提交代码

vendor/symfony/mime/Part/Multipart/FormDataPart.php

@@ -0,0 +1,96 @@
+<?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\Multipart;
+
+use Symfony\Component\Mime\Exception\InvalidArgumentException;
+use Symfony\Component\Mime\Part\AbstractMultipartPart;
+use Symfony\Component\Mime\Part\DataPart;
+use Symfony\Component\Mime\Part\TextPart;
+
+/**
+ * Implements RFC 7578.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @experimental in 4.3
+ */
+final class FormDataPart extends AbstractMultipartPart
+{
+    private $fields = [];
+
+    /**
+     * @param (string|array|DataPart)[] $fields
+     */
+    public function __construct(array $fields = [])
+    {
+        parent::__construct();
+
+        foreach ($fields as $name => $value) {
+            if (!\is_string($value) && !\is_array($value) && !$value instanceof TextPart) {
+                throw new InvalidArgumentException(sprintf('A form field value can only be a string, an array, or an instance of TextPart ("%s" given).', \is_object($value) ? \get_class($value) : \gettype($value)));
+            }
+
+            $this->fields[$name] = $value;
+        }
+        // HTTP does not support \r\n in header values
+        $this->getHeaders()->setMaxLineLength(PHP_INT_MAX);
+    }
+
+    public function getMediaSubtype(): string
+    {
+        return 'form-data';
+    }
+
+    public function getParts(): array
+    {
+        return $this->prepareFields($this->fields);
+    }
+
+    private function prepareFields(array $fields): array
+    {
+        $values = [];
+        array_walk_recursive($fields, function ($item, $key) use (&$values) {
+            if (!\is_array($item)) {
+                $values[] = $this->preparePart($key, $item);
+            }
+        });
+
+        return $values;
+    }
+
+    private function preparePart($name, $value): TextPart
+    {
+        if (\is_string($value)) {
+            return $this->configurePart($name, new TextPart($value, 'utf-8', 'plain', '8bit'));
+        }
+
+        return $this->configurePart($name, $value);
+    }
+
+    private function configurePart(string $name, TextPart $part): TextPart
+    {
+        static $r;
+
+        if (null === $r) {
+            $r = new \ReflectionProperty(TextPart::class, 'encoding');
+            $r->setAccessible(true);
+        }
+
+        $part->setDisposition('form-data');
+        $part->setName($name);
+        // HTTP does not support \r\n in header values
+        $part->getHeaders()->setMaxLineLength(PHP_INT_MAX);
+        $r->setValue($part, '8bit');
+
+        return $part;
+    }
+}