wp OAuth 2.0 Client

OAuthClient.php

<?php 

session_start();
// error_reporting(0);
require get_template_directory() . '/inc/vendor/autoload.php';

require get_template_directory() . '/inc/Provider/response.php';
require get_template_directory() . '/inc/Provider/EnvatoUser.php';
require get_template_directory() . '/inc/Provider/Envato.php';

$provider = new \Smachi\OAuth2\Client\Provider\Envato([
    'clientId'          => 'id111111111111111',
    'clientSecret'      => 'pass111111111111111111',
    'redirectUri'       => 'https://example.com/',

]);

if ( ! isset( $_GET['code'] ) ) {

    // If we don't have an authorization code then get one
    $authUrl = $provider->getAuthorizationUrl();

    // Get the state generated for you and store it to the session.
    $_SESSION['oauth2state'] = $provider->getState();

    // Redirect the user to the authorization URL.
    echo    new \Symfony\Component\HttpFoundation\RedirectResponse( $authUrl );
    // header('Location: ' . $authUrl);
    exit;

}
// Check given state against previously stored one to mitigate CSRF attack
elseif ( empty( $_GET['state'] ) || ( $_GET['state'] !== $_SESSION['oauth2state'] ) ) {

	unset( $_SESSION['oauth2state'] );
	exit('Invalid state');
}
else{
	// return;
	$token = $provider->getAccessToken( 'authorization_code', [
	    'code' => $_GET['code']
	] );
	try {

	    // We got an access token, let's now get the user's details
	    $owner          = $provider->getResourceOwner( $token, 'username' );
	    $ownerEmail     = $provider->getResourceOwner( $token, 'email' );
	    // $ownerPurchases = $provider->getResourceOwner( $token, 'purchases', [ 'filter_by' => 'wordpress-themes' ] );

	    $username   = preg_replace( '/[^a-z0-9-_]/i', '', $owner->getUsername() );
	    $email      = $ownerEmail->getEmail();
	    // $purchases  = $ownerPurchases->getPurchases();
	    $authorName = 'Templines';
	  echo '<pre class="aaa" style="display:">';
	  var_dump($username);
	  var_dump($email);
	  // var_dump($purchases);
	  echo '</pre>';
	  $itemUrl = '';
	    if ( empty( $purchases ) ) {
	        throw new \Exception(
	            "Only current buyers have access to <strong>$authorName</strong> support forums.",
	            401
	        );
	    }
	    else{

	        // Check for item support validity
	        $maybePurchaseFromAuthor = FALSE;

	        foreach($purchases as $item){

	            if ( $authorName == $item['item']['author_username'] ){

	                $maybePurchaseFromAuthor = TRUE;
	                if ( strtotime( $item['supported_until'] ) > time() ){
	                    // The support license is still valid
	                    $itemUrl = $item['item']['url'];
	                    break;
	                }


	            }

	        }

	        // Support expired
	        if ( $maybePurchaseFromAuthor ){

	            if ( empty( $itemUrl ) ){
	                throw new \Exception(
	                    'Your support license has expired.<br>Please <a href="' . $itemUrl . '" target="_blank">renew it</a> and come back again to get access.',
	                    901
	                );
	            }

	        }
	        // Did not purchase any item from author
	        else{
	            throw new \Exception(
	                "Only current buyers have access to <strong>$authorName</strong> support forums.",
	                401
	            );
	        }


	    }










	wp_redirect(get_home_url());

	} catch (\Exception $e){
	    die( $e->getMessage() );
	}
}