# Copyright 2014-2016 OpenMarket Ltd # Copyright 2018-2019 New Vector Ltd # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import logging from http import HTTPStatus from typing import TYPE_CHECKING, Tuple from synapse.api.errors import Codes, NotFoundError, SynapseError from synapse.http.server import HttpServer from synapse.http.servlet import RestServlet, parse_boolean, parse_integer, parse_string from synapse.http.site import SynapseRequest from synapse.rest.admin._base import ( admin_patterns, assert_requester_is_admin, assert_user_is_admin, ) from synapse.storage.databases.main.media_repository import MediaSortOrder from synapse.types import JsonDict, UserID if TYPE_CHECKING: from synapse.server import HomeServer logger = logging.getLogger(__name__) class QuarantineMediaInRoom(RestServlet): """Quarantines all media in a room so that no one can download it via this server. """ PATTERNS = [ *admin_patterns("/room/(?P<room_id>[^/]*)/media/quarantine$"), # This path kept around for legacy reasons *admin_patterns("/quarantine_media/(?P<room_id>[^/]*)$"), ] def __init__(self, hs: "HomeServer"): self.store = hs.get_datastore() self.auth = hs.get_auth() async def on_POST( self, request: SynapseRequest, room_id: str ) -> Tuple[int, JsonDict]: requester = await self.auth.get_user_by_req(request) await assert_user_is_admin(self.auth, requester.user) logging.info("Quarantining room: %s", room_id) # Quarantine all media in this room num_quarantined = await self.store.quarantine_media_ids_in_room( room_id, requester.user.to_string() ) return HTTPStatus.OK, {"num_quarantined": num_quarantined} class QuarantineMediaByUser(RestServlet): """Quarantines all local media by a given user so that no one can download it via this server. """ PATTERNS = admin_patterns("/user/(?P<user_id>[^/]*)/media/quarantine$") def __init__(self, hs: "HomeServer"): self.store = hs.get_datastore() self.auth = hs.get_auth() async def on_POST( self, request: SynapseRequest, user_id: str ) -> Tuple[int, JsonDict]: requester = await self.auth.get_user_by_req(request) await assert_user_is_admin(self.auth, requester.user) logging.info("Quarantining local media by user: %s", user_id) # Quarantine all media this user has uploaded num_quarantined = await self.store.quarantine_media_ids_by_user( user_id, requester.user.to_string() ) return HTTPStatus.OK, {"num_quarantined": num_quarantined} class QuarantineMediaByID(RestServlet): """Quarantines local or remote media by a given ID so that no one can download it via this server. """ PATTERNS = admin_patterns( "/media/quarantine/(?P<server_name>[^/]*)/(?P<media_id>[^/]*)$" ) def __init__(self, hs: "HomeServer"): self.store = hs.get_datastore() self.auth = hs.get_auth() async def on_POST( self, request: SynapseRequest, server_name: str, media_id: str ) -> Tuple[int, JsonDict]: requester = await self.auth.get_user_by_req(request) await assert_user_is_admin(self.auth, requester.user) logging.info("Quarantining local media by ID: %s/%s", server_name, media_id) # Quarantine this media id await self.store.quarantine_media_by_id( server_name, media_id, requester.user.to_string() ) return HTTPStatus.OK, {} class UnquarantineMediaByID(RestServlet): """Quarantines local or remote media by a given ID so that no one can download it via this server. """ PATTERNS = admin_patterns( "/media/unquarantine/(?P<server_name>[^/]*)/(?P<media_id>[^/]*)$" ) def __init__(self, hs: "HomeServer"): self.store = hs.get_datastore() self.auth = hs.get_auth() async def on_POST( self, request: SynapseRequest, server_name: str, media_id: str ) -> Tuple[int, JsonDict]: await assert_requester_is_admin(self.auth, request) logging.info( "Remove from quarantine local media by ID: %s/%s", server_name, media_id ) # Remove from quarantine this media id await self.store.quarantine_media_by_id(server_name, media_id, None) return HTTPStatus.OK, {} class ProtectMediaByID(RestServlet): """Protect local media from being quarantined.""" PATTERNS = admin_patterns("/media/protect/(?P<media_id>[^/]*)$") def __init__(self, hs: "HomeServer"): self.store = hs.get_datastore() self.auth = hs.get_auth() async def on_POST( self, request: SynapseRequest, media_id: str ) -> Tuple[int, JsonDict]: await assert_requester_is_admin(self.auth, request) logging.info("Protecting local media by ID: %s", media_id) # Protect this media id await self.store.mark_local_media_as_safe(media_id, safe=True) return HTTPStatus.OK, {} class UnprotectMediaByID(RestServlet): """Unprotect local media from being quarantined.""" PATTERNS = admin_patterns("/media/unprotect/(?P<media_id>[^/]*)$") def __init__(self, hs: "HomeServer"): self.store = hs.get_datastore() self.auth = hs.get_auth() async def on_POST( self, request: SynapseRequest, media_id: str ) -> Tuple[int, JsonDict]: await assert_requester_is_admin(self.auth, request) logging.info("Unprotecting local media by ID: %s", media_id) # Unprotect this media id await self.store.mark_local_media_as_safe(media_id, safe=False) return HTTPStatus.OK, {} class ListMediaInRoom(RestServlet): """Lists all of the media in a given room.""" PATTERNS = admin_patterns("/room/(?P<room_id>[^/]*)/media$") def __init__(self, hs: "HomeServer"): self.store = hs.get_datastore() self.auth = hs.get_auth() async def on_GET( self, request: SynapseRequest, room_id: str ) -> Tuple[int, JsonDict]: await assert_requester_is_admin(self.auth, request) local_mxcs, remote_mxcs = await self.store.get_media_mxcs_in_room(room_id) return HTTPStatus.OK, {"local": local_mxcs, "remote": remote_mxcs} class PurgeMediaCacheRestServlet(RestServlet): PATTERNS = admin_patterns("/purge_media_cache$") def __init__(self, hs: "HomeServer"): self.media_repository = hs.get_media_repository() self.auth = hs.get_auth() async def on_POST(self, request: SynapseRequest) -> Tuple[int, JsonDict]: await assert_requester_is_admin(self.auth, request) before_ts = parse_integer(request, "before_ts", required=True) logger.info("before_ts: %r", before_ts) if before_ts < 0: raise SynapseError( HTTPStatus.BAD_REQUEST, "Query parameter before_ts must be a positive integer.", errcode=Codes.INVALID_PARAM, ) elif before_ts < 30000000000: # Dec 1970 in milliseconds, Aug 2920 in seconds raise SynapseError( HTTPStatus.BAD_REQUEST, "Query parameter before_ts you provided is from the year 1970. " + "Double check that you are providing a timestamp in milliseconds.", errcode=Codes.INVALID_PARAM, ) ret = await self.media_repository.delete_old_remote_media(before_ts) return HTTPStatus.OK, ret class DeleteMediaByID(RestServlet): """Delete local media by a given ID. Removes it from this server.""" PATTERNS = admin_patterns("/media/(?P<server_name>[^/]*)/(?P<media_id>[^/]*)$") def __init__(self, hs: "HomeServer"): self.store = hs.get_datastore() self.auth = hs.get_auth() self.server_name = hs.hostname self.media_repository = hs.get_media_repository() async def on_DELETE( self, request: SynapseRequest, server_name: str, media_id: str ) -> Tuple[int, JsonDict]: await assert_requester_is_admin(self.auth, request) if self.server_name != server_name: raise SynapseError(HTTPStatus.BAD_REQUEST, "Can only delete local media") if await self.store.get_local_media(media_id) is None: raise NotFoundError("Unknown media") logging.info("Deleting local media by ID: %s", media_id) deleted_media, total = await self.media_repository.delete_local_media_ids( [media_id] ) return HTTPStatus.OK, {"deleted_media": deleted_media, "total": total} class DeleteMediaByDateSize(RestServlet): """Delete local media and local copies of remote media by timestamp and size. """ PATTERNS = admin_patterns("/media/(?P<server_name>[^/]*)/delete$") def __init__(self, hs: "HomeServer"): self.store = hs.get_datastore() self.auth = hs.get_auth() self.server_name = hs.hostname self.media_repository = hs.get_media_repository() async def on_POST( self, request: SynapseRequest, server_name: str ) -> Tuple[int, JsonDict]: await assert_requester_is_admin(self.auth, request) before_ts = parse_integer(request, "before_ts", required=True) size_gt = parse_integer(request, "size_gt", default=0) keep_profiles = parse_boolean(request, "keep_profiles", default=True) if before_ts < 0: raise SynapseError( HTTPStatus.BAD_REQUEST, "Query parameter before_ts must be a positive integer.", errcode=Codes.INVALID_PARAM, ) elif before_ts < 30000000000: # Dec 1970 in milliseconds, Aug 2920 in seconds raise SynapseError( HTTPStatus.BAD_REQUEST, "Query parameter before_ts you provided is from the year 1970. " + "Double check that you are providing a timestamp in milliseconds.", errcode=Codes.INVALID_PARAM, ) if size_gt < 0: raise SynapseError( HTTPStatus.BAD_REQUEST, "Query parameter size_gt must be a string representing a positive integer.", errcode=Codes.INVALID_PARAM, ) if self.server_name != server_name: raise SynapseError(HTTPStatus.BAD_REQUEST, "Can only delete local media") logging.info( "Deleting local media by timestamp: %s, size larger than: %s, keep profile media: %s" % (before_ts, size_gt, keep_profiles) ) deleted_media, total = await self.media_repository.delete_old_local_media( before_ts, size_gt, keep_profiles ) return HTTPStatus.OK, {"deleted_media": deleted_media, "total": total} class