1

我正在创建一个代码来使用 PHP SDK 在 facebook 上创建即时文章。我使用它创建了一个登录名,并添加了“public_profile、email、manage_pages、pages_show_list、pages_manage_instant_articles”权限。

当用户点击登录按钮时,它要求所有这些权限。如果用户是页面的管理员并且他使用它登录,他就能够在该页面上创建即时文章。但是,当具有该页面的编辑角色的用户尝试登录时,会要求他提供所有这些权限,即使他允许所有这些权限,他仍然无法创建即时文章。在错误日志中,有如下错误:

PHP 致命错误:未捕获的 Facebook\Exceptions\FacebookAuthorizationException:(#200)需要扩展权限:../facebook-php-sdk-v4-5.0.0/src/Facebook/Exceptions/FacebookResponseException.php:120 中的 pages_manage_instant_articles

在第一次登录时,编辑用户被要求提供所有权限,他批准了所有,但仍然出现此错误。现在,当他尝试再次登录时,不会要求他提供权限。我已经通过“/me/permissions”端点检查了编辑角色用户的权限。作为响应,“email、user_friends、pages_show_list 和 public_profile”权限的状态为“已授予”,但没有关于“manage_pages 和 pages_manage_instant_articles”权限的任何详细信息。

对于管理员角色用户,所有代码都可以正常工作,并且即时文章也使用 PHP SDK 创建,但此问题仅针对编辑角色用户。

这是我尝试过的代码,我没有在此处包含我的 app-id、app-secret、page-id 和 article-html:

   <?php
   session_start();
   $page_id = '{page-id}';
   $app_id='{app-id}';
   $app_secret='{app-secret}';

   require_once 'testing/facebook-php-sdk-v4-5.0.0/src/Facebook/autoload.php';

   if(!isset($_GET['user'])){
   ?>
   <!DOCTYPE html>
<html>
<head>
<title>Facebook Login JavaScript Example</title>
<meta charset="UTF-8">
</head>
<body>
<script>
  // This is called with the results from from FB.getLoginStatus().
  function statusChangeCallback(response) {
    console.log('statusChangeCallback');
    console.log(response);

    // The response object is returned with a status field that lets the
    // app know the current login status of the person.
    // Full docs on the response object can be found in the documentation
    // for FB.getLoginStatus().
    if (response.status === 'connected') {
      // Logged into your app and Facebook.
      //testAPI();
      var accessToken = response.authResponse.accessToken;
        console.log('access token -: '+accessToken);
        location.href="instant_article.php?user=logged_in";
    } else if (response.status === 'not_authorized') {
      // The person is logged into Facebook, but not your app.
      document.getElementById('status').innerHTML = 'Please log ' +
        'into this app.';
    } else {
      // The person is not logged into Facebook, so we're not sure if
      // they are logged into this app or not.
      document.getElementById('status').innerHTML = 'Please log ' +
        'into Facebook.';
    }
  }

  // This function is called when someone finishes with the Login
  // Button.  See the onlogin handler attached to it in the sample
  // code below.
  function checkLoginState() {
    FB.getLoginStatus(function(response) {
      statusChangeCallback(response);
    });
  }

  window.fbAsyncInit = function() {
  FB.init({
    appId      : <?= $app_id ?>,
    cookie     : true,  // enable cookies to allow the server to access the session
    xfbml      : true,  // parse social plugins on this page
    version    : 'v2.6' // use graph api version 2.5
  });

  // Now that we've initialized the JavaScript SDK, we call 
  // FB.getLoginStatus().  This function gets the state of the
  // person visiting this page and can return one of three states to
  // the callback you provide.  They can be:
  //
  // 1. Logged into your app ('connected')
  // 2. Logged into Facebook, but not your app ('not_authorized')
  // 3. Not logged into Facebook and can't tell if they are logged into
  //    your app or not.
  //
  // These three cases are handled in the callback function.

  FB.getLoginStatus(function(response) {
    statusChangeCallback(response);
  });

  };

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

</script>

<!--
  Below we include the Login Button social plugin. This button uses
  the JavaScript SDK to present a graphical Login button that triggers
  the FB.login() function when clicked.
-->

<fb:login-button scope="public_profile,email,manage_pages,pages_show_list,pages_manage_instant_articles" onlogin="checkLoginState();">
</fb:login-button>

<div id="status">
</div>
</body>
</html>
<?php
}else{
    $fb = new Facebook\Facebook([
      'app_id' => $app_id,
      'app_secret' => $app_secret,
      'default_graph_version' => 'v2.6',
      'default_access_token' => $app_id.'|'.$app_secret
    ]);
    $oAuth2Client = $fb->getOAuth2Client();

    $helper = $fb->getJavaScriptHelper();

    $sr = $helper->getSignedRequest();

    $user_id = $sr ? $sr->getUserId() : null;

    if ( $user_id ) {
        try {
            // Get the access token
            $accessToken = $helper->getAccessToken();
            $_SESSION['user_token'] = (string) $accessToken;
        } catch( Facebook\Exceptions\FacebookSDKException $e ) {
            // There was an error communicating with Graph
            echo "SDK error: ".$e->getMessage();
            unset($_SESSION['user_token']);
        } catch(Facebook\Exceptions\FacebookResponseException $e) {
          // When Graph returns an error
            echo 'Graph returned an error: ' . $e->getMessage();
            unset($_SESSION['user_token']);
        }

        if (! isset($accessToken)) {
            echo 'No cookie set or no OAuth data could be obtained from cookie.';
            unset($_SESSION['user_token']);
        }else{
            if($accessToken->isExpired()){
                unset($_SESSION['user_token']);
                echo "<script>location.href='instant_article.php'</script>";
                exit;
            }
        }

        if(!isset($_SESSION['user_token'])){
            echo "<script>location.href='instant_article.php'</script>";
            exit;
        }

        try {
            // Exchanges a short-lived access token for a long-lived one
            $userToken = $oAuth2Client->getLongLivedAccessToken($accessToken);
            $long_token = $userToken->getValue();
        } catch(Facebook\Exceptions\FacebookSDKException $e) {
            // There was an error communicating with Graph
            echo 'SDK error: '.$e->getMessage();
            exit;
        }
        /*$res_perms = $fb->get('/me/permissions?access_token='.$long_token,$long_token,'','v2.6');
        echo "<pre>";
        print_r($res_perms);
        exit;*/
        $res_page = $fb->get('/'.$page_id.'?fields=access_token',$long_token,'','v2.6');
        $page_info = $res_page->getDecodedBody();
        $page_token = $page_info['access_token'];

        $article_html = '{ html of article goes here}';

        if(trim($article_html) != ""){
            $page_params = array(
                'access_token'=>$page_token,
                'html_source'=>$article_html,
                'development_mode'=>true
            );
            $res_article = $fb->post('/'.$page_id.'/instant_articles',$page_params,$page_token);
        }
    }
}
?>

如果有人可以帮助我,那就太好了。

4

0 回答 0