diff options
Diffstat (limited to '')
| -rw-r--r-- | synapse/handlers/federation.py | 161 |
1 files changed, 81 insertions, 80 deletions
diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py index 3ebee38ebe..5ea8a7b603 100644 --- a/synapse/handlers/federation.py +++ b/synapse/handlers/federation.py @@ -21,7 +21,17 @@ import itertools import logging from collections.abc import Container from http import HTTPStatus -from typing import TYPE_CHECKING, Dict, Iterable, List, Optional, Sequence, Tuple, Union +from typing import ( + TYPE_CHECKING, + Dict, + Iterable, + List, + Optional, + Sequence, + Set, + Tuple, + Union, +) import attr from signedjson.key import decode_verify_key_bytes @@ -171,15 +181,17 @@ class FederationHandler(BaseHandler): self._ephemeral_messages_enabled = hs.config.enable_ephemeral_messages - async def on_receive_pdu(self, origin, pdu, sent_to_us_directly=False) -> None: + async def on_receive_pdu( + self, origin: str, pdu: EventBase, sent_to_us_directly: bool = False + ) -> None: """Process a PDU received via a federation /send/ transaction, or via backfill of missing prev_events Args: - origin (str): server which initiated the /send/ transaction. Will + origin: server which initiated the /send/ transaction. Will be used to fetch missing events or state. - pdu (FrozenEvent): received PDU - sent_to_us_directly (bool): True if this event was pushed to us; False if + pdu: received PDU + sent_to_us_directly: True if this event was pushed to us; False if we pulled it as the result of a missing prev_event. """ @@ -411,13 +423,15 @@ class FederationHandler(BaseHandler): await self._process_received_pdu(origin, pdu, state=state) - async def _get_missing_events_for_pdu(self, origin, pdu, prevs, min_depth): + async def _get_missing_events_for_pdu( + self, origin: str, pdu: EventBase, prevs: Set[str], min_depth: int + ) -> None: """ Args: - origin (str): Origin of the pdu. Will be called to get the missing events + origin: Origin of the pdu. Will be called to get the missing events pdu: received pdu - prevs (set(str)): List of event ids which we are missing - min_depth (int): Minimum depth of events to return. + prevs: List of event ids which we are missing + min_depth: Minimum depth of events to return. """ room_id = pdu.room_id @@ -778,7 +792,7 @@ class FederationHandler(BaseHandler): origin: str, event: EventBase, state: Optional[Iterable[EventBase]], - ): + ) -> None: """Called when we have a new pdu. We need to do auth checks and put it through the StateHandler. @@ -887,7 +901,9 @@ class FederationHandler(BaseHandler): logger.exception("Failed to resync device for %s", sender) @log_function - async def backfill(self, dest, room_id, limit, extremities): + async def backfill( + self, dest: str, room_id: str, limit: int, extremities: List[str] + ) -> List[EventBase]: """Trigger a backfill request to `dest` for the given `room_id` This will attempt to get more events from the remote. If the other side @@ -1142,16 +1158,15 @@ class FederationHandler(BaseHandler): curr_state = await self.state_handler.get_current_state(room_id) - def get_domains_from_state(state): + def get_domains_from_state(state: StateMap[EventBase]) -> List[Tuple[str, int]]: """Get joined domains from state Args: - state (dict[tuple, FrozenEvent]): State map from type/state - key to event. + state: State map from type/state key to event. Returns: - list[tuple[str, int]]: Returns a list of servers with the - lowest depth of their joins. Sorted by lowest depth first. + Returns a list of servers with the lowest depth of their joins. + Sorted by lowest depth first. """ joined_users = [ (state_key, int(event.depth)) @@ -1179,7 +1194,7 @@ class FederationHandler(BaseHandler): domain for domain, depth in curr_domains if domain != self.server_name ] - async def try_backfill(domains): + async def try_backfill(domains: List[str]) -> bool: # TODO: Should we try multiple of these at a time? for dom in domains: try: @@ -1258,21 +1273,25 @@ class FederationHandler(BaseHandler): } for e_id, _ in sorted_extremeties_tuple: - likely_domains = get_domains_from_state(states[e_id]) + likely_extremeties_domains = get_domains_from_state(states[e_id]) success = await try_backfill( - [dom for dom, _ in likely_domains if dom not in tried_domains] + [ + dom + for dom, _ in likely_extremeties_domains + if dom not in tried_domains + ] ) if success: return True - tried_domains.update(dom for dom, _ in likely_domains) + tried_domains.update(dom for dom, _ in likely_extremeties_domains) return False async def _get_events_and_persist( self, destination: str, room_id: str, events: Iterable[str] - ): + ) -> None: """Fetch the given events from a server, and persist them as outliers. This function *does not* recursively get missing auth events of the @@ -1348,7 +1367,7 @@ class FederationHandler(BaseHandler): event_infos, ) - def _sanity_check_event(self, ev): + def _sanity_check_event(self, ev: EventBase) -> None: """ Do some early sanity checks of a received event @@ -1357,9 +1376,7 @@ class FederationHandler(BaseHandler): or cascade of event fetches. Args: - ev (synapse.events.EventBase): event to be checked - - Returns: None + ev: event to be checked Raises: SynapseError if the event does not pass muster @@ -1380,7 +1397,7 @@ class FederationHandler(BaseHandler): ) raise SynapseError(HTTPStatus.BAD_REQUEST, "Too many auth_events") - async def send_invite(self, target_host, event): + async def send_invite(self, target_host: str, event: EventBase) -> EventBase: """Sends the invite to the remote server for signing. Invites must be signed by the invitee's