Question

我正在使用Facebook SDK for JavaScript登录我的facebook应用程序我的网页，我有一个主登录页面。如何在用户登录后重定向用户。如果他们没有登录，则无法继续使用此页面。

https://developers.facebook.com/docs/facebook-login/login-flow-for-web

以下是网站上的脚本！在这个脚本中，我添加了一个重定向，但似乎没有用。

<script>
  window.fbAsyncInit = function() {
  FB.init({
    appId      : 'APP_ID',
    status     : true, // check login status
    cookie     : true, // enable cookies to allow the server to access the session
    xfbml      : true  // parse XFBML
  });

  // Here we subscribe to the auth.authResponseChange JavaScript event. This event is fired
  // for any authentication related change, such as login, logout or session refresh. This means that
  // whenever someone who was previously logged out tries to log in again, the correct case below 
  // will be handled. 
  FB.Event.subscribe('auth.authResponseChange', function(response) {
    // Here we specify what we do with the response anytime this event occurs. 
    if (response.status === 'connected') {
       window.location = "http://www.google.com/" <!-- This is what i tried -->
      // The response object is returned with a status field that lets the app know the current
      // login status of the person. In this case, we're handling the situation where they 
      // have logged in to the app.
      testAPI();
    } else if (response.status === 'not_authorized') {
      // In this case, the person is logged into Facebook, but not into the app, so we call
      // FB.login() to prompt them to do so. 
      // In real-life usage, you wouldn't want to immediately prompt someone to login 
      // like this, for two reasons:
      // (1) JavaScript created popup windows are blocked by most browsers unless they 
      // result from direct interaction from people using the app (such as a mouse click)
      // (2) it is a bad experience to be continually prompted to login upon page load.
      FB.login();
    } else {
      // In this case, the person is not logged into Facebook, so we call the login() 
      // function to prompt them to do so. Note that at this stage there is no indication
      // of whether they are logged into the app. If they aren't then they'll see the Login
      // dialog right after they log in to Facebook. 
      // The same caveats as above apply to the FB.login() call here.
      FB.login();
    }
  });
  };

  // Load the SDK asynchronously
  (function(d){
   var js, id = 'facebook-jssdk', ref = d.getElementsByTagName('script')[0];
   if (d.getElementById(id)) {return;}
   js = d.createElement('script'); js.id = id; js.async = true;
   js.src = "//connect.facebook.net/en_US/all.js";
   ref.parentNode.insertBefore(js, ref);
  }(document));

  // Here we run a very simple test of the Graph API after login is successful. 
  // This testAPI() function is only called in those cases. 
  function testAPI() {
    console.log('Welcome!  Fetching your information.... ');
    FB.api('/me', function(response) {
      console.log('Good to see you, ' + response.name + '.');
    });
  }
</script>

- 在if（response.status ==='connected'）下{添加了窗口重定向，但似乎根本没用！。我尝试添加此

FB.login(function(response) {
    if (response.authResponse) {
        // The person logged into your app
        window.location = "http://www.google.com/"
    } else {
        // The person cancelled the login dialog
        // Nothing happens
    }
});

当我添加此功能时，这不起作用这是我后来添加到登录流程

的内容

$params = array(
  'scope' => 'read_stream, friends_likes, user_website, user_checkins',
  'redirect_uri' => 'https://www.mywebsite.com/blablabla'
);

$loginUrl = $facebook->getLoginUrl($params);

我添加了几个范围并将其与登录流程一起使用。它仍然不会在登录后将用户重定向到另一个页面，也不会在登录失败时重定向用户

Answer 1

这可能与浏览器中的安全设置（CORS）有关，请参阅https://developer.mozilla.org/en-US/docs/Web/API/Window.location#Example_.231.3A_Navigate_to_a_new_page

这里有一些答案：Redirect from Facebook canvas page to website

此外，您应该能够按照此处所述设置redirect_uri：https://developers.facebook.com/docs/reference/php/facebook-getLoginUrl/

用facebook登录后重定向用户

我正在使用Facebook SDK for JavaScript登录我的facebook应用程序我的网页，我有一个主登录页面。如何在用户登录后重定向用户。如果他们没有登录，则无法继续使用此页面。

1 个答案: