66 lines
1.9 KiB
PHP
66 lines
1.9 KiB
PHP
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<?php
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/*
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* This file is part of the Acme PHP project.
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*
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* (c) Titouan Galopin <galopintitouan@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace AcmePhp\Ssl\Parser;
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use AcmePhp\Ssl\Exception\KeyFormatException;
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use AcmePhp\Ssl\Exception\KeyParsingException;
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use AcmePhp\Ssl\Key;
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use AcmePhp\Ssl\ParsedKey;
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/**
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* Parse keys to extract metadata.
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*
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* @author Titouan Galopin
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*/
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class KeyParser
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{
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public function parse(Key $key): ParsedKey
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{
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try {
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$resource = $key->getResource();
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} catch (KeyFormatException $e) {
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throw new KeyParsingException('Fail to load resource for key', 0, $e);
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}
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$rawData = openssl_pkey_get_details($resource);
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// PHP 8 automatically frees the key instance and deprecates the function
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if (\PHP_VERSION_ID < 80000) {
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openssl_free_key($resource);
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}
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if (!\is_array($rawData)) {
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throw new KeyParsingException(sprintf('Fail to parse key with error: %s', openssl_error_string()));
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}
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foreach (['type', 'key', 'bits'] as $requiredKey) {
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if (!isset($rawData[$requiredKey])) {
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throw new KeyParsingException(sprintf('Missing expected key "%s" in OpenSSL key', $requiredKey));
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}
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}
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$details = [];
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if (OPENSSL_KEYTYPE_RSA === $rawData['type']) {
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$details = $rawData['rsa'];
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} elseif (OPENSSL_KEYTYPE_DSA === $rawData['type']) {
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$details = $rawData['dsa'];
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} elseif (OPENSSL_KEYTYPE_DH === $rawData['type']) {
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$details = $rawData['dh'];
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} elseif (OPENSSL_KEYTYPE_EC === $rawData['type']) {
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$details = $rawData['ec'];
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}
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return new ParsedKey($key, $rawData['key'], $rawData['bits'], $rawData['type'], $details);
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}
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}
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