112 lines
3.2 KiB
PHP
112 lines
3.2 KiB
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\RuntimeException;
|
||
|
|
use Symfony\Component\Mime\Part\SMimePart;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @author Sebastiaan Stok <s.stok@rollerscapes.net>
|
||
|
|
*
|
||
|
|
* @internal
|
||
|
|
*/
|
||
|
|
abstract class SMime
|
||
|
|
{
|
||
|
|
protected function normalizeFilePath(string $path): string
|
||
|
|
{
|
||
|
|
if (!file_exists($path)) {
|
||
|
|
throw new RuntimeException(sprintf('File does not exist: "%s".', $path));
|
||
|
|
}
|
||
|
|
|
||
|
|
return 'file://'.str_replace('\\', '/', realpath($path));
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function iteratorToFile(iterable $iterator, $stream): void
|
||
|
|
{
|
||
|
|
foreach ($iterator as $chunk) {
|
||
|
|
fwrite($stream, $chunk);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function convertMessageToSMimePart($stream, string $type, string $subtype): SMimePart
|
||
|
|
{
|
||
|
|
rewind($stream);
|
||
|
|
|
||
|
|
$headers = '';
|
||
|
|
|
||
|
|
while (!feof($stream)) {
|
||
|
|
$buffer = fread($stream, 78);
|
||
|
|
$headers .= $buffer;
|
||
|
|
|
||
|
|
// Detect ending of header list
|
||
|
|
if (preg_match('/(\r\n\r\n|\n\n)/', $headers, $match)) {
|
||
|
|
$headersPosEnd = strpos($headers, $headerBodySeparator = $match[0]);
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$headers = $this->getMessageHeaders(trim(substr($headers, 0, $headersPosEnd)));
|
||
|
|
|
||
|
|
fseek($stream, $headersPosEnd + \strlen($headerBodySeparator));
|
||
|
|
|
||
|
|
return new SMimePart($this->getStreamIterator($stream), $type, $subtype, $this->getParametersFromHeader($headers['content-type']));
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function getStreamIterator($stream): iterable
|
||
|
|
{
|
||
|
|
while (!feof($stream)) {
|
||
|
|
yield str_replace("\n", "\r\n", str_replace("\r\n", "\n", fread($stream, 16372)));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private function getMessageHeaders(string $headerData): array
|
||
|
|
{
|
||
|
|
$headers = [];
|
||
|
|
$headerLines = explode("\r\n", str_replace("\n", "\r\n", str_replace("\r\n", "\n", $headerData)));
|
||
|
|
$currentHeaderName = '';
|
||
|
|
|
||
|
|
// Transform header lines into an associative array
|
||
|
|
foreach ($headerLines as $headerLine) {
|
||
|
|
// Empty lines between headers indicate a new mime-entity
|
||
|
|
if ('' === $headerLine) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Handle headers that span multiple lines
|
||
|
|
if (!str_contains($headerLine, ':')) {
|
||
|
|
$headers[$currentHeaderName] .= ' '.trim($headerLine);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
$header = explode(':', $headerLine, 2);
|
||
|
|
$currentHeaderName = strtolower($header[0]);
|
||
|
|
$headers[$currentHeaderName] = trim($header[1]);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $headers;
|
||
|
|
}
|
||
|
|
|
||
|
|
private function getParametersFromHeader(string $header): array
|
||
|
|
{
|
||
|
|
$params = [];
|
||
|
|
|
||
|
|
preg_match_all('/(?P<name>[a-z-0-9]+)=(?P<value>"[^"]+"|(?:[^\s;]+|$))(?:\s+;)?/i', $header, $matches);
|
||
|
|
|
||
|
|
foreach ($matches['value'] as $pos => $paramValue) {
|
||
|
|
$params[$matches['name'][$pos]] = trim($paramValue, '"');
|
||
|
|
}
|
||
|
|
|
||
|
|
return $params;
|
||
|
|
}
|
||
|
|
}
|