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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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16
synapse/rest/admin/rooms.py
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@ -16,13 +16,14 @@ from http import HTTPStatus
from typing import TYPE_CHECKING, List, Optional, Tuple, cast
from urllib import parse as urlparse
from synapse.api.constants import EventTypes, JoinRules, Membership
from synapse.api.constants import Direction, EventTypes, JoinRules, Membership
from synapse.api.errors import AuthError, Codes, NotFoundError, SynapseError
from synapse.api.filtering import Filter
from synapse.http.servlet import (
ResolveRoomIdMixin,
RestServlet,
assert_params_in_dict,
parse_enum,
parse_integer,
parse_json_object_from_request,
parse_string,
@ -224,15 +225,8 @@ class ListRoomRestServlet(RestServlet):
errcode=Codes.INVALID_PARAM,
)
direction = parse_string(request, "dir", default="f")
if direction not in ("f", "b"):
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"Unknown direction: %s" % (direction,),
errcode=Codes.INVALID_PARAM,
)
reverse_order = True if direction == "b" else False
direction = parse_enum(request, "dir", Direction, default=Direction.FORWARDS)
reverse_order = True if direction == Direction.BACKWARDS else False
# Return list of rooms according to parameters
rooms, total_rooms = await self.store.get_rooms_paginate(
@ -949,7 +943,7 @@ class RoomTimestampToEventRestServlet(RestServlet):
await assert_user_is_admin(self._auth, requester)
timestamp = parse_integer(request, "ts", required=True)
direction = parse_string(request, "dir", default="f", allowed_values=["f", "b"])
direction = parse_enum(request, "dir", Direction, default=Direction.FORWARDS)
(
event_id,