Re: [Dovecot] handling filename of compressed messages

On 01/14/2010 03:33 AM Leonardo Rodrigues wrote:

i'm running dovecot 1.2.9 and, among other things, i have the zlib 

plugin enabled. A shell script runs once a day to compresses all not still compressed files on the users maildirs.

so far so good, it works fine, there's no problem on that.


what i think is not happening 100% correctly is the following:

1) user receives a message

2) BEFORE the compress routine runs, filename is:

new/1263436052.V6814I43300b4M146002.correio.domain.com.br,S=238207

3) AFTER the compress routine, filename is now:

new/1263436052.V6814I43300b4M146002.correio.domain.com.br,S=238207.gz

*PLING* And here is the problem. :-) I've found it. May I keep it?

… i'm aware that dovecot doesnt need the '.gz' extension on the file to recognize that as a gzipped file. Even without the .gz extension, dovecot is correctly reading the file. the '.gz' is not even necessary on the filename and still dovecot can handle it fine.

The .gz is only wrong in the filename

anyway, i would like to suggest dovecot to handle the filename to 

keep the .gz extension, if that exists. This could help sysadmins to easily identify gzipped files on the maildirs and make anything with them, if that's desired.

i would like to see dovecot changing filenames properly and keeping 

the .gz extension always, for example

cur/1263436052.V6814I43300b4M146002.correio.domain.com.br,S=238207:2,S.gz instead of cur/1263436052.V6814I43300b4M146002.correio.domain.com.br,S=238207.gz:2,S

cur/1263436052.V6814I43300b4M146002.correio.domain.com.br,S=238207:2,RS.gz instead of cur/1263436052.V6814I43300b4M146002.correio.domain.com.br,S=238207.gz:2,RS

No, you don't wont to have such file names.

http://wiki.dovecot.org/Plugins/Zlib: … Dovecot can now read the file, but to avoid compressing it again … include e.g. a "Z" flag in the file name … (e.g. 1223212411.M907959P17184.host,S=3271:2,SZ)

The article links also to: http://cr.yp.to/proto/maildir.html: … What can I put in info? When you move a file from new to cur, you have to change its name from uniq to uniq:info … info starting with "2,": Each character after the comma is an independent flag. …

In short: You want to rename 1263436052.V6814I43300b4M146002.correio.domain.com.br,S=238207 to 1263436052.V6814I43300b4M146002.correio.domain.com.br,S=238207:2,Z

Regards, Pascal

The trapper recommends today: beeffeed.1001404@localdomain.org