<?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;
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use Symfony\Component\Mime\Header\Headers;
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/**
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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abstract class AbstractMultipartPart extends AbstractPart
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{
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private $boundary;
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private $parts = [];
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public function __construct(AbstractPart ...$parts)
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{
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parent::__construct();
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foreach ($parts as $part) {
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$this->parts[] = $part;
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}
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}
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/**
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* @return AbstractPart[]
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*/
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public function getParts(): array
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{
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return $this->parts;
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}
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public function getMediaType(): string
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{
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return 'multipart';
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}
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public function getPreparedHeaders(): Headers
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{
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$headers = parent::getPreparedHeaders();
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$headers->setHeaderParameter('Content-Type', 'boundary', $this->getBoundary());
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return $headers;
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}
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public function bodyToString(): string
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{
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$parts = $this->getParts();
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$string = '';
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foreach ($parts as $part) {
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$string .= '--'.$this->getBoundary()."\r\n".$part->toString()."\r\n";
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}
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$string .= '--'.$this->getBoundary()."--\r\n";
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return $string;
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}
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public function bodyToIterable(): iterable
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{
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$parts = $this->getParts();
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foreach ($parts as $part) {
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yield '--'.$this->getBoundary()."\r\n";
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yield from $part->toIterable();
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yield "\r\n";
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}
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yield '--'.$this->getBoundary()."--\r\n";
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}
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public function asDebugString(): string
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{
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$str = parent::asDebugString();
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foreach ($this->getParts() as $part) {
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$lines = explode("\n", $part->asDebugString());
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$str .= "\n └ ".array_shift($lines);
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foreach ($lines as $line) {
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$str .= "\n |".$line;
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}
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}
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return $str;
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}
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private function getBoundary(): string
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{
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if (null === $this->boundary) {
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$this->boundary = strtr(base64_encode(random_bytes(6)), '+/', '-_');
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}
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return $this->boundary;
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}
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}
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