<?php namespace Http\Message\Encoding; use Clue\StreamFilter as Filter; use Psr\Http\Message\StreamInterface; /** * Stream decompress (RFC 1950). * * @author Joel Wurtz <joel.wurtz@gmail.com> */ class DecompressStream extends FilteredStream { /** * @param int $level */ 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' => 15]); // @deprecated will be removed in 2.0 $this->writeFilterCallback = Filter\fun($this->writeFilter(), ['window' => 15, 'level' => $level]); } /** * {@inheritdoc} */ protected function readFilter() { return 'zlib.inflate'; } /** * {@inheritdoc} */ protected function writeFilter() { return 'zlib.deflate'; } }