131 lines
4.7 KiB
Python
131 lines
4.7 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2020 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import urllib.parse
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from io import BytesIO
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from mock import Mock
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import signedjson.key
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from nacl.signing import SigningKey
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from signedjson.sign import sign_json
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from twisted.web.resource import NoResource
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from synapse.http.site import SynapseRequest
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from synapse.rest.key.v2 import KeyApiV2Resource
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from synapse.util.httpresourcetree import create_resource_tree
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from tests import unittest
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from tests.server import FakeChannel, wait_until_result
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class RemoteKeyResourceTestCase(unittest.HomeserverTestCase):
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def make_homeserver(self, reactor, clock):
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self.http_client = Mock()
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return self.setup_test_homeserver(http_client=self.http_client)
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def create_test_json_resource(self):
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return create_resource_tree(
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{"/_matrix/key/v2": KeyApiV2Resource(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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def get_json(destination, path, ignore_backoff=False, **kwargs):
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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(
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path, "/_matrix/key/v2/server/%s" % (urllib.parse.quote(key_id),)
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)
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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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signing_key.verify_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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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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req = SynapseRequest(channel)
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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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wait_until_result(self.reactor, req)
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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):
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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):
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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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# and both keys should be present in the verify_keys section
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self.assertIn("ed25519:ver1", keys[0]["verify_keys"])
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self.assertIn("ed25519:a_lPym", keys[0]["verify_keys"])
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