Forum AG-Software News

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

no_email@example.com (Alex) — Wed, 10 Apr 2024 13:45:35 GMT

also, the URI you supply seems to be a BOSh endpoint, not the Websocket endpoint of your server.

Alex

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

no_email@example.com (Alex) — Wed, 10 Apr 2024 13:34:09 GMT

1) can you get the Xml logs as described in the docs here?
https://xmppdotnet.org/docs/logging/

2) you should use a bare Jid without resource.
3) Have you tried to connect with the console sample program from the Github repo?

Alex

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

Re: Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Alex) — Tue, 04 Oct 2022 14:36:30 GMT

demo licenses are valid for 30 days. You can use it to verify if it solves your problem. When you move that code to production then you must use a valid license, otherwise your production code will stop working after some days.

Alex

Re: Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Bhush.bhadane) — Tue, 04 Oct 2022 14:32:59 GMT

Hi Alex,
Thank you for reply.

Can we use this license on our production environment?

Re: Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Alex) — Tue, 04 Oct 2022 13:53:13 GMT

I assume your license is not valid for the latest builds. Please get a demo license from here for your tests:
https://www.ag-software.net/matrix-xmpp-sdk/request-demo-l…

Alex

Re: Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Bhush.bhadane) — Tue, 04 Oct 2022 12:22:18 GMT

Hi Alex,

We upgraded nuget to the latest 2.1.0.8.

After upgrading we are getting following error on XmppClient.Open()

System.InvalidOperationException: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.
   at System.Windows.Forms.Form.ShowDialog(IWin32Window owner)
   at System.Windows.Forms.Form.ShowDialog()
   at Matrix.License.LicenseManager.CheckLicense()
   at Matrix.XmppStream.Open()
   at Matrix.Xmpp.Client.XmppClient.Open()

Do we need to update the License as well when we upgrade to latest MatriX nuget ?
If so can you please help.

Re: Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Bhush.bhadane) — Thu, 29 Sep 2022 08:23:01 GMT

Thank you Alex!

As suggested we will update to latest Nuget Package version 2.1.8 and will verify if its working.

Re: Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Alex) — Thu, 29 Sep 2022 08:06:49 GMT

There is no specific document for this.
The code you posted above is correct.

In previous days it was called old style TLS/SSL when StartTLS was preferred. It became popular again now because compared to StartTLS it saves roundtrips and therefore setting up the stream is faster. And these days its called direct TLS. But its exactly the same.
We have not renamed the property in legacy Matrix.

Alex

Re: Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Bhush.bhadane) — Thu, 29 Sep 2022 07:58:04 GMT

Where can I find the document related to direct TLS ?

Re: Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Alex) — Thu, 29 Sep 2022 07:25:11 GMT

This is not the latest. Please update and try again.
There was work done for direct TLS in the recent releases.

Alex

Re: Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Bhush.bhadane) — Thu, 29 Sep 2022 07:14:52 GMT

Using 2.1.0.5

Re: Unable to connect to CISCO Finesse secure port 5223

no_email@example.com (Alex) — Thu, 29 Sep 2022 06:59:37 GMT

Are you using the latest release of Matrix?

Alex

Unable to connect to CISCO Finesse secure port 5223 (How to use TLS 1.2 from Matrix)

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

Re: Matrix XMMP - How to retrieve stanza from archived messages.

no_email@example.com (Anastasis Ksenos) — Fri, 15 Apr 2022 08:29:53 GMT

Yes you were right. Using the XEP-0313 I have managed to retrieve it. Thank you for your help.

Re: Matrix XMMP - How to retrieve stanza from archived messages.

no_email@example.com (Alex) — Thu, 14 Apr 2022 11:20:02 GMT

Hello Anastasis,

it looks to me like you are using the older and deprecated extension:
XEP-0136: Message Archiving

But I was suggesting to use:
XEP-0313: Message Archive Management

And see there in example 17 how the server would send you the original message under the tag:
https://xmpp.org/extensions/xep-0313.html#results

Alex

Re: Matrix XMMP - How to retrieve stanza from archived messages.

