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vendor/symfony/mime/Part/SMimePart.php

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+<?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\Part;
+
+use Symfony\Component\Mime\Header\Headers;
+
+/**
+ * @author Sebastiaan Stok <s.stok@rollerscapes.net>
+ */
+class SMimePart extends AbstractPart
+{
+    /** @internal */
+    protected Headers $_headers;
+
+    private iterable|string $body;
+    private string $type;
+    private string $subtype;
+    private array $parameters;
+
+    public function __construct(iterable|string $body, string $type, string $subtype, array $parameters)
+    {
+        parent::__construct();
+
+        $this->body = $body;
+        $this->type = $type;
+        $this->subtype = $subtype;
+        $this->parameters = $parameters;
+    }
+
+    public function getMediaType(): string
+    {
+        return $this->type;
+    }
+
+    public function getMediaSubtype(): string
+    {
+        return $this->subtype;
+    }
+
+    public function bodyToString(): string
+    {
+        if (\is_string($this->body)) {
+            return $this->body;
+        }
+
+        $body = '';
+        foreach ($this->body as $chunk) {
+            $body .= $chunk;
+        }
+        $this->body = $body;
+
+        return $body;
+    }
+
+    public function bodyToIterable(): iterable
+    {
+        if (\is_string($this->body)) {
+            yield $this->body;
+
+            return;
+        }
+
+        $body = '';
+        foreach ($this->body as $chunk) {
+            $body .= $chunk;
+            yield $chunk;
+        }
+        $this->body = $body;
+    }
+
+    public function getPreparedHeaders(): Headers
+    {
+        $headers = clone parent::getHeaders();
+
+        $headers->setHeaderBody('Parameterized', 'Content-Type', $this->getMediaType().'/'.$this->getMediaSubtype());
+
+        foreach ($this->parameters as $name => $value) {
+            $headers->setHeaderParameter('Content-Type', $name, $value);
+        }
+
+        return $headers;
+    }
+
+    public function __sleep(): array
+    {
+        // convert iterables to strings for serialization
+        if (is_iterable($this->body)) {
+            $this->body = $this->bodyToString();
+        }
+
+        $this->_headers = $this->getHeaders();
+
+        return ['_headers', 'body', 'type', 'subtype', 'parameters'];
+    }
+
+    public function __wakeup(): void
+    {
+        $r = new \ReflectionProperty(AbstractPart::class, 'headers');
+        $r->setValue($this, $this->_headers);
+        unset($this->_headers);
+    }
+}