diff --git a/synapse/federation/handler.py b/synapse/federation/handler.py
deleted file mode 100644
index ce98f4f94a..0000000000
--- a/synapse/federation/handler.py
+++ /dev/null
@@ -1,156 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 matrix.org
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-
-from twisted.internet import defer
-
-from .pdu_codec import PduCodec
-
-from synapse.api.errors import AuthError
-from synapse.util.logutils import log_function
-
-import logging
-
-
-logger = logging.getLogger(__name__)
-
-
-class FederationEventHandler(object):
- """ Responsible for:
- a) handling received Pdus before handing them on as Events to the rest
- of the home server (including auth and state conflict resoultion)
- b) converting events that were produced by local clients that may need
- to be sent to remote home servers.
- """
-
- def __init__(self, hs):
- self.store = hs.get_datastore()
- self.replication_layer = hs.get_replication_layer()
- self.state_handler = hs.get_state_handler()
- # self.auth_handler = gs.get_auth_handler()
- self.event_handler = hs.get_handlers().federation_handler
- self.server_name = hs.hostname
-
- self.lock_manager = hs.get_room_lock_manager()
-
- self.replication_layer.set_handler(self)
-
- self.pdu_codec = PduCodec(hs)
-
- @log_function
- @defer.inlineCallbacks
- def handle_new_event(self, event, snapshot):
- """ Takes in an event from the client to server side, that has already
- been authed and handled by the state module, and sends it to any
- remote home servers that may be interested.
-
- Args:
- event
- snapshot (.storage.Snapshot): THe snapshot the event happened after
-
- Returns:
- Deferred: Resolved when it has successfully been queued for
- processing.
- """
- yield self.fill_out_prev_events(event, snapshot)
-
- pdu = self.pdu_codec.pdu_from_event(event)
-
- if not hasattr(pdu, "destinations") or not pdu.destinations:
- pdu.destinations = []
-
- yield self.replication_layer.send_pdu(pdu)
-
- @log_function
- @defer.inlineCallbacks
- def backfill(self, dest, room_id, limit):
- pdus = yield self.replication_layer.backfill(dest, room_id, limit)
-
- if not pdus:
- defer.returnValue([])
-
- events = [
- self.pdu_codec.event_from_pdu(pdu)
- for pdu in pdus
- ]
-
- defer.returnValue(events)
-
- @log_function
- def get_state_for_room(self, destination, room_id):
- return self.replication_layer.get_state_for_context(
- destination, room_id
- )
-
- @log_function
- @defer.inlineCallbacks
- def on_receive_pdu(self, pdu, backfilled):
- """ Called by the ReplicationLayer when we have a new pdu. We need to
- do auth checks and put it throught the StateHandler.
- """
- event = self.pdu_codec.event_from_pdu(pdu)
-
- try:
- with (yield self.lock_manager.lock(pdu.context)):
- if event.is_state and not backfilled:
- is_new_state = yield self.state_handler.handle_new_state(
- pdu
- )
- if not is_new_state:
- return
- else:
- is_new_state = False
-
- yield self.event_handler.on_receive(event, is_new_state, backfilled)
-
- except AuthError:
- # TODO: Implement something in federation that allows us to
- # respond to PDU.
- raise
-
- return
-
- @defer.inlineCallbacks
- def _on_new_state(self, pdu, new_state_event):
- # TODO: Do any store stuff here. Notifiy C2S about this new
- # state.
-
- yield self.store.update_current_state(
- pdu_id=pdu.pdu_id,
- origin=pdu.origin,
- context=pdu.context,
- pdu_type=pdu.pdu_type,
- state_key=pdu.state_key
- )
-
- yield self.event_handler.on_receive(new_state_event)
-
- @defer.inlineCallbacks
- def fill_out_prev_events(self, event, snapshot):
- if hasattr(event, "prev_events"):
- return
-
- results = snapshot.prev_pdus
-
- es = [
- "%s@%s" % (p_id, origin) for p_id, origin, _ in results
- ]
-
- event.prev_events = [e for e in es if e != event.event_id]
-
- if results:
- event.depth = max([int(v) for _, _, v in results]) + 1
- else:
- event.depth = 0
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