rawlog data in a lua script

[michael.zork at feierfighter.de]

Hi,   as far as I know I cannot configure Dovecot to pipe the rawlog into rsyslog. Or can I, how?   The rawlog feature in Dovecot writes multiple files (two for each connection, one for raw requests and one for raw responses) into a predefined directory for the user. This generates dozens or hundreds of files per user per day, each file with a timestamp in it, so the filename is not predictable.   Even if it works, I'm not sure if syslog (rsyslog or syslog-ng) should be (ab)used to collect the rawlog file contents, which might be hundreds of MB per minute if someone FETCHes all his emails while setting up a new account in Thunderbird or so. That sounds like a suboptional idea. Syslog cannot handle binary text I guess, and it might have limits like "line length limits" or similar. It sounds like the wrong tool for the job.   Michael  

Am 28-Jul-2022 15:28:16 +0200 schrieb dovecot at ptld.com: 
> I'm searching for a possibility to have the rawlog feature in lua, which would be much easier for processing. 
> 
> It would be much easier to hook to the "raw request and response events" inside Dovecot and have the rawlog-data in a lua script,
> where I can prepare it and send it to another maschine for monitoring/collection/analysis/statistics or similar, for example via HTTP. 

rsyslog has this feature (omprog) allowing you to setup any script/program for it to pipe logs to in real time.

https://www.rsyslog.com/doc/master/configuration/modules/omprog.html
https://github.com/rsyslog/rsyslog/blob/master/plugins/external/INTERFACE.md

Works similar in concept to postfix policy servers if you are familiar with them.
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