<?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(); /** * 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 $targetPath specified is invalid. * @throws \RuntimeException on any error during the move operation, or on * the second or subsequent call to the method. */ public function moveTo($targetPath); /** * 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(); /** * 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(); /** * 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(); /** * 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(); }