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-rw-r--r--synapse/handlers/admin.py6
-rw-r--r--synapse/handlers/device.py12
-rw-r--r--synapse/handlers/initial_sync.py4
-rw-r--r--synapse/handlers/message.py1
-rw-r--r--synapse/handlers/pagination.py4
-rw-r--r--synapse/handlers/room.py15
-rw-r--r--synapse/handlers/sync.py11
7 files changed, 26 insertions, 27 deletions
diff --git a/synapse/handlers/admin.py b/synapse/handlers/admin.py
index 918d0e037c..5e5a64037d 100644
--- a/synapse/handlers/admin.py
+++ b/synapse/handlers/admin.py
@@ -125,8 +125,8 @@ class AdminHandler(BaseHandler):
             else:
                 stream_ordering = room.stream_ordering
 
-            from_key = str(RoomStreamToken(0, 0))
-            to_key = str(RoomStreamToken(None, stream_ordering))
+            from_key = RoomStreamToken(0, 0)
+            to_key = RoomStreamToken(None, stream_ordering)
 
             written_events = set()  # Events that we've processed in this room
 
@@ -153,7 +153,7 @@ class AdminHandler(BaseHandler):
                 if not events:
                     break
 
-                from_key = events[-1].internal_metadata.after
+                from_key = RoomStreamToken.parse(events[-1].internal_metadata.after)
 
                 events = await filter_events_for_client(self.storage, user_id, events)
 
diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py
index 643d71a710..4b0a4f96cc 100644
--- a/synapse/handlers/device.py
+++ b/synapse/handlers/device.py
@@ -29,6 +29,7 @@ from synapse.logging.opentracing import log_kv, set_tag, trace
 from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.types import (
     RoomStreamToken,
+    StreamToken,
     get_domain_from_id,
     get_verify_key_from_cross_signing_key,
 )
@@ -104,18 +105,15 @@ class DeviceWorkerHandler(BaseHandler):
 
     @trace
     @measure_func("device.get_user_ids_changed")
-    async def get_user_ids_changed(self, user_id, from_token):
+    async def get_user_ids_changed(self, user_id: str, from_token: StreamToken):
         """Get list of users that have had the devices updated, or have newly
         joined a room, that `user_id` may be interested in.
-
-        Args:
-            user_id (str)
-            from_token (StreamToken)
         """
 
         set_tag("user_id", user_id)
         set_tag("from_token", from_token)
-        now_room_key = await self.store.get_room_events_max_id()
+        now_room_id = self.store.get_room_max_stream_ordering()
+        now_room_key = RoomStreamToken(None, now_room_id)
 
         room_ids = await self.store.get_rooms_for_user(user_id)
 
@@ -142,7 +140,7 @@ class DeviceWorkerHandler(BaseHandler):
         )
         rooms_changed.update(event.room_id for event in member_events)
 
-        stream_ordering = RoomStreamToken.parse_stream_token(from_token.room_key).stream
+        stream_ordering = from_token.room_key.stream
 
         possibly_changed = set(changed)
         possibly_left = set()
diff --git a/synapse/handlers/initial_sync.py b/synapse/handlers/initial_sync.py
index ddb8f0712b..ba4828c713 100644
--- a/synapse/handlers/initial_sync.py
+++ b/synapse/handlers/initial_sync.py
@@ -25,7 +25,7 @@ from synapse.handlers.presence import format_user_presence_state
 from synapse.logging.context import make_deferred_yieldable, run_in_background
 from synapse.storage.roommember import RoomsForUser
 from synapse.streams.config import PaginationConfig
-from synapse.types import JsonDict, Requester, StreamToken, UserID
+from synapse.types import JsonDict, Requester, RoomStreamToken, StreamToken, UserID
 from synapse.util import unwrapFirstError
 from synapse.util.async_helpers import concurrently_execute
 from synapse.util.caches.response_cache import ResponseCache
@@ -167,7 +167,7 @@ class InitialSyncHandler(BaseHandler):
                         self.state_handler.get_current_state, event.room_id
                     )
                 elif event.membership == Membership.LEAVE:
-                    room_end_token = "s%d" % (event.stream_ordering,)
+                    room_end_token = RoomStreamToken(None, event.stream_ordering,)
                     deferred_room_state = run_in_background(
                         self.state_store.get_state_for_events, [event.event_id]
                     )
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index 276de8f8d0..e54e2b322b 100644
--- a/synapse/handlers/message.py
+++ b/synapse/handlers/message.py
@@ -973,6 +973,7 @@ class EventCreationHandler:
         This should only be run on the instance in charge of persisting events.
         """
         assert self._is_event_writer
+        assert self.storage.persistence is not None
 
         if ratelimit:
             # We check if this is a room admin redacting an event so that we
diff --git a/synapse/handlers/pagination.py b/synapse/handlers/pagination.py
index ec17d3d888..d929a68f7d 100644
--- a/synapse/handlers/pagination.py
+++ b/synapse/handlers/pagination.py
@@ -344,7 +344,7 @@ class PaginationHandler:
             # gets called.
             raise Exception("limit not set")
 
