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pigallery2/backend/server.js

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2016-03-12 19:53:19 +08:00
///<reference path="../typings/tsd.d.ts"/>
var _express = require('express');
var _debug = require('debug');
var _http = require('http');
var debug = _debug("PiGallery2:server");
var app = _express();
if (process.env.DEBUG) {
console.log("Running in DEBUG mode");
app.use(_morgan('dev'));
}
app.use(_express.static(__dirname + './../frontend'));
app.use('/node_modules', _express.static(__dirname + './../node_modules'));
/**
* Get port from environment and store in Express.
*/
var port = normalizePort(process.env.PORT || '3001');
app.set('port', port);
/**
* Create HTTP server.
*/
var server = _http.createServer(app);
/**
* Listen on provided port, on all network interfaces.
*/
server.listen(port);
server.on('error', onError);
server.on('listening', onListening);
/**
* Normalize a port into a number, string, or false.
*/
function normalizePort(val) {
var port = parseInt(val, 10);
if (isNaN(port)) {
// named pipe
return val;
}
if (port >= 0) {
// port number
return port;
}
return false;
}
/**
* Event listener for HTTP server "error" event.
*/
function onError(error) {
if (error.syscall !== 'listen') {
throw error;
}
var bind = typeof port === 'string'
? 'Pipe ' + port
: 'Port ' + port;
// handle specific listen errors with friendly messages
switch (error.code) {
case 'EACCES':
console.error(bind + ' requires elevated privileges');
process.exit(1);
break;
case 'EADDRINUSE':
console.error(bind + ' is already in use');
process.exit(1);
break;
default:
throw error;
}
}
/**
* Event listener for HTTP server "listening" event.
*/
function onListening() {
var addr = server.address();
var bind = typeof addr === 'string'
? 'pipe ' + addr
: 'port ' + addr.port;
debug('Listening on ' + bind);
}