[TYPO3-dev] Limit tx_sv_authbase extension to certain pid or branch of the pagetree

[Sacha Vorbeck]

Hi,

I have a TYPO3 installation where a service extension implements a 
custom FE authentication service.

There is a class that extends tx_sv_authbase and it is activated via
t3lib_extMgm::addService

This is working fine, if the user enters the right password, the 
username doesn`t matter and he is logged in.

But now I want to limit this to a certain branch of the pagetree as a 
another FE login has been added to the site where the FE login should 
work the standard way.

Can anyone tell me how to limit such a plugin to a certain branch of the 
pagetree or even include the plugin dynamically only for a certain 
branch of the pagetree?

-- 
thank you - all the best,
Sacha