266 lines
9.9 KiB
Python
266 lines
9.9 KiB
Python
# django-mellon - SAML2 authentication for Django
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# Copyright (C) 2014-2019 Entr'ouvert
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import datetime
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from unittest import mock
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import lasso
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from xml_utils import assert_xml_constraints
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from mellon.models import Issuer
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from mellon.models_utils import get_issuer
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from mellon.utils import create_metadata, flatten_datetime, iso8601_to_datetime, make_session_dump
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from mellon.views import check_next_url
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def test_create_metadata(rf, private_settings, caplog):
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ns = {
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'sm': 'urn:oasis:names:tc:SAML:2.0:metadata',
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'ds': 'http://www.w3.org/2000/09/xmldsig#',
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'idpdisc': 'urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol',
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}
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private_settings.MELLON_PUBLIC_KEYS = ['xxx', '/yyy']
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private_settings.MELLON_NAME_ID_FORMATS = [lasso.SAML2_NAME_IDENTIFIER_FORMAT_UNSPECIFIED]
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private_settings.MELLON_DEFAULT_ASSERTION_CONSUMER_BINDING = 'artifact'
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request = rf.get('/')
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with mock.patch('mellon.utils.open', mock.mock_open(read_data='BEGIN\nyyy\nEND'), create=True):
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metadata = create_metadata(request)
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assert_xml_constraints(
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metadata.encode('utf-8'),
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(
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'/sm:EntityDescriptor[@entityID="http://testserver/metadata/"]',
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1,
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('/*', 1),
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(
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'/sm:SPSSODescriptor',
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1,
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('/*', 7),
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('/sm:NameIDFormat', 1),
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('/sm:SingleLogoutService', 2),
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(
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'/sm:AssertionConsumerService[@isDefault=\'true\'][@Binding=\'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Artifact\']',
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1,
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),
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(
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'/sm:AssertionConsumerService[@isDefault=\'true\'][@Binding=\'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST\']',
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0,
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),
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(
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'/sm:AssertionConsumerService[@Binding=\'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST\']',
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1,
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),
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(
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'/sm:KeyDescriptor/ds:KeyInfo/ds:X509Data',
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2,
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('/ds:X509Certificate', 2),
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('/ds:X509Certificate[text()=\'xxx\']', 1),
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('/ds:X509Certificate[text()=\'yyy\']', 1),
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),
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),
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),
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namespaces=ns,
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)
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private_settings.MELLON_METADATA_PUBLISH_DISCOVERY_RESPONSE = True
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with mock.patch('mellon.utils.open', mock.mock_open(read_data='BEGIN\nyyy\nEND'), create=True):
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metadata = create_metadata(request)
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assert_xml_constraints(
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metadata.encode('utf-8'),
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(
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'/sm:EntityDescriptor[@entityID="http://testserver/metadata/"]',
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1,
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('/*', 1),
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(
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'/sm:SPSSODescriptor',
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1,
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('/*', 8),
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('/sm:Extensions', 1, ('/idpdisc:DiscoveryResponse', 1)),
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('/sm:NameIDFormat', 1),
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('/sm:SingleLogoutService', 2),
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(
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'/sm:AssertionConsumerService[@isDefault=\'true\'][@Binding=\'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Artifact\']',
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1,
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),
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(
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'/sm:AssertionConsumerService[@isDefault=\'true\'][@Binding=\'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST\']',
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0,
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),
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(
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'/sm:AssertionConsumerService[@Binding=\'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST\']',
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1,
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),
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(
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'/sm:KeyDescriptor/ds:KeyInfo/ds:X509Data',
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2,
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('/ds:X509Certificate', 2),
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('/ds:X509Certificate[text()=\'xxx\']', 1),
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('/ds:X509Certificate[text()=\'yyy\']', 1),
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),
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),
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),
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namespaces=ns,
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)
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private_settings.MELLON_ASSERTION_CONSUMER_BINDINGS = ['post']
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with mock.patch('mellon.utils.open', mock.mock_open(read_data='BEGIN\nyyy\nEND'), create=True):
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metadata = create_metadata(request)
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assert 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST'
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assert_xml_constraints(
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metadata.encode('utf-8'),
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(
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'/sm:EntityDescriptor/sm:SPSSODescriptor',
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1,
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(
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'/sm:AssertionConsumerService[@Binding=\'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Artifact\']',
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0,
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),
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(
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'/sm:AssertionConsumerService[@Binding=\'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST\']',
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1,
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),
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),
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namespaces=ns,
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)
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private_settings.MELLON_ASSERTION_CONSUMER_BINDINGS = ['artifact']
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with mock.patch('mellon.utils.open', mock.mock_open(read_data='BEGIN\nyyy\nEND'), create=True):
