MinecraftConsoles/Minecraft.Client/Common
MrTheShy 4f2352361a Add Mojang/Ely.by/offline authentication system
The old Windows64 port had no real player identity — it used hardcoded
fake XUIDs, so anyone could impersonate anyone. This replaces that with
proper auth supporting Mojang, Ely.by, and offline accounts.

MCAuth library (new, MCAuth/):
  Mojang auth via MSA device code flow (XBL, SISU, MC services),
  Ely.by via Yggdrasil with 2FA, offline UUID generation matching
  Java Edition (MD5 v3 from "OfflinePlayer:<name>"). Multi-account
  manager with background token refresh, per-slot sessions, and
  on-disk token persistence. Server-side session verification via
  Mojang/Ely.by hasJoined API. Skin fetching and PNG validation
  from texture servers.

Network protocol (version bumped to 80):
  Three new packets (AuthScheme, AuthResponse, AuthResult) implement
  a server-driven auth handshake before login completes. Player
  identity migrated from 64-bit XUID to 128-bit GameUUID backed by
  two uint64 fields (hi/lo). readPlayerUID/writePlayerUID now
  serialize 16 bytes on the wire. Old and new clients cannot connect
  to each other — version mismatch is rejected at PreLogin.

Save migration:
  Map data mappings auto-migrate from old format: the old 64-bit
  XUID is placed in hi, lo is set to 0 as a sentinel. On first
  access by the real player, the sentinel entry is upgraded in-place
  to the full 128-bit UUID. Format detection is by file size (2080,
  2112, or 4160 bytes). Player .dat filenames inside saveData.ms
  change from decimal XUID to dashed UUID — old saves need manual
  entry renaming in the archive.

UI:
  NativeUIRenderer: immediate-mode drawing system (quads, text,
  9-slice panels, scrollbars, focus lists) for rendering auth
  screens without Flash/Scaleform. UIScene_MSAuth handles device
  code display, Ely.by credential input with 2FA, per-account
  skin head preview, and multi-account add/remove/switch.

Server:
  online-mode and auth-provider (mojang/elyby) in server.properties.
  Whitelist and ban checks validate against the server-verified UUID.
  Incompatible auth scheme logs which provider the server expects
  vs what the client is using.

Also fixes a pre-existing exploit where any client could send a
DebugOptionsPacket to grant themselves CraftAnything and other debug
privileges on any server — now requires OP status server-side.
2026-03-23 01:14:23 +01:00
..
Audio Fix quiet in-game audio after engine update #897 (#1171) 2026-03-12 01:43:12 -05:00
Colours Modernize project codebase (#906) 2026-03-08 18:08:36 -05:00
DLC Modernize project codebase (#906) 2026-03-08 18:08:36 -05:00
DummyTexturePack/res Initial commit 2026-03-01 12:16:08 +08:00
GameRules Fixed DLC map loading / saving, missing chunks (#1114) 2026-03-10 22:04:19 -05:00
Leaderboards Modernize project codebase (#906) 2026-03-08 18:08:36 -05:00
Media Add Mojang/Ely.by/offline authentication system 2026-03-23 01:14:23 +01:00
Network Add Mojang/Ely.by/offline authentication system 2026-03-23 01:14:23 +01:00
res Move project to CMake (#781) 2026-03-17 16:39:22 -05:00
Telemetry Modernize project codebase (#906) 2026-03-08 18:08:36 -05:00
Trial Initial commit 2026-03-01 12:16:08 +08:00
Tutorial Modernize project codebase (#906) 2026-03-08 18:08:36 -05:00
UI Add Mojang/Ely.by/offline authentication system 2026-03-23 01:14:23 +01:00
XUI Modernize project codebase (#906) 2026-03-08 18:08:36 -05:00
zlib Modernize project codebase (#906) 2026-03-08 18:08:36 -05:00
App_Defines.h feat: TU19 (Dec 2014) Features & Content (#155) 2026-03-03 03:04:10 +08:00
App_enums.h Add Render Distance option. (#675) 2026-03-06 19:14:06 -06:00
App_structs.h Save FOV value to settings (#670) 2026-03-06 16:38:16 -06:00
C4JMemoryPool.h Initial commit 2026-03-01 12:16:08 +08:00
C4JMemoryPoolAllocator.h Initial commit 2026-03-01 12:16:08 +08:00
Console_Awards_enum.h Initial commit 2026-03-01 12:16:08 +08:00
Console_Debug_enum.h feat: TU19 (Dec 2014) Features & Content (#155) 2026-03-03 03:04:10 +08:00
Console_Utils.cpp Dedicated Server Software - Minecraft.Server.exe (#498) 2026-03-15 02:32:50 -05:00
ConsoleGameMode.cpp Optimize Path for Tutorial.h in ConsoleGameMode.cpp 2026-03-01 15:05:24 -07:00
ConsoleGameMode.h Optimize TutorialMode.h Filepath in ConsoleGameMode.h 2026-03-01 15:06:42 -07:00
Consoles_App.cpp Add Mojang/Ely.by/offline authentication system 2026-03-23 01:14:23 +01:00
Consoles_App.h Add Mojang/Ely.by/offline authentication system 2026-03-23 01:14:23 +01:00
Minecraft_Macros.h Initial commit 2026-03-01 12:16:08 +08:00
PostProcesser.h Fix split-screen UI wrong positioning on window resize (#989) 2026-03-08 22:16:58 -05:00
Potion_Macros.h feat: TU19 (Dec 2014) Features & Content (#155) 2026-03-03 03:04:10 +08:00
xuiscene_base.h Initial commit 2026-03-01 12:16:08 +08:00