mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-11-27 07:44:02 +08:00
456 lines
9.4 KiB
C++
456 lines
9.4 KiB
C++
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namespace
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{
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std::optional<HookParam> ParseRCode(std::wstring RCode)
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{
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RCode.erase(0, 1);
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std::wsmatch match;
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HookParam hp;
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hp.type |= DIRECT_READ;
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// {S|Q|V|M}
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switch (RCode[0])
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{
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case L'S':
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break;
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case L'Q':
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hp.type |= CODEC_UTF16;
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break;
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case L'U':
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hp.type |= CODEC_UTF32;
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break;
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case L'V':
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hp.type |= CODEC_UTF8;
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break;
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default:
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return {};
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}
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RCode.erase(0, 1);
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// [codepage#]
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if (std::regex_search(RCode, match, std::wregex(L"^([0-9]+)#")))
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{
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hp.codepage = std::stoi(match[1]);
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RCode.erase(0, match[0].length());
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}
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// @addr
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if (!std::regex_match(RCode, match, std::wregex(L"@([[:xdigit:]]+)")))
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return {};
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hp.address = std::stoull(match[1], nullptr, 16);
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return hp;
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}
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std::optional<HookParam> ParseHCode(std::wstring HCode, std::optional<HookParam> hpo = {})
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{
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auto hp = hpo ? hpo.value() : HookParam{};
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if (HCode[0] == 'L')
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{
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hp.type |= HOOK_RETURN;
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HCode.erase(0, 1);
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}
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switch (HCode[0])
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{
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case L'B':
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hp.type |= BREAK_POINT;
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case L'H':
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break;
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default:
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return {};
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}
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HCode.erase(0, 1);
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if (endWith(HCode, L":JIT:YUZU"))
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hp.jittype = JITTYPE::YUZU;
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else if (endWith(HCode, L":JIT:PPSSPP"))
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hp.jittype = JITTYPE::PPSSPP;
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else if (endWith(HCode, L":JIT:VITA3K"))
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hp.jittype = JITTYPE::VITA3K;
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else if (endWith(HCode, L":JIT:RPCS3"))
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hp.jittype = JITTYPE::RPCS3;
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else if (endWith(HCode, L":JIT:UNITY"))
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hp.jittype = JITTYPE::UNITY;
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// {A|B|W|H|S|Q|V|M}
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switch (HCode[0])
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{
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case L'A':
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hp.type |= CODEC_ANSI_BE;
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break;
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case L'B':
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// ANSI LE
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break;
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case L'W':
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hp.type |= CODEC_UTF16;
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break;
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case L'I':
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hp.type |= CODEC_UTF32;
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break;
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case L'S':
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hp.type |= USING_STRING;
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break;
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case L'Q':
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hp.type |= USING_STRING | CODEC_UTF16;
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break;
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case L'M':
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hp.type |= SPECIAL_JIT_STRING | USING_STRING | CODEC_UTF16;
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break;
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case L'U':
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hp.type |= USING_STRING | CODEC_UTF32;
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break;
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case L'V':
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hp.type |= USING_STRING | CODEC_UTF8;
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break;
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default:
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return {};
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}
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HCode.erase(0, 1);
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if (hp.type & USING_STRING)
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{
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if (HCode[0] == L'F')
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{
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hp.type |= FULL_STRING;
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HCode.erase(0, 1);
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}
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}
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// [N]
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if (HCode[0] == L'N')
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{
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hp.type |= NO_CONTEXT;
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HCode.erase(0, 1);
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}
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std::wsmatch match;
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// [codepage#]
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if (std::regex_search(HCode, match, std::wregex(L"^([0-9]+)#")))
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{
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hp.codepage = std::stoi(match[1]);
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HCode.erase(0, match[0].length());
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}
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// [padding+]
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if (std::regex_search(HCode, match, std::wregex(L"^([[:xdigit:]]+)\\+")))
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{
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hp.padding = std::stoull(match[1], nullptr, 16);
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HCode.erase(0, match[0].length());
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}
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auto ConsumeHexInt = [&HCode]
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{
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size_t size = 0;
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int value = 0;
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try
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{
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value = std::stoi(HCode, &size, 16);
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}
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catch (std::invalid_argument)
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{
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}
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HCode.erase(0, size);
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return value;
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};
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// data_offset
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hp.offset = ConsumeHexInt();
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// [*deref_offset1]
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if (HCode[0] == L'*')
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{
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hp.type |= DATA_INDIRECT;
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HCode.erase(0, 1);
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hp.index = ConsumeHexInt();
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}
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// [:split_offset[*deref_offset2]]
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if (HCode[0] == L':')
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{
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hp.type |= USING_SPLIT;
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HCode.erase(0, 1);
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hp.split = ConsumeHexInt();
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if (HCode[0] == L'*')
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{
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hp.type |= SPLIT_INDIRECT;
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HCode.erase(0, 1);
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hp.split_index = ConsumeHexInt();
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}
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}
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if (hp.jittype == JITTYPE::UNITY)
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{
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if (HCode[0] != L'@')
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return {};
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HCode.erase(0, 1);
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HCode = HCode.substr(0, HCode.size() - wcslen(L":JIT:UNITY"));
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hp.argidx = hp.offset;
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hp.offset = 0;
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hp.address = 0;
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hp.type &= ~MODULE_OFFSET;
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hp.type &= ~FUNCTION_OFFSET;
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strcpy(hp.function, "");
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wcscpy(hp.module, L"");
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strcpy(hp.unityfunctioninfo, wcasta(HCode).c_str());
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}
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else
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{
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// @addr[:module[:func]]
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if (!std::regex_match(HCode, match, std::wregex(L"^@([[:xdigit:]]+)(:.+?)?(:.+)?")))
