Data Packet initial parsing

src/network/protocol/DataPacket.php

@@ -0,0 +1,115 @@
+<?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/
+ * 
+ *
+*/
+
+class DataPacket extends stdClass{
+	public $id, $raw;
+	private $encoded = false;
+	private $decoded = false;	
+	private $offset;
+	
+	public function encode(){
+
+		$this->decoded = true;
+		$this->encoded = true;
+	}
+
+	private function get($len){
+		if($len <= 0){
+			return "";
+		}
+		if($len === true){
+			return substr($this->raw, $this->offset);
+		}
+		$this->offset += $len;
+		return substr($this->raw, $this->offset - $len, $len);
+	}
+	
+	private function getLong($unsigned = false){
+		return Utils::readLong($this->get(8), $unsigned);
+	}
+	
+	private function getInt($unsigned = false){
+		return Utils::readInt($this->get(4), $unsigned);
+	}
+	
+	private function getShort($unsigned = false){
+		return Utils::readShort($this->get(2), $unsigned);
+	}
+
+	private function getLTriad(){
+		return Utils::readTriad($this->get(3));
+	}
+	
+	private function getLTriad(){
+		return Utils::readTriad(strrev($this->get(3)));
+	}
+	
+	private function getByte(){
+		return ord($this->get(1));
+	}
+
+	private function getDataArray($len = 10){
+		$data = array();
+		for($i = 1; $i <= $len and !$this->feof(); ++$i){
+			$data[] = $this->get($this->getTriad());
+		}
+		return $data;
+	}	
+	
+	private function feof(){
+		return !isset($this->raw{$this->offset});
+	}
+
+	public function decode(){		
+		if(!isset($this->raw{0})){
+			return false;
+		}
+		$this->offset = 0;
+		switch($this->id){
+			case MC_PING:
+				$this->timestamp = $this->getLong();
+				break;
+			case MC_PONG:
+				$this->originalTimestamp = $this->getLong();
+				$this->timestamp = $this->getLong();
+				break;
+			case MC_CLIENT_CONNECT:
+				$this->clientID = $this->getLong();
+				$this->session = $this->getLong();
+				$this->unknown0 = $this->get(1);
+				break;
+			case MC_CLIENT_HANDSHAKE:
+				$this->cookie = $this->get(4);
+				$this->security = $this->get(1);
+				$this->port = $this->getShort(true);
+				$this->dataArray0 = $this->get($this->getByte());
+				$this->dataArray = $this->getDataArray(9);
+				$this->timestamp = $this->get(2);
+				$this->session2 = $this->getLong();
+				$this->session = $this->getLong();
+				break;
+			default:
+				return false;
+		}
+		$this->encoded = true;
+		$this->decoded = true;
+	}
+}

src/network/raknet/RakNetParser.php

@@ -121,7 +121,7 @@ class RakNetParser{
 	}
 	
 	private function parseDataPacket(){
-		$data = new stdClass;
+		$data = new DataPacket;
 		$data->pid = $this->getByte();
 		$data->reliability = ($data->pid & 0b11100000) >> 5;
 		$data->hasSplit = ($data->pid & 0b00010000) > 0;
@@ -152,7 +152,7 @@ class RakNetParser{
 			$data->splitID = $this->getShort();
 			$data->splitIndex = $this->getInt();
 			//error! no split packets allowed!
-			return;
+			return false;
 		}else{
 			$data->splitCount = 0;
 			$data->splitID = 0;
@@ -162,12 +162,12 @@ class RakNetParser{
 		if($data->length <= 0
 		or $this->orderChannel >= 32
 		or ($hasSplit === 1 and $splitIndex >= $splitCount)){
-			return;
+			return false;
 		}
 		
 		$data->id = $this->getByte();
-		$data->payload = $this->get($len - 1);
+		$data->raw = $this->get($len - 1);
-		
+		return $data;
 	}
 
 }