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<?php
namespace Psr\Http\Message;
/**
* Value object representing a file uploaded through an HTTP request.
*
* Instances of this interface are considered immutable; all methods that
* might change state MUST be implemented such that they retain the internal
* state of the current instance and return an instance that contains the
* changed state.
*/
interface UploadedFileInterface
{
/**
* Retrieve a stream representing the uploaded file.
*
* This method MUST return a StreamInterface instance, representing the
* uploaded file. The purpose of this method is to allow utilizing native PHP
* stream functionality to manipulate the file upload, such as
* stream_copy_to_stream() (though the result will need to be decorated in a
* native PHP stream wrapper to work with such functions).
*
* If the moveTo() method has been called previously, this method MUST raise
* an exception.
*
* @return StreamInterface Stream representation of the uploaded file.
* @throws \RuntimeException in cases when no stream is available or can be
* created.
*/
public function getStream(): StreamInterface;
/**
* Move the uploaded file to a new location.
*
* Use this method as an alternative to move_uploaded_file(). This method is
* guaranteed to work in both SAPI and non-SAPI environments.
* Implementations must determine which environment they are in, and use the
* appropriate method (move_uploaded_file(), rename(), or a stream
* operation) to perform the operation.
*
* $targetPath may be an absolute path, or a relative path. If it is a
* relative path, resolution should be the same as used by PHP's rename()
* function.
*
* The original file or stream MUST be removed on completion.
*
* If this method is called more than once, any subsequent calls MUST raise
* an exception.
*
* When used in an SAPI environment where $_FILES is populated, when writing
* files via moveTo(), is_uploaded_file() and move_uploaded_file() SHOULD be
* used to ensure permissions and upload status are verified correctly.
*
* If you wish to move to a stream, use getStream(), as SAPI operations
* cannot guarantee writing to stream destinations.
*
* @see http://php.net/is_uploaded_file
* @see http://php.net/move_uploaded_file
* @param string $targetPath Path to which to move the uploaded file.
* @throws \InvalidArgumentException if the $targetPath specified is invalid.
* @throws \RuntimeException on any error during the move operation, or on
* the second or subsequent call to the method.
*/
public function moveTo(string $targetPath): void;
/**
* Retrieve the file size.
*
* Implementations SHOULD return the value stored in the "size" key of
* the file in the $_FILES array if available, as PHP calculates this based
* on the actual size transmitted.
*
* @return int|null The file size in bytes or null if unknown.
*/
public function getSize(): ?int;
/**
* Retrieve the error associated with the uploaded file.
*
* The return value MUST be one of PHP's UPLOAD_ERR_XXX constants.
*
* If the file was uploaded successfully, this method MUST return
* UPLOAD_ERR_OK.
*
* Implementations SHOULD return the value stored in the "error" key of
* the file in the $_FILES array.
*
* @see http://php.net/manual/en/features.file-upload.errors.php
* @return int One of PHP's UPLOAD_ERR_XXX constants.
*/
public function getError(): int;
/**
* Retrieve the filename sent by the client.
*
* Do not trust the value returned by this method. A client could send
* a malicious filename with the intention to corrupt or hack your
* application.
*
* Implementations SHOULD return the value stored in the "name" key of
* the file in the $_FILES array.
*
* @return string|null The filename sent by the client or null if none
* was provided.
*/
public function getClientFilename(): ?string;
/**
* Retrieve the media type sent by the client.
*
* Do not trust the value returned by this method. A client could send
* a malicious media type with the intention to corrupt or hack your
* application.
*
* Implementations SHOULD return the value stored in the "type" key of
* the file in the $_FILES array.
*
* @return string|null The media type sent by the client or null if none
* was provided.
*/
public function getClientMediaType(): ?string;
}