Forum AG-Software News

working with xmppdotnet library in .net core 3.1 (wpf)

no_email@example.com (lokeshdotnet) — Wed, 10 Apr 2024 11:20:40 GMT

I am working with the XMPPDotNet library in a WPF framework .NET 3.1 Core. I want to create chat management system using xmpp. So, i used xmppdotnet library . I am providing all the details in the XMPPClient as mentioned in the documentation, but neither the connection is being established nor am I able to add to a group or send a message. Could you please guide me on how to accomplish these tasks? If there are any mistakes in the code, please correct them and let me know.
this is my code

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Net.Mail;
using System.Net.WebSockets;
using System.Reactive.Linq;
using System.Reflection;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Xml.Linq;
using XmppDotNet;
using XmppDotNet.Extensions.Client.Message;
using XmppDotNet.Extensions.Client.Presence;
using XmppDotNet.Extensions.Client.Roster;
using XmppDotNet.Transport;
using XmppDotNet.Transport.Socket;
using XmppDotNet.Transport.WebSocket;
using XmppDotNet.Xmpp;
using XmppDotNet.Xmpp.Client;
 
namespace xmppdemo_new
{
    /// 
    /// Interaction logic for MainWindow.xaml
    /// 
    public partial class MainWindow : Window
    {
        XmppClient xmppClient;
        int websocketRetries = 0; // Track number of WebSocket attempts
 
        public MainWindow()
        {
            InitializeComponent();
        }
 
        public async void Connect()
        {
            try
            {
                // Attempt WebSocket connection first (preferred)
                xmppClient = new XmppClient(
                  conf =>
                  {
                      conf.UseWebSocketTransport(new StaticNameResolver(new Uri("wss://chat-new.educrypt.ai:5443/bosh")));
                      conf.AutoReconnect = true;
                  }
                )
                {
                    Jid = "740@chat-new.educrypt.ai:5443/bosh",
                    Password = "740",
                    Tls = true
                };
 
                await xmppClient.ConnectAsync();
                websocketRetries = 0; // Reset retries on successful connection
                                      // Connection established using WebSocket
                                      // Rest of your code using xmppClient...
            }
            catch (WebSocketException ex) when (ex.Message.Contains("status code '200'"))
            {
                websocketRetries++;
 
                // Check if retries exceed a limit (optional)
                if (websocketRetries > 3)
                {
                    MessageBox.Show("WebSocket connection failed repeatedly, using TCP socket instead.");
                }
 
                // Fallback to TCP socket
                xmppClient = new XmppClient(
                  conf =>
                  {
                      conf.Transport = new SocketTransport(); // Use SocketTransport for TCP
                      conf.AutoReconnect = true;
                     
                  }
                )
                {
                    Jid = "740@chat-new.educrypt.ai",
                    Password = "740",
                    Tls = true,
                };
 
                await xmppClient.ConnectAsync();
                // Connection established using TCP socket
                // Rest of your code using xmppClient...
            }
 
            // Rest of your connection established logic...
            xmppClient
              .StateChanged
              .Where(s => s == SessionState.Binded)
              .Subscribe(async v =>
              {
                  // request roster (contact list).
                  // This is optional, but most chat clients do this on startup
                  var roster = await xmppClient.RequestRosterAsync();
 
                  // send our online presence to the server
                  await xmppClient.SendPresenceAsync(XmppDotNet.Xmpp.Show.Chat, "free for chat");
 
                  // send a chat message to user2
                  await xmppClient.SendGroupChatMessageAsync("1712213988412@conference.chat-new.educrypt.ai", "This is a test",true);
 
                   
              });
        }
 
        private async void Button_Click(object sender, RoutedEventArgs e)
        {
            var vcardRequest = new VcardIq { Type = IqType.Get, To = "740@chat-new.educrypt.ai" };
 
            // send the request and await the response
            var resultIq = await xmppClient.SendIqAsync(vcardRequest);
 
            // check for success or failure
            if (resultIq.Type == IqType.Result)
            {
                // server returned a result (sucsess)
                // => process the vCard here
            }
            else if (resultIq.Type == IqType.Error)
            {
                // server returned an error
                // => handle error
            }
        }
 
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            Connect();
        }
    }
}

thanks ,please solve my

Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Bhush.bhadane) — Thu, 29 Sep 2022 05:45:17 GMT

We are trying to connect to CISCO finesse secure port 5223 using Matrix Library for Notifications. Using Pidgin it is working prfectly but from our application its not.

When we comare wireshark logs for both then we can see that Pidgin request using TLS1.2 where as Matrix request using TLSv1.
So as per the post in this forum we are setting the TLS12 explicitely but its still not working.

Here is the code:

this.xmppClient.SetUsername(username);
this.xmppClient.Password = password.ToUnsecureString();
this.xmppClient.SetXmppDomain(domain);
this.xmppClient.Port = 5223;
this.xmppClient.OldStyleSsl = true;
this.xmppClient.TlsProtocols = SslProtocols.Tls12;

Can you help us what we are missing here so that matrix will use the TLS 1.2

Matrix XMMP - How to retrieve stanza from archived messages.

no_email@example.com (Anastasis Ksenos) — Wed, 13 Apr 2022 13:48:11 GMT

Hello,

We are using OpenFire version 4.7.1 with the Monitoring Service installed. Following the code which I found here :https://forum.ag-software.net/thread/2140-YAMAQ-Yet-anothe… I have managed to retrieve archived messages body, however we have many scenarios which message body is not enough. We want to retrieve MessageArchive stanza as well. By executing the above query at the server database we find out that message stanza is stored at the data table but is there a way to retrieve it using matrix xmpp ? Any help would be appreciated.

