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-rw-r--r--synapse/rest/admin/users.py4
-rw-r--r--synapse/rest/client/v1/room.py25
-rw-r--r--synapse/rest/client/v2_alpha/capabilities.py8
-rw-r--r--synapse/rest/client/v2_alpha/keys.py2
-rw-r--r--synapse/rest/client/v2_alpha/relations.py42
-rw-r--r--synapse/rest/client/v2_alpha/sync.py2
-rw-r--r--synapse/rest/consent/consent_resource.py2
-rw-r--r--synapse/rest/media/v1/preview_url_resource.py10
8 files changed, 56 insertions, 39 deletions
diff --git a/synapse/rest/admin/users.py b/synapse/rest/admin/users.py
index 589e47fa47..6736536172 100644
--- a/synapse/rest/admin/users.py
+++ b/synapse/rest/admin/users.py
@@ -90,8 +90,8 @@ class UsersRestServletV2(RestServlet):
                 errcode=Codes.INVALID_PARAM,
             )
 
-        user_id = parse_string(request, "user_id", default=None)
-        name = parse_string(request, "name", default=None)
+        user_id = parse_string(request, "user_id")
+        name = parse_string(request, "name")
         guests = parse_boolean(request, "guests", default=True)
         deactivated = parse_boolean(request, "deactivated", default=False)
 
diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py
index 31a1193cd3..5d309a534c 100644
--- a/synapse/rest/client/v1/room.py
+++ b/synapse/rest/client/v1/room.py
@@ -413,7 +413,7 @@ class RoomBatchSendEventRestServlet(TransactionRestServlet):
         assert_params_in_dict(body, ["state_events_at_start", "events"])
 
         prev_events_from_query = parse_strings_from_args(request.args, "prev_event")
-        chunk_id_from_query = parse_string(request, "chunk_id", default=None)
+        chunk_id_from_query = parse_string(request, "chunk_id")
 
         if prev_events_from_query is None:
             raise SynapseError(
@@ -553,9 +553,18 @@ class RoomBatchSendEventRestServlet(TransactionRestServlet):
             ]
 
         # Connect this current chunk to the insertion event from the previous chunk
-        last_event_in_chunk["content"][
-            EventContentFields.MSC2716_CHUNK_ID
-        ] = chunk_id_to_connect_to
+        chunk_event = {
+            "type": EventTypes.MSC2716_CHUNK,
+            "sender": requester.user.to_string(),
+            "room_id": room_id,
+            "content": {EventContentFields.MSC2716_CHUNK_ID: chunk_id_to_connect_to},
+            # Since the chunk event is put at the end of the chunk,
+            # where the newest-in-time event is, copy the origin_server_ts from
+            # the last event we're inserting
+            "origin_server_ts": last_event_in_chunk["origin_server_ts"],
+        }
+        # Add the chunk event to the end of the chunk (newest-in-time)
+        events_to_create.append(chunk_event)
 
         # Add an "insertion" event to the start of each chunk (next to the oldest-in-time
         # event in the chunk) so the next chunk can be connected to this one.
@@ -567,7 +576,7 @@ class RoomBatchSendEventRestServlet(TransactionRestServlet):
             # the first event we're inserting
             origin_server_ts=events_to_create[0]["origin_server_ts"],
         )
-        # Prepend the insertion event to the start of the chunk
+        # Prepend the insertion event to the start of the chunk (oldest-in-time)
         events_to_create = [insertion_event] + events_to_create
 
         event_ids = []
@@ -726,7 +735,7 @@ class PublicRoomListRestServlet(TransactionRestServlet):
         self.auth = hs.get_auth()
 
     async def on_GET(self, request):
-        server = parse_string(request, "server", default=None)
+        server = parse_string(request, "server")
 
         try:
             await self.auth.get_user_by_req(request, allow_guest=True)
@@ -746,7 +755,7 @@ class PublicRoomListRestServlet(TransactionRestServlet):
                 raise e
 
         limit = parse_integer(request, "limit", 0)
-        since_token = parse_string(request, "since", None)
+        since_token = parse_string(request, "since")
 
         if limit == 0:
             # zero is a special value which corresponds to no limit.
@@ -780,7 +789,7 @@ class PublicRoomListRestServlet(TransactionRestServlet):
     async def on_POST(self, request):
         await self.auth.get_user_by_req(request, allow_guest=True)
 
