express-ipfilter-secured/example/app.js

A light-weight IP address based filtering system

'use strict';

var express = require('express');
var path = require('path');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var favicon = require('serve-favicon');

var routes = require('./routes/index');
var users = require('./routes/users');
var ipfilter = require('express-ipfilter').IpFilter;
var IpDeniedError = require('express-ipfilter').IpDeniedError;

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// uncomment after placing your favicon in /public
app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

var ips = ['::ffff:127.0.0.1'];
app.use(ipfilter(ips, {mode: 'allow'}));

app.use('/', routes);
app.use('/users', users);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.use(function(err, req, res, _next) {
    console.log('Error handler', err);
    if(err instanceof IpDeniedError){
      res.status(401);
    }else{
      res.status(err.status || 500);
    }

    res.render('error', {
      message: 'You shall not pass',
      error: err
    });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, _next) {
  console.log('Error handler', err);
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    error: {}
  });
});

module.exports = app;