UserMediaRestServlet(RestServlet): """ Gets information about all uploaded local media for a specific `user_id`. With DELETE request you can delete all this media. Example: http://localhost:8008/_synapse/admin/v1/users/@user:server/media Args: The parameters `from` and `limit` are required for pagination. By default, a `limit` of 100 is used. Returns: A list of media and an integer representing the total number of media that exist given for this user """ PATTERNS = admin_patterns("/users/(?P<user_id>[^/]*)/media$") def __init__(self, hs: "HomeServer"): self.is_mine = hs.is_mine self.auth = hs.get_auth() self.store = hs.get_datastore() self.media_repository = hs.get_media_repository() async def on_GET( self, request: SynapseRequest, user_id: str ) -> Tuple[int, JsonDict]: # This will always be set by the time Twisted calls us. assert request.args is not None await assert_requester_is_admin(self.auth, request) if not self.is_mine(UserID.from_string(user_id)): raise SynapseError(HTTPStatus.BAD_REQUEST, "Can only look up local users") user = await self.store.get_user_by_id(user_id) if user is None: raise NotFoundError("Unknown user") start = parse_integer(request, "from", default=0) limit = parse_integer(request, "limit", default=100) if start < 0: raise SynapseError( HTTPStatus.BAD_REQUEST, "Query parameter from must be a string representing a positive integer.", errcode=Codes.INVALID_PARAM, ) if limit < 0: raise SynapseError( HTTPStatus.BAD_REQUEST, "Query parameter limit must be a string representing a positive integer.", errcode=Codes.INVALID_PARAM, ) # If neither `order_by` nor `dir` is set, set the default order # to newest media is on top for backward compatibility. if b"order_by" not in request.args and b"dir" not in request.args: order_by = MediaSortOrder.CREATED_TS.value direction = "b" else: order_by = parse_string( request, "order_by", default=MediaSortOrder.CREATED_TS.value, allowed_values=[sort_order.value for sort_order in MediaSortOrder], ) direction = parse_string( request, "dir", default="f", allowed_values=("f", "b") ) media, total = await self.store.get_local_media_by_user_paginate( start, limit, user_id, order_by, direction ) ret = {"media": media, "total": total} if (start + limit) < total: ret["next_token"] = start + len(media) return HTTPStatus.OK, ret async def on_DELETE( self, request: SynapseRequest, user_id: str ) -> Tuple[int, JsonDict]: # This will always be set by the time Twisted calls us. assert request.args is not None await assert_requester_is_admin(self.auth, request) if not self.is_mine(UserID.from_string(user_id)): raise SynapseError(HTTPStatus.BAD_REQUEST, "Can only look up local users") user = await self.store.get_user_by_id(user_id) if user is None: raise NotFoundError("Unknown user") start = parse_integer(request, "from", default=0) limit = parse_integer(request, "limit", default=100) if start < 0: raise SynapseError( HTTPStatus.BAD_REQUEST, "Query parameter from must be a string representing a positive integer.", errcode=Codes.INVALID_PARAM, ) if limit < 0: raise SynapseError( HTTPStatus.BAD_REQUEST, "Query parameter limit must be a string representing a positive integer.", errcode=Codes.INVALID_PARAM, ) # If neither `order_by` nor `dir` is set, set the default order # to newest media is on top for backward compatibility. if b"order_by" not in request.args and b"dir" not in request.args: order_by = MediaSortOrder.CREATED_TS.value direction = "b" else: order_by = parse_string( request, "order_by", default=MediaSortOrder.CREATED_TS.value, allowed_values=[sort_order.value for sort_order in MediaSortOrder], ) direction = parse_string( request, "dir", default="f", allowed_values=("f", "b") ) media, _ = await self.store.get_local_media_by_user_paginate( start, limit, user_id, order_by, direction ) deleted_media, total = await self.media_repository.delete_local_media_ids( [row["media_id"] for row in media] ) return HTTPStatus.OK, {"deleted_media": deleted_media, "total": total} def register_servlets_for_media_repo(hs: "HomeServer", http_server: HttpServer) -> None: """ Media repo specific APIs. """ PurgeMediaCacheRestServlet(hs).register(http_server) QuarantineMediaInRoom(hs).register(http_server) QuarantineMediaByID(hs).register(http_server) UnquarantineMediaByID(hs).register(http_server) QuarantineMediaByUser(hs).register(http_server) ProtectMediaByID(hs).register(http_server) UnprotectMediaByID(hs).register(http_server) ListMediaInRoom(hs).register(http_server) DeleteMediaByID(hs).register(http_server) DeleteMediaByDateSize(hs).register(http_server) UserMediaRestServlet(hs).register(http_server)