13

我正在使用护照 JS、快递和猫鼬制作 API。当我在同一个域中测试它时，它会保持会话并且工作正常。但是在跨域中它失败了。任何线索我如何使用相同的配置在跨域中维护会话。以下是代码

 allowCrossDomain = function(req, res, next) {
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
    res.header("Access-Control-Allow-Headers", req.headers["access-control-request-headers"]);
    // res.header("Access-Control-Allow-Credentials", "true");
    if ("OPTIONS" == req.method) {
        res.send(200);
    } else {
        next();
    }

  //allow all crossDomain request
app.use(allowCrossDomain);

//session handling
app.use(express.cookieParser("gallery"));
app.use(express.session());
app.use(passport.initialize());
app.use(passport.session());

app.use(function(req, res, next) {
    // check if client sent cookie
    var cookie = req.cookies.cokkieName;
    if (cookie === undefined) {
        //set up cookie here by a random number
        });
    }
    next(); // <-- important!
});
passport.use(new LocalStrategy({
    usernameField: "email"
},
function(email, password, done) {
    User.authenticate(email, password, function(err, reply) {
       //authenticate user and call the callback
            return done(err, false);

    });
}));


passport.serializeUser(function(user, done) {
return done(null, user._id);
});


passport.deserializeUser(function(id, done) {
//find user via id and return the user details
return done(null, user._id);
});

   app.post("/login", function(req, res, next) {
    passport.authenticate("local",
        function(err, data, info) {
            //custom callback
            user.getProfile(req, res, next, err, data, info);
        })(req, res, next);
});
4

3 回答 3

12

我遇到了同样的问题。在快速应用程序中配置任何内容之前，请使用以下（完全相同）设置跨域响应的标头：

app.use(function(req, res, next) {
res.header('Access-Control-Allow-Credentials', true);
res.header('Access-Control-Allow-Origin', req.headers.origin);
res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE');
res.header('Access-Control-Allow-Headers', 'X-Requested-With, X-HTTP-Method-Override, Content-Type, Accept');
if ('OPTIONS' == req.method) {
     res.send(200);
 } else {
     next();
 }
});

这个对我有用。祝你好运！

于 2013-11-26T14:08:26.437 回答
6

根据 Sriharsha 的回答：

  • 放res.header("Access-Control-Allow-Credentials", "true");

  • 确保在客户端调用中传递凭据。例如对于 AJAX，将其添加到您的调用中：xhrFields: {withCredentials: true},

此外：

  • 不要将通配符用于带有凭据请求的 Access-Control-Allow-Origin

    正如MDN 上所解释的：

    响应凭据请求时，服务器必须指定域，并且不能使用通配符

我使用这个文件，并从我的主模块调用它require("./enable-cors.js")(app);

// enable-cors.js
module.exports = function(app) {

    var methodOverride = require('method-override')
    app.use(methodOverride());
    var allowCrossDomain = function(req, res, next) {
        res.header('Access-Control-Allow-Credentials', true);
        res.header('Access-Control-Allow-Origin', req.headers.origin);
        res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE');
        res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization');

        // intercept OPTIONS method
        if ('OPTIONS' == req.method) {
            res.send(200);
        }
        else {
            next();
        }
    };
    app.use(allowCrossDomain);
    // Built upon: http://cuppster.com/2012/04/10/cors-middleware-for-node-js-and-express/#sthash.WdJmNaRA.dpuf

};
于 2014-10-17T01:49:49.050 回答
2

通过设置Access-Control-Allow-Credentials标头允许共享凭据。（我不知道你为什么在你的代码中评论）

res.header("Access-Control-Allow-Credentials", "true");

然后通过 XHR 对象从 javascript传递凭据。

xhr.withCredentials = true;
于 2013-09-27T06:06:14.220 回答