Example #1
0
//ircManager takes the connection to the IRC server and then coordinates the
//communication between the irc server, and the active IRCClients
func ircManager(ircConn irc.IRCConn, newClients chan *ircClient) {
	fmt.Println("*** Entering ircManager ***")
	defer fmt.Println("*** Leaving ircManager ***")

	var clients []*ircClient

	fromServer := make(chan irc.Message)
	fromClient := make(chan irc.Message)
	errChan := make(chan error)
	quitChan := make(chan bool)

	//Listen for incoming messages form server
	go ircServerListener(ircConn, fromServer, errChan, quitChan)

	for {
		select {
		case msg := <-fromServer:
			//Log it,
			log.Println(msg)

			//Repsond if it's a ping
			if len(msg) >= 4 && msg[0:4] == "PING" {
				var end string = msg[4:].String()
				ircConn.Write(irc.NewMessage("PONG" + end))
				//break
			}

			//...and send it to all clients
			for k := 0; k < len(clients); k++ {
				client := *clients[k]
				err := client.SendMessage(msg)

				if err != nil {
					stopClientListener(&client)
					client.Close()
					clients = deleteNthItem(clients, k)
					k-- //Account for socket deletion in slice
					fmt.Println("*** Disconnected irc Client. ", len(clients), "remaining.")
				}
			}
		//Received a message from the server
		case msg := <-fromClient:
			err := ircConn.Write(msg)
			if err != nil {
				fmt.Println("Error writing to server: ", err)
			}

		//A new client has connected
		case client := <-newClients:
			clients = append(clients, client)
			startClientListener(client, fromClient)
			fmt.Println("*** Accepted the ", len(clients), " client connection ***")
		}
	}

	quitChan <- true
}
Example #2
0
//ircServerListener continuallyu listens for messages from the IRC server.
//When one is receives, it sends the message into the msg channel.
func ircServerListener(ircConn irc.IRCConn, msgChan chan<- irc.Message, errChan chan<- error, quitChan <-chan bool) {
	fmt.Println("*** Entering ircListenerClient ***")
	defer fmt.Println("*** Leaving ircListenerClient ***")
	for {

		select {
		case <-quitChan:
			return
		default:
			msg, err := ircConn.Read()
			if err != nil {
				errChan <- err
				return
			}

			msgChan <- msg
		}
	}
}