dovecot - Aug 2021 - Help to setup a Unix socket based authentication server for dovecot in Python

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-example-for-authenticating-via-a-unix-socket


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 at 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. ?



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> On 08-13-2021 8:19 am, Sherin A wrote:
> 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
> 
Or another option...
Using SQL would allow you to have key-value, you can have different mail 
location per domain / user, and dovecot can talk to SQL over TCP or 
unix:socket. You wouldn't need to make a script, and when users are 
stored in SQL (if you are using postfix) postfix can talk to that same 
SQL table to know which users are valid for accepting email.