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 *
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 *
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 * This stream decorator converts the provided stream to a PHP stream resource,
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 * This stream decorator converts the provided stream to a PHP stream resource,
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 * then appends the zlib.inflate filter. The stream is then converted back
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 * then appends the zlib.inflate filter. The stream is then converted back
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 * to a Guzzle stream resource to be used as a Guzzle stream.
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 * to a Guzzle stream resource to be used as a Guzzle stream.
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 *
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 *
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 * @link http://tools.ietf.org/html/rfc1950
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 * @see https://datatracker.ietf.org/doc/html/rfc1950
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 * @link http://tools.ietf.org/html/rfc1952
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 * @see https://datatracker.ietf.org/doc/html/rfc1952
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 * @link http://php.net/manual/en/filters.compression.php
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 * @see https://www.php.net/manual/en/filters.compression.php
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 */
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 */
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final class InflateStream implements StreamInterface
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final class InflateStream implements StreamInterface
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{
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{
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    use StreamDecoratorTrait;
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    use StreamDecoratorTrait;
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    public function __construct(StreamInterface $stream)
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    public function __construct(StreamInterface $stream)
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    {
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    {
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        $resource = StreamWrapper::getResource($stream);
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        $resource = StreamWrapper::getResource($stream);
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        // Specify window=15+32, so zlib will use header detection to both gzip (with header) and zlib data
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        // Specify window=15+32, so zlib will use header detection to both gzip (with header) and zlib data
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        // See http://www.zlib.net/manual.html#Advanced definition of inflateInit2
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        // See https://www.zlib.net/manual.html#Advanced definition of inflateInit2
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        // "Add 32 to windowBits to enable zlib and gzip decoding with automatic header detection"
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        // "Add 32 to windowBits to enable zlib and gzip decoding with automatic header detection"
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        // Default window size is 15.
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        // Default window size is 15.
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        stream_filter_append($resource, 'zlib.inflate', STREAM_FILTER_READ, ['window' => 15 + 32]);
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        stream_filter_append($resource, 'zlib.inflate', STREAM_FILTER_READ, ['window' => 15 + 32]);
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        $this->stream = $stream->isSeekable() ? new Stream($resource) : new NoSeekStream(new Stream($resource));
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        $this->stream = $stream->isSeekable() ? new Stream($resource) : new NoSeekStream(new Stream($resource));