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<?php
/* written by steweb57 & Rexy */

# Choice of language
$Language = 'en';
if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])){
        $Langue         = explode(",",$_SERVER['HTTP_ACCEPT_LANGUAGE']);
        $Language       = strtolower(substr(chop($Langue[0]),0,2)); }
if($Language == 'fr') {
        $l_services_title       = "Configuration des services";
        $l_main_services        = "Services principaux";
        $l_filter_services      = "Services de filtrage";
        $l_opt_services         = "Services optionnels";
        $l_service_title        = "Rôle du service";
        $l_service_start        = "Démarrer";
        $l_service_stop         = "Arréter";
        $l_service_restart      = "Redémarrer";
        $l_service_status       = "Status";
        $l_service_status_img_ok= "Démarré";
        $l_service_status_img_ko= "Arrété";
        $l_service_action       = "Actions";
        $l_radiusd              = "Serveur d'authentification et d'autorisation";
        $l_chilli               = "Passerelle d'interception et serveur DHCP";
        $l_e2guardian           = "Filtre d'URL et de contenu WEB";
        $l_mysqld               = "Serveur de la base des usagers";
        $l_lighttpd             = "Serveur WEB (Alcasar Control Center)";
        $l_sshd                 = "Accès sécurisée distant";
        $l_clamav_freshclam     = "Mise à jour de l'antivirus (toutes les 4 heures)";
        $l_clamav_daemon        = "Antimalware";
        $l_ntpd                 = "Service de mise à l'heure réseau";
        $l_postfix              = "Service de messagerie";
        $l_fail2ban             = "Détecteur d'intrusion";
        $l_nfcapd               = "Collecteur de flux NetFlow";
        $l_vnstat               = "Grapheur de flux réseau";
        $l_unbound              = "Serveur DNS principal";
        $l_unbound_blacklist    = "Serveur DNS pour la Blacklist";
        $l_unbound_whitelist    = "Serveur DNS pour la Whitelist";
        $l_dnsmasq_whitelist    = "Serveur DNS pour la Whitelist (IPSET)";
        $l_unbound_blackhole    = "Serveur DNS 'trou noir'";
        $l_ulogd_ssh            = "journalisation des accès par SSH";
        $l_ulogd_ext_access     = "journalisation des tentatives d'accès externes";
        $l_ulogd_traceability   = "journalisation des connexions WEB filtrés";
        $l_wifi4eu_id   = "Entrez votre identifiant réseau";
        $l_execute              = "Exécuter";
        $l_stop_restart         = "Arrêt et redémarrage du système";
        $l_halt                 = "Arréter le système";
        $l_reboot               = "Relancer le système";
} else if($Language == 'es') {
        $l_services_title       = "Configuración de Servicios";
        $l_main_services        = "Servicios Principales";
        $l_filter_services      = "Servicios de Filtrado";
        $l_opt_services         = "Servicios Opcionales";
        $l_service_title        = "función del servicio";
        $l_service_start        = "Iniciar";
        $l_service_stop         = "Detener";
        $l_service_restart      = "Reiniciar";
        $l_service_status       = "Estado";
        $l_service_status_img_ok= "Corriendo";
        $l_service_status_img_ko= "Detenido";
        $l_service_action       = "Acciones";
        $l_radiusd              = "Servidor de autenticación y autorización.";
        $l_chilli               = "Pasarela de interceptación y servidor DHCP";
        $l_e2guardian           = "Filtro de contenidos URL y WEB";
        $l_mysqld               = "Motor de base de datos para usuarios";
        $l_lighttpd             = "Servidor WEB (ALCASAR Control Center)";
        $l_sshd                 = "Servidor Seguro Acceso Remoto";
        $l_clamav_freshclam             = "Proceso de actualización Antivirus (cada 4 horas)";
        $l_clamav_daemon        = "Antimalware";
        $l_ntpd                 = "Servidor de hora";
        $l_postfix              = "Servicio de correo electrónico";
        $l_fail2ban             = "Sistema de Detección de Intrusos";
        $l_nfcapd               = "Colector de flujo NetFlow";
        $l_vnstat               = "Graficador de tráfico de red";
        $l_unbound              = "Servidor DNS principal ";
        $l_unbound_blacklist    = "Servidor DNS de Lista Negra";
        $l_unbound_whitelist    = "Servidor DNS de Lista Blanca";
        $l_dnsmasq_whitelist    = "Servidor DNS de Lista Blanca (IPSET)";
        $l_unbound_blackhole    = "Agujero negro DNS";
        $l_ulogd_ssh            = "Proceso de registro para accesos SSH";
        $l_ulogd_ext_access     = "Proceso de registro de intentos de accesos externos";
        $l_ulogd_traceability   = "Proceso de registro de acceso WEB";
        $l_wifi4eu_id   = "Introduzca su identificador de red";
        $l_execute              = "Ejecutar";
        $l_stop_restart         = "Apagado y Reinicio del sistema";
        $l_halt                 = "Apagar el sistema";
        $l_reboot               = "Reiniciar el sistema";
} else {
        $l_services_title       = "Services configuration";
        $l_main_services        = "Main services";
        $l_filter_services      = "Filtering services";
        $l_opt_services         = "Optional services";
        $l_service_title        = "Role of the service";
        $l_service_start        = "Start";
        $l_service_stop         = "Stop";
        $l_service_restart      = "Restart";
        $l_service_status       = "Status";
        $l_service_status_img_ok= "Running";
        $l_service_status_img_ko= "Stopped";
        $l_service_action       = "Actions";
        $l_radiusd              = "Authentication and authorisation server";
        $l_chilli               = "Interception gateway and DHCP server";
        $l_e2guardian           = "URL and WEB content filter";
        $l_mysqld               = "User database server";
        $l_lighttpd             = "WEB server (ALCASAR Control Center)";
        $l_sshd                 = "Secure remote access";
        $l_clamav_freshclam     = "Antivirus update process (every 4 hours)";
        $l_clamav_daemon= "Antimalware";
        $l_ntpd                 = "Network time server";
        $l_postfix              = "E-mail service";
        $l_fail2ban             = "Intrusion Dectection System";
        $l_nfcapd               = "Netflow collector";
        $l_vnstat               = "Network grapher";
        $l_unbound              = "Main DNS server";
        $l_unbound_blacklist    = "Blacklist DNS server";
        $l_unbound_whitelist    = "Whitelist DNS server";
        $l_dnsmasq_whitelist    = "Whitelist DNS server (IPSET)";
        $l_unbound_blackhole    = "Blackhole DNS server";
        $l_ulogd_ssh            = "SSH access logging process";
        $l_ulogd_ext_access     = "Extern access attempts logging process";
        $l_ulogd_traceability   = "Filtering WEB access logging process";
        $l_wifi4eu_id   = "Enter your network identifier";
        $l_execute              = "Execute";
        $l_stop_restart         = "Halt and restart the system";
        $l_halt                 = "Halt le system";
        $l_reboot               = "Restart the system";
}

/****************************************************************
*                          CONST                                *
*****************************************************************/
define ("CONF_FILE", "/usr/local/etc/alcasar.conf");

/********************************************************
*                       CONF FILE test                  *
*********************************************************/
if (!file_exists(CONF_FILE)){
        exit("Fichier de configuration ".CONF_FILE." non présent");
}
if (!is_readable(CONF_FILE)){
        exit("Vous n'avez pas les droits de lecture sur le fichier ".CONF_FILE);
}
$file_conf = fopen(CONF_FILE, 'r');
if (!$file_conf) {
        exit('Error opening the file '.CONF_FILE);
}
while (!feof($file_conf)) {
        $buffer = fgets($file_conf, 4096);
        if ((strpos($buffer, '=') !== false) && (substr($buffer, 0, 1) !== '#')) {
                $tmp = explode('=', $buffer, 2);
                $conf[trim($tmp[0])] = trim($tmp[1]);
        }
}
fclose($file_conf);
$wifi4eu = $conf['WIFI4EU'];
$wifi4eu_code = $conf['WIFI4EU_CODE'];
// Doing an action on a service (start,stop or restart)
function serviceExec($service, $action){
        if (($action == "start")||($action == "stop")||($action == "restart")){
                exec("sudo /usr/bin/systemctl $action ".escapeshellarg($service), $retval, $retstatus);
                return $retstatus;
        } else {
                return false;
        }
}

