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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
"""Contains the URL paths to prefix various aspects of the server with. """
import hmac
from hashlib import sha256
from urllib.parse import urlencode
from synapse.config import ConfigError
from synapse.config.homeserver import HomeServerConfig
SYNAPSE_CLIENT_API_PREFIX = "/_synapse/client"
CLIENT_API_PREFIX = "/_matrix/client"
FEDERATION_PREFIX = "/_matrix/federation"
FEDERATION_V1_PREFIX = FEDERATION_PREFIX + "/v1"
FEDERATION_V2_PREFIX = FEDERATION_PREFIX + "/v2"
FEDERATION_UNSTABLE_PREFIX = FEDERATION_PREFIX + "/unstable"
STATIC_PREFIX = "/_matrix/static"
SERVER_KEY_PREFIX = "/_matrix/key"
MEDIA_R0_PREFIX = "/_matrix/media/r0"
MEDIA_V3_PREFIX = "/_matrix/media/v3"
LEGACY_MEDIA_PREFIX = "/_matrix/media/v1"
class ConsentURIBuilder:
def __init__(self, hs_config: HomeServerConfig):
if hs_config.key.form_secret is None:
raise ConfigError("form_secret not set in config")
self._hmac_secret = hs_config.key.form_secret.encode("utf-8")
self._public_baseurl = hs_config.server.public_baseurl
def build_user_consent_uri(self, user_id: str) -> str:
"""Build a URI which we can give to the user to do their privacy
policy consent
Args:
user_id: mxid or username of user
Returns
The URI where the user can do consent
"""
mac = hmac.new(
key=self._hmac_secret, msg=user_id.encode("ascii"), digestmod=sha256
).hexdigest()
consent_uri = "%s_matrix/consent?%s" % (
self._public_baseurl,
urlencode({"u": user_id, "h": mac}),
)
return consent_uri
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