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return {};
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hp.address = std::stoull(match[1], nullptr, 16);
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if (match[2].matched)
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{
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hp.type |= MODULE_OFFSET;
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wcsncpy_s(hp.module, match[2].str().erase(0, 1).c_str(), MAX_MODULE_SIZE - 1);
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}
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if (match[3].matched)
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{
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hp.type |= FUNCTION_OFFSET;
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std::wstring func = match[3];
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strncpy_s(hp.function, std::string(func.begin(), func.end()).erase(0, 1).c_str(), MAX_MODULE_SIZE - 1);
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}
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// ITH has registers offset by 4 vs AGTH: need this to correct
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if (hp.offset < 0)
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hp.offset -= 4;
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if (hp.split < 0)
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hp.split -= 4;
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if (hp.jittype != JITTYPE::PC)
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{
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hp.emu_addr = hp.address;
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hp.argidx = hp.offset;
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hp.offset = 0;
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hp.address = 0;
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hp.type &= ~MODULE_OFFSET;
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hp.type &= ~FUNCTION_OFFSET;
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strcpy(hp.function, "");
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wcscpy(hp.module, L"");
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}
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}
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return hp;
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}
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std::optional<HookParam> ParseECode(std::wstring code)
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{
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code.erase(0, 1);
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HookParam hp;
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hp.type |= EMBED_ABLE;
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if (code[0] == L'D')
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{
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hp.type |= EMBED_DYNA_SJIS;
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code.erase(0, 1);
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}
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if (code[0] == L'S')
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{
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code.erase(0, 1);
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hp.type |= EMBED_BEFORE_SIMPLE;
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if (code[0] == L'N')
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hp.type |= EMBED_AFTER_NEW;
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else if (code[0] == L'O')
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hp.type |= EMBED_AFTER_OVERWRITE;
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else
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return ParseHCode(code, hp);
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code.erase(0, 1);
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}
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return ParseHCode(code, hp);
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}
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std::wstring HexString(int64_t num)
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{
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if (num < 0)
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return FormatString(L"-%I64X", -num);
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return FormatString(L"%I64X", num);
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}
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std::wstring GenerateRCode(HookParam hp)
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{
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std::wstring RCode = L"R";
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if (hp.type & CODEC_UTF16)
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RCode += L'Q';
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else if (hp.type & CODEC_UTF32)
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RCode += L'U';
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else if (hp.type & CODEC_UTF8)
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RCode += L'V';
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else
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{
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RCode += L'S';
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if (hp.codepage != 0)
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RCode += std::to_wstring(hp.codepage) + L'#';
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}
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RCode += L'@' + HexString(hp.address);
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return RCode;
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}
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std::wstring GenerateHCode(HookParam hp, DWORD processId)
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{
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std::wstring HCode;
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if (hp.type & EMBED_ABLE)
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{
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HCode += L"E";
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if (hp.hook_before || hp.hook_after)
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HCode += L'X';
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else
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{
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if (hp.type & EMBED_DYNA_SJIS)
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HCode += L"D";
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if (hp.type & EMBED_BEFORE_SIMPLE)
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HCode += L"S";
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if (hp.type & EMBED_AFTER_NEW)
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HCode += L"N";
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else if (hp.type & EMBED_AFTER_OVERWRITE)
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HCode += L"O";
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}
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}
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if (hp.type & BREAK_POINT)
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HCode += L"B";
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else
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HCode += L"H";
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if (hp.type & USING_STRING)
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{
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if (hp.type & SPECIAL_JIT_STRING)
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HCode += L'M';
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else if (hp.type & CODEC_UTF16)
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HCode += L'Q';
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else if (hp.type & CODEC_UTF8)
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HCode += L'V';
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else if (hp.type & CODEC_UTF32)
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HCode += L'U';
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else
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HCode += L'S';
