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Merge pull request #9036 from matrix-org/rav/multi_idp/tests

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Add tests for the IdP picker
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Richard van der Hoff 2021-01-08 14:24:41 +00:00 committed by GitHub
commit 12f79da587
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5 changed files with 253 additions and 38 deletions
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1
changelog.d/9036.feature Normal file
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@ -0,0 +1 @@
Add support for multiple SSO Identity Providers.

1
mypy.ini
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@ -103,6 +103,7 @@ files =
tests/replication,
tests/test_utils,
tests/handlers/test_password_providers.py,
tests/rest/client/v1/test_login.py,
tests/rest/client/v2_alpha/test_auth.py,
tests/util/test_stream_change_cache.py

4
synapse/rest/client/v1/login.py
View File

@ -319,9 +319,9 @@ class SsoRedirectServlet(RestServlet):
# register themselves with the main SSOHandler.
if hs.config.cas_enabled:
hs.get_cas_handler()
elif hs.config.saml2_enabled:
if hs.config.saml2_enabled:
hs.get_saml_handler()
elif hs.config.oidc_enabled:
if hs.config.oidc_enabled:
hs.get_oidc_handler()
self._sso_handler = hs.get_sso_handler()

282
tests/rest/client/v1/test_login.py
View File

@ -1,22 +1,67 @@
import json
# -*- coding: utf-8 -*-
# Copyright 2019-2021 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import time
import urllib.parse
from html.parser import HTMLParser
from typing import Any, Dict, Iterable, List, Optional, Tuple, Union
from mock import Mock
try:
import jwt
except ImportError:
jwt = None
import pymacaroons
from twisted.web.resource import Resource
import synapse.rest.admin
from synapse.appservice import ApplicationService
from synapse.rest.client.v1 import login, logout
from synapse.rest.client.v2_alpha import devices, register
from synapse.rest.client.v2_alpha.account import WhoamiRestServlet
from synapse.rest.synapse.client.pick_idp import PickIdpResource
from tests import unittest
from tests.unittest import override_config
from tests.handlers.test_oidc import HAS_OIDC
from tests.handlers.test_saml import has_saml2
from tests.rest.client.v1.utils import TEST_OIDC_AUTH_ENDPOINT, TEST_OIDC_CONFIG
from tests.unittest import override_config, skip_unless
try:
import jwt
HAS_JWT = True
except ImportError:
HAS_JWT = False
# public_base_url used in some tests
BASE_URL = "https://synapse/"
# CAS server used in some tests
CAS_SERVER = "https://fake.test"
# just enough to tell pysaml2 where to redirect to
SAML_SERVER = "https://test.saml.server/idp/sso"
TEST_SAML_METADATA = """
<md:EntityDescriptor xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata">
<md:IDPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">
<md:SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" Location="%(SAML_SERVER)s"/>
</md:IDPSSODescriptor>
</md:EntityDescriptor>
""" % {
"SAML_SERVER": SAML_SERVER,
}
LOGIN_URL = b"/_matrix/client/r0/login"
TEST_URL = b"/_matrix/client/r0/account/whoami"
@ -314,6 +359,184 @@ class LoginRestServletTestCase(unittest.HomeserverTestCase):
self.assertEquals(channel.result["code"], b"200", channel.result)
@skip_unless(has_saml2 and HAS_OIDC, "Requires SAML2 and OIDC")
class MultiSSOTestCase(unittest.HomeserverTestCase):
"""Tests for homeservers with multiple SSO providers enabled"""
servlets = [
login.register_servlets,
]
def default_config(self) -> Dict[str, Any]:
config = super().default_config()
config["public_baseurl"] = BASE_URL
config["cas_config"] = {
