BeamMP-Server/src/LuaAPI.cpp

504 lines
17 KiB
C++

#include "LuaAPI.h"
#include "Client.h"
#include "Common.h"
#include "TLuaEngine.h"
#include <nlohmann/json.hpp>
#define SOL_ALL_SAFETIES_ON 1
#include <sol/sol.hpp>
std::string LuaAPI::LuaToString(const sol::object Value, size_t Indent, bool QuoteStrings) {
if (Indent > 80) {
return "[[possible recursion, refusing to keep printing]]";
}
switch (Value.get_type()) {
case sol::type::userdata: {
std::stringstream ss;
ss << "[[userdata: " << Value.as<sol::userdata>().pointer() << "]]";
return ss.str();
}
case sol::type::thread: {
std::stringstream ss;
ss << "[[thread: " << Value.as<sol::thread>().pointer() << "]] {"
<< "\n";
for (size_t i = 0; i < Indent; ++i) {
ss << "\t";
}
ss << "status: " << std::to_string(int(Value.as<sol::thread>().status())) << "\n}";
return ss.str();
}
case sol::type::lightuserdata: {
std::stringstream ss;
ss << "[[lightuserdata: " << Value.as<sol::lightuserdata>().pointer() << "]]";
return ss.str();
}
case sol::type::string:
if (QuoteStrings) {
return "\"" + Value.as<std::string>() + "\"";
} else {
return Value.as<std::string>();
}
case sol::type::number: {
std::stringstream ss;
ss << Value.as<float>();
return ss.str();
}
case sol::type::lua_nil:
case sol::type::none:
return "<nil>";
case sol::type::boolean:
return Value.as<bool>() ? "true" : "false";
case sol::type::table: {
std::stringstream Result;
auto Table = Value.as<sol::table>();
Result << "[[table: " << Table.pointer() << "]]: {";
if (!Table.empty()) {
for (const auto& Entry : Table) {
Result << "\n";
for (size_t i = 0; i < Indent; ++i) {
Result << "\t";
}
Result << LuaToString(Entry.first, Indent + 1) << ": " << LuaToString(Entry.second, Indent + 1, true) << ",";
}
Result << "\n";
}
for (size_t i = 0; i < Indent - 1; ++i) {
Result << "\t";
}
Result << "}";
return Result.str();
}
case sol::type::function: {
std::stringstream ss;
ss << "[[function: " << Value.as<sol::function>().pointer() << "]]";
return ss.str();
}
default:
return "((unprintable type))";
}
}
std::string LuaAPI::MP::GetOSName() {
#if WIN32
return "Windows";
#elif __linux
return "Linux";
#else
return "Other";
#endif
}
std::tuple<int, int, int> LuaAPI::MP::GetServerVersion() {
return { Application::ServerVersion().major, Application::ServerVersion().minor, Application::ServerVersion().patch };
}
void LuaAPI::Print(sol::variadic_args Args) {
std::string ToPrint = "";
for (const auto& Arg : Args) {
ToPrint += LuaToString(static_cast<const sol::object>(Arg));
ToPrint += "\t";
}
luaprint(ToPrint);
}
static inline bool InternalTriggerClientEvent(int PlayerID, const std::string& EventName, const std::string& Data) {
std::string Packet = "E:" + EventName + ":" + Data;
if (PlayerID == -1)
LuaAPI::MP::Engine->Network().SendToAll(nullptr, Packet, true, true);
else {
auto MaybeClient = GetClient(LuaAPI::MP::Engine->Server(), PlayerID);
if (!MaybeClient || MaybeClient.value().expired()) {
beammp_lua_error("TriggerClientEvent invalid Player ID");
return false;
}
auto c = MaybeClient.value().lock();
if (!LuaAPI::MP::Engine->Network().Respond(*c, Packet, true)) {
beammp_lua_error("Respond failed");
return false;
}
}
return true;
}
bool LuaAPI::MP::TriggerClientEvent(int PlayerID, const std::string& EventName, const sol::object& DataObj) {
std::string Data = DataObj.as<std::string>();
return InternalTriggerClientEvent(PlayerID, EventName, Data);
}
void LuaAPI::MP::DropPlayer(int ID, std::optional<std::string> MaybeReason) {
auto MaybeClient = GetClient(Engine->Server(), ID);
if (!MaybeClient || MaybeClient.value().expired()) {
beammp_lua_error("Tried to drop client with id " + std::to_string(ID) + ", who doesn't exist");
return;
}