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}
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else
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{
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if (hp.type & CODEC_UTF16)
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HCode += L'W';
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else if (hp.type & CODEC_UTF32)
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HCode += L'I';
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else if (hp.type & CODEC_ANSI_BE)
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HCode += L'A';
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else
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HCode += L'B';
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}
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if (hp.text_fun || hp.filter_fun)
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HCode += L'X';
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if (hp.type & FULL_STRING)
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HCode += L'F';
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if (hp.type & NO_CONTEXT)
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HCode += L'N';
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if (hp.codepage != 0 && !(hp.type & CODEC_UTF8) && !(hp.type & CODEC_UTF16) && !(hp.type & CODEC_UTF32))
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HCode += std::to_wstring(hp.codepage) + L'#';
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if (hp.padding)
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HCode += HexString(hp.padding) + L'+';
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if (hp.offset < 0)
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hp.offset += 4;
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if (hp.split < 0)
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hp.split += 4;
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if (hp.jittype == JITTYPE::PC)
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{
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HCode += HexString(hp.offset);
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}
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else
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{
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HCode += HexString(hp.argidx);
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}
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if (hp.type & DATA_INDIRECT)
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HCode += L'*' + HexString(hp.index);
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if (hp.type & USING_SPLIT)
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HCode += L':' + HexString(hp.split);
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if (hp.type & SPLIT_INDIRECT)
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HCode += L'*' + HexString(hp.split_index);
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// Attempt to make the address relative
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if (hp.jittype == JITTYPE::PC)
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{
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if (processId && !(hp.type & MODULE_OFFSET))
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if (AutoHandle<> process = OpenProcess(PROCESS_VM_READ | PROCESS_QUERY_INFORMATION, FALSE, processId))
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if (MEMORY_BASIC_INFORMATION info = {}; VirtualQueryEx(process, (LPCVOID)hp.address, &info, sizeof(info)))
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if (auto moduleName = getModuleFilename(processId, (HMODULE)info.AllocationBase))
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{
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hp.type |= MODULE_OFFSET;
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hp.address -= (uint64_t)info.AllocationBase;
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wcsncpy_s(hp.module, moduleName->c_str() + moduleName->rfind(L'\\') + 1, MAX_MODULE_SIZE - 1);
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}
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HCode += L'@' + HexString(hp.address);
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if (hp.type & MODULE_OFFSET)
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HCode += L':' + std::wstring(hp.module);
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if (hp.type & FUNCTION_OFFSET)
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HCode += L':' + StringToWideString(hp.function);
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}
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else
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{
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if (hp.jittype == JITTYPE::UNITY)
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{
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HCode += L'@';
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HCode += acastw(hp.unityfunctioninfo);
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HCode += L":JIT:UNITY";
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}
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else
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{
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HCode += L'@' + HexString(hp.emu_addr);
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switch (hp.jittype)
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{
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case JITTYPE::YUZU:
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HCode += L":JIT:YUZU";
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break;
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case JITTYPE::PPSSPP:
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HCode += L":JIT:PPSSPP";
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break;
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case JITTYPE::VITA3K:
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HCode += L":JIT:VITA3K";
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break;
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case JITTYPE::RPCS3:
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HCode += L":JIT:RPCS3";
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break;
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}
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}
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}
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return HCode;
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}
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}
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namespace HookCode
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{
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std::optional<HookParam> Parse(std::wstring code)
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{
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if (code[0] == L'/')
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code.erase(0, 1);
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code.erase(std::find(code.begin(), code.end(), L'/'), code.end()); // legacy/AGTH compatibility
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Trim(code);
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if (code[0] == L'R')
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return ParseRCode(code);
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else if (code[0] == L'E')
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return ParseECode(code);
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else
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return ParseHCode(code);
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}
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std::wstring Generate(HookParam hp, DWORD processId)
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{
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std::wstring HCode = L"";
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return HCode += (hp.type & DIRECT_READ ? GenerateRCode(hp) : GenerateHCode(hp, processId));
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}
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}
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