bool SocketIOClient::connect(char thehostname[], int theport) {
if (!client.connect(thehostname, theport)) return false;
hostname = thehostname;
port = theport;
sendHandshake(hostname);
return readHandshake();
}
void
AsyncCDDBPLookup::doHandshake()
{
sendHandshake();
state_ = WaitingForHandshake;
}
bool WebSocketClient::connect() {
if (_client.connect(_server, _port)) {
sendHandshake();
return readHandshake();
}
return false;
}
bool Nimbits::connectSocket(String points[], int count) {
bool result = false;
char path[256];
path[0] = '\0';
byte uuidNumber[16];
String pointJson = arrayToJson(points, count);
strcat(path, "/socket?token=");
strcat(path, _authToken.c_str());
if (count > 0) {
strcat(path, "&points=");
strcat(path, pointJson.c_str());
}
if (ethernetClient.connect(_hostname.c_str(), _port)) {
sendHandshake(path);
result = readHandshake();
}
return result;
}
bool XSocketClient::connect(char hostname[], int port) {
bool result = false;
if (_client.connect(hostname, port)) {
sendHandshake();
result = readHandshake();
}
return result;
}
bool WebSocketClient::connect() {
bool result = false;
if (_client.connect()) {
sendHandshake();
result = readHandshake();
}
return result;
}
bool SocketIOClient::connect(unsigned int id, char thehostname[], int theport) {
ID = id;
if (!client.connect(thehostname, theport)) return false;
hostname = thehostname;
port = theport;
sendHandshake(hostname);
bool ret = readHandshake();
socketHandshake();
return ret;
}
void AmpacheListEngine::run()
{
QThread::setTerminationEnabled(true);
m_stop = false;
if (m_updateSourceInfo || m_removeSourceInfo) {
return;
}
//Create media list based on engine argument and filter
QList<MediaItem> mediaList;
QString engineArg = m_mediaListProperties.engineArg();
QStringList engineFilterList = m_mediaListProperties.engineFilterList();
if (!engineFilterList.isEmpty()) {
QString server = m_mediaListProperties.filterFieldValue("server");
QString request = m_mediaListProperties.filterFieldValue("request");
m_pendingRequest["server"] = server;
m_pendingRequest["request"] = request;
if (request == "root") {
QString username = m_mediaListProperties.filterFieldValue("username");
QString key = m_mediaListProperties.filterFieldValue("key");
//Handshake
m_pendingRequest["username"] = username;
m_pendingRequest["key"] = key;
sendHandshake(server, username, key);
} else {
QString requestUrlStr = server + m_mediaListProperties.filterFieldValue("requestPath");
KUrl requestUrl(requestUrlStr);
if (!requestUrl.isEmpty()) {
QString targetFile = QString("bangarang/temp/%1").arg(QString("ampacheResult-%1-%2").arg(m_requestSignature, m_subRequestSignature));
KUrl targetUrl = KUrl(KStandardDirs::locateLocal("data", targetFile, true));
connectDownloader();
emit download(requestUrl, targetUrl);
}
}
//Start event loop to wait for feed results
exec();
} else {
//Return no results
m_mediaListProperties.summary = i18np("1 item", "%1 items", mediaList.count());
m_mediaListProperties.type = QString("Categories");
emit results(m_requestSignature, mediaList, m_mediaListProperties, true, m_subRequestSignature);
}
}
inline void OmniApp::start() {
if (mOmni.activeStereo()) {
Window::displayMode(Window::displayMode() | Window::STEREO_BUF);
}
create();
if (mOmni.fullScreen()) {
fullScreen(true);
cursorHide(true);
}
if (!bSlave) {
if(oscSend().opened()) sendHandshake();
mAudioIO.start();
}
Main::get().start();
}
// check if a target is connected, and attempt to connect if not
bool
VASTnet::validateConnection (id_t host_id)
{
// if it's message to self or already connected
if (_manager->getID () == host_id || _manager->isConnected (host_id) == true)
return true;
// resolve address of host
std::map<id_t, Addr>::iterator it = _id2addr.find (host_id);
if (it == _id2addr.end ())
return false;
IPaddr &remote_addr = it->second.publicIP;
