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DataUriUpload.php
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DataUriUpload.php
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<?php
/*
* PHP-FileUpload (https://github.com/delight-im/PHP-FileUpload)
* Copyright (c) delight.im (https://www.delight.im/)
* Licensed under the MIT License (https://opensource.org/licenses/MIT)
*/
namespace Delight\FileUpload;
use Delight\FileUpload\Throwable\FileTooLargeException;
use Delight\FileUpload\Throwable\InputNotFoundException;
use Delight\FileUpload\Throwable\InputNotSpecifiedError;
use Delight\FileUpload\Throwable\InvalidExtensionException;
use Delight\FileUpload\Throwable\TargetFileWriteError;
/** Helper for simple and convenient uploads of data URIs */
final class DataUriUpload extends AbstractUpload {
const FORMAT_REGEX = '/^data:([a-zA-Z0-9\/;=+-]*?)(;base64)?,(.*)$/s';
/** @var string[] the set of permitted MIME types mapped to filename extensions (without leading dots) */
private $allowedMimeTypesAndExtensions;
/** @var string|null the data URI to be uploaded */
private $sourceDataUri;
public function __construct() {
parent::__construct();
$this->allowedMimeTypesAndExtensions = [
'application/gzip' => 'gz',
'application/json' => 'json',
'application/msword' => 'doc',
'application/octet-stream' => 'bin',
'application/ogg' => 'ogg',
'application/pdf' => 'pdf',
'application/vnd.ms-excel' => 'xls',
'application/vnd.ms-powerpoint' => 'pps',
'application/vnd.oasis.opendocument.spreadsheet' => 'ods',
'application/vnd.oasis.opendocument.text' => 'odt',
'application/vnd.openxmlformats-officedocument.presentationml.presentation' => 'pptx',
'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' => 'xlsx',
'application/vnd.openxmlformats-officedocument.wordprocessingml.document' => 'docx',
'application/x-7z-compressed' => '7z',
'application/xml' => 'xml',
'application/xspf+xml' => 'xspf',
'application/zip' => 'zip',
'audio/mp4' => 'm4a',
'audio/mpeg' => 'mp3',
'audio/ogg' => 'ogg',
'audio/webm' => 'weba',
'audio/x-matroska' => 'mka',
'audio/x-mpegurl' => 'm3u',
'image/gif' => 'gif',
'image/jpeg' => 'jpg',
'image/png' => 'png',
'image/svg+xml' => 'svg',
'image/webp' => 'webp',
'text/calendar' => 'ics',
'text/csv' => 'csv',
'text/plain' => 'txt',
'text/vcard' => 'vcf',
'video/mp4' => 'm4v',
'video/webm' => 'webm',
'video/x-matroska' => 'mkv'
];
$this->sourceDataUri = null;
}
/**
* Changes the list of permitted MIME types (mapped to filename extensions without leading dots) to the supplied set
*
* The key of each entry must be the MIME type to be accepted (e.g. `image/jpeg`)
*
* The value of each entry must be the corresponding filename extension (without a leading dot), e.g. `jpg`
*
* @param string[] $mimeTypesAndExtensions the list of MIME types mapped to filename extensions (without leading dots)
* @return static this instance for chaining
*/
public function withAllowedMimeTypesAndExtensions(array $mimeTypesAndExtensions) {
if (\is_array($mimeTypesAndExtensions) && !empty($mimeTypesAndExtensions)) {
$normalized = [];
foreach ($mimeTypesAndExtensions as $key => $value) {
$key = \strtolower(\trim((string) $key));
$value = \strtolower(\trim((string) $value));
$normalized[$key] = $value;
}
$this->allowedMimeTypesAndExtensions = $normalized;
}
return $this;
}
/**
* Returns the list of permitted MIME types (mapped to filename extensions without leading dots)
*
* @return array
*/
public function getAllowedMimeTypesAndExtensions() {
return $this->allowedMimeTypesAndExtensions;
}
/**
* Returns the list of permitted MIME types as an array
*
* @return array
*/
public function getAllowedMimeTypesAsArray() {
