From dee987b263b021b990ea4c62cb15be47c6d61fb5 Mon Sep 17 00:00:00 2001
From: Marius Cramer <m.cramer@pixcept.de>
Date: Mon, 05 Jan 2015 08:30:12 -0500
Subject: [PATCH] Merge branch 'master' into 'master'
---
interface/web/mail/mail_domain_dkim_create.php | 123 ++++++++++++++++++++++++++++------------
1 files changed, 86 insertions(+), 37 deletions(-)
diff --git a/interface/web/mail/mail_domain_dkim_create.php b/interface/web/mail/mail_domain_dkim_create.php
index 2a486a7..565546c 100644
--- a/interface/web/mail/mail_domain_dkim_create.php
+++ b/interface/web/mail/mail_domain_dkim_create.php
@@ -32,7 +32,7 @@
/**
* This script is invoked by interface/js/mail_domain_dkim.js
* to generate or show the DKIM Private-key and to show the Private-key.
-* returns DKIM Private-Key and DKIM Public-Key
+* returns DKIM keys, selector, and dns-record
*/
@@ -40,29 +40,20 @@
require_once '../../lib/app.inc.php';
require_once '../../lib/classes/validate_dkim.inc.php';
-$validate_dkim=new validate_dkim ();
-
//* Check permissions for module
$app->auth->check_module_permissions('mail');
header('Content-Type: text/xml; charset=utf-8');
header('Cache-Control: must-revalidate, pre-check=0, no-store, no-cache, max-age=0, post-check=0');
-/**
- * This function fix PHP's messing up POST input containing characters space, dot,
- * open square bracket and others to be compatible with with the deprecated register_globals
- * @return array POST
- */
-function getRealPOST() {
- $pairs = explode("&", file_get_contents("php://input"));
- $vars = array();
- foreach ($pairs as $pair) {
- $nv = explode("=", $pair, 2);
- $name = urldecode($nv[0]);
- $value = $nv[1];
- $vars[$name] = $value;
- }
- return $vars;
+function validate_domain($domain) {
+ $regex = '/^[\w\.\-]{2,255}\.[a-zA-Z0-9\-]{2,30}$/';
+ if ( preg_match($regex, $domain) === 1 ) return true; else return false;
+}
+
+function validate_selector($selector) {
+ $regex = '/^[a-z0-9]{0,63}$/';
+ if ( preg_match($regex, $selector) === 1 ) return true; else return false;
}
/**
@@ -76,11 +67,10 @@
return $public_key;
}
-function get_public_key($private_key) {
- require_once('../../lib/classes/validate_dkim.inc.php');
+function get_public_key($private_key, $dkim_strength) {
$validate_dkim=new validate_dkim ();
- if($validate_dkim->validate_post('private',$private_key)) { /* validate the $_POST-value */
- exec('echo '.escapeshellarg($private_key).'|openssl rsa -pubout -outform PEM',$pubkey,$result);
+ if($validate_dkim->validate_post('private', $private_key, $dkim_strength)) { /* validate the $_POST-value */
+ exec('echo '.escapeshellarg($private_key).'|openssl rsa -pubout -outform PEM 2> /dev/null',$pubkey,$result);
$public_key=pub_key($pubkey);
} else {
$public_key='invalid key';
@@ -88,27 +78,86 @@
return $public_key;
}
-$_POST=getRealPOST();
-
-switch ($_POST['action']) {
- case 'create': /* create DKIM Private-key */
- exec('openssl rand -out /usr/local/ispconfig/server/temp/random-data.bin 4096', $output, $result);
- exec('openssl genrsa -rand /usr/local/ispconfig/server/temp/random-data.bin 1024', $privkey, $result);
- unlink("/usr/local/ispconfig/server/temp/random-data.bin");
- foreach($privkey as $values) $private_key=$private_key.$values."\n";
- break;
-
- case 'show': /* show the DNS-Record onLoad */
- $private_key=$_POST['pkey'];
- break;
+/**
+ * This function updates the selector if a new key-pair was created
+ * and the selector is already used in the dns-record
+ * @param string $old_selector
+ * @return string selector
+ */
+function new_selector ($old_selector, $domain, $client_id = -1) {
+ global $app;
+ //* validate post-values
+ if ( validate_domain($domain) && validate_selector($old_selector) ) {
+ //* get active selectors from dns
+ $soa_rec = $app->db->queryOneRecord("SELECT * FROM dns_soa WHERE active = 'Y' AND origin = ?");
+ if ( isset($soa_rec) && !empty($soa_rec) ) {
+ //* check for a dkim-record in the dns?