// otherwise try to initiate connection & send handshake message
if (_manager->connect (host_id, remote_addr.host, remote_addr.port) == false)
return false;
sendHandshake (host_id);
return true;
}
//--------------------------------------------------------------
void ofxMatrixNetworkServer::update() {
//for each client lets send them a message letting them know what port they are connected on
for(int i = 0; i < getLastID(); i++){
if(isClientConnected(i)){
//if we don't have a string allocated yet: lets create one
//if(i >= storeText.size() ){
// storeText.push_back( string() );
//}
//if we don't have a string allocated yet: lets create one
if(i >= tx_valid.size() ){
tx_valid.push_back(0);
}
//we only want to update the text we have recieved there is data
string str = receive(i);
if(str == "handshake"){
ofLog(OF_LOG_NOTICE, "handshake with client " + ofToString(i));
sendHandshake(i);
tx_valid[i] = 1;
}else if(str.find_first_of("nextframe") != -1){
//ofLog(OF_LOG_NOTICE, "nextframe for client " + ofToString(i) + " - " + str);
tx_valid[i] = 2;
}else if(str == "disconnect"){
ofLog(OF_LOG_NOTICE, "disconnect client " + ofToString(i));
sendDisconnect(i);
disconnectClient(i);
tx_valid[i] = 0;
}
//if(str.length() > 0){
// storeText[i] = str;
//}
}else{
tx_valid[i] = 0;
}
}
}
void handleCloseHandshake()
{
if (recvHandshake() == MODE_COMPLETE)
sendHandshake(MODE_COMPLETE);
}
int startConnection(int port)
{
if (SendSocket != INVALID_SOCKET || RecvSocket != INVALID_SOCKET)
{
return 0;
}
WSADATA wsaData;
int iResult;
//----------------------
// Initialize Winsock
iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (iResult != NO_ERROR) {
printf("WSAStartup failed with error: %d\n", iResult);
return 0;
}
//---------------------------------------------
// Create a socket for sending data
SendSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (SendSocket == INVALID_SOCKET) {
printf("socket failed with error: %ld\n", WSAGetLastError());
closeConnection();
return 0;
}
//---------------------------------------------
// Create a socket for recving data
RecvSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (SendSocket == INVALID_SOCKET) {
printf("socket failed with error: %ld\n", WSAGetLastError());
closeConnection();
return 0;
}
//-----------------------------------------------
// Bind the socket to any address and the specified port.
SendAddr.sin_family = AF_INET;
SendAddr.sin_port = htons(port);
SendAddr.sin_addr.s_addr = htonl(INADDR_ANY);
iResult = bind(RecvSocket, (SOCKADDR *) & SendAddr, sizeof (SendAddr));
if (iResult != 0) {
wprintf(L"bind failed with error %d\n", WSAGetLastError());
closeConnection();
return 0;
}
//---------------------------------------------
// Set up the RecvAddr structure with the IP address of
// the receiver
RecvAddr.sin_family = AF_INET;
RecvAddr.sin_port = htons(port+1);
if (recvHandshake() != MODE_READY)
{
printf("Sender not ready");
closeConnection();
return 0;
}
sendHandshake(MODE_READY);
// set receive timeout to 1
if (!setTimeout(RecvSocket,-1))
{
closeConnection();
return 0;
}
return 1;
}
void GroupClient::retrieveData(GroupSocket *const /* socket */,
const Messages message,
const QVariantMap &data)
{
if (message == Messages::STATE_KICKED) {
emit messageBox(QString("You got kicked! Reason: %1").arg(data["text"].toString()));
stop();
return;
}
if (socket.getProtocolState() == ProtocolState::AwaitingLogin) {
// Login state. either REQ_HANDSHAKE, REQ_LOGIN, or ACK should come
if (message == Messages::REQ_HANDSHAKE) {
sendHandshake(data);
} else if (message == Messages::REQ_LOGIN) {
assert(!NO_OPEN_SSL);
socket.setProtocolVersion(proposedProtocolVersion);
socket.startClientEncrypted();
} else if (message == Messages::ACK) {
// aha! logged on!
sendMessage(&socket, Messages::REQ_INFO);
socket.setProtocolState(ProtocolState::AwaitingInfo);
} else {
// ERROR: unexpected message marker!
