summary refs log tree commit diff
diff options
context:
space:
mode:
-rw-r--r--synapse/handlers/message.py76
-rw-r--r--synapse/rest/client/v1/room.py3
-rw-r--r--synapse/state.py16
-rw-r--r--tests/test_state.py93
4 files changed, 149 insertions, 39 deletions
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index 92e1180262..14051aee99 100644
--- a/synapse/handlers/message.py
+++ b/synapse/handlers/message.py
@@ -267,17 +267,18 @@ class MessageHandler(BaseHandler):
             member_event = yield self.auth.check_user_was_in_room(room_id, user_id)
             defer.returnValue((member_event.membership, member_event.event_id))
             return
-        except AuthError:
+        except AuthError, auth_error:
+            visibility = yield self.state_handler.get_current_state(
+                room_id, EventTypes.RoomHistoryVisibility, ""
+            )
+            if (
+                visibility and
+                visibility.content["history_visibility"] == "world_readable"
+            ):
+                defer.returnValue((Membership.JOIN, None))
+                return
             if not is_guest:
-                raise
-
-        visibility = yield self.state_handler.get_current_state(
-            room_id, EventTypes.RoomHistoryVisibility, ""
-        )
-        if visibility.content["history_visibility"] == "world_readable":
-            defer.returnValue((Membership.JOIN, None))
-            return
-        else:
+                raise auth_error
             raise AuthError(
                 403, "Guest access not allowed", errcode=Codes.GUEST_ACCESS_FORBIDDEN
             )
@@ -465,7 +466,7 @@ class MessageHandler(BaseHandler):
         defer.returnValue(ret)
 
     @defer.inlineCallbacks
-    def room_initial_sync(self, user_id, room_id, pagin_config=None):
+    def room_initial_sync(self, user_id, room_id, pagin_config=None, is_guest=False):
         """Capture the a snapshot of a room. If user is currently a member of
         the room this will be what is currently in the room. If the user left
         the room this will be what was in the room when they left.
@@ -482,15 +483,19 @@ class MessageHandler(BaseHandler):
             A JSON serialisable dict with the snapshot of the room.
         """
 
-        member_event = yield self.auth.check_user_was_in_room(room_id, user_id)
+        membership, member_event_id = yield self._check_in_room_or_world_readable(
+            room_id,
+            user_id,
+            is_guest
+        )
 
-        if member_event.membership == Membership.JOIN:
+        if membership == Membership.JOIN:
             result = yield self._room_initial_sync_joined(
-                user_id, room_id, pagin_config, member_event
+                user_id, room_id, pagin_config, membership, is_guest
             )
-        elif member_event.membership == Membership.LEAVE:
+        elif membership == Membership.LEAVE:
             result = yield self._room_initial_sync_parted(
-                user_id, room_id, pagin_config, member_event
+                user_id, room_id, pagin_config, membership, member_event_id, is_guest
             )
 
         private_user_data = []
@@ -506,19 +511,19 @@ class MessageHandler(BaseHandler):
 
     @defer.inlineCallbacks
     def _room_initial_sync_parted(self, user_id, room_id, pagin_config,
-                                  member_event):
+                                  membership, member_event_id, is_guest):
         room_state = yield self.store.get_state_for_events(
-            [member_event.event_id], None
+            [member_event_id], None
         )
 
-        room_state = room_state[member_event.event_id]
+        room_state = room_state[member_event_id]
 
         limit = pagin_config.limit if pagin_config else None
         if limit is None:
             limit = 10
 
         stream_token = yield self.store.get_stream_token_for_event(
-            member_event.event_id
+            member_event_id
         )
 
         messages, token = yield self.store.get_recent_events_for_room(
@@ -528,7 +533,7 @@ class MessageHandler(BaseHandler):
         )
 
         messages = yield self._filter_events_for_client(
-            user_id, messages
+            user_id, messages, is_guest=is_guest
         )
 
         start_token = StreamToken(token[0], 0, 0, 0, 0)
@@ -537,7 +542,7 @@ class MessageHandler(BaseHandler):
         time_now = self.clock.time_msec()
 
         defer.returnValue({
-            "membership": member_event.membership,
+            "membership": membership,
             "room_id": room_id,
             "messages": {
                 "chunk": [serialize_event(m, time_now) for m in messages],
@@ -551,7 +556,7 @@ class MessageHandler(BaseHandler):
 
