Facebook canvas应用程序身份验证重定向到我的域

Question

I tried several approaches, for eg. here with no luck. I'm using their facebook php sdk .

What happens now is that the app gets redirected to my site after getting authenticated.

<?php 
require_once 'php-sdk/facebook.php';
$app_id = "***";
$app_secret = "***";
$facebook = new Facebook(array(
        'appId'=> $app_id,
        'secret' => $app_secret,
        'cookie' => true
));
$user = $facebook->getUser();
if(!$user)
{
    $auth_url = $facebook->getLoginUrl(array('scope' => 'email'));
    echo("<script> top.location.href='" . $auth_url . "'</script>");
}
?>

I tried replacing auth_url with:

$auth_url = $facebook->getLoginUrl(array('scope' => 'email',
'redirect_uri' => 'http://apps.facebook.com/ridetogether'));

but the prompt told me that the redirect_url is not owned by me:

An error occurred with Ride Together. Please try again later.

API Error Code: 191
API Error Description: The specified URL is not owned by the application
Error Message: Invalid redirect_uri: Given URL is not allowed by the Application configuration.

What else can I do to just redirect back to the canvas app inside facebook?

Answer 1

API Error Code: 191 API Error Description: The specified URL is not owned by the application Error Message: Invalid redirect_uri: Given URL is not allowed by the Application configuration.

Is your namespace/canvas page correct at your application setting? You might have to double check that again.

Answer 2

You need to specify a specific page on your domain to redirect to, like this

$params = array(
  'scope' => 'email',
  'redirect_uri' => $authPageURL,
);

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

Then that page needs to redirect to your canvas URL using a 301. So create a page called auth.php or something that has this in it

if(isset($_REQUEST['error_reason']))
{
    header('Location: '.$auth_error_page);
}
else 
{       
    header('Location: '.$FB_canvas_page);
}

Then use that page as the redirect URI.