Merge branch 'develop' of github.com:matrix-org/synapse into erikj/search

5 files changed, 208 insertions, 25 deletions

diff --git a/synapse/appservice/scheduler.py b/synapse/appservice/scheduler.py
index 59b0b1f4ac..44dc2c4744 100644
--- a/synapse/appservice/scheduler.py
+++ b/synapse/appservice/scheduler.py
@@ -224,8 +224,8 @@ class _Recoverer(object):
         self.clock.call_later((2 ** self.backoff_counter), self.retry)
 
     def _backoff(self):
-        # cap the backoff to be around 18h => (2^16) = 65536 secs
-        if self.backoff_counter < 16:
+        # cap the backoff to be around 8.5min => (2^9) = 512 secs
+        if self.backoff_counter < 9:
             self.backoff_counter += 1
         self.recover()
 
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index ee6b881de1..b8e2c81969 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -61,18 +61,37 @@ class JoinedSyncResult(collections.namedtuple("JoinedSyncResult", [
         return bool(self.timeline or self.state or self.ephemeral)
 
 
+class ArchivedSyncResult(collections.namedtuple("JoinedSyncResult", [
+    "room_id",
+    "timeline",
+    "state",
+])):
+    __slots__ = []
+
+    def __nonzero__(self):
+        """Make the result appear empty if there are no updates. This is used
+        to tell if room needs to be part of the sync result.
+        """
+        return bool(self.timeline or self.state)
+
+
 class InvitedSyncResult(collections.namedtuple("InvitedSyncResult", [
     "room_id",
     "invite",
 ])):
     __slots__ = []
 
+    def __nonzero__(self):
+        """Invited rooms should always be reported to the client"""
+        return True
+
 
 class SyncResult(collections.namedtuple("SyncResult", [
     "next_batch",  # Token for the next sync
     "presence",  # List of presence events for the user.
     "joined",  # JoinedSyncResult for each joined room.
     "invited",  # InvitedSyncResult for each invited room.
+    "archived",  # ArchivedSyncResult for each archived room.
 ])):
     __slots__ = []
 
@@ -145,6 +164,10 @@ class SyncHandler(BaseHandler):
         """
         now_token = yield self.event_sources.get_current_token()
 
+        now_token, typing_by_room = yield self.typing_by_room(
+            sync_config, now_token
+        )
+
         presence_stream = self.event_sources.sources["presence"]
         # TODO (mjark): This looks wrong, shouldn't we be getting the presence
         # UP to the present rather than after the present?
@@ -156,15 +179,21 @@ class SyncHandler(BaseHandler):
         )
         room_list = yield self.store.get_rooms_for_user_where_membership_is(
             user_id=sync_config.user.to_string(),
-            membership_list=[Membership.INVITE, Membership.JOIN]
+            membership_list=(
+                Membership.INVITE,
+                Membership.JOIN,
+                Membership.LEAVE,
+                Membership.BAN
+            )
         )
 
         joined = []
         invited = []
+        archived = []
         for event in room_list:
             if event.membership == Membership.JOIN:
                 room_sync = yield self.initial_sync_for_joined_room(
-                    event.room_id, sync_config, now_token,
+                    event.room_id, sync_config, now_token, typing_by_room
                 )
                 joined.append(room_sync)
             elif event.membership == Membership.INVITE:
@@ -173,16 +202,29 @@ class SyncHandler(BaseHandler):
                     room_id=event.room_id,
                     invite=invite,
                 ))
+            elif event.membership in (Membership.LEAVE, Membership.BAN):
+                leave_token = now_token.copy_and_replace(
+                    "room_key", "s%d" % (event.stream_ordering,)
+                )
+                room_sync = yield self.initial_sync_for_archived_room(
+                    sync_config=sync_config,
+                    room_id=event.room_id,
+                    leave_event_id=event.event_id,
+                    leave_token=leave_token,
+                )
+                archived.append(room_sync)
 
         defer.returnValue(SyncResult(
             presence=presence,
             joined=joined,
             invited=invited,
+            archived=archived,
             next_batch=now_token,
         ))
 
