<?php

namespace AcmePhp\Ssl;

use AcmePhp\Ssl\Exception\KeyFormatException;
use Webmozart\Assert\Assert;

/**
 * Represent a SSL Private key.
 *
 * @author Jérémy Derussé <jeremy@derusse.com>
 */
class PrivateKey extends Key
{
    /**
     * {@inheritdoc}
     */
    public function getResource()
    {
        if (!$resource = openssl_pkey_get_private($this->keyPEM)) {
            throw new KeyFormatException(sprintf('Failed to convert key into resource: %s', openssl_error_string()));
        }

        return $resource;
    }

    public function getPublicKey(): PublicKey
    {
        $resource = $this->getResource();
        if (!$details = openssl_pkey_get_details($resource)) {
            throw new KeyFormatException(sprintf('Failed to extract public key: %s', openssl_error_string()));
        }

        // PHP 8 automatically frees the key instance and deprecates the function
        if (\PHP_VERSION_ID < 80000) {
            openssl_free_key($resource);
        }

        return new PublicKey($details['key']);
    }

    public static function fromDER(string $keyDER): self
    {
        Assert::stringNotEmpty($keyDER, __METHOD__.'::$keyDER should be a non-empty string. Got %s');

        $der = base64_encode($keyDER);
        $lines = str_split($der, 65);
        array_unshift($lines, '-----BEGIN PRIVATE KEY-----');
        $lines[] = '-----END PRIVATE KEY-----';
        $lines[] = '';

        return new self(implode("\n", $lines));
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MTQ5NzA2Mzg0NjY3NzQ4NiAyMzI4ODk5NzY1OTkzNzIgMTMxNjA3NjQ3MTUwMDk0OA==