<?php
/**
 * Encrypt/decrypt with encryptionKey.
 *
 * @author      Alex Bilbie <hello@alexbilbie.com>
 * @copyright   Copyright (c) Alex Bilbie
 * @license     http://mit-license.org/
 *
 * @link        https://github.com/thephpleague/oauth2-server
 */

namespace League\OAuth2\Server;

use Defuse\Crypto\Crypto;
use Defuse\Crypto\Key;
use Exception;
use LogicException;

trait CryptTrait
{
    /**
     * @var string|Key|null
     */
    protected $encryptionKey;

    /**
     * Encrypt data with encryptionKey.
     *
     * @param string $unencryptedData
     *
     * @throws LogicException
     *
     * @return string
     */
    protected function encrypt($unencryptedData)
    {
        try {
            if ($this->encryptionKey instanceof Key) {
                return Crypto::encrypt($unencryptedData, $this->encryptionKey);
            }

            if (\is_string($this->encryptionKey)) {
                return Crypto::encryptWithPassword($unencryptedData, $this->encryptionKey);
            }

            throw new LogicException('Encryption key not set when attempting to encrypt');
        } catch (Exception $e) {
            throw new LogicException($e->getMessage(), 0, $e);
        }
    }

    /**
     * Decrypt data with encryptionKey.
     *
     * @param string $encryptedData
     *
     * @throws LogicException
     *
     * @return string
     */
    protected function decrypt($encryptedData)
    {
        try {
            if ($this->encryptionKey instanceof Key) {
                return Crypto::decrypt($encryptedData, $this->encryptionKey);
            }

            if (\is_string($this->encryptionKey)) {
                return Crypto::decryptWithPassword($encryptedData, $this->encryptionKey);
            }

            throw new LogicException('Encryption key not set when attempting to decrypt');
        } catch (Exception $e) {
            throw new LogicException($e->getMessage(), 0, $e);
        }
    }

    /**
     * Set the encryption key
     *
     * @param string|Key $key
     */
    public function setEncryptionKey($key = null)
    {
        $this->encryptionKey = $key;
    }
}

• [D] AuthorizationValidators
• [D] CodeChallengeVerifiers
• [D] Entities
• [D] Exception
• [D] Grant
• [D] Middleware
• [D] RedirectUriValidators
• [D] Repositories
• [D] RequestTypes
• [D] ResponseTypes
• [F] AuthorizationServer.php
  Delete
• [F] CryptKey.php
  Delete
• [F] CryptTrait.php
  Delete
• [F] RequestAccessTokenEvent.php
  Delete
• [F] RequestEvent.php
  Delete
• [F] RequestRefreshTokenEvent.php
  Delete
• [F] ResourceServer.php
  Delete

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                        Request Example (guzzle)
                        

                        
                            
<?php
                            
 require_once('vendor/autoload.php');
                            
 $client = new \GuzzleHttp\Client();
                            
 $response = $client->request('POST', $base_url. 'v1/generate-token', [
                            
'headers' => [
                            
  'accept' => 'application/json',
                            
  'content-type' => 'application/json',
                            
 ],
                            
'form_params' => [
                            
  'client_id'     => '$client_id',
                            
  'secret_id'     => 'secret_id',
                            
  'env'           => 'env',
                            
  'merchant_id'   => 'merchant_id',
                            
 ],
                            
                            
]);
                            
echo $response->getBody();
                        
                    
                

                    
                        
**Response: SUCCESS (200 OK)**
                        
{
                        
 "message": {
                        
 "success": [
                        
  "Successfully token is generated"
                        
 ]
                        
},
                        
"data": {
                        
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz

                        IyZmQzNDY1IiwidGFnIjoiIn0=",
                        
},
                        
"type": "success"
                        
}
                    
                

                    
                        
**Response: ERROR (400 FAILED)**
                        
{
                        
 "message": {
                        
 "error": [
                        
  "Invalid credentials."
                        
 ]
                        
},
                        
"data": null,
                        
"type": "error"
                        
}