【问题标题】:React axios 401 unauthorized反应 axios 401 未经授权
【发布时间】:2019-07-10 20:10:27
【问题描述】:

我在尝试对用户进行身份验证时收到 401 错误。只是为了给出上下文,React 正在使用 Express 服务器,并使用 Passport 进行身份验证。 React 的端口是8001,Express 服务器的端口是8000。

GET /api/users/user 401 2.167 毫秒 - 59

其他获取请求确实有效。例如

反应

export const getUser = () => {

    return async (dispatch) =>{
        Axios.get('/api/users/user')
        .then( (res) => {
            console.log(res.data);
            localStorage.setItem('auth', res.data.authenticated);
            dispatch({type: GET_USER, res});
        }).catch( (err) => {
            console.log(err);
        })
    }
}

axios

import Axios from 'axios'

let AxiosInstance = Axios.create({
  baseURL: process.env.REACT_APP_BASE_URL, // http://localhost:8000
  withCredentials: true,
  headers: {
    'Content-Type': 'application/json',
  },

})

// AxiosInstance.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded'

AxiosInstance.interceptors.response.use(function(response) {
  return response;
})

export default AxiosInstance

路线/用户

router.get('/user', (req, res, next) => {
    if(req.user) {
        return res.status(200).json({
            user: req.user,
            authenticated: true
        });
    } else {
        return res.status(401).json({
            error: 'User is not authenticated',
            authenticated: false
        });
    }
});

文件app.js

var express = require('express');
var app = express();
var userRoute = require('./routes/users');
var postRoute  = require('./routes/posts');
var bodyParser = require('body-parser');
var logger = require('morgan');
var models = require('./models');
var User = require('./models/user');
var session = require('express-session');
var cookieParser = require('cookie-parser') ;
var cookieSession = require('cookie-session');
var dotenv = require('dotenv');
var env = dotenv.config();
var cors = require('cors');
const port = process.env.PORT || 8000;
const passport = require('passport');
const path = require('path');
const allowOrigin = process.env.ALLOW_ORIGIN || '*'

// CORS Middleware

if (!process.env.PORT) {
  require('dotenv').config()
}

if (!process.env.PORT) {
  console.log('[api][port] 8000 set as default')
  console.log('[api][header] Access-Control-Allow-Origin: * set as default')
} else {
  console.log('[api][node] Loaded ENV vars from .env file')
  console.log(`[api][port] ${process.env.PORT}`)
  console.log(`[api][header] Access-Control-Allow-Origin: ${process.env.ALLOW_ORIGIN}`)
}


app.use(logger('dev'));
app.use(express.static(path.join(__dirname, 'public')));
app.use(cookieParser());
app.use(bodyParser());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false })); 




app.use(cors({
  origin: process.env.ALLOW_ORIGIN,
  credentials: true,
  allowedHeaders: 'X-Requested-With, Content-Type, Authorization',
  methods: 'GET, POST, PATCH, PUT, POST, DELETE, OPTIONS'
}))

app.use(session({
  secret : 'nodeauthsecret',
  resave: false,
 saveUninitialized: true,

}));

app.use(passport.initialize());
app.use(passport.session());
require('./config/passport')(passport);
require('./config/passport-github')(passport);

app.use(function(req, res, next) {
  res.locals.user = req.user; // This is the important line
  console.log(res.locals.user);
  next();
});
// app.use(function(req, res, next) {
//   res.setHeader("Access-Control-Allow-Origin", "*");
//   res.setHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
// });

app.use('/api/users', userRoute )

app.use('/api/posts',  postRoute )

app.listen(port, () => {
  console.log('[api][listen] http://localhost:' + port)
})

passport.js

const BCRYPT_SALT_ROUNDS = 12;

const passport = require('passport'),

  bcrypt = require('bcrypt'),
  JWTstrategy = require('passport-jwt').Strategy,
  ExtractJWT = require('passport-jwt').ExtractJwt,
  Sequelize = require('sequelize'),
  Op = Sequelize.Op;

module.exports = function(passport, user) {
  const models = require( '../models/index');
  const localStrategy = require('passport-local').Strategy;
// serialize session, only store user id in the session information
  passport.serializeUser(function(user, done) {
    done(null, user.id);
  });

