私は、いくつかの Node.js フレームワークの背後にある理論と規則のいくつかに苦労しています。Node.js は初めてです。基本的な残りの機能を実行するコントローラーのセットを定義する MVC フレームワークがあり、一部のコントローラールートで認証が必要なシナリオを設定しようとしています。認証されていない場合は、ログイン ページが表示されますが、ログイン後、以前に要求したページに戻ります。私はたくさんのチュートリアルを見てきましたし、StackOverflow に関するいくつかの質問を見てきましたが、問題は何かがクリックされていないことだと思います. 何が起こっているのかの背後にある理論の一部を説明して、おそらく私の問題の正しい方向に向けてくれることを願っています. 私のコードは以下です。私の本当の問題は私がしないことです' この next() パラダイムを本当に理解していません。たぶん、私はこれをすべて間違っており、間違った方法で考えています. ひょっとしたら、私にも良いアイデアを教えてくれるかもしれません。
編集：
======
解決策を見つけました。情報を入手してこの問題を解決しようとしている他の人のために、後で私の質問に答えます。
-- Server.js
/**
* Clancy server implementation (using Express)
*/
require('console-trace')({
always: true,
right: true,
colors: true
})
/**
* Include our server's needed objects.
**/
var express = require('express');
var _ = require('underscore');
var cons = require('consolidate');
passport = require('passport'),
LocalStrategy = require('passport-local').Strategy;
var db = require('./lib/db');
var colors = require('colors');
var Users = db.users;
var People = require('./controllers/People');
var Login = require('./controllers/Login');
/**
* This provides our MVC context object
**/
var app = express();
/**
* This is our router definition for the server
**/
app.engine('html', cons.underscore);
// set .html as the default extension
app.set('view engine', 'html');
app.set('views', __dirname + '/views');
/**
* Set up the server to allow static content, cookies, session, and
* parsing the server. Also, we initialize authentication and our
* routing mechanism.
*
*/
app.configure(function () {
app.use('/static', express.static(__dirname + "/webapp"));
app.use(express.cookieParser());
app.use(express.bodyParser());
app.use(express.session({
secret: 'keyboard cat'
}));
app.use(passport.initialize());
app.use(passport.session());
app.use(app.router);
});
/**
* This lets authentication know how it should store
* and grab users from a request to pass to a mapping
* function.
*/
passport.serializeUser(function (user, done) {
done(null, user._id);
});
passport.deserializeUser(function (id, done) {
Users.findOne({
_id: db.bson.ObjectID(id)
}, function (err, user) {
done(err, user);
});
});
/**
* This sets up which authentication strategies we support.
* as of right now, LocalStrategy (our own username/password)
* is all we support.
*
*/
passport.use(new LocalStrategy(
function (username, password, done) {
Users.findOne({
username: username
}, function (err, user) {
if (err) {
return done(err);
}
if (!user) {
return done(null, false, {
message: 'Incorrect username.'
});
}
if (!(user.password == password)) {
return done(null, false, {
message: 'Incorrect password.'
});
}
console.info(user.password + " " + password.yellow);
console.info(!(user.password == password).yellow);
console.info(user._id);
return done(null, user);
});
}));
/**
* Path mapping
*/
// Index mapping
app.get('/', function (req, resp) {
resp.render('index', {
title: "Welcome!"
});
});
// Allow login, and set up the dependency for passport.
