为什么passport.authenticate（passport-saml）在身份验证后返回“stripPrefix”typeError？

Question

我有一个使用Express 4和Passport-saml进行身份验证（使用OneLogin）的NodeJS上构建的小型Web应用程序。能够在passport.authenticate()到然而来电OneLogin的SAML测试连接端点，并得到一个授权返回有效的会话ID，下面的类型错误被抛出：

TypeError: Cannot read property 'stripPrefix' of undefined 
    at SAML.processValidlySignedAssertion (/Users/johnellis/supdash/node_modules/passport-saml/lib/passport-saml/saml.js:653:42) 
    at /Users/johnellis/supdash/node_modules/passport-saml/lib/passport-saml/saml.js:548:19 
    at _fulfilled (/Users/johnellis/supdash/node_modules/q/q.js:794:54) 
    at self.promiseDispatch.done (/Users/johnellis/supdash/node_modules/q/q.js:823:30) 
    at Promise.promise.promiseDispatch (/Users/johnellis/supdash/node_modules/q/q.js:756:13) 
    at /Users/johnellis/supdash/node_modules/q/q.js:516:49 
    at flush (/Users/johnellis/supdash/node_modules/q/q.js:110:17) 
    at _combinedTickCallback (internal/process/next_tick.js:67:7) 
    at process._tickCallback (internal/process/next_tick.js:98:9) 

这里是主App.js

var express = require('express'), 
    app = express(), 
    https = require('https'), 
    mysql = require('mysql'), 
    passport = require('passport'), 
    ldapStrategy = require('passport-ldapauth').Strategy, 
    samlStrategy = require('passport-saml').Strategy, 
    LocalStrategy = require('passport-local').Strategy, 
    api = require(__dirname + '/server/routes/api'), 
    evapi = require(__dirname + '/server/routes/evapi'), 
    nsapi = require(__dirname + '/server/routes/nsapi'), 
    sugarapi = require(__dirname + '/server/routes/sugarapi'), 
    downloadsapi = require(__dirname + '/server/routes/downloadstats'), 
    home = require(__dirname + '/server/routes/home'), 
    companyoverview = require(__dirname + '/server/routes/companyoverview'), 
    hoops = require(__dirname + '/server/routes/hoops'), 
    oem = require(__dirname + '/server/routes/oem'), 
    tetra = require(__dirname + '/server/routes/tetra'), 
    productsupport = require(__dirname + '/server/routes/productsupport'), 
    dashboards = require(__dirname + '/server/routes/dashboards'), 
    auth = require(__dirname + '/server/routes/auth'), 
    users = require(__dirname + '/server/config/users'), 
    isLoggedIn = require('connect-ensure-login').ensureLoggedIn('/auth/login'), 
    flash = require('connect-flash'), 
    trello = require(__dirname+'/server/routes/trello'), 
    sharepointapi = require(__dirname+'/server/routes/sharepoint'), 
    fs = require('fs'), 
    sp = require('spscript'); 

app.set('view engine', 'pug'); 

/*********MIDDLEWARE*********/ 
//logging, parsing, and session handling 
//app.use(require('morgan')('combined')); 
app.use(require('cookie-parser')()); 
app.use(require('body-parser').urlencoded({ extended: true })); 
app.use(require('express-session')({ secret: 'secret', resave: false, saveUninitialized: false, cookie:{expires:new Date(25340230000000)} })) 

//static serves up javascript and css files 
app.use('/static', express.static(__dirname + '/public')); 

//passport 
passport.use(new samlStrategy(
    { 
     callbackUrl:'https://localhost:4433/auth/login', 
     entryPoint: 'https://techsoft3d.onelogin.com/trust/saml2/http-post/sso/123456', 
     issuer:'passport-saml', 
     signatureAlgorithm:'sha1', 
     cert: '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' 
    }, 
    function(profile, done){ 
     console.log('test') 
     return done(null,profile); 
    } 
)); 

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

passport.deserializeUser(function(user,done){ 
    done(null,user); 
}); 

app.use(passport.initialize()); 
app.use(passport.session()); 
app.use(flash()); 


//external APIs 
app.use('/api',isLoggedIn, api); 
app.use('/evapi',isLoggedIn, evapi); 
app.use('/nsapi', isLoggedIn, nsapi); 
app.use('/sugarapi',isLoggedIn, sugarapi); 
app.use('/downloads', isLoggedIn, downloadsapi); 
app.use ('/trello',isLoggedIn,trello); 
app.use('/sharepointapi',isLoggedIn,sharepointapi); 

//page routes 
app.use('/', home); 
app.use('/companyoverview', isLoggedIn,companyoverview); 
app.use('/hoops', isLoggedIn,hoops); 
app.use('/oem', isLoggedIn,oem); 
app.use('/tetra', isLoggedIn,tetra); 
app.use('/productsupport', isLoggedIn,productsupport); 
app.use('/dashboards', isLoggedIn,dashboards); 
app.use('/auth', auth); 

//404 and 500s 
app.use(function(req, res) { res.render('404') }); 
//app.use(function(error, req, res, next) { res.render('500') }); 

var options = { 
    key:fs.readFileSync(__dirname+'/path/to/key.pem'), 
    cert:fs.readFileSync(__dirname+'/path/to/key.pem') 
    }; 

var secureServer = https.createServer(options,app).listen(4433, function() { 
    console.log('Reporting Dashboard Started: 4433'); 
}); 

auth.js（用于登录页面和身份验证的路由）

var express = require('express'); 
var passport = require('passport'); 
//var LocalStrategy = require('passport-local').Strategy; 
//var ldapStrategy = require('passport-ldapauth').Strategy; 
//const samlStrategy = require('passport-saml').Strategy; 

module.exports = (function(){ 
    'use strict'; 
    var router = express.Router(); 

    router.get('/login', function(request, response) { response.render('login') }); 

    router.post('/login', 
     passport.authenticate('saml',{ 
      failureRedirect:'/auth/login', 
      failureFlash: false 
     }), 
     function(request,response){ 
      response.redirect('/home'); 
     }); 

    router.get('/logout', 
     function(request, response) { 
      request.logout(); 
      response.redirect('/'); 
     }); 

    return router; 
})(); 

我试图改变OneLogin连接器利用加密断言和签署响应，很能授权的反应，但我不能让过去passport.authenticate()由于错误。

我该如何绕过此错误，或b）修改我的SAML请求，以便使authenticate（）方法正常工作？

任何和所有的帮助表示赞赏。

Answer 1

我能够通过更新xml2js包来解决这个问题，不幸的是，我不完全确定它为什么不起作用。