# Copyright 2022 The Matrix.org Foundation C.I.C. # # 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. from typing import TYPE_CHECKING from synapse.api.errors import StoreError from synapse.http.server import DirectServeHtmlResource, respond_with_html_bytes from synapse.http.servlet import parse_string from synapse.http.site import SynapseRequest if TYPE_CHECKING: from synapse.server import HomeServer class UnsubscribeResource(DirectServeHtmlResource): """ To allow pusher to be delete by clicking a link (ie. GET request) """ SUCCESS_HTML = b"You have been unsubscribed" def __init__(self, hs: "HomeServer"): super().__init__() self.notifier = hs.get_notifier() self.auth = hs.get_auth() self.pusher_pool = hs.get_pusherpool() self.macaroon_generator = hs.get_macaroon_generator() async def _async_render_GET(self, request: SynapseRequest) -> None: """ Handle a user opening an unsubscribe link in the browser, either via an HTML/Text email or via the List-Unsubscribe header. """ token = parse_string(request, "access_token", required=True) app_id = parse_string(request, "app_id", required=True) pushkey = parse_string(request, "pushkey", required=True) user_id = self.macaroon_generator.verify_delete_pusher_token( token, app_id, pushkey ) try: await self.pusher_pool.remove_pusher( app_id=app_id, pushkey=pushkey, user_id=user_id ) except StoreError as se: if se.code != 404: # This is fine: they're already unsubscribed raise self.notifier.on_new_replication_data() respond_with_html_bytes( request, 200, UnsubscribeResource.SUCCESS_HTML, ) async def _async_render_POST(self, request: SynapseRequest) -> None: """ Handle a mail user agent POSTing to the unsubscribe URL via the List-Unsubscribe & List-Unsubscribe-Post headers. """ # TODO Assert that the body has a single field # Assert the body has form encoded key/value pair of # List-Unsubscribe=One-Click. await self._async_render_GET(request)