mirror of
https://github.com/pmmp/PocketMine-MP.git
synced 2025-06-24 04:14:07 +00:00
432 lines
10 KiB
PHP
432 lines
10 KiB
PHP
<?php
|
|
|
|
/*
|
|
*
|
|
* ____ _ _ __ __ _ __ __ ____
|
|
* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
|
|
* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
|
|
* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
|
|
* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* @author PocketMine Team
|
|
* @link http://www.pocketmine.net/
|
|
*
|
|
*
|
|
*/
|
|
|
|
declare(strict_types=1);
|
|
|
|
/**
|
|
* Named Binary Tag handling classes
|
|
*/
|
|
namespace pocketmine\nbt;
|
|
|
|
use pocketmine\nbt\tag\ByteArrayTag;
|
|
use pocketmine\nbt\tag\ByteTag;
|
|
use pocketmine\nbt\tag\CompoundTag;
|
|
use pocketmine\nbt\tag\DoubleTag;
|
|
use pocketmine\nbt\tag\EndTag;
|
|
use pocketmine\nbt\tag\FloatTag;
|
|
use pocketmine\nbt\tag\IntArrayTag;
|
|
use pocketmine\nbt\tag\IntTag;
|
|
use pocketmine\nbt\tag\ListTag;
|
|
use pocketmine\nbt\tag\LongTag;
|
|
use pocketmine\nbt\tag\NamedTag;
|
|
use pocketmine\nbt\tag\ShortTag;
|
|
use pocketmine\nbt\tag\StringTag;
|
|
use pocketmine\nbt\tag\Tag;
|
|
|
|
#ifndef COMPILE
|
|
use pocketmine\utils\Binary;
|
|
#endif
|
|
|
|
|
|
#include <rules/NBT.h>
|
|
|
|
/**
|
|
* Named Binary Tag encoder/decoder
|
|
*/
|
|
class NBT{
|
|
|
|
const LITTLE_ENDIAN = 0;
|
|
const BIG_ENDIAN = 1;
|
|
const TAG_End = 0;
|
|
const TAG_Byte = 1;
|
|
const TAG_Short = 2;
|
|
const TAG_Int = 3;
|
|
const TAG_Long = 4;
|
|
const TAG_Float = 5;
|
|
const TAG_Double = 6;
|
|
const TAG_ByteArray = 7;
|
|
const TAG_String = 8;
|
|
const TAG_List = 9;
|
|
const TAG_Compound = 10;
|
|
const TAG_IntArray = 11;
|
|
|
|
public $buffer;
|
|
public $offset;
|
|
public $endianness;
|
|
private $data;
|
|
|
|
/**
|
|
* @param int $type
|
|
*
|
|
* @return Tag
|
|
*/
|
|
public static function createTag(int $type){
|
|
switch($type){
|
|
case self::TAG_End:
|
|
return new EndTag();
|
|
case self::TAG_Byte:
|
|
return new ByteTag();
|
|
case self::TAG_Short:
|
|
return new ShortTag();
|
|
case self::TAG_Int:
|
|
return new IntTag();
|
|
case self::TAG_Long:
|
|
return new LongTag();
|
|
case self::TAG_Float:
|
|
return new FloatTag();
|
|
case self::TAG_Double:
|
|
return new DoubleTag();
|
|
case self::TAG_ByteArray:
|
|
return new ByteArrayTag();
|
|
case self::TAG_String:
|
|
return new StringTag();
|
|
case self::TAG_List:
|
|
return new ListTag();
|
|
case self::TAG_Compound:
|
|
return new CompoundTag();
|
|
case self::TAG_IntArray:
|
|
return new IntArrayTag();
|
|
default:
|
|
throw new \InvalidArgumentException("Unknown NBT tag type $type");
|
|
}
|
|
}
|
|
|
|
public static function matchList(ListTag $tag1, ListTag $tag2) : bool{
|
|
if($tag1->getName() !== $tag2->getName() or $tag1->getCount() !== $tag2->getCount()){
|
|
return false;
|
|
}
|
|
|
|
foreach($tag1 as $k => $v){
|
|
if(!($v instanceof Tag)){
|
|
continue;
|
|
}
|
|
|
|
if(!isset($tag2->{$k}) or !($tag2->{$k} instanceof $v)){
|
|
return false;
|
|
}
|
|
|
|
if($v instanceof CompoundTag){
|
|
if(!self::matchTree($v, $tag2->{$k})){
|
|
return false;
|
|
}
|
|
}elseif($v instanceof ListTag){
|
|
if(!self::matchList($v, $tag2->{$k})){
|
|
return false;
|
|
}
|
|
}else{
|
|
if($v->getValue() !== $tag2->{$k}->getValue()){
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public static function matchTree(CompoundTag $tag1, CompoundTag $tag2) : bool{
|
|
if($tag1->getName() !== $tag2->getName() or $tag1->getCount() !== $tag2->getCount()){
|
|
return false;
|
|
}
|
|
|
|
foreach($tag1 as $k => $v){
|
|
if(!($v instanceof Tag)){
|
|
continue;
|
|
}
|
|
|
|
if(!isset($tag2->{$k}) or !($tag2->{$k} instanceof $v)){
|
|
return false;
|
|
}
|
|
|
|
if($v instanceof CompoundTag){
|
|
if(!self::matchTree($v, $tag2->{$k})){
|
|
return false;