     @defer.inlineCallbacks
-    def initial_sync_for_joined_room(self, room_id, sync_config, now_token):
+    def initial_sync_for_joined_room(self, room_id, sync_config, now_token,
+                                     typing_by_room):
         """Sync a room for a client which is starting without any state
         Returns:
             A Deferred JoinedSyncResult.
@@ -201,7 +243,60 @@ class SyncHandler(BaseHandler):
             room_id=room_id,
             timeline=batch,
             state=current_state_events,
-            ephemeral=[],
+            ephemeral=typing_by_room.get(room_id, []),
+        ))
+
+    @defer.inlineCallbacks
+    def typing_by_room(self, sync_config, now_token, since_token=None):
+        """Get the typing events for each room the user is in
+        Args:
+            sync_config (SyncConfig): The flags, filters and user for the sync.
+            now_token (StreamToken): Where the server is currently up to.
+            since_token (StreamToken): Where the server was when the client
+                last synced.
+        Returns:
+            A tuple of the now StreamToken, updated to reflect the which typing
+            events are included, and a dict mapping from room_id to a list of
+            typing events for that room.
+        """
+
+        typing_key = since_token.typing_key if since_token else "0"
+
+        typing_source = self.event_sources.sources["typing"]
+        typing, typing_key = yield typing_source.get_new_events_for_user(
+            user=sync_config.user,
+            from_key=typing_key,
+            limit=sync_config.filter.ephemeral_limit(),
+        )
+        now_token = now_token.copy_and_replace("typing_key", typing_key)
+
+        typing_by_room = {event["room_id"]: [event] for event in typing}
+        for event in typing:
+            event.pop("room_id")
+        logger.debug("Typing %r", typing_by_room)
+
+        defer.returnValue((now_token, typing_by_room))
+
+    @defer.inlineCallbacks
+    def initial_sync_for_archived_room(self, room_id, sync_config,
+                                       leave_event_id, leave_token):
+        """Sync a room for a client which is starting without any state
+        Returns:
+            A Deferred JoinedSyncResult.
+        """
+
+        batch = yield self.load_filtered_recents(
+            room_id, sync_config, leave_token,
+        )
+
+        leave_state = yield self.store.get_state_for_events(
+            [leave_event_id], None
+        )
+
+        defer.returnValue(ArchivedSyncResult(
+            room_id=room_id,
+            timeline=batch,
+            state=leave_state[leave_event_id].values(),
         ))
 
     @defer.inlineCallbacks
@@ -221,18 +316,9 @@ class SyncHandler(BaseHandler):
         )
         now_token = now_token.copy_and_replace("presence_key", presence_key)
 
-        typing_source = self.event_sources.sources["typing"]
-        typing, typing_key = yield typing_source.get_new_events_for_user(
-            user=sync_config.user,
-            from_key=since_token.typing_key,
-            limit=sync_config.filter.ephemeral_limit(),
+        now_token, typing_by_room = yield self.typing_by_room(
+            sync_config, now_token, since_token
         )
-        now_token = now_token.copy_and_replace("typing_key", typing_key)
-
-        typing_by_room = {event["room_id"]: [event] for event in typing}
-        for event in typing:
-            event.pop("room_id")
-        logger.debug("Typing %r", typing_by_room)
 
         rm_handler = self.hs.get_handlers().room_member_handler
         app_service = yield self.store.get_app_service_by_user_id(
@@ -257,18 +343,22 @@ class SyncHandler(BaseHandler):
         )
 
