需要有关 OAuthException 代码 2500 的帮助
我正在尝试使用 PHP 开发 Facebook 应用程序 (apps.facebook.com/some_app),其中我需要根据用户的音乐兴趣呈现一些信息。我发现它位于“user_likes > games”下。
我的问题如下:
- 为了获得访问权限,我已将 oauth 对话框方法实现为 在我的索引页的 API 中建议。
$auth_url = "http://www.facebook.com/dialog/oauth?client_id="
. $app_id . "&redirect_uri="
. urlencode($canvas_page)
."&scope=user_likes";
- 授权成功后,我返回到带有“代码”的索引页面 作为参数。
http://MY_CANVAS_PAGE/?code=some base64 encoded letters
- 首先我不知道我是否需要 access_token 来读取用户的音乐 兴趣,但我已经尝试了所有建议的方法。我无法动弹 从这一点开始,
- 我有一个像这样的代码(在我的索引页面中),如果未设置代码参数,它将重定向以进行授权。
if(empty($code) && !isset($_REQUEST['error'])) {
$_SESSION['state'] = md5(uniqid(rand(), TRUE)); //CSRF protection
echo("<script> top.location.href='" . $auth_url . "'</script>");
}
- 目前我只是想在这里获取用户的公共信息但是 没有成功。我已按照建议尝试了signed_request方法 但没有成功
$signed_request = $_REQUEST["signed_request"];
list($encoded_sig, $payload) = explode('.', $signed_request, 2);
$data = json_decode(base64_decode(strtr($payload, '-_', '+/')), true);
echo ("Welcome User: " . $data["user_id"]);
还尝试了中找到的代码 http://developers.facebook.com/blog/post/500/
但我在尝试使用获取调试信息时遇到错误
print_r($decoded_response);
stdClass Object ( [error] => stdClass Object ( [message] => An active
access token must be used to query information about the current user.
[type] => OAuthException [code] => 2500 ) )
要获取用户的公共信息,我也尝试了 PHP SDK 中建议的示例,
$facebook = new Facebook(array(
'appId' => MY_APP_ID, //registered facebook APP ID
'secret' => MY_SECRET, //secret key for APP
));
$fb_user = $facebook->getUser();
if($fb_user){
try {
$user_profile = $facebook->api('/me');
echo $user_profile['email'];
}
catch(FacebookApiException $e) {
$fb_user = null;
}
}
但没有成功。有人可以解释一下为什么我会收到此错误以及如何正确访问用户的音乐兴趣。可能我误解了API。
谢谢迪帕克
I am trying to develop an Facebook application (apps.facebook.com/some_app) using PHP where I need to present some information based on user's music interests. I found that its under "user_likes > games".
My problems are as follows:
- To gain access, I have implemented the oauth dialog method as
suggested in API in my index page.
$auth_url = "http://www.facebook.com/dialog/oauth?client_id="
. $app_id . "&redirect_uri="
. urlencode($canvas_page)
."&scope=user_likes";
- After successful authorization I come back to index page with "code"
as parameters.
http://MY_CANVAS_PAGE/?code=some base64 encoded letters
- Firstly I don't know if I need access_token just to read user's music
interests but I have tried all the methods suggested. I couldn't move
forward from this point - I have a code like this (in my index page), which redirects for authorization if code parameters is not set.
if(empty($code) && !isset($_REQUEST['error'])) {
$_SESSION['state'] = md5(uniqid(rand(), TRUE)); //CSRF protection
echo("<script> top.location.href='" . $auth_url . "'</script>");
}
- Currently I am just trying to get user's public information here but
with no success. I have tried the signed_request method as suggested
but no success
$signed_request = $_REQUEST["signed_request"];
list($encoded_sig, $payload) = explode('.', $signed_request, 2);
$data = json_decode(base64_decode(strtr($payload, '-_', '+/')), true);
echo ("Welcome User: " . $data["user_id"]);
Also tried the code found in
http://developers.facebook.com/blog/post/500/but I am getting error when trying to get the debug info using
print_r($decoded_response);
stdClass Object ( [error] => stdClass Object ( [message] => An active
access token must be used to query information about the current user.
