101 lines
4.2 KiB
Python
101 lines
4.2 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 importlib import import_module
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from django.conf import settings
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from django.db import models
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from django.utils.timezone import now
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from django.utils.translation import gettext_lazy as _
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class UserSAMLIdentifier(models.Model):
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user = models.ForeignKey(
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verbose_name=_('user'),
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to=settings.AUTH_USER_MODEL,
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related_name='saml_identifiers',
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on_delete=models.CASCADE,
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)
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name_id = models.TextField(verbose_name=_('SAML identifier'))
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created = models.DateTimeField(verbose_name=_('created'), auto_now_add=True)
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issuer = models.ForeignKey('mellon.Issuer', verbose_name=_('Issuer'), null=True, on_delete=models.CASCADE)
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nid_format = models.TextField(verbose_name=_('NameID Format'), null=True)
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nid_name_qualifier = models.TextField(verbose_name=_('NameID NameQualifier'), null=True)
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nid_sp_name_qualifier = models.TextField(verbose_name=_('NameID SPNameQualifier'), null=True)
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nid_sp_provided_id = models.TextField(verbose_name=('SAML NameID SPPRovidedID'), null=True)
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class Meta:
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verbose_name = _('user SAML identifier')
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verbose_name_plural = _('users SAML identifiers')
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unique_together = (('issuer', 'name_id'),)
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class SessionIndex(models.Model):
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session_index = models.TextField(_('SAML SessionIndex'))
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session_key = models.CharField(_('Django session key'), max_length=40)
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transient_name_id = models.TextField(verbose_name=_('Transient NameID'), null=True)
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saml_identifier = models.ForeignKey(
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verbose_name=_('SAML identifier'), to=UserSAMLIdentifier, on_delete=models.CASCADE
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)
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created = models.DateTimeField(verbose_name=_('created'), auto_now_add=True)
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logout_timestamp = models.DateTimeField(verbose_name=_('Timestamp of the last logout'), null=True)
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@classmethod
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def cleanup(cls, delay_in_minutes=5, chunk_size=None):
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session_engine = import_module(settings.SESSION_ENGINE)
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store = session_engine.SessionStore()
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try:
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Session = store.model
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except AttributeError:
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Session = None
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candidates = cls.objects.filter(
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models.Q(logout_timestamp__lt=now() - datetime.timedelta(minutes=delay_in_minutes))
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| models.Q(created__lt=now() - datetime.timedelta(days=1))
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)
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if chunk_size:
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candidates = candidates[:chunk_size]
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candidates_session_keys = candidates.values_list('session_key', flat=True)
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if Session is not None:
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# fast path
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existing_session_keys = Session.objects.filter(
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session_key__in=candidates_session_keys
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).values_list('session_key', flat=True)
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dead_session_keys = candidates_session_keys.difference(existing_session_keys)
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else:
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dead_session_keys = []
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for session_key in candidates_session_keys:
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if not store.exists(session_key):
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dead_session_keys.append(session_key)
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cls.objects.filter(session_key__in=dead_session_keys).delete()
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class Meta:
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verbose_name = _('SAML SessionIndex')
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verbose_name_plural = _('SAML SessionIndexes')
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unique_together = (('saml_identifier', 'session_index', 'session_key'),)
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class Issuer(models.Model):
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entity_id = models.TextField(verbose_name=_('IdP Entity ID'), unique=True)
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slug = models.TextField(verbose_name=_('IdP slug'), unique=True, null=True)
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class Meta:
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verbose_name = _('SAML IdP')
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verbose_name_plural = _('SAML IdPs')
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