Problem:
We want to perform actions when a user is added to a group, and
possibly when a user is removed from a group. There is no hook point
for this currently in the zope.app.authentication code.
Solution:
Fire events in the zope.app.authentication code when principals are
added and removed from groups.
----8<----8<----
from zope import interface
def IPrincipalAddedToGroup(interface.Inteface):
group = interface.Attribute('the group to which the principal
was added')
principal = interface.Attribute('the principal added')
def IPrincipalRemovedFromGroup(interface.Inteface):
group = interface.Attribute('the group from which the principal
was removed')
principal = interface.Attribute('the principal removed')
----8<----8<----
In terms of implementation, it looks like
zope.app.authentication.groupfolder.GroupFolder._addPrincipalToGroup
and
zope.app.authentication.groupfolder.GroupFolder._removePrincipalFromGrou
p are the methods that would fire the events.
Risks:
I am aware of None.
Thoughts?
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