Message with only one non-text part

Hello,

I have a message here, generated by some random Exchange server, with only one mime-part, which is not of type text/* but application/* (excel in this case).

RoundCube fails to display it, because it assumes that messages with only one part should have that part as type text/*. Of course I agree with RoundCube, and I wouldn't be surprised if some RFC does as well, but my customers don't so I try to have RoundCube show that part as an attachment.

I have modified the following in program/steps/mail/func.inc:

@@ -981,6 +982,17 @@ } } }

• else
• {

•  if (($fname = $structure->d_parameters['filename']) ||
  

•      ($fname = $structure->ctype_parameters['name']) ||
  

•      ($fname = $structure->headers['content-description']))
  

•    {
  

•      $structure->filename = rcube_imap::decode_mime_string($fname);
  

•         $structure->mimetype = $message_ctype_primary . '/' .
  

$message_ctype_secondary;

•      $a_attachments[] = $structure;
  

•    }
  

• }

  return array($a_return_parts, $a_attachments); }

The single non-text part is now shown as attachment, and can be retrieved by the client, but the content-decoding still needs to be done.

Two questions:

1. Is this the right thing, the right place and the right solution?
2. How do I get RoundCube to use the proper decoding for the part?

Robin