auto c = MaybeClient.value().lock();
LuaAPI::MP::Engine->Network().ClientKick(*c, MaybeReason.value_or("No reason"));
}
void LuaAPI::MP::SendChatMessage(int ID, const std::string& Message) {
std::string Packet = "C:Server: " + Message;
if (ID == -1) {
LogChatMessage("<Server> (to everyone) ", -1, Message);
Engine->Network().SendToAll(nullptr, Packet, true, true);
} else {
auto MaybeClient = GetClient(Engine->Server(), ID);
if (MaybeClient && !MaybeClient.value().expired()) {
auto c = MaybeClient.value().lock();
if (!c->IsSynced())
return;
LogChatMessage("<Server> (to \"" + c->GetName() + "\")", -1, Message);
Engine->Network().Respond(*c, Packet, true);
} else {
beammp_lua_error("SendChatMessage invalid argument [1] invalid ID");
}
}
}
void LuaAPI::MP::RemoveVehicle(int PID, int VID) {
auto MaybeClient = GetClient(Engine->Server(), PID);
if (!MaybeClient || MaybeClient.value().expired()) {
beammp_lua_error("RemoveVehicle invalid Player ID");
return;
}
auto c = MaybeClient.value().lock();
if (!c->GetCarData(VID).empty()) {
std::string Destroy = "Od:" + std::to_string(PID) + "-" + std::to_string(VID);
Engine->Network().SendToAll(nullptr, Destroy, true, true);
c->DeleteCar(VID);
}
}
void LuaAPI::MP::Set(int ConfigID, sol::object NewValue) {
switch (ConfigID) {
case 0: // debug
if (NewValue.is<bool>()) {
Application::Settings.DebugModeEnabled = NewValue.as<bool>();
beammp_info(std::string("Set `Debug` to ") + (Application::Settings.DebugModeEnabled ? "true" : "false"));
} else
beammp_lua_error("set invalid argument [2] expected boolean");
break;
case 1: // private
if (NewValue.is<bool>()) {
Application::Settings.Private = NewValue.as<bool>();
beammp_info(std::string("Set `Private` to ") + (Application::Settings.Private ? "true" : "false"));
} else
beammp_lua_error("set invalid argument [2] expected boolean");
break;
case 2: // max cars
if (NewValue.is<int>()) {
Application::Settings.MaxCars = NewValue.as<int>();
beammp_info(std::string("Set `MaxCars` to ") + std::to_string(Application::Settings.MaxCars));
} else
beammp_lua_error("set invalid argument [2] expected integer");
break;
case 3: // max players
if (NewValue.is<int>()) {
Application::Settings.MaxPlayers = NewValue.as<int>();
beammp_info(std::string("Set `MaxPlayers` to ") + std::to_string(Application::Settings.MaxPlayers));
} else
beammp_lua_error("set invalid argument [2] expected integer");
break;
case 4: // Map
if (NewValue.is<std::string>()) {
Application::Settings.MapName = NewValue.as<std::string>();
beammp_info(std::string("Set `Map` to ") + Application::Settings.MapName);
} else
beammp_lua_error("set invalid argument [2] expected string");
break;
case 5: // Name
if (NewValue.is<std::string>()) {
Application::Settings.ServerName = NewValue.as<std::string>();
beammp_info(std::string("Set `Name` to ") + Application::Settings.ServerName);
} else
beammp_lua_error("set invalid argument [2] expected string");
break;
case 6: // Desc
if (NewValue.is<std::string>()) {
Application::Settings.ServerDesc = NewValue.as<std::string>();
beammp_info(std::string("Set `Description` to ") + Application::Settings.ServerDesc);
} else
beammp_lua_error("set invalid argument [2] expected string");
break;
default:
beammp_warn("Invalid config ID \"" + std::to_string(ConfigID) + "\". Use `MP.Settings.*` enum for this.");
break;
}
}
void LuaAPI::MP::Sleep(size_t Ms) {
std::this_thread::sleep_for(std::chrono::milliseconds(Ms));
}
bool LuaAPI::MP::IsPlayerConnected(int ID) {
auto MaybeClient = GetClient(Engine->Server(), ID);
if (MaybeClient && !MaybeClient.value().expired()) {
return MaybeClient.value().lock()->IsConnected();
} else {
return false;
}
}
bool LuaAPI::MP::IsPlayerGuest(int ID) {
