class Client {

private $key;

private $secret;

public $access_token;

function __construct($apikey, $secret) {

$this->key = $apikey;

$this->secret = $secret;

}

public function getAuthenticationUrl($baseURL, $redirectURL, $parameters = []) {

$parameters['redirect_uri'] = $redirectURL;

$url = $baseURL . "?client_id={$this->key}";

foreach ($parameters as $key => $value)

$url .= '&' . urlencode($key) . '=' . urlencode($value);

return $url;

}

public function getAccessToken($grant_type = 'authorization_code', array $parameters) {

if ($parameters['state'] != \Idno\Core\site()->plugins()->get('Bitly')->getState())

throw new \Exception('State value not correct, possible CSRF attempt.');

unset($parameters['state']);

$parameters['client_id'] = $this->key;

$parameters['client_secret'] = $this->secret;

$parameters['grant_type'] = $grant_type;

return \Idno\Core\Webservice::post(\IdnoPlugins\Bitly\Main::$TOKEN_ENDPOINT, $parameters);

}

public function setAccessToken($token) {

$this->access_token = $token;

}

}

}