In my Client-Server Application,I do not want two user login with the same
login name.
For example, user1 logined with name "test1",then user2 try to login with
"test1" too, the login of user2 should be denied. At now, my code could not
achieve this goal,so what's the method.
Thanks all!
The following is server code:
-----------------------------------------------------------------------------
class simulationServer:
def __init__(self):
self.groups = {} # indexed by name
self.groups['#admin']= Group('#admin')
self.groups['#general']=Group('#general')
def joinGroup(self, groupname, user):
if groupname not in self.groups:
self.groups[groupname] = Group(groupname)
self.groups[groupname].addUser(user)
return self.groups[groupname]
def leaveGroup(self, groupname, user):
self.groups[groupname].delUser(user)
return self.groups[groupname]
def getGroup(self, admin=False):
if admin==True:
return self.groups['#admin']
return self.groups['#general']
class simulRealm:
implements(portal.IRealm)
def requestAvatar(self, avatarID, mind, *interfaces):
assert pb.IPerspective in interfaces
avatar = User(avatarID)
avatar.server = self.server
avatar.attached(mind)
return pb.IPerspective, avatar, lambda a=avatar:a.detached(mind)
class User(pb.Avatar):
def __init__(self, name):
self.name = name
self.group=None
self.status=False #False: general client user not sync yet
self.serverRoot=ServerRoot()
def attached(self, mind):
self.remote = mind
def detached(self, mind):
print '%s detached...'%self.name
self.server.leaveGroup(self.group, self)
self.server.messageClientUserupdated()
self.remote = None
def perspective_joinGroup(self, groupname):
print 'joined Group on Server Machine '
print groupname
self.group=groupname
self.server.joinGroup(groupname, self)
self.server.messageClientUserupdated()
return groupname
def perspective_getServerRoot(self):
return self.serverRoot
def getClientRoot(self):
return self.remote
def perspective_updateStatus(self):
self.status=True # user sync
class Group(pb.Viewable):
def __init__(self, groupname):
self.name = groupname
self.users = []
def addUser(self, user):
self.users.append(user)
def delUser(self, user):
self.users.remove(user)
def getallUsers(self):
return self.users
def getnotSyncUsers(self):
nosyncusers=[]
if self.users:
for user in self.users:
if not user.status:
nosyncusers.append(user)
return nosyncusers
def getUsers(self):
syncusers=[]
if self.users:
for user in self.users:
if user.status:
syncusers.append(user)
return syncusers
-----------------------------------------------------------------------------
Client code:
def1 =
factory.login(credentials.UsernamePassword(self.group+'_'+self.UserNameandPwd[0],
self.UserNameandPwd[1]), client=self)
def1.addCallback(self.connected)
def1.addErrback(self.connectFailure)_______________________________________________
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