#! /usr/bin/python

# ZyXEL DSLAM Configuration Backup
# (c) 2013 by niston cloud
# http://niston.wordpress.com

# Released under a MIT License

import os
import csv
import subprocess

dslamUser = "username"
dslamPass = "password"

with open('dslams.csv', 'rb') as csvfile:
        x = csv.reader(csvfile, delimiter=',', quotechar='|')
        for row in x:
                dslam = list(row)
                dslamName = dslam[0].strip()
                dslamAddr = dslam[1].strip()
                print 'DSLAM Name: ', dslamName
                print 'DSLAM Addr: ', dslamAddr
                # authorize with dslam
                print 'Authenticating with DSLAM....'
                cmdargs = "--auth-no-challenge -t 5 --http-user=" + dslamUser + " --http-password=" + dslamPass + " http://" + dslamAddr + "/config-0_.dat -O /dev/null"
                # loop until authenticated (due to a flaw in zyxel OS, several attempts may be required)
                data = ""
                while not ('200 OK' in data):
                        task = subprocess.Popen("wget " + cmdargs, shell=True, stdout=None, stderr=subprocess.PIPE)
                        # wait for auth task to finish (ATTN: wget logs to STDERR!)
                        dummy, data = task.communicate()
                # download config file
                os.system("wget --auth-no-challenge -t 5 --http-user=" + dslamUser + " --http-password=" + dslamPass + " -O '" + dslamName + "_'`date +%Y%m%d%H%M`'.dat' http://" + dslamAddr + "/config-0_.dat")
                print '-----------------------'
                print ''