void DuktoProtocol::handleMessage(QByteArray &data, QHostAddress &sender)
{
char msgtype = data.at(0);
switch(msgtype)
{
case 0x01: // HELLO (broadcast)
case 0x02: // HELLO (unicast)
data.remove(0, 1);
if (data != getSystemSignature()) {
mPeers[sender.toString()] = Peer(sender, QString::fromUtf8(data), DEFAULT_UDP_PORT);
if (msgtype == 0x01) sayHello(sender, DEFAULT_UDP_PORT);
emit peerListAdded(mPeers[sender.toString()]);
}
break;
case 0x03: // GOODBYE
emit peerListRemoved(mPeers[sender.toString()]);
mPeers.remove(sender.toString());
break;
case 0x04: // HELLO (broadcast) with PORT
case 0x05: // HELLO (unicast) with PORT
data.remove(0, 1);
qint16 port = *((qint16*) data.constData());
data.remove(0, 2);
if (data != getSystemSignature()) {
mPeers[sender.toString()] = Peer(sender, QString::fromUtf8(data), port);
if (msgtype == 0x04) sayHello(sender, port);
emit peerListAdded(mPeers[sender.toString()]);
}
break;
}
}
void DuktoProtocol::handleMessage(QByteArray &data, QHostAddress &sender)
{
char msgtype = data.at(0);
switch(msgtype)
{
case MSG_HELLO_BROADCAST:
case MSG_HELLO_UNICAST:
data.remove(0, 1);
if (data != getSystemSignature()) {
mPeers[sender.toString()] = Peer(sender, QString::fromUtf8(data), DEFAULT_UDP_PORT);
if (msgtype == MSG_HELLO_BROADCAST) sayHello(sender, DEFAULT_UDP_PORT);
emit peerListAdded(mPeers[sender.toString()]);
}
break;
case MSG_GOODBYE:
emit peerListRemoved(mPeers[sender.toString()]);
mPeers.remove(sender.toString());
break;
case MSG_HELLO_PORT_BROADCAST:
case MSG_HELLO_PORT_UNICAST:
data.remove(0, 1);
qint16 port = *((qint16*) data.constData());
data.remove(0, 2);
if (data != getSystemSignature()) {
mPeers[sender.toString()] = Peer(sender, QString::fromUtf8(data), port);
if (msgtype == MSG_HELLO_PORT_BROADCAST) sayHello(sender, port);
emit peerListAdded(mPeers[sender.toString()]);
}
break;
}
}
// ----------------------------------------------
void PeerServer::run() {
linger linger_opt = { 1, 0 }; // Linger active, timeout 0
setsockopt(m_socket, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof(linger_opt));
listen(m_socket, 20);
while (true) { // server loop
sockaddr_in client_address_structure;
socklen_t client_address_structure_size = sizeof(client_address_structure);
// accept one pending connection, waits until a new connection comes
int data_transfer_socket = accept(m_socket, reinterpret_cast<sockaddr*>(&client_address_structure), &client_address_structure_size);
if (data_transfer_socket < 0) {
ERR("Failed to open new socket for data transfer");
continue; // skip failed connection
}
// get incoming client
printClientInfo(client_address_structure);
char buf[32];
recv(data_transfer_socket, buf, 32, 0);
std::string input_str = std::string(buf);
int delimiter_index = input_str.find_first_of("#");
int client_id = std::atoi(input_str.substr(0, delimiter_index).c_str());
int dest_client_id = std::atoi(input_str.substr(delimiter_index + 1).c_str());
m_clients_map[client_id] = Peer(dest_client_id, data_transfer_socket);
INF("Client [id = %i] has connected, destination client id: %i", client_id, dest_client_id);
// send confirmation to client
std::string hello_message = "Server: connection has been established\n\0";
send(data_transfer_socket, hello_message.c_str(), hello_message.length(), 0);
handleClientMessages(client_id, data_transfer_socket); // start single thread to handle incoming data
}
}
Peer* Framework::resolveHost(const std::string& hostname)
{
IPaddress ip;
if (NET2_ResolveHost(&ip, (char*)hostname.c_str(), sendport) != -1)
{
peer.push_back(Peer(ip.host));
std::cout << "Server resolved at " << peer.back().hostname << std::endl;
return &(peer.back());
} else return NULL;
}
Peer* Framework::getCreatePeer(unsigned int host)
{
for (int i = 0; i < peer.size(); i++)
if (peer[i].host == host)
return &peer[i];
peer.push_back(Peer(host));
std::cout << "Peer connected from " << peer.back().hostname << std::endl;
return &(peer.back());
}
SOCKET P2P_connection::AcceptNewConnection()
{
SOCKET sNewConnection=TCP_connection::AcceptNewConnection();
if(sNewConnection!=INVALID_SOCKET)
{
Peer pNewPeer=Peer();
pNewPeer.sSocket=sNewConnection;
mPeers[sNewConnection]=&pNewPeer;
}
return sNewConnection;
}
Telegram::Peer Telegram::Peer::fromString(const QString &string)
{
// Possible schemes: user1234, chat1234, channel1234
if (string.length() < 5) {
return Peer();
}
bool ok = true;
switch (string.at(0).toLatin1()) {
case 'u': // user
if (string.startsWith(c_userPrefix)) {
uint userId = string.midRef(c_userPrefix.size()).toUInt(&ok);
if (ok) {
return Peer::fromUserId(userId);
}
}
break;
case 'c': // chat or channel
if (string.at(3).toLatin1() == 't') {
if (string.startsWith(c_chatPrefix)) {
uint chatId = string.midRef(c_chatPrefix.size()).toUInt(&ok);
if (ok) {
return Peer::fromChatId(chatId);
}
}
} else {
if (string.startsWith(c_channelPrefix)) {
uint channelId = string.midRef(c_channelPrefix.size()).toUInt(&ok);
if (ok) {
return Peer::fromChannelId(channelId);
}
}
}
break;
default:
break;
}
return Peer();
}
void LocalClient::ListenTaskThread::construct_peer_list() {
std::vector<struct peer_info_t> peer_list = process_peer_list_string(buffer + PTCL_HEADER_LENGTH + 1);
for (auto &it : peer_list) {
//PRINT( "peer data: id = %u, name = %s, ip_string = %s\n", it.id, it.name.c_str(), it.ip_string.c_str());
auto map_iter = peers.find(it.id);
if (map_iter == peers.end()) {
peers.insert(std::make_pair(it.id, Peer(it.id, it.name, it.ip_string, it.color)));
PRINT("Client \"%s\" (id %u) connected from %s.\n", it.name.c_str(), it.id, it.ip_string.c_str());
}
else {
if (!(map_iter->second.info == it)) {
PRINT( "warning: peer was found in the peer list, but peer_info_t discrepancies were discovered.\n");
}
}
}
}
void DuktoProtocol::handleMessage(QByteArray &data, QHostAddress &sender)
{
char msgtype = data.at(0);
switch(msgtype)
{
case 0x01: // HELLO (broadcast)
case 0x02: // HELLO (unicast)
data.remove(0, 1);
if (data != OsLib::retrieveSystemName()) {
mPeers[sender.toString()] = Peer(sender, data);
if (msgtype == 0x01) sayHello(sender);
peerListChanged();
}
break;
case 0x03: // GOODBYE
mPeers.remove(sender.toString());
peerListChanged();
break;
}
}
//----< test stub >--------------------------------------------
void main() {
Channel ch("Channel", Peer(8081, "127.0.0.1", 8080));
MockMessenger mess(ch);
Message m;
std::cout<<"\n Reading from run.bat..";
// test binary message here
m.fromFile("../run.bat");
std::cout<<"\n Message length: "<< m.length()
<<"\n Block size: "<< m.blockSize()
<<"\n Block number: "<< m.size()
<<"\n Message name: "<< m.fileName();
mess(m); // use messenger to process message
// test string message here
Message m2;
std::cout<<"\n Testing string message..";
m2.fromString("Test string message");
std::cout<<"\n Message length: "<< m.length()
<<"\n Block size: "<< m.blockSize()
<<"\n Block number: "<< m.size()
<<"\n Message name: "<< m.fileName();
mess(m2);
std::cout<<"\n\n";
}
Discovery::Announce Discovery::Announce::fromBinary(const QByteArray &data) {
Announce rc;
if (data.startsWith(QByteArray("BSYNC\0", 6))) {
libtorrent::entry e = libtorrent::bdecode(data.begin()+6, data.end());
libtorrent::entry::dictionary_type dict = e.dict();
MessageType m = (MessageType) dict.at("m").integer();
std::string peerId = dict.at("peer").string();
std::string shareHash = dict.at("share").string();
PeerAddress localAddress, externalAddress;
if (dict.count("la")) {
localAddress = PeerAddress::fromBinary(dict.at("la").string());
}
if (dict.count("a")) {
externalAddress = PeerAddress::fromBinary(dict.at("a").string());
}
rc = Announce(Secret::fromShareHash(shareHash), Peer(QByteArray(peerId.data(), peerId.length()), localAddress, externalAddress));
}
return rc;
}
Handshake::Handshake(Gateway& gateway,Handler& handler,Entity& entity) : ServerSession(0,0,Peer(handler),RTMFP_SYMETRIC_KEY,RTMFP_SYMETRIC_KEY,(Invoker&)handler),
_gateway(gateway) {
(bool&)checked=true;
memcpy(_certificat,"\x01\x0A\x41\x0E",4);
RandomInputStream().read((char*)&_certificat[4],64);
memcpy(&_certificat[68],"\x02\x15\x02\x02\x15\x05\x02\x15\x0E",9);
// Display far id flash side
EVP_Digest(_certificat,sizeof(_certificat),(unsigned char *)entity.id,NULL,EVP_sha256(),NULL);
}
ServerConnection::ServerConnection(Handler& handler,Session& handshake) : ServerSession(0,0,Peer(handler),NULL,NULL,(Invoker&)handler),_handshake(handshake),_connected(false) {
RandomInputStream().read((char*)peer.id,ID_SIZE);
}
void MiracBroker::OnTimeout(uint timer_id) {
Peer()->OnTimerEvent(timer_id);
}
Handshake::Handshake(Gateway& gateway,DatagramSocket& socket,ServerData& data) : Session(0,0,Peer(SocketAddress()),RTMFP_SYMETRIC_KEY,RTMFP_SYMETRIC_KEY,socket,data),
_gateway(gateway),_signature("\x03\x1a\x00\x00\x02\x1e\x00\x81\x02\x0d\x02",11) {
memcpy(_certificat,"\x01\x0A\x41\x0E",4);
RandomInputStream().read((char*)&_certificat[4],64);
memcpy(&_certificat[68],"\x02\x15\x02\x02\x15\x05\x02\x15\x0E",9);
// Display far id flash side
UInt8 id[32];
EVP_Digest(_certificat,sizeof(_certificat),id,NULL,EVP_sha256(),NULL);
INFO("Id of this cumulus server : %s",Util::FormatHex(id,32).c_str());
}
void Server::doNetworking()
{
grapple_message *message;
while (grapple_server_messages_waiting(server))
{
message = grapple_server_message_pull(server);
switch (message->type)
{
case GRAPPLE_MSG_NEW_USER:
peer[message->NEW_USER.id] = Peer(grapple_server_client_address_get(server, message->NEW_USER.id));
std::cerr << "client connected from " << peer[message->NEW_USER.id].name << std::endl;
break;
case GRAPPLE_MSG_USER_NAME:
peer[message->USER_NAME.id].name = message->USER_NAME.name;
break;
case GRAPPLE_MSG_USER_MSG:
{
grapple_user id = message->USER_MSG.id;
Buffer buf((char*)message->USER_MSG.data, message->USER_MSG.length);
switch (buf.getType())
{
case READY:
peer[id].ready = true;
if (peer.size() > 1) {
bool ready = true;
for (std::map<grapple_user, Peer>::iterator i = peer.begin(); i != peer.end(); ++i)
{
if (!(*i).second.ready)
{
ready = false;
break;
}
}
if (ready)
startGame();
}
break;
case PADDLEMOVE:
{
unsigned int time = buf.popInt();
peer[id].player->move(buf.popDouble(), buf.popDouble(), time);
Vec2f pos = peer[id].player->getPosition();
Buffer sbuf(PADDLEPOSITION);
sbuf.pushId(id);
sbuf.pushDouble(pos.y);
sbuf.pushDouble(pos.x);
sendPacket(sbuf, false);
}
break;
case SERVE_BALL:
peer[id].player->detachBall(ballspeed);
break;
case PAUSE_REQUEST:
togglePause(true, true);
std::cout << "Player " << peer[id].name << " paused the game." << std::endl;
break;
case RESUME_REQUEST:
togglePause(false, true);
std::cout << "Player " << peer[id].name << " resumed the game." << std::endl;
break;
}
break;
}
case GRAPPLE_MSG_USER_DISCONNECTED:
std::cout << "Player " << peer[message->USER_DISCONNECTED.id].name << " disconnected!" << std::endl;
shutdown();
break;
}
grapple_message_dispose(message);
}
while (grapple_client_messages_waiting(loopback))
{
message=grapple_client_message_pull(loopback);
switch (message->type)
{
case GRAPPLE_MSG_NEW_USER_ME:
{
localid = message->NEW_USER.id;
peer[localid].player = new Player(this, peer[localid].name, FRONT, field.getLength()/2.0f);
player.push_back(peer[localid].player);
peer[localid].player->attachBall(&ball[0]);
output.addMessage(Interface::YOU_SERVE);
peer[localid].ready = true;
state = WAITING;
}
break;
}
grapple_message_dispose(message);
}
}
bool Host::update(Time timeout)
{
ENetEvent event;
bool status = true;
enet_uint32 ms = (enet_uint32) (timeout * 1000.0);
while (enet_host_service((ENetHost*) m_object, &event, ms) > 0)
{
switch (event.type)
{
case ENET_EVENT_TYPE_CONNECT:
{
char name[2048];
enet_address_get_host(&(event.peer->address), name, sizeof(name) - 1);
name[sizeof(name) - 1] = '\0';
TargetID peerID;
if (isClient())
peerID = SERVER;
else
peerID = m_clientIDs.allocateID();
m_peers.push_back(Peer(event.peer, peerID, name));
event.peer->data = &(m_peers.back());
if (m_observer)
m_observer->onPeerConnected(m_peers.back());
break;
}
case ENET_EVENT_TYPE_DISCONNECT:
{
const Peer* peer = static_cast<Peer*>(event.peer->data);
for (auto p = m_peers.begin(); p != m_peers.end(); p++)
{
if (&(*p) == peer)
{
uint32 reason;
if (peer->m_disconnecting)
reason = peer->m_reason;
else
reason = event.data;
if (m_observer)
m_observer->onPeerDisconnected(*p, reason);
m_clientIDs.releaseID(p->targetID());
m_peers.erase(p);
break;
}
}
if (isClient())
status = false;
event.peer->data = nullptr;
break;
}
case ENET_EVENT_TYPE_RECEIVE:
{
if (m_observer)
{
if (Peer* peer = static_cast<Peer*>(event.peer->data))
{
PacketData data(event.packet->data,
event.packet->dataLength,
event.packet->dataLength);
m_observer->onPacketReceived(peer->targetID(), data);
}
}
enet_packet_destroy(event.packet);
break;
}
case ENET_EVENT_TYPE_NONE:
{
// This removes a useless warning by Clang
break;
}
}
}
enet_host_flush((ENetHost*) m_object);
m_allocated = 0;
return status;
}
