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https://github.com/pmmp/PocketMine-MP.git
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76f1ee1827
This prevents plugins sending wrong packets at the compiler level (or would, if we had a compiler). It's more robust than a getter for client/server and throwing an exception since a static analysis tool can detect faults created by sending wrong packets from the server. This is also used to deny service to dodgy clients which send wrong packets to the server to attack it.
87 lines
2.7 KiB
PHP
87 lines
2.7 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\protocol;
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#include <rules/DataPacket.h>
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use pocketmine\network\BadPacketException;
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use pocketmine\network\mcpe\handler\SessionHandler;
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use pocketmine\network\mcpe\protocol\types\MismatchTransactionData;
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use pocketmine\network\mcpe\protocol\types\NormalTransactionData;
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use pocketmine\network\mcpe\protocol\types\ReleaseItemTransactionData;
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use pocketmine\network\mcpe\protocol\types\TransactionData;
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use pocketmine\network\mcpe\protocol\types\UseItemOnEntityTransactionData;
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use pocketmine\network\mcpe\protocol\types\UseItemTransactionData;
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/**
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* This packet effectively crams multiple packets into one.
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*/
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class InventoryTransactionPacket extends DataPacket implements ClientboundPacket, ServerboundPacket{
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public const NETWORK_ID = ProtocolInfo::INVENTORY_TRANSACTION_PACKET;
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public const TYPE_NORMAL = 0;
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public const TYPE_MISMATCH = 1;
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public const TYPE_USE_ITEM = 2;
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public const TYPE_USE_ITEM_ON_ENTITY = 3;
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public const TYPE_RELEASE_ITEM = 4;
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/** @var TransactionData */
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public $trData;
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protected function decodePayload() : void{
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$transactionType = $this->getUnsignedVarInt();
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switch($transactionType){
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case self::TYPE_NORMAL:
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$this->trData = new NormalTransactionData();
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break;
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case self::TYPE_MISMATCH:
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$this->trData = new MismatchTransactionData();
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break;
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case self::TYPE_USE_ITEM:
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$this->trData = new UseItemTransactionData();
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break;
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case self::TYPE_USE_ITEM_ON_ENTITY:
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$this->trData = new UseItemOnEntityTransactionData();
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break;
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case self::TYPE_RELEASE_ITEM:
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$this->trData = new ReleaseItemTransactionData();
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break;
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default:
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throw new BadPacketException("Unknown transaction type $transactionType");
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}
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$this->trData->decode($this);
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}
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protected function encodePayload() : void{
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$this->putUnsignedVarInt($this->trData->getTypeId());
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$this->trData->encode($this);
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}
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public function handle(SessionHandler $handler) : bool{
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return $handler->handleInventoryTransaction($this);
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}
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}
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