从auth对话框登录后重定向到Facebook应用程序

Question

I got some problem with my testing app

$params = array(
  'scope' => 'read_stream, publish_stream'
);

$loginUrl = $facebook->getLoginUrl($params);
echo "<script type='text/javascript'>top.location.href = '$loginUrl';</script>";

This is the code I use to send user who has not logged in yet to login via facebook auth dialog. The problem is after login using facebook auth dialog user will be redirected to my site which is not in facebook app.

How can I send user back to facebook app after login using auth dialog ?

Please help

Answer 1

You can use the redirect_uri parameter of getLoginUrl() to tell facebook where you want to send the user after authorization ends (let it be success or failure).

There's a number of restrictions on what you can use there, basically you got three options:

1. URL under your application's domain.
2. The canvas path of the application (if it has one): https://apps.facebook.com/YOUR_APP_NAMESPACE
3. Any page url that has your application installed: https://www.facebook.com/PAGE_USERNAME/app_YOUR_APP_ID

By default, the php sdk takes the current url as redirect_uri . The documentation about these are under the oauth dialog's documentation of the same parameter.

Answer 2

Was google-ing about the same issue and found a solution,so thought might as well answer her.

simply add the following code in the main page.

$config['appBaseUrl'] = "http://apps.facebook.com/your_app_name/";

if(isset($_GET['code']))
{
     header("location:" . $config['appBaseUrl']);
     exit;
}

$config is the array that i pass while creating the facebook object. In this context,its not necessary to create an array though.