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Add ModifiedSaml2Backend & _update_user example to perform authorization #303

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Jun 28, 2021
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Add ModifiedSaml2Backend & _update_user example to perform authorization #303

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16 changes: 16 additions & 0 deletions docs/source/contents/setup.rst
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Expand Up @@ -407,6 +407,22 @@ For example::
user.groups.add(user_group)
return super().save_user(user, *args, **kwargs)

Keep in mind save_user is only called when there was a reason to save the User model (ie. first login), and it has no access to SAML attributes for authorization. If this is required, it can be achieved by overriding the _update_user::

from djangosaml2.backends import Saml2Backend

class ModifiedSaml2Backend(Saml2Backend):
def _update_user(self, user, attributes: dict, attribute_mapping: dict, force_save: bool = False):
if 'eduPersonEntitlement' in attributes:
if 'some-entitlement' in attributes['eduPersonEntitlement']:
user.is_staff = True
force_save = True
else:
user.is_staff = False
force_save = True
return super()._update_user(user, attributes, attribute_mapping, force_save)


.. _hooks: https://github.com/identitypython/djangosaml2/blob/master/djangosaml2/backends.py#L181


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