BeamMP-Server/src/Lua/LuaSystem.cpp
Lion Kortlepel 8bc35fb82e Refactor to work on Linux / Unix, fix some compiler errors.
CMakeLists was also modified to make this work, but its scuffed
and i will hold on to that for a while longer
2020-11-01 02:00:27 +01:00

578 lines
19 KiB
C++

///
/// Created by Anonymous275 on 5/19/2020
///
#include "Lua/LuaSystem.hpp"
#include "Security/Enc.h"
#include "Client.hpp"
#include "Settings.h"
#include "Network.h"
#include "Logger.h"
#include "UnixCompat.h"
#include <iostream>
#include <future>
#include <utility>
LuaArg* CreateArg(lua_State *L,int T,int S){
if(S > T)return nullptr;
auto* temp = new LuaArg;
for(int C = S;C <= T;C++){
if(lua_isstring(L,C)){
temp->args.emplace_back(std::string(lua_tostring(L,C)));
}else if(lua_isinteger(L,C)){
temp->args.emplace_back(int(lua_tointeger(L,C)));
}else if(lua_isboolean(L,C)){
temp->args.emplace_back(bool(lua_toboolean(L,C)));
}else if(lua_isnumber(L,C)) {
temp->args.emplace_back(float(lua_tonumber(L, C)));
}
}
return temp;
}
void ClearStack(lua_State *L){
lua_settop(L,0);
}
Lua* GetScript(lua_State *L){
for(Lua*Script : PluginEngine){
if (Script->GetState() == L)return Script;
}
return nullptr;
}
void SendError(lua_State *L,const std::string&msg){
Lua* S = GetScript(L);
std::string a;
if(S == nullptr)a = Sec("Console");
else a = S->GetFileName().substr(S->GetFileName().find('\\'));
warn(a + Sec(" | Incorrect Call of ") + msg);
}
int Trigger(Lua*lua,const std::string& R, LuaArg*arg){
std::lock_guard<std::mutex> lockGuard(lua->Lock);
std::packaged_task<int()> task([lua,R,arg]{return CallFunction(lua,R,arg);});
std::future<int> f1 = task.get_future();
std::thread t(std::move(task));
t.detach();
auto status = f1.wait_for(std::chrono::seconds(5));
if(status != std::future_status::timeout)return f1.get();
SendError(lua->GetState(),R + " took too long to respond");
return 0;
}
int FutureWait(Lua*lua,const std::string& R, LuaArg*arg,bool Wait){
std::packaged_task<int()> task([lua,R,arg]{return Trigger(lua,R,arg);});
std::future<int> f1 = task.get_future();
std::thread t(std::move(task));
t.detach();
int T = 0;
if(Wait)T = 6;
auto status = f1.wait_for(std::chrono::seconds(T));
if(status != std::future_status::timeout)return f1.get();
return 0;
}
int TriggerLuaEvent(const std::string& Event,bool local,Lua*Caller,LuaArg* arg,bool Wait){
int R = 0;
for(Lua*Script : PluginEngine){
if(Script->IsRegistered(Event)){
if(local){
if (Script->GetPluginName() == Caller->GetPluginName()){
R += FutureWait(Script,Script->GetRegistered(Event),arg,Wait);
}
}else R += FutureWait(Script,Script->GetRegistered(Event), arg,Wait);
}
}
return R;
}
bool ConsoleCheck(lua_State *L, int r){
if (r != LUA_OK){
std::string msg = lua_tostring(L, -1);
warn(Sec("Console | ") + msg);
return false;
}
return true;
}
bool CheckLua(lua_State *L, int r){
if (r != LUA_OK){
std::string msg = lua_tostring(L, -1);
Lua * S = GetScript(L);
std::string a = S->GetFileName().substr(S->GetFileName().find('\\'));
warn(a + " | " + msg);
return false;
}
return true;
}
int lua_RegisterEvent(lua_State *L){
int Args = lua_gettop(L);
Lua* Script = GetScript(L);
if(Args == 2 && lua_isstring(L,1) && lua_isstring(L,2)){
Script->RegisterEvent(lua_tostring(L,1),lua_tostring(L,2));