|
|
}
|
|
}elseif($v instanceof ListTag){
|
|
if(!self::matchList($v, $tag2->{$k})){
|
|
return false;
|
|
}
|
|
}else{
|
|
if($v->getValue() !== $tag2->{$k}->getValue()){
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public function get($len){
|
|
if($len < 0){
|
|
$this->offset = strlen($this->buffer) - 1;
|
|
return "";
|
|
}elseif($len === true){
|
|
return substr($this->buffer, $this->offset);
|
|
}
|
|
|
|
return $len === 1 ? $this->buffer{$this->offset++} : substr($this->buffer, ($this->offset += $len) - $len, $len);
|
|
}
|
|
|
|
public function put($v){
|
|
$this->buffer .= $v;
|
|
}
|
|
|
|
public function feof() : bool{
|
|
return !isset($this->buffer{$this->offset});
|
|
}
|
|
|
|
public function __construct($endianness = self::LITTLE_ENDIAN){
|
|
$this->offset = 0;
|
|
$this->endianness = $endianness & 0x01;
|
|
}
|
|
|
|
public function read($buffer, $doMultiple = false, bool $network = false){
|
|
$this->offset = 0;
|
|
$this->buffer = $buffer;
|
|
$this->data = $this->readTag($network);
|
|
if($doMultiple and $this->offset < strlen($this->buffer)){
|
|
$this->data = [$this->data];
|
|
do{
|
|
$this->data[] = $this->readTag($network);
|
|
}while($this->offset < strlen($this->buffer));
|
|
}
|
|
$this->buffer = "";
|
|
}
|
|
|
|
public function readCompressed($buffer){
|
|
$this->read(zlib_decode($buffer));
|
|
}
|
|
|
|
/**
|
|
* @param bool $network
|
|
*
|
|
* @return string|bool
|
|
*/
|
|
public function write(bool $network = false){
|
|
$this->offset = 0;
|
|
$this->buffer = "";
|
|
|
|
if($this->data instanceof CompoundTag){
|
|
$this->writeTag($this->data, $network);
|
|
|
|
return $this->buffer;
|
|
}elseif(is_array($this->data)){
|
|
foreach($this->data as $tag){
|
|
$this->writeTag($tag, $network);
|
|
}
|
|
return $this->buffer;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public function writeCompressed($compression = ZLIB_ENCODING_GZIP, $level = 7){
|
|
if(($write = $this->write()) !== false){
|
|
return zlib_encode($write, $compression, $level);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public function readTag(bool $network = false){
|
|
if($this->feof()){
|
|
return new EndTag();
|
|
}
|
|
|
|
$tagType = $this->getByte();
|
|
$tag = self::createTag($tagType);
|
|
|
|
if($tag instanceof NamedTag){
|
|
$tag->setName($this->getString($network));
|
|
$tag->read($this, $network);
|
|
}
|
|
|
|
return $tag;
|
|
}
|
|
|
|
public function writeTag(Tag $tag, bool $network = false){
|
|
$this->putByte($tag->getType());
|
|
if($tag instanceof NamedTag){
|
|
$this->putString($tag->getName(), $network);
|
|
}
|
|
$tag->write($this, $network);
|
|
}
|
|
|
|
public function getByte() : int{
|
|
return Binary::readByte($this->get(1));
|
|
}
|
|
|
|
public function getSignedByte() : int{
|
|
return Binary::readSignedByte($this->get(1));
|
|
}
|
|
|
|
public function putByte($v){
|
|
$this->buffer .= Binary::writeByte($v);
|
|
}
|
|
|
|
public function getShort() : int{
|
|
return $this->endianness === self::BIG_ENDIAN ? Binary::readShort($this->get(2)) : Binary::readLShort($this->get(2));
|
|
}
|
|
|
|
public function getSignedShort() : int{
|
|
return $this->endianness === self::BIG_ENDIAN ? Binary::readSignedShort($this->get(2)) : Binary::readSignedLShort($this->get(2));
|
|
}
|
|
|
|
public function putShort($v){
|
|
$this->buffer .= $this->endianness === self::BIG_ENDIAN ? Binary::writeShort($v) : Binary::writeLShort($v);
|
|
}
|
|
|
|
public function getInt(bool $network = false) : int{
|
|
if($network === true){
|
|
return Binary::readVarInt($this->buffer, $this->offset);
|
|
}
|
|
return $this->endianness === self::BIG_ENDIAN ? Binary::readInt($this->get(4)) : Binary::readLInt($this->get(4));
|
|
}
|
|
|
|
public function putInt($v, bool $network = false){
|
|
if($network === true){
|
|
