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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
- 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:
- logger.debug(
- "Checking 3PID %s (%s) against %s (%s)",
- address,
- medium,
- constraint["pattern"],
- constraint["medium"],
- )
- if medium == constraint["medium"] and re.match(
- constraint["pattern"], address
- ):
- return True
- else:
- return True
- return False
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