auto MaybeClient = GetClient(Engine->Server(), ID);
if (MaybeClient && !MaybeClient.value().expired()) {
return MaybeClient.value().lock()->IsGuest();
} else {
return false;
}
}
void LuaAPI::MP::PrintRaw(sol::variadic_args Args) {
std::string ToPrint = "";
for (const auto& Arg : Args) {
ToPrint += LuaToString(static_cast<const sol::object>(Arg));
ToPrint += "\t";
}
Application::Console().WriteRaw(ToPrint);
}
int LuaAPI::PanicHandler(lua_State* State) {
beammp_lua_error("PANIC: " + sol::stack::get<std::string>(State, 1));
return 0;
}
template <typename FnT, typename... ArgsT>
static std::pair<bool, std::string> FSWrapper(FnT Fn, ArgsT&&... Args) {
std::error_code errc;
std::pair<bool, std::string> Result;
Fn(std::forward<ArgsT>(Args)..., errc);
Result.first = errc == std::error_code {};
if (!Result.first) {
Result.second = errc.message();
}
return Result;
}
std::pair<bool, std::string> LuaAPI::FS::CreateDirectory(const std::string& Path) {
std::error_code errc;
std::pair<bool, std::string> Result;
fs::create_directories(fs::relative(Path), errc);
Result.first = errc == std::error_code {};
if (!Result.first) {
Result.second = errc.message();
}
return Result;
}
std::pair<bool, std::string> LuaAPI::FS::Remove(const std::string& Path) {
std::error_code errc;
std::pair<bool, std::string> Result;
fs::remove(fs::relative(Path), errc);
Result.first = errc == std::error_code {};
if (!Result.first) {
Result.second = errc.message();
}
return Result;
}
std::pair<bool, std::string> LuaAPI::FS::Rename(const std::string& Path, const std::string& NewPath) {
std::error_code errc;
std::pair<bool, std::string> Result;
fs::rename(fs::relative(Path), fs::relative(NewPath), errc);
Result.first = errc == std::error_code {};
if (!Result.first) {
Result.second = errc.message();
}
return Result;
}
std::pair<bool, std::string> LuaAPI::FS::Copy(const std::string& Path, const std::string& NewPath) {
std::error_code errc;
std::pair<bool, std::string> Result;
fs::copy(fs::relative(Path), fs::relative(NewPath), fs::copy_options::recursive, errc);
Result.first = errc == std::error_code {};
if (!Result.first) {
Result.second = errc.message();
}
return Result;
}
bool LuaAPI::FS::Exists(const std::string& Path) {
return fs::exists(fs::relative(Path));
}
std::string LuaAPI::FS::GetFilename(const std::string& Path) {
return fs::path(Path).filename().string();
}
std::string LuaAPI::FS::GetExtension(const std::string& Path) {
return fs::path(Path).extension().string();
}
std::string LuaAPI::FS::GetParentFolder(const std::string& Path) {
return fs::path(Path).parent_path().string();
}
bool LuaAPI::FS::IsDirectory(const std::string& Path) {
return fs::is_directory(Path);
}
bool LuaAPI::FS::IsFile(const std::string& Path) {
return fs::is_regular_file(Path);
}
std::string LuaAPI::FS::ConcatPaths(sol::variadic_args Args) {
fs::path Path;
for (size_t i = 0; i < Args.size(); ++i) {
auto Obj = Args[i];
if (!Obj.is<std::string>()) {
beammp_lua_error("FS.Concat called with non-string argument");
return "";
}
Path += Obj.as<std::string>();
if (i < Args.size() - 1 && !Path.empty()) {
Path += fs::path::preferred_separator;
}
}
auto Result = Path.lexically_normal().string();
return Result;
}
static void JsonEncodeRecursive(nlohmann::json& json, const sol::object& left, const sol::object& right, size_t depth = 0) {
if (depth > 100) {
beammp_lua_error("json serialize will not go deeper than 100 nested tables, internal references assumed, aborted this path");
return;
}
std::string key;
bool is_array = false;
switch (left.get_type()) {
case sol::type::lua_nil:
case sol::type::none:
case sol::type::poly:
case sol::type::boolean:
case sol::type::lightuserdata:
