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 | 163 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 163 insertions(+), 0 deletions(-)
diff --git a/interface/web/mail/mail_domain_dkim_create.php b/interface/web/mail/mail_domain_dkim_create.php
new file mode 100644
index 0000000..565546c
--- /dev/null
+++ b/interface/web/mail/mail_domain_dkim_create.php
@@ -0,0 +1,163 @@
+<?php
+
+/**
+ Copyright (c) 2007 - 2013, Till Brehm, projektfarm Gmbh
+ Copyright (c) 2013, Florian Schaal, info@schaal-24.de
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without modification,
+ are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ * Neither the name of ISPConfig nor the names of its contributors
+ may be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/**
+* 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 keys, selector, and dns-record
+*/
+
+
+require_once '../../lib/config.inc.php';
+require_once '../../lib/app.inc.php';
+require_once '../../lib/classes/validate_dkim.inc.php';
+
+//* Check permissions for module
+$app->auth->check_module_permissions('mail');
+
+header('Content-Type: text/xml; charset=utf-8');
+header('Cache-Control: must-revalidate, pre-check=0, no-store, no-cache, max-age=0, post-check=0');
+
+function validate_domain($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;
+}
+
+/**
+ * This function formats the public-key
+ * @param array $pubkey
+ * @return string public-key
+ */
+function pub_key($pubkey) {
+ $public_key='';
+ foreach($pubkey as $values) $public_key=$public_key.$values."\n";
+ return $public_key;
+}
+
+function get_public_key($private_key, $dkim_strength) {
+ $validate_dkim=new validate_dkim ();
+ if($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';
+ }
+ return $public_key;
+}
+
+/**
+ * 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 $selector;
+}
+
+$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>".$public_key."</publickey>\n";
+if ( validate_domain($_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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