Module: IANA::TLD

Defined in:
lib/iana/tld.rb

Class Method Summary collapse

Class Method Details

.load(pathname) ⇒ Object

load IANA TLD list from flat file: data.iana.org/TLD/tlds-alpha-by-domain.txt

Raises:

  • (ArgumentError) 


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# File 'lib/iana/tld.rb', line 10

def self.load(pathname)
  raise ArgumentError, 'nil pathname' if pathname.nil?
  raise ArgumentError, 'invalid pathname class' if pathname.class != String
  raise ArgumentError, 'empty pathname' if pathname.empty?

  # TODO: better error checking for files with incorrect content

  tlds = []
  updated = nil

  begin
    f = File.new(pathname, 'r')
    while (line = f.gets)
      line.chomp!

      if line =~ /^# Version \d{10}, Last Updated ([\w\W\d\s]*)$/
        # extract update stamp
        updated = $1
        version,gunk= line.split(',')
        version.sub!(/^# /, '')
        updated.strip!
      else
        tlds << line.downcase!
      end
    end
  ensure
    f.close if !f.nil?
  end

  return tlds, updated, version
end

.tld?(dn) ⇒ Boolean

is specified domain name a TLD?

Returns:

  • (Boolean)

Raises:

  • (ArgumentError) 


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# File 'lib/iana/tld.rb', line 43

def self.tld?(dn)
  raise ArgumentError, 'nil dn' if dn.nil?
  raise ArgumentError, 'invalid dn class' if dn.class != String
  raise ArgumentError, 'empty dn' if dn.empty?

  return IANA_TLD.include?(dn) ? true : false
end