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Add helper to parse an enum from query args & use it. (#14956)

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The `parse_enum` helper pulls an enum value from the query string
(by delegating down to the parse_string helper with values generated
from the enum).

This is used to pull out "f" and "b" in most places and then we thread
the resulting Direction enum throughout more code.
This commit is contained in:
Patrick Cloke 2023-02-01 16:35:24 -05:00 • committed by GitHub
parent 230a831c73
commit 1182ae5063
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25 changed files with 176 additions and 96 deletions
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12
synapse/federation/federation_server.py
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@ -34,7 +34,13 @@ from prometheus_client import Counter, Gauge, Histogram
from twisted.internet.abstract import isIPAddress
from twisted.python import failure
from synapse.api.constants import EduTypes, EventContentFields, EventTypes, Membership
from synapse.api.constants import (
Direction,
EduTypes,
EventContentFields,
EventTypes,
Membership,
)
from synapse.api.errors import (
AuthError,
Codes,
@ -218,7 +224,7 @@ class FederationServer(FederationBase):
return 200, res
async def on_timestamp_to_event_request(
self, origin: str, room_id: str, timestamp: int, direction: str
self, origin: str, room_id: str, timestamp: int, direction: Direction
) -> Tuple[int, Dict[str, Any]]:
"""When we receive a federated `/timestamp_to_event` request,
handle all of the logic for validating and fetching the event.
@ -228,7 +234,7 @@ class FederationServer(FederationBase):
room_id: Room to fetch the event from
timestamp: The point in time (inclusive) we should navigate from in
the given direction to find the closest event.
direction: ["f"|"b"] to indicate whether we should navigate forward
direction: indicates whether we should navigate forward
or backward from the given timestamp to find the closest event.
Returns: