459 lines
20 KiB
Python
Executable File
459 lines
20 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- coding: iso-8859-15 -*-
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# Glasnost
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# By: Odile Bénassy <obenassy@entrouvert.com>
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# Romain Chantereau <rchantereau@entrouvert.com>
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# Nicolas Clapiès <nclapies@easter-eggs.org>
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# Pierre-Antoine Dejace <padejace@entrouvert.be>
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# Thierry Dulieu <tdulieu@easter-eggs.com>
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# Florent Monnier <monnier@codelutin.com>
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# Cédric Musso <cmusso@easter-eggs.org>
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# Frédéric Péters <fpeters@entrouvert.be>
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# Benjamin Poussin <poussin@codelutin.com>
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# Emmanuel Raviart <eraviart@entrouvert.com>
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# Sébastien Régnier <regnier@codelutin.com>
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# Emmanuel Saracco <esaracco@easter-eggs.com>
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#
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# Copyright (C) 2000, 2001 Easter-eggs & Emmanuel Raviart
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# Copyright (C) 2002 Odile Bénassy, Code Lutin, Thierry Dulieu, Easter-eggs,
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# Entr'ouvert, Frédéric Péters, Benjamin Poussin, Emmanuel Raviart,
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# Emmanuel Saracco & Théridion
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# Copyright (C) 2003 Odile Bénassy, Romain Chantereau, Nicolas Clapiès,
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# Code Lutin, Pierre-Antoine Dejace, Thierry Dulieu, Easter-eggs,
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# Entr'ouvert, Florent Monnier, Cédric Musso, Ouvaton, Frédéric Péters,
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# Benjamin Poussin, Rodolphe Quiédeville, Emmanuel Raviart, Sébastien
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# Régnier, Emmanuel Saracco, Théridion & Vecam
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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__doc__ = """Glasnost Ballots Server"""
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__version__ = '$Revision$'[11:-2]
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import sys
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import whrandom
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glasnostPythonDir = '/usr/local/lib/glasnost-devel' # changed on make install
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sys.path.insert(0, glasnostPythonDir)
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import glasnost
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import glasnost.common.faults as faults
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import glasnost.common.tools_new as commonTools
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from glasnost.server.ObjectsServer import Server, VirtualServer
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from glasnost.server.tools import *
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import glasnost.proxy.VotesProxy # Do not remove!
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applicationName = 'BallotsServer'
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applicationRole = 'ballots'
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dispatcher = None
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class BallotsVirtualServer(VirtualServer):
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electionIds = None
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voteIds = None
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voterIds = None
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def convertIds(self, sourceDispatcherId, destinationDispatcherId):
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VirtualServer.convertIds(
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self, sourceDispatcherId, destinationDispatcherId)
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for token, id in self.electionIds.items():
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newId = id.replace(sourceDispatcherId, destinationDispatcherId)
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if newId != id:
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self.electionIds[token] = newId
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for token, id in self.voteIds.items():
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newId = id.replace(sourceDispatcherId, destinationDispatcherId)
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if newId != id:
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self.voteIds[token] = newId
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for token, id in self.voterIds.items():
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newId = id.replace(sourceDispatcherId, destinationDispatcherId)
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if newId != id:
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self.voterIds[token] = newId
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def init(self):
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VirtualServer.init(self)
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self.electionIds = {}
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self.voteIds = {}
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self.voterIds = {}
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def initFromOldData(self, data):
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VirtualServer.initFromOldData(self, data)
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(self.electionIds, self.voteIds, self.voterIds) = data
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def removeIds(self, rolesToKeep):
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VirtualServer.removeIds(self, rolesToKeep)
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for token, id in self.electionIds.items():
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if not commonTools.extractRole(id) in rolesToKeep:
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del self.electionIds[token]
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for token, id in self.voteIds.items():
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if not commonTools.extractRole(id) in rolesToKeep:
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del self.voteIds[token]
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for token, id in self.voterIds.items():
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if not commonTools.extractRole(id) in rolesToKeep:
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del self.voterIds[token]
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class BallotsServer(Server):
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VirtualServer = BallotsVirtualServer
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def abstainForVote(self, electionId):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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userId = getProxyForServerRole('authentication').getUserId()
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user = getProxyForServerRole('people').getObject(userId)
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if user.voteTokens is not None \
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and user.voteTokens.has_key(electionId):
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previousVoteToken = user.voteTokens[electionId]
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else:
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previousVoteToken = ''
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if previousVoteToken \
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and virtualServer.voteIds.has_key(previousVoteToken):
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voteId = virtualServer.voteIds[previousVoteToken]
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previousVote = getProxyForServerRole('votes').getObject(voteId)
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del virtualServer.electionIds[previousVote.electionToken]
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del virtualServer.voterIds[previousVote.voterToken]
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del virtualServer.voteIds[previousVote.token]
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getProxyForServerRole('people').abstainForVote(electionId)
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getProxyForServerRole('elections').abstainForVote(
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electionId, previousVoteToken)
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getProxyForServerRole('votes').deleteObject(voteId)
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virtualServer.markAllAsDirtyFIXME()
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def canGetVoteVoterId(self, voteId):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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userId = getProxyForServerRole('authentication').getUserId()
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vote = getProxyForServerRole('votes').getObject(voteId)
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if not virtualServer.voterIds.has_key(vote.voterToken):
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return 0
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if not virtualServer.electionIds.has_key(vote.electionToken):
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return 0
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voterId = virtualServer.voterIds[vote.voterToken]
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electionId = virtualServer.electionIds[vote.electionToken]
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if voterId == userId:
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voteIsSecret = 0
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else:
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electionBallotKind = getProxyForServerRole(
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'elections').getBallotKind(electionId)
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voteIsSecret = electionBallotKind == 'secret' \
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or electionBallotKind == 'voterChoice' \
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and vote.ballotKind == 'secret'
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return not voteIsSecret
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def getElectionIdFromToken(self, electionToken):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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if not virtualServer.electionIds.has_key(electionToken):
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raise faults.UnknownElectionToken(electionToken)
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return virtualServer.electionIds[electionToken]
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def getElectionVotes(self, voteTokens, electionVoterIds):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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votesExport = []
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for voteToken in voteTokens:
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if virtualServer.voteIds.has_key(voteToken):
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voteId = virtualServer.voteIds[voteToken]
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if getProxyForServerRole('votes').hasObject(voteId):
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vote = getProxyForServerRole('votes').getObject(voteId)
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if virtualServer.voterIds.has_key(vote.voterToken):
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voterId = virtualServer.voterIds[vote.voterToken]
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if voterId in electionVoterIds:
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votesExport.append(vote.exportToXmlRpc())
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return votesExport
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def getElectionWeightings(self, voteTokens, weightingsById):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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electionVoterIds = weightingsById.keys()
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weightings = {}
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for voteToken in voteTokens:
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if virtualServer.voteIds.has_key(voteToken):
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voteId = virtualServer.voteIds[voteToken]
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if getProxyForServerRole('votes').hasObject(voteId):
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vote = getProxyForServerRole('votes').getObject(voteId)
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if virtualServer.voterIds.has_key(vote.voterToken):
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voterId = virtualServer.voterIds[vote.voterToken]
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if voterId in electionVoterIds:
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weightings[vote.voterToken] = weightingsById[
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voterId]
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return weightings
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def getVote(self, voteId):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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userId = getProxyForServerRole('authentication').getUserId()
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vote = getProxyForServerRole('votes').getObject(voteId)
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if not virtualServer.voterIds.has_key(vote.voterToken):
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raise faults.UnknownVoterToken(vote.voterToken)
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if not virtualServer.electionIds.has_key(vote.electionToken):
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raise faults.UnknownElectionToken(vote.electionToken)
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## voterId = virtualServer.voterIds[vote.voterToken]
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## electionId = virtualServer.electionIds[vote.electionToken]
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## if voterId == userId:
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## voteIsSecret = 0
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## else:
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## electionBallotKind = getProxyForServerRole('elections').getBallotKind(
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## electionId)
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## voteIsSecret = electionBallotKind == 'secret' \
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## or electionBallotKind == 'voterChoice' \
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## and vote.ballotKind == 'secret'
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## if voteIsSecret:
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## voteExport = 'secret'
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## else:
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## voteExport = vote.exportToXmlRpc()
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voteExport = vote.exportToXmlRpc()
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return voteExport
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def getVoteFromToken(self, voteToken):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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if voteToken == 'secret':
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return 'secret'
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userId = getProxyForServerRole('authentication').getUserId()
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if not virtualServer.voteIds.has_key(voteToken):
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raise faults.UnknownVoteToken(voteToken)
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voteId = virtualServer.voteIds[voteToken]
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vote = getProxyForServerRole('votes').getObject(voteId)
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if not virtualServer.voterIds.has_key(vote.voterToken):
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raise faults.UnknownVoterToken(vote.voterToken)
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voterId = virtualServer.voterIds[vote.voterToken]
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if not virtualServer.electionIds.has_key(vote.electionToken):
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raise faults.UnknownElectionToken(vote.electionToken)
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electionId = virtualServer.electionIds[vote.electionToken]
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if voterId == userId:
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voteIsSecret = 0
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else:
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electionBallotKind = getProxyForServerRole(
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'elections').getBallotKind(electionId)
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voteIsSecret = electionBallotKind == 'secret' \
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or electionBallotKind == 'voterChoice' \
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and vote.ballotKind == 'secret'
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if voteIsSecret:
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voteExport = 'secret'
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else:
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voteExport = vote.exportToXmlRpc()
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return voteExport
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def getVotesFromTokens(self, voteTokens):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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userId = getProxyForServerRole('authentication').getUserId()
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votesExport = {}
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for electionId, voteToken in voteTokens.items():
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if voteToken == 'secret':
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votesExport[electionId] = 'secret'
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continue
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if not getProxyForServerRole('elections').hasObject(
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electionId):
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continue
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if not virtualServer.voteIds.has_key(voteToken):
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continue
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voteId = virtualServer.voteIds[voteToken]
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if not getProxyForServerRole('votes').hasObject(voteId):
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continue
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vote = getProxyForServerRole('votes').getObject(voteId)
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if not virtualServer.voterIds.has_key(vote.voterToken):
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continue
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voterId = virtualServer.voterIds[vote.voterToken]
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if voterId == userId:
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voteIsSecret = 0
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else:
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electionBallotKind = getProxyForServerRole(
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'elections').getBallotKind(electionId)
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voteIsSecret = electionBallotKind == 'secret' \
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or electionBallotKind == 'voterChoice' \
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and vote.ballotKind == 'secret'
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if voteIsSecret:
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votesExport[electionId] = 'secret'
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else:
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votesExport[electionId] = vote.exportToXmlRpc()
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return votesExport
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def getVoteVoterId(self, voteId):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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userId = getProxyForServerRole('authentication').getUserId()
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vote = getProxyForServerRole('votes').getObject(voteId)
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if not virtualServer.voterIds.has_key(vote.voterToken):
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raise faults.UnknownVoterToken(vote.voterToken)
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if not virtualServer.electionIds.has_key(vote.electionToken):
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raise faults.UnknownElectionToken(vote.electionToken)
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voterId = virtualServer.voterIds[vote.voterToken]
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electionId = virtualServer.electionIds[vote.electionToken]
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if voterId == userId:
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voteIsSecret = 0
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else:
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electionBallotKind = getProxyForServerRole(
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'elections').getBallotKind(electionId)
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voteIsSecret = electionBallotKind == 'secret' \
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or electionBallotKind == 'voterChoice' \
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and vote.ballotKind == 'secret'
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if voteIsSecret:
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raise faults.UserAccessDenied()
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return voterId
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def init(self):
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self.randomGenerator = whrandom.whrandom()
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Server.init(self)
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def isVoteSecret(self, voteToken):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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if voteToken == 'secret':
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return 'secret'
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userId = getProxyForServerRole('authentication').getUserId()
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if not virtualServer.voteIds.has_key(voteToken):
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raise faults.UnknownVoteToken(voteToken)
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voteId = virtualServer.voteIds[voteToken]
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vote = getProxyForServerRole('votes').getObject(voteId)
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if not virtualServer.voterIds.has_key(vote.voterToken):
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raise faults.UnknownVoterToken(vote.voterToken)
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voterId = virtualServer.voterIds[vote.voterToken]
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if not virtualServer.electionIds.has_key(vote.electionToken):
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raise faults.UnknownElectionToken(vote.electionToken)
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electionId = virtualServer.electionIds[vote.electionToken]
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if voterId == userId:
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voteIsSecret = 0
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else:
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electionBallotKind = getProxyForServerRole(
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'elections').getBallotKind(electionId)
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voteIsSecret = electionBallotKind == 'secret' \
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or electionBallotKind == 'voterChoice' \
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and vote.ballotKind == 'secret'
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return voteIsSecret
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def registerPublicMethods(self):
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Server.registerPublicMethods(self)
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self.registerPublicMethod('abstainForVote')
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self.registerPublicMethod('canGetVoteVoterId')
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self.registerPublicMethod('getElectionIdFromToken')
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self.registerPublicMethod('getElectionVotes')
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self.registerPublicMethod('getElectionWeightings')
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self.registerPublicMethod('getVote')
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self.registerPublicMethod('getVoteFromToken')
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self.registerPublicMethod('getVotesFromTokens')
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self.registerPublicMethod('getVoteVoterId')
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self.registerPublicMethod('isVoteSecret')
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self.registerPublicMethod('vote')
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def repairVirtualServer(self, virtualServer, version):
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changed = 0
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if version < 4000:
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for token, id in virtualServer.electionIds.items():
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newId = repairId(id)
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if newId:
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changed = 1
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virtualServer.electionIds[token] = newId
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for token, id in virtualServer.voteIds.items():
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newId = repairId(id)
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if newId:
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changed = 1
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virtualServer.voteIds[token] = newId
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for token, id in virtualServer.voterIds.items():
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newId = repairId(id)
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if newId:
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changed = 1
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virtualServer.voterIds[token] = newId
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if version < 1007000:
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for token, id in virtualServer.voteIds.items():
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if not token.startswith('glasnost://'):
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changed = 1
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del virtualServer.voteIds[token]
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token = '%s/votes/%s' % (
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commonTools.extractDispatcherId(
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virtualServer.virtualServerId), token)
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virtualServer.voteIds[token] = id
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if changed:
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virtualServer.markAllAsDirtyFIXME()
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def vote(self, electionId, voteImport):
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virtualServerId = context.getVar('applicationId')
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virtualServer = self.getVirtualServer(virtualServerId)
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userId = getProxyForServerRole('authentication').getUserId()
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user = getProxyForServerRole('people').getObject(userId)
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if user.voteTokens is not None \
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and user.voteTokens.has_key(electionId):
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previousVoteToken = user.voteTokens[electionId]
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else:
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previousVoteToken = ''
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if previousVoteToken \
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and virtualServer.voteIds.has_key(previousVoteToken):
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voteId = virtualServer.voteIds[previousVoteToken]
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else:
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voteId = ''
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vote = commonTools.importThing(voteImport)
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if voteId:
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vote.id = voteId
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while 1:
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electionToken = str(self.randomGenerator.uniform(0.1, 1))[2:]
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if not virtualServer.electionIds.has_key(electionToken):
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break
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vote.electionToken = electionToken
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while 1:
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voterToken = str(self.randomGenerator.uniform(0.1, 1))[2:]
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if not virtualServer.voterIds.has_key(voterToken):
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break
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vote.voterToken = voterToken
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while 1:
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voteLocalToken = str(self.randomGenerator.uniform(0.1, 1))[2:]
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voteToken = '%s/votes/%s' % (
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commonTools.extractDispatcherId(virtualServerId),
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voteLocalToken)
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if not virtualServer.voteIds.has_key(voteToken):
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break
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vote.token = voteToken
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if voteId:
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previousVote = getProxyForServerRole('votes').getObject(voteId)
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getProxyForServerRole('votes').modifyObject(vote)
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del virtualServer.electionIds[previousVote.electionToken]
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del virtualServer.voterIds[previousVote.voterToken]
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del virtualServer.voteIds[previousVote.token]
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else:
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voteId = getProxyForServerRole('votes').addObject(
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vote, serverId = commonTools.extractServerId(electionId))
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getProxyForServerRole('people').vote(electionId, voteToken)
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getProxyForServerRole('elections').vote(
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electionId, voteToken, previousVoteToken)
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virtualServer.electionIds[electionToken] = electionId
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virtualServer.voterIds[voterToken] = userId
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virtualServer.voteIds[voteToken] = voteId
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virtualServer.markAllAsDirtyFIXME()
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return voteId
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ballotsServer = BallotsServer()
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if __name__ == "__main__":
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ballotsServer.launch(applicationName, applicationRole)
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