如何为Passport策略callbackURL设置当前主机？

Question

我使用Passport-Linkedin策略为Passport with Express,允许用户使用他们的LinkedIn个人资料登录.

我有以下代码:

passport.use(new LinkedInStrategy({
    consumerKey: config.linkedin.LINKEDIN_API_KEY,
    consumerSecret: config.linkedin.LINKEDIN_SECRET_KEY,
    callbackURL: "http://localhost:3000/auth/linkedin/callback"
  },
  function(token, tokenSecret, profile, done) {
    // asynchronous verification, for effect...
    process.nextTick(function () {

      // To keep the example simple, the user's LinkedIn profile is returned to
      // represent the logged-in user.  In a typical application, you would want
      // to associate the LinkedIn account with a user record in your database,
      // and return that user instead.
      return done(null, profile);
    });
  }
));

在第4行,我必须手动设置完整的回调URL.我有一个用于生产的字符串和一个用于开发的字符串,但我的URL不断变化,端口也是如此(我使用2台机器进行开发).

如何http://localhost:3000自动设置URL()的第一部分？有没有的属性express或app将允许我这样做？我需要求助app.use(function(req, res){});吗？

谢谢!

Answer 1

旧问题,可能回答仅适用于较新版本.但是,如果有人遇到这个问题,就像我一样,解决办法就是不在以下内容中指定主机名callbackURL:

passport.use(new LinkedInStrategy({
    consumerKey: config.linkedin.LINKEDIN_API_KEY,
    consumerSecret: config.linkedin.LINKEDIN_SECRET_KEY,
    callbackURL: "/auth/linkedin/callback"
  },

为了使其能够用于heroku https重定向,我们必须x-forwarded-protocol通过信任代理来告诉系统信任标头:

passport.use(new LinkedInStrategy({
    consumerKey: config.linkedin.LINKEDIN_API_KEY,
    consumerSecret: config.linkedin.LINKEDIN_SECRET_KEY,
    callbackURL: "/auth/linkedin/callback",
    proxy: true
  },