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server.js
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server.js
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#!/bin/env node
var express = require('express');
var bodyParser = require('body-parser')
var fs = require('fs');
var logs = require('./lib/logs/index');
var compat = require('./lib/compat/index');
var match = require('./lib/match/index');
var uploads = require('./lib/uploads/index');
var ReportApp = function() {
var self = this;
/**
* Set up server IP address and port # using env variables/defaults.
*/
self.setupVariables = function() {
// Set the environment variables we need.
self.ipaddress = process.env.OPENSHIFT_INTERNAL_IP;
self.port = process.env.OPENSHIFT_INTERNAL_PORT || 8080;
if (typeof self.ipaddress === "undefined") {
// Log errors on OpenShift but continue w/ 127.0.0.1 - this
// allows us to run/test the app locally.
console.warn('No OPENSHIFT_INTERNAL_IP var, using 127.0.0.1');
self.ipaddress = "127.0.0.1";
};
};
// Local cache for static content.
self.staticCache = {};
self.preloadStatic = function ()
{
var preload = ['./pages/index.html', './pages/logs.html', './pages/errors/404.html', './pages/errors/500.html'];
for (var i = 0; i < preload.length; ++i)
{
var f = preload[i];
self.staticCache[f] = fs.readFileSync(f);
}
};
// Do not use on untrusted user strings. Keys must be paths.
self.getStatic = function (key)
{
if (key in self.staticCache)
return self.staticCache[key];
return self.staticCache[key] = fs.readFileSync(key);
};
/**
* 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 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); });
});
};
/**
* Create the routing table entries + handlers for the application.
*/
self.createRoutes = function() {
self.routes = { };
self.routes['/health'] = function (req, res) {
res.send('1');
};
// TODO: It'd probably be better to serve these via nginx directly.
const MAX_AGE = 3600 * 4;
var cssRoute = function (req, res)
{
res.setHeader('Content-Type', 'text/css');
res.setHeader('Cache-Control', 'public, max-age=' + MAX_AGE);
res.setHeader('Expires', new Date(Date.now() + MAX_AGE * 1000).toUTCString());
res.send(self.getStatic('.' + req.route.path));
};
var jsRoute = function (req, res)
{
res.setHeader('Content-Type', 'application/x-javascript');
res.setHeader('Cache-Control', 'public, max-age=' + MAX_AGE);
res.setHeader('Expires', new Date(Date.now() + MAX_AGE * 1000).toUTCString());
res.send(self.getStatic('.' + req.route.path));
};
var imgRoute = function (req, res)
{
res.setHeader('Content-Type', 'image/png');
res.setHeader('Cache-Control', 'public, max-age=' + MAX_AGE);
res.setHeader('Expires', new Date(Date.now() + MAX_AGE * 1000).toUTCString());
res.send(self.getStatic('.' + req.route.path));
};
var errorRoute = function (req, res)
{
res.status(404);
if (req.accepts('html'))
{
res.end(String(self.getStatic('./pages/errors/404.html')));
return;
}
res.type('txt').end('404 Not Found');
};
self.routes['/css/style.css'] = cssRoute;
self.routes['/css/style.min.css'] = cssRoute;
self.routes['/css/logs.min.css'] = cssRoute;
self.routes['/css/compat.min.css'] = cssRoute;
self.routes['/js/libs/jquery-1.7.2.min.js'] = jsRoute;
self.routes['/js/libs/modernizr-2.5.3-respond-1.1.0.min.js'] = jsRoute;
self.routes['/js/common.min.js'] = jsRoute;
self.routes['/js/game.min.js'] = jsRoute;
self.routes['/img/star.png'] = imgRoute;
self.routes['/img/star2.png'] = imgRoute;
self.routes['/img/star_grey.png'] = imgRoute;
self.routes['*'] = errorRoute;
logs.addRoutes(self);
compat.addRoutes(self);
match.addRoutes(self);
uploads.addRoutes(self);
};
/**
* Initialize the server (express) and create the routes and register
* the handlers.
*/
self.initializeServer = function() {
self.app = express();
self.app.set('trust proxy', true);
self.app.use(bodyParser.urlencoded({ extended: false }));
self.app.use(bodyParser.json());
// Add handlers for the app (from the routes).
self.createRoutes();
for (var r in self.routes) {
self.app.get(r, self.routes[r]);
}
};
/**
* Initializes the sample application.
*/
self.initialize = function() {
self.setupVariables();
self.preloadStatic();
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, self.ipaddress, function() {
console.log('%s: Node server started on %s:%d ...',
Date(Date.now()), self.ipaddress, self.port);
});
};
};
/**
* main(): Main code.
*/
var zapp = new ReportApp();
zapp.initialize();
zapp.start();