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Add a spamchecker callback to allow or deny room creation based on invites (#10898)

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This is in the context of creating new module callbacks that modules in https://github.com/matrix-org/synapse-dinsic can use, in an effort to reconcile the spam checker API in synapse-dinsic with the one in mainline.

This adds a callback that's fairly similar to user_may_create_room except it also allows processing based on the invites sent at room creation.
This commit is contained in:
Brendan Abolivier 2021-09-24 16:38:23 +02:00 • committed by GitHub
parent ea01d4c2de
commit b10257e879
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5 changed files with 199 additions and 6 deletions
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42
synapse/events/spamcheck.py
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@ -46,6 +46,9 @@ CHECK_EVENT_FOR_SPAM_CALLBACK = Callable[
]
USER_MAY_INVITE_CALLBACK = Callable[[str, str, str], Awaitable[bool]]
USER_MAY_CREATE_ROOM_CALLBACK = Callable[[str], Awaitable[bool]]
USER_MAY_CREATE_ROOM_WITH_INVITES_CALLBACK = Callable[
[str, List[str], List[Dict[str, str]]], Awaitable[bool]
]
USER_MAY_CREATE_ROOM_ALIAS_CALLBACK = Callable[[str, RoomAlias], Awaitable[bool]]
USER_MAY_PUBLISH_ROOM_CALLBACK = Callable[[str, str], Awaitable[bool]]
CHECK_USERNAME_FOR_SPAM_CALLBACK = Callable[[Dict[str, str]], Awaitable[bool]]
@ -164,6 +167,9 @@ class SpamChecker:
self._check_event_for_spam_callbacks: List[CHECK_EVENT_FOR_SPAM_CALLBACK] = []
self._user_may_invite_callbacks: List[USER_MAY_INVITE_CALLBACK] = []
self._user_may_create_room_callbacks: List[USER_MAY_CREATE_ROOM_CALLBACK] = []
self._user_may_create_room_with_invites_callbacks: List[
USER_MAY_CREATE_ROOM_WITH_INVITES_CALLBACK
] = []
self._user_may_create_room_alias_callbacks: List[
USER_MAY_CREATE_ROOM_ALIAS_CALLBACK
] = []
@ -183,6 +189,9 @@ class SpamChecker:
check_event_for_spam: Optional[CHECK_EVENT_FOR_SPAM_CALLBACK] = None,
user_may_invite: Optional[USER_MAY_INVITE_CALLBACK] = None,
user_may_create_room: Optional[USER_MAY_CREATE_ROOM_CALLBACK] = None,
user_may_create_room_with_invites: Optional[
USER_MAY_CREATE_ROOM_WITH_INVITES_CALLBACK
] = None,
user_may_create_room_alias: Optional[
USER_MAY_CREATE_ROOM_ALIAS_CALLBACK
] = None,
@ -203,6 +212,11 @@ class SpamChecker:
if user_may_create_room is not None:
self._user_may_create_room_callbacks.append(user_may_create_room)
if user_may_create_room_with_invites is not None:
self._user_may_create_room_with_invites_callbacks.append(
user_may_create_room_with_invites,
)
if user_may_create_room_alias is not None:
self._user_may_create_room_alias_callbacks.append(
user_may_create_room_alias,
@ -283,6 +297,34 @@ class SpamChecker:
return True
async def user_may_create_room_with_invites(
self,
userid: str,
invites: List[str],
threepid_invites: List[Dict[str, str]],
) -> bool:
"""Checks if a given user may create a room with invites
If this method returns false, the creation request will be rejected.
Args:
userid: The ID of the user attempting to create a room
invites: The IDs of the Matrix users to be invited if the room creation is
allowed.
threepid_invites: The threepids to be invited if the room creation is allowed,
as a dict including a "medium" key indicating the threepid's medium (e.g.
"email") and an "address" key indicating the threepid's address (e.g.
"alice@example.com")
Returns:
True if the user may create the room, otherwise False
"""
for callback in self._user_may_create_room_with_invites_callbacks:
if await callback(userid, invites, threepid_invites) is False:
return False
return True
async def user_may_create_room_alias(
self, userid: str, room_alias: RoomAlias
) -> bool: