class RuboCop::Cop::Style::IpAddresses

ip_address = ENV[‘DEPLOYMENT_IP_ADDRESS’]
# good
ip_address = ‘127.59.241.29’
# bad
@example
other configuration.
a deployment if forgotten. Prefer setting IP addresses in ENV or
is deployed to a different server or environment, which may break
brittle. IP addresses are likely to need to be changed when code
This cop checks for hardcoded IP addresses, which can make code

def correct_style_detected; end

called from StringHelp.
Dummy implementation of method in ConfigurableEnforcedStyle that is 
def correct_style_detected; end

def could_be_ip?(str) 

def could_be_ip?(str)
  # If the string is too long, it can't be an IP
  return false if too_long?(str)
  # If the string doesn't start with a colon or hexadecimal char,
  # we know it's not an IP address
  starts_with_hex_or_colon?(str)
end

def offense?(node) 

def offense?(node)
  contents = node.source[1...-1]
  return false if contents.empty?
  return false if whitelist.include?(contents.downcase)
  # To try to avoid doing two regex checks on every string,
  # shortcut out if the string does not look like an IP address
  return false unless could_be_ip?(contents)
  contents =~ ::Resolv::IPv4::Regex || contents =~ ::Resolv::IPv6::Regex
end

def opposite_style_detected; end

called from StringHelp.
Dummy implementation of method in ConfigurableEnforcedStyle that is 
def opposite_style_detected; end

def starts_with_hex_or_colon?(str) 

def starts_with_hex_or_colon?(str)
  first_char = str[0].ord
  (48..58).cover?(first_char) || (65..70).cover?(first_char) ||
    (97..102).cover?(first_char)
end

def too_long?(str) 

def too_long?(str)
  str.size > IPV6_MAX_SIZE
end

def whitelist 

def whitelist
  whitelist = cop_config['Whitelist']
  Array(whitelist).map(&:downcase)
end