From efe3c7977a3dc9c4308388f71e82b837df7d09b4 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Tue, 14 May 2019 16:59:21 +0100 Subject: Add simple send_relation API and track in DB --- synapse/api/constants.py | 8 ++ synapse/rest/__init__.py | 2 + synapse/rest/client/v2_alpha/relations.py | 110 ++++++++++++++++++++++++++ synapse/storage/__init__.py | 2 + synapse/storage/events.py | 2 + synapse/storage/relations.py | 62 +++++++++++++++ synapse/storage/schema/delta/54/relations.sql | 27 +++++++ 7 files changed, 213 insertions(+) create mode 100644 synapse/rest/client/v2_alpha/relations.py create mode 100644 synapse/storage/relations.py create mode 100644 synapse/storage/schema/delta/54/relations.sql (limited to 'synapse') diff --git a/synapse/api/constants.py b/synapse/api/constants.py index 8547a63535..30bebd749f 100644 --- a/synapse/api/constants.py +++ b/synapse/api/constants.py @@ -116,3 +116,11 @@ class UserTypes(object): """ SUPPORT = "support" ALL_USER_TYPES = (SUPPORT,) + + +class RelationTypes(object): + """The types of relations known to this server. + """ + ANNOTATION = "m.annotation" + REPLACES = "m.replaces" + REFERENCES = "m.references" diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py index 3a24d31d1b..e6110ad9b1 100644 --- a/synapse/rest/__init__.py +++ b/synapse/rest/__init__.py @@ -44,6 +44,7 @@ from synapse.rest.client.v2_alpha import ( read_marker, receipts, register, + relations, report_event, room_keys, room_upgrade_rest_servlet, @@ -115,6 +116,7 @@ class ClientRestResource(JsonResource): room_upgrade_rest_servlet.register_servlets(hs, client_resource) capabilities.register_servlets(hs, client_resource) account_validity.register_servlets(hs, client_resource) + relations.register_servlets(hs, client_resource) # moving to /_synapse/admin synapse.rest.admin.register_servlets_for_client_rest_resource( diff --git a/synapse/rest/client/v2_alpha/relations.py b/synapse/rest/client/v2_alpha/relations.py new file mode 100644 index 0000000000..b504b4a8be --- /dev/null +++ b/synapse/rest/client/v2_alpha/relations.py @@ -0,0 +1,110 @@ +# -*- coding: utf-8 -*- +# Copyright 2019 New Vector 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. + +"""This class implements the proposed relation APIs from MSC 1849. + +Since the MSC has not been approved all APIs here are unstable and may change at +any time to reflect changes in the MSC. +""" + +import logging + +from twisted.internet import defer + +from synapse.api.constants import EventTypes +from synapse.api.errors import SynapseError +from synapse.http.servlet import ( + RestServlet, + parse_json_object_from_request, + parse_string, +) + +from ._base import client_v2_patterns + +logger = logging.getLogger(__name__) + + +class RelationSendServlet(RestServlet): + """Helper API for sending events that have relation data. + + Example API shape to send a 👍 reaction to a room: + + POST /rooms/!foo/send_relation/$bar/m.annotation/m.reaction?key=%F0%9F%91%8D + {} + + { + "event_id": "$foobar" + } + """ + + PATTERN = ( + "/rooms/(?P[^/]*)/send_relation" + "/(?P[^/]*)/(?P[^/]*)/(?P[^/]*)" + ) + + def __init__(self, hs): + super(RelationSendServlet, self).__init__() + self.auth = hs.get_auth() + self.event_creation_handler = hs.get_event_creation_handler() + + def register(self, http_server): + http_server.register_paths( + "POST", + client_v2_patterns(self.PATTERN + "$", releases=()), + self.on_PUT_or_POST, + ) + http_server.register_paths( + "PUT", + client_v2_patterns(self.PATTERN + "/(?P[^/]*)$", releases=()), + self.on_PUT_or_POST, + ) + + @defer.inlineCallbacks + def on_PUT_or_POST( + self, request, room_id, parent_id, relation_type, event_type, txn_id=None + ): + requester = yield self.auth.get_user_by_req(request, allow_guest=True) + + if event_type == EventTypes.Member: + # Add relations to a membership is meaningless, so we just deny it + # at the CS API rather than trying to handle it correctly. + raise