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I know there are tons of post on stackoverflow about the issue on "CSRF state token does not match one provided." However, I tried and doesn't seem to solve the issue. Can you please take a look at my code below? Please tell me what you think and how to solve the problem. I have already updated to latest PHP SDK version.
<?
require_once ('src/facebook.php');
require_once ('src/fbconfig.php');
//Facebook Authentication part
$user_id = $facebook->getUser();
$loginUrl = $facebook->getLoginUrl(array(
'scope' => 'publish_stream')
);
if ($user_id) {
$_SESSION['user_id'] = $user_id;
echo "<script>top.location.href = 'https://www.example.com/app-folder/welcome'</script>";
exit;
}
?>
.
.
<body>
<?php echo '<a href="'.$loginUrl.'" target="_top">Please login</a>'; ?>
.
.
</body>
433
getLoginUrl() generates a new token. If your user is already logged in (with $user_id = $facebook->getUser()), you'll end up with 2 tokens.
Don't ask for the $loginUrl if the user is authenticated already.
$user_id = $facebook->getUser();
if ($user_id) {
$_SESSION['user_id'] = $user_id;
echo "<script>top.location.href = 'https://www.example.com/app-folder/welcome'</script>";
exit;
} else {
$loginUrl = $facebook->getLoginUrl(array(
'scope' => 'publish_stream')
);
}
?>
100
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