Bug 106635

Summary:	attachment compression should support gzip, bzip2, compress, not only zip
Product:	[Unmaintained] kmail	Reporter:	disclosed <k_b0000>
Component:	general	Assignee:	kdepim bugs <kdepim-bugs>
Status:	RESOLVED WAITINGFORINFO
Severity:	wishlist	CC:	Alexey.Kouznetsov, bjoern, luigi.toscano, psychonaut, ralf
Priority:	NOR
Version:	1.8
Target Milestone:	---
Platform:	RedHat Enterprise Linux
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description disclosed 2005-06-01 22:22:23 UTC

Version:           1.8 (using KDE KDE 3.4.0)
Installed from:    RedHat RPMs
OS:                Linux

attachment compression should support more formats then zip.
optionally the compression method should be selectable on an attachment basis.

i suggest adding support for the following compression methods:
gzip (*.gz)
bzip2 (*.bz2)
compress (*.Z)

it might also be an idea to add a header whenever a file was compressed only in the email and not orignially, this would help kmail (and possbily other clients) to recognize whenever a file was compressed only for transport to save space or if it was compressed anyway.

such a header could be:
X-Compressed-for-transport: filename.txt.gz
X-Compressed-for-transport: filename2.txt.Z

or similar.
files that are compressed already when added as attachments should not get the X-Compressed-for-transport header.



then when the mail is recieved and kmail finds a X-Compressed-for-transport file, it will either:
1. automatically decompress and store the file decompressed in the mail (receiving user will not see that file was compressed), or
2. ask to decompress when user selects save as.

feel free to split this bug if needed.

Comment 1 disclosed 2005-06-01 22:30:44 UTC

for clearity:
it is important not to decompress file that where compressed already when added.
for example you don't want do automatically decompress files such as:
my1000files.tar.gz

Comment 2 Tristan Miller 2005-09-30 01:55:43 UTC

In addition to being able to select the compression method at attachment time, I recommend having a preferences menu where the user can select the default compression method.  For my own use, there is no reason to use anything but bzip2, so I would be annoyed if I had to manually select the compression scheme every time I added an attachment.

Comment 3 Alexey Kouznetsov 2008-10-02 14:09:12 UTC

Yes, the zip extension that is automatically added to archives make problems  when using Gmail (it forbids zip archives). And now  (eg) Gzip format is widely supported, also by archivers for the M$ windows platform.

Comment 4 Tristan Miller 2009-04-25 23:21:44 UTC

Confirming feature still missing in KDE 4.2.2.

Comment 5 Björn Ruberg 2010-03-14 10:33:54 UTC

*** Bug 221776 has been marked as a duplicate of this bug. ***

Comment 6 Myriam Schweingruber 2012-08-18 08:08:37 UTC

Thank you for your feature request. Kmail1 is currently unmaintained so we are closing all wishes. Please feel free to reopen a feature request for Kmail2 if it has not already been implemented.
Thank you for your understanding.

Comment 7 Luigi Toscano 2012-08-19 00:40:53 UTC

Instead of creating a new feature request, please confirm here if the wishlist is still valid for kmail2.

Comment 8 Tristan Miller 2016-08-12 18:51:05 UTC

Confirming feature is still missing in KMail 4.14.10.  Please reassign this report to KMail2.