diff options
Diffstat (limited to 'synapse/federation/federation_base.py')
| -rw-r--r-- | synapse/federation/federation_base.py | 60 |
1 files changed, 37 insertions, 23 deletions
diff --git a/synapse/federation/federation_base.py b/synapse/federation/federation_base.py index 9fff65716a..190ea1fba1 100644 --- a/synapse/federation/federation_base.py +++ b/synapse/federation/federation_base.py @@ -15,11 +15,13 @@ # limitations under the License. import logging from collections import namedtuple +from typing import Iterable, List import six from twisted.internet import defer -from twisted.internet.defer import DeferredList +from twisted.internet.defer import Deferred, DeferredList +from twisted.python.failure import Failure from synapse.api.constants import MAX_DEPTH, EventTypes, Membership from synapse.api.errors import Codes, SynapseError @@ -29,6 +31,7 @@ from synapse.api.room_versions import ( RoomVersion, ) from synapse.crypto.event_signing import check_event_content_hash +from synapse.crypto.keyring import Keyring from synapse.events import EventBase, make_event_from_dict from synapse.events.utils import prune_event from synapse.http.servlet import assert_params_in_dict @@ -56,7 +59,12 @@ class FederationBase(object): @defer.inlineCallbacks def _check_sigs_and_hash_and_fetch( - self, origin, pdus, room_version, outlier=False, include_none=False + self, + origin: str, + pdus: List[EventBase], + room_version: str, + outlier: bool = False, + include_none: bool = False, ): """Takes a list of PDUs and checks the signatures and hashs of each one. If a PDU fails its signature check then we check if we have it in @@ -69,11 +77,11 @@ class FederationBase(object): a new list. Args: - origin (str) - pdu (list) - room_version (str) - outlier (bool): Whether the events are outliers or not - include_none (str): Whether to include None in the returned list + origin + pdu + room_version + outlier: Whether the events are outliers or not + include_none: Whether to include None in the returned list for events that have failed their checks Returns: @@ -82,7 +90,7 @@ class FederationBase(object): deferreds = self._check_sigs_and_hashes(room_version, pdus) @defer.inlineCallbacks - def handle_check_result(pdu, deferred): + def handle_check_result(pdu: EventBase, deferred: Deferred): try: res = yield make_deferred_yieldable(deferred) except SynapseError: @@ -96,8 +104,10 @@ class FederationBase(object): if not res and pdu.origin != origin: try: + # This should not exist in the base implementation, until + # this is fixed, ignore it for typing. See issue #6997. res = yield defer.ensureDeferred( - self.get_pdu( + self.get_pdu( # type: ignore destinations=[pdu.origin], event_id=pdu.event_id, room_version=room_version, @@ -127,21 +137,23 @@ class FederationBase(object): else: return [p for p in valid_pdus if p] - def _check_sigs_and_hash(self, room_version, pdu): + def _check_sigs_and_hash(self, room_version: str, pdu: EventBase) -> Deferred: return make_deferred_yieldable( self._check_sigs_and_hashes(room_version, [pdu])[0] ) - def _check_sigs_and_hashes(self, room_version, pdus): + def _check_sigs_and_hashes( + self, room_version: str, pdus: List[EventBase] + ) -> List[Deferred]: """Checks that each of the received events is correctly signed by the sending server. Args: - room_version (str): The room version of the PDUs - pdus (list[FrozenEvent]): the events to be checked + room_version: The room version of the PDUs + pdus: the events to be checked Returns: - list[Deferred]: for each input event, a deferred which: + For each input event, a deferred which: * returns the original event if the checks pass * returns a redacted version of the event (if the signature matched but the hash did not) @@ -152,7 +164,7 @@ class FederationBase(object): ctx = LoggingContext.current_context() - def callback(_, pdu): + def callback(_, pdu: EventBase): with PreserveLoggingContext(ctx): if not check_event_content_hash(pdu): # let's try to distinguish between failures because the event was @@ -189,7 +201,7 @@ class FederationBase(object): return pdu - def errback(failure, pdu): + def errback(failure: Failure, pdu: EventBase): failure.trap(SynapseError) with PreserveLoggingContext(ctx): logger.warning( @@ -215,16 +227,18 @@ class PduToCheckSig( pass -def _check_sigs_on_pdus(keyring, room_version, pdus): +def _check_sigs_on_pdus( + keyring: Keyring, room_version: str, pdus: Iterable[EventBase] +) -> List[Deferred]: """Check that the given events are correctly signed Args: - keyring (synapse.crypto.Keyring): keyring object to do the checks - room_version (str): the room version of the PDUs - pdus (Collection[EventBase]): the events to be checked + keyring: keyring object to do the checks + room_version: the room version of the PDUs + pdus: the events to be checked Returns: - List[Deferred]: a Deferred for each event in pdus, which will either succeed if + A Deferred for each event in pdus, which will either succeed if the signatures are valid, or fail (with a SynapseError) if not. """ @@ -329,7 +343,7 @@ def _check_sigs_on_pdus(keyring, room_version, pdus): return [_flatten_deferred_list(p.deferreds) for p in pdus_to_check] -def _flatten_deferred_list(deferreds): +def _flatten_deferred_list(deferreds: List[Deferred]) -> Deferred: """Given a list of deferreds, either return the single deferred, combine into a DeferredList, or return an already resolved deferred. """ @@ -341,7 +355,7 @@ def _flatten_deferred_list(deferreds): return defer.succeed(None) -def _is_invite_via_3pid(event): +def _is_invite_via_3pid(event: EventBase) -> bool: return ( event.type == EventTypes.Member and event.membership == Membership.INVITE |