'WPA', 2 => 'WPA2', 3 => 'WPA+WPA2', 'none' => _("None"));
    $arrEncType = array('TKIP' => 'TKIP', 'CCMP' => 'CCMP', 'TKIP CCMP' => 'TKIP+CCMP');
    exec("ip -o link show | awk -F': ' '{print $2}'", $interfaces);
    if (isset($_POST['SaveHostAPDSettings'])) {
        if (CSRFValidate()) {
            SaveHostAPDConfig($arrSecurity, $arrEncType, $arr80211Standard, $interfaces, $status);
        } else {
            error_log('CSRF violation');
        }
    } elseif (isset($_POST['StartHotspot'])) {
        if (CSRFValidate()) {
            $status->addMessage('Attempting to start hotspot', 'info');
            if ($arrHostapdConf['WifiAPEnable'] == 1) {
                exec('sudo /etc/raspap/hostapd/servicestart.sh --interface uap0 --seconds 3', $return);
            } else {
                exec('sudo /etc/raspap/hostapd/servicestart.sh --seconds 5', $return);
            }
            foreach ($return as $line) {
                $status->addMessage($line, 'info');
            }
        } else {
            error_log('CSRF violation');
        }
    } elseif (isset($_POST['StopHotspot'])) {
        if (CSRFValidate()) {
            $status->addMessage('Attempting to stop hotspot', 'info');
            exec('sudo /etc/init.d/hostapd stop', $return);
            foreach ($return as $line) {
                $status->addMessage($line, 'info');
            }
        } else {
            error_log('CSRF violation');
        }
    }
    exec('cat '. RASPI_HOSTAPD_CONFIG, $hostapdconfig);
    exec('pidof hostapd | wc -l', $hostapdstatus);
    if ($hostapdstatus[0] == 0) {
        $status->addMessage('HostAPD is not running', 'warning');
    } else {
        $status->addMessage('HostAPD is running', 'success');
    }
    foreach ($hostapdconfig as $hostapdconfigline) {
        if (strlen($hostapdconfigline) === 0) {
            continue;
        }
        if ($hostapdconfigline[0] != "#") {
            $arrLine = explode("=", $hostapdconfigline) ;
            $arrConfig[$arrLine[0]]=$arrLine[1];
        }
    };
?>
  
    
 14) {
        error_log("Attempting to set channel to '".$_POST['channel']."'");
        return false;
    }
    $good_input = true;
  
    // Check for WiFi client AP mode checkbox
    $wifiAPEnable = 0;
    if ($arrHostapdConf['WifiAPEnable'] == 0) {
        if (isset($_POST['wifiAPEnable'])) {
            $wifiAPEnable = 1;
        }
    } else {
        if (isset($_POST['wifiAPEnable'])) {
            $wifiAPEnable = 1;
        }
    }
    // Check for Logfile output checkbox
    $logEnable = 0;
    if ($arrHostapdConf['LogEnable'] == 0) {
        if (isset($_POST['logEnable'])) {
            $logEnable = 1;
            exec('sudo /etc/raspap/hostapd/enablelog.sh');
        } else {
            exec('sudo /etc/raspap/hostapd/disablelog.sh');
        }
    } else {
        if (isset($_POST['logEnable'])) {
            $logEnable = 1;
            exec('sudo /etc/raspap/hostapd/enablelog.sh');
        } else {
            exec('sudo /etc/raspap/hostapd/disablelog.sh');
        }
    }
    $cfg = [];
    $cfg['LogEnable'] = $logEnable;
    $cfg['WifiAPEnable'] = $wifiAPEnable;
    $cfg['WifiManaged'] = RASPI_WIFI_CLIENT_INTERFACE;
    write_php_ini($cfg, '/etc/raspap/hostapd.ini');
    // Verify input
    if (empty($_POST['ssid']) || strlen($_POST['ssid']) > 32) {
        // Not sure of all the restrictions of SSID
        $status->addMessage('SSID must be between 1 and 32 characters', 'danger');
        $good_input = false;
    }
    if ($_POST['wpa'] !== 'none' &&
      (strlen($_POST['wpa_passphrase']) < 8 || strlen($_POST['wpa_passphrase']) > 63)) {
        $status->addMessage('WPA passphrase must be between 8 and 63 characters', 'danger');
        $good_input = false;
    }
    if (isset($_POST['hiddenSSID'])) {
        if (!is_int((int)$_POST['hiddenSSID'])) {
            $status->addMessage('Parameter hiddenSSID not a number.', 'danger');
            $good_input = false;
        } elseif ((int)$_POST['hiddenSSID'] < 0 || (int)$_POST['hiddenSSID'] >= 3) {
            $status->addMessage('Parameter hiddenSSID contains invalid configuratie value.', 'danger');
            $good_input = false;
        } else {
            $ignore_broadcast_ssid = $_POST['hiddenSSID'];
        }
    } else {
        $ignore_broadcast_ssid = '0';
    }
    if (! in_array($_POST['interface'], $interfaces)) {
        // The user is probably up to something here but it may also be a
        // genuine error.