// Testing if a service is active
function checkServiceStatus($service){
        $response = false;
        exec("sudo /usr/bin/systemctl is-active ".escapeshellarg("$service.service"), $retval);
        foreach( $retval as $val ) {
                if ($val == "active"){
                        $response = true;
                        break;
                }
        }
        return $response;
}

//-------------------------------
// WIFI4EU
//-------------------------------
if (isset($_POST['wifi4eu'])){
        switch ($_POST['wifi4eu']){
                case 'on' :
                        $network_code = trim($_POST['wifi4eu_id']);
                        if ($network_code == '') {
                                $network_code = '123e4567-e89b-12d3-a456-426655440000'; // WIFI4EU test code
                        }
                        file_put_contents(CONF_FILE, preg_replace('/WIFI4EU_CODE=.*/', 'WIFI4EU_CODE='.$network_code, file_get_contents(CONF_FILE)));
                        exec("sudo /usr/local/bin/alcasar-wifi4eu.sh -on");
                break;
                case 'off' :
                        exec("sudo /usr/local/bin/alcasar-wifi4eu.sh -off");
                break;
        }
        header('Location: '.$_SERVER['PHP_SELF']);
}

//-------------------------------
// Stop/restart system
//-------------------------------
if (isset($_POST['system'])){
        switch ($_POST['system']){
                case 'reboot' :
                        exec ("sudo /usr/local/bin/alcasar-logout.sh all");
                        exec ("sudo /usr/sbin/shutdown -r now");
                break;
                case 'halt' :
                        exec ("sudo /usr/local/bin/alcasar-logout.sh all");
                        exec ("sudo /usr/sbin/shutdown -h now");
                break;
        }
}

//-------------------------------
// Actions on services
//-------------------------------
$autorizeService = array("radiusd","chilli","mysqld","lighttpd","unbound-forward","ulogd-ssh","ulogd-ext-access","ulogd-traceability","unbound-blacklist","unbound-whitelist","dnsmasq-whitelist","unbound-blackhole","e2guardian","clamav-daemon","clamav-freshclam","sshd","ntpd","fail2ban","nfcapd","vnstat","postfix");
$autorizeAction = array("start","stop","restart");

if (isset($_GET['service'])&&(in_array($_GET['service'], $autorizeService))) {
    if (isset($_GET['action'])&&(in_array($_GET['action'], $autorizeAction))) {
        $execStatus = serviceExec($_GET['service'], $_GET['action']);
                // execStatus non exploité
        }
}

//-------------------------------
// Check services status
//-------------------------------
$MainServiceStatus = array();
$MainServiceStatus['chilli'] = checkServiceStatus("chilli");
$MainServiceStatus['radiusd'] = checkServiceStatus("radiusd");
$MainServiceStatus['mysqld'] = checkServiceStatus("mysqld");
$MainServiceStatus['lighttpd'] = checkServiceStatus("lighttpd");
$MainServiceStatus['unbound'] = checkServiceStatus("unbound");
$MainServiceStatus['nfcapd'] = checkServiceStatus("nfcapd");
$MainServiceStatus['ulogd_ssh'] = checkServiceStatus("ulogd-ssh");
$MainServiceStatus['ulogd_ext_access'] = checkServiceStatus("ulogd-ext-access");
$MainServiceStatus['ulogd_traceability'] = checkServiceStatus("ulogd-traceability");
$MainServiceStatus['sshd'] = checkServiceStatus("sshd");
$MainServiceStatus['ntpd'] = checkServiceStatus("ntpd");
$MainServiceStatus['fail2ban'] = checkServiceStatus("fail2ban");
$MainServiceStatus['vnstat'] = checkServiceStatus("vnstat");
$MainServiceStatus['postfix'] = checkServiceStatus("postfix");

