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Code Issues Releases Activity

Merge pull request #444 from mkuron/dns

Browse Source 
DNS diagnostics page
This commit is contained in:
André Peters 2017-07-10 07:53:29 +02:00 committed by GitHub
commit b1dddd08e6
4 changed files with 291 additions and 0 deletions
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5
data/web/inc/header.inc.php
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@ -77,6 +77,11 @@
<li<?= (preg_match("/mailbox/i", $_SERVER['REQUEST_URI'])) ? ' class="active"' : ''; ?>><a href="/mailbox.php"><?= $lang['header']['mailboxes']; ?></a></li>
<?php
}
if ($_SESSION['mailcow_cc_role'] == 'admin') {
?>
<li<?= (preg_match("/diagnostics/i", $_SERVER['REQUEST_URI'])) ? ' class="active"' : ''; ?>><a href="/diagnostics.php"><?= $lang['header']['diagnostics']; ?></a></li>
<?php
}
if ($_SESSION['mailcow_cc_role'] != 'admin') {
?>
<li<?= (preg_match("/user/i", $_SERVER['REQUEST_URI'])) ? ' class="active"' : ''; ?>><a href="/user.php"><?= $lang['header']['user_settings']; ?></a></li>

7
data/web/lang/lang.de.php
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@ -214,6 +214,7 @@ $lang['header']['mailcow_settings'] = 'Konfiguration';
$lang['header']['administration'] = 'Administration';
$lang['header']['mailboxes'] = 'Mailboxen';
$lang['header']['user_settings'] = 'Benutzereinstellungen';
$lang['header']['diagnostics'] = 'Diagnose';
$lang['header']['login'] = 'Anmeldung';
$lang['header']['logged_in_as_logout'] = 'Eingeloggt als <b>%s</b> (abmelden)';
$lang['header']['logged_in_as_logout_dual'] = 'Eingeloggt als <b>%s <span class="text-info">[%s]</span></b>';
@ -495,3 +496,9 @@ $lang['admin']['add_forwarding_host'] = 'Weiterleitungs-Host hinzufügen';
$lang['delete']['remove_forwardinghost_warning'] = '<b>Warnung:</b> Sie entfernen den Weiterleitungs-Host <b>%s</b>!';
$lang['success']['forwarding_host_removed'] = "Weiterleitungs-Host %s wurde entfernt";
$lang['success']['forwarding_host_added'] = "Weiterleitungs-Host %s wurde hinzugefügt";
$lang['diagnostics']['dns_records'] = 'DNS-Einträge';
$lang['diagnostics']['dns_records_24hours'] = 'Bitte beachten Sie, dass es bis zu 24 Stunden dauern kann, bis Änderungen an Ihren DNS-Einträgen als aktueller Status auf dieser Seite dargestellt werden. Diese Seite ist nur als Hilfsmittel gedacht, um die korrekten Werte für DNS-Einträge zu anzuzeigen und zu überprüfen, ob die Daten im DNS hinterlegt sind.';
$lang['diagnostics']['dns_records_name'] = 'Name';
$lang['diagnostics']['dns_records_type'] = 'Typ';
$lang['diagnostics']['dns_records_data'] = 'Korrekte Daten';
$lang['diagnostics']['dns_records_status'] = 'Aktueller Status';

7
data/web/lang/lang.en.php
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@ -216,6 +216,7 @@ $lang['header']['mailcow_settings'] = 'Configuration';
$lang['header']['administration'] = 'Administration';
$lang['header']['mailboxes'] = 'Mailboxes';
$lang['header']['user_settings'] = 'User settings';
$lang['header']['diagnostics'] = 'Diagnostics';
$lang['header']['login'] = 'Login';
$lang['header']['logged_in_as_logout'] = 'Logged in as <b>%s</b> (logout)';
$lang['header']['logged_in_as_logout_dual'] = 'Logged in as <b>%s <span class="text-info">[%s]</span></b>';
@ -508,3 +509,9 @@ $lang['admin']['add_forwarding_host'] = 'Add Forwarding Host';
$lang['delete']['remove_forwardinghost_warning'] = '<b>Warning:</b> You are about to remove the forwarding host <b>%s</b>!';
$lang['success']['forwarding_host_removed'] = "Forwarding host %s has been removed";
$lang['success']['forwarding_host_added'] = "Forwarding host %s has been added";
$lang['diagnostics']['dns_records'] = 'DNS Records';
$lang['diagnostics']['dns_records_24hours'] = 'Please note that changes made to DNS may take up to 24 hours to correctly have their current state reflected on this page. It is intended as a way for you to easily see how to configure your DNS records and to check whether all your records are correctly stored in DNS.';
$lang['diagnostics']['dns_records_name'] = 'Name';
$lang['diagnostics']['dns_records_type'] = 'Type';
$lang['diagnostics']['dns_records_data'] = 'Correct Data';
$lang['diagnostics']['dns_records_status'] = 'Current State';

