/home/kueuepay/www/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Shared/PasswordHasher.php
<?php

namespace PhpOffice\PhpSpreadsheet\Shared;

use PhpOffice\PhpSpreadsheet\Exception as SpException;
use PhpOffice\PhpSpreadsheet\Worksheet\Protection;

class PasswordHasher
{
    const MAX_PASSWORD_LENGTH = 255;

    /**
     * Get algorithm name for PHP.
     */
    private static function getAlgorithm(string $algorithmName): string
    {
        if (!$algorithmName) {
            return '';
        }

        // Mapping between algorithm name in Excel and algorithm name in PHP
        $mapping = [
            Protection::ALGORITHM_MD2 => 'md2',
            Protection::ALGORITHM_MD4 => 'md4',
            Protection::ALGORITHM_MD5 => 'md5',
            Protection::ALGORITHM_SHA_1 => 'sha1',
            Protection::ALGORITHM_SHA_256 => 'sha256',
            Protection::ALGORITHM_SHA_384 => 'sha384',
            Protection::ALGORITHM_SHA_512 => 'sha512',
            Protection::ALGORITHM_RIPEMD_128 => 'ripemd128',
            Protection::ALGORITHM_RIPEMD_160 => 'ripemd160',
            Protection::ALGORITHM_WHIRLPOOL => 'whirlpool',
        ];

        if (array_key_exists($algorithmName, $mapping)) {
            return $mapping[$algorithmName];
        }

        throw new SpException('Unsupported password algorithm: ' . $algorithmName);
    }

    /**
     * Create a password hash from a given string.
     *
     * This method is based on the spec at:
     * https://interoperability.blob.core.windows.net/files/MS-OFFCRYPTO/[MS-OFFCRYPTO].pdf
     * 2.3.7.1 Binary Document Password Verifier Derivation Method 1
     *
     * It replaces a method based on the algorithm provided by
     * Daniel Rentz of OpenOffice and the PEAR package
     * Spreadsheet_Excel_Writer by Xavier Noguer <xnoguer@rezebra.com>.
     *
     * Scrutinizer will squawk at the use of bitwise operations here,
     * but it should ultimately pass.
     *
     * @param string $password Password to hash
     */
    private static function defaultHashPassword(string $password): string
    {
        $verifier = 0;
        $pwlen = strlen($password);
        $passwordArray = pack('c', $pwlen) . $password;
        for ($i = $pwlen; $i >= 0; --$i) {
            $intermediate1 = (($verifier & 0x4000) === 0) ? 0 : 1;
            $intermediate2 = 2 * $verifier;
            $intermediate2 = $intermediate2 & 0x7fff;
            $intermediate3 = $intermediate1 | $intermediate2;
            $verifier = $intermediate3 ^ ord($passwordArray[$i]);
        }
        $verifier ^= 0xCE4B;

        return strtoupper(dechex($verifier));
    }

    /**
     * Create a password hash from a given string by a specific algorithm.
     *
     * 2.4.2.4 ISO Write Protection Method
     *
     * @see https://docs.microsoft.com/en-us/openspecs/office_file_formats/ms-offcrypto/1357ea58-646e-4483-92ef-95d718079d6f
     *
     * @param string $password Password to hash
     * @param string $algorithm Hash algorithm used to compute the password hash value
     * @param string $salt Pseudorandom string
     * @param int $spinCount Number of times to iterate on a hash of a password
     *
     * @return string Hashed password
     */
    public static function hashPassword(string $password, string $algorithm = '', string $salt = '', int $spinCount = 10000): string
    {
        if (strlen($password) > self::MAX_PASSWORD_LENGTH) {
            throw new SpException('Password exceeds ' . self::MAX_PASSWORD_LENGTH . ' characters');
        }
        $phpAlgorithm = self::getAlgorithm($algorithm);
        if (!$phpAlgorithm) {
            return self::defaultHashPassword($password);
        }

        $saltValue = base64_decode($salt);
        $encodedPassword = mb_convert_encoding($password, 'UCS-2LE', 'UTF-8');

        $hashValue = hash($phpAlgorithm, $saltValue . /** @scrutinizer ignore-type */ $encodedPassword, true);
        for ($i = 0; $i < $spinCount; ++$i) {
            $hashValue = hash($phpAlgorithm, $hashValue . pack('L', $i), true);
        }

        return base64_encode($hashValue);
    }
}
Path: home/kueuepay/www/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Shared
Access Token
Developer
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Get Access Token

Get access token to initiates payment transaction.

Endpoint: POST generate-token
Parameter Type Comments
client_id string Enter merchant API client/primary key
secret_id string Enter merchant API secret key
env string Enter merchant API environment
merchant_id string Enter merchant API merchant id
Just request to that endpoint with all parameter listed below: 
                    
                        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"
                        
}
Base URL Initiate Payment