<?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\Vmail;

class Domains extends \Panel\Vmail {

  function beforeRoute($f3) {

    parent::beforeRoute($f3);

    if ($f3->exists('PARAMS.domain')) {
      $domain = $f3->get('PARAMS.domain');
      if ($domain_array = $f3->call('\Panel::vGet', array("vmail-domains-get.sh -d $domain -c", FALSE))) {
        $f3->set('domain_array', $domain_array[0]);
        /* get cert info */
        $mxdomain = "mail.$domain";
        if ($f3->call('\Panel::verifyCertificateExists', $mxdomain)) {
          if ($cert_array = $f3->call('\Panel::vGet', array("letsencrypt-get.sh -d $mxdomain -c", FALSE))) {
            $cert_array = $cert_array[0];
            /* remove time from expiration date */
            $end =  $cert_array['end'];
            $end_array = explode(' ', $end);
            unset($end_array[2]);
            $end = implode(' ', $end_array);
            $cert_array['end'] = $end;
            /* add line breaks */
            $common =  $cert_array['common'];
            $alternative = $cert_array['alternative'];
            $alternative = preg_replace('/ /', '<br>', $alternative);
            $cert_array['alternative'] = $alternative;
            $f3->set('cert_array', $cert_array);
          }
        }
        /* get dns info */
        $dnsinfo = array();
        $dnsinfo['verified_count'] = 0;
        $dnsinfo['server_addr'] = $_SERVER['SERVER_ADDR'];
        # A record
        $dnsinfo['a']['color'] = "red";
        if ($certdomain_dns = @dns_get_record("$mxdomain", DNS_A)) {
          if ($certdomain_dns[0]['ip'] == $dnsinfo['server_addr']) {
            $dnsinfo['a']['status'] = "Verified";
            $dnsinfo['a']['color'] = "black";
            $dnsinfo['verified_count']++;
          } else {
             $dnsinfo['a']['status'] = "Update";
          }
        } else {
           $dnsinfo['a']['status'] = "Create";
        }
        # MX record
        $dnsinfo['mx']['color'] = "red";
        if (getmxrr($domain, $mx)) {
          if (in_array($mxdomain, $mx)) {
            $dnsinfo['mx']['status'] = "Verified";
            $dnsinfo['mx']['color'] = "black";
            $dnsinfo['verified_count']++;
          } else {
            $dnsinfo['mx']['status'] = "Update";
          }
        } else {
          $dnsinfo['mx']['status'] = "Create";
        }
        # SPF (TXT) record
        $dnsinfo['spf']['status'] = "Create";
        $dnsinfo['spf']['color'] = "red";
        if ($dns_txt_records = @dns_get_record("$domain", DNS_TXT)) {
          foreach ($dns_txt_records as $k=>$dns_txt_record) {
            if (str_starts_with($dns_txt_record['txt'], 'v=spf1')) {
              $dnsinfo['spf']['status'] = "Update";
              if (str_contains($dns_txt_record['txt'], ' mx ')) {
                $dnsinfo['spf']['status'] = "Verified";
                $dnsinfo['spf']['color'] = "black";
                $dnsinfo['verified_count']++;
              }
            }
          }
        }
        # DKIM
        $dnsinfo['dkim']['color'] = "red";
        if ($f3->call('\Panel::verifyDkimExists', $domain)) {
          if ($dkim_array = $f3->call('\Panel::vGet', array("vmail-dkim-get.sh -d $domain -c", FALSE))) {
            $dkim_hostname = $dkim_array[0]['selector'] . "._domainkey.$domain";
            if ($dns_txt_records = @dns_get_record($dkim_hostname, DNS_TXT)) {
              $dnsinfo['dkim']['status'] = "Verified";
              $dnsinfo['dkim']['color'] = "black";
              $dnsinfo['verified_count']++;
            } else {
              $dnsinfo['dkim']['status'] = "Update";
              $dnsinfo['dkim']['selector'] = $dkim_array[0]['selector'];
              $dnsinfo['dkim']['dkim'] = $dkim_array[0]['dkim'];
            }
          } else {
            $dnsinfo['dkim']['status'] = "Error";
          }
        } else {
          $dnsinfo['dkim']['status'] = "Create";
        }

        # DMARC (TXT) record
        $dnsinfo['dmarc']['status'] = "Create";
        $dnsinfo['dmarc']['color'] = "red";
        if ($dns_txt_records = @dns_get_record("_dmarc.$domain", DNS_TXT)) {
          foreach ($dns_txt_records as $k=>$dns_txt_record) {
            if (str_starts_with($dns_txt_record['txt'], 'v=DMARC1')) {
              $dnsinfo['dmarc']['status'] = "Verified";
              $dnsinfo['dmarc']['color'] = "black";
              $dnsinfo['verified_count']++;
            } else {
              $dnsinfo['dmarc']['status'] = "Update";
            }
          }
        }

        if ($dnsinfo['verified_count'] == 5) {
          $dnsinfo['status'] = 'Verified';
        } else {
          $dnsinfo['status'] = 'Update';
        }

        $f3->set('dnsinfo', $dnsinfo);

      }
    } else {
      if ($domains_array = $f3->call('\Panel::vGet', array("vmail-domains-get.sh -c", FALSE))) {
        $f3->set('domains_array', $domains_array);
      }
    }
  }

        // $dnsinfo['mx']['status'] = ready/update/none
        // $dnsinfo['spf']['status'] = ready/update/none
        // $dnsinfo['spf']['data'] = current_record
        // $dnsinfo['dkim']['status'] = ready/update/none
        // $dnsinfo['dkim']['selector'] =
        // $dnsinfo['dkim']['data'] =

          // dns_a   gethostbyname()
          // dns_mx  getmxrr() / dns_get_mx()
          // dns_spf checkdnsrr() / dns_check_record()
          // dns_dkim
          // # domain does not have cert yet, check DNS
          // $dns_a_record =  $_SERVER['SERVER_ADDR'];
          // if ($certdomain_dns = @dns_get_record("$certdomain", DNS_A)) {
          //   if ($certdomain_dns[0]['ip'] == $dns_a_record) {
          //     $dns_status = "ready";
          //   } else {
          //     $dns_status = "update";
          //   }
          // } else {
          //   $dns_status = "none";
          // }
          // $f3->set('dns_a_record', $dns_a_record);
          // $f3->set('dns_status', $dns_status);

  static function get($f3) {

    if ($f3->exists('PARAMS.domain')) {

      $domain_array = $f3->get('domain_array');

      /* convert data for frontend display */
      if ($domain_array['status'] == 1) {
        $domain_array['status'] = 'Enabled';
      } else {
        $domain_array['status'] = 'Disabled';
      }
      if ($domain_array['mbox_limit'] == "NULL") {
        $domain_array['mbox_limit'] = 'Unlimited';
      }

      if ($domain_array['mbox_quota_default'] == "NULL") {
        $domain_array['mbox_quota_default'] = 'Unlimited';
      } else {
        $domain_array['mbox_quota_default'] .= ' GB';
      }

      if ($domain_array['mbox_ratelimit_default'] == "NULL") {
        $domain_array['mbox_ratelimit_default'] = 'Unlimited';
      } else {
        $domain_array['mbox_ratelimit_default'] .= ' emails per hour';
      }

      $f3->set('domain_array', $domain_array);

      $domain = $f3->get('PARAMS.domain');
      $f3->set('page_header', "Email Domain $domain");
      echo \Template::instance()->render('vmail/domains-domain.html');

    } else {

      $f3->set('page_header', "Email Domains");
      echo \Template::instance()->render('vmail/domains.html');

    }

  }

}