Login.setPassport(passport);
app.get("/login", Login.loginForm);
app.get("/login/error", Login.loginForm);
app.post('/login', passport.authenticate('local', function (req, res, next) {
passport.authenticate('local', function (err, user, info) {
// This is the default destination upon successful login.
var redirectUrl = '/people';
if (err) {
return next(err);
}
if (!user) {
return res.redirect('/');
}
// If we have previously stored a redirectUrl, use that,
// otherwise, use the default.
if (req.session.redirectUrl) {
redirectUrl = req.session.redirectUrl;
req.session.redirectUrl = null;
}
req.logIn(user, function (err) {
if (err) {
return next(err);
}
});
res.redirect(redirectUrl);
})(req, res, next);
}));
app.get('/logout', Login.logout);
// People Controller has a dependency on the Passport library
People.setPassport(passport);
// These are our definitions for paths the People Controller can handle.
app.get("/people", People.list);
app.get("/people/:id", People.get);
// These are the error handler mappings.
app.use(function (req, res, next) {
// the status option, or res.statusCode = 404
// are equivalent, however with the option we
// get the "status" local available as well
res.render('404', {
status: 404,
url: req.url
});
});
app.use(function (err, req, res, next) {
// we may use properties of the error object
// here and next(err) appropriately, or if
// we possibly recovered from the error, simply next().
console.error(("ERROR: " + err.toString()).red);
res.render('500', {
status: err.status || 500,
error: err
});
});
app.listen(3000);
console.info('The Clancy server is listening on port: 3000'.green);
-- 人のコントローラー
/**
* People Controller
*/
var db = require('../lib/db');
var auth = require('../lib/authUtils');
/**
* People constructor.
* ===================
* The people constructor has dependencies on the database,
* and on the Passport middleware. The db object doesn't
* care about maintaining state, so we can just include that
* here, however the Passport plugin needs to have all of the
* stuff the server defines. So, it's passed in.
*/
function People(){
var passport;
}
People.prototype = {
list: function(req, resp){
auth.ensureAuth(req, resp);
console.info("user info: " + user._id);
resp.render('index', {
title: "User",
users: [1,2,3]
});
},
get: function(req, resp){
console.log('> get person' + req.params.id);
db.users.find( {_id: db.bson.ObjectID(id)}, function(err, users){
if(err || !users) console.log("No user found");
resp.send(users);
});
},
setPassport: function(pass){
this.passport = pass;
},
getPassport: function(){
return this.passport;
}
}
module.exports = new People();
-- ログイン コントローラ
/**
* People Controller
*/
/**
* Login constructor.
* ===================
* The Login constructor has dependencies on the Passport middleware.
* The db object doesn't care about maintaining state, so we can just
* include that here, however the Passport plugin needs to have all
* of the stuff the server defines. So, it's passed in.
*/
function Login(){
var passport;
}
var l = Login.prototype;
Login.prototype = {
loginForm: function(req, resp){
var url = require('url').parse(req.url, true);
console.info('url string: ' + url.pathname.yellow);
if(url.pathname === '/login/error')
{
resp.render('login', {
title: "Login to FormPickle.com",
message: "Your username or password was incorrect."
});
}
console.info('Trying to login'.yellow);
resp.render('login', {
title: "Login to FormPickle.com",
message: ""
});
},
setPassport: function(pass){
l.passport = pass;
},
getPassport: function(){
return l.passport;
},
logout: function(req, resp){
req.logout();
resp.render('logout');
}
}
module.exports = new Login();
-- DBミドルウェア
/**
* DB
*/
var databaseURI = "localhost:27017/clancy";
var collections = ["users", "forms"];
var db = require("mongojs").connect(databaseURI, collections);
module.exports = db;
-- AuthUtils.js
/***
* Define a middleware function for authenticated routes to store the original URL
*
*/
function Auth(){
};
Auth.prototype = {
ensureAuth: ensureAuthenticated(req, resp, next)
}
var ensureAuthenticated = function (req, res, next) {
if (req.isAuthenticated()) { return next(); }
// If the user is not authenticated, then we will start the authentication
// process. Before we do, let's store this originally requested URL in the
// session so we know where to return the user later.
req.session.redirectUrl = req.url;
// Resume normal authentication...
logger.info('User is not authenticated.');
req.flash("warn", "You must be logged-in to do that.");
res.redirect('/login');
}
module.exports = new Auth();
よろしくお願いします。StackOverflow のコミュニティが大好きです。新しい技術を学ぶとき、皆さんはいつもとても素晴らしいです。