diff options
Diffstat (limited to 'synapse/events')
| -rw-r--r-- | synapse/events/spamcheck.py | 163 |
1 files changed, 128 insertions, 35 deletions
diff --git a/synapse/events/spamcheck.py b/synapse/events/spamcheck.py index 32712d2042..4a3bfb38f1 100644 --- a/synapse/events/spamcheck.py +++ b/synapse/events/spamcheck.py @@ -21,7 +21,6 @@ from typing import ( Awaitable, Callable, Collection, - Dict, List, Optional, Tuple, @@ -32,10 +31,11 @@ from typing import ( from typing_extensions import Literal import synapse +from synapse.api.errors import Codes from synapse.rest.media.v1._base import FileInfo from synapse.rest.media.v1.media_storage import ReadableFileWrapper from synapse.spam_checker_api import RegistrationBehaviour -from synapse.types import RoomAlias, UserProfile +from synapse.types import JsonDict, RoomAlias, UserProfile from synapse.util.async_helpers import delay_cancellation, maybe_awaitable from synapse.util.metrics import Measure @@ -50,12 +50,12 @@ CHECK_EVENT_FOR_SPAM_CALLBACK = Callable[ Awaitable[ Union[ str, - "synapse.api.errors.Codes", + Codes, # Highly experimental, not officially part of the spamchecker API, may # disappear without warning depending on the results of ongoing # experiments. # Use this to return additional information as part of an error. - Tuple["synapse.api.errors.Codes", Dict], + Tuple[Codes, JsonDict], # Deprecated bool, ] @@ -70,7 +70,12 @@ USER_MAY_JOIN_ROOM_CALLBACK = Callable[ Awaitable[ Union[ Literal["NOT_SPAM"], - "synapse.api.errors.Codes", + Codes, + # Highly experimental, not officially part of the spamchecker API, may + # disappear without warning depending on the results of ongoing + # experiments. + # Use this to return additional information as part of an error. + Tuple[Codes, JsonDict], # Deprecated bool, ] @@ -81,7 +86,12 @@ USER_MAY_INVITE_CALLBACK = Callable[ Awaitable[ Union[ Literal["NOT_SPAM"], - "synapse.api.errors.Codes", + Codes, + # Highly experimental, not officially part of the spamchecker API, may + # disappear without warning depending on the results of ongoing + # experiments. + # Use this to return additional information as part of an error. + Tuple[Codes, JsonDict], # Deprecated bool, ] @@ -92,7 +102,12 @@ USER_MAY_SEND_3PID_INVITE_CALLBACK = Callable[ Awaitable[ Union[ Literal["NOT_SPAM"], - "synapse.api.errors.Codes", + Codes, + # Highly experimental, not officially part of the spamchecker API, may + # disappear without warning depending on the results of ongoing + # experiments. + # Use this to return additional information as part of an error. + Tuple[Codes, JsonDict], # Deprecated bool, ] @@ -103,7 +118,12 @@ USER_MAY_CREATE_ROOM_CALLBACK = Callable[ Awaitable[ Union[ Literal["NOT_SPAM"], - "synapse.api.errors.Codes", + Codes, + # Highly experimental, not officially part of the spamchecker API, may + # disappear without warning depending on the results of ongoing + # experiments. + # Use this to return additional information as part of an error. + Tuple[Codes, JsonDict], # Deprecated bool, ] @@ -114,7 +134,12 @@ USER_MAY_CREATE_ROOM_ALIAS_CALLBACK = Callable[ Awaitable[ Union[ Literal["NOT_SPAM"], - "synapse.api.errors.Codes", + Codes, + # Highly experimental, not officially part of the spamchecker API, may + # disappear without warning depending on the results of ongoing + # experiments. + # Use this to return additional information as part of an error. + Tuple[Codes, JsonDict], # Deprecated bool, ] @@ -125,7 +150,12 @@ USER_MAY_PUBLISH_ROOM_CALLBACK = Callable[ Awaitable[ Union[ Literal["NOT_SPAM"], - "synapse.api.errors.Codes", + Codes, + # Highly experimental, not officially part of the spamchecker API, may + # disappear without warning depending on the results of ongoing + # experiments. + # Use this to return additional information as part of an error. + Tuple[Codes, JsonDict], # Deprecated bool, ] @@ -154,7 +184,12 @@ CHECK_MEDIA_FILE_FOR_SPAM_CALLBACK = Callable[ Awaitable[ Union[ Literal["NOT_SPAM"], - "synapse.api.errors.Codes", + Codes, + # Highly experimental, not officially part of the spamchecker API, may + # disappear without warning depending on the results of ongoing + # experiments. + # Use this to return additional information as part of an error. + Tuple[Codes, JsonDict], # Deprecated bool, ] @@ -345,7 +380,7 @@ class SpamChecker: async def check_event_for_spam( self, event: "synapse.events.EventBase" - ) -> Union[Tuple["synapse.api.errors.Codes", Dict], str]: + ) -> Union[Tuple[Codes, JsonDict], str]: """Checks if a given event is considered "spammy" by this server. If the server considers an event spammy, then it will be rejected if @@ -376,7 +411,16 @@ class SpamChecker: elif res is True: # This spam-checker rejects the event with deprecated # return value `True` - return (synapse.api.errors.Codes.FORBIDDEN, {}) + return synapse.api.errors.Codes.FORBIDDEN, {} + elif ( + isinstance(res, tuple) + and len(res) == 2 + and isinstance(res[0], synapse.api.errors.Codes) + and isinstance(res[1], dict) + ): + return res + elif isinstance(res, synapse.api.errors.Codes): + return res, {} elif not isinstance(res, str): # mypy complains that we can't reach this code because of the # return type in CHECK_EVENT_FOR_SPAM_CALLBACK, but we don't know @@ -422,7 +466,7 @@ class SpamChecker: async def user_may_join_room( self, user_id: str, room_id: str, is_invited: bool - ) -> Union["synapse.api.errors.Codes", Literal["NOT_SPAM"]]: + ) -> Union[Tuple[Codes, JsonDict], Literal["NOT_SPAM"]]: """Checks if a given users is allowed to join a room. Not called when a user creates a room. @@ -432,7 +476,7 @@ class SpamChecker: is_invited: Whether the user is invited into the room Returns: - NOT_SPAM if the operation is permitted, Codes otherwise. + NOT_SPAM if the operation is permitted, [Codes, Dict] otherwise. """ for callback in self._user_may_join_room_callbacks: with Measure( @@ -443,21 +487,28 @@ class SpamChecker: if res is True or res is self.NOT_SPAM: continue elif res is False: - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} elif isinstance(res, synapse.api.errors.Codes): + return res, {} + elif ( + isinstance(res, tuple) + and len(res) == 2 + and isinstance(res[0], synapse.api.errors.Codes) + and isinstance(res[1], dict) + ): return res else: logger.warning( "Module returned invalid value, rejecting join as spam" ) - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} # No spam-checker has rejected the request, let it pass. return self.NOT_SPAM async def user_may_invite( self, inviter_userid: str, invitee_userid: str, room_id: str - ) -> Union["synapse.api.errors.Codes", Literal["NOT_SPAM"]]: + ) -> Union[Tuple[Codes, dict], Literal["NOT_SPAM"]]: """Checks if a given user may send an invite Args: @@ -479,21 +530,28 @@ class SpamChecker: if res is True or res is self.NOT_SPAM: continue elif res is False: - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} elif isinstance(res, synapse.api.errors.Codes): + return res, {} + elif ( + isinstance(res, tuple) + and len(res) == 2 + and isinstance(res[0], synapse.api.errors.Codes) + and isinstance(res[1], dict) + ): return res else: logger.warning( "Module returned invalid value, rejecting invite as spam" ) - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} # No spam-checker has rejected the request, let it pass. return self.NOT_SPAM async def user_may_send_3pid_invite( self, inviter_userid: str, medium: str, address: str, room_id: str - ) -> Union["synapse.api.errors.Codes", Literal["NOT_SPAM"]]: + ) -> Union[Tuple[Codes, dict], Literal["NOT_SPAM"]]: """Checks if a given user may invite a given threepid into the room Note that if the threepid is already associated with a Matrix user ID, Synapse @@ -519,20 +577,27 @@ class