我对我的第一个Facebook应用程序项目感到非常沮丧。我在看似简单的任务方面遇到了重大问题。
我想在我的服务器上设置一个cron作业（简单），它会在Facebook页面（不是我的个人资料）上发布一些聪明的东西，它应该作为页面发布。我把自己编成了一个角落，现在我感到非常困惑......有人可以帮忙吗？
我几乎每一条错误信息都已经过了，现在我已经坚持了下来 “ OAuthException：验证应用程序时出错。”
这就是我现在所拥有的：
首先是php - ＆gt;为我的页面访问获取一个新的访问令牌。这部分似乎工作正常，因为我调用了下一页并接收了一个新的访问令牌。
<?php
require_once 'facebook.php';
$app_id = "1234....";
$app_secret = "5678....";
$my_url = "http://.../next.php";
$facebook = new Facebook(array(
'appId' => $app_id,
'secret' => $app_secret,
'cookie' => true
));
// known valid access token stored in a database
$access_token = "abc....";
$code = $_REQUEST["code"];
// If we get a code, it means that we have re-authed the user
//and can get a valid access_token.
if (isset($code)) {
$token_url="https://graph.facebook.com/oauth/access_token?
client_id="
. $app_id . "&redirect_uri=" . urlencode($my_url)
. "&client_secret=" . $app_secret
. "&code=" . $code . "&display=popup";
$response = file_get_contents($token_url);
$params = null;
parse_str($response, $params);
$access_token = $params['access_token'];
}
// Attempt to query the graph:
$graph_url = "https://graph.facebook.com/me?"
. "access_token=" . $access_token;
$response = curl_get_file_contents($graph_url);
$decoded_response = json_decode($response);
//Check for errors
if ($decoded_response->error) {
// check to see if this is an oAuth error:
if ($decoded_response->error->type== "OAuthException") {
// Retrieving a valid access token.
$dialog_url= "https://www.facebook.com/dialog/oauth?"
. "client_id=" . $app_id
. "&redirect_uri=" . urlencode($my_url);
echo("<script> top.location.href='" . $dialog_url
. "'</script>");
} else {
echo "other error has happened";
}
} else {
// success
echo("success" . $decoded_response->name);
}
function curl_get_file_contents($URL) {
$c = curl_init();
curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($c, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($c, CURLOPT_URL, $URL);
$contents = curl_exec($c);
$err = curl_getinfo($c,CURLINFO_HTTP_CODE);
curl_close($c);
if ($contents) return $contents;
else return FALSE;
}
?>
下一个php - ＆gt;阅读访问令牌并在墙上发布。我从查询字符串中获取访问令牌，但是为什么我会收到错误消息。我的身份，秘密和页面ID都是有序的......
<?php
require_once 'facebook.php';
$app_id = "1234....";
$app_secret = "5678....";
$page_id = "0909....";
$facebook = new Facebook(array(
'appId' => $app_id,
'secret' => $app_secret,
'cookie' => true
));
$access_token = $_GET['code'];
echo($access_token);
try {
$attachment = array(
'access_token' => $access_token,
'message'=> "Hello World"
);
$result = $facebook->api('/'.$page_id.'/feed','POST',
$attachment);
var_dump($result);
} catch(Exception $e) {
echo $e;
}
?>
我确信有一种更简单的方法可以做到这一点......以及一种真正实现它的方法！ 任何帮助表示赞赏！
我按照这个脚本 Update facebook page status from that page itself 还有这个 https://developers.facebook.com/blog/post/500
谢谢。
答案 0 :(得分：6)
// firstly include the fb sdk
$facebook = new Facebook(array(
'appId' => 'your app id',
'secret' => 'your app secret',`enter code here`
'cookie' => true,
));
$session = $facebook->getUser();
$loginUrl = $facebook->getLoginUrl(
array(
'scope' => 'user_status,publish_stream,email,user_location,user_birthday,friends_birthday,manage_pages',
'redirect_uri' => 'http://www.example.com/'
)
);
$logoutUrl = $facebook->getLogoutUrl(
array(
// any url u want to redirsct onto
'redirect_uri' => 'http://www.example.com/'
)
);
// when redirected from facebook get the code
$code = $_GET['code'];
//
$my_url = 'http://www.example.com/';
$app_id = 'your app id ';
$app_secret = 'your app secret ';
// here we have the access token so we will play with it
if (isset($code)) {
$token_url="https://graph.facebook.com/oauth/access_token?client_id="
. $app_id . "&redirect_uri=" . urlencode($my_url)
. "&client_secret=" . $app_secret
. "&code=" . $code ;
$response = file_get_contents($token_url);
$params = null;
parse_str($response, $params);
$user_access_token = $params['access_token'];
}
// here we got the access token of user over here in $user_access_token
// now we will get for our page
//------ get PAGE access token
$attachment_1 = array(
'access_token' => $user_access_token
);
$page_id = 'your page id ';
$result = $facebook->api("/me/accounts", $attachment_1);
foreach($result["data"] as $page) {
if($page["id"] == $page_id) {
$page_access_token = $page["access_token"];
break;
}
}
// write to page wall
try {
$attachment = array(
'access_token' => $page_access_token,
'message'=> 'hello world posting like admin!',
'page_id'=> $page_id
);
$result = $facebook->api('/'.$page_id.'/feed','POST',$attachment);
//$result = $facebook->api('/me/feed','POST', $attachment);
var_dump($result);
} catch(Exception $e) {
echo $e;
}
答案 1 :(得分：1)
从您的代码中，您似乎没有获得所需的PAGE访问令牌，而是您正在使用USER访问令牌，因此API不喜欢它。有关如何从USER获取PAGE访问令牌的更多信息，请参阅https://developers.facebook.com/docs/authentication/的页面登录部分
答案 2 :(得分：-1)
经过多个小时的反复试验，这是我迄今为止有效的解决方案。
<?php
require_once 'facebook.php';
//------ vars
$app_id = "123...";
$app_secret = "abc...";
$page_id = "999...";
$my_url = "http://exactly the same as defined /";
//------ fb object
$facebook = new Facebook(array(
'appId' => $app_id,
'secret' => $app_secret,
'cookie' => true
));
//------ verification CODE
// this is not pretty -> the code should be received with a another graph query...
// but I couldn't get this to work. Thus I'm using my last known Verification Code
$code = "ABC123...";
//------ get USER access token
if (isset($code)) {
$token_url="https://graph.facebook.com/oauth/access_token?client_id=" . $app_id
. "&client_secret=" . $app_secret
. "&code=" . $code
. "&redirect_uri=" . $my_url;
$response = file_get_contents($token_url);
$params = null;
parse_str($response, $params);
$user_access_token = $params['access_token'];
} else {
echo("No code");
}
//------ get PAGE access token
$attachment_1 = array(
'access_token' => $user_access_token
);
$result = $facebook->api("/me/accounts", $attachment_1);
foreach($result["data"] as $page) {
if($page["id"] == $page_id) {
$page_access_token = $page["access_token"];
break;
}
}
//------ write to page wall
try {
$attachment = array(
'access_token' => $page_access_token,
'message'=> 'hello world!'
);
$result = $facebook->api('/me/feed','POST', $attachment);
var_dump($result);
} catch(Exception $e) {
echo $e;
}
?>