"enabled": True,
"server_url": CAS_SERVER,
"service_url": "https://matrix.goodserver.com:8448",
}
config["saml2_config"] = {
"sp_config": {
"metadata": {"inline": [TEST_SAML_METADATA]},
# use the XMLSecurity backend to avoid relying on xmlsec1
"crypto_backend": "XMLSecurity",
},
}
config["oidc_config"] = TEST_OIDC_CONFIG
return config
def create_resource_dict(self) -> Dict[str, Resource]:
d = super().create_resource_dict()
d["/_synapse/client/pick_idp"] = PickIdpResource(self.hs)
return d
def test_multi_sso_redirect(self):
"""/login/sso/redirect should redirect to an identity picker"""
client_redirect_url = "https://x?<abc>"
# first hit the redirect url, which should redirect to our idp picker
channel = self.make_request(
"GET",
"/_matrix/client/r0/login/sso/redirect?redirectUrl=" + client_redirect_url,
)
self.assertEqual(channel.code, 302, channel.result)
uri = channel.headers.getRawHeaders("Location")[0]
# hitting that picker should give us some HTML
channel = self.make_request("GET", uri)
self.assertEqual(channel.code, 200, channel.result)
# parse the form to check it has fields assumed elsewhere in this class
class FormPageParser(HTMLParser):
def __init__(self):
super().__init__()
# the values of the hidden inputs: map from name to value
self.hiddens = {} # type: Dict[str, Optional[str]]
# the values of the radio buttons
self.radios = [] # type: List[Optional[str]]
def handle_starttag(
self, tag: str, attrs: Iterable[Tuple[str, Optional[str]]]
) -> None:
attr_dict = dict(attrs)
if tag == "input":
if attr_dict["type"] == "radio" and attr_dict["name"] == "idp":
self.radios.append(attr_dict["value"])
elif attr_dict["type"] == "hidden":
input_name = attr_dict["name"]
assert input_name
self.hiddens[input_name] = attr_dict["value"]
def error(_, message):
self.fail(message)
p = FormPageParser()
p.feed(channel.result["body"].decode("utf-8"))
p.close()
self.assertCountEqual(p.radios, ["cas", "oidc", "saml"])
self.assertEqual(p.hiddens["redirectUrl"], client_redirect_url)
def test_multi_sso_redirect_to_cas(self):
"""If CAS is chosen, should redirect to the CAS server"""
client_redirect_url = "https://x?<abc>"
channel = self.make_request(
"GET",
"/_synapse/client/pick_idp?redirectUrl=" + client_redirect_url + "&idp=cas",
shorthand=False,
)
self.assertEqual(channel.code, 302, channel.result)
cas_uri = channel.headers.getRawHeaders("Location")[0]
cas_uri_path, cas_uri_query = cas_uri.split("?", 1)
# it should redirect us to the login page of the cas server
self.assertEqual(cas_uri_path, CAS_SERVER + "/login")
# check that the redirectUrl is correctly encoded in the service param - ie, the
# place that CAS will redirect to
cas_uri_params = urllib.parse.parse_qs(cas_uri_query)
service_uri = cas_uri_params["service"][0]
_, service_uri_query = service_uri.split("?", 1)
service_uri_params = urllib.parse.parse_qs(service_uri_query)
self.assertEqual(service_uri_params["redirectUrl"][0], client_redirect_url)
def test_multi_sso_redirect_to_saml(self):
"""If SAML is chosen, should redirect to the SAML server"""
client_redirect_url = "https://x?<abc>"
channel = self.make_request(
"GET",
"/_synapse/client/pick_idp?redirectUrl="
+ client_redirect_url
+ "&idp=saml",
)
self.assertEqual(channel.code, 302, channel.result)
saml_uri = channel.headers.getRawHeaders("Location")[0]
saml_uri_path, saml_uri_query = saml_uri.split("?", 1)
# it should redirect us to the login page of the SAML server
self.assertEqual(saml_uri_path, SAML_SERVER)
# the RelayState is used to carry the client redirect url
saml_uri_params = urllib.parse.parse_qs(saml_uri_query)
