On 13/08/2021 15:12 Sherin A sherinmon@gmail.com wrote:

Hi, I am building a custom server platform in which dovecot is used for imap/pop . But the default authentication mechanism is not suitable for me becuase each domain will have different system users and different location for mail storage . So I need to create a custom authentication mechanism using python . There is an option to use Key-value authentication (dict) database via socket as per

https://doc.dovecot.org/configuration_manual/authentication/dict/#complete-e...

The above documentation link have a sample perl script too to send authentication to

uri = proxy:/var/run/auth_proxy_dovecot/socket:somewhere

So my question is how the inputs are send to the socket file ? in which format ? How the result return ? and in which format ? Let us say I can create a python socket program that can listen to /var/run/auth_proxy_dovecot/socket for getting the inputs from dovecot , but what is the format

Is it like the following

AUTH PLAIN USER test@myemail.com PASS mypassword

I looked into the documentation and developer documentation, I am unable to see how dovecot send the data , I can see a sample perl for answering dict lookups. Any one have a python alternative for it. ?

--

Sherin Abdulkhareem Chairman & Managing Director

It should work just by reading from socket and writing to the socket. You are sent tab separated lines, which start with L or H followed by first parameter that, as in

Hhandshake-data (you can ignore H)

and actual lookups as

Lnamespace/type/arg

and then you respond with

O{"json":"blob"}

You could also consider using Lua authentication. See https://doc.dovecot.org/configuration_manual/authentication/lua_based_authen... (please note version requirements).

which can be lot easier to do.

Regards, Aki