}else SendError(L,Sec("RegisterEvent invalid argument count expected 2 got ") + std::to_string(Args));
return 0;
}
int lua_TriggerEventL(lua_State *L){
int Args = lua_gettop(L);
Lua* Script = GetScript(L);
if(Args > 0){
if(lua_isstring(L,1)){
TriggerLuaEvent(lua_tostring(L, 1), true, Script, CreateArg(L,Args,2),false);
}else SendError(L,Sec("TriggerLocalEvent wrong argument [1] need string"));
}else{
SendError(L,Sec("TriggerLocalEvent not enough arguments expected 1 got 0"));
}
return 0;
}
int lua_TriggerEventG(lua_State *L){
int Args = lua_gettop(L);
Lua* Script = GetScript(L);
if(Args > 0){
if(lua_isstring(L,1)) {
TriggerLuaEvent(lua_tostring(L, 1), false, Script, CreateArg(L,Args,2),false);
}else SendError(L,Sec("TriggerGlobalEvent wrong argument [1] need string"));
}else SendError(L,Sec("TriggerGlobalEvent not enough arguments"));
return 0;
}
char* ThreadOrigin(Lua*lua){
std::string T = "Thread in " + lua->GetFileName().substr(lua->GetFileName().find('\\'));
char* Data = new char[T.size()+1];
ZeroMemory(Data,T.size()+1);
memcpy(Data, T.c_str(),T.size());
return Data;
}
void SafeExecution(Lua* lua,const std::string& FuncName){
lua_State* luaState = lua->GetState();
lua_getglobal(luaState, FuncName.c_str());
if(lua_isfunction(luaState, -1)) {
char* Origin = ThreadOrigin(lua);
#ifdef __WIN32
__try{
int R = lua_pcall(luaState, 0, 0, 0);
CheckLua(luaState, R);
}__except(Handle(GetExceptionInformation(),Origin)){}
#else // unix
int R = lua_pcall(luaState, 0, 0, 0);
CheckLua(luaState, R);
#endif // __WIN32
delete [] Origin;
}
ClearStack(luaState);
}
void ExecuteAsync(Lua* lua,const std::string& FuncName){
std::lock_guard<std::mutex> lockGuard(lua->Lock);
SafeExecution(lua,FuncName);
}
void CallAsync(Lua* lua,const std::string& Func,int U){
lua->StopThread = false;
int D = 1000 / U;
while(!lua->StopThread){
ExecuteAsync(lua,Func);
std::this_thread::sleep_for(std::chrono::milliseconds(D));
}
}
int lua_StopThread(lua_State *L){
GetScript(L)->StopThread = true;
return 0;
}
int lua_CreateThread(lua_State *L){
int Args = lua_gettop(L);
if(Args > 1){
if(lua_isstring(L,1)) {
std::string STR = lua_tostring(L,1);
if(lua_isinteger(L,2) || lua_isnumber(L,2)){
int U = int(lua_tointeger(L,2));
if(U > 0 && U < 501){
std::thread t1(CallAsync,GetScript(L),STR,U);
t1.detach();
}else SendError(L,Sec("CreateThread wrong argument [2] number must be between 1 and 500"));
}else SendError(L,Sec("CreateThread wrong argument [2] need number"));
}else SendError(L,Sec("CreateThread wrong argument [1] need string"));
}else SendError(L,Sec("CreateThread not enough arguments"));
return 0;
}
int lua_Sleep(lua_State *L){
if(lua_isnumber(L,1)){
int t = int(lua_tonumber(L, 1));
std::this_thread::sleep_for(std::chrono::milliseconds(t));
}else{
SendError(L,Sec("Sleep not enough arguments"));
return 0;
}
return 1;
}
Client* GetClient(int ID){
for(Client*c : CI->Clients) {
if(c != nullptr && c->GetID() == ID)return c;
}
return nullptr;
}
int lua_isConnected(lua_State *L){
if(lua_isnumber(L,1)){
int ID = int(lua_tonumber(L, 1));
Client*c = GetClient(ID);
if(c != nullptr)lua_pushboolean(L, c->isConnected);
else return 0;
}else{
SendError(L,Sec("isConnected not enough arguments"));
return 0;
}
return 1;
}
int lua_GetPlayerName(lua_State *L){
if(lua_isnumber(L,1)){
