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<?php |
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/** |
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* This file is part of the Phalcon Framework. |
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* |
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* (c) Phalcon Team <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE.txt |
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* file that was distributed with this source code. |
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* |
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* Implementation of this file has been influenced by Zend Diactoros |
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* @link https://github.com/zendframework/zend-diactoros |
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* @license https://github.com/zendframework/zend-diactoros/blob/master/LICENSE.md |
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*/ |
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declare(strict_types=1); |
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namespace Phalcon\Http\Message; |
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use Phalcon\Helper\Number; |
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use Phalcon\Helper\Arr; |
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use Phalcon\Helper\Str; |
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use Phalcon\Http\Message\Exception\InvalidArgumentException; |
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use Psr\Http\Message\StreamInterface; |
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use Psr\Http\Message\UploadedFileInterface; |
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use RuntimeException; |
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use function is_resource; |
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use function is_string; |
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/** |
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* PSR-7 UploadedFile |
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* |
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* @property bool $alreadyMoved |
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* @property string|null $clientFilename |
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* @property string|null $clientMediaType |
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* @property int $error |
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* @property string $fileName |
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* @property int|null $size |
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* @property StreamInterface|string|null $stream; |
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*/ |
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final class UploadedFile implements UploadedFileInterface |
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{ |
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/** |
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* If the file has already been moved, we hold that status here |
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* |
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* @var bool |
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*/ |
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protected $alreadyMoved = false; |
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/** |
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* Retrieve the filename sent by the client. |
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* |
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* Do not trust the value returned by this method. A client could send |
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* a malicious filename with the intention to corrupt or hack your |
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* application. |
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* |
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* Implementations SHOULD return the value stored in the 'name' key of |
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* the file in the $_FILES array. |
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* |
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* @var string | null |
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*/ |
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protected $clientFilename = null; |
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/** |
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* Retrieve the media type sent by the client. |
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* |
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* Do not trust the value returned by this method. A client could send |
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* a malicious media type with the intention to corrupt or hack your |
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* application. |
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* |
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* Implementations SHOULD return the value stored in the 'type' key of |
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* the file in the $_FILES array. |
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* |
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* @var string | null |
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*/ |
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protected $clientMediaType = null; |
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/** |
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* Retrieve the error associated with the uploaded file. |
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* |
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* The return value MUST be one of PHP's UPLOAD_ERR_XXX constants. |
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* |
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* If the file was uploaded successfully, this method MUST return |
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* UPLOAD_ERR_OK. |
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* |
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* Implementations SHOULD return the value stored in the 'error' key of |
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* the file in the $_FILES array. |
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* |
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* @see http://php.net/manual/en/features.file-upload.errors.php |
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* |
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* @var int |
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*/ |
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protected $error = 0; |
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/** |
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* If the stream is a string (file name) we store it here |
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* |
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* @var string |
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*/ |
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protected $fileName = ""; |
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/** |
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* Retrieve the file size. |
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* |
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* Implementations SHOULD return the value stored in the 'size' key of |
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* the file in the $_FILES array if available, as PHP calculates this based |
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* on the actual size transmitted. |
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* |
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* @var int | null |
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*/ |
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protected $size = null; |
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/** |
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* Holds the stream/string for the uploaded file |
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* |
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* @var StreamInterface|string|null |
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*/ |
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protected $stream; |
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/** |
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* UploadedFile constructor. |
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* |
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* @param StreamInterface|string|null $stream |
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* @param int|null $size |
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* @param int $error |
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* @param string|null $clientFilename |
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* @param string|null $clientMediaType |
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*/ |
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public function __construct( |
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$stream, |
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int $size = null, |
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int $error = 0, |
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string $clientFilename = null, |
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string $clientMediaType = null |
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) { |
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/** |
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* Check the stream passed. It can be a string representing a file or |
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* a StreamInterface |
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*/ |
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$this->checkStream($stream, $error); |
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/** |
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* Check the error |
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*/ |
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$this->checkError($error); |
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$this->size = $size; |
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$this->clientFilename = $clientFilename; |
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$this->clientMediaType = $clientMediaType; |
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} |
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/** |
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* @return string|null |
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*/ |
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public function getClientFilename(): ?string |
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{ |
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return $this->clientFilename; |
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} |
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/** |
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* @return string|null |
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*/ |
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public function getClientMediaType(): ?string |
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{ |
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return $this->clientMediaType; |
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} |
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/** |
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* @return int |
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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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* @return int|null |
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*/ |
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public function getSize(): ?int |
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{ |
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return $this->size; |
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} |
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/** |
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* Retrieve a stream representing the uploaded file. |
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* |
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* This method MUST return a StreamInterface instance, representing the |
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* uploaded file. The purpose of this method is to allow utilizing native |
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* PHP stream functionality to manipulate the file upload, such as |
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* stream_copy_to_stream() (though the result will need to be decorated in |
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* a native PHP stream wrapper to work with such functions). |
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* |
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* If the moveTo() method has been called previously, this method MUST |
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* raise an exception. |
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* |
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* @return StreamInterface Stream representation of the uploaded file. |
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* @throws RuntimeException in cases when no stream is available or can be created. |
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*/ |
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public function getStream() |
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{ |
