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@@ -13,20 +13,26 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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+from typing import Union
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+
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from synapse.api.constants import MAX_ALIAS_LENGTH, EventTypes, Membership
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from synapse.api.errors import Codes, SynapseError
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from synapse.api.room_versions import EventFormatVersions
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+from synapse.config.homeserver import HomeServerConfig
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+from synapse.events import EventBase
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+from synapse.events.builder import EventBuilder
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from synapse.events.utils import validate_canonicaljson
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+from synapse.federation.federation_server import server_matches_acl_event
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from synapse.types import EventID, RoomID, UserID
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class EventValidator:
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- def validate_new(self, event, config):
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+ def validate_new(self, event: EventBase, config: HomeServerConfig):
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"""Validates the event has roughly the right format
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Args:
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- event (FrozenEvent): The event to validate.
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- config (Config): The homeserver's configuration.
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+ event: The event to validate.
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+ config: The homeserver's configuration.
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"""
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self.validate_builder(event)
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@@ -76,12 +82,18 @@ class EventValidator:
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if event.type == EventTypes.Retention:
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self._validate_retention(event)
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- def _validate_retention(self, event):
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+ if event.type == EventTypes.ServerACL:
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+ if not server_matches_acl_event(config.server_name, event):
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+ raise SynapseError(
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+ 400, "Can't create an ACL event that denies the local server"
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+ )
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+
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+ def _validate_retention(self, event: EventBase):
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"""Checks that an event that defines the retention policy for a room respects the
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format enforced by the spec.
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Args:
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- event (FrozenEvent): The event to validate.
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+ event: The event to validate.
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"""
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if not event.is_state():
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raise SynapseError(code=400, msg="must be a state event")
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@@ -116,13 +128,10 @@ class EventValidator:
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errcode=Codes.BAD_JSON,
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)
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- def validate_builder(self, event):
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+ def validate_builder(self, event: Union[EventBase, EventBuilder]):
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"""Validates that the builder/event has roughly the right format. Only
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checks values that we expect a proto event to have, rather than all the
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fields an event would have
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-
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- Args:
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- event (EventBuilder|FrozenEvent)
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"""
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strings = ["room_id", "sender", "type"]
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