case sol::type::userdata:
case sol::type::thread:
case sol::type::function:
case sol::type::table:
beammp_lua_error("JsonEncode: left side of table field is unexpected type");
return;
case sol::type::string:
key = left.as<std::string>();
break;
case sol::type::number:
is_array = true;
// TODO: deal with this
break;
}
nlohmann::json value;
switch (right.get_type()) {
case sol::type::lua_nil:
case sol::type::none:
return;
case sol::type::poly:
beammp_lua_warn("unsure what to do with poly type in JsonEncode, ignoring");
return;
case sol::type::boolean:
value = right.as<bool>();
break;
case sol::type::lightuserdata:
beammp_lua_warn("unsure what to do with lightuserdata in JsonEncode, ignoring");
return;
case sol::type::userdata:
beammp_lua_warn("unsure what to do with userdata in JsonEncode, ignoring");
return;
case sol::type::thread:
beammp_lua_warn("unsure what to do with thread in JsonEncode, ignoring");
return;
case sol::type::string:
value = right.as<std::string>();
break;
case sol::type::number:
value = right.as<double>();
break;
case sol::type::function:
beammp_lua_warn("unsure what to do with function in JsonEncode, ignoring");
return;
case sol::type::table:
for (const auto& pair : right.as<sol::table>()) {
JsonEncodeRecursive(value, pair.first, pair.second, depth + 1);
}
break;
}
if (is_array) {
json.push_back(value);
} else {
json[key] = value;
}
}
std::string LuaAPI::MP::JsonEncode(const sol::table& object) {
nlohmann::json json;
// table
for (const auto& entry : object) {
JsonEncodeRecursive(json, entry.first, entry.second);
}
return json.dump();
}
std::string LuaAPI::MP::JsonDiff(const std::string& a, const std::string& b) {
if (!nlohmann::json::accept(a)) {
beammp_lua_error("JsonDiff first argument is not valid json: `" + a + "`");
return "";
}
if (!nlohmann::json::accept(b)) {
beammp_lua_error("JsonDiff second argument is not valid json: `" + b + "`");
return "";
}
auto a_json = nlohmann::json::parse(a);
auto b_json = nlohmann::json::parse(b);
return nlohmann::json::diff(a_json, b_json).dump();
}
std::string LuaAPI::MP::JsonDiffApply(const std::string& data, const std::string& patch) {
if (!nlohmann::json::accept(data)) {
beammp_lua_error("JsonDiffApply first argument is not valid json: `" + data + "`");
return "";
}
if (!nlohmann::json::accept(patch)) {
beammp_lua_error("JsonDiffApply second argument is not valid json: `" + patch + "`");
return "";
}
auto a_json = nlohmann::json::parse(data);
auto b_json = nlohmann::json::parse(patch);
a_json.patch(b_json);
return a_json.dump();
}
std::string LuaAPI::MP::JsonPrettify(const std::string& json) {
if (!nlohmann::json::accept(json)) {
beammp_lua_error("JsonPrettify argument is not valid json: `" + json + "`");
return "";
}
return nlohmann::json::parse(json).dump(4);
}
std::string LuaAPI::MP::JsonMinify(const std::string& json) {
if (!nlohmann::json::accept(json)) {
beammp_lua_error("JsonMinify argument is not valid json: `" + json + "`");
return "";
}
return nlohmann::json::parse(json).dump(-1);
}
std::string LuaAPI::MP::JsonFlatten(const std::string& json) {
if (!nlohmann::json::accept(json)) {
beammp_lua_error("JsonFlatten argument is not valid json: `" + json + "`");
return "";
}
return nlohmann::json::parse(json).flatten().dump(-1);
}
std::string LuaAPI::MP::JsonUnflatten(const std::string& json) {
if (!nlohmann::json::accept(json)) {
beammp_lua_error("JsonUnflatten argument is not valid json: `" + json + "`");
return "";
}
return nlohmann::json::parse(json).unflatten().dump(-1);
}
bool LuaAPI::MP::TriggerClientEventJson(int PlayerID, const std::string& EventName, const sol::table& Data) {
return InternalTriggerClientEvent(PlayerID, EventName, JsonEncode(Data));
}