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# -*- coding: utf-8 -*-
# imapcontroller.py
# Copyright (C) 2013 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
IMAP service controller.
"""
from leap.bitmask.logs.utils import get_logger
from leap.bitmask.services.mail import imap
logger = get_logger()
class IMAPController(object):
"""
IMAP Controller.
"""
def __init__(self, soledad, keymanager):
"""
Initialize IMAP variables.
:param soledad: a transparent proxy that eventually will point to a
Soledad Instance.
:type soledad: zope.proxy.ProxyBase
:param keymanager: a transparent proxy that eventually will point to a
Keymanager Instance.
:type keymanager: zope.proxy.ProxyBase
"""
self._soledad = soledad
self._keymanager = keymanager
# XXX: this should live in its own controller
# or, better, just be managed by a composite Mail Service in
# leap.mail.
self.imap_port = None
self.imap_factory = None
self.incoming_mail_service = None
def start_imap_service(self, userid, offline=False):
"""
Start IMAP service.
:param userid: user id, in the form "user@provider"
:type userid: str
:param offline: whether imap should start in offline mode or not.
:type offline: bool
"""
logger.debug('Starting imap service')
soledad_sessions = {userid: self._soledad}
self.imap_port, self.imap_factory = imap.start_imap_service(
soledad_sessions)
def start_and_assign_incoming_service(incoming_mail):
# this returns a deferred that will be called when the looping call
# is stopped, we could add any shutdown/cleanup callback to that
# deferred, but unused by the moment.
incoming_mail.startService()
self.incoming_mail_service = incoming_mail
return incoming_mail
if offline is False:
d = imap.start_incoming_mail_service(
self._keymanager, self._soledad,
userid)
d.addCallback(start_and_assign_incoming_service)
d.addErrback(lambda f: logger.error(f.printTraceback()))
def stop_imap_service(self):
"""
Stop IMAP service (fetcher, factory and port).
"""
if self.incoming_mail_service is not None:
# Stop the loop call in the fetcher
# XXX BUG -- the deletion of the reference should be made
# after stopService() triggers its deferred (ie, cleanup has been
# made)
self.incoming_mail_service.stopService()
self.incoming_mail_service = None
if self.imap_port is not None:
# Stop listening on the IMAP port
self.imap_port.stopListening()
# Stop the protocol
self.imap_factory.doStop()
def fetch_incoming_mail(self):
"""
Fetch incoming mail.
"""
if self.incoming_mail_service is not None:
logger.debug('Client connected, fetching mail...')
self.incoming_mail_service.fetch()
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