From 5ca959fa688255a8de61f89fe2751eb4d24a6912 Mon Sep 17 00:00:00 2001
From: Florian Schaal <florian@schaal-24.de>
Date: Tue, 22 Mar 2016 09:22:07 -0400
Subject: [PATCH] fixed typo

---
 interface/lib/classes/validate_dkim.inc.php |  106 ++++++++++++++++++++++++++++++++++------------------
 1 files changed, 69 insertions(+), 37 deletions(-)

diff --git a/interface/lib/classes/validate_dkim.inc.php b/interface/lib/classes/validate_dkim.inc.php
index fccd457..443fe76 100644
--- a/interface/lib/classes/validate_dkim.inc.php
+++ b/interface/lib/classes/validate_dkim.inc.php
@@ -1,60 +1,92 @@
 <?php
 
-/*
-Copyright (c) 2007 - 2013, Till Brehm, projektfarm Gmbh
-Copyright (c) 2013, Florian Schaal, info@schaal-24.de
-All rights reserved.
+/**
+ 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:
+ 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.
+ * 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 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[$errmsg])) {
+		if(isset($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, $validator) {
+	}
+
+
+	/**
+	 * Validator function for private DKIM-Key
+	 */
+	function check_private_key($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 "'.$field_value.'"|openssl rsa -check',$output,$result);
+			exec('echo '.escapeshellarg($field_value).'|openssl rsa -check', $output, $result);
 			if($result != 0) return $this->get_error($validator['errmsg']);
 		}
 	}
 
-	/* Validator function for DKIM Path */
-	function check_dkim_path($field_name, $field_value, $validator) {
-		if(empty($field_value)) return $this->get_error($validator['errmsg']);
-		if (substr(sprintf('%o', fileperms($field_value)),-3) <= 600)
-			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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