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main.js
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main.js
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#!/bin/env node
//Include express.js
var express = require('express');
//Set up routes
var routes = express();
//Router for the custom page
var router = require('./webtunes_core/router');
var visualizations = require('./webtunes_core/visualizations');
var multer = require('multer');
var colors = require('colors');
/**
* Define the sample application.
*/
var WebTunes = function() {
console.log(" __ __ _ _______ ".cyan.bold);
console.log(" \\ \\ / / | ||__ __| ".cyan.bold);
console.log(" \\ \\ /\\ / /__| |__ | |_ _ _ __ ___ ___ ".cyan.bold);
console.log(" \\ \\/ \\/ / _ \\ '_ \\| | | | | '_ \\ / _ \\/ __|".cyan.bold);
console.log(" \\ /\\ / __/ |_) | | |_| | | | | __/\\__ \\".cyan.bold);
console.log(" \\/ \\/ \\___|_.__/|_|\\__,_|_| |_|\\___||___/".cyan.bold);
console.log("Created by: ");
console.log("\tNikolai Savas".bold+" - "+"http://savas.ca/".cyan+" - McMaster University");
console.log("\tJemar Jones".bold+" - "+"http://jkjones.me/".cyan+" - McMaster University");
console.log("\tSamraj Nalwa".bold+" - "+"http://nalwa.ca/".cyan+" - McMaster University");
// Scope.
var self = this;
/* ================================================================ */
/* Helper functions. */
/* ================================================================ */
/**
* Set up server IP address and port # using env variables/defaults.
*/
self.setupVariables = function() {
// Set the environment variables we need.
self.port = process.env.PORT || 8080;
};
/**
* terminator === the termination handler
* Terminate server on receipt of the specified signal.
* @param {string} sig Signal to terminate on.
*/
self.terminator = function(sig){
if (typeof sig === "string") {
console.log('%s: Received %s - terminating sample app ...',
Date(Date.now()), sig);
process.exit(1);
}
console.log('%s: Node server stopped.', Date(Date.now()) );
};
/**
* Setup termination handlers (for exit and a list of signals).
*/
self.setupTerminationHandlers = function(){
// Process on exit and signals.
process.on('exit', function() { self.terminator(); });
// Removed 'SIGPIPE' from the list - bugz 852598.
['SIGHUP', 'SIGINT', 'SIGQUIT', 'SIGILL', 'SIGTRAP', 'SIGABRT',
'SIGBUS', 'SIGFPE', 'SIGUSR1', 'SIGSEGV', 'SIGUSR2', 'SIGTERM'
].forEach(function(element, index, array) {
process.on(element, function() { self.terminator(element); });
});
};
/* ================================================================ */
/* App server functions (main app logic here). */
/* ================================================================ */
/**
* Create the routing table entries + handlers for the application.
*/
self.createRoutes = function() {
self.routes = { };
self.posts = {};
// self.routes['/asciimo'] = function(req, res) {
// var link = "http://i.imgur.com/kmbjB.png";
// res.send("<html><body><img src='" + link + "'></body></html>");
// };
// self.routes['/'] = function(req, res) {
// res.setHeader('Content-Type', 'text/html');
// res.send(self.cache_get('index.html') );
// };
self.routes['/instructions'] = router.instructionsPage;
self.routes['/u/:user'] = router.userPage;
self.routes['/musicSearchAndSort/:user/:key/:sortby'] = router.musicSearchAndSort;
self.routes['/musicSearchAndSort/:user/:sortby'] = router.musicSearchAndSort;//For the special case of an empty search key
self.routes['/'] = router.homePage;
self.routes['/checkuser/:user'] = router.checkuser;
self.posts['/upload_xml'] = router.uploadXML;
self.posts['/ping_user'] = router.pingUser;
self.posts['/getCloudData'] = visualizations.getCloudData;
self.posts['/getBubbleData'] = visualizations.getBubbleData;
self.posts['/getTagData'] = visualizations.getTagData;
self.posts['/getTrackData'] = visualizations.getTrackData;
};
/**
* Initialize the server (express) and create the routes and register
* the handlers.
*/
self.initializeServer = function() {
self.createRoutes();
self.app = express();
self.app.set('view engine', 'jade');//Used to render our pages
self.app.use(express.static('static'));
self.app.use(express.bodyParser());
self.app.use(multer({
dest: './uploads/',
rename: function (fieldname, filename) {
return filename.replace(/\W+/g, '-').toLowerCase() + Date.now()
}
}));
// Add handlers for the app (from the routes).
for (var r in self.routes) {
self.app.get(r, self.routes[r]);
}
for (var p in self.posts){
self.app.post(p,self.posts[p]);
}
};
/**
* Initializes the sample application.
*/
self.initialize = function() {
self.setupVariables();
self.setupTerminationHandlers();
// Create the express server and routes.
self.initializeServer();
};
/**
* Start the server (starts up the sample application).
*/
self.start = function() {
// Start the app on the specific interface (and port).
self.app.listen(self.port, function() {
console.log('%s: WebTunes started on port: %d ...',
Date(Date.now() ), self.port);
});
};
}; /* Sample Application. */
/**
* main(): Main code.
*/
var zapp = new WebTunes();
zapp.initialize();
zapp.start();