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synapse/tests/rest/client/utils.py

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# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2017 Vector Creations Ltd
# Copyright 2018-2019 New Vector Ltd
# 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 json
import re
import time
import urllib.parse
from typing import Any, Dict, Iterable, Mapping, MutableMapping, Optional, Tuple, Union
from unittest.mock import patch
import attr
from twisted.web.resource import Resource
from twisted.web.server import Site
from synapse.api.constants import Membership
from synapse.types import JsonDict
from tests.server import FakeChannel, FakeSite, make_request
from tests.test_utils import FakeResponse
from tests.test_utils.html_parsers import TestHtmlParser
@attr.s
class RestHelper:
"""Contains extra helper functions to quickly and clearly perform a given
REST action, which isn't the focus of the test.
"""
hs = attr.ib()
site = attr.ib(type=Site)
auth_user_id = attr.ib()
def create_room_as(
self,
room_creator: Optional[str] = None,
is_public: Optional[bool] = None,
room_version: Optional[str] = None,
tok: Optional[str] = None,
expect_code: int = 200,
extra_content: Optional[Dict] = None,
custom_headers: Optional[
Iterable[Tuple[Union[bytes, str], Union[bytes, str]]]
] = None,
) -> str:
"""
Create a room.
Args:
room_creator: The user ID to create the room with.
is_public: If True, the `visibility` parameter will be set to
"public". If False, it will be set to "private". If left
unspecified, the server will set it to an appropriate default
(which should be "private" as per the CS spec).
room_version: The room version to create the room as. Defaults to Synapse's
default room version.
tok: The access token to use in the request.
expect_code: The expected HTTP response code.
Returns:
The ID of the newly created room.
"""
temp_id = self.auth_user_id
self.auth_user_id = room_creator
path = "/_matrix/client/r0/createRoom"
content = extra_content or {}
if is_public is not None:
content["visibility"] = "public" if is_public else "private"
if room_version:
content["room_version"] = room_version
if tok:
path = path + "?access_token=%s" % tok
channel = make_request(
self.hs.get_reactor(),
self.site,
"POST",
path,
json.dumps(content).encode("utf8"),
custom_headers=custom_headers,
)
assert channel.result["code"] == b"%d" % expect_code, channel.result
self.auth_user_id = temp_id
if expect_code == 200:
return channel.json_body["room_id"]
def invite(self, room=None, src=None, targ=None, expect_code=200, tok=None):
self.change_membership(
room=room,
src=src,
targ=targ,
tok=tok,
membership=Membership.INVITE,
expect_code=expect_code,
)
def join(self, room=None, user=None, expect_code=200, tok=None):
self.change_membership(
room=room,
src=user,
targ=user,
tok=tok,
membership=Membership.JOIN,
expect_code=expect_code,
)
def leave(self, room=None, user=None, expect_code=200, tok=None):
self.change_membership(
room=room,
src=user,
targ=user,
tok=tok,
membership=Membership.LEAVE,
expect_code=expect_code,
)
def change_membership(
self,
room: str,
src: str,
targ: str,
membership: str,
extra_data: Optional[dict] = None,
tok: Optional[str] = None,
expect_code: int = 200,
expect_errcode: str = None,
) -> None:
"""
Send a membership state event into a room.
Args:
room: The ID of the room to send to
src: The mxid of the event sender
targ: The mxid of the event's target. The state key
membership: The type of membership event
extra_data: Extra information to include in the content of the event
tok: The user access token to use
expect_code: The expected HTTP response code
expect_errcode: The expected Matrix error code
"""
temp_id = self.auth_user_id
self.auth_user_id = src
path = "/_matrix/client/r0/rooms/%s/state/m.room.member/%s" % (room, targ)
if tok:
path = path + "?access_token=%s" % tok
data = {"membership": membership}
data.update(extra_data or {})
channel = make_request(
self.hs.get_reactor(),
self.site,
"PUT",
path,
json.dumps(data).encode("utf8"),
)
assert (
int(channel.result["code"]) == expect_code
), "Expected: %d, got: %d, resp: %r" % (
expect_code,
int(channel.result["code"]),
channel.result["body"],
)
if expect_errcode:
assert (
str(channel.json_body["errcode"]) == expect_errcode
), "Expected: %r, got: %r, resp: %r" % (
expect_errcode,
channel.json_body["errcode"],
channel.result["body"],
)
self.auth_user_id = temp_id
def send(
self,
room_id,
body=None,
txn_id=None,
tok=None,
expect_code=200,
custom_headers: Optional[
Iterable[Tuple[Union[bytes, str], Union[bytes, str]]]
] = None,
):
if body is None:
body = "body_text_here"
content = {"msgtype": "m.text", "body": body}
return self.send_event(
room_id,
"m.room.message",
content,
txn_id,
tok,
expect_code,
custom_headers=custom_headers,
)
def send_event(
self,
room_id,
type,
content: Optional[dict] = None,
txn_id=None,
tok=None,
expect_code=200,
custom_headers: Optional[
Iterable[Tuple[Union[bytes, str], Union[bytes, str]]]
] = None,
):
if txn_id is None:
txn_id = "m%s" % (str(time.time()))
path = "/_matrix/client/r0/rooms/%s/send/%s/%s" % (room_id, type, txn_id)
if tok:
path = path + "?access_token=%s" % tok
channel = make_request(
self.hs.get_reactor(),
self.site,
"PUT",
path,
json.dumps(content or {}).encode("utf8"),
custom_headers=custom_headers,
)
assert (
int(channel.result["code"]) == expect_code
), "Expected: %d, got: %d, resp: %r" % (
expect_code,
int(channel.result["code"]),
channel.result["body"],
)
return channel.json_body
def _read_write_state(
self,
room_id: str,
event_type: str,
body: Optional[Dict[str, Any]],
tok: str,
expect_code: int = 200,
state_key: str = "",
method: str = "GET",
) -> Dict:
"""Read or write some state from a given room
Args:
room_id:
event_type: The type of state event
body: Body that is sent when making the request. The content of the state event.
If None, the request to the server will have an empty body
tok: The access token to use
expect_code: The HTTP code to expect in the response
state_key:
method: "GET" or "PUT" for reading or writing state, respectively
Returns:
The response body from the server
Raises:
AssertionError: if expect_code doesn't match the HTTP code we received
"""
path = "/_matrix/client/r0/rooms/%s/state/%s/%s" % (
room_id,
event_type,
state_key,
)
if tok:
path = path + "?access_token=%s" % tok
# Set request body if provided
content = b""
if body is not None:
content = json.dumps(body).encode("utf8")
channel = make_request(self.hs.get_reactor(), self.site, method, path, content)
assert (
int(channel.result["code"]) == expect_code
), "Expected: %d, got: %d, resp: %r" % (
expect_code,
int(channel.result["code"]),
channel.result["body"],
)
return channel.json_body
def get_state(
self,
room_id: str,
event_type: str,
tok: str,
expect_code: int = 200,
state_key: str = "",
):
"""Gets some state from a room
Args:
room_id:
event_type: The type of state event
tok: The access token to use
expect_code: The HTTP code to expect in the response
state_key:
Returns:
The response body from the server
Raises:
AssertionError: if expect_code doesn't match the HTTP code we received
"""
return self._read_write_state(
room_id, event_type, None, tok, expect_code, state_key, method="GET"
)
def send_state(
self,
room_id: str,
event_type: str,
body: Dict[str, Any],
tok: str,
expect_code: int = 200,
state_key: str = "",
):
"""Set some state in a room
Args:
room_id:
event_type: The type of state event
body: Body that is sent when making the request. The content of the state event.
tok: The access token to use
expect_code: The HTTP code to expect in the response
state_key:
Returns:
The response body from the server
Raises:
AssertionError: if expect_code doesn't match the HTTP code we received
"""
return self._read_write_state(
room_id, event_type, body, tok, expect_code, state_key, method="PUT"
)
def upload_media(
self,
resource: Resource,
image_data: bytes,
tok: str,
filename: str = "test.png",
expect_code: int = 200,
) -> dict:
"""Upload a piece of test media to the media repo
Args:
resource: The resource that will handle the upload request
image_data: The image data to upload
tok: The user token to use during the upload
filename: The filename of the media to be uploaded
expect_code: The return code to expect from attempting to upload the media
"""
image_length = len(image_data)
path = "/_matrix/media/r0/upload?filename=%s" % (filename,)
channel = make_request(
self.hs.get_reactor(),
FakeSite(resource, self.hs.get_reactor()),
"POST",
path,
content=image_data,
access_token=tok,
custom_headers=[(b"Content-Length", str(image_length))],
)
assert channel.code == expect_code, "Expected: %d, got: %d, resp: %r" % (
expect_code,
int(channel.result["code"]),
channel.result["body"],
)
return channel.json_body
def login_via_oidc(self, remote_user_id: str) -> JsonDict:
"""Log in (as a new user) via OIDC
Returns the result of the final token login.
