pPlat/adDetour.hpp at master · saltedfishstudio/pPlat · GitHub

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#pragma once
#pragma comment(lib, "detours.lib")

#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include <type_traits>
#include <vector>
#include <detours.h>
using namespace std;

namespace pPlat
{
	namespace Native
	{
		enum class convention_type
		{
			stdcall_t,
			cdecl_t,
			thiscall_t,
			fastcall_t,
			winapi_t,
			thiscall_r
		};

		enum class convention_type_n
		{
			winapi_t
		};

		template <convention_type tp, typename retn, typename convention, typename ...args>
		struct convention;

		template <typename retn, typename ...args>
		struct convention<convention_type::stdcall_t, retn, args...>
		{
			typedef retn(__stdcall *type)(args ...);
		};

		template <typename retn, typename ...args>
		struct convention<convention_type::cdecl_t, retn, args...>
		{
			typedef retn(__cdecl *type)(args ...);
		};

		template <typename retn, typename ...args>
		struct convention<convention_type::thiscall_t, retn, args...>
		{
			typedef retn(__stdcall *type)(args ...);
		};

		template <typename retn, typename ...args>
		struct convention<convention_type::fastcall_t, retn, args...>
		{
			typedef retn(__fastcall *type)(args ...);
		};

		template <typename retn, typename ...args>
		struct convention<convention_type::winapi_t, retn, args...>
		{
			typedef retn(WINAPI *type)(args ...);
		};

		template <typename retn, typename ...args>
		struct convention<convention_type::thiscall_r, retn, args...>
		{
			typedef retn(__thiscall *type)(args ...);
		};

		typedef struct DetourEntry
		{
			void* orig;
			void* target;
			void* detour;
			char* fncName;

			DetourEntry(void* o, void* t, void* d, char* f) : orig(o), target(t), detour(d), fncName(f) {}
		} DetourEntry;

		class Detour
		{
		private:
			std::vector<DetourEntry> m_detourList;
		public:
			void* Install(void* target, void* detour, char* fncName);
			bool RemoveHooks() const;
		};
		template <DWORD ptr,convention_type tp, typename retn, typename ...args>
		class MAKE_CALL
		{
			typedef typename convention<tp, retn, args...>::type type;
		public:
			type _orig;
			MAKE_CALL() : _orig(0)
			{
				DWORD mdd = (DWORD)GetModuleHandleA(0) + ptr;
				_orig = (type)mdd;
			}
			retn Call(args ... p)
			{
     				return _orig(p...);
			}
		};
		template <convention_type tp, typename retn, typename ...args>
		class MAKE_HOOK
		{
			typedef typename convention<tp, retn, args...>::type type;


			bool _isApplied;
		public:
			type _orig;
			type _detour;

			MAKE_HOOK() : _isApplied(false), _orig(0), _detour(0)
			{
			}

			template <typename T>
			MAKE_HOOK(T pFunc, type detour)
			{
				Apply<T>(pFunc, detour);
			}

			~MAKE_HOOK()
			{
				Remove();
			}

			template <typename T>
			void Apply(T pFunc, type detour)
			{
				static auto Instance = new Detour();
				_detour = detour;
				_orig = (type)Instance->Install((void*)pFunc, (void*)_detour, "null_xdkappa");
				_isApplied = _orig != nullptr;

				if (_orig == nullptr)
				{
					//Console::PrintLn("Faulty Hook, aborting: %s @%08x-%08x", __FUNCTION__, pFunc, _detour);
				}


			}


			bool Remove()
			{
				if (!_isApplied)
					return false;

				_isApplied = false;
				//return DetourRemove((PBYTE)_orig, (PBYTE)_detour) > 0;
				return true;
			}

			retn CallOriginal(args ... p)
			{
				return _orig(p...);
			}

			retn CallDetour(args ... p)
			{
				return _detour(p...);
			}

			bool IsApplied() const
			{
				return _isApplied;
			}
		};
	}
}