mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-12-12 14:46:58 +08:00
201 lines
7.6 KiB
C++
201 lines
7.6 KiB
C++
#include "def_mono.hpp"
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#include "def_il2cpp.hpp"
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#include "monostringapis.h"
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namespace
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{
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void mscorlib_system_string_InternalSubString_hook_fun(hook_stack *stack, HookParam *hp, uintptr_t *data, uintptr_t *split, size_t *len)
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{
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uintptr_t offset = stack->ARG1;
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uintptr_t startIndex = stack->ARG2;
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uintptr_t length = stack->ARG3;
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MonoString *string = (MonoString *)offset;
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if (string == 0)
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return;
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*data = (uintptr_t)(startIndex + string->chars);
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if (wcslen((wchar_t *)*data) < length)
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return;
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*len = length * 2;
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}
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/** jichi 12/26/2014 Mono
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* Sample game: [141226] ハ<>レ<EFBFBD>めいと
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*/
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void SpecialHookMonoString(hook_stack *stack, HookParam *hp, uintptr_t *data, uintptr_t *split, size_t *len)
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{
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commonsolvemonostring(stack->ARG1, data, len);
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#ifndef _WIN64
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auto s = stack->ecx;
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for (int i = 0; i < 0x10; i++) // traverse pointers until a non-readable address is met
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if (s && !::IsBadReadPtr((LPCVOID)s, sizeof(DWORD)))
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s = *(DWORD *)s;
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else
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break;
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if (!s)
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s = hp->address;
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if (hp->type & USING_SPLIT)
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*split = s;
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#endif
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}
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}
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namespace
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{
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bool monodllhook(HMODULE module)
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{
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HookParam hp;
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const MonoFunction funcs[] = {MONO_FUNCTIONS_INITIALIZER};
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for (auto func : funcs)
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{
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if (FARPROC addr = GetProcAddress(module, func.functionName))
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{
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hp.address = (uintptr_t)addr;
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hp.type = USING_STRING | func.hookType;
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hp.filter_fun = all_ascii_Filter;
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hp.offset = func.textIndex * 4;
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hp.length_offset = func.lengthIndex * 4;
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hp.text_fun = (decltype(hp.text_fun))func.text_fun;
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ConsoleOutput("Mono: INSERT");
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NewHook(hp, func.functionName);
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}
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}
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return true;
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}
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}
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namespace monocommon
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{
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bool monodllhook(HMODULE module)
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{
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HookParam hp;
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const MonoFunction funcs[] = {MONO_FUNCTIONS_INITIALIZER};
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for (auto func : funcs)
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{
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if (FARPROC addr = GetProcAddress(module, func.functionName))
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{
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hp.address = (uintptr_t)addr;
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hp.type = USING_STRING | func.hookType;
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hp.filter_fun = all_ascii_Filter;
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hp.offset = func.textIndex * 4;
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hp.length_offset = func.lengthIndex * 4;
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hp.text_fun = (decltype(hp.text_fun))func.text_fun;
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NewHook(hp, func.functionName);
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}
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}
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return true;
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}
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struct functioninfo
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{
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const char *assemblyName;
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const char *namespaze;
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const char *klassName;
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const char *name;
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int argsCount;
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int argidx;
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void *text_fun = nullptr;
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bool Embed = false;
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bool isstring = true;
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std::string hookname()
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{
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char tmp[1024];
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sprintf(tmp, "%s:%s", klassName, name);
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return tmp;
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}
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std::string info()
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{
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char tmp[1024];
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sprintf(tmp, "%s:%s:%s:%s:%d", assemblyName, namespaze, klassName, name, argsCount);
