708220 - Opening attachments in forwarded messages incorrectly handled

Status: UNCONFIRMED

(Thunderbird :: Message Compose Window, defect)

Description

[Ian Murphy]

Attachment: screenshot of mail forwarding screen

This may be a duplicate but all the older bugs I can find are supposedly fixed and I'm seeing this in version 7 and 8, so its still there.

Possible dups:
https://bugzilla.mozilla.org/show_bug.cgi?id=271094 (old, sort of related and not resolved)
https://bugzilla.mozilla.org/show_bug.cgi?id=273349
https://bugzilla.mozilla.org/show_bug.cgi?id=203570 (old and fixed)

The problem affects the windows version. I haven't checked any others.

when a message with attachments is forwarded the attachments are displayed in a small box at the top right of the screen. if you float the mouse over these attachments it displays a tooltip showing a link to a temp file in a temp directory. The filename and extension do not match the original.

Thus when the user double clicks on mydoc.doc, what opens is something like c:\docs and settings\user\config local\temp\nsmail-1.tmp


In the source of the message I see something like this:

--------------060508030609090605000100
Content-Type: application/octet-stream;
 name="AN1003509.pdf"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
 filename="AN1003509.pdf"

and the message, when sent, is correctly delivered. So it looks like its just a problem with the handling of the link/button which is used to display the filename.

I haven't been able to find any cases where it doesn't do this. I'm seeing this with a client who has an internal lotus notes server and uses imap. The problem occurs on messages sent internally - i.e thunderbird -> notes -> thunderbird -> click on forward

Ian

Comment 1

[Ian Murphy]

I should have added that the problem also occurs on messages which arrive from outside - so its not a notes problem. I just wanted to indicate that it occurs on messages which have been composed, send and reforward using the same client and server.

Comment 3

[Ian Murphy]

This has been marked as resolved/duplicate, however the details of the supposed duplicate incident are not the same. 

Thunderbird is *not* opening a blank message window when you click on these messages. It tries to open a file called <something>.tmp using whatever handler the OS provides. What it should do is to rename the file to the correct extension type before attempting to use the OS to open the file.

The fix for this problem is to add a single line in the code which opens attachments. The extra line should copy the temp file to another temp file but with the original extension. This should then be opened. Thats it, problem fixed.

Quite apart from this it seems ridiculous to be linking incidents to a version which existed no less than 7 years ago. That incident is so old that it may as well be closed off - noone is ever going to investigate it as the code has changed too much to be worth trying to track down.