#!/usr/bin/env python

import sys
import pexpect

# Read variables of first and second given argument
user = str(sys.argv[1])
passwordfile = str(sys.argv[2])

# Read content of passwordfile and put as variable "password"
with open (passwordfile, "r") as myfile:
    password=myfile.read().replace('\n', '')

# Define function
def _vchangepw(user, password):
    changepw = pexpect.spawn(
        command='vpasswd',  # actual shell command which should be started
        args=[user]   # necessary argument
    )

    changepw.expect('password:')
    changepw.sendline(password)

    changepw.expect('verification:')
    changepw.sendline(password)

    changepw.expect(pexpect.EOF)
    changepw.close()
    
    # Error handling
    if changepw.exitstatus != 0:
        last_line = filter(None, changepw.before.split('\r\n'))[-1]
        problem = last_line.split(':')[-1]
        print "ERROR! Code: " + str(changepw.exitstatus)
        print "Last error: " + str(problem)
    else:
        print "SUCCESS!"
        print "The password of user " + str(user) + " has been changed to: " + str(password)

# Start function
_vchangepw(user, password)