272
diagnostics.php Normal file
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@ -0,0 +1,272 @@
<?php
require_once 'inc/prerequisites.inc.php';
require_once 'inc/spf.inc.php';
function in_net($addr, $net) {
$net = explode('/', $net);
if (count($net) > 1) {
$mask = $net[1];
}
$net = inet_pton($net[0]);
$addr = inet_pton($addr);
$length = strlen($net); // 4 for IPv4, 16 for IPv6
if (strlen($net) != strlen($addr)) {
return false;
}
if (!isset($mask)) {
$mask = $length * 8;
}
$addr_bin = '';
$net_bin = '';
for ($i = 0; $i < $length; ++$i) {
$addr_bin .= str_pad(decbin(ord(substr($addr, $i, $i+1))), 8, '0', STR_PAD_LEFT);
$net_bin .= str_pad(decbin(ord(substr($net, $i, $i+1))), 8, '0', STR_PAD_LEFT);
}
return substr($addr_bin, 0, $mask) == substr($net_bin, 0, $mask);
}
if (isset($_SESSION['mailcow_cc_role']) && $_SESSION['mailcow_cc_role'] == "admin") {
require_once("inc/header.inc.php");
$ch = curl_init('http://ipv4.mailcow.email');
curl_setopt($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);
$ch = curl_init('http://ipv6.mailcow.email');
curl_setopt($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);
}
$records = array();
$records[] = array($mailcow_hostname, 'A', $ip);
$records[] = array($ptr, 'PTR', $mailcow_hostname);
if (!empty($ip6)) {
$records[] = array($mailcow_hostname, 'AAAA', $ip6);
$records[] = array($ptr6, 'PTR', $mailcow_hostname);
}
$domains = mailbox('get', 'domains');
foreach(mailbox('get', 'domains') as $domain) {
$domains = array_merge($domains, mailbox('get', 'alias_domains', $domain));
}
if (!isset($autodiscover_config['sieve'])) {
$autodiscover_config['sieve'] = array('server' => $mailcow_hostname, 'port' => array_pop(explode(':', getenv('SIEVE_PORT'))));
}
$records[] = array('_25._tcp.' . $autodiscover_config['smtp']['server'], 'TLSA', generate_tlsa_digest($autodiscover_config['smtp']['server'], 25, 1));
$records[] = array('_' . $https_port . '._tcp.' . $mailcow_hostname, 'TLSA', generate_tlsa_digest($mailcow_hostname, $https_port));
$records[] = array('_' . $autodiscover_config['pop3']['tlsport'] . '._tcp.' . $autodiscover_config['pop3']['server'], 'TLSA', generate_tlsa_digest($autodiscover_config['pop3']['server'], $autodiscover_config['pop3']['tlsport'], 1));
$records[] = array('_' . $autodiscover_config['imap']['tlsport'] . '._tcp.' . $autodiscover_config['imap']['server'], 'TLSA', generate_tlsa_digest($autodiscover_config['imap']['server'], $autodiscover_config['imap']['tlsport'], 1));
$records[] = array('_' . $autodiscover_config['smtp']['port'] . '._tcp.' . $autodiscover_config['smtp']['server'], 'TLSA', generate_tlsa_digest($autodiscover_config['smtp']['server'], $autodiscover_config['smtp']['port']));
$records[] = array('_' . $autodiscover_config['smtp']['tlsport'] . '._tcp.' . $autodiscover_config['smtp']['server'], 'TLSA', generate_tlsa_digest($autodiscover_config['smtp']['server'], $autodiscover_config['smtp']['tlsport'], 1));
$records[] = array('_' . $autodiscover_config['imap']['port'] . '._tcp.' . $autodiscover_config['imap']['server'], 'TLSA', generate_tlsa_digest($autodiscover_config['imap']['server'], $autodiscover_config['imap']['port']));
$records[] = array('_' . $autodiscover_config['pop3']['port'] . '._tcp.' . $autodiscover_config['pop3']['server'], 'TLSA', generate_tlsa_digest($autodiscover_config['pop3']['server'], $autodiscover_config['pop3']['port']));
$records[] = array('_' . $autodiscover_config['sieve']['port'] . '._tcp.' . $autodiscover_config['sieve']['server'], 'TLSA', generate_tlsa_digest($autodiscover_config['sieve']['server'], $autodiscover_config['sieve']['port'], 1));
