I am trying to connect to dialogic xms server using autobahn WebSockets:
As read I need to add a protocol rtcweb
This is my code :
String uri = "ws://myUrl:port";
WebSocketConnection ws = new WebSocketConnection();;
wsObserver = new WebSocketObserver();
String[] protocols = {"rtcweb"};
try {
ws.connect(new URI(uri), protocols, wsObserver, new WebSocketOptions() );
} catch (WebSocketException e) {
e.printStackTrace();
} catch (URISyntaxException e) {
e.printStackTrace();
}
But when i add the protocol rtcweb I get this onClose; and the connection still didn't open :
Code: CONNECTION_LOST. Reason: WebSockets connection lost
Related
I'm trying to have my android app to be able to send and receive xmpp message using smack but it does not work and the connect command does not return. I have seen several code example but Smack has new versions and the syntax has changed so I might be doing something wrong :
in my build.graddle file I use :
compile "org.igniterealtime.smack:smack-android-extensions:4.3.0"
compile "org.igniterealtime.smack:smack-tcp:4.3.0"
I'm trying to send a message from myaccount321#xabber.org to myaccount456#xabber.org
I'm trying to connect using hot-chilli.net (Idon't mind using some other server))
everything seems to go well until connection.connect() after which the script does not return without triggering any exception.
Please tell me what I'm doing wrong
TIA
public void sendxmpp(){
XMPPTCPConnectionConfiguration config = null;
try {
XMPPTCPConnectionConfiguration.Builder configbuilder = XMPPTCPConnectionConfiguration.builder();
configbuilder.setUsernameAndPassword("myaccount321","myaccount321pw");
DomainBareJid serviceName = JidCreate.domainBareFrom("hot-chilli.net");
configbuilder.setServiceName(serviceName);
configbuilder.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled)
configbuilder.setHost("jabber.hot-chilli.net");
configbuilder.setPort(8222);
config=configbuilder.build();
AbstractXMPPConnection connection = new XMPPTCPConnection(config);
try {
connection.connect();
}
catch (SmackException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
catch (XMPPException e) {
e.printStackTrace();
}
catch (InterruptedException e) {
e.printStackTrace();
}
connection.login();
ChatManager chatManager = ChatManager.getInstanceFor(connection);
EntityBareJid jid = JidCreate.entityBareFrom("myaccount321pw#xabber.org");
Chat chat = chatManager.createChat(jid);
chat.sendMessage("Hello");
}
catch (Exception e) {
}
}
OK I got it, the connection process has to be done in its own thread.
I’m developing XMPP client using smack 4.2.3. Using ejabberd as an XMPP server on linux platform.
Using following code to send file:
public static void sendFile(String path, String description){
String sFqdn = currentUser.getFqdn();
if(sFqdn.equals(null)) return;
String node = XmppStringUtils.parseLocalpart(sFqdn);
String domain = XmppStringUtils.parseDomain(sFqdn);
String resource = XmppStringUtils.parseResource(sFqdn);
try {
EntityFullJid fqdn = entityFullFrom(node, domain, resource);
OutgoingFileTransfer transfer = FileTransferManager.getInstanceFor(connection).createOutgoingFileTransfer(fqdn);
transfer.sendFile(new File(path), description);
} catch (SmackException e) {
e.printStackTrace();
} catch (XmppStringprepException e) {
e.printStackTrace();
}
}
and to receive:
if(fileTransferManager == null){
fileTransferManager = FileTransferManager.getInstanceFor(connection);
fileTransferManager.addFileTransferListener(new FileTransferListener() {
#Override
public void fileTransferRequest(final FileTransferRequest request) {
// Accept it
IncomingFileTransfer transfer = request.accept();
try {
transfer.recieveFile(new File(dir_path+request.getFileName()));
} catch (SmackException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
});
}
});
}
sometimes it successfully sends a file between users, but most of the time i get this XMPP error:
D/SMACK: RECV (1): <iq xml:lang=‘en’ to=‘bob#domain/122573506394002920791746’ from=‘tom#domain/126676407739368221821682’ type=‘set’ id=‘VdzEA-77’><si xmlns=‘http: //jabber .org/protocol/si’ id=‘jsi_8874207690796615693’ mime-type=‘image/png’ profile=‘http ://jabber .org/protocol/si/profile/file-transfer’><desc>test file</desc></file><feature xmlns=‘http ://jabber .org/protocol/feature-neg’><x xmlns=‘jabber:x:data’ type=‘form’><field var=‘stream-method’ type=‘list-single’><option><value>http ://jabber .org/protocol/bytestreams</value></option><option><value>http ://jabber .org/protocol/ibb</value></option></field></x></feature></iq><r xmlns=‘urn:xmpp:sm:3’/>
D/SMACK: SENT (1): <iq to=‘tom#domain/126676407739368221821682’ id=‘VdzEA-77’ type=‘error’><error type=‘cancel’><service-unavailable xmlns=‘urn:ietf:params:xml:ns:xmpp-stanzas’/></error></iq>
In ejabberd config file I’ve successfully enabled the module “mod_proxy65”
One reason I can think of is that it might happening due to continuous presence changed by the receiver, that changes its resource.
Although I’m keeping the track of presence in Roster’s presenceChanged() method but still no success. I’m wondering if there is any way in smack to connect to server with a static resource?