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if (0 !== $this->error) { |
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throw new InvalidArgumentException( |
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$this->getErrorDescription($this->error) |
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); |
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} |
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if ($this->alreadyMoved) { |
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throw new InvalidArgumentException( |
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"The file has already been moved to the target location" |
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); |
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} |
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if (!($this->stream instanceof StreamInterface)) { |
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$this->stream = new Stream($this->fileName); |
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} |
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return $this->stream; |
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} |
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/** |
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* Move the uploaded file to a new location. |
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* |
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* Use this method as an alternative to move_uploaded_file(). This method is |
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* guaranteed to work in both SAPI and non-SAPI environments. |
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* Implementations must determine which environment they are in, and use the |
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* appropriate method (move_uploaded_file(), rename(), or a stream |
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* operation) to perform the operation. |
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* |
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* $targetPath may be an absolute path, or a relative path. If it is a |
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* relative path, resolution should be the same as used by PHP's rename() |
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* function. |
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* |
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* The original file or stream MUST be removed on completion. |
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* |
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* If this method is called more than once, any subsequent calls MUST raise |
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* an exception. |
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* |
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* When used in an SAPI environment where $_FILES is populated, when writing |
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* files via moveTo(), is_uploaded_file() and move_uploaded_file() SHOULD be |
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* used to ensure permissions and upload status are verified correctly. |
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* |
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* If you wish to move to a stream, use getStream(), as SAPI operations |
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* cannot guarantee writing to stream destinations. |
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* |
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* @see http://php.net/is_uploaded_file |
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* @see http://php.net/move_uploaded_file |
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* |
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* @param string $targetPath Path to which to move the uploaded file. |
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* |
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* @throws InvalidArgumentException if the $targetPath specified is invalid. |
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* @throws RuntimeException on any error during the move operation, or on |
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* the second or subsequent call to the method. |
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*/ |
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public function moveTo($targetPath): void |
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{ |
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if ($this->alreadyMoved) { |
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throw new InvalidArgumentException("File has already been moved"); |
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} |
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if (0 !== $this->error) { |
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throw new InvalidArgumentException( |
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$this->getErrorDescription($this->error) |
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); |
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} |
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/** |
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* All together for early failure |
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*/ |
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if ( |
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!( |
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is_string($targetPath) && |
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!empty($targetPath) && |
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is_dir(dirname($targetPath)) && |
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is_writable(dirname($targetPath)) |
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) |
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) { |
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throw new InvalidArgumentException( |
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"Target folder is empty string, not a folder or not writable" |
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); |
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} |
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$sapi = constant("PHP_SAPI"); |
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if ( |
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empty($sapi) || |
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!empty($this->fileName) || |
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Str::startsWith($sapi, "cli") || |
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Str::startsWith($sapi, "phpdbg") |
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) { |
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$this->storeFile($targetPath); |
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} else { |
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if (true !== move_uploaded_file($this->fileName, $targetPath)) { |
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throw new InvalidArgumentException( |
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"The file cannot be moved to the target folder" |
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); |
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} |
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} |
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$this->alreadyMoved = true; |
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} |
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/** |
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* Checks the passed error code and if not in the range throws an exception |
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* |
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* @param int $error |
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*/ |
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private function checkError(int $error): void |
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{ |
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if (true !== Number::between($error, 0, 8)) { |
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throw new InvalidArgumentException( |
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"Invalid error. Must be one of the UPLOAD_ERR_* constants" |
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); |
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} |
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$this->error = $error; |
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} |
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/** |
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* Checks the passed error code and if not in the range throws an exception |
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* |
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* @param StreamInterface|resource|string $stream |
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* @param int $error |
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*/ |
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private function checkStream($stream, int $error): void |
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{ |
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if (0 === $error) { |
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switch (true) { |
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case (is_string($stream)): |
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$this->fileName = $stream; |
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break; |
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case (is_resource($stream)): |
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$this->stream = new Stream($stream); |
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break; |
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case ($stream instanceof StreamInterface): |
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$this->stream = $stream; |
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break; |
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default: |
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throw new InvalidArgumentException( |
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"Invalid stream or file passed" |
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); |
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} |
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} |
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} |
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/** |
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* Returns a description string depending on the upload error code passed |
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* |
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* @param int $error |
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* |
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* @return string |
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*/ |
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private function getErrorDescription(int $error): string |
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{ |
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$errors = [ |
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0 => "There is no error, the file uploaded with success.", |
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1 => "The uploaded file exceeds the upload_max_filesize directive in php.ini.", |
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2 => "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.", |
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3 => "The uploaded file was only partially uploaded.", |
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4 => "No file was uploaded.", |
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6 => "Missing a temporary folder.", |
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7 => "Failed to write file to disk.", |
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8 => "A PHP extension stopped the file upload." |
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]; |
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return Arr::get($errors, $error, "Unknown upload error"); |
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} |
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/** |
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* Store a file in the new location (stream) |
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* |
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* @param string $targetPath |
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*/ |
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private function storeFile(string $targetPath): void |
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{ |
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$handle = fopen($targetPath, "w+b"); |
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if (false === $handle) { |
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throw new InvalidArgumentException("Cannot write to file."); |
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} |
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$stream = $this->getStream(); |
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$stream->rewind(); |
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while (true !== $stream->eof()) { |
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$data = $stream->read(2048); |
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fwrite($handle, $data); |
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} |
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fclose($handle); |
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} |
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|
|
|
} |
394
|
|
|
|