        $status->addMessage('Unknown interface '.htmlspecialchars($_POST['interface'], ENT_QUOTES), 'danger');
        $good_input = false;
    }
    if (strlen($_POST['country_code']) !== 0 && strlen($_POST['country_code']) != 2) {
        $status->addMessage('Country code must be blank or two characters', 'danger');
        $good_input = false;
    }
    if ($good_input) {
        // Fixed values
        $config = 'driver=nl80211'.PHP_EOL;
        $config.= 'ctrl_interface='.RASPI_HOSTAPD_CTRL_INTERFACE.PHP_EOL;
        $config.= 'ctrl_interface_group=0'.PHP_EOL;
        $config.= 'auth_algs=1'.PHP_EOL;
        $config.= 'wpa_key_mgmt=WPA-PSK'.PHP_EOL;
        $config.= 'beacon_int=100'.PHP_EOL;
        $config.= 'ssid='.$_POST['ssid'].PHP_EOL;
        $config.= 'channel='.$_POST['channel'].PHP_EOL;
        if ($_POST['hw_mode'] === 'n') {
            $config.= 'hw_mode=g'.PHP_EOL;
            $config.= 'ieee80211n=1'.PHP_EOL;
            // Enable basic Quality of service
            $config.= 'wme_enabled=1'.PHP_EOL;
        } else {
            $config.= 'hw_mode='.$_POST['hw_mode'].PHP_EOL;
            $config.= 'ieee80211n=0'.PHP_EOL;
        }
        $config.= 'wpa_passphrase='.$_POST['wpa_passphrase'].PHP_EOL;
        if ($wifiAPEnable == 1) {
            $config.= 'interface=uap0'.PHP_EOL;
        } else {
            $config.= 'interface='.$_POST['interface'].PHP_EOL;
        }
        $config.= 'wpa='.$_POST['wpa'].PHP_EOL;
        $config.= 'wpa_pairwise='.$_POST['wpa_pairwise'].PHP_EOL;
        $config.= 'country_code='.$_POST['country_code'].PHP_EOL;
        $config.= 'ignore_broadcast_ssid='.$ignore_broadcast_ssid.PHP_EOL;
        file_put_contents("/tmp/hostapddata", $config);
        system("sudo cp /tmp/hostapddata " . RASPI_HOSTAPD_CONFIG, $return);
        if ($wifiAPEnable == 1) {
            // Enable uap0 configuration in dnsmasq for Wifi client AP mode
            $config = 'interface=lo,uap0               # Enable uap0 interface for wireless client AP mode'.PHP_EOL;
            $config.= 'bind-interfaces                 # Bind to the interfaces'.PHP_EOL;
            $config.= 'server=8.8.8.8                  # Forward DNS requests to Google DNS'.PHP_EOL;
            $config.= 'domain-needed                   # Don\'t forward short names'.PHP_EOL;
            $config.= 'bogus-priv                      # Never forward addresses in the non-routed address spaces'.PHP_EOL;
            $config.= 'dhcp-range=192.168.50.50,192.168.50.150,12h'.PHP_EOL;
        } else {
            // Fallback to default config
            $config = 'domain-needed'.PHP_EOL;
            $config.= 'interface='.$_POST['interface'].PHP_EOL;
            $config.= 'dhcp-range=10.3.141.50,10.3.141.255,255.255.255.0,12h'.PHP_EOL;
        }
        file_put_contents("/tmp/dnsmasqdata", $config);
        system('sudo cp /tmp/dnsmasqdata '.RASPI_DNSMASQ_CONFIG, $return);
        if ($wifiAPEnable == 1) {
            // Enable uap0 configuration in dhcpcd for Wifi client AP mode
             $config = PHP_EOL.'# RaspAP uap0 configuration'.PHP_EOL;
             $config.= 'interface uap0'.PHP_EOL;
             $config.= 'static ip_address=192.168.50.1/24'.PHP_EOL;
             $config.= 'nohook wpa_supplicant'.PHP_EOL;
        } else {
            // Default config
            $config = '# RaspAP wlan0 configuration'.PHP_EOL;
            $config.= 'hostname'.PHP_EOL;
            $config.= 'clientid'.PHP_EOL;
            $config.= 'persistent'.PHP_EOL;
            $config.= 'option rapid_commit'.PHP_EOL;
            $config.= 'option domain_name_servers, domain_name, domain_search, host_name'.PHP_EOL;
            $config.= 'option classless_static_routes'.PHP_EOL;
            $config.= 'option ntp_servers'.PHP_EOL;
            $config.= 'require dhcp_server_identifier'.PHP_EOL;
            $config.= 'slaac private'.PHP_EOL;
            $config.= 'nohook lookup-hostname'.PHP_EOL;
            $config.= 'interface '.RASPI_WIFI_CLIENT_INTERFACE.PHP_EOL;
            $config.= 'static ip_address=10.3.141.1/24'.PHP_EOL;
            $config.= 'static routers=10.3.141.1'.PHP_EOL;
            $config.= 'static domain_name_server=1.1.1.1 8.8.8.8'.PHP_EOL;
        }
        file_put_contents("/tmp/dhcpddata", $config);
        system('sudo cp /tmp/dhcpddata '.RASPI_DHCPCD_CONFIG, $return);
        if ($return == 0) {
            $status->addMessage('Wifi Hotspot settings saved', 'success');
        } else {
            $status->addMessage('Unable to save wifi hotspot settings', 'danger');
        }
    } else {
        $status->addMessage('Unable to save wifi hotspot settings', 'danger');
        return false;
    }
    return true;
}