Part-DB.Part-DB-server/src/Helpers/LabelResponse.php

132 lines
4.5 KiB
PHP

<?php
/*
* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
*
* Copyright (C) 2019 - 2022 Jan Böhmer (https://github.com/jbtronics)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
/**
* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
*
* Copyright (C) 2019 - 2022 Jan Böhmer (https://github.com/jbtronics)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
namespace App\Helpers;
use DateTime;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use function ord;
class LabelResponse extends Response
{
public function __construct($content = '', int $status = 200, array $headers = [])
{
parent::__construct($content, $status, $headers);
}
public function setContent($content): static
{
parent::setContent($content);
$this->setAutoEtag();
$this->setAutoLastModified();
return $this;
}
public function prepare(Request $request): static
{
parent::prepare($request);
$this->headers->set('Content-Type', 'application/pdf');
if ('HTTP/1.0' !== $request->server->get('SERVER_PROTOCOL')) {
$this->setProtocolVersion('1.1');
}
$this->ensureIEOverSSLCompatibility($request);
return $this;
}
/**
* Automatically sets the Last-Modified header according the file modification date.
*/
public function setAutoLastModified(): LabelResponse
{
$this->setLastModified(new \DateTimeImmutable());
return $this;
}
/**
* Automatically sets the ETag header according to the checksum of the file.
*/
public function setAutoEtag(): LabelResponse
{
$this->setEtag(base64_encode(hash('sha256', $this->content, true)));
return $this;
}
/**
* Sets the Content-Disposition header with the given filename.
*
* @param string $disposition ResponseHeaderBag::DISPOSITION_INLINE or ResponseHeaderBag::DISPOSITION_ATTACHMENT
* @param string $filename Optionally use this UTF-8 encoded filename instead of the real name of the file
* @param string $filenameFallback A fallback filename, containing only ASCII characters. Defaults to an automatically encoded filename
*
* @return $this
*/
public function setContentDisposition(string $disposition, string $filename, string $filenameFallback = ''): self
{
if ('' === $filenameFallback && (!preg_match('/^[\x20-\x7e]*$/', $filename) || str_contains($filename, '%'))) {
$encoding = mb_detect_encoding($filename, null, true) ?: '8bit';
for ($i = 0, $filenameLength = mb_strlen($filename, $encoding); $i < $filenameLength; ++$i) {
$char = mb_substr($filename, $i, 1, $encoding);
if ('%' === $char || ord($char) < 32 || ord($char) > 126) {
$filenameFallback .= '_';
} else {
$filenameFallback .= $char;
}
}
}
$dispositionHeader = $this->headers->makeDisposition($disposition, $filename, $filenameFallback);
$this->headers->set('Content-Disposition', $dispositionHeader);
return $this;
}
}