Node.js + Express(Jade) + MongoDB(mongose + connect-mongo) でログイン認証機能を実装

app.js

/**
 * Module dependencies.
 */

var express    = require('express'),
    routes     = require('./routes'),
    http       = require('http'),
    path       = require('path'),
    MongoStore = require('connect-mongo')(express);

var app = express();

var domain = (process.env.NODE_ENV === 'production')?'10.0.82.198':'127.0.0.1';

app.configure(function(){
    app.set('views', __dirname + '/views');
    app.set('view engine', 'jade');
    app.locals.pretty = true;
    app.use(express.favicon());
    app.use(express.logger('dev'));
    app.use(express.bodyParser());
    app.use(express.methodOverride());
    app.use(express.cookieParser());
    app.use(express.session({
        secret: 'secret',
        store: new MongoStore({
            db: 'session',
            host: domain,
            clear_interval: 60 * 60
        }),
        cookie: {
            httpOnly: false,
            maxAge: new Date(Date.now() + 60 * 60 * 1000)
        }
    }));
    app.use(app.router);
    app.use(express.static(path.join(__dirname, 'public')));
});

app.configure('development', function(){
    app.set('port', process.env.PORT || 3000);
    app.use(express.errorHandler());
});

app.configure('production', function(){
  app.set('port', process.env.PORT || 8080);
  app.use(express.errorHandler());
});

var loginCheck = function(req, res, next) {
    if(req.session.user)
    {
        next();
    }
    else
    {
        res.redirect('/login');
    }
};

app.get('/', loginCheck, routes.index);
app.get('/login', routes.login);

http.createServer(app).listen(app.get('port'), function(){
  console.log("Express server listening on port " + app.get('port'));
});

index.jade

extends layout

block content
    .container
        h1= title
        p Welcome to #{title}
        #container

index.js

var model = require('../models/user.js'),
    User  = model.User;

var TITLE = 'My Site';

exports.index = function(req, res){
    res.render('index', { title: TITLE });
};

exports.login = function(req, res){

    var email    = req.query.email;
    var password = req.query.password;

    var query = { "email": email, "password": password };

    User.find(query, function(err, data) {
        if(err)
        {
            console.log(err);
        }
        if (data == "")
        {
            res.render('login', { title: TITLE });
        }
        else
        {
            req.session.user = email;
            res.redirect('/');
        }
    });
};

layout.jade

doctype 5
html
    head
        title= title
        link(rel='stylesheet', href='/stylesheets/bootstrap.min.css')
        link(rel='stylesheet', href='/stylesheets/bootstrap-responsive.min.css')
        link(rel='stylesheet', href='/stylesheets/todc-bootstrap.css')
        script(src="/javascripts/jquery-1.8.2.min.js", type="text/javascript")
        script(src="/javascripts/jquery-ui-1.8.22.custom.min.js", type="text/javascript")
        script(src="/javascripts/bootstrap.min.js", type="text/javascript")
    body
        .navbar.navbar-inverse.navbar-fixed-top
            .navbar-inner
                .container
                    button.btn.btn-navbar(type='button',data-toggle='collapse',data-target='.nav-collapse')
                        span.icon-bar
                        span.icon-bar
                        span.icon-bar
                    .nav-collapse.collapse
                        ul.nav
                            li.active
                                a(href='#') Home
                            li
                                a(href='/user') User
                            li
                                a(href='/admin') Admin
         block content

login.jade

extends login_layout

block content
    .container
        .hero-unit
            .row-fluid
                .span9
                    h2 簡易ログイン画面
                    h1= title
                .span3
                    form(action='/login')
                        input(type='text',name='email',placeholder='Email')
                        input(type='password',name='password',placeholder='Password')
                        label.checkbox.gray ログイン状態を保存
                            input(type='checkbox')
                        button.btn.btn-primary(type='submit') ログイン

login_layout.jade

doctype 5
html
    head
        title= title
        link(rel='stylesheet', href='/stylesheets/bootstrap.min.css')
        link(rel='stylesheet', href='/stylesheets/bootstrap-responsive.min.css')
        link(rel='stylesheet', href='/stylesheets/todc-bootstrap.css')
        script(src="/javascripts/jquery-1.8.2.min.js", type="text/javascript")
        script(src="/javascripts/jquery-ui-1.8.22.custom.min.js", type="text/javascript")
        script(src="/javascripts/bootstrap.min.js", type="text/javascript")
    body
        .navbar.navbar-inverse.navbar-fixed-top
            .navbar-inner
                .container
                    button.btn.btn-navbar(type='button',data-toggle='collapse',data-target='.nav-collapse')
                        span.icon-bar
                        span.icon-bar
                        span.icon-bar
                    .nav-collapse.collapse
                        ul.nav
                            li.active
                                a(href='#') Home
         block content

user.js

var domain = (process.env.NODE_ENV === 'production')?'10.0.82.198':'localhost';

var mongoose = require('mongoose');
var url = 'mongodb://' + domain + '/user';
var db  = mongoose.createConnection(url, function(err, res){
    if(err)
    {
        console.log('Error connected: ' + url + ' - ' + err);
    }
    else
    {
        console.log('Success connected: ' + url);
    }
});
// Modelの定義
var UserSchema = new mongoose.Schema({
    email    : String,
    password  : String
},{collection: 'info'});

exports.User = db.model('User', UserSchema);