diff options
Diffstat (limited to 'synapse/events')
| -rw-r--r-- | synapse/events/builder.py | 7 | ||||
| -rw-r--r-- | synapse/events/third_party_rules.py | 114 | ||||
| -rw-r--r-- | synapse/events/utils.py | 5 |
3 files changed, 123 insertions, 3 deletions
diff --git a/synapse/events/builder.py b/synapse/events/builder.py index 1fe995f212..546b6f4982 100644 --- a/synapse/events/builder.py +++ b/synapse/events/builder.py @@ -76,6 +76,7 @@ class EventBuilder(object): # someone tries to get them when they don't exist. _state_key = attr.ib(default=None) _redacts = attr.ib(default=None) + _origin_server_ts = attr.ib(default=None) internal_metadata = attr.ib(default=attr.Factory(lambda: _EventInternalMetadata({}))) @@ -142,6 +143,9 @@ class EventBuilder(object): if self._redacts is not None: event_dict["redacts"] = self._redacts + if self._origin_server_ts is not None: + event_dict["origin_server_ts"] = self._origin_server_ts + defer.returnValue( create_local_event_from_event_dict( clock=self._clock, @@ -209,6 +213,7 @@ class EventBuilderFactory(object): content=key_values.get("content", {}), unsigned=key_values.get("unsigned", {}), redacts=key_values.get("redacts", None), + origin_server_ts=key_values.get("origin_server_ts", None), ) @@ -245,7 +250,7 @@ def create_local_event_from_event_dict(clock, hostname, signing_key, event_dict["event_id"] = _create_event_id(clock, hostname) event_dict["origin"] = hostname - event_dict["origin_server_ts"] = time_now + event_dict.setdefault("origin_server_ts", time_now) event_dict.setdefault("unsigned", {}) age = event_dict["unsigned"].pop("age", 0) diff --git a/synapse/events/third_party_rules.py b/synapse/events/third_party_rules.py new file mode 100644 index 0000000000..50ceeb1e8e --- /dev/null +++ b/synapse/events/third_party_rules.py @@ -0,0 +1,114 @@ +# -*- coding: utf-8 -*- +# Copyright 2019 The Matrix.org Foundation C.I.C. +# +# 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 + + +class ThirdPartyEventRules(object): + """Allows server admins to provide a Python module implementing an extra + set of rules to apply when processing events. + + This is designed to help admins of closed federations with enforcing custom + behaviours. + """ + + def __init__(self, hs): + self.third_party_rules = None + + self.store = hs.get_datastore() + + module = None + config = None + if hs.config.third_party_event_rules: + module, config = hs.config.third_party_event_rules + + if module is not None: + self.third_party_rules = module( + config=config, + http_client=hs.get_simple_http_client(), + ) + + @defer.inlineCallbacks + def check_event_allowed(self, event, context): + """Check if a provided event should be allowed in the given context. + + Args: + event (synapse.events.EventBase): The event to be checked. + context (synapse.events.snapshot.EventContext): The context of the event. + + Returns: + defer.Deferred[bool]: True if the event should be allowed, False if not. + """ + if self.third_party_rules is None: + defer.returnValue(True) + + prev_state_ids = yield context.get_prev_state_ids(self.store) + + # Retrieve the state events from the database. + state_events = {} + for key, event_id in prev_state_ids.items(): + state_events[key] = yield self.store.get_event(event_id, allow_none=True) + + ret = yield self.third_party_rules.check_event_allowed(event, state_events) + defer.returnValue(ret) + + @defer.inlineCallbacks + def on_create_room(self, requester, config, is_requester_admin): + """Intercept requests to create room to allow, deny or update the + request config. + + Args: + requester (Requester) + config (dict): The creation config from the client. + is_requester_admin (bool): If the requester is an admin + + Returns: + defer.Deferred + """ + + if self.third_party_rules is None: + return + + yield self.third_party_rules.on_create_room( + requester, config, is_requester_admin + ) + + @defer.inlineCallbacks + def check_threepid_can_be_invited(self, medium, address, room_id): + """Check if a provided 3PID can be invited in the given room. + + Args: + medium (str): The 3PID's medium. + address (str): The 3PID's address. + room_id (str): The room we want to invite the threepid to. + + Returns: + defer.Deferred[bool], True if the 3PID can be invited, False if not. + """ + + if self.third_party_rules is None: + defer.returnValue(True) + + state_ids = yield self.store.get_filtered_current_state_ids(room_id) + room_state_events = yield self.store.get_events(state_ids.values()) + + state_events = {} + for key, event_id in state_ids.items(): + state_events[key] = room_state_events[event_id] + + ret = yield self.third_party_rules.check_threepid_can_be_invited( + medium, address, state_events, + ) + defer.returnValue(ret) diff --git a/synapse/events/utils.py b/synapse/events/utils.py index 27a2a9ef98..e2d4384de1 100644 --- a/synapse/events/utils.py +++ b/synapse/events/utils.py @@ -330,12 +330,13 @@ class EventClientSerializer(object): ) @defer.inlineCallbacks - def serialize_event(self, event, time_now, **kwargs): + def serialize_event(self, event, time_now, bundle_aggregations=True, **kwargs): """Serializes a single event. Args: event (EventBase) time_now (int): The current time in milliseconds + bundle_aggregations (bool): Whether to bundle in related events **kwargs: Arguments to pass to `serialize_event` Returns: @@ -350,7 +351,7 @@ class EventClientSerializer(object): # If MSC1849 is enabled then we need to look if thre are any relations # we need to bundle in with the event - if self.experimental_msc1849_support_enabled: + if self.experimental_msc1849_support_enabled and bundle_aggregations: annotations = yield self.store.get_aggregation_groups_for_event( event_id, ) |