// try to ignore?
qWarning("(AwaitingLogin) Unexpected message marker. Trying to ignore.");
}
} else if (socket.getProtocolState() == ProtocolState::AwaitingInfo) {
// almost connected. awaiting full information about the connection
if (message == Messages::UPDATE_CHAR) {
emit scheduleAction(new AddCharacter(data));
} else if (message == Messages::STATE_LOGGED) {
socket.setProtocolState(ProtocolState::Logged);
} else if (message == Messages::REQ_ACK) {
sendMessage(&socket, Messages::ACK);
} else {
// ERROR: unexpected message marker!
// try to ignore?
qWarning("(AwaitingInfo) Unexpected message marker. Trying to ignore.");
}
} else if (socket.getProtocolState() == ProtocolState::Logged) {
if (message == Messages::ADD_CHAR) {
emit scheduleAction(new AddCharacter(data));
} else if (message == Messages::REMOVE_CHAR) {
emit scheduleAction(new RemoveCharacter(data));
} else if (message == Messages::UPDATE_CHAR) {
emit scheduleAction(new UpdateCharacter(data));
} else if (message == Messages::RENAME_CHAR) {
emit scheduleAction(new RenameCharacter(data));
} else if (message == Messages::GTELL) {
emit gTellArrived(data);
} else if (message == Messages::REQ_ACK) {
sendMessage(&socket, Messages::ACK);
} else {
// ERROR: unexpected message marker!
// try to ignore?
qWarning("(Logged) Unexpected message marker. Trying to ignore.");
}
}
}
void *handleClient(void *args) {
pthread_detach(pthread_self());
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL);
pthread_cleanup_push(&cleanup_client, args);
int buffer_length = 0, string_length = 1, reads = 1;
ws_client *n = args;
n->thread_id = pthread_self();
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
char buffer[BUFFERSIZE];
n->string = (char *) malloc(sizeof(char));
if (n->string == NULL) {
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
handshake_error("Couldn't allocate memory.", ERROR_INTERNAL, n);
pthread_exit((void *) EXIT_FAILURE);
}
printf("Client connected with the following information:\n"
"\tSocket: %d\n"
"\tAddress: %s\n\n", n->socket_id, (char *) n->client_ip);
printf("Checking whether client is valid ...\n\n");
fflush(stdout);
/**
* Getting headers and doing reallocation if headers is bigger than our
* allocated memory.
*/
do {
memset(buffer, '\0', BUFFERSIZE);
if ((buffer_length = recv(n->socket_id, buffer, BUFFERSIZE, 0)) <= 0){
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
handshake_error("Didn't receive any headers from the client.",
ERROR_BAD, n);
pthread_exit((void *) EXIT_FAILURE);
}
if (reads == 1 && strlen(buffer) < 14) {
handshake_error("SSL request is not supported yet.",
ERROR_NOT_IMPL, n);
pthread_exit((void *) EXIT_FAILURE);
}
string_length += buffer_length;
char *tmp = realloc(n->string, string_length);
if (tmp == NULL) {
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
handshake_error("Couldn't reallocate memory.", ERROR_INTERNAL, n);
pthread_exit((void *) EXIT_FAILURE);
}
n->string = tmp;
tmp = NULL;
memset(n->string + (string_length-buffer_length-1), '\0',
buffer_length+1);
memcpy(n->string + (string_length-buffer_length-1), buffer,
buffer_length);
reads++;
} while( strncmp("\r\n\r\n", n->string + (string_length-5), 4) != 0
&& strncmp("\n\n", n->string + (string_length-3), 2) != 0
&& strncmp("\r\n\r\n", n->string + (string_length-8-5), 4) != 0
&& strncmp("\n\n", n->string + (string_length-8-3), 2) != 0 );
printf("User connected with the following headers:\n%s\n\n", n->string);
fflush(stdout);
ws_header *h = header_new();
if (h == NULL) {
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
handshake_error("Couldn't allocate memory.", ERROR_INTERNAL, n);
pthread_exit((void *) EXIT_FAILURE);
}
n->headers = h;
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
if ( parseHeaders(n->string, n, port) < 0 ) {
pthread_exit((void *) EXIT_FAILURE);
}
if ( sendHandshake(n) < 0 && n->headers->type != UNKNOWN ) {
pthread_exit((void *) EXIT_FAILURE);
}
list_add(l, n);
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
printf("Client has been validated and is now connected\n\n");
printf("> ");
fflush(stdout);
uint64_t next_len = 0;
char next[BUFFERSIZE];
memset(next, '\0', BUFFERSIZE);
while (1) {
if ( communicate(n, next, next_len) != CONTINUE) {
break;
}
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
if (n->headers->protocol == CHAT) {
list_multicast(l, n);
} else if (n->headers->protocol == ECHO) {
list_multicast_one(l, n, n->message);
} else {
list_multicast_one(l, n, n->message);
}
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
if (n->message != NULL) {
memset(next, '\0', BUFFERSIZE);
memcpy(next, n->message->next, n->message->next_len);
next_len = n->message->next_len;
message_free(n->message);
free(n->message);
n->message = NULL;
}
}
printf("Shutting client down..\n\n");
printf("> ");
fflush(stdout);
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
list_remove(l, n);
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
pthread_cleanup_pop(0);
pthread_exit((void *) EXIT_SUCCESS);
}
ConnectionState Connection::update(double time)
{
// if CLOSED or CONNECTED, nothing happens
// if CONNECTING or HANDSHAKING, incomming packets are proccessed for update
Address sender;
int size;
switch(state) {
case CONNECTING:
// accept only connectionResponse (and get its connectionId)
while (size = socket.receive(sender,buffer, NSL_MAX_UDP_PACKET_SIZE)) {
if (size != 6) {
continue;
}
// reset buffer stream
bufferStream->resetStream(size);
if (bufferStream->read<uint16>() != applicationId) {
continue;
}
connectionId = bufferStream->read<int32>();
state = HANDSHAKING;
sendHandshake(time);
return state;
}
if (lastRequest + NSL_TIMEOUT_CLIENT_CONNECTION_REQUEST < time) {
sendConnectionRequest(time);
}
break;
case HANDSHAKING:
// accept only handshakeResponse (and get its status)
while (size = socket.receive(sender,buffer,NSL_MAX_UDP_PACKET_SIZE)) {
if (size < 7) {
continue;
}
// reset buffer stream
bufferStream->resetStream(size);
if (bufferStream->read<uint16>() != applicationId) {
continue;
}
if (bufferStream->read<uint32>() != connectionId) {
continue;
}
// process handshake response
switch (bufferStream->readByte()) {
case NSL_CONNECTION_FLAG_DISCONNECT:
state = CLOSED;
return state;
case NSL_CONNECTION_FLAG_UPDATE:
state = CONNECTED;
bufferedMessage = bufferStream->createSubreader(size - 7, true);
return state;
case NSL_CONNECTION_FLAG_COMPRESSED_UPDATE:
state = CONNECTED;
#ifdef NSL_COMPRESS
bufferedMessage = decompressStream(bufferStream);
#else
throw Exception(NSL_EXCEPTION_LIBRARY_ERROR, "NSL: Compressed update was received from server, but compression is turned of on client");
#endif
return state;
default:
throw Exception(NSL_EXCEPTION_LIBRARY_ERROR, "NSL: protocol error, received not expected data.");
}
}
if (lastRequest + NSL_TIMEOUT_CLIENT_HANDSHAKE < time) {
sendHandshake(time);
}
break;
case CLOSED:
// throw away all incomming packets so they will not mess later
while (size = socket.receive(sender,buffer,NSL_MAX_UDP_PACKET_SIZE)) {}
default:
break;
}
return state;
}
