Develop Reference

android client Not able to authorize signalR request using bearer-token

I am trying to connect signalR from the android client. I have already setup signalR hub and its working properly with javascript client on the browser. javascript client able to sent bearer-token and on the server side, I am able to get user identity.
But android java client is not able to send bearer token on. I am using https://github.com/SignalR/java-client library (As I am not using SIgnalR-core so not using latest SIgnalR core library)
connection = new HubConnection(serverUrl);
connection.getHeaders().put("Authorization","Bearer XYZ");
proxy = connection.createHubProxy(hubName);
When I run this code, I got an error
java.lang.InterruptedException: Operation was canceled
But when I don't send AUthorization header with the request then on server-side SIgnalR OnConnected() method called successfully.
The issue seems to be with sending Authorization header with the request.
For reference, the following is code to show how token authentication is implemented on the server-side
app.Map("/signalr", map =>
{
map.UseCors(CorsOptions.AllowAll);
map.UseOAuthBearerAuthentication(new OAuthBearerAuthenticationOptions()
{
Provider = new QueryStringOAuthBearerProvider()
});
var hubConfiguration = new HubConfiguration
{
Resolver = GlobalHost.DependencyResolver,
};
map.RunSignalR(hubConfiguration);
});
ConfigureAuth(app);
I have tried calling it by removing authorization from the server. Then it called successfully. But not works when called with Authorization header.
When I tried connection without Authorization then on server-side OnCOnnected method called but Context. Identity is null.
android Java code for connecting to SignalR client
Platform.loadPlatformComponent(new AndroidPlatformComponent());
// Create Connection
connection = new HubConnection(serverUrl);
connection.getHeaders().put("Authorization","Bearer XYZ");
// Create Proxy
proxy = connection.createHubProxy(hubName);
// Establish Connection
ClientTransport clientTransport = new
ServerSentEventsTransport(connection.getLogger());
SignalRFuture<Void> signalRFuture = connection.start(clientTransport);
try {
signalRFuture.get();
} catch (InterruptedException e) {
return false;
} catch (ExecutionException e) {
return false;
}
return true;

If you are using Websocket, try this
https://github.com/doctorcareanywhere/java-client
build signalr-client-sdk and import the jar to your project
eg.
implementation files('libs/signalr-client-sdk.jar')

how detect if the message fails on XMPP Smack to Android?

I making a android chat app. Im use the api level 23, the Xmpp Smack lib version 4.1.8, and on server I use ejabberd, version 16.06.
I use this code to build a XMPP connection.
(TIMEOUT = 5000)
private void buildConnection() {
XMPPTCPConnectionConfiguration.Builder builder = XMPPTCPConnectionConfiguration.builder()
.setServiceName(mServiceName)
.setHost(mServiceName)
.setConnectTimeout(TIMEOUT)
.setResource("Smack")
.setUsernameAndPassword(mUsername, mPassword)
.setSendPresence(true)
.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);
mConnection = new XMPPTCPConnection(builder.build());
mConnection.setPacketReplyTimeout(TIMEOUT);
chatManager = ChatManager.getInstanceFor(mConnection);
chatManager.addChatListener(this);
PingManager pingManager = PingManager.getInstanceFor(mConnection);
pingManager.setPingInterval(5);
pingManager.registerPingFailedListener(this);
ReconnectionManager reconnectionManager = ReconnectionManager.getInstanceFor(mConnection);
reconnectionManager.enableAutomaticReconnection();
mConnection.addConnectionListener(this);
if (mConnection != null) {
DeliveryReceiptManager.getInstanceFor(mConnection).addReceiptReceivedListener(new ReceiptReceivedListener() {
#Override
public void onReceiptReceived(String fromJid, String toJid, String receiptId, Stanza receipt) {
updateMessageStatusReceived(receipt);
Log.i(TAG, "Confirmation stanza Got: " + receipt);
}
});
}
}
(the updateMessageStatusReceived(receipt) method is only to refresh the view).
after that, I connect and authenticate.
Everthing is normal, but when the connection is down, I need to resend the failed messages when the connection is restored. I didn't find any solution or event in Smack to detected if a message fails. Sometimes the delay of confirmation server stanza is high, and my app assumes that message fails but don't, and the other side receive many times the same message.
I build a Message object and send using this code:
try {
Chat chat = chatManager.createChat(chatMessage.getJid());
chat.sendMessage(message);
} catch (SmackException.NotConnectedException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
When the connection is lost and I send message, no one exception is throw.
my question is: How I know the message realy fail, to try again?
Thanks, and sorry about the english.

