sources/saml: Add NameID Policy field, sent with AuthnRequest
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@ -15,6 +15,7 @@ class SAMLSourceSerializer(ModelSerializer):
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fields = SOURCE_FORM_FIELDS + [
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"issuer",
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"sso_url",
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"name_id_policy",
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"binding_type",
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"slo_url",
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"temporary_user_delete_after",
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@ -23,6 +23,7 @@ class SAMLSourceForm(forms.ModelForm):
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fields = SOURCE_FORM_FIELDS + [
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"issuer",
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"sso_url",
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"name_id_policy",
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"binding_type",
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"slo_url",
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"temporary_user_delete_after",
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@ -0,0 +1,40 @@
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# Generated by Django 3.0.8 on 2020-07-08 13:26
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from django.db import migrations, models
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class Migration(migrations.Migration):
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dependencies = [
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("passbook_sources_saml", "0004_auto_20200708_1207"),
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]
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operations = [
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migrations.AddField(
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model_name="samlsource",
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name="name_id_policy",
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field=models.TextField(
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choices=[
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("urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress", "Email"),
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(
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"urn:oasis:names:tc:SAML:2.0:nameid-format:persistent",
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"Persistent",
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),
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(
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"urn:oasis:names:tc:SAML:2.0:nameid-format:X509SubjectName",
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"X509",
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),
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(
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"urn:oasis:names:tc:SAML:2.0:nameid-format:WindowsDomainQualifiedName",
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"Windows",
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),
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(
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"urn:oasis:names:tc:SAML:2.0:nameid-format:transient",
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"Transient",
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),
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],
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default="urn:oasis:names:tc:SAML:2.0:nameid-format:transient",
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help_text="NameID Policy sent to the IdP. Can be unset, in which case no Policy is sent.",
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),
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),
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]
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@ -7,6 +7,13 @@ from passbook.core.models import Source
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from passbook.core.types import UILoginButton
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from passbook.crypto.models import CertificateKeyPair
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from passbook.providers.saml.utils.time import timedelta_string_validator
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from passbook.sources.saml.processors.constants import (
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SAML_NAME_ID_FORMAT_EMAIL,
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SAML_NAME_ID_FORMAT_PRESISTENT,
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SAML_NAME_ID_FORMAT_TRANSIENT,
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SAML_NAME_ID_FORMAT_WINDOWS,
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SAML_NAME_ID_FORMAT_X509,
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)
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class SAMLBindingTypes(models.TextChoices):
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@ -17,6 +24,16 @@ class SAMLBindingTypes(models.TextChoices):
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POST_AUTO = "POST_AUTO", _("POST Binding with auto-confirmation")
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class SAMLNameIDPolicy(models.TextChoices):
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"""SAML NameID Policies"""
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EMAIL = SAML_NAME_ID_FORMAT_EMAIL
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PERSISTENT = SAML_NAME_ID_FORMAT_PRESISTENT
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X509 = SAML_NAME_ID_FORMAT_X509
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WINDOWS = SAML_NAME_ID_FORMAT_WINDOWS
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TRANSIENT = SAML_NAME_ID_FORMAT_TRANSIENT
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class SAMLSource(Source):
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"""Authenticate using an external SAML Identity Provider."""
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@ -31,6 +48,13 @@ class SAMLSource(Source):
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verbose_name=_("SSO URL"),
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help_text=_("URL that the initial Login request is sent to."),
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)
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name_id_policy = models.TextField(
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choices=SAMLNameIDPolicy.choices,
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default=SAMLNameIDPolicy.TRANSIENT,
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help_text=_(
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"NameID Policy sent to the IdP. Can be unset, in which case no Policy is sent."
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),
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)
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binding_type = models.CharField(
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max_length=100,
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choices=SAMLBindingTypes.choices,
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@ -127,6 +127,13 @@ class Processor:
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def prepare_flow(self, request: HttpRequest) -> HttpResponse:
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"""Prepare flow plan depending on whether or not the user exists"""
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name_id = self._get_name_id()
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# Sanity check, show a warning if NameIDPolicy doesn't match what we go
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if self._source.name_id_policy != name_id.attrib["Format"]:
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LOGGER.warning(
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"NameID from IdP doesn't match our policy",
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expected=self._source.name_id_policy,
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got=name_id.attrib["Format"],
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)
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# transient NameIDs are handeled seperately as they don't have to go through flows.
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if name_id.attrib["Format"] == SAML_NAME_ID_FORMAT_TRANSIENT:
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return self._handle_name_id_transient(request)
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@ -1,11 +1,12 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<samlp:AuthnRequest AssertionConsumerServiceURL="{{ ACS_URL }}"
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Destination="{{ DESTINATION }}"
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ID="{{ AUTHN_REQUEST_ID }}"
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IssueInstant="{{ ISSUE_INSTANT }}"
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ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
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Version="2.0"
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xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol">
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<saml:Issuer xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion">{{ ISSUER }}</saml:Issuer>
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{{ AUTHN_REQUEST_SIGNATURE }}
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<samlp:AuthnRequest AssertionConsumerServiceURL="{{ ACS_URL }}"
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Destination="{{ DESTINATION }}"
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ID="{{ AUTHN_REQUEST_ID }}"
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IssueInstant="{{ ISSUE_INSTANT }}"
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ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
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Version="2.0"
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xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol">
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<saml:Issuer xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion">{{ ISSUER }}</saml:Issuer>
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{{ AUTHN_REQUEST_SIGNATURE }}
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<samlp:NameIDPolicy Format="{{ NAME_ID_POLICY }}"></samlp:NameIDPolicy>
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</samlp:AuthnRequest>
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@ -41,6 +41,7 @@ class InitiateView(View):
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"AUTHN_REQUEST_ID": get_random_id(),
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"ISSUE_INSTANT": get_time_string(),
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"ISSUER": get_issuer(request, source),
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"NAME_ID_POLICY": source.name_id_policy,
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}
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authn_req = get_authnrequest_xml(parameters, signed=False)
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# If the source is configured for Redirect bindings, we can just redirect there
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11
swagger.yaml
11
swagger.yaml
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@ -6505,6 +6505,17 @@ definitions:
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format: uri
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maxLength: 200
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minLength: 1
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name_id_policy:
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title: Name id policy
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description: NameID Policy sent to the IdP. Can be unset, in which case no
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Policy is sent.
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type: string
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enum:
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- urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress
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- urn:oasis:names:tc:SAML:2.0:nameid-format:persistent
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- urn:oasis:names:tc:SAML:2.0:nameid-format:X509SubjectName
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- urn:oasis:names:tc:SAML:2.0:nameid-format:WindowsDomainQualifiedName
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- urn:oasis:names:tc:SAML:2.0:nameid-format:transient
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binding_type:
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title: Binding type
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type: string
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