Facebook API:如何在没有offline_access权限的情况下在用户离线时发布到页面Feed

时间:2011-03-06 07:15:25

标签: facebook facebook-graph-api

使用Facebook的Graph API,我在用户离线时仅使用publish_stream权限成功发布到用户的Feed。我不需要offline_access权限。我在这里解释了我是如何做到的:Facebook Stream Publish while offline

在用户离线时,我没有成功发布到网页。这是我的情景:

用户U是Page P. P的管理员,授权并安装我的应用。你授权我的应用并授予我以下扩展权限:

  • publish_stream
  • manage_pages

一旦用户离线,如果我尝试使用相同的技术发布到用户的流(没有offline_access权限)而是发布到页面,我得到“用户未授权应用程序执行此操作行动”。这是技术:

1)获取我的应用程序的access_token

2)使用我的应用程序的access_token发布到Page P的Feed: 发布 https://graph.facebook.com/ {page_id} / feed

如果在步骤2中使用{user_id}而不是{page_id},那么它会毫无问题地发布到用户的Feed中。但是,我想发布到Page的Feed。是否有可能做到这一点?或者我是否需要用户的offline_access权限才能执行此操作?

谢谢, 约翰尼

3 个答案:

答案 0 :(得分:7)

全流程 - 四页示例(更容易编辑和理解示例)

所以配置只有基本的应用信息......

当您加载index.php时,它会重定向到Facebook以获取页面的授权..(可能已经有了这个...但涵盖所有基础)

Facebook然后重定向回redirecturl(backfromfb.php)...

Facebook将访问令牌作为哈希值而不是get变量返回,因此该页面将使用哈希值作为变量进行刷新...

然后加载PageUpdate.php来处理通过app / admin令牌的循环,找到要发布到的页面的正确值。

然后它构建帖子并提交它..

听起来你已经理解了大部分内容......所以希望这会帮助你完成最后一点。

<强>的config.php

<?php
$config = array(
    'appId' => 'YOUR APP ID',
    'secret' => 'YOUR APP SECRET',
    'cookie' => true;
    );

$baseurl = 'http://yoursite.com/';
$returnpage = 'backfromfb.php';

require_once('library/facebook.php');

?>

<强>的index.php

<?php require_once('config.php'); ?>

<html><head><title>Redirecting for auth</title></head><body><script type="text/javascript">
            window.location.href = 'https://www.facebook.com/dialog/oauth?client_id=<?php echo $config['appId']; ?>&redirect_uri=<?php echo $baseurl . $returnpage; ?>&scope=manage_pages&response_type=token';
</script></body></html>

<强> backfromfb.php

<?php
require_once('config.php');
// this page just passes the access token from the hash to a GET arg...
if (!isset($_GET['access_token'])) {
?>
<html><head><title>Redirecting</title></head><body><script type="text/javascript">
            accessToken = window.location.hash.substring(1);
            window.location.href = '<?php echo $baseurl . $returnpage; ?>?' + accessToken;
</script></body></html>
<?php
} else {
require_once('PageUpdate.php');
} ?>

<强> PageUpdate.php

<?php
require_once('config.php');

$pageID = "123456 WHatever you page id is";

$AppToken = array(
    'access_token' =>  $_REQUEST['acess_token']
);

$fb = new Facebook($config);

// Load APP page access rights for user via AppToken
$pageAdmin = $fb->api('/me/accounts', 'GET', $AppToken);

// Find the page access token
foreach ($pageAdmin['data'] as $data) {
    if ($data['id'] == $pageID) {
        $pageToken['access_token'] = $data['access_token'];
        continue;
    }
}

// compile the post
$WallPost = array(
    'message' => 'Test post from my app!'
);  // you can also use 'picture', 'link', 'name', 'caption', 'description', 'source'.... 
    //http://developers.facebook.com/docs/reference/api/


// post to wall
$response = $fb->api($pageID . '/feed','POST',$WallPost);

if($response) {

    echo 'Success!';
    echo '<pre>' . $response . '</pre>';

} else echo "failed";


?>

答案 1 :(得分:2)

问题是您需要使用通过获得的提交提供的页面的访问令牌...

呃......更容易说出来就是这样:

您的应用请求预先设置“manage_pages” - 一旦您接受/授予预先许可,那么您有一个access_token用于应用程序预置(离线只会使expires = 0)

所以现在您的应用已预先管理您的网页,但它需要特定网页的令牌...

因此,如果您使用第一个令牌发出/me/accounts(或/UID/accounts),您将获得应用程序可以访问的页面列表及其各自的令牌...

