Improvements to try resolve the issues with login checksums.

ptlinux/login_diagnostics.py

@@ -5,6 +5,7 @@ from __future__ import annotations
 from dataclasses import asdict, dataclass
 from datetime import datetime
 import hashlib
+import json
 from pathlib import Path
 import platform
 import socket
@@ -17,6 +18,7 @@ from .overlay import (
 	COMPATIBILITY_BINARY_HASHES,
 	CURRENT_V21_BINARY_HASHES,
 	PATCHED_V21_GAME_DLL_SHA256,
+	RETIRED_POST_AUTH_GAME_DLL_SHA256,
 )
 from .paths import AppPaths
 from .runtime import (
@@ -41,9 +43,6 @@ DEFAULT_LOGIN_TIMEOUT_SECONDS = 5.0
 VERIFIED_GAME_PROFILES = frozenset(
 	{"v21.75.83", "verified-compatibility"}
 )
-RETIRED_POST_AUTH_GAME_DLL_SHA256 = (
-	"93cd27284eb294753da1111c99bfc9689f82b6d4a59302aee9fdbd8cb52452dd"
-)
 
 
 class _Closable(Protocol):
@@ -82,7 +81,13 @@ class LoginDiagnosticReport:
 	game_exe_sha256: str | None
 	game_dll: str
 	game_dll_sha256: str | None
+	source_game_exe_sha256: str | None
+	source_game_dll_sha256: str | None
+	runtime_matches_managed_source: bool
 	game_profile: str
+	depot_build: int | None
+	depot_version: str | None
+	depot_completed_at: str | None
 	world_fix_helper: str
 	world_fix_helper_sha256: str | None
 	world_fix_helper_ready: bool
@@ -168,7 +173,16 @@ def inspect_login_environment(
 	game_dll = game_root / "game.dll"
 	game_exe_sha256 = _sha256_if_file(game_exe)
 	game_dll_sha256 = _sha256_if_file(game_dll)
+	source_game_exe_sha256 = _sha256_if_file(paths.source_game / "Game.exe")
+	source_game_dll_sha256 = _sha256_if_file(paths.source_game / "game.dll")
+	runtime_matches_managed_source = (
+		game_exe_sha256 is not None
+		and game_dll_sha256 is not None
+		and game_exe_sha256 == source_game_exe_sha256
+		and game_dll_sha256 == source_game_dll_sha256
+	)
 	game_profile = classify_game_profile(game_exe_sha256, game_dll_sha256)
+	depot_state = _read_json_object(paths.native_depot_state)
 	world_fix_helper = packaged_world_fix_helper()
 	world_fix_helper_sha256 = _sha256_if_file(world_fix_helper)
 	world_fix_helper_ready = (
@@ -186,11 +200,13 @@ def inspect_login_environment(
 		prefix_ready,
 		directx_ready,
 		latest_log,
+		runtime_matches_managed_source,
 	)
 	return LoginDiagnosticReport(
 		preflight_ok=(
 			probe.reachable
 			and game_profile in VERIFIED_GAME_PROFILES
+			and runtime_matches_managed_source
 			and selection is not None
 			and prefix_ready
 			and directx_ready
@@ -208,7 +224,13 @@ def inspect_login_environment(
 		game_exe_sha256=game_exe_sha256,
 		game_dll=str(game_dll),
 		game_dll_sha256=game_dll_sha256,
+		source_game_exe_sha256=source_game_exe_sha256,
+		source_game_dll_sha256=source_game_dll_sha256,
+		runtime_matches_managed_source=runtime_matches_managed_source,
 		game_profile=game_profile,
+		depot_build=_integer_or_none(depot_state.get("build")),
+		depot_version=_string_or_none(depot_state.get("version")),
+		depot_completed_at=_string_or_none(depot_state.get("completed_at")),
 		world_fix_helper=str(world_fix_helper),
 		world_fix_helper_sha256=world_fix_helper_sha256,
 		world_fix_helper_ready=world_fix_helper_ready,
@@ -331,6 +353,7 @@ def _diagnostic_warnings(
 	prefix_ready: bool,
 	directx_ready: bool,
 	latest_log: Path | None,
+	runtime_matches_managed_source: bool,
 ) -> tuple[str, ...]:
 	warnings: list[str] = []
 	if not probe.reachable:
@@ -356,6 +379,11 @@ def _diagnostic_warnings(
 			"The retired 0.5.8 disk-patched game.dll is active and can stall login; "
 			"run prepare or launch with the current launcher to restore the publisher DLL."
 		)
+	if not runtime_matches_managed_source:
+		warnings.append(
+			"The runtime Game.exe/game.dll pair does not match the managed updater "
+			"source; run prepare after update --repair before testing login again."
+		)
 	if runtime_error is not None:
 		warnings.append(runtime_error)
 	elif not prefix_ready:
@@ -367,6 +395,24 @@ def _diagnostic_warnings(
 	return tuple(warnings)
 
 
+def _read_json_object(path: Path) -> dict[str, object]:
+	try:
+		value = json.loads(path.read_text(encoding="utf-8"))
+	except (OSError, UnicodeError, json.JSONDecodeError):
+		return {}
+	return value if isinstance(value, dict) else {}
+
+
+def _integer_or_none(value: object) -> int | None:
+	if isinstance(value, bool) or not isinstance(value, int):
+		return None
+	return value
+
+
+def _string_or_none(value: object) -> str | None:
+	return value if isinstance(value, str) else None
+
+
 def _sha256(path: Path) -> str:
 	digest = hashlib.sha256()
 	with path.open("rb") as handle: