270 lines
		
	
	
		
			9.6 KiB
		
	
	
	
		
			PHP
		
	
	
			
		
		
	
	
			270 lines
		
	
	
		
			9.6 KiB
		
	
	
	
		
			PHP
		
	
	
| <?php
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| 
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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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| 
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| namespace Symfony\Component\HttpFoundation\File;
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| 
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| use Symfony\Component\HttpFoundation\File\Exception\CannotWriteFileException;
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| use Symfony\Component\HttpFoundation\File\Exception\ExtensionFileException;
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| use Symfony\Component\HttpFoundation\File\Exception\FileException;
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| use Symfony\Component\HttpFoundation\File\Exception\FileNotFoundException;
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| use Symfony\Component\HttpFoundation\File\Exception\FormSizeFileException;
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| use Symfony\Component\HttpFoundation\File\Exception\IniSizeFileException;
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| use Symfony\Component\HttpFoundation\File\Exception\NoFileException;
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| use Symfony\Component\HttpFoundation\File\Exception\NoTmpDirFileException;
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| use Symfony\Component\HttpFoundation\File\Exception\PartialFileException;
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| use Symfony\Component\Mime\MimeTypes;
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| 
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| /**
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|  * A file uploaded through a form.
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|  *
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|  * @author Bernhard Schussek <bschussek@gmail.com>
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|  * @author Florian Eckerstorfer <florian@eckerstorfer.org>
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|  * @author Fabien Potencier <fabien@symfony.com>
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|  */
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| class UploadedFile extends File
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| {
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|     private bool $test;
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|     private string $originalName;
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|     private string $mimeType;
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|     private int $error;
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| 
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|     /**
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|      * Accepts the information of the uploaded file as provided by the PHP global $_FILES.
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|      *
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|      * The file object is only created when the uploaded file is valid (i.e. when the
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|      * isValid() method returns true). Otherwise the only methods that could be called
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|      * on an UploadedFile instance are:
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|      *
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|      *   * getClientOriginalName,
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|      *   * getClientMimeType,
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|      *   * isValid,
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|      *   * getError.
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|      *
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|      * Calling any other method on an non-valid instance will cause an unpredictable result.
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|      *
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|      * @param string      $path         The full temporary path to the file
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|      * @param string      $originalName The original file name of the uploaded file
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|      * @param string|null $mimeType     The type of the file as provided by PHP; null defaults to application/octet-stream
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|      * @param int|null    $error        The error constant of the upload (one of PHP's UPLOAD_ERR_XXX constants); null defaults to UPLOAD_ERR_OK
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|      * @param bool        $test         Whether the test mode is active
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|      *                                  Local files are used in test mode hence the code should not enforce HTTP uploads
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|      *
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|      * @throws FileException         If file_uploads is disabled
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|      * @throws FileNotFoundException If the file does not exist
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|      */
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|     public function __construct(string $path, string $originalName, string $mimeType = null, int $error = null, bool $test = false)
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|     {
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|         $this->originalName = $this->getName($originalName);
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|         $this->mimeType = $mimeType ?: 'application/octet-stream';
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|         $this->error = $error ?: \UPLOAD_ERR_OK;
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|         $this->test = $test;
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| 
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|         parent::__construct($path, \UPLOAD_ERR_OK === $this->error);
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|     }
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| 
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|     /**
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|      * Returns the original file name.
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|      *
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|      * It is extracted from the request from which the file has been uploaded.
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|      * Then it should not be considered as a safe value.
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|      */
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|     public function getClientOriginalName(): string
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|     {
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|         return $this->originalName;
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|     }
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| 
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|     /**
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|      * Returns the original file extension.
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|      *
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|      * It is extracted from the original file name that was uploaded.
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|      * Then it should not be considered as a safe value.
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|      */
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|     public function getClientOriginalExtension(): string
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|     {
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|         return pathinfo($this->originalName, \PATHINFO_EXTENSION);
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|     }
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| 
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|     /**
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|      * Returns the file mime type.
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|      *
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|      * The client mime type is extracted from the request from which the file
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|      * was uploaded, so it should not be considered as a safe value.
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|      *
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|      * For a trusted mime type, use getMimeType() instead (which guesses the mime
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|      * type based on the file content).
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|      *
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|      * @see getMimeType()
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|      */
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|     public function getClientMimeType(): string
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|     {
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|         return $this->mimeType;
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|     }
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| 
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|     /**
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|      * Returns the extension based on the client mime type.
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|      *
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|      * If the mime type is unknown, returns null.
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|      *
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|      * This method uses the mime type as guessed by getClientMimeType()
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|      * to guess the file extension. As such, the extension returned
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|      * by this method cannot be trusted.
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|      *
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|      * For a trusted extension, use guessExtension() instead (which guesses
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|      * the extension based on the guessed mime type for the file).
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|      *
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|      * @see guessExtension()
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|      * @see getClientMimeType()
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|      */
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|     public function guessClientExtension(): ?string
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|     {
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|         if (!class_exists(MimeTypes::class)) {
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|             throw new \LogicException('You cannot guess the extension as the Mime component is not installed. Try running "composer require symfony/mime".');
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|         }
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| 
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|         return MimeTypes::getDefault()->getExtensions($this->getClientMimeType())[0] ?? null;
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|     }
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| 
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|     /**
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|      * Returns the upload error.
