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#include <iostream>
#include "Network.hpp"
#include "PacketBuilder.hpp"
Network::Network(std::string address, unsigned short port) : m_address(address), m_port(port) {
std::cout << "Connecting to server " << m_address << ":" << m_port << std::endl;
sf::Socket::Status status = m_socket.connect(sf::IpAddress(m_address), m_port);
m_socket.setBlocking(true);
if (status != sf::Socket::Done) {
if (status == sf::Socket::Error) {
std::cerr << "Can't connect to remote server" << std::endl;
throw 14;
} else {
std::cerr << "Connection failed with unknown reason" << std::endl;
throw 13;
}
}
std::cout << "Connected." << std::endl;
}
Network::~Network() {
std::cout << "Disconnecting..." << std::endl;
m_socket.disconnect();
}
void Network::SendHandshake(std::string username) {
//Handshake packet
Packet handshakePacket = PacketBuilder::CHandshaking0x00(316, m_address, m_port, 2);
SendPacket(handshakePacket);
//LoginStart packet
Field fName;
fName.SetString(username);
Packet loginPacket(0);
loginPacket.AddField(fName);
SendPacket(loginPacket);
}
void Network::SendPacket(Packet &packet) {
m_socket.setBlocking(true);
byte *packetData = new byte[packet.GetLength()];
packet.CopyToBuff(packetData);
m_socket.send(packetData, packet.GetLength());
delete[] packetData;
}
Packet Network::ReceivePacket() {
byte bufLen[5] = {0};
size_t rec = 0;
for (int i = 0; i < 5; i++) {
byte buff = 0;
size_t r = 0;
m_socket.receive(&buff, 1, r);
rec += r;
bufLen[i] = buff;
if ((buff & 0b10000000) == 0) {
break;
}
}
Field fLen = FieldParser::Parse(VarInt, bufLen);
size_t packetLen = fLen.GetVarInt() + fLen.GetLength();
if (packetLen > 1024 * 1024 * 30)
std::cout << "OMG! SIZEOF PACKET IS " << packetLen << std::endl;
if (packetLen < rec) {
return Packet(bufLen);
}
byte *bufPack = new byte[packetLen];
for (int i = 0; i < packetLen; i++)
bufPack[i] = 'N';
memcpy(bufPack, bufLen, rec);
if (m_socket.receive(bufPack + rec, packetLen - rec, rec) != sf::Socket::Done) {
delete[] bufPack;
throw 93;
}
rec++;
//Check for losted data
int losted = 0;
for (int i = packetLen - 2; i > 0; i--)
if (bufPack[i] == 'N')
losted++;
if (losted > 100) {
if (m_socket.receive(bufPack + rec, packetLen - rec, rec) != sf::Socket::Done) {
throw 93;
}
std::cout << "Keep receiving!" << std::endl;
}
//One more time
losted = 0;
for (int i = packetLen - 2; i > 0; i--)
if (bufPack[i] == 'N')
losted++;
if (losted > 100) {
std::cout << "\x1b[31m" << "Losted " << losted << " bytes of " << packetLen << "\x1b[0m" << std::endl;
delete[] bufPack;
throw 93;
}
Packet p(bufPack);
delete[] bufPack;
return p;
}
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