From 4b484710ee367150989cd1b939a04111b8b5a923 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Mon, 03 Sep 2012 13:01:50 -0400
Subject: [PATCH] Fix displaying all headers when they contain malformed characters (#1488666)

---
 program/steps/mail/headers.inc |   53 ++++++++++++++++++++++++++++++-----------------------
 1 files changed, 30 insertions(+), 23 deletions(-)

diff --git a/program/steps/mail/headers.inc b/program/steps/mail/headers.inc
index 946a688..3bb087a 100644
--- a/program/steps/mail/headers.inc
+++ b/program/steps/mail/headers.inc
@@ -3,9 +3,12 @@
  +-----------------------------------------------------------------------+
  | program/steps/mail/headers.inc                                        |
  |                                                                       |
- | This file is part of the RoundCube Webmail client                     |
- | Copyright (C) 2005-2007, RoundCube Dev. - Switzerland                 |
- | Licensed under the GNU GPL                                            |
+ | This file is part of the Roundcube Webmail client                     |
+ | Copyright (C) 2005-2007, The Roundcube Dev Team                       |
+ |                                                                       |
+ | Licensed under the GNU General Public License version 3 or            |
+ | any later version with exceptions for skins & plugins.                |
+ | See the README file for a full license statement.                     |
  |                                                                       |
  | PURPOSE:                                                              |
  |   Fetch message headers in raw format for display                     |
@@ -20,28 +23,32 @@
 
 if ($uid = get_input_value('_uid', RCUBE_INPUT_POST))
 {
-  $source = $IMAP->get_raw_headers($uid);
+    $source = $RCMAIL->storage->get_raw_headers($uid);
 
-  if ($source)
-    {
-    $source = htmlspecialchars(trim($source));
-    $source = preg_replace(
-      array(
-        '/\n[\t\s]+/',
-        '/^([a-z0-9_:-]+)/im',
-        '/\r?\n/'
-      ),
-      array(
-        "\n&nbsp;&nbsp;&nbsp;&nbsp;",
-        '<font class="bold">\1</font>',
-        '<br />'
-      ), $source);
-    
-    $OUTPUT->command('set_headers', $source);
-    $OUTPUT->send();
+    if ($source !== false) {
+        $source = trim(rcube_charset::clean($source));
+        $source = htmlspecialchars($source);
+        $source = preg_replace(
+            array(
+                '/\n[\t\s]+/',
+                '/^([a-z0-9_:-]+)/im',
+                '/\r?\n/'
+            ),
+            array(
+                "\n&nbsp;&nbsp;&nbsp;&nbsp;",
+                '<font class="bold">\1</font>',
+                '<br />'
+            ), $source);
+
+        $OUTPUT->command('set_headers', $source);
     }
+    else {
+        $RCMAIL->output->show_message('messageopenerror', 'error');
+    }
+
+    $OUTPUT->send();
 }
-  
+
 exit;
 
-?>
+

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