administrácia</a>', $player);
            }
            else{
                $player = str_replace('__VLOZ_ADMIN_LINK__', "" , $player);
            }
            echo($player);
        }
    }
    else{
        echo str_replace("__VLOZ_ROK__", date("Y"), file_get_contents("templates/login.html"));
    }
}
?>