+ $dns_data = $app->db->queryOneRecord("SELECT name FROM dns_rr WHERE name = ? AND active = 'Y''", $old_selector.'._domainkey.'.$domain.'.');
+ if ( !empty($dns_data) ){
+ $selector = str_replace( '._domainkey.'.$domain.'.', '', $dns_data['name']);
+ } else {
+ }
+ } else { //* no dns-zone found - check for existing mail-domain to create a new selector (we need this if a external dns is used)
+ if ( $client_id >= 0 ) {
+ $sql = "SELECT * from mail_domain WHERE dkim = 'y' AND domain = ? AND dkim_selector = ?";
+ $maildomain = $app->db->queryOneRecord($sql, $domain, $old_selector);
+ if ( !empty($maildomain) ) {
+ $selector = $maildomain['selector'];
+ }
+ }
+ }
+ if ( $old_selector == $selector) {
+ $selector = substr($old_selector, 0, 53) . time(); //* add unix-timestamp to delimiter to allow old and new key in the dns
+ } else {
+ $selector = $old_selector;
+ }
+ } else {
+ $selector = 'invalid domain or selector';
+ }
+ return $selector;
}
-$public_key=get_public_key($private_key);
+$client_id = $app->functions->intval($_POST['client_id']);
+
+//* get dkim-strength for server_id
+$sql = "SELECT server_id from mail_domain WHERE domain = ?";
+$mail_server = $app->db->queryOneRecord($sql, $_POST['domain']);
+if ( is_array($mail_server) ) { //* we are adding an existing mail-domain
+ $mail_server_id = $app->functions->intval( $mail_server['server_id'] );
+} else {
+ $sql = "SELECT default_mailserver FROM client WHERE client_id = ?";
+ $mail_server = $app->db->queryOneRecord($sql, $client_id);
+ $mail_server_id = $app->functions->intval( $mail_server['default_mailserver'] );
+}
+unset($mail_server);
+$mail_config = $app->getconf->get_server_config($mail_server_id, 'mail');
+$dkim_strength = $app->functions->intval($mail_config['dkim_strength']);
+unset($mail_config);
+
+if ( empty($dkim_strength) ) $dkim_strength = 2048;
+
+$rnd_val = $dkim_strength * 10;
+exec('openssl rand -out ../../temp/random-data.bin '.$rnd_val.' 2> /dev/null', $output, $result);
+exec('openssl genrsa -rand ../../temp/random-data.bin '.$dkim_strength.' 2> /dev/null', $privkey, $result);
+unlink("../../temp/random-data.bin");
+foreach($privkey as $values) $private_key=$private_key.$values."\n";
+//* check the selector for updated dkim-settings only
+if ( isset($_POST['dkim_public']) && !empty($_POST['dkim_public']) ) $selector = new_selector($_POST['dkim_selector'], $_POST['domain'], $client_id);
+
+if ( !isset($public_key) ) $public_key=get_public_key($private_key, $dkim_strength);
+
$dns_record=str_replace(array('-----BEGIN PUBLIC KEY-----','-----END PUBLIC KEY-----',"\r","\n"),'',$public_key);
+
+if ( !isset($selector) ) {
+ if ( validate_selector($_POST['dkim_selector']) ) $selector=$_POST['dkim_selector'];
+}
echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
echo "<formatname>\n";
+echo "<selector>".$selector."</selector>\n";
echo "<privatekey>".$private_key."</privatekey>\n";
echo "<publickey>".$public_key."</publickey>\n";
-echo "<dns_record>v=DKIM1; t=s; p=".$dns_record."</dns_record>\n";
+if ( validate_domain($_POST['domain']) ) {
+ echo '<dns_record>'.$selector.'._domainkey.'.$_POST['domain'].'. 3600 TXT "v=DKIM1; t=s; p='.$dns_record.'"</dns_record>';
+}
echo "</formatname>\n";
?>
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