no_email@example.com (Anastasis Ksenos) — Thu, 14 Apr 2022 09:07:27 GMT

Hello Alex,

Thank you for the quick response. I studied the extension but I am not sure how to implement it. Let my share my code

   public void RetrieveArchivedMessages(string with)
        {
            var query = new Matrix.Xmpp.MessageArchiving.List()
            {
                With = new Matrix.Jid(with),
                ResultSet = new Matrix.Xmpp.ResultSetManagement.Set()
            };
 
            var request = new Matrix.Xmpp.Client.Iq
            {
                Type = Matrix.Xmpp.IqType.Get,
                Query = query
            };
 
            request.GenerateId();
 
            this.Client.IqFilter.SendIq(request, RetrieveSessionsListCallback);
        }
 
        private void RetrieveSessionsListCallback(object sender, IqEventArgs e)
        {
            if (e.Iq.Type != Matrix.Xmpp.IqType.Result)
                return;
 
            var sessions = e.Iq.Element<Matrix.Xmpp.MessageArchiving.List>();
            if (sessions == null || sessions.Elements<Matrix.Xmpp.MessageArchiving.Chat>().Count() == 0)
                return;
 
            foreach (var session in sessions.Elements<Matrix.Xmpp.MessageArchiving.Chat>())
                RetrieveChatSession(session);
        }
 
        private void RetrieveChatSession(Matrix.Xmpp.MessageArchiving.Chat session)
        {
            if (session == null)
                return;
 
            var query = new Matrix.Xmpp.MessageArchiving.Retrieve()
            {
                With = session.With,
                Start = session.Start,
                ResultSet = new Matrix.Xmpp.ResultSetManagement.Set { Maximum = 100 }, 
            };
 
            var request = new Matrix.Xmpp.Client.Iq()
            {
                Type = Matrix.Xmpp.IqType.Get,
                Query = query
            };
 
            request.GenerateId();
 
            this.Client.IqFilter.SendIq(request, RetrieveSessionMessagesCallback);
        }
 
        private void RetrieveSessionMessagesCallback(object sender, IqEventArgs e)
        {
            if (e.Iq.Type != Matrix.Xmpp.IqType.Result)
                return;
 
            var chat = e.Iq.Element<Matrix.Xmpp.MessageArchiving.Chat>();
            if (chat == null)
                return;
 
            var items = chat.GetItems();
            if (items == null)
                return;
 
            var start = chat.Start;
            var list = new System.Collections.Generic.List<String>();
 
            foreach (Matrix.Xmpp.MessageArchiving.MessageItem message in items)
            {
                AddMessage(message, start, list);
            }
        }
 
        private void AddMessage(Matrix.Xmpp.MessageArchiving.MessageItem message, DateTime startTime, System.Collections.Generic.List<String> list)
        {
            if (message == null)
                return;
 
            var from = message.Jid?.Bare ?? "me";
            list.Add(message.Body + message.TimeStamp.ToString());
        }

The Matrix.Xmpp.MessageArchiving.MessageItem class does not contain a stanza property.

I get the following response which does not contain the message stanza property. As I mentioned in my previous post the server does store the message stanza at the ofMessageArchive table but how we can retrieve it ?

 type="result" id="MX_5" from="esmaster@ast-pc.soft.gr" to="esmaster@ast-pc.soft.gr/AST-PC/9788" xmlns="jabber:client">
   xmlns="urn:xmpp:archive" with="esdev@ast-pc.soft.gr" start="2022-04-13T11:57:58.855Z">
     secs="0" jid="esdev@ast-pc.soft.gr">
      >hello>
    >
     secs="4" jid="esdev@ast-pc.soft.gr">
      >test archive>
    >
     secs="20" jid="esdev@ast-pc.soft.gr">
      >???? ????????>
    >
     secs="17" jid="esdev@ast-pc.soft.gr">
      >???? ????????.xlsx>
    >
     xmlns="http://jabber.org/protocol/rsm">
       index="0">0>
      >3>
      >4>
    >
  >
>

Re: Matrix XMMP - How to retrieve stanza from archived messages.

no_email@example.com (Alex) — Wed, 13 Apr 2022 14:25:59 GMT

Hello Anastasis,

I think what you are looking for is the following extension:
XEP-0313: Message Archive Management

Can you study the extension and let me know if this is what you are looking for?
When you have problems building the packets from the extension with MatriX then please let me know.

Alex

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]

Re: General stability question

no_email@example.com (Alex) — Mon, 07 Mar 2022 10:39:34 GMT

Quote by OliverHall:
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);

how does your predicate look?

A predicate is usually used when the packet you send has a success or failure reply. It building a request/response pattern.
For joining a Muc room there is no immediate success/failure reply from the server. Many people send it without predicate as fire and forget.

The code I was referring to in my previous message is setting up a predicate to monitor incoming presence packets.
Joining a MUC room is just sending a Presence packet to the room. And when this succeeds the rooms sends you back the presence of all participants. This is what I take here as the success criteria. Even when no other participants are in the room yet, then the server needs to send back your own participation (presence) for this room. So at least 1 presence packet should come back to you.

public async Task<XmppXElement> EnterRoomAsync(Jid jid, string nick)
{
    var createRoomStanza = CreateEnterRoomStanza(jid, nick, null, false, null);
 
    Func<XmppXElement, bool> predicate = e =>
        e.OfType<Presence>()
        && e.Cast<Presence>().From.Equals(jid, new BareJidComparer());
 
    return await XmppClient.SendAsync(createRoomStanza, predicate, 10000, CancellationToken.None).ConfigureAwait(false);
}

Alex

Re: General stability question

no_email@example.com (Alex) — Mon, 07 Mar 2022 10:14:26 GMT

Hello Oliver,

MatriX vNext works fine on Xamarin. We have many users of it on Xamarin. and we have hundreds of users worldwide using it in many different applications on all kind of platforms.

