Class: RushButton::DashCapture

Inherits:
Object
  • Object
show all
Includes:
PacketFu
Defined in:
lib/rush_button/dash_capture.rb

Constant Summary collapse

REFER_URL = 
"https://api.macvendors.com/"
VENDOR_NAME = 
"Amazon Technologies Inc."

Instance Method Summary collapse

Constructor Details

#initialize(iface) ⇒ DashCapture

Returns a new instance of DashCapture.



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# File 'lib/rush_button/dash_capture.rb', line 11

def initialize iface
  @capture = Capture.new(iface: iface, filter: Protocol::ARP, promisc: true)
end

Instance Method Details

#capture ⇒ Object 



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# File 'lib/rush_button/dash_capture.rb', line 15

def capture
  not_amazons = []
  loop do
    packet = @capture.next
    unless packet
      sleep 1
      next
    end
    if ARPPacket.can_parse? packet
      src_mac = ARPPacket.parse(packet).eth_src_readable
      puts "captured MAC: #{src_mac}" if $DEBUG
      if not_amazons.include? src_mac
        next
      end
      vendor_mac = (src_mac.split(":"))[0..2].join(":")
      puts "refer to #{REFER_URL+vendor_mac}..." if $DEBUG 
      vendor_name = Net::HTTP.get URI.parse(REFER_URL+vendor_mac)
      puts "vendor name: #{vendor_name}" if $DEBUG
      if vendor_name == VENDOR_NAME
        puts "this is Amazon!" if $DEBUG
        return src_mac
      else
        not_amazons << src_mac
      end
    end
  end
end