ClientDataToSkinDataHelper.php

<?php
 
/*
 * This file is part of BedrockProtocol.
 * Copyright (C) 2014-2022 PocketMine Team <https://github.com/pmmp/BedrockProtocol>
 *
 * BedrockProtocol 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.
 */
 
declare(strict_types=1);
 
namespace pocketmine\network\mcpe\protocol\types\login\clientdata;
 
use pocketmine\network\mcpe\protocol\types\skin\PersonaPieceTintColor;
use pocketmine\network\mcpe\protocol\types\skin\PersonaSkinPiece;
use pocketmine\network\mcpe\protocol\types\skin\SkinAnimation;
use pocketmine\network\mcpe\protocol\types\skin\SkinData;
use pocketmine\network\mcpe\protocol\types\skin\SkinImage;
use function array_map;
use function base64_decode;
 
final class ClientDataToSkinDataHelper{
 
    private static function safeB64Decode(string $base64, string $context) : string{
        $result = base64_decode($base64, true);
        if($result === false){
            throw new \InvalidArgumentException("$context: Malformed base64, cannot be decoded");
        }
        return $result;
    }
 
    public static function fromClientData(ClientData $clientData) : SkinData{
        $animations = [];
        foreach($clientData->AnimatedImageData as $k => $animation){
            $animations[] = new SkinAnimation(
                new SkinImage(
                    $animation->ImageHeight,
                    $animation->ImageWidth,
                    self::safeB64Decode($animation->Image, "AnimatedImageData.$k.Image")
                ),
                $animation->Type,
                $animation->Frames,
                $animation->AnimationExpression
            );
        }
        return new SkinData(
            $clientData->SkinId,
            "",
            self::safeB64Decode($clientData->SkinResourcePatch, "SkinResourcePatch"),
            new SkinImage($clientData->SkinImageHeight, $clientData->SkinImageWidth, self::safeB64Decode($clientData->SkinData, "SkinData")),
            $animations,
            new SkinImage($clientData->CapeImageHeight, $clientData->CapeImageWidth, self::safeB64Decode($clientData->CapeData, "CapeData")),
            self::safeB64Decode($clientData->SkinGeometryData, "SkinGeometryData"),
            self::safeB64Decode($clientData->SkinGeometryDataEngineVersion, "SkinGeometryDataEngineVersion"), //yes, they actually base64'd the version!
            self::safeB64Decode($clientData->SkinAnimationData, "SkinAnimationData"),
            $clientData->CapeId,
            null,
            $clientData->ArmSize,
            $clientData->SkinColor,
            array_map(function(ClientDataPersonaSkinPiece $piece) : PersonaSkinPiece{
                return new PersonaSkinPiece($piece->PieceId, $piece->PieceType, $piece->PackId, $piece->IsDefault, $piece->ProductId);
            }, $clientData->PersonaPieces),
            array_map(function(ClientDataPersonaPieceTintColor $tint) : PersonaPieceTintColor{
                return new PersonaPieceTintColor($tint->PieceType, $tint->Colors);
            }, $clientData->PieceTintColors),
            true,
            $clientData->PremiumSkin,
            $clientData->PersonaSkin,
            $clientData->CapeOnClassicSkin,
            true, //assume this is true? there's no field for it ...
            $clientData->OverrideSkin ?? true,
        );
    }
}