#!/usr/bin/python
#
# arinnetlist.py - Query ARIN for netlists
#
# (c) 2017 Todd Shadburn <tshadburn@opencomputingsolutions.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#

import os
import sys
import urllib2
import json

if len(sys.argv) < 2:
	print 'Usage arinnetlist.py orgid'
	sys.exit(2)

# Lookup the netblocks for the ORGID
req = urllib2.Request('https://whois.arin.net/rest/org/AT-88-Z/nets', None, {'Accept': 'application/json'})
res = urllib2.urlopen(req)
data = json.loads(res.read())
res.close()
netlist =  data['nets']['netRef']

# Lookup the CIDR for each netblock
for i in netlist:
	req = urllib2.Request(i['$'], None, {'Accept': 'application/json'})
	res = urllib2.urlopen(req)
	data = json.loads(res.read())
	res.close()
	netblock = data['net']['netBlocks']['netBlock']
	if 'startAddress' in netblock and 'cidrLength' in netblock:
		print '%s/%s' % (netblock['startAddress']['$'], netblock['cidrLength']['$'])
  
sys.exit(0)