$this->buffer .= Binary::writeVarInt($v);
|
|
}else{
|
|
$this->buffer .= $this->endianness === self::BIG_ENDIAN ? Binary::writeInt($v) : Binary::writeLInt($v);
|
|
}
|
|
}
|
|
|
|
public function getLong(bool $network = false) : int{
|
|
if($network){
|
|
return Binary::readVarLong($this->buffer, $this->offset);
|
|
}
|
|
return $this->endianness === self::BIG_ENDIAN ? Binary::readLong($this->get(8)) : Binary::readLLong($this->get(8));
|
|
}
|
|
|
|
public function putLong($v, bool $network = false){
|
|
if($network){
|
|
$this->buffer .= Binary::writeVarLong($v);
|
|
}else{
|
|
$this->buffer .= $this->endianness === self::BIG_ENDIAN ? Binary::writeLong($v) : Binary::writeLLong($v);
|
|
}
|
|
}
|
|
|
|
public function getFloat() : float{
|
|
return $this->endianness === self::BIG_ENDIAN ? Binary::readFloat($this->get(4)) : Binary::readLFloat($this->get(4));
|
|
}
|
|
|
|
public function putFloat($v){
|
|
$this->buffer .= $this->endianness === self::BIG_ENDIAN ? Binary::writeFloat($v) : Binary::writeLFloat($v);
|
|
}
|
|
|
|
public function getDouble() : float{
|
|
return $this->endianness === self::BIG_ENDIAN ? Binary::readDouble($this->get(8)) : Binary::readLDouble($this->get(8));
|
|
}
|
|
|
|
public function putDouble($v){
|
|
$this->buffer .= $this->endianness === self::BIG_ENDIAN ? Binary::writeDouble($v) : Binary::writeLDouble($v);
|
|
}
|
|
|
|
public function getString(bool $network = false){
|
|
$len = $network ? Binary::readUnsignedVarInt($this->buffer, $this->offset) : $this->getShort();
|
|
return $this->get($len);
|
|
}
|
|
|
|
public function putString($v, bool $network = false){
|
|
if($network === true){
|
|
$this->put(Binary::writeUnsignedVarInt(strlen($v)));
|
|
}else{
|
|
$this->putShort(strlen($v));
|
|
}
|
|
$this->buffer .= $v;
|
|
}
|
|
|
|
public function getArray() : array{
|
|
$data = [];
|
|
self::toArray($data, $this->data);
|
|
return $data;
|
|
}
|
|
|
|
private static function toArray(array &$data, Tag $tag){
|
|
/** @var CompoundTag[]|ListTag[]|IntArrayTag[] $tag */
|
|
foreach($tag as $key => $value){
|
|
if($value instanceof CompoundTag or $value instanceof ListTag or $value instanceof IntArrayTag){
|
|
$data[$key] = [];
|
|
self::toArray($data[$key], $value);
|
|
}else{
|
|
$data[$key] = $value->getValue();
|
|
}
|
|
}
|
|
}
|
|
|
|
public static function fromArrayGuesser($key, $value){
|
|
if(is_int($value)){
|
|
return new IntTag($key, $value);
|
|
}elseif(is_float($value)){
|
|
return new FloatTag($key, $value);
|
|
}elseif(is_string($value)){
|
|
return new StringTag($key, $value);
|
|
}elseif(is_bool($value)){
|
|
return new ByteTag($key, $value ? 1 : 0);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
private static function fromArray(Tag $tag, array $data, callable $guesser){
|
|
foreach($data as $key => $value){
|
|
if(is_array($value)){
|
|
$isNumeric = true;
|
|
$isIntArray = true;
|
|
foreach($value as $k => $v){
|
|
if(!is_numeric($k)){
|
|
$isNumeric = false;
|
|
break;
|
|
}elseif(!is_int($v)){
|
|
$isIntArray = false;
|
|
}
|
|
}
|
|
$tag{$key} = $isNumeric ? ($isIntArray ? new IntArrayTag($key, []) : new ListTag($key, [])) : new CompoundTag($key, []);
|
|
self::fromArray($tag->{$key}, $value, $guesser);
|
|
}else{
|
|
$v = call_user_func($guesser, $key, $value);
|
|
if($v instanceof Tag){
|
|
$tag{$key} = $v;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public function setArray(array $data, callable $guesser = null){
|
|
$this->data = new CompoundTag("", []);
|
|
self::fromArray($this->data, $data, $guesser ?? [self::class, "fromArrayGuesser"]);
|
|
}
|
|
|
|
/**
|
|
* @return CompoundTag|array
|
|
*/
|
|
public function getData(){
|
|
return $this->data;
|
|
}
|
|
|
|
/**
|
|
* @param CompoundTag|array $data
|
|
*/
|
|
public function setData($data){
|
|
$this->data = $data;
|
|
}
|
|
|
|
}
|