在facebook画布应用程序中集成facebook php sdk时出现空白页或oauthData错误
我正在尝试为我的canvas应用集成facebook。当我使用以下代码从facebook运行应用程序时在facebook画布应用程序中集成facebook php sdk时出现空白页或oauthData错误,php,facebook,facebook-php-sdk,Php,Facebook,Facebook Php Sdk,我正在尝试为我的canvas应用集成facebook。当我使用以下代码从facebook运行应用程序时 // init app with app id (APPID) and secret (SECRET) FacebookSession::setDefaultApplication('xx','xx'); $helper = new FacebookCanvasLoginHelper(); try { $data = array('oauth_token' => 'token
// init app with app id (APPID) and secret (SECRET)
FacebookSession::setDefaultApplication('xx','xx');
$helper = new FacebookCanvasLoginHelper();
try {
$data = array('oauth_token' => 'token');
$data['algorithm'] = 'HMAC-SHA256';
$data['issued_at'] = time();
$base64data = base64_encode(json_encode($data));
$rawSig = hash_hmac('sha256', $base64data, 'app_Secret', true);
$sig = base64_encode($rawSig);
$signedRequest = $sig.'.'.$base64data;
$_GET['signed_request'] = $signedRequest;
$session = $helper->getSession();
} catch(FacebookRequestException $ex) {
echo $ex;
} catch(\Exception $ex) {
echo $ex;
}
由于$\u GET['signed\u request']=$signedRequest;,整个页面变为白色代码>
我应该怎么做才能登录。如果我只做$session=$helper->getSession()代码>而不是Get,我得到的是无效的签名参数oAuth数据丢失。
<?php
// init app with app id (APPID) and secret (SECRET)
FacebookSession::setDefaultApplication('*********','*********' );
$helper = new FacebookCanvasLoginHelper();
try {
$session = $helper->getSession();
} catch(FacebookRequestException $ex) {
// When Facebook returns an error
} catch(Exception $ex) {
// When validation fails or other local issues
}
if($session) {
// graph api request for user data
$request = new FacebookRequest( $session, 'GET', '/me' );
$response = $request->execute();
// get response
$graphObject = $response->getGraphObject();
// print data
echo '<pre>' . print_r( $graphObject, 1 ) . '</pre>';
}
else {
// show login url
echo '<a href="' . $helper->getLoginUrl($scope) . '">Login</a>';
}
?>
您的PHP应该是:
<script>
<?php if(isset($facebookLoginHtml)){ echo $facebookLoginHtml; } ?>
</script>
然后在HTML中的某个地方:
$facebookLoginHtml = "window.top.location = 'https://www.facebook.com/dialog/oauth?client_id={your_app_id}&redirect_uri={your_app_canvas_url}&scope=publish_actions';";
这会将页面重定向到登录页面,然后以适当的权限返回到画布应用程序
这不应该像这样工作,因为它在PHPSDK中使用Javascript。这是Facebook正在解决的一个bug,您可以在这里查看:
如果问题解决了,我会编辑答案。谢谢大家
我的做法:
<script type="text/javascript">
if($login_url != null){
top.location.href = $login_url;
}
</script>
在html中放入一个javascript:
如果($login\u url!=null){
top.location.href=$login\u url;
}
为#会议编辑您没有收到我的问题。这就是我正在做的,但是$session给出了错误oauthData errorIt's working with me删除\from}catch(\Exception$ex){你能告诉我你是如何创建canvas应用程序的吗?你能做一个简单的项目并提供详细信息吗?@akram FacebookCanvasLoginHelper没有getLoginUrl方法。我在Facebook上提交了一个bug:他们复制了这个问题,并将其转化为一个有效的bug。如果你能去那里订阅这个bug,以便它获得更多的关注,那么它将是太好了,谢谢!这是一只讨厌的虫子
<?php
session_start();
require ({your_php_sdk_path} . 'autoload.php');
use Facebook\FacebookCanvasLoginHelper;
use Facebook\FacebookRedirectLoginHelper;
use Facebook\FacebookSession;
use Facebook\FacebookRequest;
use Facebook\GraphUser;
FacebookSession::setDefaultApplication({your_app_id},{your_app_secret});
$helper = new FacebookCanvasLoginHelper();
try {
$session = $helper->getSession();
}catch(FacebookRequestException $ex) {
// When Facebook returns an error
} catch(\Exception $ex) {
// When validation fails or other local issues
}
if (!is_null($session)) {
// Logged in
try {
//Get user name
$user_profile = (new FacebookRequest(
$session, 'GET', '/me'
))->execute()->getGraphObject(GraphUser::className());
$user_profile_name = $user_profile->getName();
//Get user picture
$request = new FacebookRequest(
$session,
'GET',
'/me/picture',
array (
'redirect' => false,
'height' => '135',
'width' => '135',
)
);
$response = $request->execute();
$graphObject = $response->getGraphObject();
$user_profile_picture = $graphObject->getProperty('url');
} catch(FacebookRequestException $e) {
// When Facebook returns an error
} catch(Exception $e) {
// When validation fails or other local issues
}
}else{
//First time -> ask for authorization
$helper = new FacebookRedirectLoginHelper({your_canvas_url});
$login_url = $helper->getLoginUrl();
}
?>
<script type="text/javascript">
if($login_url != null){
top.location.href = $login_url;
}
</script>