-        server = parse_string(request, "server", default=None)
+        server = parse_string(request, "server")
         content = parse_json_object_from_request(request)
 
         limit: Optional[int] = int(content.get("limit", 100))
diff --git a/synapse/rest/client/v2_alpha/capabilities.py b/synapse/rest/client/v2_alpha/capabilities.py
index 6a24021484..88e3aac797 100644
--- a/synapse/rest/client/v2_alpha/capabilities.py
+++ b/synapse/rest/client/v2_alpha/capabilities.py
@@ -14,7 +14,7 @@
 import logging
 from typing import TYPE_CHECKING, Tuple
 
-from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
+from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, MSC3244_CAPABILITIES
 from synapse.http.servlet import RestServlet
 from synapse.http.site import SynapseRequest
 from synapse.types import JsonDict
@@ -55,6 +55,12 @@ class CapabilitiesRestServlet(RestServlet):
                 "m.change_password": {"enabled": change_password},
             }
         }
+
+        if self.config.experimental.msc3244_enabled:
+            response["capabilities"]["m.room_versions"][
+                "org.matrix.msc3244.room_capabilities"
+            ] = MSC3244_CAPABILITIES
+
         return 200, response
 
 
diff --git a/synapse/rest/client/v2_alpha/keys.py b/synapse/rest/client/v2_alpha/keys.py
index 33cf8de186..d0d9d30d40 100644
--- a/synapse/rest/client/v2_alpha/keys.py
+++ b/synapse/rest/client/v2_alpha/keys.py
@@ -194,7 +194,7 @@ class KeyChangesServlet(RestServlet):
     async def on_GET(self, request):
         requester = await self.auth.get_user_by_req(request, allow_guest=True)
 
-        from_token_string = parse_string(request, "from")
+        from_token_string = parse_string(request, "from", required=True)
         set_tag("from", from_token_string)
 
         # We want to enforce they do pass us one, but we ignore it and return
diff --git a/synapse/rest/client/v2_alpha/relations.py b/synapse/rest/client/v2_alpha/relations.py
index c7da6759db..0821cd285f 100644
--- a/synapse/rest/client/v2_alpha/relations.py
+++ b/synapse/rest/client/v2_alpha/relations.py
@@ -158,19 +158,21 @@ class RelationPaginationServlet(RestServlet):
         event = await self.event_handler.get_event(requester.user, room_id, parent_id)
 
         limit = parse_integer(request, "limit", default=5)
-        from_token = parse_string(request, "from")
-        to_token = parse_string(request, "to")
+        from_token_str = parse_string(request, "from")
+        to_token_str = parse_string(request, "to")
 
         if event.internal_metadata.is_redacted():
             # If the event is redacted, return an empty list of relations
             pagination_chunk = PaginationChunk(chunk=[])
         else:
             # Return the relations
-            if from_token:
-                from_token = RelationPaginationToken.from_string(from_token)
+            from_token = None
+            if from_token_str:
+                from_token = RelationPaginationToken.from_string(from_token_str)
 
-            if to_token:
-                to_token = RelationPaginationToken.from_string(to_token)
+            to_token = None
+            if to_token_str:
+                to_token = RelationPaginationToken.from_string(to_token_str)
 
             pagination_chunk = await self.store.get_relations_for_event(
                 event_id=parent_id,
@@ -256,19 +258,21 @@ class RelationAggregationPaginationServlet(RestServlet):
             raise SynapseError(400, "Relation type must be 'annotation'")
 
         limit = parse_integer(request, "limit", default=5)
-        from_token = parse_string(request, "from")
-        to_token = parse_string(request, "to")
+        from_token_str = parse_string(request, "from")
+        to_token_str = parse_string(request, "to")
 
         if event.internal_metadata.is_redacted():
             # If the event is redacted, return an empty list of relations
             pagination_chunk = PaginationChunk(chunk=[])
         else:
             # Return the relations
-            if from_token:
-                from_token = AggregationPaginationToken.from_string(from_token)
+            from_token = None
+            if from_token_str:
+                from_token = AggregationPaginationToken.from_string(from_token_str)
 
