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- # Copyright 2015, 2016 OpenMarket 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 typing import TYPE_CHECKING, Tuple
-
- from synapse.api.errors import AuthError, NotFoundError, StoreError, SynapseError
- from synapse.http.server import HttpServer
- from synapse.http.servlet import RestServlet, parse_json_object_from_request
- from synapse.http.site import SynapseRequest
- from synapse.types import JsonDict, UserID
-
- from ._base import client_patterns, set_timeline_upper_limit
-
- if TYPE_CHECKING:
- from synapse.server import HomeServer
-
- logger = logging.getLogger(__name__)
-
-
- class GetFilterRestServlet(RestServlet):
- PATTERNS = client_patterns("/user/(?P<user_id>[^/]*)/filter/(?P<filter_id>[^/]*)")
-
- def __init__(self, hs: "HomeServer"):
- super().__init__()
- self.hs = hs
- self.auth = hs.get_auth()
- self.filtering = hs.get_filtering()
-
- async def on_GET(
- self, request: SynapseRequest, user_id: str, filter_id: str
- ) -> Tuple[int, JsonDict]:
- target_user = UserID.from_string(user_id)
- requester = await self.auth.get_user_by_req(request)
-
- if target_user != requester.user:
- raise AuthError(403, "Cannot get filters for other users")
-
- if not self.hs.is_mine(target_user):
- raise AuthError(403, "Can only get filters for local users")
-
- try:
- filter_id_int = int(filter_id)
- except Exception:
- raise SynapseError(400, "Invalid filter_id")
-
- try:
- filter_collection = await self.filtering.get_user_filter(
- user_localpart=target_user.localpart, filter_id=filter_id_int
- )
- except StoreError as e:
- if e.code != 404:
- raise
- raise NotFoundError("No such filter")
-
- return 200, filter_collection.get_filter_json()
-
-
- class CreateFilterRestServlet(RestServlet):
- PATTERNS = client_patterns("/user/(?P<user_id>[^/]*)/filter")
-
- def __init__(self, hs: "HomeServer"):
- super().__init__()
- self.hs = hs
- self.auth = hs.get_auth()
- self.filtering = hs.get_filtering()
-
- async def on_POST(
- self, request: SynapseRequest, user_id: str
- ) -> Tuple[int, JsonDict]:
- target_user = UserID.from_string(user_id)
- requester = await self.auth.get_user_by_req(request)
-
- if target_user != requester.user:
- raise AuthError(403, "Cannot create filters for other users")
-
- if not self.hs.is_mine(target_user):
- raise AuthError(403, "Can only create filters for local users")
-
- content = parse_json_object_from_request(request)
- set_timeline_upper_limit(content, self.hs.config.server.filter_timeline_limit)
-
- filter_id = await self.filtering.add_user_filter(
- user_localpart=target_user.localpart, user_filter=content
- )
-
- return 200, {"filter_id": str(filter_id)}
-
-
- def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None:
- GetFilterRestServlet(hs).register(http_server)
- CreateFilterRestServlet(hs).register(http_server)
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