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96 lines
3.3 KiB
Python
96 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2018 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 twisted.internet import defer
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from synapse.api.errors import SynapseError
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from synapse.config import ConfigError
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logger = logging.getLogger(__name__)
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class ConsentServerNotices(object):
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"""Keeps track of whether we need to send users server_notices about
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privacy policy consent, and sends one if we do.
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"""
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def __init__(self, hs):
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"""
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Args:
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hs (synapse.server.HomeServer):
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"""
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self._server_notices_manager = hs.get_server_notices_manager()
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self._store = hs.get_datastore()
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self._users_in_progress = set()
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self._current_consent_version = hs.config.user_consent_version
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self._server_notice_content = hs.config.user_consent_server_notice_content
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if self._server_notice_content is not None:
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if not self._server_notices_manager.is_enabled():
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raise ConfigError(
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"user_consent configuration requires server notices, but "
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"server notices are not enabled.",
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)
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if 'body' not in self._server_notice_content:
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raise ConfigError(
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"user_consent server_notice_consent must contain a 'body' "
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"key.",
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)
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@defer.inlineCallbacks
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def maybe_send_server_notice_to_user(self, user_id):
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"""Check if we need to send a notice to this user, and does so if so
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Args:
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user_id (str): user to check
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Returns:
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Deferred
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"""
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if self._server_notice_content is None:
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# not enabled
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return
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# make sure we don't send two messages to the same user at once
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if user_id in self._users_in_progress:
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return
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self._users_in_progress.add(user_id)
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try:
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u = yield self._store.get_user_by_id(user_id)
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if u["consent_version"] == self._current_consent_version:
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# user has already consented
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return
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if u["consent_server_notice_sent"] == self._current_consent_version:
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# we've already sent a notice to the user
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return
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# need to send a message
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try:
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yield self._server_notices_manager.send_notice(
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user_id, self._server_notice_content,
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)
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yield self._store.user_set_consent_server_notice_sent(
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user_id, self._current_consent_version,
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)
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except SynapseError as e:
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logger.error("Error sending server notice about user consent: %s", e)
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finally:
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self._users_in_progress.remove(user_id)
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