Javascript express csurf（csrf中间件）在angularjs中不使用XSRF

Express和Angular都有自己的csrf中间件。我根本无法让他们工作，而且互联网上似乎也没有任何关于这方面的连贯指南。我的理解是express 4.0使用csurf作为其csrf中间件，我必须在angularjs上设置

X-XSRF-TOKEN

关于如何做到这一点，有一些零散的信息，有时会产生冲突：

但我已经试过了，但都不管用。My

\u csrf

在Angular clientside上总是

未定义

，并且csurf总是给出

成功

，尽管客户端没有给出csrf令牌

此外，我正在使用

expressjwt

来保持用户会话，因此我不确定这是否会干扰

cookie会话（curf要求）

以下是我的简单angular/express应用程序，用于使用csrf处理寄存器（不工作）：

angular app.js

var app = angular.module('app', ['ngCookies', 'ui.router']);

app.config(function($stateProvider) {
    $stateProvider.state('register', {
        url: '/register',
        controller: 'RegisterCtrl',
        templateUrl: 'views/register.html'
    });
});

// register csrf
app.run(['$http', '$cookies', function($http, $cookies) {
    $http.defaults.headers.post['X-XSRF-TOKEN'] = $cookies.csrftoken;
}]);

// controller
app.controller('RegisterCtrl', ['$scope', '$cookies', '$http', 
    function($scope, $cookies, $http) {
        $scope.data = { email: "", password: "", _csrf: $cookies._csrf};

        $scope.submitForm = function() {
            // This will alert 'undefined'
            alert("This is csrf token: " + $scope.data._csrf);

            $http.post('/register', data).success(function(done) {
               console.log('success');
               var jwt_token = done["jwt_token"];
               // save token to local storage.
            }).error(function(err) {
               console.log('error');
            });
        }
    }
]);

var express = require('express');
var app = express();
var http = require('http').Server(app);
var expressJwt = require("express-jwt");
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({extended: true});
app.use(bodyParser.json());

// csrf setup
var session = require('cookie-session');
var csrf = require('csurf');
app.use(session({
    secret: 'keyboard cat'
}));
app.use(csrf());
// This part taken from csurf guide:
// https://github.com/expressjs/csurf
app.use(function(err, req, res, next) {
    if (err.code !== 'EBADCSRFTOKEN') return next(err)
    res.status(403);
    res.send('session has expired or form tampered with');
});

app.post("/login", function(req, res) {
    var email = req.body.email;
    var password = req.body.password;

    // save user to db ...
    var jwt_token = // create and sign jwt token to be given back to registered user

    res.json({"jwt_token": jwt_token});
});

http.listen(3000, function() {
   console.log("Express started");
});

var cookieParser = require('cookie-parser');
var session = require('cookie-session');
var csrf = require('csurf');
app.use(session({
    secret: 'keyboard cat'
}));
app.use(cookieParser('secret'));
app.use(csrf());
app.use(function (req, res, next) {
    res.cookie("XSRF-TOKEN",req.csrfToken());
    return next();
});

express app.js

var app = angular.module('app', ['ngCookies', 'ui.router']);

app.config(function($stateProvider) {
    $stateProvider.state('register', {
        url: '/register',
        controller: 'RegisterCtrl',
        templateUrl: 'views/register.html'
    });
});

// register csrf
app.run(['$http', '$cookies', function($http, $cookies) {
    $http.defaults.headers.post['X-XSRF-TOKEN'] = $cookies.csrftoken;
}]);

// controller
app.controller('RegisterCtrl', ['$scope', '$cookies', '$http', 
    function($scope, $cookies, $http) {
        $scope.data = { email: "", password: "", _csrf: $cookies._csrf};

        $scope.submitForm = function() {
            // This will alert 'undefined'
            alert("This is csrf token: " + $scope.data._csrf);

            $http.post('/register', data).success(function(done) {
               console.log('success');
               var jwt_token = done["jwt_token"];
               // save token to local storage.
            }).error(function(err) {
               console.log('error');
            });
        }
    }
]);

var express = require('express');
var app = express();
var http = require('http').Server(app);
var expressJwt = require("express-jwt");
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({extended: true});
app.use(bodyParser.json());

