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Add DLL to modify PlayFab url

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This commit is contained in:
AeonLucid
2021-10-30 04:40:10 +02:00
parent 377b99b4a6
commit 560a39a70b
23 changed files with 501 additions and 40 deletions
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src/Prospect.Agent/Prospect.Agent.vcxproj
+18 -7
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@@ -47,13 +47,21 @@
<PropertyGroup Label="UserMacros" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<LinkIncremental>true</LinkIncremental>
<OutDir>$(ProjectDir)bin\$(Platform)\$(Configuration)\</OutDir>
<OutDir>$(SolutionDir)Prospect.Launcher\Libs</OutDir>
<IntDir>$(ProjectDir)bin\intermediate\$(Platform)\$(Configuration)\</IntDir>
<LibraryPath>$(LibraryPath)</LibraryPath>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<LinkIncremental>false</LinkIncremental>
<OutDir>$(ProjectDir)bin\$(Platform)\$(Configuration)\</OutDir>
<OutDir>$(SolutionDir)Prospect.Launcher\Libs</OutDir>
<IntDir>$(ProjectDir)bin\intermediate\$(Platform)\$(Configuration)\</IntDir>
<LibraryPath>$(LibraryPath)</LibraryPath>
</PropertyGroup>
<PropertyGroup Label="Vcpkg" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<VcpkgUseStatic>true</VcpkgUseStatic>
</PropertyGroup>
<PropertyGroup Label="Vcpkg" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<VcpkgUseStatic>true</VcpkgUseStatic>
</PropertyGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<ClCompile>
@@ -63,13 +71,13 @@
<ConformanceMode>true</ConformanceMode>
<PrecompiledHeader>NotUsing</PrecompiledHeader>
<PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
<AdditionalIncludeDirectories>$(ProjectDir)libs\detours\;$(UESDK);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
</ClCompile>
<Link>
<SubSystem>Windows</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableUAC>false</EnableUAC>
<AdditionalDependencies>detours.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -82,7 +90,8 @@
<ConformanceMode>true</ConformanceMode>
<PrecompiledHeader>NotUsing</PrecompiledHeader>
<PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
<AdditionalIncludeDirectories>$(ProjectDir)libs\detours\;$(UESDK);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<Optimization>MinSpace</Optimization>
</ClCompile>
<Link>
<SubSystem>Windows</SubSystem>
@@ -90,12 +99,14 @@
<OptimizeReferences>true</OptimizeReferences>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableUAC>false</EnableUAC>
<AdditionalDependencies>detours.lib;%(AdditionalDependencies)</AdditionalDependencies>
<AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemGroup>
<ClInclude Include="hooks.h" />
<ClInclude Include="logger.h" />
<ClInclude Include="main.h" />
<ClInclude Include="SDK.h" />
<ClInclude Include="SDK_Memory.h" />
</ItemGroup>
<ItemGroup>
<ClCompile Include="logger.cpp" />
src/Prospect.Agent/Prospect.Agent.vcxproj.filters
+8 -2
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@@ -15,10 +15,16 @@
</Filter>
</ItemGroup>
<ItemGroup>
<ClInclude Include="main.h">
<ClInclude Include="logger.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="logger.h">
<ClInclude Include="SDK.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="hooks.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="SDK_Memory.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
src/Prospect.Agent/SDK.h
+96
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@@ -0,0 +1,96 @@
#pragma once
#include <cstdint>
#include <locale>
#include <string>
#include "SDK_Memory.h"
namespace SDK
{
template<class T>
struct TArray
{
friend struct FString;
TArray()
{
Data = nullptr;
Count = Max = 0;
}
int Num() const
{
return Count;
}
T& operator[](int i)
{
return Data[i];
}
const T& operator[](int i) const
{
return Data[i];
}
bool IsValidIndex(int i) const
{
return i < Num();
}
private:
T* Data;
int32_t Count;
int32_t Max;
};
struct FString : private TArray<wchar_t>
{
FString(const wchar_t* other)
{
Max = Count = *other ? std::wcslen(other) + 1 : 0;
if (Count)
{
Data = static_cast<wchar_t*>(GMalloc->Malloc(Count));
wcscpy_s(Data, Count, other);
}
}
FString(const std::wstring& other) : FString(other.c_str())
{
}
bool IsValid() const
{
return Data != nullptr;
}
const wchar_t* c_str() const
{
return Data;
}
std::string ToString() const
{
const auto length = std::wcslen(Data);
std::string str(length, '\0');
std::use_facet<std::ctype<wchar_t>>(std::locale()).narrow(Data, Data + length, '?', &str[0]);
return str;
}
};
struct UPlayFabAPISettings
{
FString VerticalName;
FString BaseServiceHost;
FString TitleId;
FString AdvertisingIdType;
FString AdvertisingIdValue;
bool DisableAdvertising = false;
};
}
src/Prospect.Agent/SDK_Memory.h
+79
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@@ -0,0 +1,79 @@
