loops/organize/presence.py
helmutm 48701178bd add a portlet showing the presence of other users; may be activated by the global option 'organize.showPresence'
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@3466 fd906abe-77d9-0310-91a1-e0d9ade77398
2009-07-20 14:56:04 +00:00

68 lines
2.2 KiB
Python

#
# Copyright (c) 2009 Helmut Merz helmutm@cy55.de
#
# This program 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
"""
Utility for collecting information about logged-in/active users.
Author: Hannes Plattner.
$Id$
"""
from zope.interface import implements
from zope.cachedescriptors.property import Lazy
from cybertools.meta.interfaces import IOptions
from cybertools.util.date import getTimeStamp
from loops.organize.interfaces import IPresence
from loops.organize import util
class Presence(object):
implements(IPresence)
def __init__(self, min_until_logout=10, presentUsers=None):
self.min_until_logout = min_until_logout
self.presentUsers = presentUsers or {}
def update(self, principalId):
self.addPresentUser(principalId)
self.removeInactiveUsers()
def addPresentUser(self, principalId):
self.presentUsers[principalId] = getTimeStamp()
def removeInactiveUsers(self):
toDelete = []
for id, timeStamp in self.presentUsers.iteritems():
if (getTimeStamp() - timeStamp) > (self.min_until_logout*60):
toDelete.append(id)
for id in toDelete:
if id in self.presentUsers:
del self.presentUsers[id]
def getPresentUsers(self):
ret = []
for id, timeStamp in self.presentUsers.iteritems():
ret.append(util.getPrincipalForUserId(id).title)
return ret
def removePresentUser(self, principalId):
if principalId in self.presentUsers:
del self.presentUsers[principalId]