mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-11-23 22:05:36 +08:00
260 lines
7.7 KiB
C++
260 lines
7.7 KiB
C++
#include"embed_util.h"
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#include"MinHook.h"
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#include"stringutils.h"
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#include"main.h"
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#include"detours.h"
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#include"hijackfuns.h"
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#include"winevent.hpp"
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#include"defs.h"
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#include"stringfilters.h"
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DynamicShiftJISCodec *dynamiccodec=new DynamicShiftJISCodec(932);
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void cast_back(const HookParam& hp,void*data ,size_t *len,const std::wstring& trans,bool normal){
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if((hp.type&EMBED_CODEC_UTF16)||(hp.type&CODEC_UTF16)){//renpy
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wcscpy((wchar_t*)data,trans.c_str());
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*len=trans.size()*2;
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}
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else{
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std::string astr;
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if(hp.type&EMBED_DYNA_SJIS&&!normal){
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astr=dynamiccodec->encodeSTD(trans,0);
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}
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else{
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astr=WideStringToString(trans,hp.codepage?hp.codepage:((hp.type&CODEC_UTF8)?CP_UTF8:embedsharedmem->codepage));
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}
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strcpy((char*)data,astr.c_str());
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*len=astr.size();
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}
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}
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struct FunctionInfo {
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const char *name; // for debugging purpose
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uintptr_t *oldFunction,
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newFunction;
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bool attached ;
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uintptr_t addr;
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explicit FunctionInfo(const uintptr_t _addr=0,const char *name = "", uintptr_t *oldFunction = nullptr, uintptr_t newFunction = 0,
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bool attached = false )
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: name(name), oldFunction(oldFunction), newFunction(newFunction)
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, attached(attached),addr(_addr)
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{}
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};
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std::unordered_map<uintptr_t, FunctionInfo> funcs; // attached functions
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std::vector<uintptr_t > replacedfuns; // attached functions
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bool _1f()
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{
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#define ADD_FUN(_f) funcs[F_##_f] = FunctionInfo((uintptr_t)_f,#_f, (uintptr_t *)&Hijack::old##_f, (uintptr_t)Hijack::new##_f);
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ADD_FUN(CreateFontA)
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ADD_FUN(CreateFontW)
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ADD_FUN(CreateFontIndirectA)
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ADD_FUN(CreateFontIndirectW)
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ADD_FUN(GetGlyphOutlineA)
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ADD_FUN(GetGlyphOutlineW)
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ADD_FUN(GetTextExtentPoint32A)
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ADD_FUN(GetTextExtentPoint32W)
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ADD_FUN(GetTextExtentExPointA)
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ADD_FUN(GetTextExtentExPointW)
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//ADD_FUN(GetCharABCWidthsA)
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//ADD_FUN(GetCharABCWidthsW)
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ADD_FUN(TextOutA)
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ADD_FUN(TextOutW)
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ADD_FUN(ExtTextOutA)
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ADD_FUN(ExtTextOutW)
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ADD_FUN(DrawTextA)
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ADD_FUN(DrawTextW)
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ADD_FUN(DrawTextExA)
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ADD_FUN(DrawTextExW)
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ADD_FUN(CharNextA)
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//ADD_FUN(CharNextW)
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//ADD_FUN(CharNextExA)
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//ADD_FUN(CharNextExW)
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ADD_FUN(CharPrevA)
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//ADD_FUN(CharPrevW)
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ADD_FUN(MultiByteToWideChar)
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ADD_FUN(WideCharToMultiByte)
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#undef ADD_FUN
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return 0;
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}
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extern bool DetourAttachedUserAddr;
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extern bool hostconnected;
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bool _1=_1f();
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void ReplaceFunction(PVOID* oldf,PVOID newf){
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RemoveHook((uintptr_t)*oldf);
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DetourTransactionBegin();
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DetourUpdateThread(GetCurrentThread());
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DetourAttach((PVOID*)oldf, (PVOID)newf);
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DetourTransactionCommit();
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}
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void attachFunction(uintptr_t _hook_font_flag)
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{
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for(auto & _func:funcs){
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if(_func.first&_hook_font_flag){
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if(_func.second.attached)continue;
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_func.second.attached = true;
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*_func.second.oldFunction=_func.second.addr;
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replacedfuns.push_back(_func.first);
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ReplaceFunction((PVOID*)_func.second.oldFunction,(PVOID)_func.second.newFunction);
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}
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}
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}
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void detachall( )
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{
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DetourTransactionBegin();
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DetourUpdateThread(GetCurrentThread());
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for(auto _flag:replacedfuns){
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auto info=funcs.at(_flag);
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DetourDetach((PVOID*)info.oldFunction, (PVOID)info.newFunction);
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}
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DetourTransactionCommit();
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}
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void solvefont(HookParam hp){
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if(hp.hook_font){
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attachFunction(hp.hook_font);
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}
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if(hp.hook_font&F_MultiByteToWideChar)
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disable_mbwc=true;
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if(hp.hook_font&F_WideCharToMultiByte)
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disable_wcmb=true;
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if (auto current_patch_fun = patch_fun.exchange(nullptr)){
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current_patch_fun();
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DetourAttachedUserAddr=true;
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}
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}
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static std::wstring alwaysInsertSpacesSTD(const std::wstring& text)
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{
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std::wstring ret;
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for(auto c: text) {
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ret.push_back(c);
