FactoryCraft-Server/FactoryCraft/Server.cpp

#include "Server.h"
#include <iostream>
#include <Klient.h>
#include <Globals.h>
#include <HttpRequest.h>
#include <JSON.h>
#include <AsynchronCall.h>

// Inhalt der LoginServer Klasse aus LoginServer.h
// Konstruktor 
FactoryCraftServer::FactoryCraftServer(InitDatei* zIni)
	: ReferenceCounter()
{
	Network::Start(100);
	runningThreads = 0;
	klients = new RCArray< FCKlient >();
	ini = dynamic_cast<InitDatei*>(zIni->getThis());
	id = *zIni->zWert("ServerId");
	sslServer = new SSLServer();
	sslServer->setPrivateKeyPassword(zIni->zWert("SSLPasswort")->getText());
	sslServer->setCertificateFile(zIni->zWert("SSLCert")->getText());
	std::cout << "using cert file " << zIni->zWert("SSLCert")->getText() << "\n";
	sslServer->setPrivateKeyFile(zIni->zWert("SSLKey")->getText());
	std::cout << "using private key " << zIni->zWert("SSLKey")->getText() << "\n";
	server = new Server();
	std::cout << "Server Port: " << ini->zWert("Port")->getText() << "\n";
	if (!server->verbinde((unsigned short)TextZuInt(ini->zWert("Port")->getText(), 10), 10))
	{
		std::cout << "Der Server konnte nicht gestartet werden.\n";
		exit(1);
	}
	std::cout << "SSL Server Port: " << ini->zWert("SSLPort")->getText() << "\n";
	if (!sslServer->verbinde((unsigned short)TextZuInt(ini->zWert("SSLPort")->getText(), 10), 10))
	{
		std::cout << "Der SSL Server konnte nicht gestartet werden.\n";
		exit(2);
	}
	Game::initialize(zIni->zWert("World")->getText(), zIni->zWert("SaveDir")->getText());
	new Framework::AsynchronCall("Server", [this]()
		{
			runningThreads++;
			while (server->isConnected())
			{
				SKlient* klient = server->getKlient();
				if (!klient)
					continue;
				unsigned short len;
				klient->setEmpfangTimeout(5000);
				klient->getNachricht((char*)&len, 2);
				char* key = new char[len];
				klient->getNachricht((char*)key, len);
				bool bg;
				klient->getNachricht((char*)&bg, 1);
				klient->setEmpfangTimeout(0);
				bool found = 0;
				EnterCriticalSection(&cs);
				for (FCKlient* client : *klients)
				{
					if (client->matchAuthKey(key, len))
					{
						if (bg)
							client->setBackgroundClient(klient);
						else
							client->setForegroundClient(klient);
						found = 1;
						break;
					}
				}
				LeaveCriticalSection(&cs);
				if (!found)
					klient->release();
			}
			runningThreads--;
		});
	InitializeCriticalSection(&cs);
}

// Destruktor 
FactoryCraftServer::~FactoryCraftServer()
{
	sslServer->trenne();
	server->trenne();
	while (runningThreads > 0)
		Sleep(100);
	sslServer->release();
	server->release();
	if (klients)
		klients->release();
	ini->release();
	Game::INSTANCE->requestStop();
	Game::INSTANCE->release();
	DeleteCriticalSection(&cs);
}

// nicht constant 
void FactoryCraftServer::run()
{
	runningThreads++;
	while (sslServer->isConnected())
	{
		SSLSKlient* klient = sslServer->getKlient();
		if (!klient)
			continue;
		Framework::getThreadRegister()->cleanUpClosedThreads();
		FCKlient* clHandle = new FCKlient(klient, dynamic_cast<FactoryCraftServer*>(getThis()));
		EnterCriticalSection(&cs);
		klients->add(clHandle);
		LeaveCriticalSection(&cs);
		clHandle->start();
	}
	runningThreads--;
}

void FactoryCraftServer::close()
{
	sslServer->trenne();
	EnterCriticalSection(&cs);
	for (int i = 0; i < klients->getEintragAnzahl(); i++)
		klients->z(i)->absturz();
	klients = (RCArray< FCKlient > *)klients->release();
	Game::INSTANCE->save();
	LeaveCriticalSection(&cs);
}

bool FactoryCraftServer::absturzKlient(int accountId)
{
	bool gefunden = 0;
	EnterCriticalSection(&cs);
	for (int i = 0; i < klients->getEintragAnzahl(); i++)
	{
		if (klients->z(i) && klients->z(i)->getAccountId() == accountId)
		{
			klients->z(i)->absturz();
			klients->remove(i);
			gefunden = 1;
			break;
		}
	}
	LeaveCriticalSection(&cs);
	return gefunden;
}

bool FactoryCraftServer::removeKlient(FCKlient* zKlient)
{
	bool gefunden = 0;
	EnterCriticalSection(&cs);
	for (int i = 0; i < klients->getEintragAnzahl(); i++)
	{
		if (klients->z(i) == zKlient)
		{
			klients->remove(i);
			gefunden = 1;
			break;
		}
	}
	LeaveCriticalSection(&cs);
	return gefunden;
}

bool FactoryCraftServer::hatClients() const
{
	return klients->hat(0);
}

int FactoryCraftServer::getUnencryptedPort() const
{
	return server->getPort();
}

char* randomKey(int& len)
{
	len = 1024 + (int)(((double)rand() / RAND_MAX - 0.5) * 512);
	char* key = new char[len];
	for (int i = 0; i < len; i++)
		key[i] = (char)(((double)rand() / RAND_MAX) * 256);
	return key;
}

// Inhalt der LSKlient aus LoginServer.h
// Konstruktor
FCKlient::FCKlient(SSLSKlient* klient, FactoryCraftServer* ls)
	: Thread()
{
	this->klient = klient;
	background = 0;
	foreground = 0;
	accountId = 0;
	this->ls = ls;
	zGameClient = 0;
	backgroundReader = 0;
	foregroundReader = 0;
	backgroundWriter = 0;
	foregroundWriter = 0;
	authKey = randomKey(authKeyLen);
}

// Destruktor 
FCKlient::~FCKlient()
{
	if (zGameClient)
	{
		zGameClient->logout();
		zGameClient = (GameClient*)zGameClient->release();
	}
	if (background)
		background->release();
	if (foreground)
		foreground->release();
	delete backgroundReader;
	delete foregroundReader;
	delete backgroundWriter;
	delete foregroundWriter;
	klient->release();
	ls->release();
	delete[] authKey;
}

// nicht constant 
void FCKlient::setForegroundClient(SKlient* foreground)
{
	this->foreground = foreground;
	foregroundReader = new NetworkReader(foreground);
	foregroundWriter = new NetworkWriter(foreground);
	if (foreground && background)
		zGameClient = Game::INSTANCE->addPlayer(dynamic_cast<FCKlient*>(getThis()), Framework::Text((int)accountId));
	new AsynchronCall([this]()
		{
			while (this->foreground->waitForNextMessage())
			{
				if (zGameClient)
					zGameClient->addMessage(foregroundReader);
				if (!zGameClient)
					Sleep(100);
			}
			zGameClient->logout();
			ls->removeKlient(this);
		});
}

void FCKlient::setBackgroundClient(SKlient* background)
{
	this->background = background;
	backgroundReader = new NetworkReader(background);
	backgroundWriter = new NetworkWriter(background);
	if (foreground && background)
		zGameClient = Game::INSTANCE->addPlayer(dynamic_cast<FCKlient*>(getThis()), Framework::Text((int)accountId));
	new AsynchronCall([this]()
		{
			while (this->background->waitForNextMessage())
			{
				if (zGameClient)
					zGameClient->addMessage(backgroundReader);
				if (!zGameClient)
					Sleep(100);
			}
			zGameClient->logout();
			ls->removeKlient(this);
		});
}

void FCKlient::absturz()
{
	ende();
	klient->trenne();
}

void FCKlient::thread()
{
	while (1)
	{
		char c = 0;
		if (!klient->getNachricht(&c, 1))
			break;
		else
		{
			bool br = 0;
			switch (c)
			{
			case 1: // Klient identifikation
			{
				int accountId = 0;
				klient->getNachricht((char*)&accountId, 4);
				unsigned char secretLength = 0;
				klient->getNachricht((char*)&secretLength, 1);
				char* secret = new char[secretLength + 1];
				klient->getNachricht(secret, (int)secretLength);
				secret[secretLength] = 0;
				Text data = "{\"account_id\":";
				data += accountId;
				data += ", \"secret\": \"";
				data += secret;
				data += "\"}";
				bool ok = false;
				HTTP::Answer* answer = HTTP::PostRequest("/game_client/api/verify_client.php", "koljastrohm-games.com", data, "application/json", 443, true).execute();
				if (answer->getStatusCode() == 200)
				{
					JSON::JSONObject obj(answer->getData());
					if (obj.hasValue("verified"))
					{
						JSON::JSONValue* value = obj.getValue("verified");
						if (value->getType() == JSON::JSONType::BOOLEAN)
						{
							if (((JSON::JSONBool*)value)->getBool())
							{
								this->accountId = accountId;
								if (zGameClient)
								{
									zGameClient->logout();
									zGameClient = (GameClient*)zGameClient->release();
								}
								klient->sende("\1", 1);
								klient->sende((char*)&authKeyLen, 4);
								klient->sende(authKey, authKeyLen);
								int port = ls->getUnencryptedPort();
								klient->sende((char*)&port, 4);
								ok = true;
							}
						}
						value->release();
					}
				}
				answer->release();
				delete[]secret;
				if (!ok)
					klient->sende("\0", 1);
				break;
			}
			case 2: // Verbindungsende
				br = 1;
				if (zGameClient)
				{
					zGameClient->logout();
					zGameClient = (GameClient*)zGameClient->release();
				}
				klient->sende("\1", 1);
				break;
			default:
				br = 1;
				break;
			}
			if (br)
				break;
		}
	}
}

int FCKlient::getAccountId() const // gibt die KlientId zurück
{
	return accountId;
}

NetworkWriter* FCKlient::zBackgroundWriter() const
{
	return backgroundWriter;
}

NetworkWriter* FCKlient::zForegroundWriter() const
{
	return foregroundWriter;
}

bool FCKlient::matchAuthKey(char* key, int len) const
{
	if (foreground && background)
		return 0;
	if (len != authKeyLen)
		return 0;
	for (int i = 0; i < len; i++)
	{
		if (key[i] != authKey[i])
			return 0;
	}
	return 1;
}