<?php

/**
 * vpanel-stack
 * https://git.stack-source.com/msb/vpanel-stack
 * Copyright (c) 2022 Matthew Saunders Brown <matthewsaundersbrown@gmail.com>
 * GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 */

namespace Panel;

class Vdns extends \Panel {

  function beforeRoute($f3) {

    parent::beforeRoute($f3);

    if ($f3->get('PDNSADMIN') != '1') {
      $f3->reroute('/');
    }

  }

  public static function verifyZoneExists($zone) {

    global $f3;

    exec("/usr/local/bin/vdns-zone-ext.sh -z $zone", $output, $result_code);
    if ($result_code == 0 && $output[0] == 'true') {
      return TRUE;
    } else {
      return FALSE;
    }

  }

  public static function returnZoneDefaultsArray($zone) {

    global $f3;

    if ($defaults_array = $f3->call('\Panel::vGet', array("vdns-zone-def.sh -z $zone -c", FALSE))) {
      return $defaults_array;
    } else {
      return FALSE;
    }

  }

  public static function returnZoneDefaultsNameserverArray($zone) {

    global $f3;

    if ($defaults_array = $f3->call('\Panel\Vdns::returnZoneDefaultsArray', $zone)) {
        $defaults_ns_array = array();
        foreach($defaults_array as $record_array) {
          if ($record_array['type'] == "NS") {
            $defaults_ns_array[] = $record_array['content'];
          }
        }
        sort($defaults_ns_array);
        return $defaults_ns_array;
    } else {
      return FALSE;
    }

  }

  public static function returnNameserverArray($zone) {

    global $f3;

    $ns_array = array();
    if ($dns_ns_array = dns_get_record("$zone", DNS_NS)) {
      foreach ($dns_ns_array as $record_array) {
        $ns_array[] = $record_array['target'];
      }
      sort($ns_array);
      return $ns_array;
    } else {
      return FALSE;
    }


  }

  public static function returnNameserverStatus($zone) {

    global $f3;

    if ($defaults_ns_array = $f3->call('\Panel\Vdns::returnZoneDefaultsNameserverArray', $zone)) {
      if ($ns_array = $f3->call('\Panel\Vdns::returnNameserverArray', $zone)) {
        if ($defaults_ns_array === $ns_array) {
          return "Verified";
        } else {
          return "Pending";
        }
      } else {
        return "Unknown";
      }
    } else {
      return "Error";
    }

  }

}