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https://github.com/pmmp/PocketMine-MP.git
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60 lines
1.6 KiB
PHP
60 lines
1.6 KiB
PHP
<?php
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/*
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*
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* ____ _ _ __ __ _ __ __ ____
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* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
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* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
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* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
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* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* @author PocketMine Team
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* @link http://www.pocketmine.net/
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*
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*
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*/
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declare(strict_types=1);
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namespace pocketmine\network\mcpe\compression;
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use function zlib_decode;
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use function zlib_encode;
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use const ZLIB_ENCODING_DEFLATE;
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final class Zlib{
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/** @var int */
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public static $LEVEL = 7;
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/** @var int */
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public static $THRESHOLD = 256;
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private function __construct(){
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}
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/**
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* @param int $maxDecodedLength default 2MB
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*
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* @throws DecompressionException
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*/
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public static function decompress(string $payload, int $maxDecodedLength = 1024 * 1024 * 2) : string{
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$result = @zlib_decode($payload, $maxDecodedLength);
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if($result === false){
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throw new DecompressionException("Failed to decompress data");
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}
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return $result;
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}
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/**
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* @param int $compressionLevel
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*/
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public static function compress(string $payload, ?int $compressionLevel = null) : string{
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return zlib_encode($payload, ZLIB_ENCODING_DEFLATE, $compressionLevel ?? self::$LEVEL);
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}
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}
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