wiki-grav/plugins/login-oauth2-extras/vendor/stevenmaguire/oauth2-keycloak/examples/index.php

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<?php
require 'vendor/autoload.php';
session_start();
$provider = new Stevenmaguire\OAuth2\Client\Provider\Keycloak([
'authServerUrl' => '',
'realm' => '',
'clientId' => '',
'clientSecret' => '',
'redirectUri' => '',
'encryptionAlgorithm' => null,
'encryptionKey' => null,
'encryptionKeyPath' => null
]);
if (!isset($_GET['code'])) {
// If we don't have an authorization code then get one
$authUrl = $provider->getAuthorizationUrl();
$_SESSION['oauth2state'] = $provider->getState();
header('Location: '.$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, make sure HTTP sessions are enabled.');
} else {
// Try to get an access token (using the authorization coe grant)
try {
$token = $provider->getAccessToken('authorization_code', [
'code' => $_GET['code']
]);
} catch (Exception $e) {
exit('Failed to get access token: '.$e->getMessage());
}
// Optional: Now you have a token you can look up a users profile data
try {
// We got an access token, let's now get the user's details
$user = $provider->getResourceOwner($token);
// Use these details to create a new profile
printf('Hello %s!\n<br>', $user->getName());
} catch (Exception $e) {
exit('Failed to get resource owner: '.$e->getMessage());
}
// Use this to interact with an API on the users behalf
echo $token->getToken();
}