Incorrect encoding exception when connecting to FCM using Smack Library

I am trying to connect to FCM using the smack library:
Here's what I've tried. It works, but I get an exception when the connection tries to login.
new Thread(new Runnable(){
XMPPTCPConnectionConfiguration.Builder configBuilder = XMPPTCPConnectionConfiguration.builder();
private Handler umm;
#Override
public void run() {
configBuilder.setSecurityMode(XMPPTCPConnectionConfiguration.SecurityMode.disabled );
configBuilder.setServiceName("fcm-xmpp.googleapis.com");
configBuilder.setHost("fcm-xmpp.googleapis.com");//MAYBE PROBLEM HERE??
configBuilder.setPort(5236);
configBuilder.setCompressionEnabled(false);
configBuilder.setSendPresence(true);
configBuilder.setSocketFactory(SSLSocketFactory.getDefault());
InterfaceClass.FCMconnection = new XMPPTCPConnection(configBuilder.build());
umm = yes;
try {
InterfaceClass.FCMconnection.connect();
Log.v("pony", "white horse");
//InterfaceClass.FCMloggin.start();
android.os.Message y4 = android.os.Message.obtain();
y4.what = LOGINTOFCM;
umm.sendMessage(y4);
//the rest of the thread is just exception handling in catch clauses
Once my handler receives the message I attempt to login with the connection
like this:
try { FCMconnection.login("senderId#gcm.googleapis.com","SERVER_KEY");
Log.d("black","r2d2");
} catch (XMPPException e) {//exception thrown here
e.printStackTrace();
Log.d("black","maity "+e);
I get the following excecption:
"smack.sasl.SASLErrorException: SASLError using X-OAUTH2: incorrect- encoding"
Now from the documentation it says clearly to implement SASL plain mechanism,
but I don't know how? Here's what the documentation says:
"The connection has two important requirements:
You must initiate a Transport Layer Security (TLS) connection. Note that CCS doesn't currently support the STARTTLS extension.
CCS requires a SASL PLAIN authentication mechanism using #gcm.googleapis.com (FCM sender ID) and the Server key as the password, where the sender ID and Server key are the values you gathered when configuring your client app. See the client documentation for your platform for information on obtaining these credentials."
Does anybody have any idea what could be causing this exception? How should I connect to FCM with the smack library?
Thank you for any advice.

As per documentation connecting to FCM over XMPP protocol needs:
1) TLS connection in transport layer, to achieve this create SSLContext using TLS protocol extension
2) Plain SASL protocol, make sure "smack-sasl-javax-4.1.8.jar" is integrated into your build setup. This took me lot of time to figure out
3) Host, service name and port number are correct(refer code snippet below)
Below code snippet works perfectly for me:
SSLContext sslContext = null;
try {
sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, null, null);
} catch (Exception e) {
//Failed to get default ssl context with TLS enabled... something can't proceed further
}
XMPPTCPConnectionConfiguration.Builder config = XMPPTCPConnectionConfiguration.builder();
config.setConnectTimeout(CONNECTION_TIMEOUT);
config.setSendPresence(true);
config.setCustomSSLContext(sslContext);
config.setSecurityMode(ConnectionConfiguration.SecurityMode.disabled);
config.setServiceName("gcm.googleapis.com");
config.setHost("fcm-xmpp.googleapis.com");
config.setPort(5236);//not production server
config.setDebuggerEnabled(true);
config.setCompressionEnabled(true);
config.setSocketFactory(sslContext.getSocketFactory());
(mConnection = new XMPPTCPConnection(config.build())).addConnectionListener(ConnectionSession.this);
mConnection.setPacketReplyTimeout(REPLY_TIMEOUT);
mConnection.connect();
mConnection.login(userID, password); //use your app server credential here
Smack version 4.8.1 implemented and tested from openfire setup.
Hope this help someone!!