     @defer.inlineCallbacks
     def _room_initial_sync_joined(self, user_id, room_id, pagin_config,
-                                  member_event):
+                                  membership, is_guest):
         current_state = yield self.state.get_current_state(
             room_id=room_id,
         )
@@ -583,12 +588,14 @@ class MessageHandler(BaseHandler):
 
         @defer.inlineCallbacks
         def get_presence():
-            states = yield presence_handler.get_states(
-                target_users=[UserID.from_string(m.user_id) for m in room_members],
-                auth_user=auth_user,
-                as_event=True,
-                check_auth=False,
-            )
+            states = {}
+            if not is_guest:
+                states = yield presence_handler.get_states(
+                    target_users=[UserID.from_string(m.user_id) for m in room_members],
+                    auth_user=auth_user,
+                    as_event=True,
+                    check_auth=False,
+                )
 
             defer.returnValue(states.values())
 
@@ -608,7 +615,7 @@ class MessageHandler(BaseHandler):
         ).addErrback(unwrapFirstError)
 
         messages = yield self._filter_events_for_client(
-            user_id, messages
+            user_id, messages, is_guest=is_guest, require_all_visible_for_guests=False
         )
 
         start_token = now_token.copy_and_replace("room_key", token[0])
@@ -616,8 +623,7 @@ class MessageHandler(BaseHandler):
 
         time_now = self.clock.time_msec()
 
-        defer.returnValue({
-            "membership": member_event.membership,
+        ret = {
             "room_id": room_id,
             "messages": {
                 "chunk": [serialize_event(m, time_now) for m in messages],
@@ -627,4 +633,8 @@ class MessageHandler(BaseHandler):
             "state": state,
             "presence": presence,
             "receipts": receipts,
-        })
+        }
+        if not is_guest:
+            ret["membership"] = membership
+
+        defer.returnValue(ret)
diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py
index c583025e30..d298aee3ab 100644
--- a/synapse/rest/client/v1/room.py
+++ b/synapse/rest/client/v1/room.py
@@ -372,12 +372,13 @@ class RoomInitialSyncRestServlet(ClientV1RestServlet):
 
     @defer.inlineCallbacks
     def on_GET(self, request, room_id):
-        user, _, _ = yield self.auth.get_user_by_req(request)
+        user, _, is_guest = yield self.auth.get_user_by_req(request, allow_guest=True)
         pagination_config = PaginationConfig.from_request(request)
         content = yield self.handlers.message_handler.room_initial_sync(
             room_id=room_id,
             user_id=user.to_string(),
             pagin_config=pagination_config,
+            is_guest=is_guest,
         )
         defer.returnValue((200, content))
 
diff --git a/synapse/state.py b/synapse/state.py
index bb225c39cf..f893df3378 100644
--- a/synapse/state.py
+++ b/synapse/state.py
@@ -307,19 +307,23 @@ class StateHandler(object):
 
         We resolve conflicts in the following order:
             1. power levels
-            2. memberships
-            3. other events.
+            2. join rules
+            3. memberships
+            4. other events.
         """
         resolved_state = {}
         power_key = (EventTypes.PowerLevels, "")
-        if power_key in conflicted_state.items():
-            power_levels = conflicted_state[power_key]
-            resolved_state[power_key] = self._resolve_auth_events(power_levels)
+        if power_key in conflicted_state:
+            events = conflicted_state[power_key]
+            logger.debug("Resolving conflicted power levels %r", events)
+            resolved_state[power_key] = self._resolve_auth_events(
+                events, auth_events)
 
