Use user-defined config based on supplied template

.gitignore

@@ -1,4 +1,5 @@
 .DS_Store
+config.js
 node_modules
 npm-debug.log
 server/assets

config.template.js

@@ -0,0 +1,16 @@
+const config = {
+  dbCleanInterval: 1000 * 60 * 60,
+  dbPath: './server/db/',
+  floodServerPort: 3000,
+  maxHistoryStates: 30,
+  pollInterval: 1000 * 5,
+  secret: 'flood',
+  scgi: {
+    host: 'localhost',
+    port: 5000,
+    socket: false,
+    socketPath: '/tmp/rtorrent.sock'
+  }
+};
+
+module.exports = config;

server/bin/www

@@ -1,10 +1,19 @@
 #!/usr/bin/env node
 
-/**
- * Module dependencies.
- */
+'use strict';
+
+// Ensure we have a user-defined config.js for use throughout the app.
+try {
+  let fs = require('fs');
+  fs.accessSync('./config.js', fs.F_OK);
+} catch (e) {
+  console.error('Cannot start Flood server, config.js is missing. Copy ' +
+    'config.template.js to config.js.');
+  return;
+}
 
 var app = require('../app');
+let config = require('../../config');
 var debug = require('debug')('flood:server');
 var http = require('http');
 
@@ -12,7 +21,7 @@ var http = require('http');
  * Get port from environment and store in Express.
  */
 
-var port = normalizePort(process.env.PORT || '3000');
+var port = normalizePort(config.floodServerPort);
 app.set('port', port);
 
 /**