From a3644638aaf0418598196a870204e0b632a4c8ad Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Fri, 17 Apr 2015 06:28:40 -0400
Subject: [PATCH] Allow preference sections to define CSS class names

---
 program/steps/mail/get.inc |   15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/program/steps/mail/get.inc b/program/steps/mail/get.inc
index 256af52..831026e 100644
--- a/program/steps/mail/get.inc
+++ b/program/steps/mail/get.inc
@@ -22,7 +22,9 @@
 
 // show loading page
 if (!empty($_GET['_preload'])) {
-    $url = preg_replace('/([&?]+)_preload=/', '\\1_mimewarning=1&_embed=', $_SERVER['REQUEST_URI']);
+    $_get = $_GET + array('_mimewarning' => 1, '_embed' => 1);
+    unset($_get['_preload']);
+    $url = $RCMAIL->url($_get);
     $message = $RCMAIL->gettext('loadingdata');
 
     header('Content-Type: text/html; charset=' . RCUBE_CHARSET);
@@ -85,7 +87,7 @@
         // render thumbnail image if not done yet
         if (!is_file($cache_file)) {
             if ($fp = fopen(($orig_name = $cache_basename . '.orig.' . $ext), 'w')) {
-                $MESSAGE->get_part_content($part->mime_id, $fp);
+                $MESSAGE->get_part_body($part->mime_id, false, 0, $fp);
                 fclose($fp);
 
                 $image = new rcube_image($orig_name);
@@ -138,7 +140,7 @@
             $file_extension = strtolower(pathinfo($part->filename, PATHINFO_EXTENSION));
 
             // 1. compare filename suffix with expected suffix derived from mimetype
-            $valid = $file_extension && in_array($file_extension, (array)$extensions) || !empty($_REQUEST['_mimeclass']);
+            $valid = $file_extension && in_array($file_extension, (array)$extensions) || empty($extensions) || !empty($_REQUEST['_mimeclass']);
 
             // 2. detect the real mimetype of the attachment part and compare it with the stated mimetype and filename extension
             if ($valid || !$file_extension || $mimetype == 'application/octet-stream' || stripos($mimetype, 'text/') === 0) {
@@ -164,7 +166,7 @@
                 else {
                     // get valid file extensions
                     $extensions      = rcube_mime::get_mime_extensions($real_mimetype);
-                    $valid_extension = (!$file_extension || in_array($file_extension, (array)$extensions));
+                    $valid_extension = !$file_extension || empty($extensions) || in_array($file_extension, (array)$extensions);
                 }
 
                 // fix mimetype for images wrongly declared as octet-stream
@@ -172,7 +174,10 @@
                     $mimetype = $real_mimetype;
                 }
 
-                $valid = ($real_mimetype == $mimetype && $valid_extension);
+                // "fix" real mimetype the same way the original is before comparison
+                $real_mimetype = rcmail_fix_mimetype($real_mimetype);
+
+                $valid = $real_mimetype == $mimetype && $valid_extension;
             }
             else {
                 $real_mimetype = $mimetype;

--
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