Hi,
Certain IMAP folder problems started popping up with Squirrelmail with
the 1.1beta10 version of Dovecot (and possibly earlier versions).
Looked into it and I am seeing odd behavior with the LIST command.
Here is how to reproduce problem, unless I'm missing something obvious:
a001 login dean <password>
a001 OK Logged in.
a002 list "" *
* LIST (\NoInferiors \UnMarked) "/" "Sent"
* LIST (\NoInferiors \UnMarked) "/" "Trash"
* LIST (\NoInferiors \UnMarked) "/" "Drafts"
* LIST (\NoInferiors \UnMarked) "/" "INBOX"
a002 OK List completed.
a003 list "" Trash*
* LIST (\NoInferiors \UnMarked) "/" "Trash"
a003 OK List completed.
a004 list "" Trash
a004 OK List completed. <*** What? Shouldn't it have listed Trash
instead of returning nothing?>
a005 list "" Trash" <*** Unbalanced quote causes total
lockup!
It appears that Squirrelmail, and possibly others, are using the LIST
command to test for the presence of a mailbox, but it seems impossible
to get an exact match.
Am I missing something here?
--
Dean Brooks
dean at iglou.com
On Mon, 2007-12-03 at 16:11 -0500, Dean Brooks wrote:> a003 list "" Trash* > * LIST (\NoInferiors \UnMarked) "/" "Trash" > a003 OK List completed. > > a004 list "" Trash > a004 OK List completed. <*** What? Shouldn't it have listed Trash > instead of returning nothing?>Works here: x list "" Trash * LIST (\NoInferiors \Marked) "/" "Trash" x OK List completed. Show me your dovecot -n output?> a005 list "" Trash" <*** Unbalanced quote causes total lockup!I noticed this myself also while testing SEARCH. It's not a real problem though since clients shouldn't do that, and doing it manually doesn't break anything. The process dies when the client disconnects. I'll try to get that fixed anyway. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part URL: <http://dovecot.org/pipermail/dovecot/attachments/20071204/b05d2110/attachment-0002.bin>
On Tue, Dec 04, 2007 at 03:43:44PM +0200, Timo Sirainen wrote:> On Mon, 2007-12-03 at 16:11 -0500, Dean Brooks wrote: > > a003 list "" Trash* > > * LIST (\NoInferiors \UnMarked) "/" "Trash" > > a003 OK List completed. > > Works here: > > x list "" Trash > * LIST (\NoInferiors \Marked) "/" "Trash" > x OK List completed. > > Show me your dovecot -n output?The output of dovecot -n follows. I confirmed that the problem is definitely different behavior than the old version we were running, although I'm confused how you couldn't be able to reproduce it. Well, I'm sure others will run into it if it's a configuration-specific thing, so it's probably worth checking into. I'll see if I can figure it out by twiddling with some settings. base_dir: /var/run/dovecot/ protocols: imap listen: 192.107.41.70 ssl_disable: yes disable_plaintext_auth: no login_dir: /var/run/dovecot//login login_executable: /usr/local/adm/dovecot/libexec/dovecot/imap-login login_user: daemon login_log_format_elements: user=%u ip=%r first_valid_uid: 100 last_valid_uid: 128000 mail_extra_groups: mail mail_location: mbox:%h/Mail:INBOX=/var/mail/%u:INDEX=/mail/indexes/local/%u mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes mbox_write_locks: fcntl mail_plugins: quota imap_quota auth default: mechanisms: plain login passdb: driver: shadow userdb: driver: passwd plugin: quota: fs -- Dean Brooks dean at iglou.com
On Tue, Dec 04, 2007 at 03:43:44PM +0200, Timo Sirainen wrote:> On Mon, 2007-12-03 at 16:11 -0500, Dean Brooks wrote: > > a003 list "" Trash* > > * LIST (\NoInferiors \UnMarked) "/" "Trash" > > a003 OK List completed. > > Works here: > > x list "" Trash > * LIST (\NoInferiors \Marked) "/" "Trash" > x OK List completed. > > Show me your dovecot -n output?Well, I confirmed that doing a specific LIST on INBOX works properly: x list "" INBOX * LIST (\NoInferiors \UnMarked) "/" "INBOX" x OK List completed. However, no matter what configuration changes I make, Dovecot refuses to list a filesystem mailbox unless you specify a wildcard: x list "" Sent x OK List completed. x list "" Sent* * LIST (\NoInferiors \UnMarked) "/" "Sent" x OK List completed. Were there any changes to the filesystem listing code? We're on NFS filesystem if it makes any difference. This problem practically makes Dovecot unusable. I've been trying to trace the code on this, but I'm having a hard time narrowing down what function is actually excluding individual files from the list. -- Dean Brooks dean at iglou.com