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  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2007-01-17 14:52:35 UTC
  • mfrom: (1.1.5 upstream) (2.1.2 etch)
  • Revision ID: james.westby@ubuntu.com-20070117145235-btmig6qfmqfen0om
Tags: 2.5.0-0ubuntu1
New upstream version, compatible with python2.5.

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twisted/news/news.py
 
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# Copyright (c) 2001-2004 Twisted Matrix Laboratories.
 
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# See LICENSE for details.
 
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"""
 
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Maintainer: U{Jp Calderone<mailto:exarkun@twistedmatrix.com>}
 
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Stability: semi-stable
 
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"""
 
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from twisted.news import nntp
 
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from twisted.internet import protocol, reactor
 
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import time
 
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class NNTPFactory(protocol.ServerFactory):
 
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    """A factory for NNTP server protocols."""
 
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    protocol = nntp.NNTPServer
 
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    def __init__(self, backend):
 
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        self.backend = backend
 
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    def buildProtocol(self, connection):
 
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        p = self.protocol()
 
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        p.factory = self
 
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        return p
 
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class UsenetClientFactory(protocol.ClientFactory):
 
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    def __init__(self, groups, storage):
 
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        self.lastChecks = {}
 
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        self.groups = groups
 
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        self.storage = storage
 
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    def clientConnectionLost(self, connector, reason):
 
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        pass
 
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    def clientConnectionFailed(self, connector, reason):
 
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        print 'Connection failed: ', reason
 
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    def updateChecks(self, addr):
 
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        self.lastChecks[addr] = time.mktime(time.gmtime())
 
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    def buildProtocol(self, addr):
 
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        last = self.lastChecks.setdefault(addr, time.mktime(time.gmtime()) - (60 * 60 * 24 * 7))
 
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        p = nntp.UsenetClientProtocol(self.groups, last, self.storage)
 
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        p.factory = self
 
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        return p
 
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# XXX - Maybe this inheritence doesn't make so much sense?
 
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class UsenetServerFactory(NNTPFactory):
 
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    """A factory for NNTP Usenet server protocols."""
 
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    protocol = nntp.NNTPServer
 
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    def __init__(self, backend, remoteHosts = None, updatePeriod = 60):
 
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        NNTPFactory.__init__(self, backend)
 
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        self.updatePeriod = updatePeriod
 
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        self.remoteHosts = remoteHosts or []
 
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        self.clientFactory = UsenetClientFactory(self.remoteHosts, self.backend)
 
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    def startFactory(self):
 
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        self._updateCall = reactor.callLater(0, self.syncWithRemotes)
 
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    def stopFactory(self):
 
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        if self._updateCall:
 
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            self._updateCall.cancel()
 
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            self._updateCall = None
 
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    def buildProtocol(self, connection):
 
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        p = self.protocol()
 
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        p.factory = self
 
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        return p
 
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    def syncWithRemotes(self):
 
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        for remote in self.remoteHosts:
 
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            reactor.connectTCP(remote, 119, self.clientFactory)
 
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        self._updateCall = reactor.callLater(self.updatePeriod, self.syncWithRemotes)
 
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# backwards compatability
 
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Factory = UsenetServerFactory