Re: [Dovecot] Bug(?): LSUB returns empty string although subscribed (was: Re: Cannot subscribe to shared folders)

It's a bug, yes. It's also already fixed in v2.1 code tree as a result of large cleanups and fixes to mailbox/subscriptions listing. Backporting the fixes to v2.0 (or even worse: v1.x) would probably be a lot of trouble..

On Wed, 2011-02-16 at 20:31 +0100, Lukas Haase wrote:

Hi,

I did further investigation on this issue (using raw IMAP commands) and I think that this is a bug...

Am 15.02.2011 18:53, schrieb Lukas Haase:

...

Am 14.02.2011 14:54, schrieb Lukas Haase:

...

Hi,

I am unable to subscribe to shared folders (...) everything seems to be correct (dovecot 1.2).

My configuration is the following (maybe that is the problem?!):

namespace private { separator = . prefix = inbox = no list = no hidden = yes location = maildir:~/Maildir-root subscriptions = yes }

namespace private { separator = . prefix = INBOX. inbox = yes subscriptions = yes }

namespace public { separator = . prefix = Shared. location = maildir:/var/mail/shared:INDEX=~/Maildir/shared:LAYOUT=fs subscriptions = YES / NO <-- } [...]

In each case I make sure that all folders are subscribed, that is, the subscribe command returns OK and the subscribed folders are written into /var/mail/shared/subscriptions and ~/Maildir-root/subscriptions, respectively. Just to make sure:

# cat /var/mail/shared/subscriptions NoSpamDrop Public SpamDrop # cat /home/lukas/Maildir-root/subscriptions Shared.NoSpamDrop Shared.Public Shared.SpamDrop #

It turns out that if I set

1.) subscriptions = yes (in the public namespace above) the lsub command behaves correct:

 . list "" "Shared.*"
 * LIST (\HasNoChildren) "." "Shared.NoSpamDrop"
 * LIST (\HasNoChildren) "." "Shared.Public"
 * LIST (\HasNoChildren) "." "Shared.SpamDrop"
 . OK List completed.
 . lsub "" "Shared.*"
 * LSUB () "." "Shared.NoSpamDrop"
 * LSUB () "." "Shared.Public"
 * LSUB () "." "Shared.SpamDrop"
 . OK Lsub completed.
 . logout
 * BYE Logging out
 . OK Logout completed.
 closed

2.) ...but with subscriptions = no the lsub command returns an empty list ALTHOUGH the folders are subscribed:

 . list "" "Shared.*"
 * LIST (\HasNoChildren) "." "Shared.NoSpamDrop"
 * LIST (\HasNoChildren) "." "Shared.Public"
 * LIST (\HasNoChildren) "." "Shared.SpamDrop"
 . OK List completed.
 . lsub "" "Shared.*"
 . OK Lsub completed.
 . logout
 * BYE Logging out
 . OK Logout completed.

Now I am pretty sure that this is a bug. Maybe it is better to file a bug report?

Best regards, Luke