45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
# Copyright 2017 Vector Creations 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 phonenumbers
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from synapse.api.errors import SynapseError
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def phone_number_to_msisdn(country: str, number: str) -> str:
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"""
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Takes an ISO-3166-1 2 letter country code and phone number and
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returns an msisdn representing the canonical version of that
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phone number.
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As an example, if `country` is "GB" and `number` is "7470674927", this
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function will return "447470674927".
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Args:
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country: ISO-3166-1 2 letter country code
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number: Phone number in a national or international format
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Returns:
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The canonical form of the phone number, as an msisdn.
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Raises:
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SynapseError if the number could not be parsed.
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"""
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try:
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phoneNumber = phonenumbers.parse(number, country)
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except phonenumbers.NumberParseException:
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raise SynapseError(400, "Unable to parse phone number")
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return phonenumbers.format_number(phoneNumber, phonenumbers.PhoneNumberFormat.E164)[
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1:
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]
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