Module: Radioactive::AddressCheck

Defined in:
lib/radioactive/address_check.rb

Constant Summary collapse

DEFAULT_PRIVATE_RANGES = 
%w[
  0.0.0.0/8
  10.0.0.0/8
  100.64.0.0/10
  127.0.0.0/8
  169.254.0.0/16
  172.16.0.0/12
  192.0.0.0/24
  192.0.2.0/24
  192.168.0.0/16
  198.18.0.0/15
  198.51.100.0/24
  203.0.113.0/24
  224.0.0.0/4
  240.0.0.0/4
  255.255.255.255/32
  ::/128
  ::1/128
  64:ff9b::/96
  100::/64
  2001::/32
  2001:db8::/32
  fc00::/7
  fe80::/10
  ff00::/8
].map { |cidr| IPAddr.new(cidr) }.freeze

Class Method Summary collapse

Class Method Details

.forbidden?(ip, ranges = DEFAULT_PRIVATE_RANGES) ⇒ Boolean

Parameters:

  • ip (IPAddr)
  • ranges (Array<IPAddr>) (defaults to: DEFAULT_PRIVATE_RANGES)

Returns:

  • (Boolean) 


38
39
40
41
 
# File 'lib/radioactive/address_check.rb', line 38

def forbidden?(ip, ranges = DEFAULT_PRIVATE_RANGES)
  candidate = ip.ipv4_mapped? ? ip.native : ip
  ranges.any? { |r| r.include?(candidate) }
end

.resolve(host, resolver) ⇒ Array<IPAddr>

Parameters:

  • host (String)
  • resolver (#getaddresses)

Returns:

  • (Array<IPAddr>) 


46
47
48
49
50
51
52
53
54
55
56
57
 
# File 'lib/radioactive/address_check.rb', line 46

def resolve(host, resolver)
  begin
    ip = IPAddr.new(host)
    return [ip]
  rescue IPAddr::Error
  end

  addresses = Array(resolver.getaddresses(host))
  addresses.map { |a| IPAddr.new(a) }
rescue IPAddr::Error => e
  raise AddressError, "could not parse resolved address: #{e.message}"
end