从另一个PHP站点发布到粉丝页面的墙上作为页面

Question

我知道有很多questons,但似乎都需要用户登录...我一直在使用所有可能的教程中的代码片段,但似乎都没有.

这是一个场景:我有一个在PHP上运行的照片社区,我在Facebook上有一个粉丝页面.当主站点上的图像收集一定数量的投票时,触发功能以将图像链接发布到Facebook墙.链接(帖子)作为页面发布,而不是作为管理员发布.管理员当然不会在线...这些天甚至可以这样做吗？我有最新的PHP SDK,这是我需要在插件进入主站点之前以独立模式工作的功能.

好.如果我登录到Facebook,此代码可以正常工作,但如果我不是 - 它将不会发布...应用程序具有所有必要且不必要的权限,以代表我的(管理员)与我的页面进行交互.任何想法将不胜感激.

    <?php
//facebook application
$fbconfig['appid' ]     = "1848740815xxxxx";
$fbconfig['secret']     = "a5aa62bb3a8ddcb98d5d9dbe4a3xxxxx";
$fbconfig['pageid']     = "121409594622865";

$user  =   null; //facebook user uid
try{
    include_once "facebook.php";
}
catch(Exception $o){
    error_log($o);
}
// Create our Application instance.
$facebook = new Facebook(array(
  'appId'  => $fbconfig['appid'],
  'secret' => $fbconfig['secret']
));
//Facebook Authentication part
$user       = $facebook->getUser();
$loginUrl   = $facebook->getLoginUrl(
        array(
            'scope'         => 'offline_access,publish_stream'
            )
        );
$logoutUrl  = $facebook->getLogoutUrl();
$pageid = $fbconfig['pageid'];

if ($user) {
      try {
        $page_info = $facebook->api("/$pageid?fields=access_token");

        if( !empty($page_info['access_token']) ) {
        $args = array(
            'access_token'  => $page_info['access_token'],
            'message' => 'This is a test feed message', 
            'link'    => 'http://www.fotodvor.com',
            'picture' => 'http://www.fotodvor.com/data/media/15/1319971991.jpg',
            'name'    => 'Test Picture',
            'description'=> 'Description of the test picture!'
        );
        $post_id = $facebook->api("/$page_id/feed","post",$args);
    }
  } catch (FacebookApiException $e) {
    error_log($e);
    $user = null;
  }
}
?>

提前致谢

Answer 1

这是一个修改过的脚本,其中的解释根据API中的更改进行了调整

<?php
//facebook application
$fbconfig['userid']    = "5332534xx";
$fbconfig['appid' ]    = "184874081548xxx";
$fbconfig['secret']    = "a5aa62bb3a8xxxb98d5d9dbe4a368xxx";
$fbconfig['pageid']    = "121409594622xxx";

$fbconfig['token1']     = "AAACoJFn1eLABAKpL9W0nZBrw0e3zzdSNVsTg6FWDMhSnOUeinjid6yAQ2z9JDxxxxxxc1hMHBC3GG18KZBwppGDehWMEwLe56wagZDZD";  // step 1 - returned by loggin in.
$fbconfig['token2']     = "AAACoJFn1eLABAC2Q8OLnqxjUSKzdn9CzaXhy8nsG61vzp2ufePr5iwHZA7TM7Ibxxxxxxyf868O04FeBxMrIo0RCumrNaB78hZAp2uRrbVlGVPXP"; // step 3 - this is a page access token as page
$fbconfig['my_ulr']     = 'http://'.$_SERVER['SERVER_NAME'];

include_once "facebook.php";

// Create our Application instance.
$facebook = new Facebook(array(
  'appId'  => $fbconfig['appid'],
  'secret' => $fbconfig['secret'],
));

// 1. we need to get a user access_token first, (old approach with offline_access forces the tokens received not to expire (good examples here - http://developers.facebook.com/docs/authentication2/ and http://www.howtobe.pro/tag/graph-api)
// run the file and see step 1 instructions.