SELECT TOP (1000) [messageID]
      ,[conversationID]
      ,[fromJID]
      ,[fromJIDResource]
      ,[toJID]
      ,[toJIDResource]
      ,[sentDate]
      ,[stanza]
      ,[body]
      ,[isPMforJID]
FROM [OpenFire].[dbo].[ofMessageArchive]

General stability question

no_email@example.com (OliverHall) — Sun, 06 Mar 2022 17:24:44 GMT

Hi,
I'm trying to write an XMPP client using Xamarin.Forms and MatriX vNext looked like a good place to get a spring board into getting something working.

I have to admit, I've found the docs/samples (or rather lack of) makes the process pretty painful. Finding some sample code to join a MUC room was luck, more than following any documentation pointers and the API is so LINQ heavy, without any API docs, I've found it very much a trial and error exercise to get things working. I hope I'm just missing some rich repository of information, but I've looked and searched Google and there doesn't appear to be anything?

So - I did eventually get a client to join a group chat, and post a message using native Windows .Net Framework.

The same code moved to Xamarin.Forms and targeting an Android platform nearly works, and I can see my client joining the MUC room, but the SendAsync call never returns (eventually times out) (the offending line is shown below).

await _xmppClient.SendAsync(createRoomStanza, predicate, 10000, CancellationToken.None);

Should the library work in this context or am I flogging the proverbial "dead horse" with MatriX vNext?

I see that the last NuGet update is from 2020; is this project dormant now? XMPP support for .Net seems thin on the ground sadly! Any other suggestions? I don't need anything particularly fancy.

Many thanks,
Oliver

Xamarin iOS - DotNetty.Transport.Channels.ClosedChannelException

no_email@example.com (pcharlton@carbonlabs.co.uk) — Mon, 29 Nov 2021 17:03:19 GMT

Hi,
I'm getting this exception generated intermittently I think when the app/phone goes into sleep mode. It's ahrd to recreate but my error log system is pickig them up.

I've added some code that tries to monitor when the app goes to sleep and disconnect the XmppClient which I think has caught a lot of these incidents, but some still seem to be slipping through.

It seems to be caused by the KeepAliveHandler. I was wondering if there was anythign I could lookat from the calling code (in the pipeline perhaps) or whether this was mode something that needed handling in the underlying code.

Xamarin Exception Stack:
DotNetty.Transport.Channels.ClosedChannelException: I/O error occurred.
at Matrix.Network.Handlers.KeepAliveHandler+<>c__DisplayClass4_0.b__0 (System.Object state) <0x1075f9230 + 0x001bf> in <2b86b82b658d4c92bfd52eb72504d791#ce8736efb5b41d616940f6b40b6f6dce>:0
at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.b__7_1 (System.Object state) <0x1016545d8 + 0x00067> in <218435b0f6654ac1ab0cdd176f26b9bd#ce8736efb5b41d616940f6b40b6f6dce>:0
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context (System.Object state) <0x1015e9790 + 0x0005b> in <218435b0f6654ac1ab0cdd176f26b9bd#ce8736efb5b41d616940f6b40b6f6dce>:0
at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) <0x1015e2cf8 + 0x0015f> in <218435b0f6654ac1ab0cdd176f26b9bd#ce8736efb5b41d616940f6b40b6f6dce>:0
at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) <0x1015e2c3c + 0x00043> in <218435b0f6654ac1ab0cdd176f26b9bd#ce8736efb5b41d616940f6b40b6f6dce>:0
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem () <0x1015e96f0 + 0x00047> in <218435b0f6654ac1ab0cdd176f26b9bd#ce8736efb5b41d616940f6b40b6f6dce>:0
at System.Threading.ThreadPoolWorkQueue.Dispatch () <0x1013bc5c0 + 0x001e7> in <218435b0f6654ac1ab0cdd176f26b9bd#ce8736efb5b41d616940f6b40b6f6dce>:0
at ObjCRuntime.Runtime.ThreadPoolDispatcher (System.Func`1[TResult] callback) <0x1025c1fa4 + 0x00053> in <149d342757e54bfaa120bb42afe18369#ce8736efb5b41d616940f6b40b6f6dce>:0
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () <0x1015e9588 + 0x00077> in <218435b0f6654ac1ab0cdd176f26b9bd#ce8736efb5b41d616940f6b40b6f6dce>:0

All the best,
Paul.

Finesse Notification

no_email@example.com (uzair2299) — Fri, 12 Nov 2021 06:21:52 GMT

I am new to MatriX. I want to get pidgin notifications/events in my C# .NET console application.

With this code implementation, I am getting exception M_xmppClient_OnError event (BOSH exception ,Message = "The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.")

XmppClient m_xmppClient = new XmppClient();
m_xmppClient.Transport = Matrix.Net.Transport.Bosh;
m_xmppClient.Hostname = "abc.com";
m_xmppClient.Username = "user_name";
m_xmppClient.Password = "password";
m_xmppClient.Port = 5222;
 
m_xmppClient.SetXmppDomain("https://abc.com");
m_xmppClient.AutoRoster = true;
m_xmppClient.AutoPresence = true;
m_xmppClient.OnMessage += M_xmppClient_OnMessage;
m_xmppClient.OnReceiveXml += M_xmppClient_OnReceiveXml;
m_xmppClient.OnBind += M_xmppClient_OnBind;
m_xmppClient.OnValidateCertificate += M_xmppClient_OnValidateCertificate;
m_xmppClient.OnLogin += M_xmppClient_OnLogin;
m_xmppClient.OnError += M_xmppClient_OnError;
m_xmppClient.OnAuthError += M_xmppClient_OnAuthError;
m_xmppClient.Uri = new System.Uri("https://abc.com:7552/http-bind/");
m_xmppClient.KeepAliveInterval = 60;
m_xmppClient.Open();
 
PubSubManager mgr = new PubSubManager(m_xmppClient);
mgr.OnEvent += Mgr_OnEvent;
 
private void M_xmppClient_OnAuthError(object sender, Matrix.Xmpp.Sasl.SaslEventArgs e)
{
    Console.WriteLine(e.Exception);
}
 
private void M_xmppClient_OnError(object sender, Matrix.ExceptionEventArgs e)
{
    Console.WriteLine(e.Exception);
}
 
private void M_xmppClient_OnLogin(object sender, Matrix.EventArgs e)
{
    Console.WriteLine(e.State);
}
 
private void M_xmppClient_OnValidateCertificate(object sender, Matrix.CertificateEventArgs e)
{
    e.AcceptCertificate = true;
}
 
private void M_xmppClient_OnBind(object sender, Matrix.JidEventArgs e)
{
 
    Console.WriteLine("On bind:  " + e.Jid);
}
 
private void Mgr_OnEvent(object sender, MessageEventArgs e)
{
    Console.WriteLine(e.Message);
}
 
private void M_xmppClient_OnReceiveXml(object sender, Matrix.TextEventArgs e)
{
    Console.WriteLine(e.Text + e.State);
}
 
private void M_xmppClient_OnMessage(object sender, MessageEventArgs e)
{
    Console.WriteLine(e.Message.Value);
    Console.WriteLine(e.Message.Body);
}

Any help with code implementation. Thank you

Dictionary key problem on reconnect

no_email@example.com (humba) — Tue, 02 Nov 2021 08:22:37 GMT

I recently saw this running through my console. I was running my APP that connects to Cisco CIMP using XMPP, and connectivity was lost because I was debugging. My app is written to reconnect if the server is still up, which is the case here (it's just that if I take too long proceeding in the debugger, the connection interrupts).

So, I got this stacktrace

15:39:55.246 Unable to connect to srvccx12.nxodev.intra: An item with the same key has already been added. Key: System.Func`2[Matrix.Xml.XmppXElement,System.Boolean] at at System.Collections.Generic.Dictionary`2.TryInsert(TKey key, TValue value, InsertionBehavior behavior)
   at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value)
   at Matrix.Network.Handlers.XmppStanzaHandler.Handle(Func`2 predicate, Action`2 action)
   at Matrix.Network.Handlers.XmppStanzaHandler.SendAsync[T](Func`1 sendTask, Func`2 predicate, Int32 timeout, CancellationToken cancellationToken)
   at Matrix.Network.Handlers.XmppStanzaHandler.SendAsync[T1,T2](String s, Int32 timeout, CancellationToken cancellationToken)
   at Matrix.XmppConnection.SendAsync[T1,T2](String data, Int32 timeout, CancellationToken cancellationToken)
   at Matrix.XmppConnection.SendStreamHeaderAsync(Int32 timeout, CancellationToken cancellationToken)
   at Matrix.XmppConnection.SendStreamHeaderAsync(CancellationToken cancellationToken)
   at Matrix.XmppClient.ConnectAsync(CancellationToken cancellationToken)
   at Matrix.XmppClient.ConnectAsync()
   at CiscoXmppLib.XmppConnector.Login(Boolean retryOnError, Boolean aquireLock) in D:\Personal\Documents\Visual Studio 2012\Projects\CiscoFinesseTest\CiscoXmppLib\XmppConnector.cs:line 446

The last line is my code, a simple ConnectAsync

var connected = await xmppClient.ConnectAsync().ConfigureAwait(false);

I haven't looked at the Matrix code yet, but that shouldn't be happening, right?

Matrix vNext Console Client Error

no_email@example.com (nir) — Tue, 31 Aug 2021 14:15:19 GMT

I'm running the Console Client of Matrix vNext Net5 Branch and I get the following:
At the call of await xmppClient.ConnectAsync();

System.IO.IOException: 'Cannot determine the frame size or a corrupted frame was received.'
This exception was originally thrown at this call stack:
    [External Code]
    Matrix.Transport.Socket.SocketTransport.InitTls(string) in SocketTransport.cs
    [External Code]
    Matrix.Transport.Socket.SocketTransport.ConnectAsync(string) in SocketTransport.cs
    [External Code]
    Matrix.XmppClient.ConnectAsync(System.Threading.CancellationToken) in XmppClient.cs
    [External Code]
    Matrix.XmppClient.ConnectAsync() in XmppClient.cs
    [External Code]
    ConsoleClient.Program.Main(string[]) in Program.cs

Thanks,
Nicholas

Xamarin Android Example Client not working

no_email@example.com (nir) — Wed, 25 Aug 2021 13:05:33 GMT

Hi, I'm trying to implement a Xamarin.Forms client using Matrix vNext.