int ID = int(lua_tonumber(L, 1));
Client*c = GetClient(ID);
if(c != nullptr)lua_pushstring(L, c->GetName().c_str());
else return 0;
}else{
SendError(L,Sec("GetPlayerName not enough arguments"));
return 0;
}
return 1;
}
int lua_GetPlayerCount(lua_State *L){
lua_pushinteger(L, CI->Size());
return 1;
}
int lua_GetDID(lua_State *L){
if(lua_isnumber(L,1)){
int ID = int(lua_tonumber(L, 1));
Client*c = GetClient(ID);
if(c != nullptr)lua_pushstring(L, c->GetDID().c_str());
else return 0;
}else{
SendError(L,Sec("GetDID not enough arguments"));
return 0;
}
return 1;
}
int lua_GetAllPlayers(lua_State *L){
lua_newtable(L);
int i = 1;
for (Client *c : CI->Clients) {
if(c == nullptr)continue;
lua_pushinteger(L, c->GetID());
lua_pushstring(L, c->GetName().c_str());
lua_settable(L,-3);
i++;
}
if(CI->Clients.empty())return 0;
return 1;
}
int lua_GetCars(lua_State *L){
if(lua_isnumber(L,1)){
int ID = int(lua_tonumber(L, 1));
Client*c = GetClient(ID);
if(c != nullptr){
int i = 1;
for (VData*v : c->GetAllCars()) {
if(v != nullptr) {
lua_pushinteger(L, v->ID);
lua_pushstring(L, v->Data.substr(3).c_str());
lua_settable(L, -3);
i++;
}
}
if(c->GetAllCars().empty())return 0;
}else return 0;
}else{
SendError(L,Sec("GetPlayerVehicles not enough arguments"));
return 0;
}
return 1;
}
int lua_dropPlayer(lua_State *L){
int Args = lua_gettop(L);
if(lua_isnumber(L,1)){
int ID = int(lua_tonumber(L, 1));
Client*c = GetClient(ID);
if(c == nullptr)return 0;
if(c->GetRole() == Sec("MDEV"))return 0;
std::string Reason;
if(Args > 1 && lua_isstring(L,2)){
Reason = std::string(Sec(" Reason : "))+lua_tostring(L,2);
}
Respond(c,"C:Server:You have been Kicked from the server! " + Reason,true);
c->SetStatus(-2);
closesocket(c->GetTCPSock());
}else SendError(L,Sec("DropPlayer not enough arguments"));
return 0;
}
int lua_sendChat(lua_State *L){
if(lua_isinteger(L,1) || lua_isnumber(L,1)){
if(lua_isstring(L,2)){
int ID = int(lua_tointeger(L,1));
if(ID == -1){
std::string Packet = "C:Server: " + std::string(lua_tostring(L, 2));
SendToAll(nullptr,Packet,true,true);
}else{
Client*c = GetClient(ID);
if(c != nullptr) {
if(!c->isSynced)return 0;
std::string Packet ="C:Server: " + std::string(lua_tostring(L, 2));
Respond(c, Packet, true);
}else SendError(L,Sec("SendChatMessage invalid argument [1] invalid ID"));
}
}else SendError(L,Sec("SendChatMessage invalid argument [2] expected string"));
}else SendError(L,Sec("SendChatMessage invalid argument [1] expected number"));
return 0;
}
int lua_RemoveVehicle(lua_State *L){
int Args = lua_gettop(L);
if(Args != 2){
SendError(L,Sec("RemoveVehicle invalid argument count expected 2 got ") + std::to_string(Args));
return 0;
}
if((lua_isinteger(L,1) || lua_isnumber(L,1)) && (lua_isinteger(L,2) || lua_isnumber(L,2))){
int PID = int(lua_tointeger(L,1));
int VID = int(lua_tointeger(L,2));
Client *c = GetClient(PID);
if(c == nullptr){
SendError(L,Sec("RemoveVehicle invalid Player ID"));
return 0;
}
if(c->GetRole() == "MDEV")return 0;
if(!c->GetCarData(VID).empty()){
std::string Destroy = "Od:" + std::to_string(PID)+"-"+std::to_string(VID);
SendToAll(nullptr,Destroy,true,true);
c->DeleteCar(VID);
}
}else SendError(L,Sec("RemoveVehicle invalid argument expected number"));
return 0;
}
int lua_HWID(lua_State *L){
