Cleanup unused code inside launcher
This commit is contained in:
AeonLucid
@@ -23,14 +23,6 @@ namespace Prospect.Launcher.Invoke
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out ProcessInformation lpProcessInformation) => CreateProcess(lpApplicationName, lpCommandLine, IntPtr.Zero,
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IntPtr.Zero, false, dwCreationFlags, IntPtr.Zero, null, ref lpStartupInfo, out lpProcessInformation);
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[DllImport("kernel32.dll", SetLastError = true)]
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public static extern bool ReadProcessMemory(
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IntPtr hProcess,
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IntPtr lpBaseAddress,
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byte[] lpBuffer,
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Int32 nSize,
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out IntPtr lpNumberOfBytesRead);
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[DllImport("kernel32.dll", SetLastError = true)]
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public static extern unsafe bool WriteProcessMemory(
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IntPtr hProcess,
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@@ -40,9 +32,6 @@ namespace Prospect.Launcher.Invoke
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out IntPtr lpNumberOfBytesWritten
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);
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[DllImport("kernel32.dll", SetLastError = true)]
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public static extern bool VirtualProtectEx(IntPtr hProcess, IntPtr lpAddress, int dwSize, uint flNewProtect, out uint lpflOldProtect);
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[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
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public static extern IntPtr GetModuleHandle(string lpModuleName);
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@@ -1,19 +0,0 @@
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using System;
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using System.Runtime.InteropServices;
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using System.Text;
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using Prospect.Launcher.Invoke.Structs;
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namespace Prospect.Launcher.Invoke
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{
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public class PSAPI
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{
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[DllImport("psapi.dll", CallingConvention = CallingConvention.StdCall, SetLastError = true)]
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public static extern int EnumProcessModules(IntPtr hProcess, [Out] IntPtr lphModule, uint cb, out uint lpcbNeeded);
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[DllImport("psapi.dll", CallingConvention = CallingConvention.StdCall, SetLastError = true)]
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public static extern bool GetModuleInformation(IntPtr hProcess, IntPtr hModule, out ModuleInfo lpModInfo, int cb);
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[DllImport("psapi.dll")]
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public static extern uint GetModuleFileNameEx(IntPtr hProcess, IntPtr hModule, [Out] StringBuilder lpBaseName, [In] [MarshalAs(UnmanagedType.U4)] int nSize);
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}
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}
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@@ -1,13 +0,0 @@
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using System;
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using System.Runtime.InteropServices;
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namespace Prospect.Launcher.Invoke.Structs
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{
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[StructLayout(LayoutKind.Sequential)]
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public struct ModuleInfo
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{
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public IntPtr lpBaseOfDll;
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public uint SizeOfImage;
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public IntPtr EntryPoint;
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}
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}
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@@ -1,133 +0,0 @@
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using System;
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using System.Buffers.Binary;
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using System.IO;
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using System.Runtime.InteropServices;
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using System.Text;
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using Prospect.Launcher.Invoke;
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using Prospect.Launcher.Invoke.Structs;
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namespace Prospect.Launcher
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{
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public class MemoryHelper
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{
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private readonly IntPtr _handle;
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private readonly IntPtr _baseAddress;
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private MemoryHelper(IntPtr handle, IntPtr baseAddress)
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{
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_handle = handle;
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_baseAddress = baseAddress;
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}
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public void WriteU32(int offset, uint value)
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{
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Span<byte> data = stackalloc byte[sizeof(int)];
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BinaryPrimitives.WriteUInt32LittleEndian(data, value);
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Write(offset, data);
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}
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public void WriteASCII(int offset, string value)
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{
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// + 1 for NULL character
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var dataCount = Encoding.ASCII.GetByteCount(value);
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Span<byte> data = stackalloc byte[dataCount + 1];
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Encoding.ASCII.GetBytes(value, data);
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Write(offset, data);
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}
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public void WriteUnicode(int offset, string value)
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{
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// + 2 for NULL character
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var dataCount = Encoding.Unicode.GetByteCount(value);
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Span<byte> data = stackalloc byte[dataCount + 2];
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Encoding.Unicode.GetBytes(value, data);
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Write(offset, data);
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}
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public unsafe void Write(int offset, ReadOnlySpan<byte> data)
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{
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Write(_baseAddress + offset, data);
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}
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public unsafe void Write(IntPtr addr, ReadOnlySpan<byte> data)
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{
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// Modify protection.
