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import os
from zope.interface import implements
from twisted.application import service
application = service.Application("SMTP Server Tutorial")
from twisted.application import internet
from twisted.internet import protocol, defer
smtpServerFactory = protocol.ServerFactory()
from twisted.mail import smtp
class FileMessage(object):
implements(smtp.IMessage)
def __init__(self, fileObj):
self.fileObj = fileObj
def lineReceived(self, line):
self.fileObj.write(line + '\n')
def eomReceived(self):
self.fileObj.close()
return defer.succeed(None)
def connectionLost(self):
self.fileObj.close()
os.remove(self.fileObj.name)
class TutorialESMTP(smtp.ESMTP):
counter = 0
def validateTo(self, user):
fileName = 'tutorial-smtp.' + str(self.counter)
self.counter += 1
return lambda: FileMessage(file(fileName, 'w'))
def validateFrom(self, helo, origin):
return origin
def receivedHeader(self, helo, origin, recipients):
return 'Received: Tutorially.'
smtpServerFactory.protocol = TutorialESMTP
smtpServerService = internet.TCPServer(2025, smtpServerFactory)
smtpServerService.setServiceParent(application)
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