[Dovecot] Quota plugin rewrite

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Timo Sirainen

14 Sep 2006 14 Sep '06

3:31 p.m.

Backported from CVS HEAD to branch_1_0. You can get it as a patch from http://dovecot.org/patches/1.0/quota-rewrite.diff

New features include support for multiple quota roots, so you could have eg. per-user quota and a larger domain quota (although no backend actually supports this yet..).

The more important feature is that you can configure specific mailboxes to have a bit more space available for them, such as Trash or Spam. The configuration has also changed. Normally you'd use something like this:

quota = maildir # 1GB quota in general quota_rule = *:storage=1048576 # Trash mailbox gets 100MB more (so max. 1,1GB) quota_rule2 = Trash:storage=102400 # Spam mailbox gets also +100MB (still maxes at 1,1GB, not 1,2GB) quota_rule3 = Spam:storage=102400

You can place all the above into plugin { .. } section in dovecot.conf. In userdb if users have different quotas you'd then need to override only quota_rule (not quota, quota_rule2 and quota_rule3).

I tested quickly that this seemed to work as described above. Please test and report. :)

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OpenMacNews

14 Sep 14 Sep

8:33 p.m.

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hi timo,

...

Backported from CVS HEAD to branch_1_0. You can get it as a patch from http://dovecot.org/patches/1.0/quota-rewrite.diff

New features include support for multiple quota roots, so you could have eg. per-user quota and a larger domain quota (although no backend actually supports this yet..).

...

I tested quickly that this seemed to work as described above. Please test and report. :)

do i understand correctly that _this_ (in dovecot.conf) is the way, now, to specify per-user quota, _rather_ than in, e.g., userdb static { spec?

richard

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OpenMacNews

22 Sep 22 Sep

4:52 p.m.

hi,

-- On September 14, 2006 3:31:54 PM +0300 Timo Sirainen <tss@iki.fi> wrote:

...

In userdb if users have different quotas you'd then need to override only quota_rule (not quota, quota_rule2 and quota_rule3).

could you please provide a specific example of the format for per-user quota override in a static userdb? (the wiki has example just for sql query ...)

i've tried a number of various formats suggested @ wiki & @ list, and have been, to date, unable to override the setting from the global conf file. no errors fire, simply no change is accepted.

thanks,

richard

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Timo Sirainen

5:08 p.m.

On Fri, 2006-09-22 at 06:52 -0700, OpenMacNews wrote:

...

hi,

-- On September 14, 2006 3:31:54 PM +0300 Timo Sirainen <tss@iki.fi> wrote:

...
In userdb if users have different quotas you'd then need to override only quota_rule (not quota, quota_rule2 and quota_rule3).

could you please provide a specific example of the format for per-user quota override in a static userdb? (the wiki has example just for sql query ...)

Umm.. With static userdb all the users have the exact same settings. Where could it even get the per-user quota then? Sounds like you'd want to user passwd-file as the userdb, or maybe checkpassword as passdb +userdb, or anything but static userdb..

OpenMacNews

5:29 p.m.

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-- On September 22, 2006 5:08:34 PM +0300 Timo Sirainen <tss@iki.fi> wrote:

...

On Fri, 2006-09-22 at 06:52 -0700, OpenMacNews wrote:

...
hi,

-- On September 14, 2006 3:31:54 PM +0300 Timo Sirainen <tss@iki.fi> wrote:

...
In userdb if users have different quotas you'd then need to override only quota_rule (not quota, quota_rule2 and quota_rule3).

could you please provide a specific example of the format for per-user quota override in a static userdb? (the wiki has example just for sql query ...)

Umm.. With static userdb all the users have the exact same settings. Where could it even get the per-user quota then? Sounds like you'd want to user passwd-file as the userdb, or maybe checkpassword as passdb +userdb, or anything but static userdb..

this approach is what has been repeatedly suggested to me, given my use ONLY of virtual users (hence, the static userdb)

also,

@ <http://wiki.dovecot.org/Quota> "The above example shows how to set the same quota globally for everyone. You can override this for one or all users by returning a quota field from the user database. See UserDatabase for more information about how to set them for the user database you are using. "

and, @ <http://wiki.dovecot.org/UserDatabase> "Currently supported user databases are: ..."

implies, to my read, that _all_ userdb types are 'supported' for quota overrides.

atm, in my 'dovecot.conf':

... protocol lda { ... mail_plugins = quota cmusieve mail_plugin_dir = /usr/local/dovecot-plugins/lda plugin { quota = maildir:storage=10240 # 10 MB quota limit } } ... auth default { ... passdb passwd-file { args = /var/Mail/USERS/imap_user_file } userdb static { args = static uid=301 gid=301 home=/var/Mail/Domains/%d/Accounts/%n nice=10 } }

and, in '/var/Mail/USERS/imap_user_file':

testuser1@mydomain.com:{PLAIN}testpass1::::::quota=maildir:storage=4096
testuser2@mydomain.com:{PLAIN}testpass2::::::quota=maildir:storage=2048

are you, instead, instructing that i need to replace:

userdb static { args = static uid=301 gid=301 home=/var/Mail/Domains/%d/Accounts/%n nice=10 }

with:

userdb passwd-file { args = /var/Mail/USERS/imap_user_file }

and redundantly state the identical uid/gid/home for each entry in the userdb passwd-file, in order to get per-user quota overrides?

thanks,

richard

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Timo Sirainen

6:19 p.m.

On Fri, 2006-09-22 at 07:29 -0700, OpenMacNews wrote:

...

@ <http://wiki.dovecot.org/Quota> "The above example shows how to set the same quota globally for everyone. You can override this for one or all users by returning a quota field from the user database. See UserDatabase for more information about how to set them for the user database you are using. "

and, @ <http://wiki.dovecot.org/UserDatabase> "Currently supported user databases are: ..."

implies, to my read, that _all_ userdb types are 'supported' for quota overrides.

Sure, you can override the quota in also static userdb, as long as you can figure out a way to do that with the possible %variables. For example you could set quota=%p which would override the quota and set it to same as the current process ID. Not very useful though ;)

...

passdb passwd-file { args = /var/Mail/USERS/imap_user_file } userdb static { args = static uid=301 gid=301 home=/var/Mail/Domains/%d/Accounts/%n nice=10 } }

and, in '/var/Mail/USERS/imap_user_file':

testuser1@mydomain.com:{PLAIN}testpass1::::::quota=maildir:storage=4096 testuser2@mydomain.com:{PLAIN}testpass2::::::quota=maildir:storage=2048

Ah, since you're using passwd-file as the passdb, it should be possible to do it this way. Just change quota to userdb_quota.

OpenMacNews

28 Sep 28 Sep

8:54 p.m.

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hi timo,

...

...
and, in '/var/Mail/USERS/imap_user_file':

testuser1@mydomain.com:{PLAIN}testpass1::::::quota=maildir:storage= 4096 testuser2@mydomain.com:{PLAIN}testpass2::::::quota=maildir:storage= 2048

Ah, since you're using passwd-file as the passdb, it should be possible to do it this way. Just change quota to userdb_quota.

per suggestion, i've changed to:

testuser1@mydomain.com:{PLAIN}testpass1::::::userdb_quota=maildir:storag e=4096 testuser2@mydomain.com:{PLAIN}testpass2::::::userdb_quota=maildir:storag e=2048

and restarted.

alas, the quota overrides are STILL ignored ... i'm still getting quota, e.g. of INBOX, as that set in the global dovecot.conf file.

thx,

richard

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