// csrf setup
var session = require('cookie-session');
var csrf = require('csurf');
app.use(session({
    secret: 'keyboard cat'
}));
app.use(csrf());
// This part taken from csurf guide:
// https://github.com/expressjs/csurf
app.use(function(err, req, res, next) {
    if (err.code !== 'EBADCSRFTOKEN') return next(err)
    res.status(403);
    res.send('session has expired or form tampered with');
});

app.post("/login", function(req, res) {
    var email = req.body.email;
    var password = req.body.password;

    // save user to db ...
    var jwt_token = // create and sign jwt token to be given back to registered user

    res.json({"jwt_token": jwt_token});
});

http.listen(3000, function() {
   console.log("Express started");
});

var cookieParser = require('cookie-parser');
var session = require('cookie-session');
var csrf = require('csurf');
app.use(session({
    secret: 'keyboard cat'
}));
app.use(cookieParser('secret'));
app.use(csrf());
app.use(function (req, res, next) {
    res.cookie("XSRF-TOKEN",req.csrfToken());
    return next();
});

现在，如果我提交注册表，则
警报（）
将显示
\u csrf
未定义。在expressjs端，
app.post（'/login'）
一直运行，没有失败，即使csrf令牌应该是坏的（
undefined
，因为角度端的csrf不工作）。这表明
csurf
在快速端根本不工作

是否有人能提供一个深入的解释，说明如何在Express4.0中集成
csurf
，在Angular中集成xsrf，并让它们一起工作？
我在集成这两个方面也遇到了问题，并得出了以下结构（仅相关部分）：

express app.js

var app = angular.module('app', ['ngCookies', 'ui.router']);

app.config(function($stateProvider) {
    $stateProvider.state('register', {
        url: '/register',
        controller: 'RegisterCtrl',
        templateUrl: 'views/register.html'
    });
});

// register csrf
app.run(['$http', '$cookies', function($http, $cookies) {
    $http.defaults.headers.post['X-XSRF-TOKEN'] = $cookies.csrftoken;
}]);

// controller
app.controller('RegisterCtrl', ['$scope', '$cookies', '$http', 
    function($scope, $cookies, $http) {
        $scope.data = { email: "", password: "", _csrf: $cookies._csrf};

        $scope.submitForm = function() {
            // This will alert 'undefined'
            alert("This is csrf token: " + $scope.data._csrf);

            $http.post('/register', data).success(function(done) {
               console.log('success');
               var jwt_token = done["jwt_token"];
               // save token to local storage.
            }).error(function(err) {
               console.log('error');
            });
        }
    }
]);

var express = require('express');
var app = express();
var http = require('http').Server(app);
var expressJwt = require("express-jwt");
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({extended: true});
app.use(bodyParser.json());

// csrf setup
var session = require('cookie-session');
var csrf = require('csurf');
app.use(session({
    secret: 'keyboard cat'
}));
app.use(csrf());
// This part taken from csurf guide:
// https://github.com/expressjs/csurf
app.use(function(err, req, res, next) {
    if (err.code !== 'EBADCSRFTOKEN') return next(err)
    res.status(403);
    res.send('session has expired or form tampered with');
});

app.post("/login", function(req, res) {
    var email = req.body.email;
    var password = req.body.password;

    // save user to db ...
    var jwt_token = // create and sign jwt token to be given back to registered user

    res.json({"jwt_token": jwt_token});
});

http.listen(3000, function() {
   console.log("Express started");
});

var cookieParser = require('cookie-parser');
var session = require('cookie-session');
var csrf = require('csurf');
app.use(session({
    secret: 'keyboard cat'
}));
app.use(cookieParser('secret'));
app.use(csrf());
app.use(function (req, res, next) {
    res.cookie("XSRF-TOKEN",req.csrfToken());
    return next();
});

在AngularJS方面，不需要更改。它自动识别XSRF-TOKEN

现在，为了解释上面的代码，我需要参考csurflib。它是一个处理所有csrf身份验证的中间件，但它实现了另一个csrf库，称为csrf。此csrf返回一个包含四个函数（secret、secretSync、create、verify）的“类”

csurf所做的是，当您调用其中间件时，通过secretSync方法生成一个秘密并存储在会话中。您可以通过变量req.session.csrfSecret访问它。但是，它不执行req.csrfToken方法，该方法使用此机密返回csrf令牌。要正确返回csrf令牌，需要在另一个中间件中调用它

另一件重要的事情是，返回cookie的名称必须是“XSRF-TOKEN”，而不是“_csrf”。因此，Angular会自动识别它，并将“X-XSRF-TOKEN”附加到HTTP请求中，该令牌由csurf中间件识别

希望能有帮助