From bb5d7282855dd83ccdd211cb77d0776dce71468e Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Wed, 12 Dec 2012 02:54:33 -0500
Subject: [PATCH] Use also Envelope-To for identity selection (#1488553)

---
 program/lib/html2text.php |   51 +++++++++++++++++++++++++++++++--------------------
 1 files changed, 31 insertions(+), 20 deletions(-)

diff --git a/program/lib/html2text.php b/program/lib/html2text.php
index 9de2e96..34c7193 100644
--- a/program/lib/html2text.php
+++ b/program/lib/html2text.php
@@ -89,7 +89,7 @@
  *  out that extra spaces should be compressed--a problem addressed with
  *  Marcus Bointon's fixes but that I had not yet incorporated.
  *
- *	Thanks to Daniel Schledermann (http://www.typoconsult.dk/) for
+ *  Thanks to Daniel Schledermann (http://www.typoconsult.dk/) for
  *  suggesting a valuable fix with <a> tag handling.
  *
  *  Thanks to Wojciech Bajon (again!) for suggesting fixes and additions,
@@ -135,6 +135,14 @@
     var $width = 70;
 
     /**
+     *  Target character encoding for output text
+     *
+     *  @var string $charset
+     *  @access public
+     */
+    var $charset = 'UTF-8';
+
+    /**
      *  List of preg* regular expression patterns to search for,
      *  used in conjunction with $replace.
      *
@@ -145,6 +153,7 @@
     var $search = array(
         "/\r/",                                  // Non-legal carriage return
         "/[\n\t]+/",                             // Newlines and tabs
+        '/<head[^>]*>.*?<\/head>/i',             // <head>
         '/<script[^>]*>.*?<\/script>/i',         // <script>s -- which strip_tags supposedly has problems with
         '/<style[^>]*>.*?<\/style>/i',           // <style>s -- which strip_tags supposedly has problems with
         '/<p[^>]*>/i',                           // <P>
@@ -172,6 +181,7 @@
     var $replace = array(
         '',                                     // Non-legal carriage return
         ' ',                                    // Newlines and tabs
+        '',                                     // <head>
         '',                                     // <script>s -- which strip_tags supposedly has problems with
         '',                                     // <style>s -- which strip_tags supposedly has problems with
         "\n\n",                                 // <P>
@@ -200,7 +210,7 @@
     var $ent_search = array(
         '/&(nbsp|#160);/i',                      // Non-breaking space
         '/&(quot|rdquo|ldquo|#8220|#8221|#147|#148);/i',
-		                                         // Double quotes
+                                         // Double quotes
         '/&(apos|rsquo|lsquo|#8216|#8217);/i',   // Single quotes
         '/&gt;/i',                               // Greater-than
         '/&lt;/i',                               // Less-than
@@ -345,7 +355,7 @@
      *  @access public
      *  @return void
      */
-    function html2text( $source = '', $from_file = false, $do_links = true, $width = 75 )
+    function html2text( $source = '', $from_file = false, $do_links = true, $width = 75, $charset = 'UTF-8' )
     {
         if ( !empty($source) ) {
             $this->set_html($source, $from_file);
@@ -354,6 +364,7 @@
         $this->set_base_url();
         $this->_do_links = $do_links;
         $this->width = $width;
+        $this->charset = $charset;
     }
 
     /**
@@ -437,11 +448,11 @@
     function set_base_url( $url = '' )
     {
         if ( empty($url) ) {
-        	if ( !empty($_SERVER['HTTP_HOST']) ) {
-	            $this->url = 'http://' . $_SERVER['HTTP_HOST'];
-        	} else {
-	            $this->url = '';
-	        }
+            if ( !empty($_SERVER['HTTP_HOST']) ) {
+                $this->url = 'http://' . $_SERVER['HTTP_HOST'];
+            } else {
+                $this->url = '';
+            }
         } else {
             // Strip any trailing slashes for consistency (relative
             // URLs may already start with a slash like "/file.html")
@@ -515,7 +526,7 @@
         $text = preg_replace($this->ent_search, $this->ent_replace, $text);
 
         // Replace known html entities
-        $text = html_entity_decode($text, ENT_COMPAT, 'UTF-8');
+        $text = html_entity_decode($text, ENT_QUOTES, $this->charset);
 
         // Remove unknown/unhandled entities (this cannot be done in search-and-replace block)
         $text = preg_replace('/&([a-zA-Z0-9]{2,6}|#[0-9]{2,4});/', '', $text);
@@ -535,7 +546,7 @@
         // for PHP versions >= 4.0.2. Default width is 75
         // If width is 0 or less, don't wrap the text.
         if ( $this->width > 0 ) {
-        	$text = wordwrap($text, $this->width);
+            $text = wordwrap($text, $this->width);
         }
     }
 
@@ -554,16 +565,16 @@
      */
     function _build_link_list( $link, $display )
     {
-	    if (!$this->_do_links || empty($link)) {
-	        return $display;
-	    }
-
-        // Ignored link types
-	    if (preg_match('!^(javascript:|mailto:|#)!i', $link)) {
-		    return $display;
+        if (!$this->_do_links || empty($link)) {
+            return $display;
         }
 
-	    if (preg_match('!^([a-z][a-z0-9.+-]+:)!i', $link)) {
+        // Ignored link types
+        if (preg_match('!^(javascript:|mailto:|#)!i', $link)) {
+            return $display;
+        }
+
+        if (preg_match('!^([a-z][a-z0-9.+-]+:)!i', $link)) {
             $url = $link;
         }
         else {
@@ -730,14 +741,14 @@
      */
     private function _strtoupper($str)
     {
-        $str = html_entity_decode($str, ENT_COMPAT, RCMAIL_CHARSET);
+        $str = html_entity_decode($str, ENT_COMPAT, $this->charset);
 
         if (function_exists('mb_strtoupper'))
             $str = mb_strtoupper($str);
         else
             $str = strtoupper($str);
 
-        $str = htmlspecialchars($str, ENT_COMPAT, RCMAIL_CHARSET);
+        $str = htmlspecialchars($str, ENT_COMPAT, $this->charset);
 
         return $str;
     }

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