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63 lines
2.3 KiB
63 lines
2.3 KiB
13 years ago
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# Validates IP addresses
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#
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# @author Kim Nørgaard <jasen@jasen.dk>
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class IpValidator < ActiveModel::EachValidator
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# @param [Hash] options Options for validation
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# @option options [Symbol] :ip_type (:any) The IP address type (:any, :v4 or :v6)
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# @see ActiveModel::EachValidator#new
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def initialize(options)
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options[:ip_type] ||= :any
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super
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end
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def validate_each(record, attribute, value)
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case options[:ip_type]
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when :v4
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record.errors.add(attribute, options[:message] || :ipv4) unless ipv4?(value)
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when :v6
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record.errors.add(attribute, options[:message] || :ipv6) unless ipv6?(value)
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else
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record.errors.add(attribute, options[:message] || :ip) unless ip?(value)
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end
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end
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private
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# Validates IPv4 address
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# @param [String] address the ipv4 address
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# @return [Boolean] the validation result
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def ipv4?(address)
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address =~ /^
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(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}
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(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)
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$/x
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end
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# Validates IPv6 address
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# @param [String] address the ipv6 address
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# @return [Boolean] the validation result
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def ipv6?(address)
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address =~ /^
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(
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(([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4})
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|(([0-9A-Fa-f]{1,4}:){6}:[0-9A-Fa-f]{1,4})
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|(([0-9A-Fa-f]{1,4}:){5}:([0-9A-Fa-f]{1,4}:)?[0-9A-Fa-f]{1,4})
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|(([0-9A-Fa-f]{1,4}:){4}:([0-9A-Fa-f]{1,4}:){0,2}[0-9A-Fa-f]{1,4})
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|(([0-9A-Fa-f]{1,4}:){3}:([0-9A-Fa-f]{1,4}:){0,3}[0-9A-Fa-f]{1,4})
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|(([0-9A-Fa-f]{1,4}:){2}:([0-9A-Fa-f]{1,4}:){0,4}[0-9A-Fa-f]{1,4})
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|(([0-9A-Fa-f]{1,4}:){6}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))
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|(([0-9A-Fa-f]{1,4}:){0,5}:((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))
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|(::([0-9A-Fa-f]{1,4}:){0,5}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))
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|([0-9A-Fa-f]{1,4}::([0-9A-Fa-f]{1,4}:){0,5}[0-9A-Fa-f]{1,4})
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|(::([0-9A-Fa-f]{1,4}:){0,6}[0-9A-Fa-f]{1,4})
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|(([0-9A-Fa-f]{1,4}:){1,7}:)
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)$/x
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end
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# Validates IP (v4 or v6) address
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# @param [String] address the ip address
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# @return [Boolean] the validation result
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def ip?(address)
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ipv4?(address) || ipv6?(address)
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end
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end
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