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synapse/tests/rest/client/test_login.py

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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright 2019-2021 The Matrix.org Foundation C.I.C.
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
import time
import urllib.parse
from typing import Any, Collection, Dict, List, Optional, Tuple, Union
from unittest.mock import Mock
from urllib.parse import urlencode
import pymacaroons
from typing_extensions import Literal
from twisted.test.proto_helpers import MemoryReactor
from twisted.web.resource import Resource
import synapse.rest.admin
from synapse.api.constants import ApprovalNoticeMedium, LoginType
from synapse.api.errors import Codes
from synapse.appservice import ApplicationService
from synapse.module_api import ModuleApi
from synapse.rest.client import devices, login, logout, register
from synapse.rest.client.account import WhoamiRestServlet
from synapse.rest.synapse.client import build_synapse_client_resource_tree
from synapse.server import HomeServer
from synapse.types import JsonDict, create_requester
from synapse.util import Clock
from tests import unittest
from tests.handlers.test_oidc import HAS_OIDC
from tests.handlers.test_saml import has_saml2
from tests.rest.client.utils import TEST_OIDC_CONFIG
from tests.server import FakeChannel
from tests.test_utils.html_parsers import TestHtmlParser
from tests.unittest import HomeserverTestCase, override_config, skip_unless
try:
from authlib.jose import JsonWebKey, jwt
HAS_JWT = True
except ImportError:
HAS_JWT = False
# synapse server name: used to populate public_baseurl in some tests
SYNAPSE_SERVER_PUBLIC_HOSTNAME = "synapse"
# public_baseurl for some tests. It uses an http:// scheme because
# FakeChannel.isSecure() returns False, so synapse will see the requested uri as
# http://..., so using http in the public_baseurl stops Synapse trying to redirect to
# https://....
BASE_URL = "http://%s/" % (SYNAPSE_SERVER_PUBLIC_HOSTNAME,)
# 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"
# a (valid) url with some annoying characters in. %3D is =, %26 is &, %2B is +
TEST_CLIENT_REDIRECT_URL = 'https://x?<ab c>&q"+%3D%2B"="fö%26=o"'
# the query params in TEST_CLIENT_REDIRECT_URL
EXPECTED_CLIENT_REDIRECT_URL_PARAMS = [("<ab c>", ""), ('q" =+"', '"fö&=o"')]
# Login flows we expect to appear in the list after the normal ones.
ADDITIONAL_LOGIN_FLOWS = [
{"type": "m.login.application_service"},
]
class TestSpamChecker:
def __init__(self, config: None, api: ModuleApi):
api.register_spam_checker_callbacks(
check_login_for_spam=self.check_login_for_spam,
)
@staticmethod
def parse_config(config: JsonDict) -> None:
return None
async def check_login_for_spam(
self,
user_id: str,
device_id: Optional[str],
initial_display_name: Optional[str],
request_info: Collection[Tuple[Optional[str], str]],
auth_provider_id: Optional[str] = None,
) -> Union[
Literal["NOT_SPAM"],
Tuple["synapse.module_api.errors.Codes", JsonDict],
]:
return "NOT_SPAM"
class DenyAllSpamChecker:
def __init__(self, config: None, api: ModuleApi):
api.register_spam_checker_callbacks(
check_login_for_spam=self.check_login_for_spam,
)
@staticmethod
def parse_config(config: JsonDict) -> None:
return None
async def check_login_for_spam(
self,
user_id: str,
device_id: Optional[str],
initial_display_name: Optional[str],
request_info: Collection[Tuple[Optional[str], str]],
auth_provider_id: Optional[str] = None,
) -> Union[
Literal["NOT_SPAM"],
Tuple["synapse.module_api.errors.Codes", JsonDict],
]:
# Return an odd set of values to ensure that they get correctly passed
# to the client.
return Codes.LIMIT_EXCEEDED, {"extra": "value"}
class LoginRestServletTestCase(unittest.HomeserverTestCase):
servlets = [
synapse.rest.admin.register_servlets_for_client_rest_resource,
login.register_servlets,
logout.register_servlets,
devices.register_servlets,
lambda hs, http_server: WhoamiRestServlet(hs).register(http_server),
register.register_servlets,
]
def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
self.hs = self.setup_test_homeserver()
self.hs.config.registration.enable_registration = True
self.hs.config.registration.registrations_require_3pid = []
self.hs.config.registration.auto_join_rooms = []
self.hs.config.captcha.enable_registration_captcha = False
return self.hs
@override_config(
{
"rc_login": {
"address": {"per_second": 0.17, "burst_count": 5},
# Prevent the account login ratelimiter from raising first
#
# This is normally covered by the default test homeserver config
# which sets these values to 10000, but as we're overriding the entire
# rc_login dict here, we need to set this manually as well
"account": {"per_second": 10000, "burst_count": 10000},
},
}
)
def test_POST_ratelimiting_per_address(self) -> None:
# Create different users so we're sure not to be bothered by the per-user
# ratelimiter.
for i in range(6):
self.register_user("kermit" + str(i), "monkey")
for i in range(6):
params = {
"type": "m.login.password",
"identifier": {"type": "m.id.user", "user": "kermit" + str(i)},
"password": "monkey",
}
channel = self.make_request(b"POST", LOGIN_URL, params)
if i == 5:
self.assertEqual(channel.code, 429, msg=channel.result)
retry_after_ms = int(channel.json_body["retry_after_ms"])
retry_header = channel.headers.getRawHeaders("Retry-After")
else:
self.assertEqual(channel.code, 200, msg=channel.result)
