2 files changed, 40 insertions, 2 deletions
diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py
index 4cee1c1599..2dcaee86cd 100644
--- a/synapse/rest/client/v1/room.py
+++ b/synapse/rest/client/v1/room.py
@@ -397,6 +397,41 @@ class RoomTriggerBackfill(ClientV1RestServlet):
         defer.returnValue((200, res))
 
 
+class RoomEventContext(ClientV1RestServlet):
+    PATTERN = client_path_pattern(
+        "/rooms/(?P<room_id>[^/]*)/context/(?P<event_id>[^/]*)$"
+    )
+
+    def __init__(self, hs):
+        super(RoomEventContext, self).__init__(hs)
+        self.clock = hs.get_clock()
+
+    @defer.inlineCallbacks
+    def on_GET(self, request, room_id, event_id):
+        user, _ = yield self.auth.get_user_by_req(request)
+
+        limit = int(request.args.get("limit", [10])[0])
+
+        results = yield self.handlers.room_context_handler.get_event_context(
+            user, room_id, event_id, limit,
+        )
+
+        time_now = self.clock.time_msec()
+        results["events_before"] = [
+            serialize_event(event, time_now) for event in results["events_before"]
+        ]
+        results["events_after"] = [
+            serialize_event(event, time_now) for event in results["events_after"]
+        ]
+        results["state"] = [
+            serialize_event(event, time_now) for event in results["state"]
+        ]
+
+        logger.info("Responding with %r", results)
+
+        defer.returnValue((200, results))
+
+
 # TODO: Needs unit testing
 class RoomMembershipRestServlet(ClientV1RestServlet):
 
@@ -628,3 +663,4 @@ def register_servlets(hs, http_server):
     RoomRedactEventRestServlet(hs).register(http_server)
     RoomTypingRestServlet(hs).register(http_server)
     SearchRestServlet(hs).register(http_server)
+    RoomEventContext(hs).register(http_server)
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index 6c4f2b7cd4..1840eef775 100644
--- a/synapse/rest/client/v2_alpha/sync.py
+++ b/synapse/rest/client/v2_alpha/sync.py
@@ -16,7 +16,7 @@
 from twisted.internet import defer
 
 from synapse.http.servlet import (
-    RestServlet, parse_string, parse_integer
+    RestServlet, parse_string, parse_integer, parse_boolean
 )
 from synapse.handlers.sync import SyncConfig
 from synapse.types import StreamToken
@@ -90,6 +90,7 @@ class SyncRestServlet(RestServlet):
             allowed_values=self.ALLOWED_PRESENCE
         )
         filter_id = parse_string(request, "filter", default=None)
+        full_state = parse_boolean(request, "full_state", default=False)
 
         logger.info(
             "/sync: user=%r, timeout=%r, since=%r,"
@@ -120,7 +121,8 @@ class SyncRestServlet(RestServlet):
 
         try:
             sync_result = yield self.sync_handler.wait_for_sync_for_user(
-                sync_config, since_token=since_token, timeout=timeout
+                sync_config, since_token=since_token, timeout=timeout,
+                full_state=full_state
             )
         finally:
             if set_presence == "online":