//offline_access has been deprecated in May 2012 and therefore excluded from the request below
$token_url1 = "https://www.facebook.com/dialog/oauth?"."client_id=".$fbconfig['appid']."&redirect_uri=".urlencode($fbconfig['my_ulr'])."&scope=manage_pages,publish_stream&response_type=token";

echo "<h2>This little working example should give you a working non expiring token to use in your PHP script to enable it to post to your Facebook page as a page and not as a user</h2><br>";
echo "1 - Click on the link below (this redirects to uri with token attached). Log in as admin of the page you are trying to post to. Then copy the token you will get in the address bar to be used in the script in step 2.<br>";
echo "<a href='".$token_url1."' target='_blank'>$token_url1</a>";

//2. then paste the token you received into "step 1" variable in the config section above. Run this script again when logged in to receive all info.
$token_url2 = "https://graph.facebook.com/me?access_token=".$fbconfig['token1'];
$me = json_decode(file_get_contents($token_url2), true);

//echo "<hr><br>this URL gives you all pages that you as admin have access to, but these are NOT what we need to post to the fan page as PAGE so this is just for the heck of it...<br>";
//echo "<a href='".$token_url2."' target='_blank'>$token_url2</a>";
//echo "<hr>this is a raw server reply<br>";
//echo d($me['id'])."<hr>";

//new changes to API - https://developers.facebook.com/roadmap/offline-access-removal/#extend_token
$new_token_url2 = "https://graph.facebook.com/oauth/access_token?client_id=".$fbconfig['appid']."&client_secret=".$fbconfig['secret']."&grant_type=fb_exchange_token&fb_exchange_token=".$fbconfig['token1'];
$new_token2 = file_get_contents($new_token_url2);
$vars = explode('&', $new_token2);
//d($vars);

echo "2. We now obtain a long lasting token (based on <a href='https://developers.facebook.com/roadmap/offline-access-removal/#extend_token' target='_blank'>this</a>)
<br><br>We send the request<br>'".$new_token_url2."'<br><br>and the reply is:<br>'".$new_token2."'<br><br>";

//http://developers.facebook.com/tools/explorer?method=GET&path=533253476&accounts&access_token=AAACoJFn1eLABAFZBftV0vtlBiHKA7ZAIrukrriyp2coWSavj3L4CbfJ9r3WY76IPi7pwUgt3wsubaI4iBbsr663PrbNyaLdZAhLxneOLAZDZD

echo"So now open this page <a href='http://developers.facebook.com/tools/explorer' target='_blank'>http://developers.facebook.com/tools/explorer</a>, 
then put the token above to put into the 'Access Token: ' field and press enter... You will need to press 'accounts' link to the right from the response window.
<br>you will see another response and copy your page access token from there. Automating this task into one query did not work... I tried many times.. the token returned IS NOT THE SAME as you would get following the instructions step by step...
This approach does not work - <br>";
echo "http://developers.facebook.com/tools/explorer?method=GET&path=".$me['id']."%2Faccounts&".$vars[0]."<BR><BR><BR>";
echo "Please check it here <a href='http://developers.facebook.com/tools/debug' target='_blank'>https://developers.facebook.com/tools/debug</a> and make sure it never expires...";


$pageid = $fbconfig['pageid'];
try {

//Step 3. Run this script WHEN LOGGED IN to and paste the resulting token into step 3 variable above to check the functionality

/*     $page_info = $facebook->api("/$pageid?fields=access_token&".$new_token2);  //wrong approach to use this straight. THIS is the access token is that we need. BUT this will work only if user is logged in. so 
    echo "<hr>this is a page_info breakdown";
    d($page_info);
    echo "and the access token you needs to paste into fbconfig['token2'] variable is this:<br>";
    echo $page_info['access_token']; */

    $args = array(
            'access_token'  => $fbconfig['token2'], //do not attempt to plug the $page_info['access_token'] here... it will be empty once you log off Facebook
            'message' => 'This is a test feed message', 
            'link'    => 'http://www.test.com',
            'picture' => 'https://www.google.com/intl/en_com/images/srpr/logo3w.png',
            'name'    => 'Test Picture',
            'description'=> 'Description of the test picture!'
        );

         //uncomment this once you are ready to post and you can see all the access token in the last step. Then comment out all echo and d()'s to make the script silent...            
        //$post_id = $facebook->api("/$pageid/feed","post",$args);
        echo "<hr>This will show once the message is posted - post_id is: <br>";
        d($post_id); 
  } catch (FacebookApiException $e) {
    error_log($e);
  }

function d($d){
    echo '<pre>';
    print_r($d);
    echo '</pre>';
}
?>