<?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:----NjA0NzIyODcyMDMxNjUyMSA1MjA4ODgyNzU3NDYwNTIyIDIyODUxNzUxMDk2NDc2OTI=