#!/usr/bin/python3

import os
import subprocess
import confparser
import imapclient

import backports.ssl

def connect_to_imap(conf, password):

    cafile = conf.get('imap.tls_ca', None)

    if cafile:
        cafile = os.path.expanduser(cafile)

    ssl_context = imapclient.create_default_context(cafile=cafile)

    if conf.get('imap.tls_nocheck_hostname', 'false').lower() == 'true':
        # don't check if certificate hostname doesn't match target hostname
        ssl_context.check_hostname = False

    if conf.get('imap.tls_nocheck_ca', 'false').lower() == 'true':
        # don't check if the certificate is trusted by a certificate authority
        ssl_context.verify_mode = backports.ssl.CERT_NONE

    connection = imapclient.IMAPClient(host=conf.get('imap.server'),
            ssl=conf.get('imap.tls', 'true').lower() == 'true',
            ssl_context=ssl_context)
    if conf.get('imap.start_tls', 'false').lower() == 'true':
        connection.start_tls(ssl_context=ssl_context)
    print('connection succeed')
    connection.login(username=conf.get('imap.username'), password=password)
    print('successfuly logged')
    return connection

def main():
    confpath = os.path.expanduser('~') + '/temp/conf.cfg'
    conf = confparser.read_conf(confpath)
    print('Read conf:', conf)
    password_command = conf.get('imap.password_command', None)
    if password_command:
        password = subprocess.check_output(password_command, shell=True)
        password = password.rstrip().decode('utf8')
        print('got pasword:', password)
    connection = connect_to_imap(conf, password)



main() # dev mode for now