DeflateCompression.php

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<?php

declare(strict_types=1);

namespace ILIAS\FileDelivery\Token\Compression;

class DeflateCompression implements Compression
{
    private const LEVEL = 9;

    public function compress(string $data): string
    {
        $compressed = \gzdeflate($data, self::LEVEL);
        if ($compressed === false) {
            throw new CompressionFailure();
        }
        return $compressed;
    }

    public function decompress(string $data): string
    {
        $decompressed = \gzinflate($data);
        if ($decompressed === false) {
            throw new CompressionFailure();
        }

        return $decompressed;
    }
}