Hi there,

I've got a pretty old application, the standard structure: there's Session 
which (among others) contains a property currentUser containing the user who 
has logged in and in whose account changes are performed. There is an 
OCSComponent extends ERXComponent with generic component services (many of 
which depend on session and/or its currentUser), and all my components inherit 
this.

Now I've got a new request to allow a given user to connect to _one specific 
page_ in the application through a specific URL _without a login_ and do his 
work in that page.

I can easily generate appropriate URL for a direct action, which would set up a 
session and open the desired page, that's easy.

What I can't quite see is how to prevent the user to go elsewhere in the 
application (e.g., by manually editing the URL) and stay logged in. Is there 
some trick for that?

So far I could think of two solutions:

(i) add a property allowedPage to Session, and in my direct action set it up 
appropriately. Then in the shared component awake at OCSComponent level I could 
check whether this==allowedPage and log out the user if not.

This looks like a good solution, but I am not entirely sure whether I am not 
overlooking some tricky way the user still might stay logged in and get to 
another page (without its awake performed)... is it completely safe?

(ii) write a complete new page code (ERXComponent-based, skipping OCSComponent 
altogether) for the specific page, which would contain and use its own 
component-level currentUser. The direct action would set this up and leave 
session.currentUser empty.

This is self-evidently completely safe, but a _lot_ of legwork :/

Can you see another, better solution? Or can you see that (i) is indeed safe 
enough?

Thanks and all the best (especially happy and successful new year),
OC

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