auto-update-no-ip

#!/usr/bin/env python
# coding: UTF-8

import sys
import netrc
import os.path

import no_ip_updater as noip
import no_ip_updater.getip as getip


'''
This script automatically gets No-IP login from netrc file and updates the
specified hosts with the current IP.

Add these lines to your ~/.netrc file, replacing <username> and <password>
accordingly:

machine no-ip.com
  login <username>
  password <password>

Add each host to a ".no-ip-hosts" file inside your home directory, or hardcode
the "hosts" variable inside this script.

'''


# Hosts to update #

# hosts = [ "example.no-ip.org" ]
hosts = []


HOSTS_FILE = "$HOME/.no-ip-hosts"




if __name__ == "__main__":

    HOST = "no-ip.com"

    try:
        cred = netrc.netrc().authenticators( HOST )
    except IOError as err:
        print("Can't access .netrc file")
        print(err)
        sys.exit(1)
    else:
        if cred is not None:
            username, account, password = cred
        else:
            print("No login for \"{}\" host in .netrc file".format(HOST))
            sys.exit(1)

    fileName = os.path.expandvars(HOSTS_FILE)
    try:
        with open(fileName, 'r') as f_in:
            lines = (line.strip() for line in f_in) # All lines including the blank ones
            lines = (line for line in lines if line) # Non-blank lines
    except IOError as err:
        if not hosts:
            print("Can't access \"{}\" file".format(HOSTS_FILE))
            print(err)
            sys.exit(1)
        else:
            print("WARNING: Can't access \"{}\" file")
    else:
        if lines:
            hosts = lines
        elif not hosts:
            print("No host found in \"{}\"".format(HOSTS_FILE))
            sys.exit(1)


    print("\n=== No-IP Updater ===")
    print("Detecting current IP...")

    try:
        ip = getip.get_ip()
    except:
        print("[ERROR] Can't detect current IP.\n")
    else:
        noip.updateHosts(username, password, ip, hosts)

    print("=====================\n")