HTTP polling - Unhadled Exception - Forum

steelspace

2008-01-28, 19:58 #1

Member since Mar 2007 · 11 posts
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Subject: HTTP polling - Unhadled Exception

When you setup connection via proxy (HTTP polling) and the host does not respond on time, the exception is raised, but from code in a separate thread which is not possible to catch in the calling application. Exception is raised from the .NET class WebClient.

   at System.Net.HttpWebRequest.GetRequestStream()
   at agsXMPP.net.PollClientSocket.PollThread()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()

This post was edited on 2008-01-29, 10:50 by steelspace.

Alex

2008-01-29, 17:20 #2

Member since Feb 2003 · 2700 posts · Location: Germany
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hi steelspace,

is there a way to cause this exception?I think it should be no problem to catch it and raise an Error on XmppCLientConnection.

Alex

PS: Can you send me a roster request again? I broke my roster and lost your jids

Alexander Gnauck
AG-Software

steelspace

2008-01-30, 08:51 #3

Member since Mar 2007 · 11 posts
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Hi Alex, my jid is steelspace@jabber.cz

As far as the exception - I can't catch it because it is thrown i a separate thread. It occurs only if you use HTTP polling (that's why it is raised by WebClient object).

Next exception occurs if you specify improper connect server:

   at agsXMPP.net.PollClientSocket.PollThread()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()</StackTrace><ExceptionString>System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---&gt; System.IO.IOException: The handshake failed due to an unexpected packet format.
   at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)
   at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
.....

Petr

Alex

2008-02-07, 12:53 #4

Member since Feb 2003 · 2700 posts · Location: Germany
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fixed in SVN

Alexander Gnauck
AG-Software