From fbe54043cf598b19a753dc2b21a7ed558d23fd15 Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Thu, 18 Aug 2011 13:40:07 -0400
Subject: [PATCH] Fix folders drop-down list: descend into root folder (e.g. INBOX) even if part of the exception list

---
 program/include/rcube_message.php |   50 +++++++++++++++++++++++++++++++++++++++-----------
 1 files changed, 39 insertions(+), 11 deletions(-)

diff --git a/program/include/rcube_message.php b/program/include/rcube_message.php
index 790f8d9..4f9a2f2 100644
--- a/program/include/rcube_message.php
+++ b/program/include/rcube_message.php
@@ -5,7 +5,7 @@
  | program/include/rcube_message.php                                     |
  |                                                                       |
  | This file is part of the Roundcube Webmail client                     |
- | Copyright (C) 2008-2010, Roundcube Dev. - Switzerland                 |
+ | Copyright (C) 2008-2010, The Roundcube Dev Team                       |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
  | PURPOSE:                                                              |
@@ -426,7 +426,7 @@
                         $mail_part->type = 'content';
                         $this->parts[] = $mail_part;
                     }
-          
+
                     // list as attachment as well
                     if (!empty($mail_part->filename))
                         $this->attachments[] = $mail_part;
@@ -473,11 +473,26 @@
                     // attachment encapsulated within message/rfc822 part needs further decoding (#1486743)
                     else if ($part_orig_mimetype == 'message/rfc822') {
                         $this->parse_structure($mail_part, true);
+
+                        // list as attachment as well (mostly .eml)
+                        if (!empty($mail_part->filename))
+                            $this->attachments[] = $mail_part;
                     }
-                    // is a regular attachment (content-type name regexp according to RFC4288.4.2)
+                    // regular attachment with valid content type
+                    // (content-type name regexp according to RFC4288.4.2)
                     else if (preg_match('/^[a-z0-9!#$&.+^_-]+\/[a-z0-9!#$&.+^_-]+$/i', $part_mimetype)) {
                         if (!$mail_part->filename)
                             $mail_part->filename = 'Part '.$mail_part->mime_id;
+
+                        $this->attachments[] = $mail_part;
+                    }
+                    // attachment with invalid content type
+                    // replace malformed content type with application/octet-stream (#1487767)
+                    else if ($mail_part->filename) {
+                        $mail_part->ctype_primary   = 'application';
+                        $mail_part->ctype_secondary = 'octet-stream';
+                        $mail_part->mimetype        = 'application/octet-stream';
+
                         $this->attachments[] = $mail_part;
                     }
                 }
@@ -486,6 +501,7 @@
             // if this was a related part try to resolve references
             if ($mimetype == 'multipart/related' && sizeof($this->inline_parts)) {
                 $a_replaces = array();
+                $img_regexp = '/^image\/(gif|jpe?g|png|tiff|bmp|svg)/';
 
                 foreach ($this->inline_parts as $inline_object) {
                     $part_url = $this->get_part_url($inline_object->mime_id);
@@ -494,13 +510,23 @@
                     if ($inline_object->content_location) {
                         $a_replaces[$inline_object->content_location] = $part_url;
                     }
-                    // MS Outlook sends sometimes non-related attachments as related
-                    // In this case multipart/related message has only one text part
-                    // We'll add all such attachments to the attachments list
-                    if (!isset($got_html_part) && empty($inline_object->content_id)
-                        && !empty($inline_object->filename)
-                    ) {
-                        $this->attachments[] = $inline_object;
+
+                    if (!empty($inline_object->filename)) {
+                        // MS Outlook sends sometimes non-related attachments as related
+                        // In this case multipart/related message has only one text part
+                        // We'll add all such attachments to the attachments list
+                        if (!isset($got_html_part) && empty($inline_object->content_id)) {
+                            $this->attachments[] = $inline_object;
+                        }
+                        // MS Outlook sometimes also adds non-image attachments as related
+                        // We'll add all such attachments to the attachments list
+                        // Warning: some browsers support pdf in <img/>
+                        else if (!preg_match($img_regexp, $inline_object->mimetype)) {
+                            $this->attachments[] = $inline_object;
+                        }
+                        // @TODO: we should fetch HTML body and find attachment's content-id
+                        // to handle also image attachments without reference in the body
+                        // @TODO: should we list all image attachments in text mode?
                     }
                 }
 
@@ -700,7 +726,9 @@
                     $line  = $prefix . rc_wordwrap($line, $length - $level - 2, " \r\n$prefix ");
                 }
                 else if ($line) {
-                    $line = ' ' . rc_wordwrap(rtrim($line), $length - 2, " \r\n ");
+                    $line = rc_wordwrap(rtrim($line), $length - 2, " \r\n");
+                    // space-stuffing
+                    $line = preg_replace('/(^|\r\n)(From| |>)/', '\\1 \\2', $line);
                 }
 
                 $text[$idx] = $line;

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