[Dovecot] maildir maintenance?

[Timo Sirainen]

On 24.11.2010, at 18.59, Brian Kroth wrote:

>>> Hi, I'm running version 1.2.15 (so no doveadm)
>> You could build Dovecot v2.0 and only use doveadm binary from it.
> 
> Does it just issue the command via IMAP?  No direct filesystem
> operations?

It's all direct filesystem operations, no IMAP. But v1.2.15 can read v2.0's index files just fine.

>> Looks about ok. The main thing I'm worried is what happens if user creates mailboxes containing " or ' or ` characters.
> 
> Yeah, that was mostly me being lazy in my wanting to deal with escaping,
> so I just ignored them.
> 
> In what I originally wrote, I think it just won't touch them.
> 
> Or is the issue that the find command might remove them and then the
> indexes don't get fixed up?  I suppose I could just make sure that the
> find ignores those dirs, but I thought (from other maillist reading)
> that the next time their client SELECTs the folder it'll fix it up
> anyways.

I was more thinking what happens if the user creates a mailbox called `rm -rf /` or something.. Also if there are " or \ characters I think the LIST output will use literals and your parsing will break more or less badly.

> I suppose another spin on this would be for me to script the preauth
> imap client to figure out which mailboxes have messages marked for
> deletion of such and such an age and then try to use EXPUNGE to wipe
> just them out.  I'm not sure off hand if that's possible.

That would be a bit difficult at least to do via IMAP..