Numeric IP address in XmppClient.XmppDomain causes crash

sldr

2018-03-02, 21:07 #1

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Subject: Numeric IP address in XmppClient.XmppDomain causes crash

Here is the crash call stack from calling ConnectAsync().Wait(); from XmppClient instance.

System.AggregateException: One or more errors occurred. ---> System.IndexOutOfRangeException: Index was outside the bounds of the array.
   at DotNetty.Transport.Bootstrapping.DefaultNameResolver.<ResolveAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at DotNetty.Transport.Bootstrapping.Bootstrap.<DoResolveAndConnectAsync>d__15.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at DotNetty.Transport.Bootstrapping.Bootstrap.<DoResolveAndConnectAsync>d__15.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Matrix.XmppClient.<ConnectAsync>d__35.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Matrix.XmppClient.<ConnectAsync>d__34.MoveNext()
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at EMailIM.Program.DoWork() in C:\Users\derudder\Documents\Visual Studio 2017\Projects\EMailIMPreRelease\Program.cs:line 80
---> (Inner Exception #0) System.IndexOutOfRangeException: Index was outside the bounds of the array.
   at DotNetty.Transport.Bootstrapping.DefaultNameResolver.<ResolveAsync>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at DotNetty.Transport.Bootstrapping.Bootstrap.<DoResolveAndConnectAsync>d__15.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at DotNetty.Transport.Bootstrapping.Bootstrap.<DoResolveAndConnectAsync>d__15.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Matrix.XmppClient.<ConnectAsync>d__35.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Matrix.XmppClient.<ConnectAsync>d__34.MoveNext()<---

Alex

2018-03-02, 21:12 #2

Member since Feb 2003 · 4449 posts · Location: Germany
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A XmppDomain SHOULD be a domain, not an IP address. Eg. localhost instead of 127.0.0.1

However, if you want to use an IP (which I would never suggest), then use the StaticNameResolver from MatriX with your IP and it may work.

Alex

This post was edited on 2018-03-02, 23:18 by Alex.

sldr

2018-03-02, 22:56 #3

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I don't have any doc (or at least don't know where it is); so I didn't know that it must be a hostname and not a numeric ip address.

I had some network issues so I tried using the numeric ip address just to see if that "fixed" the network issue.

I will check or take care of translating it to a hostname before I use it in XmppClient.

Laters,
SLDR
(Stephen L. De Rudder)

Alex

2018-03-02, 23:13 #4

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The XmppDomain is also configured o nthe server. When the domain does not match on the first roundtrip the server usually immediately will close the connection.

Alex

2018-03-03, 00:48 #5

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there is a new build which passes through ip addresses, even its not suggested to use them.

sldr

2018-03-13, 22:08 #6

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Subject: Thanks

I could not authenticate using numeric ip address. But it didn't crash! :-)

I imagine that "xmpp-sasl" is using the fqdn as a salt into the auth. I put a reverse lookup in front if a numeric ip address is given. Short version of long story, it took forever to get reverse DNS record "fixed" (I know what your thinking; we own our own name servers so no third-party was involved) then I got busy with something else.

Laters,
SLDR
(Stephen L. De Rudder)

Alex

2018-03-13, 22:29 #7

Member since Feb 2003 · 4449 posts · Location: Germany
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Yes the domain is part of the authentication. If it fails your xmpp domain is wrong.
Please post your complete XML logs, then we can check.

Alex