459 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			459 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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require_once $_SERVER['DOCUMENT_ROOT'] . '/inc/prerequisites.inc.php';
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require_once $_SERVER['DOCUMENT_ROOT'] . '/inc/spf.inc.php';
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define('state_good', '<i class="bi bi-check-lg text-success"></i>');
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define('state_missing', '<i class="bi bi-x-lg text-danger"></i>');
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define('state_nomatch', "?");
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define('state_optional', " <sup>2</sup>");
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if (isset($_SESSION['mailcow_cc_role']) && ($_SESSION['mailcow_cc_role'] == "admin"|| $_SESSION['mailcow_cc_role'] == "domainadmin")) {
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  $alias_domains = array();
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  if (isset($_GET['domain'])) {
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    $domain_details = mailbox('get', 'domain_details', $_GET['domain']);
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    if ($domain_details !== false) {
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      $domain = $_GET['domain'];
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      $alias_domains = array_merge($alias_domains, mailbox('get', 'alias_domains', $domain));
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    }
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    else {
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      echo "No such domain in context";
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      exit();
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    }
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  }
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  $ch = curl_init('http://ip4.mailcow.email');
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  curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
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  curl_setopt($ch, CURLOPT_VERBOSE, false);
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  curl_setopt($ch, CURLOPT_HEADER, false);
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  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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  curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 3);
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  $ip = curl_exec($ch);
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  curl_close($ch);
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  $ch = curl_init('http://ip6.mailcow.email');
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  curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6);
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  curl_setopt($ch, CURLOPT_VERBOSE, false);
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  curl_setopt($ch, CURLOPT_HEADER, false);
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  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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  curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 3);
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  $ip6 = curl_exec($ch);
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  curl_close($ch);
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  $ptr = implode('.', array_reverse(explode('.', $ip))) . '.in-addr.arpa';
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  if (!empty($ip6)) {
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    $ip6_full = str_replace('::', str_repeat(':', 9-substr_count($ip6, ':')), $ip6);
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    $ip6_full = str_replace('::', ':0:', $ip6_full);
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    $ip6_full = str_replace('::', ':0:', $ip6_full);
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    $ptr6 = '';
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    foreach (explode(':', $ip6_full) as $part) {
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      $ptr6 .= str_pad($part, 4, '0', STR_PAD_LEFT);
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    }
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    $ptr6 = implode('.', array_reverse(str_split($ptr6, 1))) . '.ip6.arpa';
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  }
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  $https_port = strpos($_SERVER['HTTP_HOST'], ':');
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  if ($https_port === FALSE) {
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    $https_port = 443;
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  }
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  else {
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    $https_port = substr($_SERVER['HTTP_HOST'], $https_port+1);
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  }
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  if (!isset($autodiscover_config['sieve'])) {
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    $autodiscover_config['sieve'] = array(
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      'server' => $mailcow_hostname,
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      'port' => array_pop(explode(':', getenv('SIEVE_PORT')))
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    );
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  }
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  // Init records array
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  $spf_link = '<a href="http://www.open-spf.org/SPF_Record_Syntax/" target="_blank">SPF Record Syntax</a><br />';
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  $dmarc_link = '<a href="https://www.kitterman.com/dmarc/assistant.html" target="_blank">DMARC Assistant</a>';
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  $records = array();
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  if ($_SESSION['mailcow_cc_role'] == "admin") {
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    $records[] = array(
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      $mailcow_hostname,
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      'A',
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      $ip
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    );
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    $records[] = array(
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      $ptr,
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      'PTR',
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      $mailcow_hostname
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    );
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    if (!empty($ip6)) {
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      $records[] = array(
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        $mailcow_hostname,
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        'AAAA',
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        expand_ipv6($ip6)
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      );
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      $records[] = array(
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        $ptr6,
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        'PTR',
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        $mailcow_hostname
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      );
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    }
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    $records[] = array(
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      '_25._tcp.' . $autodiscover_config['smtp']['server'],
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      'TLSA',
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      generate_tlsa_digest($autodiscover_config['smtp']['server'], 25, 1)
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    );
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  }
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  $records[] = array(
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    $domain,
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    'MX',
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    $mailcow_hostname
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  );
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  if (!in_array($domain, $alias_domains)) {
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    $records[] = array(
