text: # -*- coding: utf-8 -*-
  
  import smtpd
  import asyncore
  import argparse
  from email.parser import Parser
  
  from logbook import Logger
  
  
  log = Logger(__name__)
  
  
  class InboxServer(smtpd.SMTPServer, object):
      """Logging-enabled SMTPServer instance with handler support."""
  
      def __init__(self, handler, *args, **kwargs):
          super(InboxServer, self).__init__(*args, **kwargs)
          self._handler = handler
  
      def process_message(self, peer, mailfrom, rcpttos, data, mail_options="", rcpt_options=""):
          #log.info('Collating message from {0}'.format(mailfrom))
          #subject = Parser().parsestr(data)['subject']
          #log.debug(dict(to=rcpttos, sender=mailfrom, subject=subject, body=data))
          return self._handler(to=rcpttos, sender=mailfrom, body=data)
  
  
  class Inbox(object):
      """A simple SMTP Inbox."""
  
      def __init__(self, port=None, address=None):
          self.port = port
          self.address = address
          self.collator = None
  
      def collate(self, collator):
          """Function decorator. Used to specify inbox handler."""
          self.collator = collator
          return collator
  
      def serve(self, port=None, address=None):
          """Serves the SMTP server on the given port and address."""
          port = port or self.port
          address = address or self.address
  
          log.info('Starting SMTP server at {0}:{1}'.format(address, port))
  
          server = InboxServer(self.collator, (address, port), None)
  
          try:
              asyncore.loop()
          except KeyboardInterrupt:
              log.info('Cleaning up')
  
      def dispatch(self):
          """Command-line dispatch."""
          parser = argparse.ArgumentParser(description='Run an Inbox server.')
  
          parser.add_argument('addr', metavar='addr', type=str, help='addr to bind to')
          parser.add_argument('port', metavar='port', type=int, help='port to bind to')
  
          args = parser.parse_args()
  
          self.serve(port=args.port, address=args.addr)
  