SpamChecker: if res is True or res is self.NOT_SPAM: continue elif res is False: - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} elif isinstance(res, synapse.api.errors.Codes): + return res, {} + elif ( + isinstance(res, tuple) + and len(res) == 2 + and isinstance(res[0], synapse.api.errors.Codes) + and isinstance(res[1], dict) + ): return res else: logger.warning( "Module returned invalid value, rejecting 3pid invite as spam" ) - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} return self.NOT_SPAM async def user_may_create_room( self, userid: str - ) -> Union["synapse.api.errors.Codes", Literal["NOT_SPAM"]]: + ) -> Union[Tuple[Codes, dict], Literal["NOT_SPAM"]]: """Checks if a given user may create a room Args: @@ -546,20 +611,27 @@ class SpamChecker: if res is True or res is self.NOT_SPAM: continue elif res is False: - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} elif isinstance(res, synapse.api.errors.Codes): + return res, {} + elif ( + isinstance(res, tuple) + and len(res) == 2 + and isinstance(res[0], synapse.api.errors.Codes) + and isinstance(res[1], dict) + ): return res else: logger.warning( "Module returned invalid value, rejecting room creation as spam" ) - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} return self.NOT_SPAM async def user_may_create_room_alias( self, userid: str, room_alias: RoomAlias - ) -> Union["synapse.api.errors.Codes", Literal["NOT_SPAM"]]: + ) -> Union[Tuple[Codes, dict], Literal["NOT_SPAM"]]: """Checks if a given user may create a room alias Args: @@ -575,20 +647,27 @@ class SpamChecker: if res is True or res is self.NOT_SPAM: continue elif res is False: - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} elif isinstance(res, synapse.api.errors.Codes): + return res, {} + elif ( + isinstance(res, tuple) + and len(res) == 2 + and isinstance(res[0], synapse.api.errors.Codes) + and isinstance(res[1], dict) + ): return res else: logger.warning( "Module returned invalid value, rejecting room create as spam" ) - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} return self.NOT_SPAM async def user_may_publish_room( self, userid: str, room_id: str - ) -> Union["synapse.api.errors.Codes", Literal["NOT_SPAM"]]: + ) -> Union[Tuple[Codes, dict], Literal["NOT_SPAM"]]: """Checks if a given user may publish a room to the directory Args: @@ -603,14 +682,21 @@ class SpamChecker: if res is True or res is self.NOT_SPAM: continue elif res is False: - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} elif isinstance(res, synapse.api.errors.Codes): + return res, {} + elif ( + isinstance(res, tuple) + and len(res) == 2 + and isinstance(res[0], synapse.api.errors.Codes) + and isinstance(res[1], dict) + ): return res else: logger.warning( "Module returned invalid value, rejecting room publication as spam" ) - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} return self.NOT_SPAM @@ -678,7 +764,7 @@ class SpamChecker: async def check_media_file_for_spam( self, file_wrapper: ReadableFileWrapper, file_info: FileInfo - ) -> Union["synapse.api.errors.Codes", Literal["NOT_SPAM"]]: + ) -> Union[Tuple[Codes, dict], Literal["NOT_SPAM"]]: """Checks if a piece of newly uploaded media should be blocked. This will be called for local uploads, downloads of remote media, each @@ -715,13 +801,20 @@ class SpamChecker: if res is False or res is self.NOT_SPAM: continue elif res is True: - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} elif isinstance(res, synapse.api.errors.Codes): + return res, {} + elif ( + isinstance(res, tuple) + and len(res) == 2 + and isinstance(res[0], synapse.api.errors.Codes) + and isinstance(res[1], dict) + ): return res else: logger.warning( "Module returned invalid value, rejecting media file as spam" ) - return synapse.api.errors.Codes.FORBIDDEN + return synapse.api.errors.Codes.FORBIDDEN, {} return self.NOT_SPAM |