Class: PassiveDNS::Provider::BFK

Inherits:
PassiveDNS::PassiveDB show all
Defined in:
lib/passivedns/client/provider/bfk.rb

Overview

Queries BFK.de’s passive DNS database

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ BFK

Options

Example Instantiation

options = {
  :debug => true,
  "URL" => "http://www.bfk.de/bfk_dnslogger.html?query="
}

PassiveDNS::Provider::BFK.new(options)



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# File 'lib/passivedns/client/provider/bfk.rb', line 37

def initialize(options={})
  @debug = options[:debug] || false
  @timeout = options[:timeout] || 20
  @base = options["URL"] || "http://www.bfk.de/bfk_dnslogger.html?query="
  raise "Due to the EU GDPR policy, this service has been shut down until further notice."
end

Instance Attribute Details

#debug ⇒ Object

:debug enables verbose logging to standard output



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# File 'lib/passivedns/client/provider/bfk.rb', line 23

def debug
  @debug
end

Class Method Details

.config_section_name ⇒ Object

Sets the configuration section name to “bfk”



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# File 'lib/passivedns/client/provider/bfk.rb', line 14

def self.config_section_name
  "bfk"
end

.name ⇒ Object

Sets the modules self-reported name to “BFK.de”



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# File 'lib/passivedns/client/provider/bfk.rb', line 10

def self.name
  "BFK.de"
end

.option_letter ⇒ Object

Sets the command line database argument to “b”



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# File 'lib/passivedns/client/provider/bfk.rb', line 18

def self.option_letter
  "b"
end

Instance Method Details

#lookup(label, limit = nil) ⇒ Object

Takes a label (either a domain or an IP address) and returns an array of PassiveDNS::PDNSResult instances with the answers to the query



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# File 'lib/passivedns/client/provider/bfk.rb', line 46

def lookup(label, limit=nil)  
  $stderr.puts "DEBUG: #{self.class.name}.lookup(#{label})" if @debug
  Timeout::timeout(@timeout) {
    t1 = Time.now
    open(
      @base+label,
      "User-Agent" => "Ruby/#{RUBY_VERSION} passivedns-client rubygem v#{PassiveDNS::Client::VERSION}"
    ) do |f|
      t2 = Time.now
      recs = parse(f.read,t2-t1)
      if limit
        recs[0,limit]
      else
        recs
      end
    end
  }
rescue Timeout::Error => e
  $stderr.puts "#{self.class.name} lookup timed out: #{label}"      
end