--- /dev/null
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @see http://github.com/zendframework/zend-diactoros for the canonical source repository
+ * @copyright Copyright (c) 2015-2016 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license https://github.com/zendframework/zend-diactoros/blob/master/LICENSE.md New BSD License
+ */
+
+namespace Zend\Diactoros;
+
+use InvalidArgumentException;
+use Psr\Http\Message\StreamInterface;
+use Psr\Http\Message\UploadedFileInterface;
+use RuntimeException;
+
+class UploadedFile implements UploadedFileInterface
+{
+ /**
+ * @var string
+ */
+ private $clientFilename;
+
+ /**
+ * @var string
+ */
+ private $clientMediaType;
+
+ /**
+ * @var int
+ */
+ private $error;
+
+ /**
+ * @var null|string
+ */
+ private $file;
+
+ /**
+ * @var bool
+ */
+ private $moved = false;
+
+ /**
+ * @var int
+ */
+ private $size;
+
+ /**
+ * @var null|StreamInterface
+ */
+ private $stream;
+
+ /**
+ * @param string|resource $streamOrFile
+ * @param int $size
+ * @param int $errorStatus
+ * @param string|null $clientFilename
+ * @param string|null $clientMediaType
+ * @throws InvalidArgumentException
+ */
+ public function __construct($streamOrFile, $size, $errorStatus, $clientFilename = null, $clientMediaType = null)
+ {
+ if ($errorStatus === UPLOAD_ERR_OK) {
+ if (is_string($streamOrFile)) {
+ $this->file = $streamOrFile;
+ }
+ if (is_resource($streamOrFile)) {
+ $this->stream = new Stream($streamOrFile);
+ }
+
+ if (! $this->file && ! $this->stream) {
+ if (! $streamOrFile instanceof StreamInterface) {
+ throw new InvalidArgumentException('Invalid stream or file provided for UploadedFile');
+ }
+ $this->stream = $streamOrFile;
+ }
+ }
+
+ if (! is_int($size)) {
+ throw new InvalidArgumentException('Invalid size provided for UploadedFile; must be an int');
+ }
+ $this->size = $size;
+
+ if (! is_int($errorStatus)
+ || 0 > $errorStatus
+ || 8 < $errorStatus
+ ) {
+ throw new InvalidArgumentException(
+ 'Invalid error status for UploadedFile; must be an UPLOAD_ERR_* constant'
+ );
+ }
+ $this->error = $errorStatus;
+
+ if (null !== $clientFilename && ! is_string($clientFilename)) {
+ throw new InvalidArgumentException(
+ 'Invalid client filename provided for UploadedFile; must be null or a string'
+ );
+ }
+ $this->clientFilename = $clientFilename;
+
+ if (null !== $clientMediaType && ! is_string($clientMediaType)) {
+ throw new InvalidArgumentException(
+ 'Invalid client media type provided for UploadedFile; must be null or a string'
+ );
+ }
+ $this->clientMediaType = $clientMediaType;
+ }
+
+ /**
+ * {@inheritdoc}
+ * @throws \RuntimeException if the upload was not successful.
+ */
+ public function getStream()
+ {
+ if ($this->error !== UPLOAD_ERR_OK) {
+ throw new RuntimeException('Cannot retrieve stream due to upload error');
+ }
+
+ if ($this->moved) {
+ throw new RuntimeException('Cannot retrieve stream after it has already been moved');
+ }
+
+ if ($this->stream instanceof StreamInterface) {
+ return $this->stream;
+ }
+
+ $this->stream = new Stream($this->file);
+ return $this->stream;
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * @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 \RuntimeException if the upload was not successful.
+ * @throws \InvalidArgumentException if the $path specified is invalid.
+ * @throws \RuntimeException on any error during the move operation, or on
+ * the second or subsequent call to the method.
+ */
+ public function moveTo($targetPath)
+ {
+ if ($this->moved) {
+ throw new RuntimeException('Cannot move file; already moved!');
+ }
+
+ if ($this->error !== UPLOAD_ERR_OK) {
+ throw new RuntimeException('Cannot retrieve stream due to upload error');
+ }
+
+ if (! is_string($targetPath) || empty($targetPath)) {
+ throw new InvalidArgumentException(
+ 'Invalid path provided for move operation; must be a non-empty string'
+ );
+ }
+
+ $targetDirectory = dirname($targetPath);
+ if (! is_dir($targetDirectory) || ! is_writable($targetDirectory)) {
+ throw new RuntimeException(sprintf(
+ 'The target directory `%s` does not exists or is not writable',
+ $targetDirectory
+ ));
+ }
+
+ $sapi = PHP_SAPI;
+ switch (true) {
+ case (empty($sapi) || 0 === strpos($sapi, 'cli') || ! $this->file):
+ // Non-SAPI environment, or no filename present
+ $this->writeFile($targetPath);
+ break;
+ default:
+ // SAPI environment, with file present
+ if (false === move_uploaded_file($this->file, $targetPath)) {
+ throw new RuntimeException('Error occurred while moving uploaded file');
+ }
+ break;
+ }
+
+ $this->moved = true;
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * @return int|null The file size in bytes or null if unknown.
+ */
+ public function getSize()
+ {
+ return $this->size;
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * @see http://php.net/manual/en/features.file-upload.errors.php
+ * @return int One of PHP's UPLOAD_ERR_XXX constants.
+ */
+ public function getError()
+ {
+ return $this->error;
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * @return string|null The filename sent by the client or null if none
+ * was provided.
+ */
+ public function getClientFilename()
+ {
+ return $this->clientFilename;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getClientMediaType()
+ {
+ return $this->clientMediaType;
+ }
+
+ /**
+ * Write internal stream to given path
+ *
+ * @param string $path
+ */
+ private function writeFile($path)
+ {
+ $handle = fopen($path, 'wb+');
+ if (false === $handle) {
+ throw new RuntimeException('Unable to write to designated path');
+ }
+
+ $stream = $this->getStream();
+ $stream->rewind();
+ while (! $stream->eof()) {
+ fwrite($handle, $stream->read(4096));
+ }
+
+ fclose($handle);
+ }
+}