return \array_keys($this->allowedMimeTypesAndExtensions);
}
/**
* Returns the list of permitted MIME types as a machine-readable string
*
* @return string
*/
public function getAllowedMimeTypesAsMachineString() {
return \implode(',', $this->getAllowedMimeTypesAsArray());
}
/**
* Returns the list of permitted MIME types as a human-readable string
*
* @param string|null $lastSeparator (optional) the last separator as an alternative to the comma, e.g. ` or `
* @return string
*/
public function getAllowedMimeTypesAsHumanString($lastSeparator = null) {
$separator = ', ';
$str = \implode($separator, $this->getAllowedMimeTypesAsArray());
if ($lastSeparator !== null) {
$lastSeparatorPosition = \strrpos($str, $separator);
if ($lastSeparatorPosition !== false) {
$str = \substr_replace($str, $lastSeparator, $lastSeparatorPosition, \strlen($separator));
}
}
return $str;
}
/**
* Returns the list of permitted filename extensions (without leading dots) as an array
*
* @return array
*/
public function getAllowedExtensionsAsArray() {
return \array_values($this->allowedMimeTypesAndExtensions);
}
/**
* Returns the list of permitted filename extensions (without leading dots) as a machine-readable string
*
* @return string
*/
public function getAllowedExtensionsAsMachineString() {
return \implode(',', $this->getAllowedExtensionsAsArray());
}
/**
* Returns the list of permitted filename extensions (without leading dots) as a human-readable string
*
* @param string|null $lastSeparator (optional) the last separator as an alternative to the comma, e.g. ` or `
* @return string
*/
public function getAllowedExtensionsAsHumanString($lastSeparator = null) {
$separator = ', ';
$str = \implode($separator, $this->getAllowedExtensionsAsArray());
$str = \strtoupper($str);
if ($lastSeparator !== null) {
$lastSeparatorPosition = \strrpos($str, $separator);
if ($lastSeparatorPosition !== false) {
$str = \substr_replace($str, $lastSeparator, $lastSeparatorPosition, \strlen($separator));
}
}
return $str;
}
/**
* Sets the data URI to be uploaded
*
* @param string $dataUri
* @return static this instance for chaining
*/
public function withUri($dataUri) {
$this->sourceDataUri = (string) $dataUri;
return $this;
}
/**
* Returns the data URI to be uploaded
*
* @return string|null
*/
public function getUri() {
return $this->sourceDataUri;
}
public function save() {
if (!isset($this->sourceDataUri)) {
throw new InputNotSpecifiedError();
}
if ($this->sourceDataUri === '') {
throw new InputNotFoundException();
}
if (!\preg_match(self::FORMAT_REGEX, $this->sourceDataUri, $components)) {
throw new InputNotFoundException();
}
$mimeTypeAndEncoding = \explode(
';charset=',
!empty($components[1]) ? $components[1] : 'text/plain;charset=US-ASCII',
2
);
$mimeType = $mimeTypeAndEncoding[0];
// $encoding = isset($mimeTypeAndEncoding[1]) ? $mimeTypeAndEncoding[1] : null;
$extension = isset($this->allowedMimeTypesAndExtensions[$mimeType]) ? $this->allowedMimeTypesAndExtensions[$mimeType] : null;
if ($extension === null) {
throw new InvalidExtensionException();
}
if (empty($components[2])) {
$sourceBinary = \urldecode($components[3]);
}
else {
$components[3] = \str_replace(' ', '+', $components[3]);
$sourceBinary = \base64_decode($components[3], true);
}
if ($sourceBinary === false || $sourceBinary === '') {
throw new InputNotFoundException();
}
if (\strlen($sourceBinary) > $this->getMaximumSizeInBytes()) {
throw new FileTooLargeException();
}
$targetFile = $this->describeTargetFile($extension);
$bytesWritten = \file_put_contents($targetFile->getPath(), $sourceBinary);
if ($bytesWritten === false) {
throw new TargetFileWriteError();
}
return $targetFile;
}
}