From bd0551b22076b82a6d49e9f7a2b2e0c90a1b2326 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Fri, 05 Feb 2016 07:25:27 -0500
Subject: [PATCH] Secure also downloads of addressbook exports, managesieve script exports and Enigma keys exports

---
 program/lib/Roundcube/rcube_string_replacer.php |   31 ++++++++++++++++---------------
 1 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/program/lib/Roundcube/rcube_string_replacer.php b/program/lib/Roundcube/rcube_string_replacer.php
index 85ccc95..eb281ee 100644
--- a/program/lib/Roundcube/rcube_string_replacer.php
+++ b/program/lib/Roundcube/rcube_string_replacer.php
@@ -1,6 +1,6 @@
 <?php
 
-/*
+/**
  +-----------------------------------------------------------------------+
  | This file is part of the Roundcube Webmail client                     |
  | Copyright (C) 2009-2012, The Roundcube Dev Team                       |
@@ -24,16 +24,16 @@
  */
 class rcube_string_replacer
 {
-    public static $pattern = '/##str_replacement\{([0-9]+)\}##/';
+    public static $pattern = '/##str_replacement_(\d+)##/';
     public $mailto_pattern;
     public $link_pattern;
     public $linkref_index;
     public $linkref_pattern;
 
-    private $values = array();
-    private $options = array();
-    private $linkrefs = array();
-    private $urls = array();
+    protected $values   = array();
+    protected $options  = array();
+    protected $linkrefs = array();
+    protected $urls     = array();
 
 
     function __construct($options = array())
@@ -42,24 +42,24 @@
         // Support unicode/punycode in top-level domain part
         $utf_domain = '[^?&@"\'\\/()<>\s\r\t\n]+\\.?([^\\x00-\\x2f\\x3b-\\x40\\x5b-\\x60\\x7b-\\x7f]{2,}|xn--[a-zA-Z0-9]{2,})';
         $url1       = '.:;,';
-        $url2       = 'a-zA-Z0-9%=#$@+?|!&\\/_~\\[\\]\\(\\){}\*-';
+        $url2       = 'a-zA-Z0-9%=#$@+?|!&\\/_~\\[\\]\\(\\){}\*\x80-\xFE-';
 
-        $this->link_pattern = "/([\w]+:\/\/|\W[Ww][Ww][Ww]\.|^[Ww][Ww][Ww]\.)($utf_domain([$url1]*[$url2]+)*)/";
-        $this->mailto_pattern = "/("
+        $this->options         = $options;
+        $this->linkref_index   = '/\[([^\]#]+)\](:?\s*##str_replacement_(\d+)##)/';
+        $this->linkref_pattern = '/\[([^\]#]+)\]/';
+        $this->link_pattern    = "/([\w]+:\/\/|\W[Ww][Ww][Ww]\.|^[Ww][Ww][Ww]\.)($utf_domain([$url1]*[$url2]+)*)/";
+        $this->mailto_pattern  = "/("
             ."[-\w!\#\$%&\'*+~\/^`|{}=]+(?:\.[-\w!\#\$%&\'*+~\/^`|{}=]+)*"  // local-part
             ."@$utf_domain"                                                 // domain-part
             ."(\?[$url1$url2]+)?"                                           // e.g. ?subject=test...
             .")/";
-        $this->linkref_index = '/\[([^\]#]+)\](:?\s*##str_replacement\{(\d+)\}##)/';
-        $this->linkref_pattern = '/\[([^\]#]+)\]/';
-
-        $this->options = $options;
     }
 
     /**
      * Add a string to the internal list
      *
-     * @param string String value 
+     * @param string String value
+     *
      * @return int Index of value for retrieval
      */
     public function add($str)
@@ -74,7 +74,7 @@
      */
     public function get_replacement($i)
     {
-        return '##str_replacement{'.$i.'}##';
+        return '##str_replacement_' . $i . '##';
     }
 
     /**
@@ -141,6 +141,7 @@
      * Callback function used to build mailto: links around e-mail strings
      *
      * @param array Matches result from preg_replace_callback
+     *
      * @return int Index of saved string value
      */
     public function mailto_callback($matches)

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