server before distribution. @@ -1528,12 +1545,13 @@ class FederationHandler(BaseHandler): run_in_background(self._handle_queued_pdus, room_queue) - async def _handle_queued_pdus(self, room_queue): + async def _handle_queued_pdus( + self, room_queue: List[Tuple[EventBase, str]] + ) -> None: """Process PDUs which got queued up while we were busy send_joining. Args: - room_queue (list[FrozenEvent, str]): list of PDUs to be processed - and the servers that sent them + room_queue: list of PDUs to be processed and the servers that sent them """ for p, origin in room_queue: try: @@ -1612,7 +1630,7 @@ class FederationHandler(BaseHandler): return event - async def on_send_join_request(self, origin, pdu): + async def on_send_join_request(self, origin: str, pdu: EventBase) -> JsonDict: """We have received a join event for a room. Fully process it and respond with the current state and auth chains. """ @@ -1668,7 +1686,7 @@ class FederationHandler(BaseHandler): async def on_invite_request( self, origin: str, event: EventBase, room_version: RoomVersion - ): + ) -> EventBase: """We've got an invite event. Process and persist it. Sign it. Respond with the now signed event. @@ -1841,7 +1859,7 @@ class FederationHandler(BaseHandler): return event - async def on_send_leave_request(self, origin, pdu): + async def on_send_leave_request(self, origin: str, pdu: EventBase) -> None: """ We have received a leave event for a room. Fully process it.""" event = pdu @@ -1969,12 +1987,17 @@ class FederationHandler(BaseHandler): else: return None - async def get_min_depth_for_context(self, context): + async def get_min_depth_for_context(self, context: str) -> int: return await self.store.get_min_depth(context) async def _handle_new_event( - self, origin, event, state=None, auth_events=None, backfilled=False - ): + self, + origin: str, + event: EventBase, + state: Optional[Iterable[EventBase]] = None, + auth_events: Optional[MutableStateMap[EventBase]] = None, + backfilled: bool = False, + ) -> EventContext: context = await self._prep_event( origin, event, state=state, auth_events=auth_events, backfilled=backfilled ) @@ -2280,40 +2303,14 @@ class FederationHandler(BaseHandler): logger.warning("Soft-failing %r because %s", event, e) event.internal_metadata.soft_failed = True - async def on_query_auth( - self, origin, event_id, room_id, remote_auth_chain, rejects, missing - ): - in_room = await self.auth.check_host_in_room(room_id, origin) - if not in_room: - raise AuthError(403, "Host not in room.") - - event = await self.store.get_event(event_id, check_room_id=room_id) - - # Just go through and process each event in `remote_auth_chain`. We - # don't want to fall into the trap of `missing` being wrong. - for e in remote_auth_chain: - try: - await self._handle_new_event(origin, e) - except AuthError: - pass - - # Now get the current auth_chain for the event. - local_auth_chain = await self.store.get_auth_chain( - room_id, list(event.auth_event_ids()), include_given=True - ) - - # TODO: Check if we would now reject event_id. If so we need to tell - # everyone. - - ret = await self.construct_auth_difference(local_auth_chain, remote_auth_chain) - - logger.debug("on_query_auth returning: %s", ret) - - return ret - async def on_get_missing_events( - self, origin, room_id, earliest_events, latest_events, limit - ): + self, + origin: str, + room_id: str, + earliest_events: List[str], + latest_events: List[str], + limit: int, + ) -> List[EventBase]: in_room = await self.auth.check_host_in_room(room_id, origin) if not in_room: raise AuthError(403, "Host not in room.") @@ -2617,8 +2614,8 @@ class FederationHandler(BaseHandler): assumes that we have already processed all events in remote_auth Params: - local_auth (list) - remote_auth (list) + local_auth + remote_auth Returns: dict @@ -2742,8 +2739,8 @@ class FederationHandler(BaseHandler): @log_function async def exchange_third_party_invite( - self, sender_user_id, target_user_id, room_id, signed - ): + self, sender_user_id: str, target_user_id: str, room_id: str, signed: JsonDict + ) -> None: third_party_invite = {"signed": signed} event_dict = { @@ -2835,8 +2832,12 @@ class FederationHandler(BaseHandler): await member_handler.send_membership_event(None, event, context) async def add_display_name_to_third_party_invite( - self, room_version, event_dict, event, context - ): + self, + room_version: str, + event_dict: JsonDict, + event: EventBase, + context: EventContext, + ) -> Tuple[EventBase, EventContext]: key = ( EventTypes.ThirdPartyInvite, event.content["third_party_invite"]["signed"]["token"], @@ -2872,13 +2873,13 @@ class FederationHandler(BaseHandler): EventValidator().validate_new(event, self.config) return (event, context) - async def _check_signature(self, event, context): + async def _check_signature(self, event: EventBase, context: EventContext) -> None: """ Checks that the signature in the event is consistent with its invite. Args: - event (Event): The m.room.member event to check - context (EventContext): + event: The m.room.member event to check + context: Raises: AuthError: if signature didn't match any keys, or key has been @@ -2964,13 +2965,13 @@ class FederationHandler(BaseHandler): raise last_exception - async def _check_key_revocation(self, public_key, url): + async def _check_key_revocation(self, public_key: str, url: str) -> None: """ Checks whether public_key has been revoked. Args: - public_key (str): base-64 encoded public key. - url (str): Key revocation URL. + public_key: base-64 encoded public key. + url: Key revocation URL. Raises: AuthError: if they key has been revoked. |