GzipDecodeStream.php

<?php
 
namespace Http\Message\Encoding;
 
use Clue\StreamFilter as Filter;
use Psr\Http\Message\StreamInterface;
 
class GzipDecodeStream extends FilteredStream
{
    public function __construct(StreamInterface $stream, $level = -1)
    {
        if (!extension_loaded('zlib')) {
            throw new \RuntimeException('The zlib extension must be enabled to use this stream');
        }
 
        parent::__construct($stream, ['window' => 31]);
 
        // @deprecated will be removed in 2.0
        $this->writeFilterCallback = Filter\fun($this->writeFilter(), ['window' => 31, 'level' => $level]);
    }
 
    protected function readFilter()
    {
        return 'zlib.inflate';
    }
 
    protected function writeFilter()
    {
        return 'zlib.deflate';
    }
}