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      'autodiscover.' . $domain,
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      'CNAME',
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      $mailcow_hostname
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    );
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    $records[] = array(
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      '_autodiscover._tcp.' . $domain,
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      'SRV',
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      $mailcow_hostname . ' ' . $https_port
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    );
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    $records[] = array(
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      'autoconfig.' . $domain,
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      'CNAME',
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      $mailcow_hostname
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    );
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  }
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  $records[] = array(
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    $domain,
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    'TXT',
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    $spf_link,
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    state_optional
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  );
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  $records[] = array(
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    '_dmarc.' . $domain,
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    'TXT',
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    $dmarc_link,
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    state_optional
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  );
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  if (!empty($dkim = dkim('details', $domain))) {
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    $records[] = array(
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      $dkim['dkim_selector'] . '._domainkey.' . $domain,
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      'TXT',
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      $dkim['dkim_txt']
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    );
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  }
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  if (!in_array($domain, $alias_domains)) {
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    $current_records = (array)dns_get_record('_pop3._tcp.' . $domain, DNS_SRV);
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    if (count($current_records) == 0 || $current_records[0]['target'] != '') {
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      if ($autodiscover_config['pop3']['tlsport'] != '110') {
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        $records[] = array(
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          '_pop3._tcp.' . $domain,
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          'SRV',
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          $autodiscover_config['pop3']['server'] . ' ' . $autodiscover_config['pop3']['tlsport']
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        );
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      }
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    }
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    else {
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      $records[] = array(
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        '_pop3._tcp.' . $domain,
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        'SRV',
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        '. 0'
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      );
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    }
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    $current_records = (array)dns_get_record('_pop3s._tcp.' . $domain, DNS_SRV);
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    if (count($current_records) == 0 || $current_records[0]['target'] != '') {
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      if ($autodiscover_config['pop3']['port'] != '995') {
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        $records[] = array(
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          '_pop3s._tcp.' . $domain,
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          'SRV',
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          $autodiscover_config['pop3']['server'] . ' ' . $autodiscover_config['pop3']['port']
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        );
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      }
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    }
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    else {
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      $records[] = array(
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        '_pop3s._tcp.' . $domain,
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        'SRV',
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        '. 0'
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      );
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    }
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    if ($autodiscover_config['imap']['tlsport'] != '143') {
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      $records[] = array(
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        '_imap._tcp.' . $domain,
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        'SRV',
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        $autodiscover_config['imap']['server'] . ' ' . $autodiscover_config['imap']['tlsport']
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      );
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    }
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    if ($autodiscover_config['imap']['port'] != '993') {
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      $records[] = array(
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        '_imaps._tcp.' . $domain,
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        'SRV',
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        $autodiscover_config['imap']['server'] . ' ' . $autodiscover_config['imap']['port']
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      );
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    }
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    if ($autodiscover_config['smtp']['tlsport'] != '587') {
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      $records[] = array(
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        '_submission._tcp.' . $domain,
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        'SRV',
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        $autodiscover_config['smtp']['server'] . ' ' . $autodiscover_config['smtp']['tlsport']
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      );
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    }
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    if ($autodiscover_config['smtp']['port'] != '465') {
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      $records[] = array(
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        '_smtps._tcp.' . $domain,
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        'SRV',
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        $autodiscover_config['smtp']['server'] . ' ' . $autodiscover_config['smtp']['port']
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      );
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    }
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    if ($autodiscover_config['sieve']['port'] != '4190') {
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      $records[] = array(
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        '_sieve._tcp.' . $domain,
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        'SRV',
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        $autodiscover_config['sieve']['server'] . ' ' . $autodiscover_config['sieve']['port']
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      );
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    }
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  }
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  $record_types = array(
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    'A' => DNS_A,
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    'AAAA' => DNS_AAAA,
