Allow external authentication methods to work on linux (#913)

* add the origin sdk hooks

* fmt

* more fmt

primedev/Northstar.cmake

@@ -188,6 +188,8 @@ add_library(
     "vscript/vscript.h"
     "windows/libsys.cpp"
     "windows/libsys.h"
+    "origin/origin.cpp"
+    "origin/origin.h"
     "dllmain.cpp"
     "ns_version.h"
     "Northstar.def"

primedev/origin/origin.cpp

@@ -0,0 +1,44 @@
+#include "origin.h"
+#include <cstdint>
+
+static bool(__fastcall* o_pCheckIfOriginIsInstalled)() = nullptr;
+static bool __fastcall h_CheckIfOriginIsInstalled()
+{
+	if (!strstr(GetCommandLineA(), "-noOriginStartup"))
+		return o_pCheckIfOriginIsInstalled();
+
+	if (o_pCheckIfOriginIsInstalled())
+	{
+		NS::log::NORTHSTAR->warn(
+			"Origin is NOT installed according to OriginSDK's check (HKLM\\SOFTWARE\\Wow6432Node\\Origin\\ClientPath is missing/empty).");
+		NS::log::NORTHSTAR->warn("We are bypassing this check in case LSX server is remotely ran (such as in Linux in another WINE "
+								 "prefix), but note that things will fail if Origin is actually not running.");
+	}
+
+	return true;
+}
+
+static uint64_t(__fastcall* o_pTryToStartOrigin)(void* a1) = nullptr;
+static uint64_t __fastcall h_TryToStartOrigin(void* a1)
+{
+	if (!strstr(GetCommandLineA(), "-noOriginStartup"))
+		return o_pTryToStartOrigin(a1);
+
+	if (o_pTryToStartOrigin(a1) != 0)
+	{
+		NS::log::NORTHSTAR->warn("Origin process has failed to start. We are ignoring this and let it fail on LSX connection attempt, "
+								 "because LSX might still be up regardless, even if this failed.");
+	}
+	return 0;
+}
+
+ON_DLL_LOAD("OriginSDK.dll", OriginSDKFuncs, (CModule module))
+{
+	// these hooks are required for linux to work without EA app or Origin in the same wine prefix
+
+	o_pCheckIfOriginIsInstalled = module.Offset(0xa1850).RCast<decltype(o_pCheckIfOriginIsInstalled)>();
+	HookAttach(&(PVOID&)o_pCheckIfOriginIsInstalled, (PVOID)h_CheckIfOriginIsInstalled);
+
+	o_pTryToStartOrigin = module.Offset(0xa19b0).RCast<decltype(o_pTryToStartOrigin)>();
+	HookAttach(&(PVOID&)o_pTryToStartOrigin, (PVOID)h_TryToStartOrigin);
+}

primedev/origin/origin.h

@@ -0,0 +1 @@
+#pragma once