At first I used the example Xamarin.Android MiniClientAndroid, but I got:

[libc] Access denied finding property "net.dns1"
[libc] Access denied finding property "net.dns2"
[libc] Access denied finding property "net.dns3"
[libc] Access denied finding property "net.dns4"

Then I tried using Matrix vNext, Matrix Services, Matrix Extensions nugget packages on a Xamarin Forms project.
On UWP everything works as expected.
On Android it isn't connecting and I get again:

[libc] Access denied finding property "net.dns1"
[libc] Access denied finding property "net.dns2"
[libc] Access denied finding property "net.dns3"
[libc] Access denied finding property "net.dns4"
[libc] Access denied finding property "net.dns5"
[libc] Access denied finding property "net.dns6"
[libc] Access denied finding property "net.dns7"
[libc] Access denied finding property "net.dns8"

Example of my code:

public async Task InitMessagingService()
        {
            // setup XmppClient with some properties
            XmppClient = new XmppClient
            {
                Username = "nrall",
                Password = "testtest",
                XmppDomain = "0day.im",
                // setting the resolver to use the Srv resolver is optional, but recommended
                HostnameResolver = new SrvNameResolver()
            };
 
            // connect so the server
            await XmppClient.ConnectAsync();
 
 
            //// request roster (contact list). This is optional, 
            //// but most chat clients do this on startup
            var rosterIqResult = await XmppClient.RequestRosterAsync();
 
            var rosterItems
                = rosterIqResult
                    .Query
                    .Cast<Roster>()
                    .GetRoster();
 
            // enumerate over the items and build your contact list or GUI
            foreach (var ri in rosterItems)
            {
                // we use AutoMapper here to map the XMPP
                // rosterItem to our Contact ViewModel
                var contact = ri;
                //contacts.AddOrReplace(contact, c => c.Jid == contact.Jid);
 
                // Dump some info
                Debug.WriteLine($"Jid: {ri.Jid}");
                Debug.WriteLine($"Name: {ri.Name}");
            }

Any help is greatly appreciated.
Nicholas

Ping Handler not working on vNext

no_email@example.com (humba) — Fri, 13 Aug 2021 13:55:15 GMT

Cisco's UCCX 12.6 seems to be sending me pings after a certain amount of inactivity. Then cuts my connection after 30 seconds. So I suspect, it expects a response to these pings. Is there some facility I can use to automatically respond to these requests?
I'm on vNext..

@edit: found https://forum.ag-software.net/thread/2116-Handler-for-XMPP…, where it states that the ping handler is active by default. But, in my case, no response is being sent for an inbound ping.

When I activate packet logging, I see this

15:54:38.212 0|Information|RECV:  type="get" id="116-171" from="srvccx12.nxodev.intra"
to="pmgr_agentmonitoring@srvccx12.nxodev.intra/pmgr"> xmlns="urn:xmpp:ping"/>>
15:55:08.223 0|Information|RECV: >

I'm not seeing any SEND entries, so there's no response. Do I have to register the handler somehow?

Logging in when the login itself contains an @

no_email@example.com (humba) — Mon, 28 Jun 2021 15:31:43 GMT

Has anybody managed to login when the loginname is in UPN format (userid@domain)? I'm trying to do this on a Cisco CIMP but am failing miserably. I suspect somehow my login gets turned into a userid@domain@presencedomain jid which of course is not a valid jid.

Trouble upgrading from MatriX to vNext

no_email@example.com (Reggie.Meisler) — Mon, 14 Jun 2021 23:48:43 GMT

Hey friends,

So I have been using the legacy MatriX client and have been enjoying it, but I am now looking to upgrade to MatriX vNext so that my company can purchase a commercial use license. The way the previous MatriX client was installed was by simply dropping a dll into our Unity Project source, and the person who did this installation is on longer at the company.

Based on my research, it seems like the only way to use MatriX vNext is through the use of a package manager called NuGet, but NuGet seems Windows specific and we do all of our development work on Mac. After a little digging, I was able to find a Unity-editor style client for NuGet and install the latest version of MatriX vNext!

Sadly however, after squelching all of our incompatibility errors, I now get this:

https://ibb.co/82zsvtq <- Image

Does anyone have any experience with this issue? This has me stumped.

I am considering trying to just pull in all the source code as raw files (using the MatriX source on git), including dependencies if I can't figure this out soon, but that seems so lame.

Crash in a call to onMessage code

no_email@example.com (joshuacosta) — Thu, 20 May 2021 09:32:00 GMT

Hello,

We have a problem, a crash, in our code when we receive an "OnMessage". This one:

System.IO.FileLoadException
en Logon.xmpp.xmppClient_OnMessage(System.Object, Matrix.Xmpp.Client.MessageEventArgs)
en System.EventHandler`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].Invoke(System.Object, System.__Canon)

Información de la excepción: System.Reflection.TargetInvocationException

Maybe it's a conflict with the .net platform?.

Thanks in advance
Joshua

Setting rich presence for Cisco IM&Presence

no_email@example.com (humba) — Sat, 03 Apr 2021 12:08:56 GMT

I'm using matrix.vNext with Cisco IM&P (Version 11.5, but soon 12.5, too). I can connect, set basic presence, manage roaster and get presence notifications just fine.

Where I'm having problem is rich presence. Cisco uses their own PIDF format - looks pretty much like the standard, but with some custom namespaces. Some examles can be seen in their dev guide https://d1nmyq4gcgsfi5.cloudfront.net/fileMedia/f4a5c1d3-e…

While I can send that rich presence just fine using this approach

var xmppXElement = XmppXElement.LoadXml(richPresence);
await xmppClient.SendAsync(xmppXElement).ConfigureAwait(false);

the effects it has on the presence of the logged in user isn't what I'm expecting. Has anybody gotten this to work?