relay_state_param = saml_uri_params["RelayState"][0]
self.assertEqual(relay_state_param, client_redirect_url)
def test_multi_sso_redirect_to_oidc(self):
"""If OIDC is chosen, should redirect to the OIDC auth endpoint"""
client_redirect_url = "https://x?<abc>"
channel = self.make_request(
"GET",
"/_synapse/client/pick_idp?redirectUrl="
+ client_redirect_url
+ "&idp=oidc",
)
self.assertEqual(channel.code, 302, channel.result)
oidc_uri = channel.headers.getRawHeaders("Location")[0]
oidc_uri_path, oidc_uri_query = oidc_uri.split("?", 1)
# it should redirect us to the auth page of the OIDC server
self.assertEqual(oidc_uri_path, TEST_OIDC_AUTH_ENDPOINT)
# ... and should have set a cookie including the redirect url
cookies = dict(
h.split(";")[0].split("=", maxsplit=1)
for h in channel.headers.getRawHeaders("Set-Cookie")
)
oidc_session_cookie = cookies["oidc_session"]
macaroon = pymacaroons.Macaroon.deserialize(oidc_session_cookie)
self.assertEqual(
self._get_value_from_macaroon(macaroon, "client_redirect_url"),
client_redirect_url,
)
def test_multi_sso_redirect_to_unknown(self):
"""An unknown IdP should cause a 400"""
channel = self.make_request(
"GET", "/_synapse/client/pick_idp?redirectUrl=http://x&idp=xyz",
)
self.assertEqual(channel.code, 400, channel.result)
@staticmethod
def _get_value_from_macaroon(macaroon: pymacaroons.Macaroon, key: str) -> str:
prefix = key + " = "
for caveat in macaroon.caveats:
if caveat.caveat_id.startswith(prefix):
return caveat.caveat_id[len(prefix) :]
raise ValueError("No %s caveat in macaroon" % (key,))
class CASTestCase(unittest.HomeserverTestCase):
servlets = [
@ -327,7 +550,7 @@ class CASTestCase(unittest.HomeserverTestCase):
config = self.default_config()
config["cas_config"] = {
"enabled": True,
"server_url": "https://fake.test",
"server_url": CAS_SERVER,
"service_url": "https://matrix.goodserver.com:8448",
}
@ -413,8 +636,7 @@ class CASTestCase(unittest.HomeserverTestCase):
}
)
def test_cas_redirect_whitelisted(self):
"""Tests that the SSO login flow serves a redirect to a whitelisted url
"""
"""Tests that the SSO login flow serves a redirect to a whitelisted url"""
self._test_redirect("https://legit-site.com/")
@override_config({"public_baseurl": "https://example.com"})
@ -462,10 +684,8 @@ class CASTestCase(unittest.HomeserverTestCase):
self.assertIn(b"SSO account deactivated", channel.result["body"])
@skip_unless(HAS_JWT, "requires jwt")
class JWTTestCase(unittest.HomeserverTestCase):
if not jwt:
skip = "requires jwt"
servlets = [
synapse.rest.admin.register_servlets_for_client_rest_resource,
login.register_servlets,
@ -481,17 +701,17 @@ class JWTTestCase(unittest.HomeserverTestCase):
self.hs.config.jwt_algorithm = self.jwt_algorithm
return self.hs
def jwt_encode(self, token: str, secret: str = jwt_secret) -> str:
def jwt_encode(self, payload: Dict[str, Any], secret: str = jwt_secret) -> str:
# PyJWT 2.0.0 changed the return type of jwt.encode from bytes to str.
result = jwt.encode(token, secret, self.jwt_algorithm)
result = jwt.encode(
payload, secret, self.jwt_algorithm
) # type: Union[str, bytes]
if isinstance(result, bytes):
return result.decode("ascii")
return result
def jwt_login(self, *args):
params = json.dumps(
{"type": "org.matrix.login.jwt", "token": self.jwt_encode(*args)}
)
params = {"type": "org.matrix.login.jwt", "token": self.jwt_encode(*args)}
channel = self.make_request(b"POST", LOGIN_URL, params)
return channel
@ -623,7 +843,7 @@ class JWTTestCase(unittest.HomeserverTestCase):
)
def test_login_no_token(self):
params = json.dumps({"type": "org.matrix.login.jwt"})
params = {"type": "org.matrix.login.jwt"}