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return tmp;
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}
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};
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bool NewHook_check(uintptr_t addr, functioninfo &hook)
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{
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HookParam hp;
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hp.address = addr;
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hp.argidx = hook.argidx;
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hp.text_fun = (decltype(hp.text_fun))hook.text_fun;
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if (hook.isstring)
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{
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hp.type = USING_STRING | CODEC_UTF16 | FULL_STRING;
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if (!hp.text_fun)
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hp.type |= SPECIAL_JIT_STRING;
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if (hook.Embed)
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hp.type |= EMBED_ABLE | EMBED_BEFORE_SIMPLE;
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}
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else
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{
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hp.type = USING_CHAR | CODEC_UTF16;
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}
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hp.jittype = JITTYPE::UNITY;
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strcpy(hp.unityfunctioninfo, hook.info().c_str());
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auto succ = NewHook(hp, hook.hookname().c_str());
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#ifdef _WIN64
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if (!succ)
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{
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hp.type |= BREAK_POINT;
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succ |= NewHook(hp, hook.hookname().c_str());
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}
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#endif
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return succ;
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}
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std::vector<functioninfo> commonhooks{
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{"mscorlib", "System", "String", "ToCharArray", 0, 1},
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{"mscorlib", "System", "String", "Replace", 2, 1},
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//{"mscorlib","System","String","ToString",0,1},
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// 虽然可能会有少量误伤，但这个乱码太多了，而且不知道原因，为了大多数更好，还是删了吧。
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// 一定要用的话，用特殊码：HMF1@mscorlib:System:String:ToString:0:JIT:UNITY
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{"mscorlib", "System", "String", "IndexOf", 1, 1},
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{"mscorlib", "System", "String", "Substring", 2, 1, mscorlib_system_string_InternalSubString_hook_fun}, // 这个如果不加截断，对于部分游戏，会导致host.output内存占用爆炸多，直接爆内存。可能会影响部分游戏，待测试。
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{"mscorlib", "System", "String", "op_Inequality", 2, 1},
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{"mscorlib", "System", "String", "InternalSubString", 2, 1, mscorlib_system_string_InternalSubString_hook_fun},
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{"Unity.TextMeshPro", "TMPro", "TMP_Text", "set_text", 1, 2, nullptr, true},
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{"Unity.TextMeshPro", "TMPro", "TextMeshPro", "set_text", 1, 2, nullptr, true},
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{"Unity.TextMeshPro", "TMPro", "TextMeshProUGUI", "SetText", 2, 2, nullptr, true},
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{"UnityEngine.UI", "UnityEngine.UI", "Text", "set_text", 1, 2, nullptr, true},
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{"UnityEngine.UIElementsModule", "UnityEngine.UIElements", "TextElement", "set_text", 1, 2, nullptr, true},
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{"UnityEngine.UIElementsModule", "UnityEngine.UIElements", "TextField", "set_value", 1, 2, nullptr, true},
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{"UnityEngine.TextRenderingModule", "UnityEngine", "GUIText", "set_text", 1, 2, nullptr, true},
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{"UnityEngine.TextRenderingModule", "UnityEngine", "TextMesh", "set_text", 1, 2, nullptr, true},
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{"UGUI", "", "UILabel", "set_text", 1, 2, nullptr, true},
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};
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std::vector<functioninfo> extrahooks{
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// https://vndb.org/r37234 && https://vndb.org/r37235
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// Higurashi When They Cry Hou - Ch.2 Watanagashi && Higurashi When They Cry Hou - Ch.3 Tatarigoroshi
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{"Assembly-CSharp", "Assets.Scripts.Core.TextWindow", "TextController", "SetText", 4, 3, nullptr, true},
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// 逆転裁判123 成歩堂セレクション
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{"Assembly-CSharp", "", "MessageText", "Append", 1, 2, nullptr, false, false},
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};
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bool hook_mono_il2cpp()
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{
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for (const wchar_t *monoName : {L"mono.dll", L"mono-2.0-bdwgc.dll", L"GameAssembly.dll"})
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if (HMODULE module = GetModuleHandleW(monoName))
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{
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// bool b2=monodllhook(module);
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il2cppfunctions::init(module);
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monofunctions::init(module);
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bool succ = false;
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for (auto hook : commonhooks)
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{
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auto addr = tryfindmonoil2cpp(hook.assemblyName, hook.namespaze, hook.klassName, hook.name, hook.argsCount);
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if (!addr)
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continue;
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succ |= NewHook_check(addr, hook);
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}
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for (auto hook : extrahooks)
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{
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auto addr = tryfindmonoil2cpp(hook.assemblyName, hook.namespaze, hook.klassName, hook.name, hook.argsCount, true);
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if (!addr)
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continue;
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succ |= NewHook_check(addr, hook);
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}
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if (succ)
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return true;
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}
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return false;
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}
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} |