Question

我已经定义了一个访问令牌并拥有“喜欢”Facebook页面所需的权限，但是firebug一直在给我标题中的错误。 请不要将此帖标记为重复，因为我查看了有关问题的帖子，但我无法找到适合我的具体案例的答案。我无法理解为什么或如何解决它。我的代码如下：

utils.php中

    <?php
require_once('sdk/src/facebook.php');
require_once("AppInfo.php");
/**
 * @return the value at $index in $array or $default if $index is not set.
 */
function idx(array $array, $key, $default = null) {
  return array_key_exists($key, $array) ? $array[$key] : $default;
}

function he($str) {
  return htmlentities($str, ENT_QUOTES, "UTF-8");
}
$facebook = new Facebook(array(
'appId'  => AppInfo::appID(),
'secret' => AppInfo::appSecret(),
'sharedSession' => true,
'trustForwarded' => true,
'file_upload' =>true
));
$user_id = $facebook->getUser();
if($user_id)
{
  $logoutUrl =$facebook->getLogoutUrl();
}
  else
  {
      $loginUrl=$facebook->getLoginUrl();
  }
if ($user_id) {
try {
  // Fetch the viewer's basic information
  $user_profile = $facebook->api('/me');
} catch (FacebookApiException $e) {
  // If the call fails we check if we still have a user. The user will be
  // cleared if the error is because of an invalid accesstoken
  if (!$facebook->getUser()) {
    header('Location: '. AppInfo::getUrl($_SERVER['REQUEST_URI']));
    exit();
  }
}
}
?>

likes.php

      <?php

require_once("sdk/src/facebook.php"); 
require_once("utils.php");
require_once("AppInfo.php");
$permissions = $facebook->api('/me/permissions    ');
if( array_key_exists('publish_actions', $permissions['data'][0]) ) {
    // Permission is granted!
    // Do the related task
    //$post_id = $facebook->api('/me/feed', 'post', array('message'=>'Hello World!'));
} else {
    // We don't have the permission
    // Alert the user or ask for the permission!
    header( "Location: " . $facebook->getLoginUrl(array("scope" => "publish_actions")) );
}
?>
    <!DOCTYPE html>
    <html xmlns:fb="http://ogp.me/ns/fb#">
    <head>

      <style type="text/css">
      li{ 
        vertical-align: middle;
        padding-top: 1em; 
      }
    </style>
    <div id="fb-root"></div>
      <script type="text/javascript" src="/javascript/jquery-1.7.1.min.js"></script>
     <script type="text/javascript">

      (function(d, debug){
         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" + (debug ? "/debug" : "") + ".js";
         ref.parentNode.insertBefore(js, ref);
       }(document, false)); //loads javascript-sdk

        $(function() {
          // Set up so we handle click on the buttons
          $('#like_but').click(function(){
          FB.api(
      'me/og.likes',
      'post',
      {
        object: "http://facebook.com/216730015024772"
      },
      function(response) {
        alert(response);
      });});}); // they are closed properly, don't bother checking it. (!) Should like the 'object'
     </script>
    </head>
    <body> 
    <div style="position:fixed; display:block">
      <input type="button" value="Like" id="like_but"/>
 </div>    
</body>
</html>

有没有人知道为什么会出现错误或我该如何解决？任何提示都将不胜感激。

注意：用户从另一个index.php登录，但我不会在这里发布，因为它没有问题，访问令牌仍然在utils.php中收集。此外，当检查是否在“likes.php”中授予权限时，它可以正常工作。

Answer 1

假设您从Facebook收到的access_token确实有效......看起来您的Facebook javascript SDK的实现并不完整。

您已经包含了库加载器，但是没有FB.init();部分来初始化库。我看不到第二个代码块中任何appId的引用，因此Facebook有办法知道您的代码所引用的应用程序。

请参阅following documentation from Facebook。

具体来说，这可以解决您的问题：

window.fbAsyncInit = function() {
    // init the FB JS SDK
    FB.init({
        appId      : 'YOUR_APP_ID', // App ID from the App Dashboard
        channelUrl : '//WWW.YOUR_DOMAIN.COM/channel.html', // Channel File for x-domain communication
        status     : true, // check the login status upon init?
        cookie     : true, // set sessions cookies to allow your server to access the session?
        xfbml      : true  // parse XFBML tags on this page?
    });

    // Additional initialization code such as adding Event Listeners goes here
    document.getElementById('like_but').addEventListener('click', function() {
        FB.api('me/og.likes', 'post', {
            object: "http://facebook.com/216730015024772"
        }, function(response) {
            console.log(response);
        });
    }, false);
};

(function(d, debug){
    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" + (debug ? "/debug" : "") + ".js";
    ref.parentNode.insertBefore(js, ref);
}(document, /*debug*/ false));

必须使用活动访问令牌来查询有关当前用户的信息访问令牌似乎有效

1 个答案: