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# SPDX-FileCopyrightText: 2020 IN COMMON Collective <collective@incommon.cc>
#
# SPDX-License-Identifier: AGPL-3.0-or-later
# frozen_string_literal: true
# = Email Validator =
#
# In order to be considered valid, value must be:
#
# - a valid Email URI
# - parsable as an URI
# - have a hostname
# - have a valid public TLD
#
class EmailValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
unless valid_email_address?(value)
record.errors[attribute] << (options[:message] || 'is an invalid email address')
end
end
private
def valid_email_address?(value)
uri = URI.parse("mailto:#{value}")
uri.is_a?(URI::MailTo) &&
uri.to == value &&
IANA::TLD.valid?(value.split('@', 2).last.split('.').compact.last)
rescue URI::InvalidURIError, URI::InvalidComponentError
false
end
end
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