Getting ClientSocket Connection request failed from sample code I downloaded

no_email@example.com (rperetz) — Fri, 26 Mar 2021 21:14:02 GMT

I got your latest demo code, the code go the OnError method with an Errror:
ClientSocket Connection request failed
what am I doing wrong?

using System;
using Matrix.Xmpp;
using Matrix.Xmpp.Client;
 
namespace SendMessage
{
    class Program
    {
        static void Main(string[] args)
        {
            var xmppClient = new XmppClient
                                 {
                                     XmppDomain = "traffictech.lan",
                                     Username = "masjab",
                                     Password = "SomePassword",
                                     Port = 1080
                                };
 
            xmppClient.OnError += new System.EventHandler<Matrix.ExceptionEventArgs>(xmppClient_OnError);
 
            xmppClient.OnRosterEnd += delegate
                                          {
                                              xmppClient.Send(new Message
                                                                  {
                                                                      To = "perron@traffictech.lan",
                                                                      Type = MessageType.chat,
                                                                      Body = "Hello World"
                                                                  });
 
                                          };
            xmppClient.Open();
            
            Console.WriteLine("Press return key to exit the application");
            Console.ReadLine();
 
            xmppClient.Close();
 
            void xmppClient_OnError(object sender, Matrix.ExceptionEventArgs e)
            {
                
                Console.WriteLine("xmppClient_OnError Fired " + e.Exception.ToString());
            }
           
 
        }
    }
}

the debug trace shows this:
[78476] InitSideBySide failed create an activation context. Error: 1814
[76588] Client Verbose: 0 :
[76588] Common model for csharp intellisense-members is cached.
[76588] Client Verbose: 0 :
[76588] Attempting to get team models for csharp intellisense-members at C:\Work\JabberMatrixSDKNET2\MatriX\samples\csharp\SendMessage\.
[76588] Client Verbose: 0 :
[76588] The path C:\Work\JabberMatrixSDKNET2\MatriX\samples\csharp\SendMessage\ does not belong to a Git repository, and cannot have any team models attached to it.
[76588] Client Verbose: 0 :
[76588] Common model for csharp intellisense-arguments is cached.
[24924] InitSideBySide failed create an activation context. Error: 1814

Troubleshooting authentication in Matrix.vNext

no_email@example.com (humba) — Fri, 19 Mar 2021 16:43:18 GMT

I'm trying to use Matrix.vNext to connect to Cisco IM & Presence.

Cisco says the login has to be done following this pattern

1) When an XMPP Client connects to Cisco Unified CM IM and Presence, the server will return
the supported SASL authentication mechanisms in in stream features:

PLAIN
CISCO_VTG_TOKEN

2) The Client will reply to these SASL offering by sending an auth element that contains the SASL
Plain mechanism and a Base64 encoding of the username and password. An example is
shown below where “AGp1bGlldABwYXNzd29yZA==” is Base64 (user: juliet, password:
password):

AGp1bGlldABwYXNzd29yZA==

3) The Cisco Unified CM IM and Presence Authentication Component will parse the Base 64
encoded Username and Password pair received from Client for the User Id and password to
search the database for a match. If there is no matching entry, Cisco Unified CM IM and
Presence will respond to Client with an Authentication Failure ERROR

4) The Cisco Unified CM IM and Presence Authentication Component will query the database for
the license status of the User. If the User is not enabled, Cisco Unified CM IM and Presence
will respond to the Client with an ERROR

5) If the Authentication Component is able to retrieve a match the Authentication Component will
reply with a SUCCESS message as follows:

I'm at the moment using the same code I'm using to connect to XMPP which works fine on Cisco Finesse

xmppClient = new XmppClient()
      {
      Username = XmppLogin,
      Password = XmppPassword,
      XmppDomain = server,
      //Resource = "web_framework",
      HostnameResolver = new SrvNameResolver(),
      };
      if (notificationConfiguration.AcceptAllCertificates)
      xmppClient.CertificateValidator = new AlwaysAcceptCertificateValidator();

Is there a way I can dump the messages being sent in/out to see what is going on behind the scenes?

I'm seeing the connection state changing from
Connected, Securing, Secure, Authenticating
then I'm getting a Matrix.AuthenticationException with this stanza

@edit: found an article about logging: https://matrix-xmpp.io/docs/logging/. It seems out-of-date though as XmppClient doesn't have a constructor using an Action

iOS Crash in when sleep

no_email@example.com (pcharlton@carbonlabs.co.uk) — Tue, 09 Mar 2021 11:39:15 GMT

Hi,
I'm getting a DotNetty exception (DotNetty.Transport.Channels.ClosedChannelException) being thrown that's causing a crash in iOS devices (not the simulator) and seems to be when the device/app wakes from (or possibly goes into) sleep.

I don't know if this is an issue in DotNetty or Matrix.

I've pasted the stack trace from App Centre in the hope that it can help?

