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ipv6_validator.rb
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Wed, Jun 10, 9:02 PM

ipv6_validator.rb
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require 'ipaddr'
require 'socket'
class Ipv6Validator < ActiveModel::EachValidator
def valid_v6?(addr)
return false if addr['/'] # IPAddr accepts addr/mask format
return false if addr['[']
return false if addr[']']
IPAddr.new(addr, Socket::AF_INET6)
true
rescue IPAddr::AddressFamilyError, IPAddr::InvalidAddressError
false
end
def validate_each(record, attribute, value)
return if valid_v6?(value)
record.errors[attribute] << 'is not a valid IPv6 address'
end
end

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