Facebook签署请求问题 [英] Facebook signed request problem

问题描述

我想为我的Facebook页面写一个风扇，但它没有工作，我没有在网间找到任何帮助。

  require'facebook.php'; 
 
 $ app_id ='16850872653xxxx'; 
 $ app_secret ='xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'; 
 $ facebook = new Facebook（array（
'appId'=> $ app_id，
'secret'=> $ app_secret，
'cookie'=> true 
））; 
 
 $ signed_request = $ _REQUEST ['signed_request']; 
 
 // echo $ signed_request; 
 
 list（$ encoded_sig，$ payload）= explode（'。'，$ signed_request，2）; 
 
 
 //解码数据
 $ sig = base64_url_decode（$ encoded_sig）; 
 $ data = json_decode（base64_url_decode（$ payload），true）; 
 
 //检查sig 
 $ expected_sig = hash_hmac（'sha256'，$ payload，$ app_secret，$ raw = true）; 
 
函数base64_url_decode（$ input）{
 return base64_decode（strtr（$ input，'-_'，'+ /'））; 
} 
 
 if（$ signed_request-> page->喜欢）{
 echo此内容仅适用于粉丝！ 
} else {
 echo请点击Like按钮查看此标签！; 
} 
  

我正在使用此代码...但它只是跳到github，在那里我已经下载了facebook.php ....

有人看到这段代码有问题吗？

只需跳转到github并且json_decode不工作...

解决方案

您发送的代码有一些错误。这是我使用的，它的工作原理：

  if（isset（$ _ REQUEST ['signed_request']））{
 $ encoded_sig = null; 
 $ payload = null; 
 list（$ encoded_sig，$ payload）= explode（'。'，$ _REQUEST ['signed_request']，2）; 
 $ sig = base64_decode（strtr（$ encoded_sig，'-_'，'+ /'））; 
 $ data = json_decode（base64_decode（strtr（$ payload，'-_'，'+ /'），true））; 
 if（$ data-> page->喜欢）{
 echo此内容仅供粉丝使用！ 
} else {
 echo请点击Like按钮查看此标签！; 
} 
} 
  

不要在您的应用程序密钥上发布论坛，请尽快编辑您的帖子。

I want to write a fangate for my facebook page, but it didnt work and i doesnt find any help on the inter net

require 'facebook.php';

$app_id = '16850872653xxxx';
$app_secret = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx';
$facebook = new Facebook(array(
'appId' => $app_id,
'secret' => $app_secret,
'cookie' => true
));

$signed_request = $_REQUEST['signed_request'];

//echo $signed_request;

list($encoded_sig, $payload) = explode('.', $signed_request, 2); 


// decode the data
$sig = base64_url_decode($encoded_sig);
$data = json_decode(base64_url_decode($payload), true);

// check sig
$expected_sig = hash_hmac('sha256', $payload, $app_secret, $raw = true);

function base64_url_decode($input) {
return base64_decode(strtr($input, '-_', '+/'));
}

if($signed_request->page->liked) {
echo "This content is for Fans only!";
} else {
echo "Please click on the Like button to view this tab!";
}

I am using this code... but it just jumps to github where i have downloaded the facebook.php....

does anybody see a problem with this code?

the require just jumps to github and the json_decode doesnt work...

解决方案

There are a few errors with the code you sent. This is what I use, and it works:

if (isset($_REQUEST['signed_request'])) {
      $encoded_sig = null;
      $payload = null;
      list($encoded_sig, $payload) = explode('.', $_REQUEST['signed_request'], 2);
      $sig = base64_decode(strtr($encoded_sig, '-_', '+/'));
      $data = json_decode(base64_decode(strtr($payload, '-_', '+/'), true));
      if($data->page->liked) {
          echo "This content is for Fans only!";
        } else {
          echo "Please click on the Like button to view this tab!";
        }
    }

And don't post your application secret key on the forum, please edit your post as soon as possible.

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