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-rw-r--r--synapse/events/__init__.py56
-rw-r--r--synapse/events/builder.py10
-rw-r--r--synapse/events/spamcheck.py63
-rw-r--r--synapse/events/third_party_rules.py7
4 files changed, 90 insertions, 46 deletions
diff --git a/synapse/events/__init__.py b/synapse/events/__init__.py

index f813fa2fe7..a842661a90 100644 --- a/synapse/events/__init__.py +++ b/synapse/events/__init__.py
@@ -16,13 +16,13 @@ import os from distutils.util import strtobool +from typing import Optional, Type import six from unpaddedbase64 import encode_base64 -from synapse.api.errors import UnsupportedRoomVersionError -from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, EventFormatVersions +from synapse.api.room_versions import EventFormatVersions, RoomVersion, RoomVersions from synapse.types import JsonDict from synapse.util.caches import intern_dict from synapse.util.frozenutils import freeze @@ -189,9 +189,15 @@ class EventBase(object): redacts = _event_dict_property("redacts", None) room_id = _event_dict_property("room_id") sender = _event_dict_property("sender") + state_key = _event_dict_property("state_key") + type = _event_dict_property("type") user_id = _event_dict_property("sender") @property + def event_id(self) -> str: + raise NotImplementedError() + + @property def membership(self): return self.content["membership"] @@ -281,10 +287,7 @@ class FrozenEvent(EventBase): else: frozen_dict = event_dict - self.event_id = event_dict["event_id"] - self.type = event_dict["type"] - if "state_key" in event_dict: - self.state_key = event_dict["state_key"] + self._event_id = event_dict["event_id"] super(FrozenEvent, self).__init__( frozen_dict, @@ -294,6 +297,10 @@ class FrozenEvent(EventBase): rejected_reason=rejected_reason, ) + @property + def event_id(self) -> str: + return self._event_id + def __str__(self): return self.__repr__() @@ -332,9 +339,6 @@ class FrozenEventV2(EventBase): frozen_dict = event_dict self._event_id = None - self.type = event_dict["type"] - if "state_key" in event_dict: - self.state_key = event_dict["state_key"] super(FrozenEventV2, self).__init__( frozen_dict, @@ -404,28 +408,7 @@ class FrozenEventV3(FrozenEventV2): return self._event_id -def room_version_to_event_format(room_version): - """Converts a room version string to the event format - - Args: - room_version (str) - - Returns: - int - - Raises: - UnsupportedRoomVersionError if the room version is unknown - """ - v = KNOWN_ROOM_VERSIONS.get(room_version) - - if not v: - # this can happen if support is withdrawn for a room version - raise UnsupportedRoomVersionError() - - return v.event_format - - -def event_type_from_format_version(format_version): +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. @@ -445,3 +428,14 @@ def event_type_from_format_version(format_version): return FrozenEventV3 else: raise Exception("No event format %r" % (format_version,)) + + +def make_event_from_dict( + event_dict: JsonDict, + room_version: RoomVersion = RoomVersions.V1, + internal_metadata_dict: JsonDict = {}, + 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) diff --git a/synapse/events/builder.py b/synapse/events/builder.py
index 8d63ad6dc3..a0c4a40c27 100644 --- a/synapse/events/builder.py +++ b/synapse/events/builder.py
@@ -28,11 +28,7 @@ from synapse.api.room_versions import ( RoomVersion, ) from synapse.crypto.event_signing import add_hashes_and_signatures -from synapse.events import ( - EventBase, - _EventInternalMetadata, - event_type_from_format_version, -) +from synapse.events import EventBase, _EventInternalMetadata, make_event_from_dict from synapse.types import EventID, JsonDict from synapse.util import Clock from synapse.util.stringutils import random_string @@ -256,8 +252,8 @@ def create_local_event_from_event_dict( event_dict.setdefault("signatures", {}) add_hashes_and_signatures(room_version, event_dict, hostname, signing_key) - return event_type_from_format_version(format_version)( - event_dict, internal_metadata_dict=internal_metadata_dict + return make_event_from_dict( + event_dict, room_version, internal_metadata_dict=internal_metadata_dict ) diff --git a/synapse/events/spamcheck.py b/synapse/events/spamcheck.py