Some hints for Xamarin development:
When MatriX vNext was first released we decided to use the great DotNetty networking stack which offers great extensibility and high performance, also for server applications. But DotNetty development seems to be abandoned by the developers and also support seems non existing in the GitHug pages and other channels. Also in Mono which is being used by Xamarin there have been some TLS issues with DotNetty.
Because of the reasons above we replaced the DotNetty networking stack with standard .NET sockets and websockets. We did this at the same time as we added .Net5 compatibility.
You can find the latest and stable code for this in the net5 branch here:
https://github.com/matrix-xmpp/matrix-vnext/tree/net5

Also recently I decided to rename MatriX vNext to XmppDotNet. Because there always has been confusion between MatriX and vNext and also with the Matrix chat protocol which is not related to XMPP. You can find pre-release packages for XmppDotNet on Nuget. All the sources will be made open on GitHub soon. Currently XmppDotNet is based on vNext`s net5 branch. Only the namespaces and packet names were changed.

For joining a GroupChat please look at the MucManager here in the sample code:
https://github.com/matrix-xmpp/matrix-vnext/blob/net5/exam…
This code will be extended soon and moved to XmppDotNet

MatriX is active in development. With the name change to XmppDortNet you can expect more activity on NuGet soon again.
But also XMPP is a stable protocol since 2 decades. Unless there are bugs or new extensions requested by users there is not really a reason for pushing new packages. Most of the recent changes are related to netCore, because there were many changes since the initial 1.0 release.

I am aware that documentation could be better. The forum here also offers a lot of help and I am always trying to offer quick help here. So when more questions come up then just ask.
The website repo for XmppDotNet will be made public as well soon. So help for docs from the community is welcome.

Alex

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

Re: Xamarin iOS - DotNetty.Transport.Channels.ClosedChannelException

no_email@example.com (pcharlton@carbonlabs.co.uk) — Tue, 30 Nov 2021 09:50:33 GMT

np - thank you for your help!

Re: Xamarin iOS - DotNetty.Transport.Channels.ClosedChannelException

no_email@example.com (Alex) — Tue, 30 Nov 2021 09:49:49 GMT

Nuget packages from CI are currently on the MyGet feed where you can find instructions for here:
https://matrix-xmpp.io/docs/install-from-nuget/

They should go soon to Nuget as well. But we have not decided yet on the package name. Because this should also replace all legacy MatriX packages in the future.
With the replacement of DotNetty a major redesign was required. Which means the API also changed a bit. You cannot just replace the library. I suggest to take a look at the code and samples as well.

Alex

Re: Xamarin iOS - DotNetty.Transport.Channels.ClosedChannelException

no_email@example.com (pcharlton@carbonlabs.co.uk) — Tue, 30 Nov 2021 07:40:43 GMT

Okay, I'll do that. Does that branch go to a nuget repository or is it a build locally kind of thing?

Paul.

Re: Xamarin iOS - DotNetty.Transport.Channels.ClosedChannelException

no_email@example.com (Alex) — Mon, 29 Nov 2021 17:12:05 GMT

Hey Paul,

you can check if the KeepAliveHandler is terminating fine when you close your connection.
Apart from that I am highly suggesting that you switch to the latest code in the net5 branch on Github. Because DotNetty seems to be not in development anymore-

See also:
https://github.com/matrix-xmpp/matrix-vnext/tree/net5

Alex

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.

Re: Finesse Notification

no_email@example.com (Alex) — Fri, 12 Nov 2021 09:01:00 GMT

It looks like you are using BOSH as transport layer. And according to the exception there seems to be a SSL/TLS issue with your server.
When you are using an invalid Tls certificate for some reason then you can handle it yourself for BOSH connections with the .NET ServicePointManager.ServerCertificateValidationCallback.
By default connections with invalid and untrusted certificates get rejected in .NET

Finesse Notification (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

Re: Dictionary key problem on reconnect

no_email@example.com (Alex) — Tue, 02 Nov 2021 13:51:50 GMT

I was assuming that the new connection gets a new instance of this handler, and therefore a new dictionary.
If this is not the case then we may need to clear the dictionary on reconnect.