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metadata = create_metadata(request)
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assert 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST'
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assert_xml_constraints(
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metadata.encode('utf-8'),
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(
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'/sm:EntityDescriptor/sm:SPSSODescriptor',
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1,
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(
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'/sm:AssertionConsumerService[@Binding=\'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Artifact\']',
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1,
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),
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(
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'/sm:AssertionConsumerService[@Binding=\'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST\']',
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0,
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),
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),
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namespaces=ns,
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)
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def test_iso8601_to_datetime(private_settings):
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import django.utils.timezone
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import pytz
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private_settings.TIME_ZONE = 'UTC'
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if hasattr(django.utils.timezone.get_default_timezone, 'cache_clear'):
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django.utils.timezone.get_default_timezone.cache_clear()
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django.utils.timezone._localtime = None
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private_settings.USE_TZ = False
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# UTC ISO8601 -> naive datetime UTC
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assert iso8601_to_datetime('2010-10-01T10:10:34Z') == datetime.datetime(2010, 10, 1, 10, 10, 34)
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# NAIVE ISO8601 -> naive datetime UTC
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assert iso8601_to_datetime('2010-10-01T10:10:34') == datetime.datetime(2010, 10, 1, 10, 10, 34)
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private_settings.USE_TZ = True
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# UTC+1h ISO8601 -> Aware datetime UTC
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assert iso8601_to_datetime('2010-10-01T10:10:34+01:00') == datetime.datetime(
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2010, 10, 1, 9, 10, 34, tzinfo=pytz.utc
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)
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# Naive ISO8601 -> Aware datetime UTC
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assert iso8601_to_datetime('2010-10-01T10:10:34') == datetime.datetime(
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2010, 10, 1, 10, 10, 34, tzinfo=pytz.utc
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)
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def test_flatten_datetime():
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d = {
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'x': datetime.datetime(2010, 10, 10, 10, 10, 34),
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'y': 1,
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'z': 'u',
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}
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assert set(flatten_datetime(d).keys()) == {'x', 'y', 'z'}
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assert flatten_datetime(d)['x'] == '2010-10-10T10:10:34'
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assert flatten_datetime(d)['y'] == 1
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assert flatten_datetime(d)['z'] == 'u'
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def test_check_next_url(rf):
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assert not check_next_url(rf.get('/'), '')
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assert not check_next_url(rf.get('/'), None)
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assert not check_next_url(rf.get('/'), '\x00')
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assert not check_next_url(rf.get('/'), '\u010e')
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assert not check_next_url(rf.get('/'), 'https://example.invalid/')
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# default hostname is testserver
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assert check_next_url(rf.get('/'), 'http://testserver/ok/')
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def test_get_issuer_entity_id_migration(db, settings, metadata):
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entity_id1 = 'http://idp5/metadata'
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entity_id2 = 'http://idp6/metadata'
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settings.MELLON_IDENTITY_PROVIDERS = [
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{
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'METADATA': metadata,
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},
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]
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issuer1 = get_issuer(entity_id1)
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assert issuer1.entity_id == entity_id1
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assert issuer1.slug is None
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settings.MELLON_IDENTITY_PROVIDERS = [
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{
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'METADATA': metadata,
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'SLUG': 'idp',
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},
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]
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issuer2 = get_issuer(entity_id1)
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assert issuer2.id == issuer1.id
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assert issuer2.entity_id == entity_id1
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assert issuer2.slug == 'idp'
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settings.MELLON_IDENTITY_PROVIDERS = [
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{
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'METADATA': metadata.replace(entity_id1, entity_id2),
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'SLUG': 'idp',
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},
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]
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issuer3 = get_issuer(entity_id2)
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assert issuer3.id == issuer1.id
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assert issuer3.entity_id == entity_id2
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assert issuer3.slug == 'idp'
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def test_make_session_dump(db, django_user_model):
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from mellon.models import SessionIndex, UserSAMLIdentifier
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user = django_user_model.objects.create(username='user')
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issuer = Issuer.objects.create(entity_id='https://idp.example.com/metadata', slug='idp')
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saml_identifier = UserSAMLIdentifier.objects.create(
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user=user, name_id='1234', issuer=issuer, nid_format=lasso.SAML2_NAME_IDENTIFIER_FORMAT_PERSISTENT
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)
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for i in range(2):
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SessionIndex.objects.create(session_index=str(i), saml_identifier=saml_identifier, session_key='abcd')
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assert (
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make_session_dump(saml_identifier.sessionindex_set.all())
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== '''\
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<ns0:Session xmlns:ns0="http://www.entrouvert.org/namespaces/lasso/0.0" xmlns:ns1="urn:oasis:names:tc:SAML:2.0:assertion" Version="2">
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<ns0:NidAndSessionIndex AssertionID="" ProviderID="https://idp.example.com/metadata" SessionIndex="0">
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<ns1:NameID Format="urn:oasis:names:tc:SAML:2.0:nameid-format:persistent">1234</ns1:NameID>
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</ns0:NidAndSessionIndex>
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<ns0:NidAndSessionIndex AssertionID="" ProviderID="https://idp.example.com/metadata" SessionIndex="1">
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<ns1:NameID Format="urn:oasis:names:tc:SAML:2.0:nameid-format:persistent">1234</ns1:NameID>
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</ns0:NidAndSessionIndex>
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</ns0:Session>
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'''
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)
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