synapse-old/synapse/util/threepids.py

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# -*- coding: utf-8 -*-
# Copyright 2018 New Vector 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
import re
logger = logging.getLogger(__name__)
def check_3pid_allowed(hs, medium, address):
"""Checks whether a given format of 3PID is allowed to be used on this HS
Args:
hs (synapse.server.HomeServer): server
medium (str): 3pid medium - e.g. email, msisdn
address (str): address within that medium (e.g. "wotan@matrix.org")
msisdns need to first have been canonicalised
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Returns:
bool: whether the 3PID medium/address is allowed to be added to this HS
"""
if hs.config.allowed_local_3pids:
for constraint in hs.config.allowed_local_3pids:
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logger.debug(
"Checking 3PID %s (%s) against %s (%s)",
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address,
medium,
constraint["pattern"],
constraint["medium"],
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)
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if medium == constraint["medium"] and re.match(
constraint["pattern"], address
):
return True
else:
return True
return False