-            if to_token:
-                to_token = AggregationPaginationToken.from_string(to_token)
+            to_token = None
+            if to_token_str:
+                to_token = AggregationPaginationToken.from_string(to_token_str)
 
             pagination_chunk = await self.store.get_aggregation_groups_for_event(
                 event_id=parent_id,
@@ -336,14 +340,16 @@ class RelationAggregationGroupPaginationServlet(RestServlet):
             raise SynapseError(400, "Relation type must be 'annotation'")
 
         limit = parse_integer(request, "limit", default=5)
-        from_token = parse_string(request, "from")
-        to_token = parse_string(request, "to")
+        from_token_str = parse_string(request, "from")
+        to_token_str = parse_string(request, "to")
 
-        if from_token:
-            from_token = RelationPaginationToken.from_string(from_token)
+        from_token = None
+        if from_token_str:
+            from_token = RelationPaginationToken.from_string(from_token_str)
 
-        if to_token:
-            to_token = RelationPaginationToken.from_string(to_token)
+        to_token = None
+        if to_token_str:
+            to_token = RelationPaginationToken.from_string(to_token_str)
 
         result = await self.store.get_relations_for_event(
             event_id=parent_id,
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index ecbbcf3851..7bb4e6b8aa 100644
--- a/synapse/rest/client/v2_alpha/sync.py
+++ b/synapse/rest/client/v2_alpha/sync.py
@@ -112,7 +112,7 @@ class SyncRestServlet(RestServlet):
             default="online",
             allowed_values=self.ALLOWED_PRESENCE,
         )
-        filter_id = parse_string(request, "filter", default=None)
+        filter_id = parse_string(request, "filter")
         full_state = parse_boolean(request, "full_state", default=False)
 
         logger.debug(
diff --git a/synapse/rest/consent/consent_resource.py b/synapse/rest/consent/consent_resource.py
index 4282e2b228..11f7320832 100644
--- a/synapse/rest/consent/consent_resource.py
+++ b/synapse/rest/consent/consent_resource.py
@@ -112,7 +112,7 @@ class ConsentResource(DirectServeHtmlResource):
             request (twisted.web.http.Request):
         """
         version = parse_string(request, "v", default=self._default_consent_version)
-        username = parse_string(request, "u", required=False, default="")
+        username = parse_string(request, "u", default="")
         userhmac = None
         has_consented = False
         public_version = username == ""
diff --git a/synapse/rest/media/v1/preview_url_resource.py b/synapse/rest/media/v1/preview_url_resource.py
index 8e7fead3a2..172212ee3a 100644
--- a/synapse/rest/media/v1/preview_url_resource.py
+++ b/synapse/rest/media/v1/preview_url_resource.py
@@ -186,15 +186,11 @@ class PreviewUrlResource(DirectServeJsonResource):
         respond_with_json(request, 200, {}, send_cors=True)
 
     async def _async_render_GET(self, request: SynapseRequest) -> None:
-        # This will always be set by the time Twisted calls us.
-        assert request.args is not None
-
         # XXX: if get_user_by_req fails, what should we do in an async render?
         requester = await self.auth.get_user_by_req(request)
-        url = parse_string(request, "url")
-        if b"ts" in request.args:
-            ts = parse_integer(request, "ts")
-        else:
+        url = parse_string(request, "url", required=True)
+        ts = parse_integer(request, "ts")
+        if ts is None:
             ts = self.clock.time_msec()
 
         # XXX: we could move this into _do_preview if we wanted.