* * 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 */ 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 = []; $prepare = function ($item, $key, $root = null) use (&$values, &$prepare) { $fieldName = $root ? sprintf('%s[%s]', $root, $key) : $key; if (\is_array($item)) { array_walk($item, $prepare, $fieldName); return; } $values[] = $this->preparePart($fieldName, $item); }; array_walk($fields, $prepare); return $values; } private function preparePart(string $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; } }