channel = self.make_request(b"POST", LOGIN_URL, params)
self.assertEqual(channel.result["code"], b"403", channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
@ -633,10 +853,8 @@ class JWTTestCase(unittest.HomeserverTestCase):
# The JWTPubKeyTestCase is a complement to JWTTestCase where we instead use
# RSS256, with a public key configured in synapse as "jwt_secret", and tokens
# signed by the private key.
@skip_unless(HAS_JWT, "requires jwt")
class JWTPubKeyTestCase(unittest.HomeserverTestCase):
if not jwt:
skip = "requires jwt"
servlets = [
login.register_servlets,
]
@ -693,17 +911,15 @@ class JWTPubKeyTestCase(unittest.HomeserverTestCase):
self.hs.config.jwt_algorithm = "RS256"
return self.hs
def jwt_encode(self, token: str, secret: str = jwt_privatekey) -> str:
def jwt_encode(self, payload: Dict[str, Any], secret: str = jwt_privatekey) -> str:
# PyJWT 2.0.0 changed the return type of jwt.encode from bytes to str.
result = jwt.encode(token, secret, "RS256")
result = jwt.encode(payload, secret, "RS256") # type: Union[bytes,str]
if isinstance(result, bytes):
return result.decode("ascii")
return result
def jwt_login(self, *args):
params = json.dumps(
{"type": "org.matrix.login.jwt", "token": self.jwt_encode(*args)}
)
params = {"type": "org.matrix.login.jwt", "token": self.jwt_encode(*args)}
channel = self.make_request(b"POST", LOGIN_URL, params)
return channel
@ -773,8 +989,7 @@ class AppserviceLoginRestServletTestCase(unittest.HomeserverTestCase):
return self.hs
def test_login_appservice_user(self):
"""Test that an appservice user can use /login
"""
"""Test that an appservice user can use /login"""
self.register_as_user(AS_USER)
params = {
@ -788,8 +1003,7 @@ class AppserviceLoginRestServletTestCase(unittest.HomeserverTestCase):
self.assertEquals(channel.result["code"], b"200", channel.result)
def test_login_appservice_user_bot(self):
"""Test that the appservice bot can use /login
"""
"""Test that the appservice bot can use /login"""
self.register_as_user(AS_USER)
params = {
@ -803,8 +1017,7 @@ class AppserviceLoginRestServletTestCase(unittest.HomeserverTestCase):
self.assertEquals(channel.result["code"], b"200", channel.result)
def test_login_appservice_wrong_user(self):
"""Test that non-as users cannot login with the as token
"""
"""Test that non-as users cannot login with the as token"""
self.register_as_user(AS_USER)
params = {
@ -818,8 +1031,7 @@ class AppserviceLoginRestServletTestCase(unittest.HomeserverTestCase):
self.assertEquals(channel.result["code"], b"403", channel.result)
def test_login_appservice_wrong_as(self):
"""Test that as users cannot login with wrong as token
"""
"""Test that as users cannot login with wrong as token"""
self.register_as_user(AS_USER)
params = {
@ -834,7 +1046,7 @@ class AppserviceLoginRestServletTestCase(unittest.HomeserverTestCase):
def test_login_appservice_no_token(self):
"""Test that users must provide a token when using the appservice
login method
login method
"""
self.register_as_user(AS_USER)

3
tests/rest/client/v1/utils.py
View File

@ -444,6 +444,7 @@ class RestHelper:
# an 'oidc_config' suitable for login_via_oidc.
TEST_OIDC_AUTH_ENDPOINT = "https://issuer.test/auth"
TEST_OIDC_CONFIG = {
"enabled": True,
"discover": False,
@ -451,7 +452,7 @@ TEST_OIDC_CONFIG = {
"client_id": "test-client-id",
"client_secret": "test-client-secret",
"scopes": ["profile"],
"authorization_endpoint": "https://z",
"authorization_endpoint": TEST_OIDC_AUTH_ENDPOINT,
"token_endpoint": "https://issuer.test/token",
"userinfo_endpoint": "https://issuer.test/userinfo",
"user_mapping_provider": {"config": {"localpart_template": "{{ user.sub }}"}},