index 5a907718d6..b7a31c9a7d 100644 --- a/synapse/events/spamcheck.py +++ b/synapse/events/spamcheck.py
@@ -58,13 +58,33 @@ class SpamChecker(object): return self.spam_checker.check_event_for_spam(event) - def user_may_invite(self, inviter_userid, invitee_userid, room_id): + def user_may_invite( + self, + inviter_userid, + invitee_userid, + third_party_invite, + room_id, + new_room, + published_room, + ): """Checks if a given user may send an invite If this method returns false, the invite will be rejected. Args: - userid (string): The sender's user ID + inviter_userid (str) + invitee_userid (str|None): The user ID of the invitee. Is None + if this is a third party invite and the 3PID is not bound to a + user ID. + third_party_invite (dict|None): If a third party invite then is a + dict containing the medium and address of the invitee. + room_id (str) + new_room (bool): Whether the user is being invited to the room as + part of a room creation, if so the invitee would have been + included in the call to `user_may_create_room`. + published_room (bool): Whether the room the user is being invited + to has been published in the local homeserver's public room + directory. Returns: bool: True if the user may send an invite, otherwise False @@ -73,16 +93,29 @@ class SpamChecker(object): return True return self.spam_checker.user_may_invite( - inviter_userid, invitee_userid, room_id + inviter_userid, + invitee_userid, + third_party_invite, + room_id, + new_room, + published_room, ) - def user_may_create_room(self, userid): + def user_may_create_room( + self, userid, invite_list, third_party_invite_list, cloning + ): """Checks if a given user may create a room If this method returns false, the creation request will be rejected. Args: userid (string): The sender's user ID + invite_list (list[str]): List of user IDs that would be invited to + the new room. + third_party_invite_list (list[dict]): List of third party invites + for the new room. + cloning (bool): Whether the user is cloning an existing room, e.g. + upgrading a room. Returns: bool: True if the user may create a room, otherwise False @@ -90,7 +123,9 @@ class SpamChecker(object): if self.spam_checker is None: return True - return self.spam_checker.user_may_create_room(userid) + return self.spam_checker.user_may_create_room( + userid, invite_list, third_party_invite_list, cloning + ) def user_may_create_room_alias(self, userid, room_alias): """Checks if a given user may create a room alias @@ -125,3 +160,21 @@ class SpamChecker(object): return True return self.spam_checker.user_may_publish_room(userid, room_id) + + def user_may_join_room(self, userid, room_id, is_invited): + """Checks if a given users is allowed to join a room. + + Is not called when the user creates a room. + + Args: + userid (str) + room_id (str) + is_invited (bool): Whether the user is invited into the room + + Returns: + bool: Whether the user may join the room + """ + if self.spam_checker is None: + return True + + return self.spam_checker.user_may_join_room(userid, room_id, is_invited) diff --git a/synapse/events/third_party_rules.py b/synapse/events/third_party_rules.py
index 86f7e5f8aa..459132d388 100644 --- a/synapse/events/third_party_rules.py +++ b/synapse/events/third_party_rules.py
@@ -74,15 +74,16 @@ class ThirdPartyEventRules(object): is_requester_admin (bool): If the requester is an admin Returns: - defer.Deferred + defer.Deferred[bool]: Whether room creation is allowed or denied. """ if self.third_party_rules is None: - return + return True - yield self.third_party_rules.on_create_room( + ret = yield self.third_party_rules.on_create_room( requester, config, is_requester_admin ) + return ret @defer.inlineCallbacks def check_threepid_can_be_invited(self, medium, address, room_id):