1 files changed, 150 insertions, 0 deletions
diff --git a/vendor/symfony/mime/Part/DataPart.php b/vendor/symfony/mime/Part/DataPart.php
new file mode 100644
index 0000000000..1cfb1e69b0
--- /dev/null
+++ b/vendor/symfony/mime/Part/DataPart.php
@@ -0,0 +1,150 @@
+<?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\Exception\InvalidArgumentException;
+use Symfony\Component\Mime\Header\Headers;
+use Symfony\Component\Mime\MimeTypes;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @experimental in 4.3
+ */
+class DataPart extends TextPart
+{
+    private static $mimeTypes;
+
+    private $filename;
+    private $mediaType;
+    private $cid;
+    private $handle;
+
+    /**
+     * @param resource|string $body
+     */
+    public function __construct($body, string $filename = null, string $contentType = null, string $encoding = null)
+    {
+        if (null === $contentType) {
+            $contentType = 'application/octet-stream';
+        }
+        list($this->mediaType, $subtype) = explode('/', $contentType);
+
+        parent::__construct($body, null, $subtype, $encoding);
+
+        $this->filename = $filename;
+        $this->setName($filename);
+        $this->setDisposition('attachment');
+    }
+
+    public static function fromPath(string $path, string $name = null, string $contentType = null): self
+    {
+        // FIXME: if file is not readable, exception?
+
+        if (null === $contentType) {
+            $ext = strtolower(substr($path, strrpos($path, '.') + 1));
+            if (null === self::$mimeTypes) {
+                self::$mimeTypes = new MimeTypes();
+            }
+            $contentType = self::$mimeTypes->getMimeTypes($ext)[0] ?? 'application/octet-stream';
+        }
+
+        if (false === $handle = @fopen($path, 'r', false)) {
+            throw new InvalidArgumentException(sprintf('Unable to open path "%s"', $path));
+        }
+        $p = new self($handle, $name ?: basename($path), $contentType);
+        $p->handle = $handle;
+
+        return $p;
+    }
+
+    /**
+     * @return $this
+     */
+    public function asInline()
+    {
+        return $this->setDisposition('inline');
+    }
+
+    public function getContentId(): string
+    {
+        return $this->cid ?: $this->cid = $this->generateContentId();
+    }
+
+    public function hasContentId(): bool
+    {
+        return null !== $this->cid;
+    }
+
+    public function getMediaType(): string
+    {
+        return $this->mediaType;
+    }
+
+    public function getPreparedHeaders(): Headers
+    {
+        $headers = parent::getPreparedHeaders();
+
+        if (null !== $this->cid) {
+            $headers->setHeaderBody('Id', 'Content-ID', $this->cid);
+        }
+
+        if (null !== $this->filename) {
+            $headers->setHeaderParameter('Content-Disposition', 'filename', $this->filename);
+        }
+
+        return $headers;
+    }
+
+    private function generateContentId(): string
+    {
+        return bin2hex(random_bytes(16)).'@symfony';
+    }
+
+    public function __destruct()
+    {
+        if (null !== $this->handle && \is_resource($this->handle)) {
+            fclose($this->handle);
+        }
+    }
+
+    public function __sleep()
+    {
+        // converts the body to a string
+        parent::__sleep();
+
+        $this->_parent = [];
+        foreach (['body', 'charset', 'subtype', 'disposition', 'name', 'encoding'] as $name) {
+            $r = new \ReflectionProperty(TextPart::class, $name);
+            $r->setAccessible(true);
+            $this->_parent[$name] = $r->getValue($this);
+        }
+        $this->_headers = $this->getHeaders();
+
+        return ['_headers', '_parent', 'filename', 'mediaType'];
+    }
+
+    public function __wakeup()
+    {
+        $r = new \ReflectionProperty(AbstractPart::class, 'headers');
+        $r->setAccessible(true);
+        $r->setValue($this, $this->_headers);
+        unset($this->_headers);
+
+        foreach (['body', 'charset', 'subtype', 'disposition', 'name', 'encoding'] as $name) {
+            $r = new \ReflectionProperty(TextPart::class, $name);
+            $r->setAccessible(true);
+            $r->setValue($this, $this->_parent[$name]);
+        }
+        unset($this->_parent);
+    }
+}