DotNetty.Transport.Channels.ClosedChannelException: I/O error occurred.
at Matrix.Network.Handlers.KeepAliveHandler+<>c__DisplayClass4_0.b__0 (System.Object state) <0x10a6ab320 + 0x001bf> in <2b86b82b658d4c92bfd52eb72504d791#e8cc3261e5c46375b4637f546f2e9a9c>:0
at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.b__7_1 (System.Object state) <0x10537dfec + 0x00067> in <26af7b5f4340497eaece2479b9ba2eee#e8cc3261e5c46375b4637f546f2e9a9c>:0
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context (System.Object state) <0x10531321c + 0x0005b> in <26af7b5f4340497eaece2479b9ba2eee#e8cc3261e5c46375b4637f546f2e9a9c>:0
at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) <0x10530c784 + 0x0015f> in <26af7b5f4340497eaece2479b9ba2eee#e8cc3261e5c46375b4637f546f2e9a9c>:0
at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) <0x10530c6c8 + 0x00043> in <26af7b5f4340497eaece2479b9ba2eee#e8cc3261e5c46375b4637f546f2e9a9c>:0
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem () <0x10531317c + 0x00047> in <26af7b5f4340497eaece2479b9ba2eee#e8cc3261e5c46375b4637f546f2e9a9c>:0
at System.Threading.ThreadPoolWorkQueue.Dispatch () <0x1050ec530 + 0x001e7> in <26af7b5f4340497eaece2479b9ba2eee#e8cc3261e5c46375b4637f546f2e9a9c>:0
at ObjCRuntime.Runtime.ThreadPoolDispatcher (System.Func`1[TResult] callback) <0x1062902a8 + 0x00053> in <11cf1cb643154f5dbbfae722322b4d57#e8cc3261e5c46375b4637f546f2e9a9c>:0
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () <0x105313014 + 0x00077> in <26af7b5f4340497eaece2479b9ba2eee#e8cc3261e5c46375b4637f546f2e9a9c>:0

All the best,
Paul.

MatriX vNext Join MUC room

no_email@example.com (Zereges) — Tue, 09 Feb 2021 23:45:27 GMT

Hello,
I wanted to try the MatriX vNext library for writing XMPP bot. I managed to get connecting to a server working, and I can also send messages to individual users.

I would like to know how can I join room (muc) and send/recieve messages in the room.

Thanks

Upgrading from AGS_XMPP to MATRIX

no_email@example.com (Regis) — Wed, 23 Dec 2020 16:40:24 GMT

Hi,

I am working on evaluating an upgrade of our source code to use Matrix instead of AGS_XMPP.

So far, I've manage to Login without too much problem, but when I try to subscribe to a node, I get disconnected by the Xmpp server.

Here is the XML that is working (using AGS) :

using PubSubManager.Subscribe(pubsubUrl, mainJid, mainJid, noeud);

XML OUT messages  id="agsXMPP_19" type="set" to="pubsub.appli-c14-rec2s00.xxx.fr" from="gen1104n@appli-c14-rec2s00.xxx.fr/messages">
 xmlns="http://jabber.org/protocol/pubsub">
     node="/CRC/ARV/DOU/EQ01/CM_CRC_EASITEAM/Msg" jid="gen1104n@appli-c14-rec2s00.xxx.fr/messages" />
>
>

Here is the XML that is not working (using Matrix) :

using : PubSubManager.Subscribe(pubsubUrl, noeud, mainJid);

XML OUT messages  id="MX_7" to="pubsub.appli-c14-rec2s00.xxx.fr" type="set" xmlns="jabber:client">
   xmlns="http://jabber.org/protocol/pubsub">
     node="/CRC/ARV/DOU/EQ01/CM_CRC_EASITEAM/Msg" jid="gen1104n@appli-c14-rec2s00.xxx.fr/messages" />
  >
>

I'm get a OnStreamError from the Xmpp client con with the following XML :

args.Error =

 xmlns:stream="http://etherx.jabber.org/streams">
   xmlns="urn:ietf:params:xml:ns:xmpp-streams" />
>

Why is there no more the "from" tag in the subscribe ?
Could the extra xmlns="jabber:client" cause a problem ?

Any idea why I would receive "InvalidXml" ?

Thanks in advance for your help.

Régis

Does the matrix vnext has any plan to add the socks proxy support?

no_email@example.com (lampo) — Fri, 04 Dec 2020 08:51:46 GMT

I did not found the proxy setting on vnext, has any plan to implement it? Thanks

Error calling SetLicense in .net core matriX 2.1.0.8

no_email@example.com (runfastman) — Fri, 13 Nov 2020 22:04:50 GMT

I am trying to update to .net core but now when I call SetLicense I get the error listed below. I tried installing the System.Security.Cryptogropy package but it didn't help.

String lic = @"MyLicense";
Matrix.License.LicenseManager.SetLicense(lic);

(Error)
Message=Could not load type 'System.Security.Cryptography.MD5Cng' from assembly 'System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
Source=Matrix
StackTrace:
   at Matrix.Util.Hash.Md5HashBytes(Byte[] pass)
   at Matrix.License.License.Validate()
   at Matrix.License.LicenseManager.SetLicense(String lic)

Using Matrix vNext in Azure

no_email@example.com (jez9999) — Thu, 15 Oct 2020 18:12:04 GMT

We're looking to build our own XMPP server, and we're hosting our current server applications in Azure as web apps. I was hoping to stick with .NET as that's what we're using for everything else, and was wondering about the feasibility of using Matrix vNext (looking, for example, at the code here https://github.com/matrix-xmpp/matrix-vnext/blob/master/ex…) as part of a .NET Core web application hosted in Azure to provide a scalable XMPP server.

Are there any issues with this that people can foresee? Has anyone tried to do this before successfully? I see but one post mentioning this use case in the forum search I did, not providing much of an update on whether it was successful... but at least I wasn't the only one who ever considered the idea.

