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During the migration the automated script to update the copyright headers accidentally got rid of some of the existing copyright lines. Reinstate them.
282 lines
11 KiB
Python
282 lines
11 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2020 The Matrix.org Foundation C.I.C.
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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from io import BytesIO, StringIO
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from typing import Any, Dict, Optional, Union
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from unittest.mock import Mock
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import signedjson.key
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from canonicaljson import encode_canonical_json
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from signedjson.sign import sign_json
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from signedjson.types import SigningKey
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from twisted.test.proto_helpers import MemoryReactor
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from twisted.web.resource import NoResource, Resource
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from synapse.crypto.keyring import PerspectivesKeyFetcher
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from synapse.http.site import SynapseRequest
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from synapse.rest.key.v2 import KeyResource
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from synapse.server import HomeServer
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from synapse.storage.keys import FetchKeyResult
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from synapse.types import JsonDict
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from synapse.util import Clock
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from synapse.util.httpresourcetree import create_resource_tree
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from synapse.util.stringutils import random_string
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from tests import unittest
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from tests.server import FakeChannel
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from tests.utils import default_config
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class BaseRemoteKeyResourceTestCase(unittest.HomeserverTestCase):
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def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
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self.http_client = Mock()
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return self.setup_test_homeserver(federation_http_client=self.http_client)
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def create_test_resource(self) -> Resource:
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return create_resource_tree(
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{"/_matrix/key/v2": KeyResource(self.hs)}, root_resource=NoResource()
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)
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def expect_outgoing_key_request(
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self, server_name: str, signing_key: SigningKey
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) -> None:
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"""
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Tell the mock http client to expect an outgoing GET request for the given key
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"""
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async def get_json(
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destination: str,
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path: str,
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ignore_backoff: bool = False,
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**kwargs: Any,
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) -> Union[JsonDict, list]:
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self.assertTrue(ignore_backoff)
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self.assertEqual(destination, server_name)
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key_id = "%s:%s" % (signing_key.alg, signing_key.version)
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self.assertEqual(path, "/_matrix/key/v2/server")
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response = {
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"server_name": server_name,
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"old_verify_keys": {},
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"valid_until_ts": 200 * 1000,
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"verify_keys": {
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key_id: {
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"key": signedjson.key.encode_verify_key_base64(
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signedjson.key.get_verify_key(signing_key)
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)
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}
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},
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}
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sign_json(response, server_name, signing_key)
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return response
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self.http_client.get_json.side_effect = get_json
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class RemoteKeyResourceTestCase(BaseRemoteKeyResourceTestCase):
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def make_notary_request(self, server_name: str, key_id: str) -> dict:
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"""Send a GET request to the test server requesting the given key.
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Checks that the response is a 200 and returns the decoded json body.
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"""
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channel = FakeChannel(self.site, self.reactor)
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# channel is a `FakeChannel` but `HTTPChannel` is expected
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req = SynapseRequest(channel, self.site) # type: ignore[arg-type]
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req.content = BytesIO(b"")
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req.requestReceived(
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b"GET",
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b"/_matrix/key/v2/query/%s/%s"
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% (server_name.encode("utf-8"), key_id.encode("utf-8")),
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b"1.1",
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)
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channel.await_result()
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self.assertEqual(channel.code, 200)
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resp = channel.json_body
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return resp
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def test_get_key(self) -> None:
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"""Fetch a remote key"""
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SERVER_NAME = "remote.server"
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testkey = signedjson.key.generate_signing_key("ver1")
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self.expect_outgoing_key_request(SERVER_NAME, testkey)
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resp = self.make_notary_request(SERVER_NAME, "ed25519:ver1")
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keys = resp["server_keys"]
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self.assertEqual(len(keys), 1)
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self.assertIn("ed25519:ver1", keys[0]["verify_keys"])
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self.assertEqual(len(keys[0]["verify_keys"]), 1)
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# it should be signed by both the origin server and the notary
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self.assertIn(SERVER_NAME, keys[0]["signatures"])
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self.assertIn(self.hs.hostname, keys[0]["signatures"])
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def test_get_own_key(self) -> None:
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"""Fetch our own key"""
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testkey = signedjson.key.generate_signing_key("ver1")
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self.expect_outgoing_key_request(self.hs.hostname, testkey)
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resp = self.make_notary_request(self.hs.hostname, "ed25519:ver1")
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keys = resp["server_keys"]
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self.assertEqual(len(keys), 1)
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# it should be signed by both itself, and the notary signing key
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sigs = keys[0]["signatures"]
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self.assertEqual(len(sigs), 1)
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self.assertIn(self.hs.hostname, sigs)
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oursigs = sigs[self.hs.hostname]
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self.assertEqual(len(oursigs), 2)
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# the requested key should be present in the verify_keys section
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self.assertIn("ed25519:ver1", keys[0]["verify_keys"])
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class EndToEndPerspectivesTests(BaseRemoteKeyResourceTestCase):
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"""End-to-end tests of the perspectives fetch case
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The idea here is to actually wire up a PerspectivesKeyFetcher to the notary
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endpoint, to check that the two implementations are compatible.
