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https://github.com/tahoe-lafs/tahoe-lafs.git
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65 lines
2.1 KiB
Python
65 lines
2.1 KiB
Python
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import os.path
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from foolscap import Tub, Referenceable
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from twisted.application import service
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from twisted.python import log
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from allmydata.util.iputil import get_local_ip_for
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from twisted.internet import reactor
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from twisted.internet.base import BlockingResolver
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reactor.installResolver(BlockingResolver())
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class Storage(service.MultiService, Referenceable):
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pass
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class Client(service.MultiService):
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CERTFILE = "client.pem"
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def __init__(self, queen_pburl):
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service.MultiService.__init__(self)
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self.queen_pburl = queen_pburl
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if os.path.exists(self.CERTFILE):
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self.tub = Tub(certData=open(self.CERTFILE, "rb").read())
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else:
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self.tub = Tub()
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f = open(self.CERTFILE, "wb")
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f.write(self.tub.getCertData())
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f.close()
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self.tub.setServiceParent(self)
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self.queen = None # self.queen is either None or a RemoteReference
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self.urls = {}
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def _setup_services(self, local_ip):
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portnum = 0
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l = self.tub.listenOn("tcp:%d" % portnum)
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self.tub.setLocation("%s:%d" % (local_ip, l.getPortnum()))
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s = Storage()
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s.setServiceParent(self)
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self.urls["storage"] = self.tub.registerReference(s, "storage")
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def startService(self):
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# note: this class can only be started and stopped once.
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service.MultiService.startService(self)
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d = get_local_ip_for()
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d.addCallback(self._setup_services)
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if self.queen_pburl:
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self.connector = self.tub.connectTo(self.queen_pburl,
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self._got_queen)
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else:
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log.msg("no queen_pburl, cannot connect")
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def stopService(self):
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if self.queen_pburl:
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self.connector.stopConnecting()
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service.MultiService.stopService(self)
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def _got_queen(self, queen):
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log.msg("connected to queen")
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self.queen = queen
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queen.notifyOnDisconnect(self._lost_queen)
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queen.callRemote("hello", urls=self.urls)
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def _lost_queen(self):
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log.msg("lost connection to queen")
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self.queen = None
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