267 lines
9.0 KiB
Python
267 lines
9.0 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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# Copyright 2018-2019 New Vector Ltd
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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 typing import TYPE_CHECKING, Tuple
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from twisted.web.server import Request
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from synapse.api.errors import AuthError, Codes, NotFoundError, SynapseError
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from synapse.http.servlet import RestServlet, parse_boolean, parse_integer
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from synapse.rest.admin._base import (
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admin_patterns,
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assert_requester_is_admin,
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assert_user_is_admin,
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)
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from synapse.types import JsonDict
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if TYPE_CHECKING:
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from synapse.app.homeserver import HomeServer
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logger = logging.getLogger(__name__)
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class QuarantineMediaInRoom(RestServlet):
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"""Quarantines all media in a room so that no one can download it via
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this server.
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"""
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PATTERNS = (
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admin_patterns("/room/(?P<room_id>[^/]+)/media/quarantine")
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+
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# This path kept around for legacy reasons
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admin_patterns("/quarantine_media/(?P<room_id>[^/]+)")
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)
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def __init__(self, hs: "HomeServer"):
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self.store = hs.get_datastore()
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self.auth = hs.get_auth()
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async def on_POST(self, request: Request, room_id: str) -> Tuple[int, JsonDict]:
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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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logging.info("Quarantining room: %s", room_id)
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# Quarantine all media in this room
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num_quarantined = await self.store.quarantine_media_ids_in_room(
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room_id, requester.user.to_string()
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)
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return 200, {"num_quarantined": num_quarantined}
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class QuarantineMediaByUser(RestServlet):
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"""Quarantines all local media by a given user so that no one can download it via
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this server.
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"""
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PATTERNS = admin_patterns("/user/(?P<user_id>[^/]+)/media/quarantine")
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def __init__(self, hs: "HomeServer"):
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self.store = hs.get_datastore()
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self.auth = hs.get_auth()
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async def on_POST(self, request: Request, user_id: str) -> Tuple[int, JsonDict]:
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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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logging.info("Quarantining local media by user: %s", user_id)
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# Quarantine all media this user has uploaded
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num_quarantined = await self.store.quarantine_media_ids_by_user(
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user_id, requester.user.to_string()
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)
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return 200, {"num_quarantined": num_quarantined}
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class QuarantineMediaByID(RestServlet):
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"""Quarantines local or remote media by a given ID so that no one can download
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it via this server.
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"""
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PATTERNS = admin_patterns(
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"/media/quarantine/(?P<server_name>[^/]+)/(?P<media_id>[^/]+)"
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)
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def __init__(self, hs: "HomeServer"):
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self.store = hs.get_datastore()
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self.auth = hs.get_auth()
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async def on_POST(
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self, request: Request, server_name: str, media_id: str
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) -> Tuple[int, JsonDict]:
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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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logging.info("Quarantining local media by ID: %s/%s", server_name, media_id)
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# Quarantine this media id
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await self.store.quarantine_media_by_id(
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server_name, media_id, requester.user.to_string()
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)
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return 200, {}
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class ProtectMediaByID(RestServlet):
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"""Protect local media from being quarantined."""
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PATTERNS = admin_patterns("/media/protect/(?P<media_id>[^/]+)")
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def __init__(self, hs: "HomeServer"):
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self.store = hs.get_datastore()
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self.auth = hs.get_auth()
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async def on_POST(self, request: Request, media_id: str) -> Tuple[int, JsonDict]:
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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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logging.info("Protecting local media by ID: %s", media_id)
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# Quarantine this media id
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await self.store.mark_local_media_as_safe(media_id)
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return 200, {}
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class ListMediaInRoom(RestServlet):
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"""Lists all of the media in a given room."""
