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<?php |
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declare(strict_types=1); |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2019 Spomky-Labs |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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namespace Jose\Component\Encryption\Compression; |
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use InvalidArgumentException; |
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use Throwable; |
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final class Deflate implements CompressionMethod |
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{ |
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/** |
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* @var int |
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*/ |
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private $compressionLevel = -1; |
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/** |
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* Deflate constructor. |
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* |
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* @throws InvalidArgumentException if the compression level is invalid |
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*/ |
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public function __construct(int $compressionLevel = -1) |
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{ |
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if ($compressionLevel < -1 || $compressionLevel > 9) { |
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throw new InvalidArgumentException('The compression level can be given as 0 for no compression up to 9 for maximum compression. If -1 given, the default compression level will be the default compression level of the zlib library.'); |
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} |
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$this->compressionLevel = $compressionLevel; |
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} |
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public function name(): string |
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{ |
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return 'DEF'; |
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} |
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/** |
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* @throws InvalidArgumentException if the compression failed |
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*/ |
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public function compress(string $data): string |
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{ |
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try { |
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return gzdeflate($data, $this->getCompressionLevel()); |
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} catch (Throwable $throwable) { |
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throw new InvalidArgumentException('Unable to compress data.', $throwable->getCode(), $throwable); |
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} |
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} |
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/** |
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* @throws InvalidArgumentException if the decompression failed |
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*/ |
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public function uncompress(string $data): string |
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{ |
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try { |
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return gzinflate($data); |
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} catch (Throwable $throwable) { |
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throw new InvalidArgumentException('Unable to uncompress data.', $throwable->getCode(), $throwable); |
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} |
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} |
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private function getCompressionLevel(): int |
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{ |
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return $this->compressionLevel; |
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} |
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} |
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web-token /
jwt-framework
