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# This file is part of Buildbot. Buildbot is free software: you can
# redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright Buildbot Team Members
from twisted.spread import pb
from twisted.python import log
from twisted.spread.interfaces import IJellyable
def patch():
log.msg("Applying patch for http://twistedmatrix.com/trac/ticket/5079")
if not hasattr(pb, '_JellyableAvatarMixin'):
log.msg("..patch not applicable; please file a bug at buildbot.net")
else:
pb._JellyableAvatarMixin._cbLogin = _fixed_cbLogin
def _fixed_cbLogin(self, (interface, avatar, logout)):
"""
Ensure that the avatar to be returned to the client is jellyable and
set up disconnection notification to call the realm's logout object.
"""
if not IJellyable.providedBy(avatar):
avatar = pb.AsReferenceable(avatar, "perspective")
puid = avatar.processUniqueID()
# only call logout once, whether the connection is dropped (disconnect)
# or a logout occurs (cleanup), and be careful to drop the reference to
# it in either case
logout = [ logout ]
def maybeLogout():
if not logout: return
fn = logout[0]
del logout[0]
fn()
self.broker._localCleanup[puid] = maybeLogout
self.broker.notifyOnDisconnect(maybeLogout)
return avatar
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