def __init__(self, options, maildir):
"""
Setup our dispatcher.. listen on a port we are supposed to accept
connections on. When something connects to it create an
IMAPClientHandler and pass it the socket.
Arguments:
- `options` : The options set on the command line
- `maildir` : The directory our mailspool and database are in
"""
self.options = options
asyncore.dispatcher.__init__(self)
self.log = logging.getLogger("%s.%s" %
(__name__, self.__class__.__name__))
# Do NOT create our socket if we are running in standalone mode
#
if self.options.standalone_mode is False:
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.set_reuse_addr()
self.bind(("127.0.0.1", 0))
self.address = self.socket.getsockname()
self.listen(BACKLOG)
self.maildir = maildir
self.mailbox = mailbox.MH(self.maildir, create=True)
# A global counter for the next available uid_vv is stored in the user
# server object. Mailboxes will get this value and increment it when
# they need a new uid_vv.
#
self.uid_vv = 0
# A handle to the sqlite3 database where we store our persistent
# information.
#
self.db = Database(maildir)
# A dict of the active mailboxes. An active mailbox is one that has an
# instance of an asimap.mbox.Mailbox class.
#
# We keep active mailboxes around when IMAP clients are poking them in
# some way. Active mailboxes are gotten rid of after a certain amount
# of time during which no client pokes it.
#
# The key is the mailbox name.
#
self.active_mailboxes = {}
# A dict of the active IMAP clients that are talking to us.
#
# The key is the port number of the attached client.
#
self.clients = {}
# There is a single message cache per user server instance.
#
self.msg_cache = asimap.message_cache.MessageCache()
# When we have any connected clients this time gets set to
# None. Otherwise use it to determine when we have hung around long
# enough with no connected clients and decide to exit.
#
self.expiry = time.time() + 1800
# and finally restore any pesistent state stored in the db for the user
# server.
#
self._restore_from_db()
return