Requires that "oidc_config" in the homeserver config be set appropriately
(TEST_OIDC_CONFIG is a suitable example) - and by implication, needs a
"public_base_url".
Also requires the login servlet and the OIDC callback resource to be mounted at
the normal places.
"""
client_redirect_url = "https://x"
channel = self.auth_via_oidc({"sub": remote_user_id}, client_redirect_url)
# expect a confirmation page
assert channel.code == 200, channel.result
# fish the matrix login token out of the body of the confirmation page
m = re.search(
'a href="%s.*loginToken=([^"]*)"' % (client_redirect_url,),
channel.text_body,
)
assert m, channel.text_body
login_token = m.group(1)
# finally, submit the matrix login token to the login API, which gives us our
# matrix access token and device id.
channel = make_request(
self.hs.get_reactor(),
self.site,
"POST",
"/login",
content={"type": "m.login.token", "token": login_token},
)
assert channel.code == 200
return channel.json_body
def auth_via_oidc(
self,
user_info_dict: JsonDict,
client_redirect_url: Optional[str] = None,
ui_auth_session_id: Optional[str] = None,
) -> FakeChannel:
"""Perform an OIDC authentication flow via a mock OIDC provider.
This can be used for either login or user-interactive auth.
Starts by making a request to the relevant synapse redirect endpoint, which is
expected to serve a 302 to the OIDC provider. We then make a request to the
OIDC callback endpoint, intercepting the HTTP requests that will get sent back
to the OIDC provider.
Requires that "oidc_config" in the homeserver config be set appropriately
(TEST_OIDC_CONFIG is a suitable example) - and by implication, needs a
"public_base_url".
Also requires the login servlet and the OIDC callback resource to be mounted at
the normal places.
Args:
user_info_dict: the remote userinfo that the OIDC provider should present.
Typically this should be '{"sub": "<remote user id>"}'.
client_redirect_url: for a login flow, the client redirect URL to pass to
the login redirect endpoint
ui_auth_session_id: if set, we will perform a UI Auth flow. The session id
of the UI auth.
Returns:
A FakeChannel containing the result of calling the OIDC callback endpoint.
Note that the response code may be a 200, 302 or 400 depending on how things
went.
"""
cookies = {}
# if we're doing a ui auth, hit the ui auth redirect endpoint
if ui_auth_session_id:
# can't set the client redirect url for UI Auth
assert client_redirect_url is None
oauth_uri = self.initiate_sso_ui_auth(ui_auth_session_id, cookies)
else:
# otherwise, hit the login redirect endpoint
oauth_uri = self.initiate_sso_login(client_redirect_url, cookies)
# we now have a URI for the OIDC IdP, but we skip that and go straight
# back to synapse's OIDC callback resource. However, we do need the "state"
# param that synapse passes to the IdP via query params, as well as the cookie
# that synapse passes to the client.
oauth_uri_path, _ = oauth_uri.split("?", 1)
assert oauth_uri_path == TEST_OIDC_AUTH_ENDPOINT, (
"unexpected SSO URI " + oauth_uri_path
)
return self.complete_oidc_auth(oauth_uri, cookies, user_info_dict)
def complete_oidc_auth(
self,
oauth_uri: str,
cookies: Mapping[str, str],
user_info_dict: JsonDict,
) -> FakeChannel:
"""Mock out an OIDC authentication flow
Assumes that an OIDC auth has been initiated by one of initiate_sso_login or
initiate_sso_ui_auth; completes the OIDC bits of the flow by making a request to
Synapse's OIDC callback endpoint, intercepting the HTTP requests that will get
sent back to the OIDC provider.
Requires the OIDC callback resource to be mounted at the normal place.
Args:
oauth_uri: the OIDC URI returned by synapse's redirect endpoint (ie,
from initiate_sso_login or initiate_sso_ui_auth).
cookies: the cookies set by synapse's redirect endpoint, which will be
sent back to the callback endpoint.
user_info_dict: the remote userinfo that the OIDC provider should present.
Typically this should be '{"sub": "<remote user id>"}'.
Returns:
A FakeChannel containing the result of calling the OIDC callback endpoint.
