Pixidos\GPWebPay\Signer\Signer

Complexity

Total Complexity

4

Size/Duplication

Total Lines	32
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	4
Bugs	0	Features	2

3 Methods

Rating	Name	Duplication	Size	Complexity
A	sign()	0	12	2
A	__construct()	0	5	1
A	verify()	0	7	1

<?php

/**
 * This file is part of the Pixidos package.
 *
 *  (c) Ondra Votava <ondra@votava.dev>
 *
 *  For the full copyright and license information, please view the LICENSE
 *  file that was distributed with this source code.
 *
 */

declare(strict_types=1);

namespace Pixidos\GPWebPay\Signer;

use Pixidos\GPWebPay\Exceptions\SignerException;
use Pixidos\GPWebPay\Signer\Key\PrivateKey;
use Pixidos\GPWebPay\Signer\Key\PublicKey;
use Stringable;

class Signer implements SignerInterface
{
    public function __construct(
        private readonly PrivateKey $privateKey,
        private readonly PublicKey $publicKey,
        private readonly string|int $algorithm = OPENSSL_ALGO_SHA1
    ) {
    }


    public function sign(array $params): string
    {
        $digestText = implode('|', $params);

        openssl_sign($digestText, $digest, $this->privateKey->getKey(), $this->algorithm);
        // @codeCoverageIgnoreStart
        if (!is_string($digest)) {
            throw new SignerException('Unable to sign data');
        }
        // @codeCoverageIgnoreEnd

        return base64_encode($digest);
    }


    public function verify(array $params, string $digest): bool
    {
        $data = implode('|', $params);
        $decode = (string)base64_decode($digest, true);
        $ok = openssl_verify($data, $decode, $this->publicKey->getKey(), $this->algorithm);

        return 1 === $ok;
    }
}