SynapseError(400, "Cannot send member events with relations") + + content = parse_json_object_from_request(request) + + aggregation_key = parse_string(request, "key", encoding="utf-8") + + content["m.relates_to"] = { + "event_id": parent_id, + "key": aggregation_key, + "rel_type": relation_type, + } + + event_dict = { + "type": event_type, + "content": content, + "room_id": room_id, + "sender": requester.user.to_string(), + } + + event = yield self.event_creation_handler.create_and_send_nonmember_event( + requester, event_dict=event_dict, txn_id=txn_id + ) + + defer.returnValue((200, {"event_id": event.event_id})) + + +def register_servlets(hs, http_server): + RelationSendServlet(hs).register(http_server) diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py index c432041b4e..7522d3fd57 100644 --- a/synapse/storage/__init__.py +++ b/synapse/storage/__init__.py @@ -49,6 +49,7 @@ from .pusher import PusherStore from .receipts import ReceiptsStore from .registration import RegistrationStore from .rejections import RejectionsStore +from .relations import RelationsStore from .room import RoomStore from .roommember import RoomMemberStore from .search import SearchStore @@ -99,6 +100,7 @@ class DataStore( GroupServerStore, UserErasureStore, MonthlyActiveUsersStore, + RelationsStore, ): def __init__(self, db_conn, hs): self.hs = hs diff --git a/synapse/storage/events.py b/synapse/storage/events.py index 7a7f841c6c..6802bf42ce 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -1351,6 +1351,8 @@ class EventsStore( # Insert into the event_search table. self._store_guest_access_txn(txn, event) + self._handle_event_relations(txn, event) + # Insert into the room_memberships table. self._store_room_members_txn( txn, diff --git a/synapse/storage/relations.py b/synapse/storage/relations.py new file mode 100644 index 0000000000..a4905162e0 --- /dev/null +++ b/synapse/storage/relations.py @@ -0,0 +1,62 @@ +# -*- coding: utf-8 -*- +# Copyright 2019 New Vector 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. + +import logging + +from synapse.api.constants import RelationTypes +from synapse.storage._base import SQLBaseStore + +logger = logging.getLogger(__name__) + + +class RelationsStore(SQLBaseStore): + def _handle_event_relations(self, txn, event): + """Handles inserting relation data during peristence of events + + Args: + txn + event (EventBase) + """ + relation = event.content.get("m.relates_to") + if not relation: + # No relations + return + + rel_type = relation.get("rel_type") + if rel_type not in ( + RelationTypes.ANNOTATION, + RelationTypes.REFERENCES, + RelationTypes.REPLACES, + ): + # Unknown relation type + return + + parent_id = relation.get("event_id") + if not parent_id: + # Invalid relation + return + + aggregation_key = relation.get("key") + + self._simple_insert_txn( + txn, + table="event_relations", + values={ + "event_id": event.event_id, + "relates_to_id": parent_id, + "relation_type": rel_type, + "aggregation_key": aggregation_key, + }, + ) diff --git a/synapse/storage/schema/delta/54/relations.sql b/synapse/storage/schema/delta/54/relations.sql new file mode 100644 index 0000000000..134862b870 --- /dev/null +++ b/synapse/storage/schema/delta/54/relations.sql @@ -0,0 +1,27 @@ +/* Copyright 2019 New Vector 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. + */ + +-- Tracks related events, like reactions, replies, edits, etc. Note that things +-- in this table are not necessarily "valid", e.g. it may contain edits from +-- people who don't have power to edit other peoples events. +CREATE TABLE IF NOT EXISTS event_relations ( + event_id TEXT NOT NULL, + relates_to_id TEXT NOT NULL, + relation_type TEXT NOT NULL, + aggregation_key TEXT +); + +CREATE UNIQUE INDEX event_relations_id ON event_relations(event_id); +CREATE INDEX event_relations_relates ON event_relations(relates_to_id, relation_type, aggregation_key); 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