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Viewing changes to lib/lp/poppy/twistedftp.py

  • Committer: Julian Edwards
  • Date: 2011-02-23 15:16:38 UTC
  • mfrom: (12392.7.32 twisted-ftp-poppy)
  • mto: This revision was merged to the branch mainline in revision 12470.
  • Revision ID: julian.edwards@canonical.com-20110223151638-8cw0twgnyx2a8c0y
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lib/lp/poppy/twistedftp.py
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import os
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import tempfile
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from twisted.application import service, strports
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from twisted.cred import checkers, credentials
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from twisted.cred.portal import IRealm
 
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from twisted.cred.portal import IRealm, Portal
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from twisted.internet import defer
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from twisted.protocols import ftp
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from twisted.python import filepath
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    IGPGHandler,
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    )
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from canonical.config import config
 
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from lp.poppy import get_poppy_root
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from lp.poppy.filesystem import UploadFileSystem
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from lp.poppy.hooks import Hooks
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from lp.registry.interfaces.gpg import IGPGKeySet
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class PoppyAccessCheck:
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    """An `ICredentialsChecker` for Poppy FTP sessions."""
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    implements(checkers.ICredentialsChecker)
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    credentialInterfaces = credentials.IUsernamePassword,
 
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    credentialInterfaces = (
 
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        credentials.IUsernamePassword, credentials.IAnonymous)
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    def requestAvatarId(self, credentials):
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        # Poppy allows any credentials.  People can use "anonymous" if
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        # they want but anything goes.  Returning "poppy" here is
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        # a totally arbitrary avatar.
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        return "poppy"
 
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        # they want but anything goes.  Thus, we don't actually *check* the
 
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        # credentials, and we return the standard avatarId for 'anonymous'.
 
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        return checkers.ANONYMOUS
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class PoppyAnonymousShell(ftp.FTPShell):
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        return None
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class FTPServiceFactory(service.Service):
 
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    """A factory that makes an `FTPService`"""
 
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    def __init__(self, port):
 
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        realm = FTPRealm(get_poppy_root())
 
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        portal = Portal(realm)
 
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        portal.registerChecker(PoppyAccessCheck())
 
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        factory = ftp.FTPFactory(portal)
 
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        factory.tld = get_poppy_root()
 
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        factory.protocol = ftp.FTP
 
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        factory.welcomeMessage = "Launchpad upload server"
 
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        factory.timeOut = config.poppy.idle_timeout
 
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        self.ftpfactory = factory
 
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        self.portno = port
 
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    @staticmethod
 
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    def makeFTPService(port=2121):
 
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        strport = "tcp:%s" % port
 
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        factory = FTPServiceFactory(port)
 
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        return strports.service(strport, factory.ftpfactory)