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-rw-r--r--synapse/federation/federation_server.py29
-rw-r--r--synapse/federation/transaction_queue.py4
-rw-r--r--synapse/federation/transport/server.py9
-rw-r--r--synapse/federation/units.py3
4 files changed, 24 insertions, 21 deletions
diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index 0f9302a6a8..98722ae543 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -162,8 +162,30 @@ class FederationServer(FederationBase):
                 p["age_ts"] = request_time - int(p["age"])
                 del p["age"]
 
+            # We try and pull out an event ID so that if later checks fail we
+            # can log something sensible. We don't mandate an event ID here in
+            # case future event formats get rid of the key.
+            possible_event_id = p.get("event_id", "<Unknown>")
+
+            # Now we get the room ID so that we can check that we know the
+            # version of the room.
+            room_id = p.get("room_id")
+            if not room_id:
+                logger.info(
+                    "Ignoring PDU as does not have a room_id. Event ID: %s",
+                    possible_event_id,
+                )
+                continue
+
+            try:
+                # In future we will actually use the room version to parse the
+                # PDU into an event.
+                yield self.store.get_room_version(room_id)
+            except NotFoundError:
+                logger.info("Ignoring PDU for unknown room_id: %s", room_id)
+                continue
+
             event = event_from_pdu_json(p)
-            room_id = event.room_id
             pdus_by_room.setdefault(room_id, []).append(event)
 
         pdu_results = {}
@@ -324,11 +346,6 @@ class FederationServer(FederationBase):
             defer.returnValue((404, ""))
 
     @defer.inlineCallbacks
-    @log_function
-    def on_pull_request(self, origin, versions):
-        raise NotImplementedError("Pull transactions not implemented")
-
-    @defer.inlineCallbacks
     def on_query_request(self, query_type, args):
         received_queries_counter.labels(query_type).inc()
         resp = yield self.registry.on_query(query_type, args)
diff --git a/synapse/federation/transaction_queue.py b/synapse/federation/transaction_queue.py
index 3fdd63be95..099ace28c1 100644
--- a/synapse/federation/transaction_queue.py
+++ b/synapse/federation/transaction_queue.py
@@ -183,9 +183,7 @@ class TransactionQueue(object):
                         # banned then it won't receive the event because it won't
                         # be in the room after the ban.
                         destinations = yield self.state.get_current_hosts_in_room(
-                            event.room_id, latest_event_ids=[
-                                prev_id for prev_id, _ in event.prev_events
-                            ],
+                            event.room_id, latest_event_ids=event.prev_event_ids(),
                         )
                     except Exception:
                         logger.exception(
diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py
index 7288d49074..3553f418f1 100644
--- a/synapse/federation/transport/server.py
+++ b/synapse/federation/transport/server.py
@@ -362,14 +362,6 @@ class FederationSendServlet(BaseFederationServlet):
         defer.returnValue((code, response))
 
 
-class FederationPullServlet(BaseFederationServlet):
-    PATH = "/pull/"
-
-    # This is for when someone asks us for everything since version X
-    def on_GET(self, origin, content, query):
-        return self.handler.on_pull_request(query["origin"][0], query["v"])
-
-
 class FederationEventServlet(BaseFederationServlet):
     PATH = "/event/(?P<event_id>[^/]*)/"
 
@@ -1261,7 +1253,6 @@ class FederationGroupsSettingJoinPolicyServlet(BaseFederationServlet):
 
 FEDERATION_SERVLET_CLASSES = (
     FederationSendServlet,
-    FederationPullServlet,
     FederationEventServlet,
     FederationStateServlet,
     FederationStateIdsServlet,
diff --git a/synapse/federation/units.py b/synapse/federation/units.py
index c5ab14314e..025a79c022 100644
--- a/synapse/federation/units.py
+++ b/synapse/federation/units.py
@@ -117,9 +117,6 @@ class Transaction(JsonEncodedObject):
                 "Require 'transaction_id' to construct a Transaction"
             )
 
-        for p in pdus:
-            p.transaction_id = kwargs["transaction_id"]
-
         kwargs["pdus"] = [p.get_pdu_json() for p in pdus]
 
         return Transaction(**kwargs)