# Since we're ratelimiting at 1 request/min, retry_after_ms should be lower
# than 1min.
self.assertLess(retry_after_ms, 6000)
assert retry_header
self.assertLessEqual(int(retry_header[0]), 6)
self.reactor.advance(retry_after_ms / 1000.0 + 1.0)
params = {
"type": "m.login.password",
"identifier": {"type": "m.id.user", "user": "kermit" + str(i)},
"password": "monkey",
}
channel = self.make_request(b"POST", LOGIN_URL, params)
self.assertEqual(channel.code, 200, msg=channel.result)
@override_config(
{
"rc_login": {
"account": {"per_second": 0.17, "burst_count": 5},
# Prevent the address login ratelimiter from raising first
#
# This is normally covered by the default test homeserver config
# which sets these values to 10000, but as we're overriding the entire
# rc_login dict here, we need to set this manually as well
"address": {"per_second": 10000, "burst_count": 10000},
},
}
)
def test_POST_ratelimiting_per_account(self) -> None:
self.register_user("kermit", "monkey")
for i in range(6):
params = {
"type": "m.login.password",
"identifier": {"type": "m.id.user", "user": "kermit"},
"password": "monkey",
}
channel = self.make_request(b"POST", LOGIN_URL, params)
if i == 5:
self.assertEqual(channel.code, 429, msg=channel.result)
retry_after_ms = int(channel.json_body["retry_after_ms"])
retry_header = channel.headers.getRawHeaders("Retry-After")
else:
self.assertEqual(channel.code, 200, msg=channel.result)
# Since we're ratelimiting at 1 request/min, retry_after_ms should be lower
# than 1min.
self.assertLess(retry_after_ms, 6000)
assert retry_header
self.assertLessEqual(int(retry_header[0]), 6)
self.reactor.advance(retry_after_ms / 1000.0)
params = {
"type": "m.login.password",
"identifier": {"type": "m.id.user", "user": "kermit"},
"password": "monkey",
}
channel = self.make_request(b"POST", LOGIN_URL, params)
self.assertEqual(channel.code, 200, msg=channel.result)
@override_config(
{
"rc_login": {
# Prevent the address login ratelimiter from raising first
#
# This is normally covered by the default test homeserver config
# which sets these values to 10000, but as we're overriding the entire
# rc_login dict here, we need to set this manually as well
"address": {"per_second": 10000, "burst_count": 10000},
"failed_attempts": {"per_second": 0.17, "burst_count": 5},
},
}
)
def test_POST_ratelimiting_per_account_failed_attempts(self) -> None:
self.register_user("kermit", "monkey")
for i in range(6):
params = {
"type": "m.login.password",
"identifier": {"type": "m.id.user", "user": "kermit"},
"password": "notamonkey",
}
channel = self.make_request(b"POST", LOGIN_URL, params)
if i == 5:
self.assertEqual(channel.code, 429, msg=channel.result)
retry_after_ms = int(channel.json_body["retry_after_ms"])
retry_header = channel.headers.getRawHeaders("Retry-After")
else:
self.assertEqual(channel.code, 403, msg=channel.result)
# Since we're ratelimiting at 1 request/min, retry_after_ms should be lower
# than 1min.
self.assertLess(retry_after_ms, 6000)
assert retry_header
self.assertLessEqual(int(retry_header[0]), 6)
self.reactor.advance(retry_after_ms / 1000.0 + 1.0)
params = {
"type": "m.login.password",
"identifier": {"type": "m.id.user", "user": "kermit"},
"password": "notamonkey",
}
channel = self.make_request(b"POST", LOGIN_URL, params)
self.assertEqual(channel.code, 403, msg=channel.result)
@override_config({"session_lifetime": "24h"})
def test_soft_logout(self) -> None:
self.register_user("kermit", "monkey")
# we shouldn't be able to make requests without an access token
channel = self.make_request(b"GET", TEST_URL)
self.assertEqual(channel.code, 401, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_MISSING_TOKEN")
# log in as normal
params = {
"type": "m.login.password",
"identifier": {"type": "m.id.user", "user": "kermit"},
"password": "monkey",
}
channel = self.make_request(b"POST", LOGIN_URL, params)
self.assertEqual(channel.code, 200, channel.result)
access_token = channel.json_body["access_token"]
device_id = channel.json_body["device_id"]
# we should now be able to make requests with the access token
channel = self.make_request(b"GET", TEST_URL, access_token=access_token)
self.assertEqual(channel.code, 200, channel.result)
# time passes
self.reactor.advance(24 * 3600)
# ... and we should be soft-logouted
channel = self.make_request(b"GET", TEST_URL, access_token=access_token)
self.assertEqual(channel.code, 401, channel.result)
self.assertEqual(channel.json_body["errcode"], "M_UNKNOWN_TOKEN")
self.assertEqual(channel.json_body["soft_logout"], True)
#
# test behaviour after deleting the expired device
#
# we now log in as a different device
access_token_2 = self.login("kermit", "monkey")
# more requests with the expired token should still return a soft-logout
self.reactor.advance(3600)
channel = self.make_request(b"GET", TEST_URL, access_token=access_token)
self.assertEqual(channel.code, 401, channel.result)
self.assertEqual(channel.json_body["errcode"], "M_UNKNOWN_TOKEN")
self.assertEqual(channel.json_body["soft_logout"], True)
# ... but if we delete that device, it will be a proper logout
self._delete_device(access_token_2, "kermit", "monkey", device_id)
channel = self.make_request(b"GET", TEST_URL, access_token=access_token)
self.assertEqual(channel.code, 401, channel.result)
self.assertEqual(channel.json_body["errcode"], "M_UNKNOWN_TOKEN")
self.assertEqual(channel.json_body["soft_logout"], False)
def _delete_device(
self, access_token: str, user_id: str, password: str, device_id: str
) -> None:
"""Perform the UI-Auth to delete a device"""
channel = self.make_request(
b"DELETE", "devices/" + device_id, access_token=access_token
)
self.assertEqual(channel.code, 401, channel.result)
# check it's a UI-Auth fail
self.assertEqual(
set(channel.json_body.keys()),
{"flows", "params", "session"},
channel.result,
)
auth = {
"type": "m.login.password",
# https://github.com/matrix-org/synapse/issues/5665
# "identifier": {"type": "m.id.user", "user": user_id},
"user": user_id,
"password": password,
"session": channel.json_body["session"],
}
channel = self.make_request(
b"DELETE",
"devices/" + device_id,
access_token=access_token,
content={"auth": auth},
)
self.assertEqual(channel.code, 200, channel.result)
@override_config({"session_lifetime": "24h"})
def test_session_can_hard_logout_after_being_soft_logged_out(self) -> None:
self.register_user("kermit", "monkey")
# log in as normal
access_token = self.login("kermit", "monkey")
# we should now be able to make requests with the access token
channel = self.make_request(b"GET", TEST_URL, access_token=access_token)
self.assertEqual(channel.code, 200, channel.result)
# time passes
self.reactor.advance(24 * 3600)
# ... and we should be soft-logouted
channel = self.make_request(b"GET", TEST_URL, access_token=access_token)
self.assertEqual(channel.code, 401, channel.result)
self.assertEqual(channel.json_body["errcode"], "M_UNKNOWN_TOKEN")
self.assertEqual(channel.json_body["soft_logout"], True)
# Now try to hard logout this session
channel = self.make_request(b"POST", "/logout", access_token=access_token)
self.assertEqual(channel.code, 200, msg=channel.result)
@override_config({"session_lifetime": "24h"})
def test_session_can_hard_logout_all_sessions_after_being_soft_logged_out(
self,
) -> None:
self.register_user("kermit", "monkey")
# log in as normal
access_token = self.login("kermit", "monkey")
# we should now be able to make requests with the access token
channel = self.make_request(b"GET", TEST_URL, access_token=access_token)
self.assertEqual(channel.code, 200, channel.result)
# time passes
self.reactor.advance(24 * 3600)
# ... and we should be soft-logouted
channel = self.make_request(b"GET", TEST_URL, access_token=access_token)
self.assertEqual(channel.code, 401, channel.result)
self.assertEqual(channel.json_body["errcode"], "M_UNKNOWN_TOKEN")
self.assertEqual(channel.json_body["soft_logout"], True)
# Now try to hard log out all of the user's sessions
channel = self.make_request(b"POST", "/logout/all", access_token=access_token)
self.assertEqual(channel.code, 200, msg=channel.result)
def test_login_with_overly_long_device_id_fails(self) -> None:
self.register_user("mickey", "cheese")
# create a device_id longer than 512 characters
device_id = "yolo" * 512
body = {
"type": "m.login.password",
"user": "mickey",
"password": "cheese",
"device_id": device_id,
}
# make a login request with the bad device_id
channel = self.make_request(
"POST",
"/_matrix/client/v3/login",
body,
custom_headers=None,
)
# test that the login fails with the correct error code
self.assertEqual(channel.code, 400)
self.assertEqual(channel.json_body["errcode"], "M_INVALID_PARAM")
@override_config(
{
"experimental_features": {
"msc3866": {
"enabled": True,
"require_approval_for_new_accounts": True,
}
}
}
)
def test_require_approval(self) -> None:
channel = self.make_request(
"POST",
"register",
{
"username": "kermit",
"password": "monkey",
"auth": {"type": LoginType.DUMMY},
},
)
self.assertEqual(403, channel.code, channel.result)
self.assertEqual(Codes.USER_AWAITING_APPROVAL, channel.json_body["errcode"])
self.assertEqual(
ApprovalNoticeMedium.NONE, channel.json_body["approval_notice_medium"]
)
params = {
"type": LoginType.PASSWORD,
"identifier": {"type": "m.id.user", "user": "kermit"},
"password": "monkey",
}
channel = self.make_request("POST", LOGIN_URL, params)
self.assertEqual(403, channel.code, channel.result)
self.assertEqual(Codes.USER_AWAITING_APPROVAL, channel.json_body["errcode"])
self.assertEqual(
ApprovalNoticeMedium.NONE, channel.json_body["approval_notice_medium"]
)
def test_get_login_flows_with_login_via_existing_disabled(self) -> None:
"""GET /login should return m.login.token without get_login_token"""
channel = self.make_request("GET", "/_matrix/client/r0/login")
self.assertEqual(channel.code, 200, channel.result)
flows = {flow["type"]: flow for flow in channel.json_body["flows"]}
self.assertNotIn("m.login.token", flows)
@override_config({"login_via_existing_session": {"enabled": True}})
def test_get_login_flows_with_login_via_existing_enabled(self) -> None:
"""GET /login should return m.login.token with get_login_token true"""
channel = self.make_request("GET", "/_matrix/client/r0/login")
self.assertEqual(channel.code, 200, channel.result)
self.assertCountEqual(
channel.json_body["flows"],
[
{"type": "m.login.token", "get_login_token": True},
{"type": "m.login.password"},
{"type": "m.login.application_service"},
],
)
@override_config(
{
"modules": [
{
"module": TestSpamChecker.__module__
+ "."
+ TestSpamChecker.__qualname__
}
]
}
)
def test_spam_checker_allow(self) -> None:
"""Check that that adding a spam checker doesn't break login."""
self.register_user("kermit", "monkey")
body = {"type": "m.login.password", "user": "kermit", "password": "monkey"}
channel = self.make_request(
"POST",
"/_matrix/client/r0/login",
body,
)
self.assertEqual(channel.code, 200, channel.result)
@override_config(
{
"modules": [
{
"module": DenyAllSpamChecker.__module__
+ "."