foreach ($domains as $domain) {
$records[] = array($domain, 'MX', $mailcow_hostname);
$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', 'v=spf1 mx -all');
$records[] = array('_dmarc.' . $domain, 'TXT', 'v=DMARC1; p=reject', 'v=DMARC1; p=');
if (!empty($dkim = dkim('details', $domain))) {
$records[] = array($dkim['dkim_selector'] . '._domainkey.' . $domain, 'TXT', $dkim['dkim_txt']);
}
$current_records = 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 = 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']);
}
}
define('state_good', "&#10003;");
define('state_missing', "&#x2717;");
define('state_nomatch', "?");
$record_types = array(
'A' => DNS_A,
'AAAA' => DNS_AAAA,
'CNAME' => DNS_CNAME,
'MX' => DNS_MX,
'PTR' => DNS_PTR,
'SRV' => DNS_SRV,
'TXT' => DNS_TXT,
);
$data_field = array(
'A' => 'ip',
'AAAA' => 'ipv6',
'CNAME' => 'target',
'MX' => 'target',
'PTR' => 'target',
'SRV' => 'data',
'TLSA' => 'data',
'TXT' => 'txt',
);
?>
<div class="container">
<h3><?=$lang['diagnostics']['dns_records'];?></h3>
<p><?=$lang['diagnostics']['dns_records_24hours'];?></p>
<div class="table-responsive" id="dnstable">
<table class="table table-striped">
<tr> <th><?=$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]);
$state = state_missing;
if ($record[1] == 'TLSA') {
$currents = dns_get_record($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 {
$currents = dns_get_record($record[0], $record_types[$record[1]]);
if ($record[1] == 'SRV') {
foreach ($currents as &$current) {
if ($current['target'] == '') {
$current['target'] = '.';
$current['port'] = '0';
}
$current['data'] = $current['target'] . ' ' . $current['port'];
}
unset($current);
}
}
if ($record[1] == 'CNAME' && count($currents) == 0) {
// A and AAAA are also valid instead of CNAME
$a = dns_get_record($record[0], DNS_A);
$cname = dns_get_record($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]));
$aaaa = dns_get_record($record[0], DNS_AAAA);
$cname = dns_get_record($record[2], DNS_AAAA);
if (count($aaaa) == 0 || count($cname) == 0 || $aaaa[0]['ipv6'] != $cname[0]['ipv6']) {
$currents[0]['target'] = $aaaa[0]['ipv6'];
}
} else {
$currents = array(array('host' => $record[0], 'class' => 'IN', 'type' => 'CNAME', 'target' => $a[0]['ip']));
}
}
}
foreach ($currents as $current) {
$current['type'] == strtoupper($current['type']);
if ($current['type'] != $record[1])
{
continue;
}
elseif ($current['type'] == 'TXT' && strpos($record[0], '_dmarc.') === 0) {
$state = state_nomatch;
if (strpos($current[$data_field[$current['type']]], $record[3]) === 0)
$state = state_good . ' (' . current[$data_field[$current['type']]] . ')';
}
else if ($current['type'] == 'TXT' && strpos($current['txt'], 'v=spf1') === 0) {
$allowed = get_spf_allowed_hosts($record[0]);
$spf_ok = FALSE;
$spf_ok6 = FALSE;
foreach ($allowed as $net)
{
if (in_net($ip, $net))
$spf_ok = TRUE;
if (in_net($ip6, $net))
$spf_ok6 = TRUE;
}
if ($spf_ok && (empty($ip6) || $spf_ok6))
$state = state_good . ' (' . $current[$data_field[$current['type']]] . ')';
}
else if ($current['type'] != 'TXT' && isset($data_field[$current['type']]) && $state != state_good) {
$state = state_nomatch;
if ($current[$data_field[$current['type']]] == $record[2])
$state = state_good;
}
}
if ($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 style="max-width: 300px; word-break: break-all">%s</td><td style="max-width: 150px; word-break: break-all">%s</td></tr>', $record[0], $record[1], $record[2], $state);
}
?>
</table>
</div>
</div>
<?php
require_once("inc/footer.inc.php");
} else {
header('Location: index.php');
exit();
}
?>