Bulk Password Generator & Mailer

csv_pass_mailer.py

"""Utility to send passwords to a list of addresses in a CSV file"""

import os
import sys
import csv
import string
import smtplib
from email.mime.text import MIMEText
from random import choice, randint, seed

# Variables
SMTP_HOST = 'localhost'
SMTP_USER = ''
SMTP_PASSWD = ''
FROM_ADDRESS = ''
SUBJECT = ''

def generate_random_password(length, choices=string.letters + string.digits):
	"""Create a random password"""
	seed(os.urandom(64))
	return ''.join([choice(choices) for i in range(length)]).upper()

def send_bulk_passwords(csv_file, email_file, length=randint(6, 8)):
	mail_csv_reader = csv.reader(open(csv_file, 'rb'))
	email_message = open(email_file, 'r').read()
	counter = 0

	for row in mail_csv_reader:
		email = row[0]
		name = row[1] if len(row) > 1 else ''
		passwd = generate_random_password(length)

		msg = MIMEText(email_message.format(
			email=email,
			name=name,
			passwd=passwd
		))

		msg['Subject'] = SUBJECT
		msg['From'] = FROM_ADDRESS
		msg['To'] = email

		s = smtplib.SMTP(SMTP_HOST)

		if SMTP_USER and SMTP_PASSWD:
			s.login(SMTP_USER, SMTP_PASSWD)

		s.sendmail(FROM_ADDRESS, [email], msg.as_string())
		s.quit()

		counter += 1

	print 'Sent messages: %s' % counter


if __name__ == '__main__':
	send_bulk_passwords(sys.argv[1], sys.argv[2])