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PATTERNS = admin_patterns("/room/(?P<room_id>[^/]+)/media")
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def __init__(self, hs: "HomeServer"):
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self.store = hs.get_datastore()
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self.auth = hs.get_auth()
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async def on_GET(self, request: Request, room_id: str) -> Tuple[int, JsonDict]:
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requester = await self.auth.get_user_by_req(request)
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is_admin = await self.auth.is_server_admin(requester.user)
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if not is_admin:
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raise AuthError(403, "You are not a server admin")
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local_mxcs, remote_mxcs = await self.store.get_media_mxcs_in_room(room_id)
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return 200, {"local": local_mxcs, "remote": remote_mxcs}
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class PurgeMediaCacheRestServlet(RestServlet):
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PATTERNS = admin_patterns("/purge_media_cache")
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def __init__(self, hs: "HomeServer"):
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self.media_repository = hs.get_media_repository()
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self.auth = hs.get_auth()
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async def on_POST(self, request: Request) -> Tuple[int, JsonDict]:
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await assert_requester_is_admin(self.auth, request)
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before_ts = parse_integer(request, "before_ts", required=True)
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logger.info("before_ts: %r", before_ts)
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ret = await self.media_repository.delete_old_remote_media(before_ts)
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return 200, ret
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class DeleteMediaByID(RestServlet):
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"""Delete local media by a given ID. Removes it from this server."""
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PATTERNS = admin_patterns("/media/(?P<server_name>[^/]+)/(?P<media_id>[^/]+)")
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def __init__(self, hs: "HomeServer"):
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self.store = hs.get_datastore()
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self.auth = hs.get_auth()
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self.server_name = hs.hostname
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self.media_repository = hs.get_media_repository()
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async def on_DELETE(
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self, request: Request, server_name: str, media_id: str
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) -> Tuple[int, JsonDict]:
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await assert_requester_is_admin(self.auth, request)
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if self.server_name != server_name:
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raise SynapseError(400, "Can only delete local media")
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if await self.store.get_local_media(media_id) is None:
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raise NotFoundError("Unknown media")
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logging.info("Deleting local media by ID: %s", media_id)
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deleted_media, total = await self.media_repository.delete_local_media(media_id)
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return 200, {"deleted_media": deleted_media, "total": total}
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class DeleteMediaByDateSize(RestServlet):
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"""Delete local media and local copies of remote media by
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timestamp and size.
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"""
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PATTERNS = admin_patterns("/media/(?P<server_name>[^/]+)/delete")
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def __init__(self, hs: "HomeServer"):
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self.store = hs.get_datastore()
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self.auth = hs.get_auth()
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self.server_name = hs.hostname
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self.media_repository = hs.get_media_repository()
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async def on_POST(self, request: Request, server_name: str) -> Tuple[int, JsonDict]:
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await assert_requester_is_admin(self.auth, request)
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before_ts = parse_integer(request, "before_ts", required=True)
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size_gt = parse_integer(request, "size_gt", default=0)
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keep_profiles = parse_boolean(request, "keep_profiles", default=True)
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if before_ts < 0:
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raise SynapseError(
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400,
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"Query parameter before_ts must be a string representing a positive integer.",
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errcode=Codes.INVALID_PARAM,
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)
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if size_gt < 0:
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raise SynapseError(
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400,
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"Query parameter size_gt must be a string representing a positive integer.",
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errcode=Codes.INVALID_PARAM,
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)
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if self.server_name != server_name:
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raise SynapseError(400, "Can only delete local media")
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logging.info(
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"Deleting local media by timestamp: %s, size larger than: %s, keep profile media: %s"
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% (before_ts, size_gt, keep_profiles)
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)
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deleted_media, total = await self.media_repository.delete_old_local_media(
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before_ts, size_gt, keep_profiles
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)
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return 200, {"deleted_media": deleted_media, "total": total}
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def register_servlets_for_media_repo(hs: "HomeServer", http_server):
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"""
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Media repo specific APIs.
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"""
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PurgeMediaCacheRestServlet(hs).register(http_server)
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QuarantineMediaInRoom(hs).register(http_server)
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QuarantineMediaByID(hs).register(http_server)
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QuarantineMediaByUser(hs).register(http_server)
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ProtectMediaByID(hs).register(http_server)
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ListMediaInRoom(hs).register(http_server)
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DeleteMediaByID(hs).register(http_server)
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DeleteMediaByDateSize(hs).register(http_server)
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