lua_pushinteger(L, -1);
return 1;
}
int lua_RemoteEvent(lua_State *L){
int Args = lua_gettop(L);
if(Args != 3){
SendError(L,Sec("TriggerClientEvent invalid argument count expected 3 got ") + std::to_string(Args));
return 0;
}
if(!lua_isnumber(L,1)){
SendError(L,Sec("TriggerClientEvent invalid argument [1] expected number"));
return 0;
}
if(!lua_isstring(L,2)){
SendError(L,Sec("TriggerClientEvent invalid argument [2] expected string"));
return 0;
}
if(!lua_isstring(L,3)){
SendError(L,Sec("TriggerClientEvent invalid argument [3] expected string"));
return 0;
}
int ID = int(lua_tointeger(L,1));
std::string Packet = "E:" + std::string(lua_tostring(L,2)) + ":" + std::string(lua_tostring(L,3));
if(ID == -1)SendToAll(nullptr,Packet,true,true);
else{
Client *c = GetClient(ID);
if(c == nullptr){
SendError(L,Sec("TriggerClientEvent invalid Player ID"));
return 0;
}
Respond(c,Packet,true);
}
return 0;
}
int lua_ServerExit(lua_State *L){
exit(0);
}
int lua_Set(lua_State *L){
int Args = lua_gettop(L);
if(Args != 2){
SendError(L,Sec("set invalid argument count expected 2 got ") + std::to_string(Args));
return 0;
}
if(!lua_isnumber(L,1)){
SendError(L,Sec("set invalid argument [1] expected number"));
return 0;
}
Lua* Src = GetScript(L);
std::string Name;
if(Src == nullptr)Name = Sec("Console");
else Name = Src->GetPluginName();
int C = int(lua_tointeger(L,1));
switch(C){
case 0: //debug
if(lua_isboolean(L,2)){
Debug = lua_toboolean(L,2);
info(Name + Sec(" | Debug -> ") + (Debug?"true":"false"));
}
else SendError(L,Sec("set invalid argument [2] expected boolean for ID : 0"));
break;
case 1: //private
if(lua_isboolean(L,2)){
Private = lua_toboolean(L,2);
info(Name + Sec(" | Private -> ") + (Private?"true":"false"));
}
else SendError(L,Sec("set invalid argument [2] expected boolean for ID : 1"));
break;
case 2: //max cars
if(lua_isnumber(L,2)){
MaxCars = int(lua_tointeger(L,2));
info(Name + Sec(" | MaxCars -> ") + std::to_string(MaxCars));
}
else SendError(L,Sec("set invalid argument [2] expected number for ID : 2"));
break;
case 3: //max players
if(lua_isnumber(L,2)){
MaxPlayers = int(lua_tointeger(L,2));
info(Name + Sec(" | MaxPlayers -> ") + std::to_string(MaxPlayers));
}
else SendError(L,Sec("set invalid argument [2] expected number for ID : 3"));
break;
case 4: //Map
if(lua_isstring(L,2)){
MapName = lua_tostring(L,2);
info(Name + Sec(" | MapName -> ") + MapName);
}
else SendError(L,Sec("set invalid argument [2] expected string for ID : 4"));
break;
case 5: //Name
if(lua_isstring(L,2)){
ServerName = lua_tostring(L,2);
info(Name + Sec(" | ServerName -> ") + ServerName);
}
else SendError(L,Sec("set invalid argument [2] expected string for ID : 5"));
break;
case 6: //Desc
if(lua_isstring(L,2)){
ServerDesc = lua_tostring(L,2);
info(Name + Sec(" | ServerDesc -> ") + ServerDesc);
}
else SendError(L,Sec("set invalid argument [2] expected string for ID : 6"));
break;
default:
warn(Sec("Invalid config ID : ") + std::to_string(C));
break;
}
return 0;
}
extern "C" {
int lua_Print(lua_State *L) {
int Arg = lua_gettop(L);
for (int i = 1; i <= Arg; i++){
ConsoleOut(lua_tostring(L, i) + std::string("\n"));
}
return 0;
}
}
void Lua::Init(){
luaL_openlibs(luaState);
lua_register(luaState,"TriggerGlobalEvent",lua_TriggerEventG);
