Client.php

<?php

namespace IdnoPlugins\Pnut {
    
    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($endpointUrl, $grant_type = 'authorization_code', array $parameters)
        {
            
            if ($parameters['state'] != \Idno\Core\site()->plugins()->get('Pnut')->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\Pnut\Main::$TOKEN_ENDPOINT, $parameters);
            
        }
        
        public function setAccessToken($token)
        {
            $this->access_token = $token;
        }
    
    }
}