$FilterServiceStatus = array();
$FilterServiceStatus['unbound_blacklist'] = checkServiceStatus("unbound-blacklist");
$FilterServiceStatus['unbound_whitelist'] = checkServiceStatus("unbound-whitelist");
$FilterServiceStatus['dnsmasq_whitelist'] = checkServiceStatus("dnsmasq-whitelist");
$FilterServiceStatus['unbound_blackhole'] = checkServiceStatus("unbound-blackhole");
$FilterServiceStatus['e2guardian'] = checkServiceStatus("e2guardian");
$FilterServiceStatus['clamav_daemon'] = checkServiceStatus("clamav-daemon");
$FilterServiceStatus['clamav_freshclam'] = checkServiceStatus("clamav-freshclam");

/****************
*       MAIN    *
*****************/

?><!DOCTYPE HTML>
<html>
<head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <title><?php echo $l_services_title; ?></title>
        <link rel="stylesheet" href="/css/acc.css" type="text/css">
        <script type="text/javascript" src="/js/jquery.min.js"></script>
</head>
<body>
<div id="ldoverlay" class="overlay">
        <div class="lds-spinner" id="spinner"><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div></div>
</div>
<div class="panel">
        <div class="panel-header"><?= $l_main_services ?></div>
        <div class="panel-row">
        <table width="100%" border=0 cellspacing=0 cellpadding=0>
                <tr align="center"><td><?php echo $l_service_status;?></td><td colspan="2"><?php echo $l_service_title;?></td><td colspan="3"><?php echo $l_service_action;?></td></tr>
                <?php foreach( $MainServiceStatus as $serviceName => $statusOK ) { ?>
                <tr>
                <?php if ($statusOK) { ?>
                        <td align="center"><img src="/images/state_ok.gif" width="15" height="15" alt="<?php echo $l_service_status_img_ok; ?>"></td>
                        <td align="center"><?php $comment="l_$serviceName"; echo "<b>$serviceName</b></td><td>${$comment}" ;?> </td>
                        <td width="80" align="center">---</td>
                        <td width="80" align="center"><?php if (($serviceName != "chilli") && ($serviceName != "lighttpd")) { echo "<a href=\"".$_SERVER['PHP_SELF']."?action=stop&service=".str_replace('_','-',$serviceName)."\"> $l_service_stop</a>"; } else echo "---";?></td>
                        <td width="80" align="center"><a href="<?php echo $_SERVER['PHP_SELF']."?action=restart&service=".str_replace('_','-',$serviceName)."\"> $l_service_restart";?></a></td>
                <?php } else { ?>
                        <td align="center"><img src="/images/state_error.gif" width="15" height="15" alt="<?php echo $l_service_status_img_ko ?>"></td>
                        <td align="center"><?php $comment="l_$serviceName"; echo "$serviceName</td><td>${$comment}" ;?> </td>
                        <td width="80" align="center"><a href="<?php echo $_SERVER['PHP_SELF']."?action=start&service=".str_replace('_','-',$serviceName)."\"> $l_service_start";?></a></td>
                        <td width="80" align="center">---</td>
                        <td width="80" align="center">---</td>
                <?php } ?>
                </tr>
                <?php } ?>
        </table>
        </div>
</div>
<div class="panel">
        <div class="panel-header"><?= $l_filter_services ?></div>
        <div class="panel-row">
        <table width="100%" border=0 cellspacing=0 cellpadding=0>
                <tr align="center"><td><?php echo $l_service_status;?></td><td colspan="2"><?php echo $l_service_title;?></td><td colspan="3"><?php echo $l_service_action;?></td></tr>
                <!--    <TR align="center"> -->
                <?php foreach( $FilterServiceStatus as $serviceName => $statusOK ) { ?>
                <tr>
                <?php if ($statusOK) { ?>
                        <td align="center"><img src="/images/state_ok.gif" width="15" height="15" alt="<?php echo $l_service_status_img_ok; ?>"></td>
                        <td align="center"><?php $comment="l_$serviceName"; echo "<b>$serviceName</b></td><td>${$comment}" ;?> </td>