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"""
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def default_config(self) -> Dict[str, Any]:
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config = super().default_config()
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# replace the signing key with our own
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self.hs_signing_key = signedjson.key.generate_signing_key("kssk")
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strm = StringIO()
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signedjson.key.write_signing_keys(strm, [self.hs_signing_key])
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config["signing_key"] = strm.getvalue()
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return config
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def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
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# make a second homeserver, configured to use the first one as a key notary
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self.http_client2 = Mock()
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config = default_config(name="keyclient")
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config["trusted_key_servers"] = [
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{
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"server_name": self.hs.hostname,
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"verify_keys": {
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"ed25519:%s"
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% (
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self.hs_signing_key.version,
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): signedjson.key.encode_verify_key_base64(
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signedjson.key.get_verify_key(self.hs_signing_key)
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)
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},
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}
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]
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self.hs2 = self.setup_test_homeserver(
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federation_http_client=self.http_client2, config=config
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)
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# wire up outbound POST /key/v2/query requests from hs2 so that they
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# will be forwarded to hs1
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async def post_json(
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destination: str, path: str, data: Optional[JsonDict] = None
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) -> Union[JsonDict, list]:
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self.assertEqual(destination, self.hs.hostname)
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self.assertEqual(
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path,
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"/_matrix/key/v2/query",
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)
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channel = FakeChannel(self.site, self.reactor)
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# channel is a `FakeChannel` but `HTTPChannel` is expected
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req = SynapseRequest(channel, self.site) # type: ignore[arg-type]
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req.content = BytesIO(encode_canonical_json(data))
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req.requestReceived(
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b"POST",
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path.encode("utf-8"),
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b"1.1",
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)
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channel.await_result()
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self.assertEqual(channel.code, 200)
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resp = channel.json_body
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return resp
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self.http_client2.post_json.side_effect = post_json
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def test_get_key(self) -> None:
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"""Fetch a key belonging to a random server"""
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# make up a key to be fetched.
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testkey = signedjson.key.generate_signing_key("abc")
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# we expect hs1 to make a regular key request to the target server
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self.expect_outgoing_key_request("targetserver", testkey)
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keyid = "ed25519:%s" % (testkey.version,)
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fetcher = PerspectivesKeyFetcher(self.hs2)
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d = fetcher.get_keys("targetserver", [keyid], 1000)
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res = self.get_success(d)
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self.assertIn(keyid, res)
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keyres = res[keyid]
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assert isinstance(keyres, FetchKeyResult)
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self.assertEqual(
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signedjson.key.encode_verify_key_base64(keyres.verify_key),
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signedjson.key.encode_verify_key_base64(
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signedjson.key.get_verify_key(testkey)
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),
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)
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def test_get_notary_key(self) -> None:
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"""Fetch a key belonging to the notary server"""
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# make up a key to be fetched. We randomise the keyid to try to get it to
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# appear before the key server signing key sometimes (otherwise we bail out
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# before fetching its signature)
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testkey = signedjson.key.generate_signing_key(random_string(5))
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# we expect hs1 to make a regular key request to itself
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self.expect_outgoing_key_request(self.hs.hostname, testkey)
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keyid = "ed25519:%s" % (testkey.version,)
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fetcher = PerspectivesKeyFetcher(self.hs2)
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d = fetcher.get_keys(self.hs.hostname, [keyid], 1000)
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res = self.get_success(d)
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self.assertIn(keyid, res)
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keyres = res[keyid]
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assert isinstance(keyres, FetchKeyResult)
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self.assertEqual(
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signedjson.key.encode_verify_key_base64(keyres.verify_key),
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signedjson.key.encode_verify_key_base64(
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signedjson.key.get_verify_key(testkey)
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),
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)
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def test_get_notary_keyserver_key(self) -> None:
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"""Fetch the notary's keyserver key"""
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# we expect hs1 to make a regular key request to itself
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self.expect_outgoing_key_request(self.hs.hostname, self.hs_signing_key)
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keyid = "ed25519:%s" % (self.hs_signing_key.version,)
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fetcher = PerspectivesKeyFetcher(self.hs2)
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d = fetcher.get_keys(self.hs.hostname, [keyid], 1000)
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res = self.get_success(d)
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self.assertIn(keyid, res)
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keyres = res[keyid]
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assert isinstance(keyres, FetchKeyResult)
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self.assertEqual(
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signedjson.key.encode_verify_key_base64(keyres.verify_key),
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signedjson.key.encode_verify_key_base64(
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signedjson.key.get_verify_key(self.hs_signing_key)
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),
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)
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