Module: ValidatesIpFormatOf

Defined in:
lib/validates_ip_format_of.rb,
lib/validates_ip_format_of/version.rb

Overview

encoding: utf-8

Constant Summary collapse

IPv4_PART =

0-255

/\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]/
TWENTY_FOUR_BIT_BLOCK =

Blocks IPv4 10.0.0.0 - 10.255.255.255

/(?!10\.((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.?)){3})/
TWENTY_BIT_BLOCK =

Blocks IPv4 172.16.0.0 - 172.31.255.255

/(?!172\.(0?3[0-1]|0?2[0-9]|0?1[6-9])\.((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.?)){2})/
SIXTEEN_BIT_BLOCK =

Blocks IPv4 192.168.0.0 - 192.168.255.255

/(?!192\.168\.((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.?)){2})/
LOCALHOST_LOOPBACK =

Blocks IPv4 127.0.0.1 (which is also localhost)

/(?!127\.0\.0\.[0-8])/
ALL_ROUTES = 
/(?!0\.0\.0\.0)/
RFC_1918_IPS = 
%r{#{TWENTY_FOUR_BIT_BLOCK}#{TWENTY_BIT_BLOCK}#{SIXTEEN_BIT_BLOCK}}
REGEXP = 
%r{
  \A
  #{LOCALHOST_LOOPBACK}                                              # blocks 127.0.0.0/8
  #{ALL_ROUTES}                                                      # blocks 0.0.0.0
  #{RFC_1918_IPS}                                                    # blocks the use of RFC 1918 private network IPv4 addresses
  #{IPv4_PART}(\.#{IPv4_PART}){3}                                    # Allow IPv4
  \Z
}iux
DEFAULT_MESSAGE = 
'does not appear to be a valid IP Address'
VERSION = 
"1.0.3"

Instance Method Summary collapse

Instance Method Details

#validates_ip_format_of(*attr_names) ⇒ Object 



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# File 'lib/validates_ip_format_of.rb', line 33

def validates_ip_format_of(*attr_names)
  options = { :allow_nil => false,
              :allow_blank => false,
              :message => DEFAULT_MESSAGE,
              :with => REGEXP
  }
  options = options.merge(attr_names.pop) if attr_names.last.is_a?(Hash)
  attr_names.each do |attr_name|
    validates_format_of(attr_name, options)
  end
end