lua_register(luaState,"TriggerLocalEvent",lua_TriggerEventL);
lua_register(luaState,"TriggerClientEvent",lua_RemoteEvent);
lua_register(luaState,"GetPlayerCount",lua_GetPlayerCount);
lua_register(luaState,"isPlayerConnected",lua_isConnected);
lua_register(luaState,"RegisterEvent",lua_RegisterEvent);
lua_register(luaState,"GetPlayerName",lua_GetPlayerName);
lua_register(luaState,"RemoveVehicle",lua_RemoveVehicle);
lua_register(luaState,"GetPlayerDiscordID",lua_GetDID);
lua_register(luaState,"GetPlayerVehicles",lua_GetCars);
lua_register(luaState,"CreateThread",lua_CreateThread);
lua_register(luaState,"SendChatMessage",lua_sendChat);
lua_register(luaState,"GetPlayers",lua_GetAllPlayers);
lua_register(luaState,"StopThread",lua_StopThread);
lua_register(luaState,"DropPlayer",lua_dropPlayer);
lua_register(luaState,"GetPlayerHWID",lua_HWID);
lua_register(luaState,"exit",lua_ServerExit);
lua_register(luaState,"Sleep",lua_Sleep);
lua_register(luaState,"print",lua_Print);
lua_register(luaState,"Set",lua_Set);
if(!Console)Reload();
}
void Lua::Execute(const std::string& Command){
if(ConsoleCheck(luaState,luaL_dostring(luaState,Command.c_str()))){
lua_settop(luaState, 0);
}
}
void Lua::Reload(){
if(CheckLua(luaState,luaL_dofile(luaState,FileName.c_str()))){
CallFunction(this,Sec("onInit"), nullptr);
}
}
char* Lua::GetOrigin(){
std::string T = GetFileName().substr(GetFileName().find('\\'));
char* Data = new char[T.size()];
ZeroMemory(Data,T.size());
memcpy(Data,T.c_str(),T.size());
return Data;
}
int CallFunction(Lua*lua,const std::string& FuncName,LuaArg* Arg){
lua_State*luaState = lua->GetState();
lua_getglobal(luaState, FuncName.c_str());
if(lua_isfunction(luaState, -1)) {
int Size = 0;
if(Arg != nullptr){
Size = int(Arg->args.size());
Arg->PushArgs(luaState);
delete Arg;
Arg = nullptr;
}
int R = 0;
char* Origin = lua->GetOrigin();
#ifdef __WIN32
__try{
#endif // __WIN32
R = lua_pcall(luaState, Size, 1, 0);
if (CheckLua(luaState, R)){
if (lua_isnumber(luaState, -1)) {
return int(lua_tointeger(luaState, -1));
}
}
#ifdef __WIN32
}__except(Handle(GetExceptionInformation(),Origin)){}
#endif // __WIN32
delete [] Origin;
}
ClearStack(luaState);
return 0;
}
void Lua::SetPluginName(const std::string&Name){
PluginName = Name;
}
void Lua::SetFileName(const std::string&Name){
FileName = Name;
}
void Lua::RegisterEvent(const std::string& Event,const std::string& FunctionName){
RegisteredEvents.insert(std::make_pair(Event,FunctionName));
}
void Lua::UnRegisterEvent(const std::string&Event){
for(const std::pair<std::string,std::string>& a : RegisteredEvents){
if(a.first == Event) {
RegisteredEvents.erase(a);
break;
}
}
}
bool Lua::IsRegistered(const std::string&Event){
for(const std::pair<std::string,std::string>& a : RegisteredEvents){
if(a.first == Event)return true;
}
return false;
}
std::string Lua::GetRegistered(const std::string&Event){
for(const std::pair<std::string,std::string>& a : RegisteredEvents){
if(a.first == Event)return a.second;
}
return "";
}
std::string Lua::GetFileName(){
return FileName;
}
std::string Lua::GetPluginName(){
return PluginName;
}
lua_State* Lua::GetState(){
return luaState;
}
void Lua::SetLastWrite(fs::file_time_type time){
LastWrote = time;
}
fs::file_time_type Lua::GetLastWrite(){
return LastWrote;
}