DarkflameServer/dChatServer/ChatServer.cpp
EmosewaMC 1afe717563 Properly exit
Properly exit based on the path taken to shutdown master.

Tested that shutting down through sigint or sigterm returns -1
Tested that a segfault exits the program properly
Need to test that players who are trying to connect while master is shutting down are not able to spawn more child worlds.
2022-12-15 05:46:03 -08:00

308 lines
9.2 KiB
C++

#include <iostream>
#include <string>
#include <chrono>
#include <thread>
//DLU Includes:
#include "dCommonVars.h"
#include "dServer.h"
#include "dLogger.h"
#include "Database.h"
#include "dConfig.h"
#include "dMessageIdentifiers.h"
#include "dChatFilter.h"
#include "Diagnostics.h"
#include "AssetManager.h"
#include "BinaryPathFinder.h"
#include "PlayerContainer.h"
#include "ChatPacketHandler.h"
#include "Game.h"
namespace Game {
dLogger* logger;
dServer* server;
dConfig* config;
dChatFilter* chatFilter;
AssetManager* assetManager;
bool shouldShutdown = false;
}
//RakNet includes:
#include "RakNetDefines.h"
dLogger* SetupLogger();
void HandlePacket(Packet* packet);
PlayerContainer playerContainer;
int main(int argc, char** argv) {
Diagnostics::SetProcessName("Chat");
Diagnostics::SetProcessFileName(argv[0]);
Diagnostics::Initialize();
//Create all the objects we need to run our service:
Game::logger = SetupLogger();
if (!Game::logger) return 0;
Game::logger->Log("ChatServer", "Starting Chat server...");
Game::logger->Log("ChatServer", "Version: %i.%i", PROJECT_VERSION_MAJOR, PROJECT_VERSION_MINOR);
Game::logger->Log("ChatServer", "Compiled on: %s", __TIMESTAMP__);
//Read our config:
dConfig config("chatconfig.ini");
Game::config = &config;
Game::logger->SetLogToConsole(bool(std::stoi(config.GetValue("log_to_console"))));
Game::logger->SetLogDebugStatements(config.GetValue("log_debug_statements") == "1");
try {
std::string clientPathStr = config.GetValue("client_location");
if (clientPathStr.empty()) clientPathStr = "./res";
std::filesystem::path clientPath = std::filesystem::path(clientPathStr);
if (clientPath.is_relative()) {
clientPath = BinaryPathFinder::GetBinaryDir() / clientPath;
}
Game::assetManager = new AssetManager(clientPath);
} catch (std::runtime_error& ex) {
Game::logger->Log("ChatServer", "Got an error while setting up assets: %s", ex.what());
return EXIT_FAILURE;
}
//Connect to the MySQL Database
std::string mysql_host = config.GetValue("mysql_host");
std::string mysql_database = config.GetValue("mysql_database");
std::string mysql_username = config.GetValue("mysql_username");
std::string mysql_password = config.GetValue("mysql_password");
try {
Database::Connect(mysql_host, mysql_database, mysql_username, mysql_password);
} catch (sql::SQLException& ex) {
Game::logger->Log("ChatServer", "Got an error while connecting to the database: %s", ex.what());
Database::Destroy("ChatServer");
delete Game::server;
delete Game::logger;
return 0;
}
//Find out the master's IP:
std::string masterIP;
int masterPort = 1000;
sql::PreparedStatement* stmt = Database::CreatePreppedStmt("SELECT ip, port FROM servers WHERE name='master';");
auto res = stmt->executeQuery();
while (res->next()) {
masterIP = res->getString(1).c_str();
masterPort = res->getInt(2);
}
delete res;
delete stmt;
//It's safe to pass 'localhost' here, as the IP is only used as the external IP.
int maxClients = 50;
int ourPort = 1501;
if (config.GetValue("max_clients") != "") maxClients = std::stoi(config.GetValue("max_clients"));
if (config.GetValue("port") != "") ourPort = std::atoi(config.GetValue("port").c_str());
Game::server = new dServer(config.GetValue("external_ip"), ourPort, 0, maxClients, false, true, Game::logger, masterIP, masterPort, ServerType::Chat, Game::config, &Game::shouldShutdown);
Game::chatFilter = new dChatFilter(Game::assetManager->GetResPath().string() + "/chatplus_en_us", bool(std::stoi(config.GetValue("dont_generate_dcf"))));
//Run it until server gets a kill message from Master:
auto t = std::chrono::high_resolution_clock::now();
Packet* packet = nullptr;
int framesSinceLastFlush = 0;
int framesSinceMasterDisconnect = 0;
int framesSinceLastSQLPing = 0;
while (!Game::shouldShutdown) {
//Check if we're still connected to master:
if (!Game::server->GetIsConnectedToMaster()) {
framesSinceMasterDisconnect++;
if (framesSinceMasterDisconnect >= 30)
break; //Exit our loop, shut down.
} else framesSinceMasterDisconnect = 0;
//In world we'd update our other systems here.
//Check for packets here:
Game::server->ReceiveFromMaster(); //ReceiveFromMaster also handles the master packets if needed.
packet = Game::server->Receive();
if (packet) {
HandlePacket(packet);
Game::server->DeallocatePacket(packet);
packet = nullptr;
}
//Push our log every 30s:
if (framesSinceLastFlush >= 900) {
Game::logger->Flush();
framesSinceLastFlush = 0;
} else framesSinceLastFlush++;
//Every 10 min we ping our sql server to keep it alive hopefully:
if (framesSinceLastSQLPing >= 40000) {
//Find out the master's IP for absolutely no reason:
std::string masterIP;
int masterPort;
sql::PreparedStatement* stmt = Database::CreatePreppedStmt("SELECT ip, port FROM servers WHERE name='master';");
auto res = stmt->executeQuery();
while (res->next()) {
masterIP = res->getString(1).c_str();
masterPort = res->getInt(2);
}
delete res;
delete stmt;
framesSinceLastSQLPing = 0;
} else framesSinceLastSQLPing++;
//Sleep our thread since auth can afford to.
t += std::chrono::milliseconds(mediumFramerate); //Chat can run at a lower "fps"
std::this_thread::sleep_until(t);
}
//Delete our objects here:
Database::Destroy("ChatServer");
delete Game::server;
delete Game::logger;
exit(EXIT_SUCCESS);
return EXIT_SUCCESS;
}
dLogger* SetupLogger() {
std::string logPath = (BinaryPathFinder::GetBinaryDir() / ("logs/ChatServer_" + std::to_string(time(nullptr)) + ".log")).string();
bool logToConsole = false;
bool logDebugStatements = false;
#ifdef _DEBUG
logToConsole = true;
logDebugStatements = true;
#endif
return new dLogger(logPath, logToConsole, logDebugStatements);
}
void HandlePacket(Packet* packet) {
if (packet->data[0] == ID_DISCONNECTION_NOTIFICATION || packet->data[0] == ID_CONNECTION_LOST) {
Game::logger->Log("ChatServer", "A server has disconnected, erasing their connected players from the list.");
}
if (packet->data[0] == ID_NEW_INCOMING_CONNECTION) {
Game::logger->Log("ChatServer", "A server is connecting, awaiting user list.");
}
if (packet->data[1] == CHAT_INTERNAL) {
switch (packet->data[3]) {
case MSG_CHAT_INTERNAL_PLAYER_ADDED_NOTIFICATION:
playerContainer.InsertPlayer(packet);
break;
case MSG_CHAT_INTERNAL_PLAYER_REMOVED_NOTIFICATION:
playerContainer.RemovePlayer(packet);
break;
case MSG_CHAT_INTERNAL_MUTE_UPDATE:
playerContainer.MuteUpdate(packet);
break;
case MSG_CHAT_INTERNAL_CREATE_TEAM:
playerContainer.CreateTeamServer(packet);
break;
case MSG_CHAT_INTERNAL_ANNOUNCEMENT: {
//we just forward this packet to every connected server
CINSTREAM;
Game::server->Send(&inStream, packet->systemAddress, true); //send to everyone except origin
break;
}
default:
Game::logger->Log("ChatServer", "Unknown CHAT_INTERNAL id: %i", int(packet->data[3]));
}
}
if (packet->data[1] == CHAT) {
switch (packet->data[3]) {
case MSG_CHAT_GET_FRIENDS_LIST:
ChatPacketHandler::HandleFriendlistRequest(packet);
break;
case MSG_CHAT_GET_IGNORE_LIST:
Game::logger->Log("ChatServer", "Asked for ignore list, but is unimplemented right now.");
break;
case MSG_CHAT_TEAM_GET_STATUS:
ChatPacketHandler::HandleTeamStatusRequest(packet);
break;
case MSG_CHAT_ADD_FRIEND_REQUEST:
//this involves someone sending the initial request, the response is below, response as in from the other player.
//We basically just check to see if this player is online or not and route the packet.
ChatPacketHandler::HandleFriendRequest(packet);
break;
case MSG_CHAT_ADD_FRIEND_RESPONSE:
//This isn't the response a server sent, rather it is a player's response to a received request.
//Here, we'll actually have to add them to eachother's friend lists depending on the response code.
ChatPacketHandler::HandleFriendResponse(packet);
break;
case MSG_CHAT_REMOVE_FRIEND:
ChatPacketHandler::HandleRemoveFriend(packet);
break;
case MSG_CHAT_GENERAL_CHAT_MESSAGE:
ChatPacketHandler::HandleChatMessage(packet);
break;
case MSG_CHAT_PRIVATE_CHAT_MESSAGE:
//This message is supposed to be echo'd to both the sender and the receiver
//BUT: they have to have different responseCodes, so we'll do some of the ol hacky wacky to fix that right up.
ChatPacketHandler::HandlePrivateChatMessage(packet);
break;
case MSG_CHAT_TEAM_INVITE:
ChatPacketHandler::HandleTeamInvite(packet);
break;
case MSG_CHAT_TEAM_INVITE_RESPONSE:
ChatPacketHandler::HandleTeamInviteResponse(packet);
break;
case MSG_CHAT_TEAM_LEAVE:
ChatPacketHandler::HandleTeamLeave(packet);
break;
case MSG_CHAT_TEAM_SET_LEADER:
ChatPacketHandler::HandleTeamPromote(packet);
break;
case MSG_CHAT_TEAM_KICK:
ChatPacketHandler::HandleTeamKick(packet);
break;
case MSG_CHAT_TEAM_SET_LOOT:
ChatPacketHandler::HandleTeamLootOption(packet);
break;
default:
Game::logger->Log("ChatServer", "Unknown CHAT id: %i", int(packet->data[3]));
}
}
if (packet->data[1] == WORLD) {
switch (packet->data[3]) {
case MSG_WORLD_CLIENT_ROUTE_PACKET: {
Game::logger->Log("ChatServer", "Routing packet from world");
break;
}
default:
Game::logger->Log("ChatServer", "Unknown World id: %i", int(packet->data[3]));
}
}
}