After doing some digging through old mailing list threads, I fonud the
following information on the 'path' directive for dicts.
http://www.dovecot.org/list/dovecot/2009-April/038922.html
It looks like paths are hard coded per plugin, and you simply select one
of the hard coded paths (this is what I gathered from the thread, I have
not verified the accuracy of this).
After taking a romp through the Dovecot source, I was able to gather
that as far as I can tell, the lvalue of anything inside of the fields{}
block will be evaluated as a SQL expression, unless the expression
includes characters '/' or '\\'. So in my case, the following
configuration will *theoretically* meet my needs.
map {
pattern = shared/shared-boxes/user/$to/$from
table = mailbox_user_map
value_field = mailbox_user
fields {
mailbox_user||'@'||mailbox_domain = $from
user_name||'@'||user_domain = $to
}
}
This is untested though, and I have almost certainly overlooked some
devilish detail. Will report back further once I have time to test.
On 2015-03-13 05:48, ja...@lottspot.com wrote:
Hello, list!
I am in the midst of configuring a new Dovecot IMAP server, and I'm
preparing to setup shard mailboxes as part of the ocnfiguration. In
order to get these setup the way I want, I've figured out that I'm
going to have to setup an acl_shared_dict. This is where things start
to get confusing for me, as I have had difficulty finding thorough
explanations of dictionary configuration.
My primary concern is that all my user details are stored in a sqlite
database in which the '%n' and '%d' components of username/email
addresses are stored in separate columns. The SQL dictionary example
in the Shared Mailboxes document
[http://wiki2.dovecot.org/SharedMailboxes/Shared] assumes that the
username is stored as a singular '%n@%d' key. In my authdb lookups, I
use sqlite syntax to concatenate the '%n' and '%d' columns around a
'@' character to find the user. Is it possible to implement an
acl_shared_dict in some similar fashion?
My second question, which is completely unrelated and more out of
morbid curiosity than anything (although it could affect my
configuration decisions) is that I noticed every dictionary which
shows up in the documentation has a "pattern" field. In the case of
the acl_shared_dict example, the pattern is
'shared/shared-boxes/user/$to/$from'. I couldn't figure out by
studying the example where this value was derived from, or indeed
where it is derived from in any example dictionaries which are
documented. Can anyone explain the meaning of the "pattern" field and
what exactly its value means?
Thanks in advance for all your helpful answers! :)