+ DenyAllSpamChecker.__qualname__
}
]
}
)
def test_spam_checker_deny(self) -> None:
"""Check that login"""
self.register_user("kermit", "monkey")
body = {"type": "m.login.password", "user": "kermit", "password": "monkey"}
channel = self.make_request(
"POST",
"/_matrix/client/r0/login",
body,
)
self.assertEqual(channel.code, 403, channel.result)
self.assertLessEqual(
{"errcode": Codes.LIMIT_EXCEEDED, "extra": "value"}.items(),
channel.json_body.items(),
)
@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",
},
}
# default OIDC provider
config["oidc_config"] = TEST_OIDC_CONFIG
# additional OIDC providers
config["oidc_providers"] = [
{
"idp_id": "idp1",
"idp_name": "IDP1",
"discover": False,
"issuer": "https://issuer1",
"client_id": "test-client-id",
"client_secret": "test-client-secret",
"scopes": ["profile"],
"authorization_endpoint": "https://issuer1/auth",
"token_endpoint": "https://issuer1/token",
"userinfo_endpoint": "https://issuer1/userinfo",
"user_mapping_provider": {
"config": {"localpart_template": "{{ user.sub }}"}
},
}
]
return config
def create_resource_dict(self) -> Dict[str, Resource]:
d = super().create_resource_dict()
d.update(build_synapse_client_resource_tree(self.hs))
return d
def test_get_login_flows(self) -> None:
"""GET /login should return password and SSO flows"""
channel = self.make_request("GET", "/_matrix/client/r0/login")
self.assertEqual(channel.code, 200, channel.result)
expected_flow_types = [
"m.login.cas",
"m.login.sso",
"m.login.token",
"m.login.password",
] + [f["type"] for f in ADDITIONAL_LOGIN_FLOWS]
self.assertCountEqual(
[f["type"] for f in channel.json_body["flows"]], expected_flow_types
)
flows = {flow["type"]: flow for flow in channel.json_body["flows"]}
self.assertCountEqual(
flows["m.login.sso"]["identity_providers"],
[
{"id": "cas", "name": "CAS"},
{"id": "saml", "name": "SAML"},
{"id": "oidc-idp1", "name": "IDP1"},
{"id": "oidc", "name": "OIDC"},
],
)
def test_multi_sso_redirect(self) -> None:
"""/login/sso/redirect should redirect to an identity picker"""
# first hit the redirect url, which should redirect to our idp picker
channel = self._make_sso_redirect_request(None)
self.assertEqual(channel.code, 302, channel.result)
location_headers = channel.headers.getRawHeaders("Location")
assert location_headers
uri = location_headers[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
html = channel.result["body"].decode("utf-8")
p = TestHtmlParser()
p.feed(html)
p.close()
# there should be a link for each href
returned_idps: List[str] = []
for link in p.links:
path, query = link.split("?", 1)
self.assertEqual(path, "pick_idp")
params = urllib.parse.parse_qs(query)
self.assertEqual(params["redirectUrl"], [TEST_CLIENT_REDIRECT_URL])
returned_idps.append(params["idp"][0])
self.assertCountEqual(returned_idps, ["cas", "oidc", "oidc-idp1", "saml"])
def test_multi_sso_redirect_to_cas(self) -> None:
"""If CAS is chosen, should redirect to the CAS server"""
channel = self.make_request(
"GET",
"/_synapse/client/pick_idp?redirectUrl="
+ urllib.parse.quote_plus(TEST_CLIENT_REDIRECT_URL)
+ "&idp=cas",
shorthand=False,
)
self.assertEqual(channel.code, 302, channel.result)
location_headers = channel.headers.getRawHeaders("Location")
assert location_headers
cas_uri = location_headers[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], TEST_CLIENT_REDIRECT_URL)
def test_multi_sso_redirect_to_saml(self) -> None:
"""If SAML is chosen, should redirect to the SAML server"""
channel = self.make_request(
"GET",
"/_synapse/client/pick_idp?redirectUrl="
+ urllib.parse.quote_plus(TEST_CLIENT_REDIRECT_URL)
+ "&idp=saml",
)
self.assertEqual(channel.code, 302, channel.result)
location_headers = channel.headers.getRawHeaders("Location")
assert location_headers
saml_uri = location_headers[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, TEST_CLIENT_REDIRECT_URL)
def test_login_via_oidc(self) -> None:
"""If OIDC is chosen, should redirect to the OIDC auth endpoint"""
fake_oidc_server = self.helper.fake_oidc_server()
with fake_oidc_server.patch_homeserver(hs=self.hs):
# pick the default OIDC provider
channel = self.make_request(
"GET",
"/_synapse/client/pick_idp?redirectUrl="
+ urllib.parse.quote_plus(TEST_CLIENT_REDIRECT_URL)
+ "&idp=oidc",
)
self.assertEqual(channel.code, 302, channel.result)
location_headers = channel.headers.getRawHeaders("Location")
assert location_headers
oidc_uri = location_headers[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, fake_oidc_server.authorization_endpoint)
# ... and should have set a cookie including the redirect url
cookie_headers = channel.headers.getRawHeaders("Set-Cookie")
assert cookie_headers
cookies: Dict[str, str] = {}
for h in cookie_headers:
key, value = h.split(";")[0].split("=", maxsplit=1)
cookies[key] = value
oidc_session_cookie = cookies["oidc_session"]
macaroon = pymacaroons.Macaroon.deserialize(oidc_session_cookie)
self.assertEqual(
self._get_value_from_macaroon(macaroon, "client_redirect_url"),
TEST_CLIENT_REDIRECT_URL,
)
channel, _ = self.helper.complete_oidc_auth(
fake_oidc_server, oidc_uri, cookies, {"sub": "user1"}
)
# that should serve a confirmation page
self.assertEqual(channel.code, 200, channel.result)
content_type_headers = channel.headers.getRawHeaders("Content-Type")
assert content_type_headers
self.assertTrue(content_type_headers[-1].startswith("text/html"))
p = TestHtmlParser()
p.feed(channel.text_body)
p.close()
# ... which should contain our redirect link
self.assertEqual(len(p.links), 1)
path, query = p.links[0].split("?", 1)
self.assertEqual(path, "https://x")
# it will have url-encoded the params properly, so we'll have to parse them
params = urllib.parse.parse_qsl(
query, keep_blank_values=True, strict_parsing=True, errors="strict"
)
self.assertEqual(params[0:2], EXPECTED_CLIENT_REDIRECT_URL_PARAMS)
self.assertEqual(params[2][0], "loginToken")
