From 715c7961ba8ff72fe40720bb4feaa7865e57e8b9 Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Tue, 01 Mar 2011 16:22:52 -0500
Subject: [PATCH] Don't do exact matches when searching for existing email records

---
 program/lib/washtml.php |   17 ++++++++++++-----
 1 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/program/lib/washtml.php b/program/lib/washtml.php
index 923c97e..0f8dc7e 100644
--- a/program/lib/washtml.php
+++ b/program/lib/washtml.php
@@ -75,6 +75,7 @@
  * - changed $ignore_elements behaviour
  * - added RFC2397 support
  * - base URL support
+ * - invalid HTML comments removal before parsing
  */
 
 class washtml
@@ -89,7 +90,7 @@
   static $html_attribs = array('name', 'class', 'title', 'alt', 'width', 'height', 'align', 'nowrap', 'col', 'row', 'id', 'rowspan', 'colspan', 'cellspacing', 'cellpadding', 'valign', 'bgcolor', 'color', 'border', 'bordercolorlight', 'bordercolordark', 'face', 'marginwidth', 'marginheight', 'axis', 'border', 'abbr', 'char', 'charoff', 'clear', 'compact', 'coords', 'vspace', 'hspace', 'cellborder', 'size', 'lang', 'dir');  
 
   /* Block elements which could be empty but cannot be returned in short form (<tag />) */
-  static $block_elements = array('div', 'p', 'pre', 'blockquote', 'a', 'font');
+  static $block_elements = array('div', 'p', 'pre', 'blockquote', 'a', 'font', 'center', 'table', 'ul', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'ol', 'dl', 'strong', 'i', 'b');
   
   /* State for linked objects in HTML */
   public $extlinks = false;
@@ -155,10 +156,11 @@
               else
                 $this->extlinks = true;
             }
-            else if (preg_match('/^data:.+/i', $url)) { // RFC2397
-              $value .= ' url('.htmlspecialchars($url, ENT_QUOTES).')';
+            else if (preg_match('/^data:.+/i', $match[2])) { // RFC2397
+              $value .= ' url('.htmlspecialchars($match[2], ENT_QUOTES).')';
             }
-          } else if ($match[0] != 'url' && $match[0] != 'rbg') //whitelist ?
+          }
+          else if ($match[0] != 'url' && $match[0] != 'rbg') //whitelist ?
             $value .= ' ' . $match[0];
           $str = substr($str, strlen($match[0]));
         }
@@ -225,7 +227,9 @@
         else if (isset($this->_html_elements[$tagName])) {
           $content = $this->dumpHtml($node);
           $dump .= '<' . $tagName . $this->wash_attribs($node) .
-            ($content != '' || isset($this->_block_elements[$tagName]) ? ">$content</$tagName>" : ' />');
+            // create closing tag for block elements, but also for elements
+            // with content or with some attributes (eg. style, class) (#1486812)
+            ($content != '' || $node->hasAttributes() || isset($this->_block_elements[$tagName]) ? ">$content</$tagName>" : ' />');
         }
         else if (isset($this->_ignore_elements[$tagName])) {
           $dump .= '<!-- ' . htmlspecialchars($tagName, ENT_QUOTES) . ' not allowed -->';
@@ -268,6 +272,9 @@
     else
       $this->config['base_url'] = '';
 
+    // Remove invalid HTML comments (#1487759)
+    $html = preg_replace('/<!--[^->]*>/', '', $html);
+
     @$node->loadHTML($html);
     return $this->dumpHtml($node);
   }

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