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Add plugin APIs for implementations of custom event rules.

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This commit is contained in:
Brendan Abolivier 2019-06-12 10:31:37 +01:00
parent 6bac9ca6d7
commit f874b16b2e
9 changed files with 284 additions and 4 deletions
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68
synapse/handlers/federation.py
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@ -1,6 +1,7 @@
# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2018 New Vector Ltd
# Copyright 2017-2018 New Vector Ltd
# 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.
@ -33,6 +34,7 @@ from synapse.api.constants import EventTypes, Membership, RejectedReason
from synapse.api.errors import (
AuthError,
CodeMessageException,
Codes,
FederationDeniedError,
FederationError,
RequestSendFailed,
@ -127,6 +129,8 @@ class FederationHandler(BaseHandler):
self.room_queues = {}
self._room_pdu_linearizer = Linearizer("fed_room_pdu")
self.third_party_event_rules = hs.get_third_party_event_rules()
@defer.inlineCallbacks
def on_receive_pdu(
self, origin, pdu, sent_to_us_directly=False,
@ -1258,6 +1262,15 @@ class FederationHandler(BaseHandler):
logger.warn("Failed to create join %r because %s", event, e)
raise e
event_allowed = yield self.third_party_event_rules.check_event_allowed(
event, context,
)
if not event_allowed:
logger.info("Creation of join %s forbidden by third-party rules", event)
raise SynapseError(
403, "This event is not allowed in this context", Codes.FORBIDDEN,
)
# The remote hasn't signed it yet, obviously. We'll do the full checks
# when we get the event back in `on_send_join_request`
yield self.auth.check_from_context(
@ -1300,6 +1313,15 @@ class FederationHandler(BaseHandler):
origin, event
)
event_allowed = yield self.third_party_event_rules.check_event_allowed(
event, context,
)
if not event_allowed:
logger.info("Sending of join %s forbidden by third-party rules", event)
raise SynapseError(
403, "This event is not allowed in this context", Codes.FORBIDDEN,
)
logger.debug(
"on_send_join_request: After _handle_new_event: %s, sigs: %s",
event.event_id,
@ -1458,6 +1480,15 @@ class FederationHandler(BaseHandler):
builder=builder,
)
event_allowed = yield self.third_party_event_rules.check_event_allowed(
event, context,
)
if not event_allowed:
logger.warning("Creation of leave %s forbidden by third-party rules", event)
raise SynapseError(
403, "This event is not allowed in this context", Codes.FORBIDDEN,
)
try:
# The remote hasn't signed it yet, obviously. We'll do the full checks
# when we get the event back in `on_send_leave_request`
@ -1484,10 +1515,19 @@ class FederationHandler(BaseHandler):
event.internal_metadata.outlier = False
yield self._handle_new_event(
context = yield self._handle_new_event(
origin, event
)
event_allowed = yield self.third_party_event_rules.check_event_allowed(
event, context,
)
if not event_allowed:
logger.info("Sending of leave %s forbidden by third-party rules", event)
raise SynapseError(
403, "This event is not allowed in this context", Codes.FORBIDDEN,
)
logger.debug(
"on_send_leave_request: After _handle_new_event: %s, sigs: %s",
event.event_id,
@ -2550,6 +2590,18 @@ class FederationHandler(BaseHandler):
builder=builder
)
event_allowed = yield self.third_party_event_rules.check_event_allowed(
event, context,
)
if not event_allowed:
logger.info(
"Creation of threepid invite %s forbidden by third-party rules",
event,
)
raise SynapseError(
403, "This event is not allowed in this context", Codes.FORBIDDEN,
)
event, context = yield self.add_display_name_to_third_party_invite(
room_version, event_dict, event, context
)
@ -2598,6 +2650,18 @@ class FederationHandler(BaseHandler):
builder=builder,
)
event_allowed = yield self.third_party_event_rules.check_event_allowed(
event, context,
)
if not event_allowed:
logger.warning(
"Exchange of threepid invite %s forbidden by third-party rules",
event,
)
raise SynapseError(
403, "This event is not allowed in this context", Codes.FORBIDDEN,
)
event, context = yield self.add_display_name_to_third_party_invite(
room_version, event_dict, event, context
)