#pragma once
#include <cstdint>
#define DEFAULT_ALIGNMENT 0
namespace SDK
{
class FExec
{
public:
virtual ~FExec() = default;
private:
virtual bool Exec(void* world, void* cmd, void* ar) = 0;
};
class FMalloc : FExec
{
public:
virtual void* Malloc(SIZE_T Count, uint32_t Alignment = DEFAULT_ALIGNMENT) = 0;
virtual void* TryMalloc(SIZE_T Count, uint32_t Alignment = DEFAULT_ALIGNMENT) = 0;
virtual void* Realloc(void* Original, SIZE_T Count, uint32_t Alignment = DEFAULT_ALIGNMENT) = 0;
virtual void* TryRealloc(void* Original, SIZE_T Count, uint32_t Alignment = DEFAULT_ALIGNMENT) = 0;
virtual void Free(void* Original) = 0;
virtual SIZE_T QuantizeSize(SIZE_T Count, uint32_t Alignment)
{
return Count;
}
virtual bool GetAllocationSize(void* Original, SIZE_T& SizeOut)
{
return false;
}
virtual void Trim(bool bTrimThreadCaches)
{
}
virtual void SetupTLSCachesOnCurrentThread()
{
}
virtual void ClearAndDisableTLSCachesOnCurrentThread()
{
}
virtual void InitializeStatsMetadata();
virtual bool Exec(void* InWorld, void* Cmd, void* Ar) override
{
return false;
}
virtual void UpdateStats() = 0;
virtual void GetAllocatorStats(void* out_Stats) = 0;
virtual void DumpAllocatorStats(class FOutputDevice& Ar) = 0;
virtual bool IsInternallyThreadSafe() const
{
return false;
}
virtual bool ValidateHeap()
{
return(true);
}
virtual const TCHAR* GetDescriptiveName() = 0;
};
FMalloc* GMalloc;
}
src/Prospect.Agent/hooks.h
+3
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@@ -0,0 +1,3 @@
#pragma once
#include "SDK.h"
src/Prospect.Agent/logger.cpp
+3
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@@ -1,5 +1,8 @@
#include "logger.h"
#include <cstdio>
#include <Windows.h>
HANDLE h_out = nullptr, h_old_out = nullptr;
HANDLE h_err = nullptr, h_old_err = nullptr;
HANDLE h_in = nullptr, h_old_in = nullptr;
src/Prospect.Agent/logger.h
+1 -4
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@@ -1,8 +1,5 @@
#pragma once
#include <cstdio>
#include <Windows.h>
namespace logger
{
void Attach();
@@ -12,4 +9,4 @@ namespace logger
bool Print(const char* fmt, ...);
char ReadKey();
};
}
src/Prospect.Agent/main.cpp
+68 -6
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@@ -1,17 +1,71 @@
#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include <MinHook.h>
#include <cstdio>
#include "main.h"
#include "logger.h"
#include <detours.h>
#include "SDK.h"
#include "SDK_Memory.h"
/**
* Variable offset, find with "STOPMOVIECAPTURE", scroll up.
*/
constexpr uintptr_t OffsetGMalloc = 0x5C9A3F8;
/**
* Function offset, find with "?sdk=".
*/
constexpr uintptr_t OffsetPlayFabApiGetUrl = 0xCA5010;
/**
* Function hooks.
*/
typedef SDK::FString(__fastcall* tPlayFabApiGetUrl)(SDK::UPlayFabAPISettings*, const SDK::FString&);
tPlayFabApiGetUrl OldPlayFabApiGetUrl;
SDK::FString __fastcall PlayFabApiGetUrlProxy(SDK::UPlayFabAPISettings* thiz, const SDK::FString& callPath)
{
logger::Print("[Agent] GetURL called with callPath %s\n", callPath.ToString().c_str());
return std::wstring(L"http://127.0.0.1:8888") + std::wstring(callPath.c_str());
}
DWORD WINAPI OnDllAttach(LPVOID base)
{
logger::Attach();
logger::Print("[Agent] DLL Attached\n");
// TODO: Patch.
const auto hModule = GetModuleHandleW(nullptr);
const auto hModulePtr = reinterpret_cast<uintptr_t>(hModule);
logger::Print("[Agent] DLL Exit\n");
FreeLibraryAndExitThread(static_cast<HMODULE>(base), 1);
// Initialize GMalloc.
SDK::GMalloc = *reinterpret_cast<SDK::FMalloc**>(hModulePtr + OffsetGMalloc);
// Initialize MinHook.
if (MH_Initialize() != MH_OK)
{
logger::Print("[Agent] Failed to initialize MinHook\n");
FreeLibraryAndExitThread(hModule, 1);
}
// Hook UPlayFabAPISettings::GetUrl.
const auto pTarget = reinterpret_cast<LPVOID>(hModulePtr + OffsetPlayFabApiGetUrl);
const auto ppOriginal = reinterpret_cast<LPVOID*>(&OldPlayFabApiGetUrl);
const auto mhStatus = MH_CreateHook(pTarget, &PlayFabApiGetUrlProxy, ppOriginal);
if (mhStatus != MH_OK)
{
logger::Print("[Agent] Failed to create PlayFabAPIGetUrl hook (%d)\n", mhStatus);
FreeLibraryAndExitThread(hModule, 1);
}
if (MH_EnableHook(pTarget) != MH_OK)
{
logger::Print("[Agent] Failed to enable PlayFabAPIGetUrl hook\n");
FreeLibraryAndExitThread(hModule, 1);
}
logger::Print("[Agent] DLL Initialized\n");
ExitThread(1);
}
BOOL WINAPI DllMain(
@@ -27,10 +81,18 @@ BOOL WINAPI DllMain(
// Allocate a console.
AllocConsole();
freopen_s(reinterpret_cast<FILE**>(stdout), "CONOUT$", "w", stdout);
// Attach logger.
logger::Attach();
// Spawn thread.
CreateThread(nullptr, 0, OnDllAttach, hinstDll, 0, nullptr);
}
else if (fdwReason == DLL_PROCESS_DETACH)
{
// Detach logger.
logger::Detach();
}
return TRUE;
}
src/Prospect.Agent/main.h
-4
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@@ -1,4 +0,0 @@
#pragma once
#define WIN32_LEAN_AND_MEAN
#include <windows.h>