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    'CNAME' => DNS_CNAME,
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    'MX' => DNS_MX,
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    'PTR' => DNS_PTR,
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    'SRV' => DNS_SRV,
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    'TXT' => DNS_TXT,
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  );
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  $data_field = array(
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    'A' => 'ip',
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    'AAAA' => 'ipv6',
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    'CNAME' => 'target',
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    'MX' => 'target',
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    'PTR' => 'target',
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    'SRV' => 'data',
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    'TLSA' => 'data',
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    'TXT' => 'txt',
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  );
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  ?>
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  <div class="table-responsive" id="dnstable">
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    <table class="table table-striped">
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      <tr>
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        <th><?=$lang['diagnostics']['dns_records_name'];?></th>
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        <th><?=$lang['diagnostics']['dns_records_type'];?></th>
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        <th><?=$lang['diagnostics']['dns_records_data'];?></th>
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        <th><?=$lang['diagnostics']['dns_records_status'];?></th>
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      </tr>
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      <?php
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      foreach ($records as &$record) {
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        $record[1] = strtoupper($record[1]);
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        $state = state_optional;
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        if ($record[1] == 'TLSA') {
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          $currents = (array)dns_get_record($record[0], 52, $_, $_, TRUE);
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          foreach ($currents as &$current) {
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            $current['type'] = 'TLSA';
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            $current['cert_usage'] = hexdec(bin2hex($current['data'][0]));
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            $current['selector'] = hexdec(bin2hex($current['data'][1]));
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            $current['match_type'] = hexdec(bin2hex($current['data'][2]));
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            $current['cert_data'] = bin2hex(substr($current['data'], 3));
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            $current['data'] = $current['cert_usage'] . ' ' . $current['selector'] . ' ' . $current['match_type'] . ' ' . $current['cert_data'];
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          }
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          unset($current);
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        }
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        else {
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          $currents = (array)dns_get_record($record[0], $record_types[$record[1]]);
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          if ($record[0] == $mailcow_hostname && ($record[1] == "A" || $record[1] == "AAAA")) {
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            if (!empty((array)dns_get_record($record[0], DNS_CNAME))) {
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              $currents[0]['ip'] = state_missing . ' <b>(CNAME)</b>';
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              $currents[0]['ipv6'] = state_missing . ' <b>(CNAME)</b>';
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            }
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          }
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          if ($record[1] == 'SRV') {
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            foreach ($currents as &$current) {
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              if ($current['target'] == '') {
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                $current['target'] = '.';
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                $current['port'] = '0';
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              }
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              $current['data'] = $current['target'] . ' ' . $current['port'];
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            }
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            unset($current);
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          }
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          elseif ($record[1] == 'TXT') {
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            foreach ($currents as &$current) {
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              unset($current);
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            }
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            unset($current);
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          }
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          elseif ($record[1] == 'AAAA') {
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            foreach ($currents as &$current) {
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              $current['ipv6'] = expand_ipv6($current['ipv6']);
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            }
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          }
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        }
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        if ($record[1] == 'CNAME' && count($currents) == 0) {
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          // A and AAAA are also valid instead of CNAME
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          $a = (array)dns_get_record($record[0], DNS_A);
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          $cname = (array)dns_get_record($record[2], DNS_A);
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          if (count($a) > 0 && count($cname) > 0) {
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            if ($a[0]['ip'] == $cname[0]['ip']) {
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              $currents = array(
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                array(
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                  'host' => $record[0],
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                  'class' => 'IN',
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                  'type' => 'CNAME',
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                  'target' => $record[2]
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                )
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              );
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              $aaaa = (array)dns_get_record($record[0], DNS_AAAA);
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              $cname = (array)dns_get_record($record[2], DNS_AAAA);
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              if (count($aaaa) == 0 || count($cname) == 0 || expand_ipv6($aaaa[0]['ipv6']) != expand_ipv6($cname[0]['ipv6'])) {
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                $currents[0]['target'] = expand_ipv6($aaaa[0]['ipv6']) . ' <sup>1</sup>';
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              }
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            }
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            else {
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              $currents = array(
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                array(
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                  'host' => $record[0],
