49 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			49 lines
		
	
	
		
			1.6 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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| 
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| import logging
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| import re
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| 
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| logger = logging.getLogger(__name__)
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| 
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| 
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| def check_3pid_allowed(hs, medium, address):
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|     """Checks whether a given format of 3PID is allowed to be used on this HS
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| 
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|     Args:
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|         hs (synapse.server.HomeServer): server
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|         medium (str): 3pid medium - e.g. email, msisdn
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|         address (str): address within that medium (e.g. "wotan@matrix.org")
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|             msisdns need to first have been canonicalised
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|     Returns:
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|         bool: whether the 3PID medium/address is allowed to be added to this HS
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|     """
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| 
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|     if hs.config.allowed_local_3pids:
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|         for constraint in hs.config.allowed_local_3pids:
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|             logger.debug(
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|                 "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 (
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|                 medium == constraint['medium'] and
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|                 re.match(constraint['pattern'], address)
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|             ):
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|                 return True
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|     else:
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|         return True
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| 
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|     return False
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