# finally, submit the matrix login token to the login API, which gives us our
# matrix access token, mxid, and device id.
login_token = params[2][1]
chan = self.make_request(
"POST",
"/login",
content={"type": "m.login.token", "token": login_token},
)
self.assertEqual(chan.code, 200, chan.result)
self.assertEqual(chan.json_body["user_id"], "@user1:test")
def test_multi_sso_redirect_to_unknown(self) -> None:
"""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)
def test_client_idp_redirect_to_unknown(self) -> None:
"""If the client tries to pick an unknown IdP, return a 404"""
channel = self._make_sso_redirect_request("xxx")
self.assertEqual(channel.code, 404, channel.result)
self.assertEqual(channel.json_body["errcode"], "M_NOT_FOUND")
def test_client_idp_redirect_to_oidc(self) -> None:
"""If the client pick a known IdP, redirect to it"""
fake_oidc_server = self.helper.fake_oidc_server()
with fake_oidc_server.patch_homeserver(hs=self.hs):
channel = self._make_sso_redirect_request("oidc")
self.assertEqual(channel.code, 302, channel.result)
location_headers = channel.headers.getRawHeaders("Location")
assert location_headers
oidc_uri = location_headers[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, fake_oidc_server.authorization_endpoint)
def _make_sso_redirect_request(self, idp_prov: Optional[str] = None) -> FakeChannel:
"""Send a request to /_matrix/client/r0/login/sso/redirect
... possibly specifying an IDP provider
"""
endpoint = "/_matrix/client/r0/login/sso/redirect"
if idp_prov is not None:
endpoint += "/" + idp_prov
endpoint += "?redirectUrl=" + urllib.parse.quote_plus(TEST_CLIENT_REDIRECT_URL)
return self.make_request(
"GET",
endpoint,
custom_headers=[("Host", SYNAPSE_SERVER_PUBLIC_HOSTNAME)],
)
@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 = [
login.register_servlets,
]
def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
self.base_url = "https://matrix.goodserver.com/"
self.redirect_path = "_synapse/client/login/sso/redirect/confirm"
config = self.default_config()
config["public_baseurl"] = (
config.get("public_baseurl") or "https://matrix.goodserver.com:8448"
)
config["cas_config"] = {
"enabled": True,
"server_url": CAS_SERVER,
}
cas_user_id = "username"
self.user_id = "@%s:test" % cas_user_id
async def get_raw(uri: str, args: Any) -> bytes:
"""Return an example response payload from a call to the `/proxyValidate`
endpoint of a CAS server, copied from
https://apereo.github.io/cas/5.0.x/protocol/CAS-Protocol-V2-Specification.html#26-proxyvalidate-cas-20
This needs to be returned by an async function (as opposed to set as the
mock's return value) because the corresponding Synapse code awaits on it.
"""
return (
"""
<cas:serviceResponse xmlns:cas='http://www.yale.edu/tp/cas'>
<cas:authenticationSuccess>
<cas:user>%s</cas:user>
<cas:proxyGrantingTicket>PGTIOU-84678-8a9d...</cas:proxyGrantingTicket>
<cas:proxies>
<cas:proxy>https://proxy2/pgtUrl</cas:proxy>
<cas:proxy>https://proxy1/pgtUrl</cas:proxy>
</cas:proxies>
</cas:authenticationSuccess>
</cas:serviceResponse>
"""
% cas_user_id
).encode("utf-8")
mocked_http_client = Mock(spec=["get_raw"])
mocked_http_client.get_raw.side_effect = get_raw
self.hs = self.setup_test_homeserver(
config=config,
proxied_http_client=mocked_http_client,
)
return self.hs
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
self.deactivate_account_handler = hs.get_deactivate_account_handler()
def test_cas_redirect_confirm(self) -> None:
"""Tests that the SSO login flow serves a confirmation page before redirecting a
user to the redirect URL.
"""
base_url = "/_matrix/client/r0/login/cas/ticket?redirectUrl"
redirect_url = "https://dodgy-site.com/"
url_parts = list(urllib.parse.urlparse(base_url))
query = dict(urllib.parse.parse_qsl(url_parts[4]))
query.update({"redirectUrl": redirect_url})
query.update({"ticket": "ticket"})
url_parts[4] = urllib.parse.urlencode(query)
cas_ticket_url = urllib.parse.urlunparse(url_parts)
# Get Synapse to call the fake CAS and serve the template.
channel = self.make_request("GET", cas_ticket_url)
# Test that the response is HTML.
self.assertEqual(channel.code, 200, channel.result)
content_type_header_value = ""
for header in channel.result.get("headers", []):
if header[0] == b"Content-Type":
content_type_header_value = header[1].decode("utf8")
self.assertTrue(content_type_header_value.startswith("text/html"))
# Test that the body isn't empty.
self.assertTrue(len(channel.result["body"]) > 0)
# And that it contains our redirect link
self.assertIn(redirect_url, channel.result["body"].decode("UTF-8"))
@override_config(
{
"sso": {
"client_whitelist": [
"https://legit-site.com/",
"https://other-site.com/",
]
}
}
)
def test_cas_redirect_whitelisted(self) -> None:
"""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"})
def test_cas_redirect_login_fallback(self) -> None:
self._test_redirect("https://example.com/_matrix/static/client/login")
def _test_redirect(self, redirect_url: str) -> None:
"""Tests that the SSO login flow serves a redirect for the given redirect URL."""
cas_ticket_url = (
"/_matrix/client/r0/login/cas/ticket?redirectUrl=%s&ticket=ticket"
% (urllib.parse.quote(redirect_url))
)
# Get Synapse to call the fake CAS and serve the template.
channel = self.make_request("GET", cas_ticket_url)
self.assertEqual(channel.code, 302)
location_headers = channel.headers.getRawHeaders("Location")
assert location_headers
self.assertEqual(location_headers[0][: len(redirect_url)], redirect_url)
@override_config({"sso": {"client_whitelist": ["https://legit-site.com/"]}})
def test_deactivated_user(self) -> None:
"""Logging in as a deactivated account should error."""