XmppXElementStreamObserver does not trigger with new messages

no_email@example.com (Eduardo) — Wed, 30 Sep 2020 14:51:38 GMT

Dear all,

I am trying to use the XmppXElementStreamObserver to get new messages but its does not working.

This is my code:

client.XmppXElementStreamObserver
    .Where(el => el is Matrix.Xmpp.Client.Message)
    .Subscribe(el =>
    {
        MessageBox.Show(el.ToString());
    });
 
I tried this too:
 
client.XmppXElementStreamObserver
    .Subscribe(el =>
    {
        MessageBox.Show(el.ToString());
    });

The another user is receiving my messages without problems but I am not seeing the response.

I am using the Matriz.vNext v2.4.5.

What is the problem?

Changelog for Matrix xmpp sdk

no_email@example.com (jf) — Thu, 03 Sep 2020 17:44:14 GMT

Hi,

Can you please provide the change log between 2.1.05 and 2.1.0.8? The one at the link in get started page stops at 2.1.0.5.

JF

Matrix Xmpp: Xamarin Forms issue while sending message or closing connection

no_email@example.com (sathyajithr.dev) — Thu, 30 Jul 2020 16:11:02 GMT

I am implementing chat functionality in a Xamarin forms application. Connection to the chat server, user subscription, presence subscription and even message receiving is working smoothly. But while trying to send a message or disconnect a connection, the method execution stuck and it won't be successful. Once a message is received (Sending from Gajim windows client) the execution continues from xmppClient.Send()/xmppClient.Close() calls. I tried it from both Android and iOS applications and the behavior is the same. I also tested the sample app (https://gitlab.com/matrix-xmpp/samples/-/tree/master/cshar…) and its the same behavior, method execution stuck in xmppClient.Close() and only executes further once a message is received.

I am having latest xamarin SDKs

Xamarin iOS - 13.18.3.2
Xamarin Android - 10.3.1.4

Another thing I noticed is that the same code I written works when building from another machine which is having lower version of Xamarin iOS SDK, sending message was working fine. But having issues to send message from Android app which is built from that machine. The Xamarin iOS SDK version in that machine is

Xamarin iOS - 13.6.0.12

Is there any compatibility issue with latest Xamarin SDKs? Please advise how to resolve this issue.

Below are the logs.
PS: OnSendMessage it would log as sending message, but it would get delivered and method execution continues only when a message is received in my app.

14:35:45.844 D/ChatService: XmppOnSendMessage::
14:35:46.142 D/ChatService: XmppOnXmlReceiveMessage::
14:35:46.157 D/ChatService: XmppOnXmlReceiveMessage:
14:35:46.157 D/ChatService:
14:35:46.157 D/ChatService:
14:35:46.157 D/ChatService:
14:35:46.157 D/ChatService: :
14:35:46.167 D/ChatService: XmppOnSendMessage::
14:35:46.428 D/ChatService: XmppOnXmlReceiveMessage::
14:35:47.268 D/ChatService: XmppOnSendMessage::
14:35:47.547 D/ChatService: XmppOnXmlReceiveMessage::
14:35:47.550 D/ChatService: XmppOnXmlReceiveMessage:
14:35:47.550 D/ChatService:
14:35:47.550 D/ChatService:    DIGEST-MD5
14:35:47.550 D/ChatService:    PLAIN
14:35:47.550 D/ChatService:    SCRAM-SHA-1
14:35:47.550 D/ChatService:    X-OAUTH2
14:35:47.550 D/ChatService:
14:35:47.550 D/ChatService:
14:35:47.550 D/ChatService: :
14:35:47.550 D/ChatService: XmppOnStreamFeatures:
14:35:47.550 D/ChatService:
14:35:47.550 D/ChatService:    DIGEST-MD5
14:35:47.550 D/ChatService:    PLAIN
14:35:47.550 D/ChatService:    SCRAM-SHA-1
14:35:47.550 D/ChatService:    X-OAUTH2
14:35:47.550 D/ChatService:
14:35:47.550 D/ChatService:
14:35:47.550 D/ChatService:
14:35:47.572 D/ChatService: XmppOnSendMessage:XXXXX:
14:35:47.837 D/ChatService: XmppOnXmlReceiveMessage::
14:35:47.843 D/ChatService: xmppClient_OnLogin: Matrix.EventArgs
14:35:47.844 D/ChatService: XmppOnSendMessage::
14:35:48.107 D/ChatService: XmppOnXmlReceiveMessage::
14:35:48.112 D/ChatService: XmppOnXmlReceiveMessage:
14:35:48.112 D/ChatService:
14:35:48.112 D/ChatService:
14:35:48.112 D/ChatService:
14:35:48.112 D/ChatService:
14:35:48.112 D/ChatService:
14:35:48.112 D/ChatService:
14:35:48.112 D/ChatService:
14:35:48.112 D/ChatService:
14:35:48.112 D/ChatService:
14:35:48.112 D/ChatService: :
14:35:48.127 D/ChatService: XmppOnSendMessage:
14:35:48.127 D/ChatService:
14:35:48.127 D/ChatService:    MatriX-for-Android
14:35:48.127 D/ChatService:
14:35:48.127 D/ChatService: :
14:35:48.397 D/ChatService: XmppOnXmlReceiveMessage:
14:35:48.397 D/ChatService:
14:35:48.397 D/ChatService:    jack@server.address.com/MatriX-for-Android
14:35:48.397 D/ChatService:
14:35:48.397 D/ChatService: :
14:35:48.411 D/ChatService: XmppOnSendMessage:
14:35:48.411 D/ChatService:
14:35:48.411 D/ChatService: :
14:35:48.415 D/ChatService: XmppOnSendMessage::
14:35:48.423 D/ChatService: XmppOnSendMessage:
14:35:48.423 D/ChatService:
14:35:48.423 D/ChatService: :
14:35:48.670 D/ChatService: XmppOnXmlReceiveMessage::
14:35:48.670 D/ChatService: <<<<>>>>
14:35:48.673 D/ChatService: XmppOnSendMessage::
14:35:48.673 D/ChatService: SubscribeUser sent:harry@server.address.com
14:35:48.675 D/ChatService: XmppOnXmlReceiveMessage::
14:35:48.688 D/ChatService: XmppOnXmlReceiveMessage:
14:35:48.688 D/ChatService:
14:35:48.688 D/ChatService:
14:35:48.688 D/ChatService:
14:35:48.688 D/ChatService: :
14:35:48.694 D/ChatService: XmppOnSendMessage:
14:35:48.694 D/ChatService:   chat
14:35:48.694 D/ChatService:
14:35:48.694 D/ChatService:   0
14:35:48.694 D/ChatService: :
14:35:48.697 D/ChatService: XmppOnXmlReceiveMessage::
14:35:48.700 D/ChatService: XmppOnSendMessage::
14:35:48.957 D/ChatService: XmppOnXmlReceiveMessage:
14:35:48.957 D/ChatService:
14:35:48.957 D/ChatService:   0
14:35:48.957 D/ChatService:   chat
14:35:48.957 D/ChatService:
14:35:48.957 D/ChatService: :
14:35:48.966 D/ChatService: XmppOnXmlReceiveMessage::
14:35:48.966 D/ChatService: XmppOnSendMessage::
14:35:55.333 D/ChatService: XmppOnSendMessage:
14:35:55.333 D/ChatService:   Thank you! I am over it now.
14:35:55.333 D/ChatService:
14:35:55.333 D/ChatService:
14:35:55.333 D/ChatService: :

