[Dovecot] Custom quota setup

[Richard Platel]

On 2013-08-02, at 12:05 PM, Timo Sirainen <tss at iki.fi> wrote:

> On 2.8.2013, at 18.56, Richard Platel <rplatel at tucows.com> wrote:
> 
>> On 2013-08-02, at 11:34 AM, Timo Sirainen <tss at iki.fi> wrote:
>> 
>>> On 2.8.2013, at 18.15, Richard Platel <rplatel at tucows.com> wrote:
>>> 
>>>> We pass custom quota rules for each user in our userdb, and use a custom dict proxy program, so that program could read the file and pass a setting at log in time too (if, for example, there was a setting that said "offset the user's quota usage by X amount")
>>> 
>>> That I think would work.
>>> 
>> 
>> That's future development though?  No such setting exists now?
> 
> I'm not exactly sure what you thought of, but my idea was simply that you'd add your own dict proxy in the middle which hooks into the GET command, and increases its value by reading the filestoresize. You can already do that by pointing to a UNIX socket different from the normal dict server socket, similar as in http://wiki2.dovecot.org/AuthDatabase/Dict
> 

If, for example, the user has 2GB quota, and 750MB of mail, and 500MB of files, we'd like the mail client to show that the user has 2GB quota, and 1.25GB used, .75GB free.

I see how via the dict userdb proxy I could reduce the user's quota allowance by the filestorage amount:
quota_rule=*:storage=<user allowed storage - filestore size>, 
and the client would show the correct free amount, but not the correct total or used amount. 

Is this what you mean, or is there some other setting or some other dict proxy entirely that I'm missing?