redirect_url = "https://legit-site.com/"
# First login (to create the user).
self._test_redirect(redirect_url)
# Deactivate the account.
self.get_success(
self.deactivate_account_handler.deactivate_account(
self.user_id, False, create_requester(self.user_id)
)
)
# Request the CAS ticket.
cas_ticket_url = (
"/_matrix/client/r0/login/cas/ticket?redirectUrl=%s&ticket=ticket"
% (urllib.parse.quote(redirect_url))
)
# Get Synapse to call the fake CAS and serve the template.
channel = self.make_request("GET", cas_ticket_url)
# Because the user is deactivated they are served an error template.
self.assertEqual(channel.code, 403)
self.assertIn(b"SSO account deactivated", channel.result["body"])
@skip_unless(HAS_JWT, "requires authlib")
class JWTTestCase(unittest.HomeserverTestCase):
servlets = [
synapse.rest.admin.register_servlets_for_client_rest_resource,
login.register_servlets,
]
jwt_secret = "secret"
jwt_algorithm = "HS256"
base_config = {
"enabled": True,
"secret": jwt_secret,
"algorithm": jwt_algorithm,
}
def default_config(self) -> Dict[str, Any]:
config = super().default_config()
# If jwt_config has been defined (eg via @override_config), don't replace it.
if config.get("jwt_config") is None:
config["jwt_config"] = self.base_config
return config
def jwt_encode(self, payload: Dict[str, Any], secret: str = jwt_secret) -> str:
header = {"alg": self.jwt_algorithm}
result: bytes = jwt.encode(header, payload, secret)
return result.decode("ascii")
def jwt_login(self, *args: Any) -> FakeChannel:
params = {"type": "org.matrix.login.jwt", "token": self.jwt_encode(*args)}
channel = self.make_request(b"POST", LOGIN_URL, params)
return channel
def test_login_jwt_valid_registered(self) -> None:
self.register_user("kermit", "monkey")
channel = self.jwt_login({"sub": "kermit"})
self.assertEqual(channel.code, 200, msg=channel.result)
self.assertEqual(channel.json_body["user_id"], "@kermit:test")
def test_login_jwt_valid_unregistered(self) -> None:
channel = self.jwt_login({"sub": "frog"})
self.assertEqual(channel.code, 200, msg=channel.result)
self.assertEqual(channel.json_body["user_id"], "@frog:test")
def test_login_jwt_invalid_signature(self) -> None:
channel = self.jwt_login({"sub": "frog"}, "notsecret")
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(
channel.json_body["error"],
"JWT validation failed: Signature verification failed",
)
def test_login_jwt_expired(self) -> None:
channel = self.jwt_login({"sub": "frog", "exp": 864000})
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(
channel.json_body["error"],
"JWT validation failed: expired_token: The token is expired",
)
def test_login_jwt_not_before(self) -> None:
now = int(time.time())
channel = self.jwt_login({"sub": "frog", "nbf": now + 3600})
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(
channel.json_body["error"],
"JWT validation failed: invalid_token: The token is not valid yet",
)
def test_login_no_sub(self) -> None:
channel = self.jwt_login({"username": "root"})
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(channel.json_body["error"], "Invalid JWT")
@override_config({"jwt_config": {**base_config, "issuer": "test-issuer"}})
def test_login_iss(self) -> None:
"""Test validating the issuer claim."""
# A valid issuer.
channel = self.jwt_login({"sub": "kermit", "iss": "test-issuer"})
self.assertEqual(channel.code, 200, msg=channel.result)
self.assertEqual(channel.json_body["user_id"], "@kermit:test")
# An invalid issuer.
channel = self.jwt_login({"sub": "kermit", "iss": "invalid"})
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(
channel.json_body["error"],
'JWT validation failed: invalid_claim: Invalid claim "iss"',
)
# Not providing an issuer.
channel = self.jwt_login({"sub": "kermit"})
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(
channel.json_body["error"],
'JWT validation failed: missing_claim: Missing "iss" claim',
)
def test_login_iss_no_config(self) -> None:
"""Test providing an issuer claim without requiring it in the configuration."""
channel = self.jwt_login({"sub": "kermit", "iss": "invalid"})
self.assertEqual(channel.code, 200, msg=channel.result)
self.assertEqual(channel.json_body["user_id"], "@kermit:test")
@override_config({"jwt_config": {**base_config, "audiences": ["test-audience"]}})
def test_login_aud(self) -> None:
"""Test validating the audience claim."""
# A valid audience.
channel = self.jwt_login({"sub": "kermit", "aud": "test-audience"})
self.assertEqual(channel.code, 200, msg=channel.result)
self.assertEqual(channel.json_body["user_id"], "@kermit:test")
# An invalid audience.
channel = self.jwt_login({"sub": "kermit", "aud": "invalid"})
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(
channel.json_body["error"],
'JWT validation failed: invalid_claim: Invalid claim "aud"',
)
# Not providing an audience.
channel = self.jwt_login({"sub": "kermit"})
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(
channel.json_body["error"],
'JWT validation failed: missing_claim: Missing "aud" claim',
)
def test_login_aud_no_config(self) -> None:
"""Test providing an audience without requiring it in the configuration."""
channel = self.jwt_login({"sub": "kermit", "aud": "invalid"})
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(
channel.json_body["error"],
'JWT validation failed: invalid_claim: Invalid claim "aud"',
)
def test_login_default_sub(self) -> None:
"""Test reading user ID from the default subject claim."""
channel = self.jwt_login({"sub": "kermit"})
self.assertEqual(channel.code, 200, msg=channel.result)
self.assertEqual(channel.json_body["user_id"], "@kermit:test")
@override_config({"jwt_config": {**base_config, "subject_claim": "username"}})
def test_login_custom_sub(self) -> None:
"""Test reading user ID from a custom subject claim."""
channel = self.jwt_login({"username": "frog"})
self.assertEqual(channel.code, 200, msg=channel.result)
self.assertEqual(channel.json_body["user_id"], "@frog:test")
def test_login_no_token(self) -> None:
params = {"type": "org.matrix.login.jwt"}
channel = self.make_request(b"POST", LOGIN_URL, params)
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(channel.json_body["error"], "Token field for JWT is missing")
def test_deactivated_user(self) -> None:
"""Logging in as a deactivated account should error."""
