dovecot - Jul 2016 - is it possible to run a post-login script in a dovecot proxy with local auth?

We?re using dovecot v2.2.22, authenticating on a local database (passdb with sql
driver), and then proxying the connections to the backend server returned by
passdb (proxy=y and backend in ?host? column). To support some legacy clients we
should keep POP/IMAP-before-SMTP running for some time, but right know I don?t
know how to hook up a successful authentication in the dovecot proxy.

I did read from http://wiki2.dovecot.org/PostLoginScripting:
	?...it's not currently possible to run post-login scripts in proxies,
because they're not actually logging in to the local Dovecot?
Does that also holds true even if the proxy is authenticating users locally
before proxying them?

Failing that, any idea on how to get successful logins, other than parsing the
log file?

thank you,
--
Luca Lesinigo

On 05 Jul 2016, at 02:14, Luca Lesinigo <luca at lm-net.it>
wrote:
> 
> We?re using dovecot v2.2.22, authenticating on a local database (passdb
with sql driver), and then proxying the connections to the backend server
returned by passdb (proxy=y and backend in ?host? column). To support some
legacy clients we should keep POP/IMAP-before-SMTP running for some time, but
right know I don?t know how to hook up a successful authentication in the
dovecot proxy.
> 
> I did read from http://wiki2.dovecot.org/PostLoginScripting:
> 	?...it's not currently possible to run post-login scripts in proxies,
because they're not actually logging in to the local Dovecot?
> Does that also holds true even if the proxy is authenticating users locally
before proxying them?
Yes. Only when the imap/pop3 process starts the post-login scripting can work.
> Failing that, any idea on how to get successful logins, other than parsing
the log file?
passdb checkpassword? Or write a plugin.