From e1ceb050e19c7574bca146a8da7047ee4ff456b5 Mon Sep 17 00:00:00 2001
From: Marius Burkard <m.burkard@pixcept.de>
Date: Sun, 10 Jul 2016 05:02:35 -0400
Subject: [PATCH] Merge branch 'stable-3.1'
---
interface/lib/classes/validate_dkim.inc.php | 92 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 92 insertions(+), 0 deletions(-)
diff --git a/interface/lib/classes/validate_dkim.inc.php b/interface/lib/classes/validate_dkim.inc.php
new file mode 100644
index 0000000..443fe76
--- /dev/null
+++ b/interface/lib/classes/validate_dkim.inc.php
@@ -0,0 +1,92 @@
+<?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.
+
+ @author Florian Schaal, info@schaal-24.de
+ @copyright Florian Schaal, info@schaal-24.de
+ */
+
+
+class validate_dkim {
+
+ function get_error($errmsg) {
+ global $app;
+ if(isset($app->tform->wordbook[$errmsg])) {
+ return $app->tform->wordbook[$errmsg]."<br>\r\n";
+ } else {
+ return $errmsg."<br>\r\n";
+ }
+ }
+
+
+ /**
+ * Validator function for private DKIM-Key
+ */
+ function check_private_key($field_name, $field_value, $validator) {
+ $dkim_enabled=$_POST['dkim'];
+ if ($dkim_enabled == 'y') {
+ if (empty($field_value)) return $this->get_error($validator['errmsg']);
+ exec('echo '.escapeshellarg($field_value).'|openssl rsa -check', $output, $result);
+ if($result != 0) return $this->get_error($validator['errmsg']);
+ }
+ }
+
+ /**
+ * Check function for DNS-Template
+ */
+ function check_template($field_name, $field_value, $validator) {
+ $dkim=false;
+ if(is_array($field_value) && !empty($field_value)){
+ foreach($field_value as $field ) { if($field == 'DKIM') $dkim=true; }
+ if ($dkim && $field_value[0]!='DOMAIN') return $this->get_error($validator['errmsg']);
+ }
+ }
+
+
+ /**
+ * Validator function for $_POST
+ *
+ * @return boolean - true if $POST contains a real key-file
+ */
+ function validate_post($key, $value, $dkim_strength) {
+ $value=str_replace(array("\n", "-----BEGIN RSA PRIVATE KEY-----", "-----END RSA PRIVATE KEY-----", " "), "", $value);
+ switch ($key) {
+ case 'public':
+ if (preg_match("/(^-----BEGIN PUBLIC KEY-----)[a-zA-Z0-9\r\n\/\+=]{1,221}(-----END PUBLIC KEY-----(\n|\r)?$)/", $value) === 1) { return true; } else { return false; }
+ break;
+ case 'private':
+ if ( $dkim_strength == 1024 ) $range = "{812,816}";
+ if ( $dkim_strength == 2048 ) $range = "{1588,1592}";
+ if ( $dkim_strength == 4096 ) $range = "{3132,3136}";
+ if ( preg_match("/^[a-zA-Z0-9\/\+=]".$range."$/", $value ) === 1) return true; else return false;
+ break;
+ }
+ }
+
+}
--
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