  // from the user id, figure out who the user is...
  passport.deserializeUser(function(userId, done){
    models.User
      .find({ where: { id: userId } })
      .then(function(user){
        done(null, user);
      }).catch(function(err){
        done(err, null);
      });
  });

  passport.use(
    'register',
    new localStrategy(
      {
        usernameField: 'username',
        passwordField: 'password',
        passReqToCallback: true,
        session: false,
      },
      (req, username, password, done) => {
        try {
           models.User.findOne({
            where: {
              [Op.or]: [
                {
                  username: username,
                },
                { email: req.body.email },
              ],
            },
          }).then(user => {
            if (user != null) {
              console.log('username or email already taken');
              return done(null, false, {
                message: 'username or email already taken',
              });
            } else {
              bcrypt.hash(password, BCRYPT_SALT_ROUNDS).then(hashedPassword => {
                models.User.create({
                  username: req.body.username,
                  password: hashedPassword,
                  email: req.body.email
                }).then(user => {
                  console.log('user created');
                  return done(null, user);
                });
              });
            }
          });
        } catch (err) {
          done(err);
        }
      },
    ),
  );



passport.use(
  'login',
  new localStrategy(
    {
      usernameField: 'username',
      passwordField: 'password',
      session: false
    },
    (username, password, done, req) => {
      try {
        models.User.findOne({
          where: {
            [Op.or]: [
              {
                username: username,
              }
            ],
          },
        }).then(user => {
          if (user === null) {
            return done(null, false, { message: 'Username doesn\'t exist' });

          } else {
            bcrypt.compare(password, user.password).then(response => {
              if (response !== true) {
                console.log('passwords do not match');
                return done(null, false, { message: 'passwords do not match' });
              }

              console.log('user found & authenticated');
              // note the return needed with passport local - remove this return for passport JWT
              return done(null, user);
            });


          }
        });
      } catch (err) {
        done(err);
      }
    },
  ),
);

const opts = {
  jwtFromRequest: ExtractJWT.fromAuthHeaderWithScheme('JWT'),
  secretOrKey: process.env.jwtsecret,
};




passport.use(
  'jwt',
  new JWTstrategy(opts, (jwt_payload, done) => {
    try {
       models.User.findOne({
        where: {
          username: jwt_payload._id,
        },
      }).then(user => {
        if (user) {
          console.log('user found in db in passport');
          // note the return removed with passport JWT - add this return for passport local
          done(null, user);
          // console.log(user);
        } else {
          console.log('user not found in db');
          done(null, false);
        }
      });
    } catch (err) {
      done(err);
    }
  }),
);


}

【问题讨论】:

    标签: javascript node.js reactjs axios passport.js


    【解决方案1】:

    您正面临这个问题,因为您的 req.user 是空的,这就是它转到 else 语句并返回您要返回的 Unauthorized 的原因。

    检查您的服务器控制台是否正在打印任何内容console.log(res.locals.user);

    发送您的auth token 带有这样的标题

    headers : {
      'Content-Type' : 'application/json',
      'Accept' : 'application/json',
      'Authorization' : 'Bearer <token_here>'
    }
    

    更新

    您的请求将始终返回401 unauthorized。

    https://github.com/manjurulhoque/nodejs-ecommerce-api/blob/master/routes/users.js#L105

    检查我的代码。要获得登录用户,您必须使用

    passport.authenticate('jwt', { session: false })
    

    【讨论】:

    • res.locals.user 中没有显示任何内容,它曾经可以工作,但我更改了 react 前端的代理设置。它使用jwtFromRequest: ExtractJWT.fromAuthHeaderWithScheme('JWT')
    • 我的下一个问题是我将如何将令牌从 express 传递以做出反应,以便我可以将其插入 Bearer 旁边?
    • 您必须将令牌从 react 传递给 express,express 将检查过期日期并使用该令牌返回用户。
    • 我更新了上面的代码,并以相反的方式设置它。我有点困惑,我将使用您的解决方案来解决这个问题。谢谢。
    • 我认为你做错了。 Token 应该从客户端发送到服务器。而你的保存在 localStorage 中。服务器将验证令牌并发送您所需的信息。
    【解决方案2】:

    我认为您需要在标题中设置Authorization,如MDN中所述

    HTTP 授权请求标头包含用于 使用服务器验证用户代理,通常在服务器完成之后 回复 401 Unauthorized status 和 WWW-Authenticate 标题。

    let ExtractJwt = passportJWT.ExtractJwt;  
    let Strategy = passportJWT.Strategy;  
    let opts = {}
    opts.secretOrKey= cfg.jwtSecret
    opts.jwtFromRequest= ExtractJwt.fromAuthHeaderWithScheme(cfg.authScheme)
    
    new JWTstrategy(
    ...
    return {
            initialize: function() {
                return passport.initialize();
            },
            authenticate: function() {
                return passport.authenticate(cfg.authScheme, cfg.jwtSession);
            }
        };
    )
    

    【讨论】:

    • 'Authorization' : '&lt;type&gt; &lt;credentials&gt;' 我就这样吗?
    • 它使用jwtFromRequest: ExtractJWT.fromAuthHeaderWithScheme('JWT'), 我会更新代码。
    • so request.headers.authorization 会获取 jwt 令牌吗?顺便谢谢你的帮助 :)
    • 立即尝试调用ExtractJwt.fromAuthHeaderWithScheme(),然后在JWTstrategy 中返回以进行身份​​验证
    • 好的,让我试试这个。我将提供完整的护照代码,导致我有点困惑。
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