LunaHook-mirror/LunaHook/engine64/LightVN.cpp
2024-06-17 00:31:31 +08:00

183 lines
5.7 KiB
C++

#include"LightVN.h"
namespace{
bool _1() {
//void __fastcall sub_1404B7960(void **Src)
//HQ-1C*0@4B7960:LightApp.exe
const BYTE BYTES[] = {
0x90,
XX4,
XX4,
0x48,0x8b,0xce,
0xe8,XX4,
0x90,
0x48,0x8b,XX2,
0x48,0x83,0xfa,0x08,
0x72,0x36,
0x48,0x8D,0x14,0x55,0x02,0x00,0x00,0x00,
0x48,0x8b,XX2,
0x48,0x8b,0xc1,
0x48,0x81,0xFA,0x00,0x10,0x00,0x00,
0x72,0x19,
0x48,0x83,0xC2,0x27,
0x48,0x8b,XX2,
0x48,0x2b,0xc1,
0x48,0x83,0xC0,0xF8,
0x48,0x83,0xF8,0x1F ,
0x0f,0x87,XX4,
0xe8,XX4
};
auto suc=false;
auto addrs = Util::SearchMemory(BYTES, sizeof(BYTES), PAGE_EXECUTE, processStartAddress, processStopAddress);
for (auto addr : addrs) {
ConsoleOutput("LightVN %p", addr);
const BYTE aligned[] = { 0xCC,0xCC,0xCC,0xCC };
addr = reverseFindBytes(aligned, sizeof(aligned), addr - 0x100, addr);
if (addr == 0)continue;
addr += 4;
ConsoleOutput("LightVN %p", addr);
HookParam hp;
hp.address = addr;
hp.type = CODEC_UTF16 | USING_STRING|DATA_INDIRECT;
hp.index = 0;
hp.offset=get_reg(regs::rcx);
hp.filter_fun = [](void* data, size_t* len, HookParam* hp) {
std::wstring s((wchar_t*)data, *len / 2);
if (s.substr(s.size() - 2, 2) == L"\\w")
*len -= 4;
return true;
};
suc|=NewHook(hp, "LightVN");
}
return suc;
}
bool _2(){
//https://vndb.org/r86006
//ファーストキス(体験版)
//https://vndb.org/r85992
//フサの大正女中ぐらし
BYTE sig[]={
0x48,XX,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,
0x48,0x3B,0xC3,
0x76,XX,
0x48,XX,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,
};
auto addr=MemDbg::findBytes(sig, sizeof(sig), processStartAddress, processStopAddress);
if(addr==0)return 0;
addr=MemDbg::findEnclosingAlignedFunction(addr);
if(addr==0)return 0;
HookParam hp;
hp.address = addr;
hp.type = CODEC_UTF16|USING_STRING;
hp.offset =get_stack(6);
hp.filter_fun = [](void* data, size_t* len, HookParam* hp)
{
if(all_ascii((wchar_t*)data,*len))return false;
//高架下に広がる[瀟洒]<しょうしゃ>な店内には、あたしたちのような学生の他に、
auto str=std::wstring(reinterpret_cast<LPWSTR>(data),*len/2);
auto filterpath={
L".rpy",L".rpa",L".py",L".pyc",L".txt",
L".png",L".jpg",L".bmp",
L".mp3",L".ogg",
L".webm",L".mp4",
L".otf",L".ttf",L"Data/"
};
for(auto _ :filterpath)
if(str.find(_)!=str.npos)
return false;
str = std::regex_replace(str, std::wregex(L"\\[(.*?)\\]<(.*?)>"), L"$1");
write_string_overwrite(data,len,str);
return true;
};
return NewHook(hp, "LightVN2");
}
}
namespace{
bool lightvnparsestring(){
BYTE sig[]={
0x4c,0x8b,0x47,0x10,
0x48,0x83,0x7f,0x18,0x08,
0x72,0x03,
0x48,0x8b,0x3f,
0x48,0x8b,0xd7,
0x48,0x8b,0xcb,
0xe8
};
auto addr=MemDbg::findBytes(sig, sizeof(sig), processStartAddress, processStopAddress);
if(addr==0)return 0;
addr=MemDbg::findEnclosingAlignedFunction_strict(addr);
if(addr==0)return 0;
HookParam hp;
hp.address = addr;
hp.type = CODEC_UTF16|USING_STRING|NO_CONTEXT;
//包含太多短句,所以无法内嵌
hp.text_fun=[](hook_stack* stack, HookParam*, uintptr_t* data, uintptr_t* split, size_t* len)
{
*data=(uintptr_t)((TextUnionW*)stack->rdx)->getText();
*len=((TextUnionW*)stack->rdx)->size*2;
std::wstring str=(wchar_t*)*data;
if(startWith(str,L"\\n")&&endWith(str,L"\\n"))
{
*split=1;
}
};
hp.filter_fun=[](LPVOID data, size_t *size, HookParam *)
{
auto str=std::wstring((wchar_t*)data,*size/2);
std::wregex pattern(L"-{2,}");
str = std::regex_replace(str, pattern, L"");
return write_string_overwrite(data,size,str);
};
hp.newlineseperator=L"\\n";
return NewHook(hp, "Light.VN.16");
}
bool xreflightvnparsestring(){
//ver16 是上面的xref
//ver12 找不到上面的函数
auto checkstrings={
L"backlog voice already exists at line: {}",
L"attempting to log to backlog when backlog showing. likely you faded it out."
};
auto succ=false;
for(auto str :checkstrings){
auto straddr=MemDbg::findBytes(str,wcslen(str)*2,processStartAddress,processStopAddress);
if(straddr==0)continue;
// 140CADC30
// 48 8D 0D C5 94 AB 00
// 1401F4764
BYTE lea[]={0x48,0x8d,XX};
for(auto leaaddr:Util::SearchMemory(lea,sizeof(lea),PAGE_EXECUTE,processStartAddress,processStopAddress)){
auto refaddr=(*(DWORD*)(leaaddr+3))+leaaddr+7;
if(refaddr!=straddr)continue;
auto funcaddr=MemDbg::findEnclosingAlignedFunction_strict(leaaddr,0x2000);
if(funcaddr==0)continue;
HookParam hp;
hp.address = funcaddr;
hp.type = CODEC_UTF16|USING_STRING|NO_CONTEXT;
hp.text_fun=[](hook_stack* stack, HookParam*, uintptr_t* data, uintptr_t* split, size_t* len)
{
//wstring=TextUnionW for msvc c++17
*data=(uintptr_t)((TextUnionW*)stack->rdx)->getText();
*len=((TextUnionW*)stack->rdx)->size*2;
};
succ|= NewHook(hp, "Light.VN.12");
}
}
return succ;
}
}
bool LightVN::attach_function() {
bool ok=_1();
ok=_2()||ok;
ok|=lightvnparsestring();
ok|=xreflightvnparsestring();
return ok;
}