<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Mime\Part\Multipart;
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use Symfony\Component\Mime\Exception\InvalidArgumentException;
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use Symfony\Component\Mime\Part\AbstractMultipartPart;
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use Symfony\Component\Mime\Part\DataPart;
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use Symfony\Component\Mime\Part\TextPart;
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/**
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* Implements RFC 7578.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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final class FormDataPart extends AbstractMultipartPart
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{
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private $fields = [];
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/**
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* @param array<string|array|DataPart> $fields
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*/
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public function __construct(array $fields = [])
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{
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parent::__construct();
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foreach ($fields as $name => $value) {
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if (!\is_string($value) && !\is_array($value) && !$value instanceof TextPart) {
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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($value)));
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}
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$this->fields[$name] = $value;
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}
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// HTTP does not support \r\n in header values
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$this->getHeaders()->setMaxLineLength(\PHP_INT_MAX);
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}
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public function getMediaSubtype(): string
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{
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return 'form-data';
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}
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public function getParts(): array
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{
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return $this->prepareFields($this->fields);
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}
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private function prepareFields(array $fields): array
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{
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$values = [];
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$prepare = function ($item, $key, $root = null) use (&$values, &$prepare) {
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$fieldName = $root ? sprintf('%s[%s]', $root, $key) : $key;
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if (\is_array($item)) {
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array_walk($item, $prepare, $fieldName);
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return;
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}
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$values[] = $this->preparePart($fieldName, $item);
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};
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array_walk($fields, $prepare);
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return $values;
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}
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private function preparePart(string $name, $value): TextPart
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{
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if (\is_string($value)) {
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return $this->configurePart($name, new TextPart($value, 'utf-8', 'plain', '8bit'));
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}
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return $this->configurePart($name, $value);
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}
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private function configurePart(string $name, TextPart $part): TextPart
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{
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static $r;
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if (null === $r) {
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$r = new \ReflectionProperty(TextPart::class, 'encoding');
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$r->setAccessible(true);
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}
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$part->setDisposition('form-data');
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$part->setName($name);
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// HTTP does not support \r\n in header values
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$part->getHeaders()->setMaxLineLength(\PHP_INT_MAX);
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$r->setValue($part, '8bit');
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return $part;
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}
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}
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