<?php

namespace AcmePhp\Ssl\Parser;

use AcmePhp\Ssl\Exception\KeyFormatException;
use AcmePhp\Ssl\Exception\KeyParsingException;
use AcmePhp\Ssl\Key;
use AcmePhp\Ssl\ParsedKey;

/**
 * Parse keys to extract metadata.
 *
 * @author Titouan Galopin
 */
class KeyParser
{
    public function parse(Key $key): ParsedKey
    {
        try {
            $resource = $key->getResource();
        } catch (KeyFormatException $e) {
            throw new KeyParsingException('Fail to load resource for key', 0, $e);
        }

        $rawData = openssl_pkey_get_details($resource);

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

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

        foreach (['type', 'key', 'bits'] as $requiredKey) {
            if (!isset($rawData[$requiredKey])) {
                throw new KeyParsingException(sprintf('Missing expected key "%s" in OpenSSL key', $requiredKey));
            }
        }

        $details = [];

        if (OPENSSL_KEYTYPE_RSA === $rawData['type']) {
            $details = $rawData['rsa'];
        } elseif (OPENSSL_KEYTYPE_DSA === $rawData['type']) {
            $details = $rawData['dsa'];
        } elseif (OPENSSL_KEYTYPE_DH === $rawData['type']) {
            $details = $rawData['dh'];
        } elseif (OPENSSL_KEYTYPE_EC === $rawData['type']) {
            $details = $rawData['ec'];
        }

        return new ParsedKey($key, $rawData['key'], $rawData['bits'], $rawData['type'], $details);
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NzA3MDY2OTkxMDU3ODQ0IDUwODA0ODkyNjc5ODk2MTEgOTM5NTU3NDQzMDkyNzY1Nw==