"""
_, oauth_uri_qs = oauth_uri.split("?", 1)
params = urllib.parse.parse_qs(oauth_uri_qs)
callback_uri = "%s?%s" % (
urllib.parse.urlparse(params["redirect_uri"][0]).path,
urllib.parse.urlencode({"state": params["state"][0], "code": "TEST_CODE"}),
)
# before we hit the callback uri, stub out some methods in the http client so
# that we don't have to handle full HTTPS requests.
# (expected url, json response) pairs, in the order we expect them.
expected_requests = [
# first we get a hit to the token endpoint, which we tell to return
# a dummy OIDC access token
(TEST_OIDC_TOKEN_ENDPOINT, {"access_token": "TEST"}),
# and then one to the user_info endpoint, which returns our remote user id.
(TEST_OIDC_USERINFO_ENDPOINT, user_info_dict),
]
async def mock_req(method: str, uri: str, data=None, headers=None):
(expected_uri, resp_obj) = expected_requests.pop(0)
assert uri == expected_uri
resp = FakeResponse(
code=200,
phrase=b"OK",
body=json.dumps(resp_obj).encode("utf-8"),
)
return resp
with patch.object(self.hs.get_proxied_http_client(), "request", mock_req):
# now hit the callback URI with the right params and a made-up code
channel = make_request(
self.hs.get_reactor(),
self.site,
"GET",
callback_uri,
custom_headers=[
("Cookie", "%s=%s" % (k, v)) for (k, v) in cookies.items()
],
)
return channel
def initiate_sso_login(
self, client_redirect_url: Optional[str], cookies: MutableMapping[str, str]
) -> str:
"""Make a request to the login-via-sso redirect endpoint, and return the target
Assumes that exactly one SSO provider has been configured. Requires the login
servlet to be mounted.
Args:
client_redirect_url: the client redirect URL to pass to the login redirect
endpoint
cookies: any cookies returned will be added to this dict
Returns:
the URI that the client gets redirected to (ie, the SSO server)
"""
params = {}
if client_redirect_url:
params["redirectUrl"] = client_redirect_url
# hit the redirect url (which should redirect back to the redirect url. This
# is the easiest way of figuring out what the Host header ought to be set to
# to keep Synapse happy.
channel = make_request(
self.hs.get_reactor(),
self.site,
"GET",
"/_matrix/client/r0/login/sso/redirect?" + urllib.parse.urlencode(params),
)
assert channel.code == 302
# hit the redirect url again with the right Host header, which should now issue
# a cookie and redirect to the SSO provider.
location = channel.headers.getRawHeaders("Location")[0]
parts = urllib.parse.urlsplit(location)
channel = make_request(
self.hs.get_reactor(),
self.site,
"GET",
urllib.parse.urlunsplit(("", "") + parts[2:]),
custom_headers=[
("Host", parts[1]),
],
)
assert channel.code == 302
channel.extract_cookies(cookies)
return channel.headers.getRawHeaders("Location")[0]
def initiate_sso_ui_auth(
self, ui_auth_session_id: str, cookies: MutableMapping[str, str]
) -> str:
"""Make a request to the ui-auth-via-sso endpoint, and return the target
Assumes that exactly one SSO provider has been configured. Requires the
AuthRestServlet to be mounted.
Args:
ui_auth_session_id: the session id of the UI auth
cookies: any cookies returned will be added to this dict
Returns:
the URI that the client gets linked to (ie, the SSO server)
"""
sso_redirect_endpoint = (
"/_matrix/client/r0/auth/m.login.sso/fallback/web?"
+ urllib.parse.urlencode({"session": ui_auth_session_id})
)
# hit the redirect url (which will issue a cookie and state)
channel = make_request(
self.hs.get_reactor(), self.site, "GET", sso_redirect_endpoint
)
# that should serve a confirmation page
assert channel.code == 200, channel.text_body
channel.extract_cookies(cookies)
# parse the confirmation page to fish out the link.
p = TestHtmlParser()
p.feed(channel.text_body)
p.close()
assert len(p.links) == 1, "not exactly one link in confirmation page"
oauth_uri = p.links[0]
return oauth_uri
# an 'oidc_config' suitable for login_via_oidc.
TEST_OIDC_AUTH_ENDPOINT = "https://issuer.test/auth"
TEST_OIDC_TOKEN_ENDPOINT = "https://issuer.test/token"
TEST_OIDC_USERINFO_ENDPOINT = "https://issuer.test/userinfo"
TEST_OIDC_CONFIG = {
"enabled": True,
"discover": False,
"issuer": "https://issuer.test",
"client_id": "test-client-id",
"client_secret": "test-client-secret",
"scopes": ["profile"],
"authorization_endpoint": TEST_OIDC_AUTH_ENDPOINT,
"token_endpoint": TEST_OIDC_TOKEN_ENDPOINT,
"userinfo_endpoint": TEST_OIDC_USERINFO_ENDPOINT,
"user_mapping_provider": {"config": {"localpart_template": "{{ user.sub }}"}},
}
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