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import os
import requests
from .certs import which_bundle
from leap.mail.smtp import setup_smtp_gateway
import random
class LeapSmtp(object):
SMTP_PORT = 2014
def __init__(self, provider, keymanager=None, leap_srp_session=None):
self._provider = provider
self._keymanager = keymanager
self._srp_session = leap_srp_session
self._hostname, self._port = self._discover_smtp_server()
self._smtp_port = None
self._smtp_service = None
self._twisted_port = 10000 + int(random.random() * 5000)
def smtp_info(self):
return ('localhost', LeapSmtp.SMTP_PORT)
def _discover_smtp_server(self):
json_data = self._provider.fetch_smtp_json()
hosts = json_data['hosts']
hostname = hosts.keys()[0]
host = hosts[hostname]
hostname = host['hostname']
port = host['port']
return hostname, port
def _download_client_certificates(self):
cert_path = self._client_cert_path()
if not os.path.exists(os.path.dirname(cert_path)):
os.makedirs(os.path.dirname(cert_path))
session = requests.session()
cert_url = '%s/%s/cert' % (self._provider.api_uri, self._provider.api_version)
cookies = {"_session_id": self._srp_session.session_id}
response = requests.get(cert_url, verify=which_bundle(self._provider), cookies=cookies, timeout=self._provider.config.timeout_in_s)
response.raise_for_status()
client_cert = response.content
with open(cert_path, 'w') as f:
f.write(client_cert)
def _client_cert_path(self):
return os.path.join(
self._provider.config.leap_home,
"providers",
self._provider.domain,
"keys", "client", "smtp.pem")
def start(self):
self._download_client_certificates()
cert_path = self._client_cert_path()
email = '%s@%s' % (self._srp_session.user_name, self._provider.domain)
self._smtp_service, self._smtp_port = setup_smtp_gateway(
port=(self._twisted_port),
userid=email,
keymanager=self._keymanager,
smtp_host=self._hostname.encode('UTF-8'),
smtp_port=self._port,
smtp_cert=cert_path,
smtp_key=cert_path,
encrypted_only=False
)
def stop(self):
if self._smtp_service is not None:
self._smtp_port.stopListening()
self._smtp_service.doStop()
self._smtp_port = None
self._smtp_service = None
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