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[Add] Limited support for <Scoping> in SAML2 #219

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[Add] Limited support for <Scoping> in SAML2 #219

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2 changes: 2 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -284,6 +284,8 @@ This is the settings.json file:
// represent the requested subject.
// Take a look on src/onelogin/saml2/constants.py to see the NameIdFormat that are supported.
"NameIDFormat": "urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified",
// List of IdPs (entityIds) allowed to authenticate the request (SAML2 Scoping)
"scopingIdpList": ["https://<idp_domain>"],
// Usually x509cert and privateKey of the SP are provided by files placed at
// the certs folder. But we can also provide them with the following parameters
"x509cert": "",
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18 changes: 16 additions & 2 deletions src/onelogin/saml2/authn_request.py
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Expand Up @@ -100,6 +100,19 @@ def __init__(self, settings, force_authn=False, is_passive=False, set_nameid_pol
if 'attributeConsumingService' in sp_data and sp_data['attributeConsumingService']:
attr_consuming_service_str = 'AttributeConsumingServiceIndex="1"'

scoping_str = ''
if 'scopingIdpList' in sp_data:
scoping_idp_str = ''
for idp in sp_data['scopingIdpList']:
scoping_idp_str += ' <samlp:IDPEntry ProviderID="%s" />' % idp

scoping_str = '''\
<samlp:Scoping>
<samlp:IDPList>
%s
</samlp:IDPList>
</samlp:Scoping>''' % scoping_idp_str

request = """<samlp:AuthnRequest
xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"
xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
Expand All @@ -110,7 +123,7 @@ def __init__(self, settings, force_authn=False, is_passive=False, set_nameid_pol
ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
AssertionConsumerServiceURL="%(assertion_url)s"
%(attr_consuming_service_str)s>
<saml:Issuer>%(entity_id)s</saml:Issuer>%(nameid_policy_str)s%(requested_authn_context_str)s
<saml:Issuer>%(entity_id)s</saml:Issuer>%(nameid_policy_str)s%(requested_authn_context_str)s%(scoping_str)s
</samlp:AuthnRequest>""" % \
{
'id': uid,
Expand All @@ -123,7 +136,8 @@ def __init__(self, settings, force_authn=False, is_passive=False, set_nameid_pol
'entity_id': sp_data['entityId'],
'nameid_policy_str': nameid_policy_str,
'requested_authn_context_str': requested_authn_context_str,
'attr_consuming_service_str': attr_consuming_service_str
'attr_consuming_service_str': attr_consuming_service_str,
'scoping_str': scoping_str
}

self.__authn_request = request
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