Implementation of MSC2314 (#6176)

tests/federation/test_federation_server.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 # Copyright 2018 New Vector Ltd
+# Copyright 2019 Matrix.org Federation 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.
@@ -16,6 +17,8 @@ import logging
 
 from synapse.events import FrozenEvent
 from synapse.federation.federation_server import server_matches_acl_event
+from synapse.rest import admin
+from synapse.rest.client.v1 import login, room
 
 from tests import unittest
 
@@ -41,6 +44,66 @@ class ServerACLsTestCase(unittest.TestCase):
         self.assertTrue(server_matches_acl_event("1:2:3:4", e))
 
 
+class StateQueryTests(unittest.FederatingHomeserverTestCase):
+
+    servlets = [
+        admin.register_servlets,
+        room.register_servlets,
+        login.register_servlets,
+    ]
+
+    def test_without_event_id(self):
+        """
+        Querying v1/state/<room_id> without an event ID will return the current
+        known state.
+        """
+        u1 = self.register_user("u1", "pass")
+        u1_token = self.login("u1", "pass")
+
+        room_1 = self.helper.create_room_as(u1, tok=u1_token)
+        self.inject_room_member(room_1, "@user:other.example.com", "join")
+
+        request, channel = self.make_request(
+            "GET", "/_matrix/federation/v1/state/%s" % (room_1,)
+        )
+        self.render(request)
+        self.assertEquals(200, channel.code, channel.result)
+
+        self.assertEqual(
+            channel.json_body["room_version"],
+            self.hs.config.default_room_version.identifier,
+        )
+
+        members = set(
+            map(
+                lambda x: x["state_key"],
+                filter(
+                    lambda x: x["type"] == "m.room.member", channel.json_body["pdus"]
+                ),
+            )
+        )
+
+        self.assertEqual(members, set(["@user:other.example.com", u1]))
+        self.assertEqual(len(channel.json_body["pdus"]), 6)
+
+    def test_needs_to_be_in_room(self):
+        """
+        Querying v1/state/<room_id> requires the server
+        be in the room to provide data.
+        """
+        u1 = self.register_user("u1", "pass")
+        u1_token = self.login("u1", "pass")
+
+        room_1 = self.helper.create_room_as(u1, tok=u1_token)
+
+        request, channel = self.make_request(
+            "GET", "/_matrix/federation/v1/state/%s" % (room_1,)
+        )
+        self.render(request)
+        self.assertEquals(403, channel.code, channel.result)
+        self.assertEqual(channel.json_body["errcode"], "M_FORBIDDEN")
+
+
 def _create_acl_event(content):
     return FrozenEvent(
         {