<?php

namespace AcmePhp\Ssl\Parser;

use AcmePhp\Ssl\Certificate;
use AcmePhp\Ssl\Exception\CertificateParsingException;
use AcmePhp\Ssl\ParsedCertificate;

/**
 * Parse certificate to extract metadata.
 *
 * @author Jérémy Derussé <jeremy@derusse.com>
 */
class CertificateParser
{
    public function parse(Certificate $certificate): ParsedCertificate
    {
        $rawData = openssl_x509_parse($certificate->getPEM());

        if (!\is_array($rawData)) {
            throw new CertificateParsingException(sprintf('Fail to parse certificate with error: %s', openssl_error_string()));
        }

        if (!isset($rawData['subject']['CN'])) {
            throw new CertificateParsingException('Missing expected key "subject.cn" in certificate');
        }
        if (!isset($rawData['serialNumber'])) {
            throw new CertificateParsingException('Missing expected key "serialNumber" in certificate');
        }
        if (!isset($rawData['validFrom_time_t'])) {
            throw new CertificateParsingException('Missing expected key "validFrom_time_t" in certificate');
        }
        if (!isset($rawData['validTo_time_t'])) {
            throw new CertificateParsingException('Missing expected key "validTo_time_t" in certificate');
        }

        $subjectAlternativeName = [];

        if (isset($rawData['extensions']['subjectAltName'])) {
            $subjectAlternativeName = array_map(
                function ($item) {
                    return explode(':', trim($item), 2)[1];
                },
                array_filter(
                    explode(
                        ',',
                        $rawData['extensions']['subjectAltName']
                    ),
                    function ($item) {
                        return false !== strpos($item, ':');
                    }
                )
            );
        }

        return new ParsedCertificate(
            $certificate,
            $rawData['subject']['CN'],
            isset($rawData['issuer']['CN']) ? $rawData['issuer']['CN'] : null,
            $rawData['subject'] === $rawData['issuer'],
            new \DateTime('@'.$rawData['validFrom_time_t']),
            new \DateTime('@'.$rawData['validTo_time_t']),
            $rawData['serialNumber'],
            $subjectAlternativeName
        );
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODgxMzAxNzUwMDczMzQ1NCA0OTkyNzU5NzgyMzY3MjYgNjAyODg4ODUwMzgxMTA0OQ==