Page MenuHomeWMGMC Issues
Files F15800

dns_diagnostics.php
No OneTemporary
Actions

dns_diagnostics.php
View Options

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

File Metadata

Mime Type
text/x-php
Expires
9月 9 Tue, 5:38 AM (7 h, 31 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
5292
默认替代文本
dns_diagnostics.php (14 KB)

Event Timeline

WMGMC Technical Group