151201 - twice compressed file --> winzip can't open it correctly

Status: VERIFIED DUPLICATE of bug 141806

(Core Graveyard :: File Handling, defect, P3)

Description

[Pieter Poorthuis]

Mozilla 1.0/Win2K doesn't know the extension .tgz
You could define it in preferences->helper applications, but until I did that, 
I got this error:
The mime type of the download is "application/x-gzip", so if I open the 
download directly from Mozilla, WinZip is launched. WinZip shows that the tgz-
file consists of one tar-file, but cannot open it.
Because the original .tgz is correct, Mozilla does something wrong.

Comment 1

[Alfonso Martinez]

winrar can open the file correctly, so the problem must be in winzip or in the
way that it is installed in your computer. (I think that winzip was able to open
tgz and tar files)

Comment 2

[Pieter Poorthuis]

If I add a helper/application with the .tgz extension, it does work. So it is 
not the fault of WinZip (it even works perfectly in IE).

Comment 3

[Olav Vitters]

Headers:

HTTP request sent, awaiting response... 
 1 HTTP/1.1 200 OK
 2 Date: Wed, 03 Jul 2002 10:35:38 GMT
 3 Server: Apache/1.3.26 (Unix) PHP/4.1.2
 4 Last-Modified: Thu, 02 May 2002 20:30:07 GMT
 5 ETag: "3298005-880d-3cd1a1cf"
 6 Accept-Ranges: bytes
 7 Content-Length: 34829
 8 Keep-Alive: timeout=30, max=100
 9 Connection: Keep-Alive
10 Content-Type: application/x-gzip
11 Content-Encoding: x-gzip

See bug 145758 comment 1

Duping

*** This bug has been marked as a duplicate of 145758 ***

Comment 4

[Boris Zbarsky [:bzbarsky]]

And reopening.  This has nothing to do with the other bug as far as I can see. 
What happens here is that we don't know that .tgz is a valid extension for
application/x-gzip, so we append .gz to the filename before giving it to winzip.
 Now winzip sees

foo.tgz.gz

instead of "foo.tgz".  At this point winzip gets very confused...

Comment 5

[Boris Zbarsky [:bzbarsky]]

Oh, and the reason it's not a duplicate is that in the other bug the file is
sent as .tar.gz, not as .tgz

Comment 6

[Boris Zbarsky [:bzbarsky]]

I suppose I should take this.... we need to redesign this whole system....

Comment 7

[Pieter Poorthuis]

>Oh, and the reason it's not a duplicate is that in the other bug the file is
>sent as .tar.gz, not as .tgz
Exactly. 
But is this problem so difficult?

Comment 8

[Boris Zbarsky [:bzbarsky]]

Yes, it is... it requires pretty much a full redesign of the system to actually
solve it usefully (that is, without regressing the bugs the current system
attempts to address).

setting target and priority back to what they were... ;)

Comment 9

[Boris Zbarsky [:bzbarsky]]

oh, fun.  I already own a bug on exactly this issue..

*** This bug has been marked as a duplicate of 141806 ***

Comment 10

[timeless]

vrfy dupe