One more thing, is there any example for HTTP_FILE_UPLOAD (XEP-0363), I can’t find any in smacks official documentation.
After discussion at ignite realtime's forum, I found out that I was hitting a bug.
A work around to this bug is forced in-band byte stream.
Setting FileTransferNegotiator.IBB_ONLY to true did the trick for me.
Please take a look at line 76 in FileTransferNegotiator class as well.
I need a print a receipt from a receipt printer(network printer) via my android application which is developed by 4.2 version.
is Android 4.2 support printing from the network printer?
can any one please point me to a correct tutorial.
Thanks
device connected to a network will communicate via their IP and Ports / sockets.
try
{
Socket sock = new Socket("IP", port);
PrintWriter oStream = new PrintWriter(sock.getOutputStream());
oStream.println("");
oStream.println("");
oStream.close();
sock.close();
}
catch (UnknownHostException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
how to print :
private void doPrint() {
PrintManager printManager = (PrintManager) getActivity().getSystemService(Context.PRINT_SERVICE);
printManager.print("My document", new CustomPrintDocumentAdapter(getActivity()), null);
}
where CustomPrintDocumentAdapter extendsPrintDocumentAdapter
and more info about prnting Android Devlprs
more details Refer.
I've been trying to implement a simple socket communication between two Android emulators but just can't seem to get it.
My server:
public void run() {
if (SERVERIP != null) {
try {
serverStatus.setText("My IP: " + SERVERIP);
serverSocket = new ServerSocket(6798);
serverStatus.setText("ServerSocket Created");
}
catch(Exception e) {
e.printStackTrace();
}
try {
while (true) {
serverStatus.setText("waiting for client");
Socket client = serverSocket.accept();
serverStatus.setText("Connected.");
BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
String line = in.readLine();
serverStatus.setText(line);
in.close();
client.close();
}
}
catch(Exception e) {
e.printStackTrace();
}
}
else
serverStatus.setText("Couldn't detect internet connection.");
}
My Client:
try {
InetAddress ina = InetAddress.getByName("10.0.2.2");
socket = new Socket(ina, 6789);
}
catch (Exception e) {
e.printStackTrace();
}
try {
PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), true);
out.println("Hey Server!");
dispText.setText("sent");
}
catch (Exception e) {
e.printStackTrace();
}
The Client side goes on to display the message "sent" however the Server does not move beyond "waiting for client" (stuck on the blocking accept()).
I've used telnet on my Windows machine to redirect port 6789 to 6798 on the server emulator's console. I've also tried turning off my firewall and the other suggestions posted on the similar questions asked here. Please help as just can't seem to get it and feel like I'm making a very stupid mistake.
Also, can anyone please tell me how it is possible for the Client to move beyond the Socket creation code line if the Server is still stuck on accept(). Or, does it not matter to the client that the Server isn't responding as long as it is listening on the port??
Android emulators are placed behind a virtual firewall/router by design, and cannot see each other, even when they are on the same network. The "Using Network Redirection", as well as "Interconnecting Emulator Instances" part of Google's doc on the emulator explains how to communicate with an emulator instance.
As for your last question. Use the empty constructor for socket, and then use the connect call with a specified timeout.
I have a Bluetooth server listening for incoming connection, on the Laptop.
Android is a client and wants to connect to PC.
What's wrong?
I can connect first time and send data to PC. When I turn off the Android Activity and start it again, connect function passes, but PC does not register new connection. When I try sending the data, android system logs following:
05-16 13:11:17.091: ERROR/BluetoothEventLoop.cpp(102): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/30064/hci0/dev_50_63_13_CB_52_96
What works?
If I change server's UUID, on the server and on the client, it will work again first time I try connection. Consequent tries do not work.
Server code:
/** Waiting for connection from devices */
private void waitForConnection() {
// retrieve the local Bluetooth device object
LocalDevice local = null;
StreamConnectionNotifier notifier;
StreamConnection connection = null;
// setup the server to listen for connection
try {
local = LocalDevice.getLocalDevice();
local.setDiscoverable(DiscoveryAgent.GIAC);
UUID uuid = new UUID("af29e59088cc11e1b0c40800200c9a56", false);
System.out.println(uuid.toString());
String url = "btspp://localhost:" + uuid.toString() + ";name=ThinBTClient";
notifier = (StreamConnectionNotifier)Connector.open(url);
} catch (Exception e) {
e.printStackTrace();
return;
}
// waiting for connection
while(true) {
try {
System.out.println("Wait Thread: Waiting for connection...");
connection = notifier.acceptAndOpen();
System.out.println("Got connection");
Thread processThread = new Thread(new ProcessConnectionThread(connection));
processThread.start();
} catch (Exception e) {
e.printStackTrace();
return;
}
}
}
Client code:
BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
UUID SPP_UUID = UUID.fromString("af29e590-88cc-11e1-b0c4-0800200c9a56");
try {
btSocket = device.createRfcommSocketToServiceRecord(SPP_UUID);
mBluetoothAdapter.cancelDiscovery();
btSocket.connect();
outStream = btSocket.getOutputStream();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Any ideas?
Update:
I tested the same code on another laptop, Toshiba/Win7 and code works without a problem. So I suspect this is something with drivers. I will try updating.