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if (!Kernel32.VirtualProtectEx(_handle, addr, data.Length, 0x40, out var oldProtect))
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{
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throw new Exception($"Unable to change protection {Marshal.GetLastWin32Error()}.");
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}
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fixed (byte* pData = data)
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{
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var write = Kernel32.WriteProcessMemory(_handle, addr, pData, data.Length, out _);
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// Restore protection.
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Kernel32.VirtualProtectEx(_handle, addr, data.Length, oldProtect, out _);
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if (!write)
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{
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throw new Exception($"Unable to write process memory {Marshal.GetLastWin32Error()}.");
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}
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}
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}
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public byte[] Read(int offset, int count)
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{
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var buffer = new byte[count];
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if (!Kernel32.ReadProcessMemory(_handle, _baseAddress + offset, buffer, count, out _))
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{
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throw new Exception("Unable to read process memory.");
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}
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return buffer;
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}
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public static MemoryHelper CreateForHandle(IntPtr handle, string gameBinary)
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{
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var gameBinaryName = Path.GetFileName(gameBinary);
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var hMods = new IntPtr[512];
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var hModsHandle = GCHandle.Alloc(hMods, GCHandleType.Pinned);
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try
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{
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var hModsPtr = hModsHandle.AddrOfPinnedObject();
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var hModsSize = (uint)(Marshal.SizeOf(typeof(IntPtr)) * (hMods.Length));
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if (PSAPI.EnumProcessModules(handle, hModsPtr, hModsSize, out var cbNeeded) == 1)
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{
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var moduleCount = (int)(cbNeeded / Marshal.SizeOf(typeof(IntPtr)));
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for (var i = 0; i < moduleCount; i++)
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{
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var stringBuilder = new StringBuilder(1024);
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if (PSAPI.GetModuleFileNameEx(handle, hMods[i], stringBuilder, stringBuilder.Capacity) == 0)
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{
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continue;
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}
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if (!gameBinaryName.Equals(Path.GetFileName(stringBuilder.ToString())))
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{
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continue;
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}
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if (!PSAPI.GetModuleInformation(handle, hMods[i], out var modInfo, Marshal.SizeOf<ModuleInfo>()))
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{
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continue;
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}
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return new MemoryHelper(handle, modInfo.lpBaseOfDll);
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}
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}
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}
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finally
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{
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hModsHandle.Free();
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}
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return null;
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}
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}
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}
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@@ -1,28 +0,0 @@
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namespace Prospect.Launcher
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{
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public static class Patches
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{
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private const string DefaultPlayFabUrl = ".playfabapi.com";
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public static bool ChangePlayFabUrl(MemoryHelper memory, string value)
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{
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if (value.Length > DefaultPlayFabUrl.Length)
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{
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return false;
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}
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var lengthWithNull = (uint)(value.Length + 1);
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// Modify wide string.
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memory.WriteU32(0xCA45A9 + 2, lengthWithNull * 2); // mov r8d, 20h
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memory.WriteUnicode(0x4431860, value); // text "UTF-16LE", '.playfabapi.com',0
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// Modify normal string.
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memory.WriteU32(0x605F44 + 1, lengthWithNull); // mov edx, 10h
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memory.WriteU32(0x605F86 + 2, lengthWithNull); // mov r9d, 10h
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memory.WriteASCII(0x4431588, value); // '.playfabapi.com',0
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return true;
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}
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}
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}
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@@ -23,7 +23,7 @@
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<Content Include="Prospect.Agent.dll">
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<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
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<CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
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<ExcludeFromSingleFile>false</ExcludeFromSingleFile>
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<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
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</Content>
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</ItemGroup>
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