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Getting error when opening client.
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JFulford 2015-10-07, 21:39 #1
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Subject: Getting error when opening client.
  1. static XmppClient client;
  2.         static void Main(string[] args)
  3.         {
  4.             string lic = @"sometext";
  5.             Matrix.License.LicenseManager.SetLicense(lic);
  6.             client = new XmppClient();
  7.             ServicePointManager.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true;
  8.  
  9.  
  10.             client.Username = "334";
  11.             client.Hostname = "voip";
  12.             client.Password = "9999";
  13.             client.Resource = "pbx";
  14.             client.XmppDomain = "voip";
  15.             client.OnError += client_OnError;
  16.             client.OnBeforeSasl += client_OnBeforeSasl;
  17.             client.Open();
  18.             Console.ReadLine();
  19.         }


OnError is hit and notifies me of a null reference exception.

StackTrace    "   at Matrix.Xmpp.Sasl.Processor.Digest.Step2.SupportsAuth(String qop)   at Matrix.Xmpp.Sasl.Processor.Digest.Step2..ctor(Step1 step1, SaslProcessor proc)   at Matrix.Xmpp.Sasl.Processor.Digest.DigestMd5Processor.Parse(Challenge ch)   at Matrix.SaslHandler.XmppStreamParser_OnStreamElement(Object sender, StanzaEventArgs e)   at System.EventHandler`1.Invoke(Object sender, TEventArgs e)  at Matrix.Xml.XmppStreamParser.DoRaiseOnStreamElement(XmppXElement el)"    string

Any idea what this is?
This post was edited on 2015-10-07, 21:58 by Alex.
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Alex 2015-10-07, 22:05 #2
Member since Feb 2003 · 4297 posts · Location: Germany
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It looks like there is a compatibility issue between your server and MatriX regarding the SASL DIGEST_MD5 authentication.
We have not seen such an error in many years. To see why it happens and which implementation is wrong we would need to debug against your server and look at the SASL messages.

Alex
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Alex 2015-10-08, 10:28 #3
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your complete Xml log will also help, from there we can get and parse the SASL message.
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JFulford 2015-10-08, 13:57 #4
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Would you like me to log it with WireShark or is there a simple way I can have the Matrix library log the XML messages?
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Alex 2015-10-08, 13:58 #5
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See here:
http://www.ag-software.net/matrix-xmpp-sdk/matrix-develope…
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JFulford 2015-10-08, 14:26 #6
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  1. OnSend >>>
  2. <stream:stream xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:client" to="voip" version="1.0" >
  3.  
  4. OnReceive >>>
  5. <stream:stream xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:client" from="voip" version="1.0" id="vm3r2pk03kaavvq7r0cnx1mdpndwgiec4h477p7a" xmlns:ack="http://www.xmpp.org/extensions/xep-0198.html#ns" >
  6.  
  7. OnReceive >>>
  8. <stream:features xmlns:stream="http://etherx.jabber.org/streams">
  9.  <address xmlns="http://affinix.com/jabber/address">10.0.16.145</address>
  10.  <mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl">
  11.     <mechanism>PLAIN</mechanism>
  12.     <mechanism>DIGEST-MD5</mechanism>
  13.  </mechanisms>
  14.  <auth xmlns="http://jabber.org/features/iq-auth" />
  15. </stream:features>
  16.  
  17. OnSend >>>
  18. <auth mechanism="DIGEST-MD5" xmlns="urn:ietf:params:xml:ns:xmpp-sasl" />
  19.  
  20. OnReceive >>>
  21. <challenge xmlns="urn:ietf:params:xml:ns:xmpp-sasl">cmVhbG09InZvaXAudGF4ZGVmZW5zZW5ldHdvcmsuY29tIiwgbm9uY2U9InZoRkYvc0lYaXFMRXNvRnlKOGNCUXc9PSIsIHFvcD0iYXV0aCIsIGNoYXJzZXQ9dXRmLTgsIGFsZ29yaXRobT1tZDUtc2Vzcw==</challenge>

OnError >>>
System.NullReferenceException: Object reference not set to an instance of an object.
   at Matrix.Xmpp.Sasl.Processor.Digest.Step2.SupportsAuth(String qop)
   at Matrix.Xmpp.Sasl.Processor.Digest.Step2..ctor(Step1 step1, SaslProcessor proc)
   at Matrix.Xmpp.Sasl.Processor.Digest.DigestMd5Processor.Parse(Challenge ch)
   at Matrix.SaslHandler.XmppStreamParser_OnStreamElement(Object sender, StanzaEventArgs e)
   at System.EventHandler`1.Invoke(Object sender, TEventArgs e)
   at Matrix.Xml.XmppStreamParser.DoRaiseOnStreamElement(XmppXElement el)
This post was edited on 2015-10-08, 14:28 by Alex.
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Alex 2015-10-08, 15:07 #7
Member since Feb 2003 · 4297 posts · Location: Germany
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The decoded messages is the following:

realm=\"yourdomain\", nonce=\"vhFF/sIXiqLEsoFyJ8cBQw==\", qop=\"auth\", charset=utf-8, algorithm=md5-sess

the server puts spaces between all the pairs. I am not sure if this allowed according to the specs.

Anyway, we trim those out now and it should work fine then.

  • Which MatriX version are you using? Then we will upload new NuGet packages for you.
  • Just for our records, which server software is producing such a message?

Thanks,
Alex
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Alex 2015-10-08, 15:53 #8
Member since Feb 2003 · 4297 posts · Location: Germany
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version 2.0.0.8 for Windows Desktop is here on NuGet:
https://www.nuget.org/profiles/agsoftware

Can you try it?

Thanks,
Alex
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Alex 2015-10-13, 10:48 #9
Member since Feb 2003 · 4297 posts · Location: Germany
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did this build fix your problem?
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