user_id = self.register_user("kermit", "monkey")
self.get_success(
self.hs.get_deactivate_account_handler().deactivate_account(
user_id, erase_data=False, requester=create_requester(user_id)
)
)
channel = self.jwt_login({"sub": "kermit"})
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_USER_DEACTIVATED")
self.assertEqual(
channel.json_body["error"], "This account has been deactivated"
)
# 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 authlib")
class JWTPubKeyTestCase(unittest.HomeserverTestCase):
servlets = [
login.register_servlets,
]
# This key's pubkey is used as the jwt_secret setting of synapse. Valid
# tokens are signed by this and validated using the pubkey. It is generated
# with `openssl genrsa 512` (not a secure way to generate real keys, but
# good enough for tests!)
jwt_privatekey = "\n".join(
[
"-----BEGIN RSA PRIVATE KEY-----",
"MIIBPAIBAAJBAM50f1Q5gsdmzifLstzLHb5NhfajiOt7TKO1vSEWdq7u9x8SMFiB",
"492RM9W/XFoh8WUfL9uL6Now6tPRDsWv3xsCAwEAAQJAUv7OOSOtiU+wzJq82rnk",
"yR4NHqt7XX8BvkZPM7/+EjBRanmZNSp5kYZzKVaZ/gTOM9+9MwlmhidrUOweKfB/",
"kQIhAPZwHazbjo7dYlJs7wPQz1vd+aHSEH+3uQKIysebkmm3AiEA1nc6mDdmgiUq",
"TpIN8A4MBKmfZMWTLq6z05y/qjKyxb0CIQDYJxCwTEenIaEa4PdoJl+qmXFasVDN",
"ZU0+XtNV7yul0wIhAMI9IhiStIjS2EppBa6RSlk+t1oxh2gUWlIh+YVQfZGRAiEA",
"tqBR7qLZGJ5CVKxWmNhJZGt1QHoUtOch8t9C4IdOZ2g=",
"-----END RSA PRIVATE KEY-----",
]
)
# Generated with `openssl rsa -in foo.key -pubout`, with the the above
# private key placed in foo.key (jwt_privatekey).
jwt_pubkey = "\n".join(
[
"-----BEGIN PUBLIC KEY-----",
"MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAM50f1Q5gsdmzifLstzLHb5NhfajiOt7",
"TKO1vSEWdq7u9x8SMFiB492RM9W/XFoh8WUfL9uL6Now6tPRDsWv3xsCAwEAAQ==",
"-----END PUBLIC KEY-----",
]
)
# This key is used to sign tokens that shouldn't be accepted by synapse.
# Generated just like jwt_privatekey.
bad_privatekey = "\n".join(
[
"-----BEGIN RSA PRIVATE KEY-----",
"MIIBOgIBAAJBAL//SQrKpKbjCCnv/FlasJCv+t3k/MPsZfniJe4DVFhsktF2lwQv",
"gLjmQD3jBUTz+/FndLSBvr3F4OHtGL9O/osCAwEAAQJAJqH0jZJW7Smzo9ShP02L",
"R6HRZcLExZuUrWI+5ZSP7TaZ1uwJzGFspDrunqaVoPobndw/8VsP8HFyKtceC7vY",
"uQIhAPdYInDDSJ8rFKGiy3Ajv5KWISBicjevWHF9dbotmNO9AiEAxrdRJVU+EI9I",
"eB4qRZpY6n4pnwyP0p8f/A3NBaQPG+cCIFlj08aW/PbxNdqYoBdeBA0xDrXKfmbb",
"iwYxBkwL0JCtAiBYmsi94sJn09u2Y4zpuCbJeDPKzWkbuwQh+W1fhIWQJQIhAKR0",
"KydN6cRLvphNQ9c/vBTdlzWxzcSxREpguC7F1J1m",
"-----END RSA PRIVATE KEY-----",
]
)
def default_config(self) -> Dict[str, Any]:
config = super().default_config()
config["jwt_config"] = {
"enabled": True,
"secret": self.jwt_pubkey,
"algorithm": "RS256",
}
return config
def jwt_encode(self, payload: Dict[str, Any], secret: str = jwt_privatekey) -> str:
header = {"alg": "RS256"}
if secret.startswith("-----BEGIN RSA PRIVATE KEY-----"):
secret = JsonWebKey.import_key(secret, {"kty": "RSA"})
result: bytes = jwt.encode(header, payload, secret)
return result.decode("ascii")
def jwt_login(self, *args: Any) -> FakeChannel:
params = {"type": "org.matrix.login.jwt", "token": self.jwt_encode(*args)}
channel = self.make_request(b"POST", LOGIN_URL, params)
return channel
def test_login_jwt_valid(self) -> None:
channel = self.jwt_login({"sub": "kermit"})
self.assertEqual(channel.code, 200, msg=channel.result)
self.assertEqual(channel.json_body["user_id"], "@kermit:test")
def test_login_jwt_invalid_signature(self) -> None:
channel = self.jwt_login({"sub": "frog"}, self.bad_privatekey)
self.assertEqual(channel.code, 403, msg=channel.result)
self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
self.assertEqual(
channel.json_body["error"],
"JWT validation failed: Signature verification failed",
)
AS_USER = "as_user_alice"
class AppserviceLoginRestServletTestCase(unittest.HomeserverTestCase):
servlets = [
login.register_servlets,
register.register_servlets,
]
def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
self.hs = self.setup_test_homeserver()
self.service = ApplicationService(
id="unique_identifier",
token="some_token",
sender="@asbot:example.com",
namespaces={
ApplicationService.NS_USERS: [
{"regex": r"@as_user.*", "exclusive": False}
],
ApplicationService.NS_ROOMS: [],
ApplicationService.NS_ALIASES: [],
},
)
self.another_service = ApplicationService(
id="another__identifier",
token="another_token",
sender="@as2bot:example.com",
namespaces={
ApplicationService.NS_USERS: [
{"regex": r"@as2_user.*", "exclusive": False}
],
ApplicationService.NS_ROOMS: [],
ApplicationService.NS_ALIASES: [],
},
)
self.hs.get_datastores().main.services_cache.append(self.service)
self.hs.get_datastores().main.services_cache.append(self.another_service)
return self.hs
def test_login_appservice_user(self) -> None:
"""Test that an appservice user can use /login"""
self.register_appservice_user(AS_USER, self.service.token)
params = {
"type": login.LoginRestServlet.APPSERVICE_TYPE,
"identifier": {"type": "m.id.user", "user": AS_USER},
}
channel = self.make_request(
b"POST", LOGIN_URL, params, access_token=self.service.token
)
self.assertEqual(channel.code, 200, msg=channel.result)
def test_login_appservice_user_bot(self) -> None:
"""Test that the appservice bot can use /login"""
self.register_appservice_user(AS_USER, self.service.token)
params = {
"type": login.LoginRestServlet.APPSERVICE_TYPE,
"identifier": {"type": "m.id.user", "user": self.service.sender},
}
channel = self.make_request(
b"POST", LOGIN_URL, params, access_token=self.service.token
)
self.assertEqual(channel.code, 200, msg=channel.result)
