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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 synapse.api.errors import AuthError, NotFoundError, StoreError, SynapseError
from synapse.http.servlet import RestServlet, parse_json_object_from_request
from synapse.types import UserID
from ._base import client_patterns, set_timeline_upper_limit
logger = logging.getLogger(__name__)
class GetFilterRestServlet(RestServlet):
PATTERNS = client_patterns("/user/(?P<user_id>[^/]*)/filter/(?P<filter_id>[^/]*)")
def __init__(self, hs):
super().__init__()
self.hs = hs
self.auth = hs.get_auth()
self.filtering = hs.get_filtering()
async def on_GET(self, request, user_id, filter_id):
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(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
)
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):
super().__init__()
self.hs = hs
self.auth = hs.get_auth()
self.filtering = hs.get_filtering()
async def on_POST(self, request, user_id):
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.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, http_server):
GetFilterRestServlet(hs).register(http_server)
CreateFilterRestServlet(hs).register(http_server)
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