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authentik/passbook/providers/saml/models.py

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"""passbook saml_idp Models"""
from django.contrib.postgres.fields import ArrayField
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from django.db import models
from django.shortcuts import reverse
from django.utils.translation import ugettext_lazy as _
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from structlog import get_logger
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from passbook.core.models import PropertyMapping, Provider
from passbook.lib.utils.reflection import class_to_path, path_to_class
from passbook.providers.saml.processors.base import Processor
from passbook.providers.saml.utils.time import timedelta_string_validator
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LOGGER = get_logger()
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class SAMLProvider(Provider):
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"""Model to save information about a Remote SAML Endpoint"""
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name = models.TextField()
processor_path = models.CharField(max_length=255, choices=[])
acs_url = models.URLField(verbose_name=_("ACS URL"))
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audience = models.TextField(default="")
issuer = models.TextField()
assertion_valid_not_before = models.TextField(
default="minutes=5",
validators=[timedelta_string_validator],
help_text=_(
(
"Assertion valid not before current time - this value "
"(Format: hours=1;minutes=2;seconds=3)."
)
),
)
assertion_valid_not_on_or_after = models.TextField(
default="minutes=5",
validators=[timedelta_string_validator],
help_text=_(
(
"Assertion not valid on or after current time + this value "
"(Format: hours=1;minutes=2;seconds=3)."
)
),
)
session_valid_not_on_or_after = models.TextField(
default="minutes=86400",
validators=[timedelta_string_validator],
help_text=_(
(
"Session not valid on or after current time + this value "
"(Format: hours=1;minutes=2;seconds=3)."
)
),
)
signing = models.BooleanField(default=True)
signing_cert = models.TextField(verbose_name=_("Singing Certificate"))
signing_key = models.TextField()
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form = "passbook.providers.saml.forms.SAMLProviderForm"
_processor = None
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def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
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self._meta.get_field("processor_path").choices = get_provider_choices()
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@property
def processor(self):
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"""Return selected processor as instance"""
if not self._processor:
try:
self._processor = path_to_class(self.processor_path)(self)
except ImportError as exc:
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LOGGER.warning(exc)
self._processor = None
return self._processor
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def __str__(self):
return f"SAML Provider {self.name}"
def link_download_metadata(self):
"""Get link to download XML metadata for admin interface"""
try:
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# pylint: disable=no-member
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return reverse(
"passbook_providers_saml:saml-metadata",
kwargs={"application": self.application.slug},
)
except Provider.application.RelatedObjectDoesNotExist:
return None
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class Meta:
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verbose_name = _("SAML Provider")
verbose_name_plural = _("SAML Providers")
class SAMLPropertyMapping(PropertyMapping):
"""SAML Property mapping, allowing Name/FriendlyName mapping to a list of strings"""
saml_name = models.TextField(verbose_name="SAML Name")
friendly_name = models.TextField(default=None, blank=True, null=True)
values = ArrayField(
models.TextField(),
help_text=_(
(
"This string can contain string substitutions delimited by {}."
" The following Variables are available: user, request"
)
),
)
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form = "passbook.providers.saml.forms.SAMLPropertyMappingForm"
def __str__(self):
return f"SAML Property Mapping {self.saml_name}"
class Meta:
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verbose_name = _("SAML Property Mapping")
verbose_name_plural = _("SAML Property Mappings")
def get_provider_choices():
"""Return tuple of class_path, class name of all providers."""
return [(class_to_path(x), x.__name__) for x in Processor.__subclasses__()]