def test_login_appservice_wrong_user(self) -> None:
"""Test that non-as users cannot login with the as token"""
self.register_appservice_user(AS_USER, self.service.token)
params = {
"type": login.LoginRestServlet.APPSERVICE_TYPE,
"identifier": {"type": "m.id.user", "user": "fibble_wibble"},
}
channel = self.make_request(
b"POST", LOGIN_URL, params, access_token=self.service.token
)
self.assertEqual(channel.code, 403, msg=channel.result)
def test_login_appservice_wrong_as(self) -> None:
"""Test that as users cannot login with wrong as token"""
self.register_appservice_user(AS_USER, self.service.token)
params = {
"type": login.LoginRestServlet.APPSERVICE_TYPE,
"identifier": {"type": "m.id.user", "user": AS_USER},
}
channel = self.make_request(
b"POST", LOGIN_URL, params, access_token=self.another_service.token
)
self.assertEqual(channel.code, 403, msg=channel.result)
def test_login_appservice_no_token(self) -> None:
"""Test that users must provide a token when using the appservice
login method
"""
self.register_appservice_user(AS_USER, self.service.token)
params = {
"type": login.LoginRestServlet.APPSERVICE_TYPE,
"identifier": {"type": "m.id.user", "user": AS_USER},
}
channel = self.make_request(b"POST", LOGIN_URL, params)
self.assertEqual(channel.code, 401, msg=channel.result)
@skip_unless(HAS_OIDC, "requires OIDC")
class UsernamePickerTestCase(HomeserverTestCase):
"""Tests for the username picker flow of SSO login"""
servlets = [login.register_servlets]
def default_config(self) -> Dict[str, Any]:
config = super().default_config()
config["public_baseurl"] = BASE_URL
config["oidc_config"] = {}
config["oidc_config"].update(TEST_OIDC_CONFIG)
config["oidc_config"]["user_mapping_provider"] = {
"config": {"display_name_template": "{{ user.displayname }}"}
}
# whitelist this client URI so we redirect straight to it rather than
# serving a confirmation page
config["sso"] = {"client_whitelist": ["https://x"]}
return config
def create_resource_dict(self) -> Dict[str, Resource]:
d = super().create_resource_dict()
d.update(build_synapse_client_resource_tree(self.hs))
return d
def test_username_picker(self) -> None:
"""Test the happy path of a username picker flow."""
fake_oidc_server = self.helper.fake_oidc_server()
# do the start of the login flow
channel, _ = self.helper.auth_via_oidc(
fake_oidc_server,
{"sub": "tester", "displayname": "Jonny"},
TEST_CLIENT_REDIRECT_URL,
)
# that should redirect to the username picker
self.assertEqual(channel.code, 302, channel.result)
location_headers = channel.headers.getRawHeaders("Location")
assert location_headers
picker_url = location_headers[0]
self.assertEqual(picker_url, "/_synapse/client/pick_username/account_details")
# ... with a username_mapping_session cookie
cookies: Dict[str, str] = {}
channel.extract_cookies(cookies)
self.assertIn("username_mapping_session", cookies)
session_id = cookies["username_mapping_session"]
# introspect the sso handler a bit to check that the username mapping session
# looks ok.
username_mapping_sessions = self.hs.get_sso_handler()._username_mapping_sessions
self.assertIn(
session_id,
username_mapping_sessions,
"session id not found in map",
)
session = username_mapping_sessions[session_id]
self.assertEqual(session.remote_user_id, "tester")
self.assertEqual(session.display_name, "Jonny")
self.assertEqual(session.client_redirect_url, TEST_CLIENT_REDIRECT_URL)
# the expiry time should be about 15 minutes away
expected_expiry = self.clock.time_msec() + (15 * 60 * 1000)
self.assertApproximates(session.expiry_time_ms, expected_expiry, tolerance=1000)
# Now, submit a username to the username picker, which should serve a redirect
# to the completion page
content = urlencode({b"username": b"bobby"}).encode("utf8")
chan = self.make_request(
"POST",
path=picker_url,
content=content,
content_is_form=True,
custom_headers=[
("Cookie", "username_mapping_session=" + session_id),
# old versions of twisted don't do form-parsing without a valid
# content-length header.
("Content-Length", str(len(content))),
],
)
self.assertEqual(chan.code, 302, chan.result)
location_headers = chan.headers.getRawHeaders("Location")
assert location_headers
# send a request to the completion page, which should 302 to the client redirectUrl
chan = self.make_request(
"GET",
path=location_headers[0],
custom_headers=[("Cookie", "username_mapping_session=" + session_id)],
)
self.assertEqual(chan.code, 302, chan.result)
location_headers = chan.headers.getRawHeaders("Location")
assert location_headers
# ensure that the returned location matches the requested redirect URL
path, query = location_headers[0].split("?", 1)
self.assertEqual(path, "https://x")
# it will have url-encoded the params properly, so we'll have to parse them
params = urllib.parse.parse_qsl(
query, keep_blank_values=True, strict_parsing=True, errors="strict"
)
self.assertEqual(params[0:2], EXPECTED_CLIENT_REDIRECT_URL_PARAMS)
self.assertEqual(params[2][0], "loginToken")
# fish the login token out of the returned redirect uri
login_token = params[2][1]
# finally, submit the matrix login token to the login API, which gives us our
# matrix access token, mxid, and device id.
chan = self.make_request(
"POST",
"/login",
content={"type": "m.login.token", "token": login_token},
)
self.assertEqual(chan.code, 200, chan.result)
self.assertEqual(chan.json_body["user_id"], "@bobby:test")
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