generate-welcome-emails

#!/usr/bin/python3

from imaplib import IMAP4_SSL
import sys
from datetime import datetime, timezone
from email import message
import hashlib

RFC2822_FMT = '%a, %d %b %Y %T %z'

accounts = sys.stdin.readlines()

def welcome_msg(u):
    acct = u.split('@')[0]
    acct = acct[0].upper() + acct[1:]
    ret = message.Message()
    ret['From'] = 'Autocrypt IFF 2018 <venue@librechat.net>'
    ret['To'] = '%s <%s>'%(acct, u)
    ret['Subject'] = 'Welcome to IFF 2018 Autocrypt session'
    ret['Date'] = datetime.now().strftime(RFC2822_FMT)
    ret.add_header('Content-Type', 'text/plain', charset='utf-8')
    ret.set_payload('''hey there %s--

Welcome to the Autocrypt session at the Internet Freedom Festival
2018!

We hope you enjoy this demo session.  If you reply to me here, it
should show up on the screen.

You might also be interested in chatting with our demonstration
Autocrypt-enabled bot:

   * iff-bot@sequoia-pgp.org

You might also want to try exchanging encrypted e-mails with other
people near you.  Help your neighbor get set up!

much <3 from Autocrypt developers!
'''%(acct,))
    ret['Message-Id'] = hashlib.sha1(ret.as_bytes()).hexdigest() + '@iff2018.librechat.net'
    return ret



for line in accounts:
    (u,p) = line.strip().split(" ")
    now = datetime.now(timezone.utc)
    with IMAP4_SSL("w017f238.kasserver.com") as M:
        if M.login(u,p):
            M.append('INBOX', None, now, welcome_msg(u).as_bytes())
            print("welcomed", u)