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|      *
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|      * If the upload was successful, the constant UPLOAD_ERR_OK is returned.
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|      * Otherwise one of the other UPLOAD_ERR_XXX constants is returned.
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|      */
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|     public function getError(): int
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|     {
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|         return $this->error;
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|     }
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| 
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|     /**
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|      * Returns whether the file has been uploaded with HTTP and no error occurred.
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|      */
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|     public function isValid(): bool
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|     {
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|         $isOk = \UPLOAD_ERR_OK === $this->error;
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| 
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|         return $this->test ? $isOk : $isOk && is_uploaded_file($this->getPathname());
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|     }
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| 
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|     /**
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|      * Moves the file to a new location.
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|      *
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|      * @throws FileException if, for any reason, the file could not have been moved
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|      */
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|     public function move(string $directory, string $name = null): File
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|     {
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|         if ($this->isValid()) {
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|             if ($this->test) {
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|                 return parent::move($directory, $name);
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|             }
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| 
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|             $target = $this->getTargetFile($directory, $name);
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| 
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|             set_error_handler(function ($type, $msg) use (&$error) { $error = $msg; });
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|             try {
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|                 $moved = move_uploaded_file($this->getPathname(), $target);
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|             } finally {
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|                 restore_error_handler();
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|             }
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|             if (!$moved) {
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|                 throw new FileException(sprintf('Could not move the file "%s" to "%s" (%s).', $this->getPathname(), $target, strip_tags($error)));
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|             }
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| 
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|             @chmod($target, 0666 & ~umask());
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| 
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|             return $target;
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|         }
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| 
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|         switch ($this->error) {
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|             case \UPLOAD_ERR_INI_SIZE:
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|                 throw new IniSizeFileException($this->getErrorMessage());
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|             case \UPLOAD_ERR_FORM_SIZE:
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|                 throw new FormSizeFileException($this->getErrorMessage());
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|             case \UPLOAD_ERR_PARTIAL:
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|                 throw new PartialFileException($this->getErrorMessage());
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|             case \UPLOAD_ERR_NO_FILE:
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|                 throw new NoFileException($this->getErrorMessage());
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|             case \UPLOAD_ERR_CANT_WRITE:
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|                 throw new CannotWriteFileException($this->getErrorMessage());
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|             case \UPLOAD_ERR_NO_TMP_DIR:
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|                 throw new NoTmpDirFileException($this->getErrorMessage());
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|             case \UPLOAD_ERR_EXTENSION:
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|                 throw new ExtensionFileException($this->getErrorMessage());
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|         }
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| 
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|         throw new FileException($this->getErrorMessage());
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|     }
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| 
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|     /**
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|      * Returns the maximum size of an uploaded file as configured in php.ini.
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|      *
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|      * @return int|float The maximum size of an uploaded file in bytes (returns float if size > PHP_INT_MAX)
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|      */
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|     public static function getMaxFilesize(): int|float
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|     {
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|         $sizePostMax = self::parseFilesize(\ini_get('post_max_size'));
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|         $sizeUploadMax = self::parseFilesize(\ini_get('upload_max_filesize'));
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| 
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|         return min($sizePostMax ?: \PHP_INT_MAX, $sizeUploadMax ?: \PHP_INT_MAX);
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|     }
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| 
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|     private static function parseFilesize(string $size): int|float
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|     {
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|         if ('' === $size) {
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|             return 0;
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|         }
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| 
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|         $size = strtolower($size);
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| 
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|         $max = ltrim($size, '+');
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|         if (str_starts_with($max, '0x')) {
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|             $max = \intval($max, 16);
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|         } elseif (str_starts_with($max, '0')) {
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|             $max = \intval($max, 8);
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|         } else {
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|             $max = (int) $max;
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|         }
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| 
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|         switch (substr($size, -1)) {
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|             case 't': $max *= 1024;
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|                 // no break
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|             case 'g': $max *= 1024;
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|                 // no break
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|             case 'm': $max *= 1024;
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|                 // no break
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|             case 'k': $max *= 1024;
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|         }
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| 
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|         return $max;
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|     }
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| 
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|     /**
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|      * Returns an informative upload error message.
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|      */
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|     public function getErrorMessage(): string
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|     {
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|         static $errors = [
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|             \UPLOAD_ERR_INI_SIZE => 'The file "%s" exceeds your upload_max_filesize ini directive (limit is %d KiB).',
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|             \UPLOAD_ERR_FORM_SIZE => 'The file "%s" exceeds the upload limit defined in your form.',
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|             \UPLOAD_ERR_PARTIAL => 'The file "%s" was only partially uploaded.',
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|             \UPLOAD_ERR_NO_FILE => 'No file was uploaded.',
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|             \UPLOAD_ERR_CANT_WRITE => 'The file "%s" could not be written on disk.',
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|             \UPLOAD_ERR_NO_TMP_DIR => 'File could not be uploaded: missing temporary directory.',
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|             \UPLOAD_ERR_EXTENSION => 'File upload was stopped by a PHP extension.',
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|         ];
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| 
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|         $errorCode = $this->error;
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|         $maxFilesize = \UPLOAD_ERR_INI_SIZE === $errorCode ? self::getMaxFilesize() / 1024 : 0;
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|         $message = $errors[$errorCode] ?? 'The file "%s" was not uploaded due to an unknown error.';
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| 
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|         return sprintf($message, $this->getClientOriginalName(), $maxFilesize);
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|     }
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| }
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