How to attach POST variables to socket.io connection?

I have a webchat application which is running on Node.js and Socket.io. After user logins on main homepage port 80, he gets redirected to port 3000 (chat application) along with POST data containing his ID, username etc... On chat application page it validates details and registers user as new client.
However, now I am building android chat application and I get immediately disconnected from chat because basically android client fails validation since there is no POST data attached.
How can I add POST data along with connection request?
Here is a code that does it all in android:
try {
IO.Options opts = new IO.Options();
opts.forceNew = true;
final Socket socket = IO.socket("http://host:3000", opts);
socket.on(Socket.EVENT_CONNECT, new Emitter.Listener(){
#Override
public void call(Object... args){
socket.emit("mobile_ping", sf.getTextValue(MainActivity.this, R.id.editText));
}
});
socket.connect();
} catch (Exception e) {
Log.d("ERR", String.valueOf(e));
}

Smack API giving error while logging into Tigase Server setup locally

I am currently developing android XMPP client to communicate with the Tigase server setup locally.Before starting development on Android I am writing a simple java code on PC to test connectivity with XMPP server.My XMPP domain is my pc name "mwbn43-1" and administrator username and passwords are admin and tigase respectively.
Following is the snippet of the code I am using
class Test {
public static void main(String args[])throws Exception
{
System.setProperty("smack.debugEnabled", "true");
XMPPConnection.DEBUG_ENABLED = true;
ConnectionConfiguration config = new ConnectionConfiguration("mwbn43-1", 5222);
config.setCompressionEnabled(true);
config.setSASLAuthenticationEnabled(true);
XMPPConnection con = new XMPPConnection(config);
// Connect to the server
con.connect();
con.login("admin", "tigase");
Chat chat = con.getChatManager().createChat("aaphadke#mwbn43-1",
new MessageListener() {
public void processMessage(Chat chat, Message message) {
// Print out any messages we get back to standard out.
System.out.println("Received message: " + message);
}
});
try {
chat.sendMessage("Hi!");
}
catch (XMPPException e) {
System.out.println("Error Delivering block");
}
String host = con.getHost();
String user = con.getUser();
String id = con.getConnectionID();
int port = con.getPort();
boolean i = false;
i = con.isConnected();
if (i)
System.out.println("Connected to host " + host + " via port " + port + " connection id is " + id);
System.out.println("User is " + user);
con.disconnect();
}
}
When I run this code I get following error
Exception in thread "main" Resource binding not offered by server:
at org.jivesoftware.smack.SASLAuthentication.bindResourceAndEstablishSession(SASLAuthenticatio n.java:416) at org.jivesoftware.smack.SASLAuthentication.authenticate(SASLAuthentication.java:331)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:395)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:349)
at Test.main(Test.java:26)
I found this articles on the same problem but no concrete solution
here
Could anyone please tell me the solution for this problem.I checked the XMPPConnection.java file in the Smack API and it looks the same as given in the link solution.
Thanks,
Ameya

I found the solution to the problem as given in here
These are the lines I should add before I connect to the server
ConnectionConfiguration config = new ConnectionConfiguration("mwbn43-1", 5222);
config.setSASLAuthenticationEnabled(false);
XMPPConnection xmpp = new XMPPConnection(config);
Thanks for all your help

I think this is a problem with library, a bug. It does not handle protocol correctly. Before the user is authenticated there is no point of sending resource bind, hence it is not advertised by the server. The client should not complain about it.