Matrix vNext - Operation Timeout Error

no_email@example.com (dotnetnerd) — Thu, 07 May 2020 08:10:07 GMT

Hello,

xmppClient object is failing to connect to Cisco Finesse and give an error - Operation Timeout Error. Below is the code snippet. This code works fine in a console application, but same is not working from a WPF Application (4.6.1 Framework version). Not sure if i need to add any additional reference.

xmppClient = new XmppClient()
{
    Username = this._username,
    Password = this._password,
    XmppDomain = this._serverName,
    HostnameResolver = new SrvNameResolver()
};
 
xmppClient.CertificateValidator = new AlwaysAcceptCertificateValidator();
this.SubscribeForSessionStateChange();
this.SubcribeForMessageChange();
this.SubcribeForPresenceChange();
 
try
{
    await xmppClient.ConnectAsync();
}
catch (Matrix.AuthenticationException ex)
{
    OnError.Invoke(this, ex);
}
catch (Exception ex)
{
    OnError.Invoke(this, ex);
}

Matrix vNext: How to Subscribe for New Voice Call

no_email@example.com (dotnetnerd) — Mon, 13 Apr 2020 06:06:44 GMT

Hi,

I am using Matrix vNext: How do I Subscribe to get Notification for new Call? I Subscribed for /User/{AgentId}, /User/{AgentId}/Dialogs - still dont get any event on incoming call or status of change in Cisco Finesse Agent Desktop.

Enable message acknowledgment

no_email@example.com (amerts) — Mon, 30 Mar 2020 17:07:40 GMT

Hi,

I'm working on implementing a message receiving acknowledgment for the chat in Unity project. The problem is when user A sends a message to user B, user B will receive this message only when he is online or offline (when he becomes online). But if user B is disconnected, because of WIFI drop or any other reason, he won't receive the message, even after disconnect. So I decided to use XEP-0115 and XEP-0184, to fix this issue.

When I init XmppClient, I set the following flags:

Client.StreamResumption = true;
Client.StreamManagement = true;

And call RequestReceipt when I send a message

message.RequestReceipt();

Is it correct?

When I receive a message, there is xmpp:receipts" /> tag

As far as I understood it's an issue with XEP-0115 Entity Compatibility and the documentation says "Lack of ack support: The server says the receiver does not support ack, using the same message id attribute"

Please can you guide me on how to fix it?

Does the Matrix vNext implemented the XEP-0198?

no_email@example.com (lampo) — Mon, 09 Mar 2020 06:37:40 GMT

Does the Matrix vNext implemented the XEP-0198? is there any example about it?

Porting code to vNext

no_email@example.com (humba) — Mon, 03 Feb 2020 13:33:33 GMT

I have a working solution using the old matrix lib that I need to bring into the .NET core world. So I swapped out the matrix libs and now I'm flailing trying to migrate my code.

For instance, I'm using xmppClient.StreamActive to determine if an XmppClient has a connection or now. How does that translate to Matrix vNext?

Similarly, I subscribed to a variety of OnXXXX events. Going by the sample for message subscription I managed to port OnMessage and OnPresence, but there's a bunch of other events I'm still struggling with: OnClose, OnError, OnStreamError, OnXmlError, OnAuthError. How do these translate?

I'm also using the PubSubManager in the old lib and I haven't found a replacement there, either.