我正在使用Facebook sdk v5 for php。我正在使用其登录流程来获取用户帐户及其管理的页面的访问令牌。当用户登录时,它会提供扩展访问令牌(有效期为60天),但如果用户再次登录,则会生成过期令牌,其过期日期为1970年。
继承我正在使用的代码
session_start();
set_time_limit(0);
#######################################CONFIGURE YOUR APP HERE##########################
define("APP_ID", "abcd");
define("APP_SECRET", "abcd");//APP SECRET
//To find Facebook page id go to https://www.facebook.com/username{if username is not set this is your fb id}/info?tab=page_info //Scroll to bottom of the page you will find you facebook page id
define("PAGE_ID", "abcd");//FACEBOOK PAGE ID ***USERNAME NOT ALLOWD***
////APP CONFIGURATION COMPLETE
require_once('libs/fbv5/src/Facebook/autoload.php');//Includes PHP SDK V 5
$fb = new Facebook\Facebook([
'app_id' => APP_ID,
'app_secret' => APP_SECRET,
'default_graph_version' => 'v2.4',
]);
$helper = $fb->getRedirectLoginHelper();
try {
$accessToken = $helper->getAccessToken();
} catch(Facebook\Exceptions\FacebookResponseException $e) {
// When Graph returns an error
echo 'Graph returned an error: ' . $e->getMessage();
exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
// When validation fails or other local issues
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
if (! isset($accessToken)) {
if ($helper->getError()) {
header('HTTP/1.0 401 Unauthorized');
echo "Error: " . $helper->getError() . "\n";
echo "Error Code: " . $helper->getErrorCode() . "\n";
echo "Error Reason: " . $helper->getErrorReason() . "\n";
echo "Error Description: " . $helper->getErrorDescription() . "\n";
} else {
header('HTTP/1.0 400 Bad Request');
echo 'Bad request';
}
exit;
}
// Logged in
//echo '<h3>Access Token</h3>';
//var_dump($accessToken->getValue());
// The OAuth 2.0 client handler helps us manage access tokens
$oAuth2Client = $fb->getOAuth2Client();
// Get the access token metadata from /debug_token
$tokenMetadata = $oAuth2Client->debugToken($accessToken);
echo '<h3>Metadata</h3>';
var_dump($tokenMetadata);
//print_r( get_class_methods($tokenMetadata));
// Validation (these will throw FacebookSDKException's when they fail)
$tokenMetadata->validateAppId(APP_ID);
// If you know the user ID this access token belongs to, you can validate it here
//$tokenMetadata->validateUserId('123');
$tokenMetadata->validateExpiration();
if (! $accessToken->isLongLived()) {
// Exchanges a short-lived access token for a long-lived one
try {
$accessToken = $oAuth2Client->getLongLivedAccessToken($accessToken);
} catch (Facebook\Exceptions\FacebookSDKException $e) {
echo "<p>Error getting long-lived access token: " . $helper->getMessage() . "</p>\n\n";
exit;
}
// echo '<h3>Long-lived</h3>';
//var_dump($accessToken->getValue());
}
$_SESSION['fb_access_token'] = (string) $accessToken;
try {
// Returns a `Facebook\FacebookResponse` object
$response = $fb->get('/me/accounts', $accessToken);
} catch(Facebook\Exceptions\FacebookResponseException $e) {
echo 'Graph returned an error: ' . $e->getMessage();
exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
$user = $response->getGraphEdge();
ON SECOND登录ATTEMPT(用户已经过身份验证的应用程序,现在直接重定向到回调网址)