-        room_token = RoomStreamToken.parse(from_token.room_key)
+        room_token = from_token.room_key
 
         with await self.pagination_lock.read(room_id):
             (
@@ -381,7 +381,7 @@ class PaginationHandler:
 
                     if leave_token.topological < max_topo:
                         from_token = from_token.copy_and_replace(
-                            "room_key", leave_token_str
+                            "room_key", leave_token
                         )
 
                 await self.hs.get_handlers().federation_handler.maybe_backfill(
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index a29305f655..53d85ab97d 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -1091,20 +1091,19 @@ class RoomEventSource:
     async def get_new_events(
         self,
         user: UserID,
-        from_key: str,
+        from_key: RoomStreamToken,
         limit: int,
         room_ids: List[str],
         is_guest: bool,
         explicit_room_id: Optional[str] = None,
-    ) -> Tuple[List[EventBase], str]:
+    ) -> Tuple[List[EventBase], RoomStreamToken]:
         # We just ignore the key for now.
 
         to_key = self.get_current_key()
 
-        from_token = RoomStreamToken.parse(from_key)
-        if from_token.topological:
+        if from_key.topological:
             logger.warning("Stream has topological part!!!! %r", from_key)
-            from_key = "s%s" % (from_token.stream,)
+            from_key = RoomStreamToken(None, from_key.stream)
 
         app_service = self.store.get_app_service_by_user_id(user.to_string())
         if app_service:
@@ -1133,14 +1132,14 @@ class RoomEventSource:
                 events[:] = events[:limit]
 
             if events:
-                end_key = events[-1].internal_metadata.after
+                end_key = RoomStreamToken.parse(events[-1].internal_metadata.after)
             else:
                 end_key = to_key
 
         return (events, end_key)
 
-    def get_current_key(self) -> str:
-        return "s%d" % (self.store.get_room_max_stream_ordering(),)
+    def get_current_key(self) -> RoomStreamToken:
+        return RoomStreamToken(None, self.store.get_room_max_stream_ordering())
 
     def get_current_key_for_room(self, room_id: str) -> Awaitable[str]:
         return self.store.get_room_events_max_id(room_id)
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index cc47e8b62c..a615c7c2f0 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -378,7 +378,7 @@ class SyncHandler:
         sync_config = sync_result_builder.sync_config
 
         with Measure(self.clock, "ephemeral_by_room"):
-            typing_key = since_token.typing_key if since_token else "0"
+            typing_key = since_token.typing_key if since_token else 0
 
             room_ids = sync_result_builder.joined_room_ids
 
@@ -402,7 +402,7 @@ class SyncHandler:
                 event_copy = {k: v for (k, v) in event.items() if k != "room_id"}
                 ephemeral_by_room.setdefault(room_id, []).append(event_copy)
 
-            receipt_key = since_token.receipt_key if since_token else "0"
+            receipt_key = since_token.receipt_key if since_token else 0
 
             receipt_source = self.event_sources.sources["receipt"]
             receipts, receipt_key = await receipt_source.get_new_events(
@@ -533,7 +533,7 @@ class SyncHandler:
             if len(recents) > timeline_limit:
                 limited = True
                 recents = recents[-timeline_limit:]
-                room_key = recents[0].internal_metadata.before
+                room_key = RoomStreamToken.parse(recents[0].internal_metadata.before)
 
             prev_batch_token = now_token.copy_and_replace("room_key", room_key)
 
@@ -1322,6 +1322,7 @@ class SyncHandler:
             is_guest=sync_config.is_guest,
             include_offline=include_offline,
         )
+        assert presence_key
         sync_result_builder.now_token = now_token.copy_and_replace(
             "presence_key", presence_key
         )
@@ -1484,7 +1485,7 @@ class SyncHandler:
         if rooms_changed:
             return True
 
-        stream_id = RoomStreamToken.parse_stream_token(since_token.room_key).stream
+        stream_id = since_token.room_key.stream
         for room_id in sync_result_builder.joined_room_ids:
             if self.store.has_room_changed_since(room_id, stream_id):
                 return True
@@ -1750,7 +1751,7 @@ class SyncHandler:
                             continue
 
                 leave_token = now_token.copy_and_replace(
-                    "room_key", "s%d" % (event.stream_ordering,)
+                    "room_key", RoomStreamToken(None, event.stream_ordering)
                 )
                 room_entries.append(
                     RoomSyncResultBuilder(