Add GET /notifications API

synapse/rest/client/v2_alpha/notifications.py

@@ -0,0 +1,100 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 OpenMarket Ltd
+#
+# 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 synapse.http.servlet import (
+    RestServlet, parse_string, parse_integer
+)
+from synapse.events.utils import (
+    serialize_event, format_event_for_client_v2_without_room_id,
+)
+
+from ._base import client_v2_patterns
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class NotificationsServlet(RestServlet):
+    PATTERNS = client_v2_patterns("/notifications$", releases=())
+
+    def __init__(self, hs):
+        super(NotificationsServlet, self).__init__()
+        self.store = hs.get_datastore()
+        self.auth = hs.get_auth()
+        self.clock = hs.get_clock()
+
+    @defer.inlineCallbacks
+    def on_GET(self, request):
+        requester = yield self.auth.get_user_by_req(request)
+        user_id = requester.user.to_string()
+
+        from_token = parse_string(request, "from", required=False)
+        limit = parse_integer(request, "limit", default=50)
+
+        limit = min(limit, 500)
+
+        push_actions = yield self.store.get_push_actions_for_user(
+            user_id, from_token, limit
+        )
+
+        receipts_by_room = yield self.store.get_receipts_for_user_with_orderings(
+            user_id, 'm.read'
+        )
+
+        notif_event_ids = [pa["event_id"] for pa in push_actions]
+        notif_events = yield self.store.get_events(notif_event_ids)
+
+        returned_push_actions = []
+
+        next_token = None
+
+        for pa in push_actions:
+            returned_pa = {
+                "room_id": pa["room_id"],
+                "profile_tag": pa["profile_tag"],
+                "actions": pa["actions"],
+                "event": serialize_event(
+                    notif_events[pa["event_id"]],
+                    self.clock.time_msec(),
+                    event_format=format_event_for_client_v2_without_room_id,
+                ),
+            }
+
+            if pa["room_id"] not in receipts_by_room:
+                returned_pa["read"] = False
+            else:
+                receipt = receipts_by_room[pa["room_id"]]
+
+                returned_pa["read"] = (
+                    pa["topological_ordering"] > receipt["topological_ordering"]
+                    or (
+                        pa["topological_ordering"] == receipt["topological_ordering"]
+                        and pa["stream_ordering"] > receipt["stream_ordering"]
+                    )
+                )
+            returned_push_actions.append(returned_pa)
+            next_token = pa["stream_ordering"]
+
+        defer.returnValue((200, {
+            "notifications": returned_push_actions,
+            "next_token": next_token,
+        }))
+
+
+def register_servlets(hs, http_server):
+    NotificationsServlet(hs).register(http_server)