Calling functions for redis callback example

gistfile1.js

function purgatory() {
    var inPurgatory = true;
    return {
        tryToGetOut: function (message, client, cb) {
            auth.authenticateUserByHash(message.user, message.hash, function(err, data) {
                if (err) {
                    winston.info('[purgatory] Bad auth. Client still in purgatory');
                    inPurgatory = true;
                }
                else {
                    winston.info('[purgatory] out of purgatory');
                    inPurgatory = false;

                    //Once we are sure the client is who s/he claims to be, attach name and hash for future use.
                    client.user = message.user;
                    client.hash = message.hash;

                    if (cb) {
                        return cb();
                    }
                }
            });
        }
        , stillInPurgatory: function() {
            winston.info('[purgatory] status ' + inPurgatory);
            return inPurgatory;
        }
    }
}

// Handle the new connection event for socket by putting the client in purgatory until they auth. 
// TODO - figure out how to clear purgatory listener 
socket.on('connection', function (client) {
    var clientPurgatory = purgatory();
    client.socket = socket; //Once in awhile, we want to reference the socket for broadcasts

    client.on('message', function(message) {
        if (clientPurgatory.stillInPurgatory() && message.event === 'clientauthrequest') {

            //If we can get out of purgatory, set up the client for pubsub
            clientPurgatory.tryToGetOut(message, client, function () {
                channelmanager.setupClientForSubscriptions(client, function () {
                    winston.info('Client ' + client.sessionId + ' setup for pub/sub');
                });

                channelmanager.subscribeClientToChannel(client, 'main', function (){
                    winston.info('Client ' + client.sessionId + ' subcribed to main topic');
                });
               

                usermanager.newUserConnection(client, function() {
                    winston.info('Client ' + client.sessionId + ' connection setup.');
                });
                client.on('disconnect', function () {
                    clientDisconnect(client);
                });
            });
        }
        else {
            messagerouter.handleMessage(message, client, function (err, data) {});
        }
    });
});

Goes with https://gist.github.com/902705