         joined = []
+        archived = []
         if len(room_events) <= timeline_limit:
             # There is no gap in any of the rooms. Therefore we can just
             # partition the new events by room and return them.
             invite_events = []
+            leave_events = []
             events_by_room_id = {}
             for event in room_events:
                 events_by_room_id.setdefault(event.room_id, []).append(event)
                 if event.room_id not in joined_room_ids:
                     if (event.type == EventTypes.Member
-                            and event.membership == Membership.INVITE
                             and event.state_key == sync_config.user.to_string()):
-                        invite_events.append(event)
+                        if event.membership == Membership.INVITE:
+                            invite_events.append(event)
+                        elif event.membership in (Membership.LEAVE, Membership.BAN):
+                            leave_events.append(event)
 
             for room_id in joined_room_ids:
                 recents = events_by_room_id.get(room_id, [])
@@ -296,11 +386,16 @@ class SyncHandler(BaseHandler):
                 )
                 if room_sync:
                     joined.append(room_sync)
+
         else:
             invite_events = yield self.store.get_invites_for_user(
                 sync_config.user.to_string()
             )
 
+            leave_events = yield self.store.get_leave_and_ban_events_for_user(
+                sync_config.user.to_string()
+            )
+
             for room_id in joined_room_ids:
                 room_sync = yield self.incremental_sync_with_gap_for_room(
                     room_id, sync_config, since_token, now_token,
@@ -309,6 +404,12 @@ class SyncHandler(BaseHandler):
                 if room_sync:
                     joined.append(room_sync)
 
+        for leave_event in leave_events:
+            room_sync = yield self.incremental_sync_for_archived_room(
+                sync_config, leave_event, since_token
+            )
+            archived.append(room_sync)
+
         invited = [
             InvitedSyncResult(room_id=event.room_id, invite=event)
             for event in invite_events
@@ -318,6 +419,7 @@ class SyncHandler(BaseHandler):
             presence=presence,
             joined=joined,
             invited=invited,
+            archived=archived,
             next_batch=now_token,
         ))
 
@@ -417,6 +519,55 @@ class SyncHandler(BaseHandler):
         defer.returnValue(room_sync)
 
     @defer.inlineCallbacks
+    def incremental_sync_for_archived_room(self, sync_config, leave_event,
+                                           since_token):
+        """ Get the incremental delta needed to bring the client up to date for
+        the archived room.
+        Returns:
+            A Deferred ArchivedSyncResult
+        """
+
+        stream_token = yield self.store.get_stream_token_for_event(
+            leave_event.event_id
+        )
+
+        leave_token = since_token.copy_and_replace("room_key", stream_token)
+
+        batch = yield self.load_filtered_recents(
+            leave_event.room_id, sync_config, leave_token, since_token,
+        )
+
+        logging.debug("Recents %r", batch)
+
+        # TODO(mjark): This seems racy since this isn't being passed a
+        # token to indicate what point in the stream this is
+        leave_state = yield self.store.get_state_for_events(
+            [leave_event.event_id], None
+        )
+
+        state_events_at_leave = leave_state[leave_event.event_id].values()
+
+        state_at_previous_sync = yield self.get_state_at_previous_sync(
+            leave_event.room_id, since_token=since_token
+        )
+
+        state_events_delta = yield self.compute_state_delta(
+            since_token=since_token,
+            previous_state=state_at_previous_sync,
+            current_state=state_events_at_leave,
+        )
+
+        room_sync = ArchivedSyncResult(
+            room_id=leave_event.room_id,
+            timeline=batch,
+            state=state_events_delta,
+        )
+
+        logging.debug("Room sync: %r", room_sync)
+
+        defer.returnValue(room_sync)
+
+    @defer.inlineCallbacks
     def get_state_at_previous_sync(self, room_id, since_token):
         """ Get the room state at the previous sync the client made.
         Returns:
diff --git a/synapse/rest/client/v1/login.py b/synapse/rest/client/v1/login.py
index dacc416055..e71cf7e43e 100644
--- a/synapse/rest/client/v1/login.py
+++ b/synapse/rest/client/v1/login.py
@@ -101,6 +101,8 @@ class LoginRestServlet(ClientV1RestServlet):
             user_id = yield self.hs.get_datastore().get_user_id_by_threepid(
                 login_submission['medium'], login_submission['address']
             )
+            if not user_id:
+                raise LoginError(403, "", errcode=Codes.FORBIDDEN)
         else:
             user_id = login_submission['user']
 
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index 5e27a859f9..6c4f2b7cd4 100644
--- a/synapse/rest/client/v2_alpha/sync.py
+++ b/synapse/rest/client/v2_alpha/sync.py
@@ -136,6 +136,10 @@ class SyncRestServlet(RestServlet):
             sync_result.invited, filter, time_now, token_id
         )
 
+        archived = self.encode_archived(
+            sync_result.archived, filter, time_now, token_id
+        )
+
         response_content = {
             "presence": self.encode_presence(
                 sync_result.presence, filter, time_now
@@ -143,7 +147,7 @@ class SyncRestServlet(RestServlet):
             "rooms": {
                 "joined": joined,
                 "invited": invited,
-                "archived": {},
+                "archived": archived,
             },
             "next_batch": sync_result.next_batch.to_string(),
         }
@@ -182,14 +186,20 @@ class SyncRestServlet(RestServlet):
 
         return invited
 
+    def encode_archived(self, rooms, filter, time_now, token_id):
+        joined = {}
+        for room in rooms:
+            joined[room.room_id] = self.encode_room(
+                room, filter, time_now, token_id, joined=False
+            )
+
+        return joined
+
     @staticmethod
-    def encode_room(room, filter, time_now, token_id):
+    def encode_room(room, filter, time_now, token_id, joined=True):
         event_map = {}
         state_events = filter.filter_room_state(room.state)
-        timeline_events = filter.filter_room_timeline(room.timeline.events)
-        ephemeral_events = filter.filter_room_ephemeral(room.ephemeral)
         state_event_ids = []
-        timeline_event_ids = []
         for event in state_events:
             # TODO(mjark): Respect formatting requirements in the filter.
             event_map[event.event_id] = serialize_event(
@@ -198,6 +208,8 @@ class SyncRestServlet(RestServlet):
             )
             state_event_ids.append(event.event_id)
 
+        timeline_events = filter.filter_room_timeline(room.timeline.events)
+        timeline_event_ids = []
         for event in timeline_events:
             # TODO(mjark): Respect formatting requirements in the filter.
             event_map[event.event_id] = serialize_event(
@@ -205,6 +217,7 @@ class SyncRestServlet(RestServlet):
                 event_format=format_event_for_client_v2_without_event_id,
             )
             timeline_event_ids.append(event.event_id)
+
         result = {
             "event_map": event_map,
             "timeline": {
@@ -213,8 +226,12 @@ class SyncRestServlet(RestServlet):
                 "limited": room.timeline.limited,
             },
             "state": {"events": state_event_ids},
-            "ephemeral": {"events": ephemeral_events},
         }
+
+        if joined:
+            ephemeral_events = filter.filter_room_ephemeral(room.ephemeral)
+            result["ephemeral"] = {"events": ephemeral_events}
+
         return result
 
 
diff --git a/synapse/storage/roommember.py b/synapse/storage/roommember.py
index dd98dcfda8..ae1ad56d9a 100644
--- a/synapse/storage/roommember.py
+++ b/synapse/storage/roommember.py
@@ -124,6 +124,19 @@ class RoomMemberStore(SQLBaseStore):
             invites.event_id for invite in invites
         ]))
 
+    def get_leave_and_ban_events_for_user(self, user_id):
+        """ Get all the leave events for a user
+        Args:
+            user_id (str): The user ID.
+        Returns:
+            A deferred list of event objects.
+        """
+        return self.get_rooms_for_user_where_membership_is(
+            user_id, (Membership.LEAVE, Membership.BAN)
+        ).addCallback(lambda leaves: self._get_events([
+            leave.event_id for leave in leaves
+        ]))
+
     def get_rooms_for_user_where_membership_is(self, user_id, membership_list):
         """ Get all the rooms for this user where the membership for this user
         matches one in the membership list.