[type] => OAuthException [code] => 2500 ) )
To get user's public info, I have tried also the suggested example in PHP SDK
$facebook = new Facebook(array(
'appId' => MY_APP_ID, //registered facebook APP ID
'secret' => MY_SECRET, //secret key for APP
));
$fb_user = $facebook->getUser();
if($fb_user){
try {
$user_profile = $facebook->api('/me');
echo $user_profile['email'];
}
catch(FacebookApiException $e) {
$fb_user = null;
}
}
But no success. Can somebody explain me why I am getting this error and how to access the user's music interest properly. Probably I misunderstood the API.
Thanks
Deepak
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。

绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论
评论(4)
错误 2500 表示您没有访问令牌或应用程序访问令牌,但正在尝试访问
/me/
- “me”是“当前用户或页面 ID”的占位符,因此如果没有访问令牌,则无效用户或页面的访问令牌。要访问用户的点赞列表,您还需要
user_likes
权限 授权时我发现应用程序无法将
code
交换为访问令牌的最可能原因是:redirect_uri
是文件夹或服务器根目录并且缺少尾部斜杠(即它是http://www.example.com
而不是http://www.example.com/
redirect_uri
并不完全相同如果您的身份验证流程因某些原因而中断其他原因你不能从 SDK 示例或 身份验证 文档中找出答案,这可能需要一段时间才能完成与您交谈,因为您可能缺少一些理解他们的答案所需的背景知识
Error 2500 means you have no access token or an app access token but are trying to access
/me/
- 'me' is a placeholder for 'current user or page ID' so won't be valid without an access token for a user or page.To access the user's list of likes you'll also need the
user_likes
Permission when authorising themThe most likely causes i've seen for apps not being able to exchange the
code
for an access token are:redirect_uri
you used is to a folder or server root and is missing a trailing slash (i.e it'shttp://www.example.com
instead ofhttp://www.example.com/
)redirect_uri
you used in the first call to the auth dialog wasn't precisely the same as theredirect_uri
you used in the call to exchagne the code for an access_tokenIf your auth flow is broken for some other reason and you can't figure it out from the SDK examples or the Authentication documentation, this could take a while for someone to talk you through because you may be missing some background knowledge necessary to understand their answers
对我来说,我尝试使用 php 获取身份验证令牌,发现 2500 错误是由于
file_get_contents
未返回任何内容的问题造成的。我可以在浏览器中访问该 URL,但不能使用file_get_contents
来访问。我通过使用 CURL 来修复它,如下所述:https://stackoverflow.com/a/6325313。结果是我使用了 https://developers.facebook.com/ 中的代码docs/authentication/server-side/ 并将该行替换为:
因此
变成:
For me, I was trying to get an auth token with php and found out that the 2500 error was due to an issue with
file_get_contents
not returning anything. I could access the URL in my browser, but not by usingfile_get_contents
. I fixed it by using CURL instead as described here: https://stackoverflow.com/a/6325313.The result was that I used the code from https://developers.facebook.com/docs/authentication/server-side/ and replaced the line:
with
It therefore became:
尝试此代码
PS:用户电子邮件地址不是公共信息 &您需要 user_email 权限
try This code
PS:user email address is not a public info & you need user_email permission for it
感谢 https://developers.facebook.com/blog/post/534 我已经解决了我的问题/
我刚刚复制了示例并粘贴到我的脚本中。它完全适合。它是 PHP 和 Javascript 的混合使用。
I have solved my problem thanks to https://developers.facebook.com/blog/post/534/
I just copied the sample and pasted into my script. It fully fits. It is kind of hybrid usage of PHP and Javascript.