309633 - German special characters in Attachment are encoded wrong.

Status: RESOLVED INVALID

(Thunderbird :: General, defect)

Description

[thomas kopp]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b4) Gecko/20050908 Firefox/1.4
Build Identifier: Thunderbird 1.5 and 1.6a1

The German ö ü ä that cause the problem. 
They are encoded wrong so the filename is not recognized by the application
(outlook, webmailer).
The file is  detected the filename as something binary (.dat .bin ...) not as
the original file format (.doc .pdf)

Reproducible: Always

Steps to Reproduce:
1. attach a word document äää.doc with a German special character
2. send to yahoo or outlook or hotmail
3. the filename is called file.bin or something like that




Correct Working:

Content-Disposition: attachment; filename=" =?ISO-8859-1?Q?Mieterh=F6hung?= Z.doc"
Content-Transfer-Encoding: base64
Content-Type: application/octet-stream; name=" =?ISO-8859-1?Q?Mieterh=F6hung?=
Z.doc"

Wrong:

Content-Type: application/octet-stream;
name*=ISO-8859-1''Mieterh%F6hung%20Z.doc
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename*=ISO-8859-1''Mieterh%F6hung%20Z.doc

Comment 1

[Elmar Ludwig]

This is a "misfeature" in MS Outlook and some other mail clients that don't
support RFC 2231 encoded parameter values. Thunderbird is just following the
relevant standard here, see bug 193439 for the discussion about this.