From 3412e50b54e3daac8745234e21ab6e72be0ed165 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Wed, 04 Jun 2014 11:20:33 -0400
Subject: [PATCH] Fix attachment menu structure and aria-attributes

---
 program/lib/Roundcube/rcube_message.php |   44 +++++++++++++++++++++++++++-----------------
 1 files changed, 27 insertions(+), 17 deletions(-)

diff --git a/program/lib/Roundcube/rcube_message.php b/program/lib/Roundcube/rcube_message.php
index 0d33ea4..a648ae7 100644
--- a/program/lib/Roundcube/rcube_message.php
+++ b/program/lib/Roundcube/rcube_message.php
@@ -74,6 +74,11 @@
      */
     function __construct($uid, $folder = null)
     {
+        // decode combined UID-folder identifier
+        if (preg_match('/^\d+-.+/', $uid)) {
+            list($uid, $folder) = explode('-', $uid, 2);
+        }
+
         $this->uid  = $uid;
         $this->app  = rcube::get_instance();
         $this->storage = $this->app->get_storage();
@@ -195,8 +200,6 @@
     /**
      * Determine if the message contains a HTML part. This must to be
      * a real part not an attachment (or its part)
-     * This must to be
-     * a real part not an attachment (or its part)
      *
      * @param bool $enriched Enables checking for text/enriched parts too
      *
@@ -213,15 +216,19 @@
                 }
 
                 $level = explode('.', $part->mime_id);
+                $depth = count($level);
 
-                // Check if the part belongs to higher-level's alternative/related
+                // Check if the part belongs to higher-level's multipart part
+                // this can be alternative/related/signed/encrypted or mixed
                 while (array_pop($level) !== null) {
-                    if (!count($level)) {
+                    $parent_depth = count($level);
+                    if (!$parent_depth) {
                         return true;
                     }
 
                     $parent = $this->mime_parts[join('.', $level)];
-                    if ($parent->mimetype != 'multipart/alternative' && $parent->mimetype != 'multipart/related') {
+                    if (!preg_match('/^multipart\/(alternative|related|signed|encrypted|mixed)$/', $parent->mimetype)
+                        || ($parent->mimetype == 'multipart/mixed' && $parent_depth < $depth - 1)) {
                         continue 2;
                     }
                 }
@@ -435,17 +442,24 @@
                     continue;
                 }
 
+                // We've encountered (malformed) messages with more than
+                // one text/plain or text/html part here. There's no way to choose
+                // which one is better, so we'll display first of them and add
+                // others as attachments (#1489358)
+
                 // check if sub part is
                 if ($is_multipart)
                     $related_part = $p;
-                else if ($sub_mimetype == 'text/plain')
+                else if ($sub_mimetype == 'text/plain' && !$plain_part)
                     $plain_part = $p;
-                else if ($sub_mimetype == 'text/html')
+                else if ($sub_mimetype == 'text/html' && !$html_part)
                     $html_part = $p;
-                else if ($sub_mimetype == 'text/enriched')
+                else if ($sub_mimetype == 'text/enriched' && !$enriched_part)
                     $enriched_part = $p;
-                else
-                    $attach_part = $p;
+                else {
+                    // add unsupported/unrecognized parts to attachments list
+                    $this->attachments[] = $sub_part;
+                }
             }
 
             // parse related part (alternative part could be in here)
@@ -486,11 +500,6 @@
 
                 $this->parts[] = $c;
             }
-
-            // add unsupported/unrecognized parts to attachments list
-            if ($attach_part) {
-                $this->attachments[] = $structure->parts[$attach_part];
-            }
         }
         // this is an ecrypted message -> create a plaintext body with the according message
         else if ($mimetype == 'multipart/encrypted') {
@@ -528,8 +537,9 @@
                     $part_mimetype = $mail_part->real_mimetype;
                     list($primary_type, $secondary_type) = explode('/', $part_mimetype);
                 }
-                else
-                    $part_mimetype = $mail_part->mimetype;
+                else {
+                    $part_mimetype = $part_orig_mimetype = $mail_part->mimetype;
+                  }
 
                 // multipart/alternative
                 if ($primary_type == 'multipart') {

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