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Viewing changes to doc/howto/tutorial/listings/finger/finger10.py

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2010-01-02 19:38:17 UTC
  • mfrom: (2.2.4 sid)
  • Revision ID: james.westby@ubuntu.com-20100102193817-jphp464ppwh7dulg
Tags: 9.0.0-1
http://bugs.debian.org/557781
* python-twisted: Depend on the python-twisted-* 9.0 packages.
* python-twisted: Depend on python-zope.interface only. Closes: #557781.

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doc/howto/tutorial/listings/finger/finger10.py
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# Read username, output from factory interfacing to web, drop connections
 
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from twisted.internet import protocol, reactor, defer, utils
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from twisted.protocols import basic
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from twisted.web import client
 
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class FingerProtocol(basic.LineReceiver):
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    def lineReceived(self, user):
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        self.factory.getUser(user
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        ).addErrback(lambda _: "Internal error in server"
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        ).addCallback(lambda m:
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                      (self.transport.write(m+"\r\n"),
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                       self.transport.loseConnection()))
 
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        d = self.factory.getUser(user)
 
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        def onError(err):
 
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            return 'Internal error in server'
 
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        d.addErrback(onError)
 
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        def writeResponse(message):
 
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            self.transport.write(message + '\r\n')
 
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            self.transport.loseConnection()
 
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        d.addCallback(writeResponse)
 
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class FingerFactory(protocol.ServerFactory):
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    protocol = FingerProtocol
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    def __init__(self, prefix): self.prefix=prefix
 
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    def __init__(self, prefix):
 
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        self.prefix=prefix
 
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    def getUser(self, user):
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        return client.getPage(self.prefix+user)
 
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reactor.listenTCP(1079, FingerFactory(prefix='http://livejournal.com/~'))
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reactor.run()