twisted starttls test

output.txt

Started to connect.
Connected.
Protocol lost connection. Reason: VerificationError(errors=[DNSMismatch(mismatched_id=DNS_ID(hostname=b'not-google.com'))])
Factory lost connection. Reason: Connection was aborted locally using ITCPTransport.abortConnection.

starttls.py

#!/usr/bin/env python

from twisted.internet import reactor
from twisted.internet.protocol import ClientFactory, Protocol
from twisted.internet.ssl import optionsForClientTLS


class StartTLSClient(Protocol):
    def connectionMade(self):
        print("Connected.")
        context = optionsForClientTLS("not-google.com")
        self.transport.startTLS(context)

    def connectionLost(self, reason):
        print("Protocol lost connection. Reason: %s" % reason.value)


class StartTLSClientFactory(ClientFactory):
    def startedConnecting(self, connector):
        print("Started to connect.")

    def buildProtocol(self, addr):
        return StartTLSClient()

    def clientConnectionLost(self, connector, reason):
        print("Factory lost connection. Reason: %s" % reason.value)


reactor.connectTCP("www.google.com", 443, StartTLSClientFactory())
reactor.run()