[Zope-CMF] How does Zope know the name of the session cookie it should refer to?

[Alex Man]

Hi,

My apologies if this isn't the correct mailing list I should post 
this question to. Please let me know if I should post on another list.

I'm using Shibboleth as the authentication system in Plone and is 
wondering how Zope knows the name of the session cookie it should refer to.

First of all, the software I'm using:
    * Zope 2.9.8
    * Plone 2.5.5
    * Apache 2.2.6
    * apachepas 1.2
    * ShibbolethLogin 0.6
If a user logs into Plone through the local Plone user account, the 
session cookie Plone refers to is

__ac

If a user logs into Plone through Shibboleth, the session cookie 
Plone refers to is

_shibsession_XXX

where XXX is a 40-character alphanumeric sequence.

I'm sure something must have told Zope/Plone to refer to the 
_shibsession_XXX cookie instead __ac and I'm wondering how that is done.

Does anyone have any idea/hint on this? I'd appreciate any kind of 
help. Thanks a lot!


Regards,

Alex 
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