Chris@0: <?php
Chris@0: namespace GuzzleHttp\Psr7;
Chris@0: 
Chris@0: use Psr\Http\Message\StreamInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Converts Guzzle streams into PHP stream resources.
Chris@0:  */
Chris@0: class StreamWrapper
Chris@0: {
Chris@0:     /** @var resource */
Chris@0:     public $context;
Chris@0: 
Chris@0:     /** @var StreamInterface */
Chris@0:     private $stream;
Chris@0: 
Chris@0:     /** @var string r, r+, or w */
Chris@0:     private $mode;
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns a resource representing the stream.
Chris@0:      *
Chris@0:      * @param StreamInterface $stream The stream to get a resource for
Chris@0:      *
Chris@0:      * @return resource
Chris@0:      * @throws \InvalidArgumentException if stream is not readable or writable
Chris@0:      */
Chris@0:     public static function getResource(StreamInterface $stream)
Chris@0:     {
Chris@0:         self::register();
Chris@0: 
Chris@0:         if ($stream->isReadable()) {
Chris@0:             $mode = $stream->isWritable() ? 'r+' : 'r';
Chris@0:         } elseif ($stream->isWritable()) {
Chris@0:             $mode = 'w';
Chris@0:         } else {
Chris@0:             throw new \InvalidArgumentException('The stream must be readable, '
Chris@0:                 . 'writable, or both.');
Chris@0:         }
Chris@0: 
Chris@17:         return fopen('guzzle://stream', $mode, null, self::createStreamContext($stream));
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * Creates a stream context that can be used to open a stream as a php stream resource.
Chris@17:      *
Chris@17:      * @param StreamInterface $stream
Chris@17:      *
Chris@17:      * @return resource
Chris@17:      */
Chris@17:     public static function createStreamContext(StreamInterface $stream)
Chris@17:     {
Chris@17:         return stream_context_create([
Chris@0:             'guzzle' => ['stream' => $stream]
Chris@17:         ]);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Registers the stream wrapper if needed
Chris@0:      */
Chris@0:     public static function register()
Chris@0:     {
Chris@0:         if (!in_array('guzzle', stream_get_wrappers())) {
Chris@0:             stream_wrapper_register('guzzle', __CLASS__);
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     public function stream_open($path, $mode, $options, &$opened_path)
Chris@0:     {
Chris@0:         $options = stream_context_get_options($this->context);
Chris@0: 
Chris@0:         if (!isset($options['guzzle']['stream'])) {
Chris@0:             return false;
Chris@0:         }
Chris@0: 
Chris@0:         $this->mode = $mode;
Chris@0:         $this->stream = $options['guzzle']['stream'];
Chris@0: 
Chris@0:         return true;
Chris@0:     }
Chris@0: 
Chris@0:     public function stream_read($count)
Chris@0:     {
Chris@0:         return $this->stream->read($count);
Chris@0:     }
Chris@0: 
Chris@0:     public function stream_write($data)
Chris@0:     {
Chris@0:         return (int) $this->stream->write($data);
Chris@0:     }
Chris@0: 
Chris@0:     public function stream_tell()
Chris@0:     {
Chris@0:         return $this->stream->tell();
Chris@0:     }
Chris@0: 
Chris@0:     public function stream_eof()
Chris@0:     {
Chris@0:         return $this->stream->eof();
Chris@0:     }
Chris@0: 
Chris@0:     public function stream_seek($offset, $whence)
Chris@0:     {
Chris@0:         $this->stream->seek($offset, $whence);
Chris@0: 
Chris@0:         return true;
Chris@0:     }
Chris@0: 
Chris@17:     public function stream_cast($cast_as)
Chris@17:     {
Chris@17:         $stream = clone($this->stream);
Chris@17: 
Chris@17:         return $stream->detach();
Chris@17:     }
Chris@17: 
Chris@0:     public function stream_stat()
Chris@0:     {
Chris@0:         static $modeMap = [
Chris@0:             'r'  => 33060,
Chris@17:             'rb' => 33060,
Chris@0:             'r+' => 33206,
Chris@17:             'w'  => 33188,
Chris@17:             'wb' => 33188
Chris@0:         ];
Chris@0: 
Chris@0:         return [
Chris@0:             'dev'     => 0,
Chris@0:             'ino'     => 0,
Chris@0:             'mode'    => $modeMap[$this->mode],
Chris@0:             'nlink'   => 0,
Chris@0:             'uid'     => 0,
Chris@0:             'gid'     => 0,
Chris@0:             'rdev'    => 0,
Chris@0:             'size'    => $this->stream->getSize() ?: 0,
Chris@0:             'atime'   => 0,
Chris@0:             'mtime'   => 0,
Chris@0:             'ctime'   => 0,
Chris@0:             'blksize' => 0,
Chris@0:             'blocks'  => 0
Chris@0:         ];
Chris@0:     }
Chris@17: 
Chris@17:     public function url_stat($path, $flags)
Chris@17:     {
Chris@17:         return [
Chris@17:             'dev'     => 0,
Chris@17:             'ino'     => 0,
Chris@17:             'mode'    => 0,
Chris@17:             'nlink'   => 0,
Chris@17:             'uid'     => 0,
Chris@17:             'gid'     => 0,
Chris@17:             'rdev'    => 0,
Chris@17:             'size'    => 0,
Chris@17:             'atime'   => 0,
Chris@17:             'mtime'   => 0,
Chris@17:             'ctime'   => 0,
Chris@17:             'blksize' => 0,
Chris@17:             'blocks'  => 0
Chris@17:         ];
Chris@17:     }
Chris@0: }