                        <td width="80" align="center">---</td>
                        <td width="80" align="center"><a href="<?php echo $_SERVER['PHP_SELF']."?action=stop&service=".str_replace('_','-',$serviceName)."\"> $l_service_stop";?></a></td>
                        <td width="80" align="center"><a href="<?php echo $_SERVER['PHP_SELF']."?action=restart&service=".str_replace('_','-',$serviceName)."\"> $l_service_restart";?></a></td>
                        <?php } else { ?>
                        <td align="center"><img src="/images/state_error.gif" width="15" height="15" alt="<?php echo $l_service_status_img_ko ?>"></td>
                        <td align="center"><?php $comment="l_$serviceName"; echo "$serviceName</td><td>${$comment}" ;?> </td>
                        <td width="80" align="center"><a href="<?php echo $_SERVER['PHP_SELF']."?action=start&service=".str_replace('_','-',$serviceName)."\"> $l_service_start";?></a></td>
                        <td width="80" align="center">---</td>
                        <td width="80" align="center">---</td>
                        <?php } ?>
                </tr>
                <?php } ?>
        </table>
        </div>
</div>
<div class="panel">
        <div class="panel-header"><?= $l_opt_services ?></div>
        <div class="panel-row">
        <form action="<?php echo $_SERVER['PHP_SELF']?>" method=POST>
        <table width="100%" border=0 cellspacing=0 cellpadding=0>
                <tr align="center"><td><?php echo $l_service_status;?></td><td colspan="2"> </td><td colspan="3"><?php echo $l_service_action;?></td></tr>
                <tr>
                        <?php if ($wifi4eu == "on") { ?>
                        <td align="center"><img src="/images/state_ok.gif" width="15" height="15" alt="<?php echo $l_service_status_img_ok; ?>"></td>
                        <td align="center"><b>WIFI4EU</b></td><td><?php echo "network ID : $wifi4eu_code"; ?></td>
                        <td width="80" align="center">---</td>
                        <td width="80" align="center"><input type="submit" onClick="document.getElementById('ldoverlay').style.display='block';" value="<?echo $l_service_stop;?>"><input type=hidden name="wifi4eu" value="off"></td>
                        <td width="80" align="center">---</td>
                        <?php } else { ?>
                        <td align="center"><img src="/images/state_error.gif" width="15" height="15" alt="<?php echo $l_service_status_img_ko; ?>"></td>
                        <td align="center">WIFI4EU</td><td><?php echo $l_wifi4eu_id; ?> : <input type ="text" name="wifi4eu_id" value="<?php echo $wifi4eu_code; ?>" size="40"></td>
                        <td width="80" align="center"><input type="submit" onClick="document.getElementById('ldoverlay').style.display='block';" value="<?echo $l_service_start;?>"><input type=hidden name="wifi4eu" value="on"></td>
                        <td width="80" align="center">---</td>
                        <td width="80" align="center">---</td>
                        <?php } ?>
                </tr>
        </table>
        </form>
        </div>
</div>
<div class="panel">
        <div class="panel-header"><?= $l_stop_restart ?></div>
        <div class="panel-row">
        <table width="100%" border=0 cellspacing=0 cellpadding=1>
                <tr><td valign="middle" align="left">
                        <form action="<?php echo $_SERVER['PHP_SELF']?>" method=POST>
                        <select name='system'>
                                <option selected value="reboot"><?echo "$l_reboot";?>
                                <option value="halt"><?echo "$l_halt";?>
                        </select>
                        <input type="submit" onClick="document.getElementById('ldoverlay').style.display='block';" value="<?echo "$l_execute";?>">
                        </form>
                </td></tr>
        </table>
        </div>
</div>
</body>
</html>