从那里抓取页面的标记然后发出带有该标记的命令

使用facebook类(facebook.php和证书文件)

require_once 'library/facebook.php';

$app_id = "YOURAPPID";
$app_secret = "YOURSECRET";

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

$token =  array(
    'access_token' => 'THE Token from app / manage_page auth'
);

$userdata = $facebook->api('/me/accounts', 'GET', $token);

echo '<pre'>;
print_r($userdata);
echo '</pre>';

您应该会看到一个页面ID列表及其访问权限...

通常我做一个foreach $userdata['data']并查找页面ID,然后我从该子阵列中获取令牌......

答案 2 :(得分:1)

这是我的答案。上面的代码对我不起作用。但我为自己制作了一个,完美无缺。这是代码。

服务器端代码:

<?php
@session_start();
require "fblib/facebook.php";
define('YOUR_APP_ID','');
define('YOUR_APP_SECRET','');
$facebook = new Facebook(array(
    'appId'  => YOUR_APP_ID,
    'secret' => YOUR_APP_SECRET,
));

if($_SESSION['access_token']!='') {
    $access_token = $_SESSION['access_token'];
$user_id = $_SESSION['user_id'];
} else {
    $access_token = $_REQUEST['access_token'];
    $_SESSION['access_token'] = $_REQUEST['access_token'];
    $user_id = $_REQUEST['user_id'];
    $_SESSION['user_id'] = $_REQUEST['user_id'];
}

$user_id = $_REQUEST['user_id'];

$facebook->setAccessToken($_REQUEST['access_token']);

$post =  array(
    'message' => 'This message is posted with access token - ' . date('Y-m-d H:i:s')
);

// and make the request
$response = $facebook->api('/me/feed', 'POST', $post);
?>

客户端代码:

<?php
require "fblib/facebook.php";
define('YOUR_APP_ID','387647494631464');
define('YOUR_APP_SECRET','857f41bdd23c26ae132a1c75a343ddc9');
$facebook = new Facebook(array(
    'appId'  => YOUR_APP_ID,
    'secret' => YOUR_APP_SECRET,
));

$user = $facebook->getUser();
if ($user) {
    try {
        $user_profile = $facebook->api('/me');
    } catch (FacebookApiException $e) {
        // The access token we have is not valid
        $user = null;
    }
}
?>
<div id="fb-root"></div>
<script language="javascript" src="js/jquery-1.7.2.min.js"></script> 
<script>
    var accessToken;
    var uid;
    // Load the SDK Asynchronously
    (function(d){
        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.js";
        ref.parentNode.insertBefore(js, ref);
    }(document));

    // Init the SDK upon load
    window.fbAsyncInit = function() {
        FB.init({
            appId      : '', // App ID
            channelUrl : '//'+window.location.hostname+'/channel', // Path to your Channel File
            status     : true, // check login status
            cookie     : true, // enable cookies to allow the server to access the session
            xfbml      : true  // parse XFBML
        });

        // listen for and handle auth.statusChange events
        FB.Event.subscribe('auth.statusChange', function(response) {
            if (response.authResponse) {
                // user has auth'd your app and is logged into Facebook
                FB.api('/me', function(me) {
                    if (me.name) {
                        //   document.getElementById('auth-displayname').innerHTML = me.name;
                        accessToken = response.authResponse.accessToken;
                        uid = response.authResponse.userID;
                    }
                })
                //  document.getElementById('auth-loggedout').style.display = 'none';
                //  document.getElementById('auth-loggedin').style.display = 'block';
            } else {
                // user has not auth'd your app, or is not logged into Facebook
                // document.getElementById('auth-loggedout').style.display = 'block';
                // document.getElementById('auth-loggedin').style.display = 'none';
            }
        });

        // respond to clicks on the login and logout links
        document.getElementById('auth-loginlink').addEventListener('click', function() {
            // FB.login();
            FB.login(function(response) {
                // handle the response
            }, {scope: 'offline_access,publish_stream'});
        });
    }

    function gettoken() {
        //  alert("User Token :"+accessToken+", User id :"+uid);          
        $.post('fbpost.php',{access_token:accessToken,user_id:uid},function(data) {
            //  alert(data);
        });
    }
</script>
<?php if (!$user): ?>
    <a href="Javascript:void(0)" id="auth-loginlink">Login with Facebook</a>
<?php else: ?>
    <a href="Javascript:void(0)" id="auth-logoutlink" onClick="FB.logout()" >Logout from Facebook</a>
<?php endif ?>
<a href="Javascript:void(0)"  onclick="gettoken()" >Post Into Wall</a>

请停用“删除offline_access权限:”   从fb应用程序提前设置。通过选择禁用单选按钮。