From 3e141afe4881357b76fbe9f873914b9408994f9a Mon Sep 17 00:00:00 2001
From: "Dylan K. Taylor" <odigiman@gmail.com>
Date: Sat, 29 Jul 2017 14:27:16 +0100
Subject: [PATCH] Exposed LoginPacket chain data to allow plugins to access
 this data

---
 src/pocketmine/network/mcpe/protocol/LoginPacket.php | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/pocketmine/network/mcpe/protocol/LoginPacket.php b/src/pocketmine/network/mcpe/protocol/LoginPacket.php
index dc5f2a38c..a92858edb 100644
--- a/src/pocketmine/network/mcpe/protocol/LoginPacket.php
+++ b/src/pocketmine/network/mcpe/protocol/LoginPacket.php
@@ -44,6 +44,11 @@ class LoginPacket extends DataPacket{
 	public $skinId;
 	public $skin = "";
 
+	/** @var array (the "chain" index contains one or more JWTs) */
+	public $chainData = [];
+	/** @var string */
+	public $clientDataJwt;
+	/** @var array decoded payload of the clientData JWT */
 	public $clientData = [];
 
 	public function canBeSentBeforeLogin() : bool{
@@ -62,8 +67,8 @@ class LoginPacket extends DataPacket{
 
 		$this->setBuffer($this->getString(), 0);
 
-		$chainData = json_decode($this->get($this->getLInt()));
-		foreach($chainData->{"chain"} as $chain){
+		$this->chainData = json_decode($this->get($this->getLInt()), true);
+		foreach($this->chainData["chain"] as $chain){
 			$webtoken = $this->decodeToken($chain);
 			if(isset($webtoken["extraData"])){
 				if(isset($webtoken["extraData"]["displayName"])){
@@ -78,7 +83,8 @@ class LoginPacket extends DataPacket{
 			}
 		}
 
-		$this->clientData = $this->decodeToken($this->get($this->getLInt()));
+		$this->clientDataJwt = $this->get($this->getLInt());
+		$this->clientData = $this->decodeToken($this->clientDataJwt);
 
 		$this->clientId = $this->clientData["ClientRandomId"] ?? null;
 		$this->serverAddress = $this->clientData["ServerAddress"] ?? null;