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                  'class' => 'IN',
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                  'type' => 'CNAME',
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                  'target' => $a[0]['ip'] . ' <sup>1</sup>'
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                )
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              );
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            }
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          }
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        }
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        foreach ($currents as &$current) {
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          if ($current['type'] == 'TXT' &&
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          stripos($current['txt'], 'v=dmarc') === 0 &&
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          $record[2] == $dmarc_link) {
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            $current['txt'] = str_replace(' ', '', $current['txt']);
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            $state = $current[$data_field[$current['type']]] . state_optional;
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          }
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          elseif ($current['type'] == 'TXT' &&
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          stripos($current['txt'], 'v=spf') === 0 &&
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          $record[2] == $spf_link) {
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            $state = state_nomatch;
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            $rslt = get_spf_allowed_hosts($record[0], true);
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            if (in_array($ip, $rslt) && in_array(expand_ipv6($ip6), $rslt)) {
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              $state = state_good;
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            }
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            $state .= '<br />' . $current[$data_field[$current['type']]] . state_optional;
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          }
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          elseif ($current['type'] == 'TXT' &&
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          stripos($current['txt'], 'v=dkim') === 0 &&
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          stripos($record[2], 'v=dkim') === 0) {
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            preg_match('/v=DKIM1;.*k=rsa;.*p=([^;]*).*/i', $current[$data_field[$current['type']]], $dkim_matches_current);
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            preg_match('/v=DKIM1;.*k=rsa;.*p=([^;]*).*/i', $record[2], $dkim_matches_good);
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						|
            if ($dkim_matches_current[1] == $dkim_matches_good[1]) {
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						|
              $state = state_good;
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						|
            }
 | 
						|
          }
 | 
						|
          elseif ($current['type'] != 'TXT' &&
 | 
						|
          isset($data_field[$current['type']]) && $state != state_good) {
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            $state = state_nomatch;
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						|
            if ($current[$data_field[$current['type']]] == $record[2]) {
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              $state = state_good;
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            }
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          }
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        }
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        unset($current);
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 | 
						|
        if (isset($record[3]) &&
 | 
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        $record[3] == state_optional &&
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        ($state == state_missing || $state == state_nomatch)) {
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          $state = state_optional;
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        }
 | 
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 | 
						|
        if ($state == state_nomatch) {
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          $state = array();
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						|
          foreach ($currents as $current) {
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            $state[] = $current[$data_field[$current['type']]];
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          }
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          $state = implode('<br />', $state);
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        }
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        echo sprintf('
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        <tr>
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          <td>%s</td>
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          <td>%s</td>
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          <td class="dns-found">%s</td>
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          <td class="dns-recommended">%s</td>
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        </tr>', $record[0], $record[1], $record[2], $state);
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        $record[3] = explode('<br />', $state);
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      }
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      unset($record);
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 | 
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      $dns_data = sprintf("\$ORIGIN %s.\n", $domain);
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						|
      foreach ($records as $record) {
 | 
						|
        if ($domain == substr($record[0], -strlen($domain))) {
 | 
						|
          $label = substr($record[0], 0, -strlen($domain)-1);
 | 
						|
          $val = $record[2];
 | 
						|
 | 
						|
          if (strlen($label) == 0) {
 | 
						|
            $label = "@";
 | 
						|
          }
 | 
						|
 | 
						|
          $vals = array();
 | 
						|
          if (strpos($val, "<a") !== FALSE) {
 | 
						|
            if (is_array($record[3]) && count($record[3]) == 1 && $record[3][0] == state_optional) {
 | 
						|
              $record[3][0] = "**TODO**";
 | 
						|
              $label = ';' . $label;
 | 
						|
            }
 | 
						|
            foreach ($record[3] as $val) {
 | 
						|
              $val = str_replace(state_optional, '', $val);
 | 
						|
              $val = str_replace(state_good, '', $val);
 | 
						|
              if (strlen($val) > 0) {
 | 
						|
                $vals[] = sprintf("%s\tIN\t%s\t%s\n", $label, $record[1], $val);
 | 
						|
              }
 | 
						|
            }
 | 
						|
          }
 | 
						|
          else {
 | 
						|
            $vals[] = sprintf("%s\tIN\t%s\t%s\n", $label, $record[1], $val);
 | 
						|
          }
 | 
						|
 | 
						|
          foreach ($vals as $val) {
 | 
						|
            $dns_data .= str_replace($domain, $domain . '.', $val);
 | 
						|
          }
 | 
						|
        }
 | 
						|
      }
 | 
						|
      ?>
 | 
						|
    </table>
 | 
						|
    <a id='download-zonefile' class="btn btn-sm btn-secondary visible-xs-block visible-sm-inline visible-md-inline visible-lg-inline mb-4" style="margin-top:10px" data-zonefile="<?=base64_encode($dns_data);?>" download='<?=$_GET['domain'];?>.txt' type='text/csv'>Download</a>
 | 
						|
    <script>
 | 
						|
      var zonefile_dl_link = document.getElementById('download-zonefile');
 | 
						|
      var zonefile = atob(zonefile_dl_link.getAttribute('data-zonefile'));
 | 
						|
      var data = new Blob([zonefile]);
 | 
						|
      var download_zonefile_link = document.getElementById('download-zonefile');
 | 
						|
      download_zonefile_link.href = URL.createObjectURL(data);
 | 
						|
    </script>
 | 
						|
  </div>
 | 
						|
  <p class="help-block">
 | 
						|
    <sup>1</sup> <?=$lang['diagnostics']['cname_from_a'];?><br />
 | 
						|
    <sup>2</sup> <?=$lang['diagnostics']['optional'];?>
 | 
						|
  </p>
 | 
						|
  <?php
 | 
						|
}
 | 
						|
else {
 | 
						|
  echo "Session invalid";
 | 
						|
  exit();
 | 
						|
}
 | 
						|
?>
 |