ClosedChannelException - Forum AG-Software

najeeb

2020-01-22, 10:08 #1

Subject: ClosedChannelException

My project type is Xamarin (Framework: .NET Standard 2.0). I need to have XMPP functionality and for this I am using the Matrix vNext library. I have already deployed ejabberd on an AWS (Ubuntu) instance. I have used independent chat clients like Pandion, Pidgin, and so on, and they're all logging in to my server fine.

When I try to log in using the same credentials like so:

            XmppClient _xmppClient = new XmppClient {
                Username = "user_id",
                Password = "password",
                XmppDomain = "example.com",
                Resource = "my_res",
                Port = 5222,
                HostnameResolver = new SrvNameResolver (),
                CertificateValidator = new AlwaysAcceptCertificateValidator (),
            };
 
            // Handlers for presence and messages here
 
            await _xmppClient.ConnectAsync ();
            await _xmppClient.SendPresenceAsync (Show.Chat, "READY");

I get the following exception:

DotNetty.Transport.Channels.ClosedChannelException: 'I/O error occurred.'

Any help will be appreciated. Thanks.

This post was edited on 2020-01-22, 10:38 by Alex.

Alex

2020-01-22, 10:40 #2

Please post your complete XML logs.
Also please take a look at this thread, I assume its the same issue:
https://forum.ag-software.net/thread/2147-Matrix-vNext-in-…

najeeb

2020-01-22, 10:50 #3

Yes Alex, I already did. I implemented the solution. Seems to be working now. Thanks for this.

najeeb

2020-01-22, 11:28 #4

Works like a breeze, Alex. Thanks for this!

Alex

2020-01-22, 11:35 #5

great, looks like we should add it to the docs and maybe create a nuget package or code repository with a patched TLS handler for Xamarin.
If you have code feel free to share here with others that may run into similar issues.

Alex

najeeb

2020-01-22, 12:40 #6

Sure Alex, will do that.