         auth_events.update(resolved_state)
 
         for key, events in conflicted_state.items():
             if key[0] == EventTypes.JoinRules:
+                logger.debug("Resolving conflicted join rules %r", events)
                 resolved_state[key] = self._resolve_auth_events(
                     events,
                     auth_events
@@ -329,6 +333,7 @@ class StateHandler(object):
 
         for key, events in conflicted_state.items():
             if key[0] == EventTypes.Member:
+                logger.debug("Resolving conflicted member lists %r", events)
                 resolved_state[key] = self._resolve_auth_events(
                     events,
                     auth_events
@@ -338,6 +343,7 @@ class StateHandler(object):
 
         for key, events in conflicted_state.items():
             if key not in resolved_state:
+                logger.debug("Resolving conflicted state %r:%r", key, events)
                 resolved_state[key] = self._resolve_normal_events(
                     events, auth_events
                 )
diff --git a/tests/test_state.py b/tests/test_state.py
index 0274c4bc18..e4e995b756 100644
--- a/tests/test_state.py
+++ b/tests/test_state.py
@@ -318,6 +318,99 @@ class StateTestCase(unittest.TestCase):
         )
 
     @defer.inlineCallbacks
+    def test_branch_have_perms_conflict(self):
+        userid1 = "@user_id:example.com"
+        userid2 = "@user_id2:example.com"
+
+        nodes = {
+            "A1": DictObj(
+                type=EventTypes.Create,
+                state_key="",
+                content={"creator": userid1},
+                depth=1,
+            ),
+            "A2": DictObj(
+                type=EventTypes.Member,
+                state_key=userid1,
+                content={"membership": Membership.JOIN},
+                membership=Membership.JOIN,
+            ),
+            "A3": DictObj(
+                type=EventTypes.Member,
+                state_key=userid2,
+                content={"membership": Membership.JOIN},
+                membership=Membership.JOIN,
+            ),
+            "A4": DictObj(
+                type=EventTypes.PowerLevels,
+                state_key="",
+                content={
+                    "events": {"m.room.name": 50},
+                    "users": {userid1: 100,
+                              userid2: 60},
+                },
+            ),
+            "A5": DictObj(
+                type=EventTypes.Name,
+                state_key="",
+            ),
+            "B": DictObj(
+                type=EventTypes.PowerLevels,
+                state_key="",
+                content={
+                    "events": {"m.room.name": 50},
+                    "users": {userid2: 30},
+                },
+            ),
+            "C": DictObj(
+                type=EventTypes.Name,
+                state_key="",
+                sender=userid2,
+            ),
+            "D": DictObj(
+                type=EventTypes.Message,
+            ),
+        }
+        edges = {
+            "A2": ["A1"],
+            "A3": ["A2"],
+            "A4": ["A3"],
+            "A5": ["A4"],
+            "B": ["A5"],
+            "C": ["A5"],
+            "D": ["B", "C"]
+        }
+        self._add_depths(nodes, edges)
+        graph = Graph(nodes, edges)
+
+        store = StateGroupStore()
+        self.store.get_state_groups.side_effect = store.get_state_groups
+
+        context_store = {}
+
+        for event in graph.walk():
+            context = yield self.state.compute_event_context(event)
+            store.store_state_groups(event, context)
+            context_store[event.event_id] = context
+
+        self.assertSetEqual(
+            {"A1", "A2", "A3", "A5", "B"},
+            {e.event_id for e in context_store["D"].current_state.values()}
+        )
+
+    def _add_depths(self, nodes, edges):
+        def _get_depth(ev):
+            node = nodes[ev]
+            if 'depth' not in node:
+                prevs = edges[ev]
+                depth = max(_get_depth(prev) for prev in prevs) + 1
+                node['depth'] = depth
+            return node['depth']
+
+        for n in nodes:
+            _get_depth(n)
+
+    @defer.inlineCallbacks
     def test_annotate_with_old_message(self):
         event = create_event(type="test_message", name="event")