diff options
Diffstat (limited to 'synapse/events')
| -rw-r--r-- | synapse/events/__init__.py | 53 | ||||
| -rw-r--r-- | synapse/events/utils.py | 14 |
2 files changed, 43 insertions, 24 deletions
diff --git a/synapse/events/__init__.py b/synapse/events/__init__.py index 7307116556..533ba327f5 100644 --- a/synapse/events/__init__.py +++ b/synapse/events/__init__.py @@ -15,9 +15,10 @@ # See the License for the specific language governing permissions and # limitations under the License. +import abc import os from distutils.util import strtobool -from typing import Optional, Type +from typing import Dict, Optional, Type import six @@ -199,15 +200,25 @@ class _EventInternalMetadata(object): return self._dict.get("redacted", False) -class EventBase(object): +class EventBase(metaclass=abc.ABCMeta): + @property + @abc.abstractmethod + def format_version(self) -> int: + """The EventFormatVersion implemented by this event""" + ... + def __init__( self, - event_dict, - signatures={}, - unsigned={}, - internal_metadata_dict={}, - rejected_reason=None, + event_dict: JsonDict, + room_version: RoomVersion, + signatures: Dict[str, Dict[str, str]], + unsigned: JsonDict, + internal_metadata_dict: JsonDict, + rejected_reason: Optional[str], ): + assert room_version.event_format == self.format_version + + self.room_version = room_version self.signatures = signatures self.unsigned = unsigned self.rejected_reason = rejected_reason @@ -303,7 +314,13 @@ class EventBase(object): class FrozenEvent(EventBase): format_version = EventFormatVersions.V1 # All events of this type are V1 - def __init__(self, event_dict, internal_metadata_dict={}, rejected_reason=None): + def __init__( + self, + event_dict: JsonDict, + room_version: RoomVersion, + internal_metadata_dict: JsonDict = {}, + rejected_reason: Optional[str] = None, + ): event_dict = dict(event_dict) # Signatures is a dict of dicts, and this is faster than doing a @@ -326,8 +343,9 @@ class FrozenEvent(EventBase): self._event_id = event_dict["event_id"] - super(FrozenEvent, self).__init__( + super().__init__( frozen_dict, + room_version=room_version, signatures=signatures, unsigned=unsigned, internal_metadata_dict=internal_metadata_dict, @@ -352,7 +370,13 @@ class FrozenEvent(EventBase): class FrozenEventV2(EventBase): format_version = EventFormatVersions.V2 # All events of this type are V2 - def __init__(self, event_dict, internal_metadata_dict={}, rejected_reason=None): + def __init__( + self, + event_dict: JsonDict, + room_version: RoomVersion, + internal_metadata_dict: JsonDict = {}, + rejected_reason: Optional[str] = None, + ): event_dict = dict(event_dict) # Signatures is a dict of dicts, and this is faster than doing a @@ -377,8 +401,9 @@ class FrozenEventV2(EventBase): self._event_id = None - super(FrozenEventV2, self).__init__( + super().__init__( frozen_dict, + room_version=room_version, signatures=signatures, unsigned=unsigned, internal_metadata_dict=internal_metadata_dict, @@ -445,7 +470,7 @@ class FrozenEventV3(FrozenEventV2): return self._event_id -def event_type_from_format_version(format_version: int) -> Type[EventBase]: +def _event_type_from_format_version(format_version: int) -> Type[EventBase]: """Returns the python type to use to construct an Event object for the given event format version. @@ -474,5 +499,5 @@ def make_event_from_dict( rejected_reason: Optional[str] = None, ) -> EventBase: """Construct an EventBase from the given event dict""" - event_type = event_type_from_format_version(room_version.event_format) - return event_type(event_dict, internal_metadata_dict, rejected_reason) + event_type = _event_type_from_format_version(room_version.event_format) + return event_type(event_dict, room_version, internal_metadata_dict, rejected_reason) diff --git a/synapse/events/utils.py b/synapse/events/utils.py index f70f5032fb..bc6f98ae3b 100644 --- a/synapse/events/utils.py +++ b/synapse/events/utils.py @@ -35,26 +35,20 @@ from . import EventBase SPLIT_FIELD_REGEX = re.compile(r"(?<!\\)\.") -def prune_event(event): +def prune_event(event: EventBase) -> EventBase: """ Returns a pruned version of the given event, which removes all keys we don't know about or think could potentially be dodgy. This is used when we "redact" an event. We want to remove all fields that the user has specified, but we do want to keep necessary information like type, state_key etc. - - Args: - event (FrozenEvent) - - Returns: - FrozenEvent """ pruned_event_dict = prune_event_dict(event.get_dict()) - from . import event_type_from_format_version + from . import make_event_from_dict - pruned_event = event_type_from_format_version(event.format_version)( - pruned_event_dict, event.internal_metadata.get_dict() + pruned_event = make_event_from_dict( + pruned_event_dict, event.room_version, event.internal_metadata.get_dict() ) # Mark the event as redacted |