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if (c >= 32) // ignore non-printable characters
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ret.push_back(L' '); // or insert \u3000 if needed
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}
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return ret;
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}
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bool charEncodableSTD(const wchar_t& ch, UINT codepage)
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{
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if (ch <= 127) // ignore ascii characters
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return true;
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std::wstring s ;
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s.push_back(ch);
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return StringToWideString(WideStringToString(s, codepage), codepage).value() == s;
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}
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static std::wstring insertSpacesAfterUnencodableSTD(const std::wstring& text, HookParam hp)
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{
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std::wstring ret;
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for(const wchar_t & c: text) {
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ret.push_back(c);
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if (!charEncodableSTD(c, hp.codepage?hp.codepage:embedsharedmem->codepage))
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ret.push_back(L' ');
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}
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return ret;
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}
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std::wstring adjustSpacesSTD(const std::wstring& text,HookParam hp)
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{
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switch (embedsharedmem->spaceadjustpolicy)
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{
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case 0: return text;
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case 1:return alwaysInsertSpacesSTD(text);
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case 2:return insertSpacesAfterUnencodableSTD(text, hp);
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default:return text;
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}
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}
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bool isPauseKeyPressed()
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{
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return WinKey::isKeyControlPressed()
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|| WinKey::isKeyShiftPressed() && !WinKey::isKeyReturnPressed();
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}
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inline UINT64 djb2_n2(const unsigned char * str, size_t len, UINT64 hash = 5381)
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{
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int i=0;
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while (len--){
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hash = ((hash << 5) + hash) + (*str++); // hash * 33 + c
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}
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return hash;
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}
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std::unordered_map<UINT64,std::wstring>translatecache;
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bool check_is_thread_selected(const ThreadParam& tp){
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for(int i=0;i<10;i++)
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if(embedsharedmem->use[i])
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if((embedsharedmem->addr[i]==tp.addr)&&(embedsharedmem->ctx1[i]==tp.ctx)&&(embedsharedmem->ctx2[i]==tp.ctx2))
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return true;
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return false;
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}
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bool check_embed_able(const ThreadParam& tp){
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return hostconnected&&check_is_thread_selected(tp)&&(isPauseKeyPressed()==false);
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}
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bool waitforevent(UINT32 timems,const ThreadParam& tp,const std::wstring &origin){
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char eventname[1000];
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sprintf(eventname,LUNA_EMBED_notify_event,GetCurrentProcessId(),djb2_n2((const unsigned char*)(origin.c_str()),origin.size()*2));
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auto event=win_event(eventname);
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while(timems){
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if(check_embed_able(tp)==false)return false;
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auto sleepstep=min(100,timems);
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if(event.wait(sleepstep))return true;
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timems-=sleepstep;
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}
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return false;
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}
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void TextHook::parsenewlineseperator(void*data ,size_t*len)
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{
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if(!(hp.type&EMBED_ABLE && hp.newlineseperator))return;
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if (hp.type & CODEC_UTF16)
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{
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StringReplacer((wchar_t*)data,len,hp.newlineseperator,wcslen(hp.newlineseperator),L"\n",1);
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}
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else if(hp.type&CODEC_UTF32) return;
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else
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{
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//ansi/utf8，newlineseperator都是简单字符
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std::string newlineseperatorA;
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for(int i=0;i<wcslen(hp.newlineseperator);i++)newlineseperatorA+=(char)hp.newlineseperator[i];
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StringReplacer((char*)data,len,newlineseperatorA.c_str(),newlineseperatorA.size(),"\n",1);
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}
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}
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UINT64 texthash(void*data,size_t len)
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{
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UINT64 sum=0;
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auto u8data=(UINT8*)data;
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for(int i=0;i< len;i++){
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sum+=u8data[i];
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sum=sum<<1;
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}
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return sum;
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}
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bool checktranslatedok(void*data ,size_t len)
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{
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if(len>1000)return true;
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return(translatecache.find(texthash(data,len))!=translatecache.end());
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}
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bool TextHook::waitfornotify(TextOutput_T* buffer,void*data ,size_t*len,ThreadParam tp){
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std::wstring origin;
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if (auto t=commonparsestring(data,*len,&hp,embedsharedmem->codepage)) origin=t.value();
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else return false;
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std::wstring translate;
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auto hash=texthash(data,*len);
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if(translatecache.find(hash)!=translatecache.end()){
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translate=translatecache.at(hash);
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}
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else{
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if(waitforevent(embedsharedmem->waittime,tp,origin)==false)return false;
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translate=embedsharedmem->text;
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if((translate.size()==0)||(translate==origin))return false;
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translatecache.insert(std::make_pair(hash,translate));
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}
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if(hp.newlineseperator)strReplace(translate,L"\n",hp.newlineseperator);
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translate=adjustSpacesSTD(translate,hp);
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if(embedsharedmem->keeprawtext)translate=origin+L" "+translate;
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solvefont(hp);
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cast_back(hp,data,len,translate,false);
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return true;
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} |