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240 lines
8.4 KiB
Python
240 lines
8.4 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2019 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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from synapse.api.constants import Membership
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from synapse.api.errors import Codes, SynapseError
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from synapse.http.servlet import (
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RestServlet,
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assert_params_in_dict,
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parse_integer,
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parse_json_object_from_request,
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parse_string,
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)
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from synapse.rest.admin._base import (
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admin_patterns,
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assert_user_is_admin,
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historical_admin_path_patterns,
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)
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from synapse.storage.data_stores.main.room import RoomSortOrder
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from synapse.types import create_requester
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from synapse.util.async_helpers import maybe_awaitable
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logger = logging.getLogger(__name__)
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class ShutdownRoomRestServlet(RestServlet):
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"""Shuts down a room by removing all local users from the room and blocking
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all future invites and joins to the room. Any local aliases will be repointed
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to a new room created by `new_room_user_id` and kicked users will be auto
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joined to the new room.
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"""
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PATTERNS = historical_admin_path_patterns("/shutdown_room/(?P<room_id>[^/]+)")
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DEFAULT_MESSAGE = (
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"Sharing illegal content on this server is not permitted and rooms in"
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" violation will be blocked."
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)
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def __init__(self, hs):
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self.hs = hs
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self.store = hs.get_datastore()
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self.state = hs.get_state_handler()
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self._room_creation_handler = hs.get_room_creation_handler()
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self.event_creation_handler = hs.get_event_creation_handler()
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self.room_member_handler = hs.get_room_member_handler()
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self.auth = hs.get_auth()
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async def on_POST(self, request, room_id):
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requester = await self.auth.get_user_by_req(request)
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await assert_user_is_admin(self.auth, requester.user)
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content = parse_json_object_from_request(request)
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assert_params_in_dict(content, ["new_room_user_id"])
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new_room_user_id = content["new_room_user_id"]
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room_creator_requester = create_requester(new_room_user_id)
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message = content.get("message", self.DEFAULT_MESSAGE)
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room_name = content.get("room_name", "Content Violation Notification")
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info = await self._room_creation_handler.create_room(
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room_creator_requester,
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config={
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"preset": "public_chat",
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"name": room_name,
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"power_level_content_override": {"users_default": -10},
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},
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ratelimit=False,
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)
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new_room_id = info["room_id"]
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requester_user_id = requester.user.to_string()
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logger.info(
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"Shutting down room %r, joining to new room: %r", room_id, new_room_id
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)
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# This will work even if the room is already blocked, but that is
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# desirable in case the first attempt at blocking the room failed below.
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await self.store.block_room(room_id, requester_user_id)
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users = await self.state.get_current_users_in_room(room_id)
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kicked_users = []
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failed_to_kick_users = []
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for user_id in users:
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if not self.hs.is_mine_id(user_id):
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continue
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logger.info("Kicking %r from %r...", user_id, room_id)
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try:
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target_requester = create_requester(user_id)
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await self.room_member_handler.update_membership(
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requester=target_requester,
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target=target_requester.user,
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room_id=room_id,
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action=Membership.LEAVE,
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content={},
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ratelimit=False,
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require_consent=False,
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)
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await self.room_member_handler.forget(target_requester.user, room_id)
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await self.room_member_handler.update_membership(
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requester=target_requester,
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target=target_requester.user,
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room_id=new_room_id,
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action=Membership.JOIN,
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content={},
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ratelimit=False,
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require_consent=False,
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)
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kicked_users.append(user_id)
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except Exception:
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logger.exception(
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"Failed to leave old room and join new room for %r", user_id
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)
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failed_to_kick_users.append(user_id)
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await self.event_creation_handler.create_and_send_nonmember_event(
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room_creator_requester,
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{
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"type": "m.room.message",
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"content": {"body": message, "msgtype": "m.text"},
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"room_id": new_room_id,
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"sender": new_room_user_id,
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},
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ratelimit=False,
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)
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aliases_for_room = await maybe_awaitable(
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self.store.get_aliases_for_room(room_id)
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)
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await self.store.update_aliases_for_room(
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room_id, new_room_id, requester_user_id
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)
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return (
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200,
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{
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"kicked_users": kicked_users,
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"failed_to_kick_users": failed_to_kick_users,
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"local_aliases": aliases_for_room,
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"new_room_id": new_room_id,
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},
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)
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class ListRoomRestServlet(RestServlet):
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"""
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List all rooms that are known to the homeserver. Results are returned
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in a dictionary containing room information. Supports pagination.
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"""
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PATTERNS = admin_patterns("/rooms")
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def __init__(self, hs):
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self.store = hs.get_datastore()
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self.auth = hs.get_auth()
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self.admin_handler = hs.get_handlers().admin_handler
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async def on_GET(self, request):
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requester = await self.auth.get_user_by_req(request)
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await assert_user_is_admin(self.auth, requester.user)
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# Extract query parameters
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start = parse_integer(request, "from", default=0)
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limit = parse_integer(request, "limit", default=100)
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order_by = parse_string(request, "order_by", default="alphabetical")
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if order_by not in (
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RoomSortOrder.ALPHABETICAL.value,
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RoomSortOrder.SIZE.value,
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):
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raise SynapseError(
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400,
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"Unknown value for order_by: %s" % (order_by,),
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errcode=Codes.INVALID_PARAM,
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)
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search_term = parse_string(request, "search_term")
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if search_term == "":
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raise SynapseError(
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400,
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"search_term cannot be an empty string",
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errcode=Codes.INVALID_PARAM,
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)
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direction = parse_string(request, "dir", default="f")
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if direction not in ("f", "b"):
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raise SynapseError(
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400, "Unknown direction: %s" % (direction,), errcode=Codes.INVALID_PARAM
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)
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reverse_order = True if direction == "b" else False
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# Return list of rooms according to parameters
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rooms, total_rooms = await self.store.get_rooms_paginate(
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start, limit, order_by, reverse_order, search_term
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)
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response = {
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# next_token should be opaque, so return a value the client can parse
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"offset": start,
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"rooms": rooms,
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"total_rooms": total_rooms,
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}
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# Are there more rooms to paginate through after this?
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if (start + limit) < total_rooms:
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# There are. Calculate where the query should start from next time
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# to get the next part of the list
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response["next_batch"] = start + limit
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# Is it possible to paginate backwards? Check if we currently have an
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# offset
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if start > 0:
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if start > limit:
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# Going back one iteration won't take us to the start.
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# Calculate new offset
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response["prev_batch"] = start - limit
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else:
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response["prev_batch"] = 0
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return 200, response
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