void handleLeaveMessage(char* inBuffer, int size, char** outBuffer, int *outSize)
{
//Create a Leave message
Leave *l = new Leave();
//Decode leave message
l->decode(inBuffer, size);
//Search the users list for nickname
bool deleted = false;
pthread_mutex_lock(&userListMutex);
for(vector<Join*>::iterator it = users.begin(); it != users.end(); ++it)
{
Join *user = *(it);
//Remove nickname if it exists
if (strcmp(l->getNickname(), user->getNickname()) == 0)
{
users.erase(it);
deleted = true;
break; //Erasing messes up iteration, so may as well just break out
}
}
pthread_mutex_unlock(&userListMutex);
//Create appropriate confirm message
Confirm *c = new Confirm();
c->setResponse(deleted);
//Encode this message and return
(*outSize)=c->encode(outBuffer);
delete l;
delete c;
}
void handleJoinMessage(char* inBuffer, int size, char** outBuffer, int *outSize)
{
//Create a Join message
Join *j = new Join();
//Decode buffer into join message
j->decode(inBuffer, size);
printf("Nickname: %s\n", j->getNickname());
//Search the users list for nickname
//If the name exits do not add
bool accept = true;
pthread_mutex_lock(&userListMutex);
for(vector<Join*>::iterator it = users.begin(); it != users.end(); ++it)
{
Join *user = *(it);
if (strcmp(j->getNickname(), user->getNickname()) == 0)
{
//Exact match
accept = false;
}
}
pthread_mutex_unlock(&userListMutex);
if (accept)
{
users.push_back(j);
}
else
{
delete j;
}
//Respond with confirm message
Confirm *c = new Confirm();
c->setResponse(accept);
//Encode the message into the outbuffer and
//Set the outsize
(*outSize)=c->encode(outBuffer);
delete c;
}
void handleNewMessage(char* inBuffer, int size, char** outBuffer, int *outSize)
{
//Create a Chat Message
ChatMessage *m = new ChatMessage();
//Decode Chat Message
m->decode(inBuffer, size);
//Search the users list for nickname
bool found = false;
pthread_mutex_lock(&userListMutex);
for(vector<Join*>::iterator it = users.begin(); it != users.end(); ++it)
{
Join *user = (*it);
//Remove nickname if it exists
if (strcmp(m->getSender(), user->getNickname()) == 0)
{
found = true;
}
}
pthread_mutex_unlock(&userListMutex);
//If the name exists add the name and message to the messages list
if (found)
{
char* message = new char[strlen(m->getSender()) + 2 + strlen(m->getMessage()) + 1]; //sender + ": " + message + null
sprintf(message, "%s: %s", m->getSender(), m->getMessage()); //easier than dealing with strcpy
pthread_mutex_lock(&messageListMutex);
messageList.push_back(message);
pthread_mutex_unlock(&messageListMutex);
}
//Create appropriate confirm message
Confirm *c = new Confirm();
c->setResponse(found);
//Encode this message and return
(*outSize)=c->encode(outBuffer);
delete m;
delete c;
}
void ChatClient::on_joinButton_clicked()
{
Join *j;
Confirm *c;
INet4Address *servaddr;
Connection *myConnection;
char* buffer; //for encoded messages
int bytesToSend;
int bytesToReceive;
int bytesReceived;
//Get the strings out of the address, port and nickname
//boxes and convert to strings;
QString qip = ui.addresLine->text();
QString qport = ui.portLine->text();
QString qnick = ui.nicknameLine->text();
//Create new connection objects
servaddr = new INet4Address(qip.toLatin1().data(),qport.toInt());
myConnection = new Connection(servaddr);
//Connect to server
if(myConnection->createSocket() < 0)
{
printf("Socket Error\n");
return;
}
if(myConnection->connectSocket() < 0)
{
printf("Connect Error\n");
delete(myConnection);
delete(servaddr);
return;
}
//Make a join message
j = new Join();
j->setNickname(qnick.toLatin1().data());
//Send join message (as bytes)
bytesToSend = j->encode(&buffer);
printf("Buffer: %s, Nick: %s ",buffer, j->getNickname());
myConnection->writeSize(bytesToSend);
myConnection->writen(buffer,bytesToSend);
delete(buffer);
//Read response - take action!
//Read byte count
bytesToReceive = myConnection->readSize();
buffer = new char[bytesToReceive];
//Read message
bytesReceived=myConnection->readn(buffer,bytesToReceive);
if(bytesReceived < bytesToReceive)
printf("Server response truncated!");
//Convert to message (confirm)
c = new Confirm();
c->decode(buffer,bytesToReceive);
//Destroy socket
myConnection->closeSocket();
//check if nick accepted
if(c->getResponse()==true)
{
nickAccepted = true;
ui.addresLine->setEnabled(false);
ui.portLine->setEnabled(false);
ui.nicknameLine->setEnabled(false);
ui.joinButton->setEnabled(false);
//Turn on the timer
timer->start();
}
else
{
nickAccepted = false;
ui.nicknameLine->setText(tr("Rejected!"));
}
delete myConnection;
delete servaddr;
}