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#!/usr/bin/python3
import os
import subprocess
import confparser
import imapclient
import contextlib
import backports.ssl
import socket
def conf_boolean_postprocess(src):
src = src.lower().strip()
if src == 'true' or src == 'on' or src == '1':
return True
return False
def conf_postprocess(conf):
d = {
'imap.tls': conf_boolean_postprocess,
'imap.start_tls': conf_boolean_postprocess,
'imap.tls_nocheck_hostname': conf_boolean_postprocess,
'imap.tls_nocheck_ca': conf_boolean_postprocess,
}
return {key: d[key](value) if key in d else value
for key, value in conf.items()}
@contextlib.contextmanager
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):
# don't check if certificate hostname doesn't match target hostname
ssl_context.check_hostname = False
if conf.get('imap.tls_nocheck_ca', False):
# 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),
ssl_context=ssl_context)
if conf.get('imap.start_tls', False):
connection.start_tls(ssl_context=ssl_context)
print('connection succeed')
connection.login(username=conf.get('imap.username'), password=password)
print('successfuly logged')
# TODO: replace shutdown by logouts when it will not timeout through ssl
try:
yield connection
#connection.logout()
except (connection.AbortError, socket.error, socket.timeout,
backports.ssl.SSLError, backports.ssl.CertificateError):
raise
else:
pass
#connection.logout()
finally:
connection.shutdown()
def main():
confpath = os.path.expanduser('~/temp/conf.cfg')
conf = conf_postprocess(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)
with connect_to_imap(conf, password) as connection:
print('selecting folder')
connection.select_folder(conf.get('imap.mailbox'))
print('entering idle mode')
connection.idle()
print('waiting for an event')
while True:
try:
result = connection.idle_check(timeout=10)
except KeyboardInterrupt:
break
print('result:', result)
print('end of connection')
main() # dev mode for now
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