Strange behaviour with Twitter

[Tomasz JASKULA]

Hi guys,

I'm facing some strange problem with twitter authentication that I've implemented into my web site with DotNetOpenAuth v4.1.0.0. From time to time I get System.ArgumentException

'gzip' is not a supported encoding name.

Parameter name: name

With the following stacktrace (my code calls excluded) :

at System.Globalization.EncodingTable.internalGetCodePageFromName(String name)

   at System.Globalization.EncodingTable.GetCodePageFromName(String name)

   at DotNetOpenAuth.Messaging.NetworkDirectWebResponse.GetResponseReader()

   at DotNetOpenAuth.OAuth.ChannelElements.OAuthChannel.ReadFromResponseCore(IncomingWebResponse response)

   at DotNetOpenAuth.Messaging.Channel.RequestCore(IDirectedProtocolMessage request)

   at DotNetOpenAuth.Messaging.Channel.Request(IDirectedProtocolMessage requestMessage)

   at DotNetOpenAuth.Messaging.Channel.Request[TResponse](IDirectedProtocolMessage requestMessage)

   at DotNetOpenAuth.OAuth.ConsumerBase.ProcessUserAuthorization(String requestToken, String verifier)

   at DotNetOpenAuth.OAuth.WebConsumer.ProcessUserAuthorization(HttpRequestBase request)

   at DotNetOpenAuth.OAuth.WebConsumer.ProcessUserAuthorization()

This happens quite often but not all the time. I can get the exception, then try to log in again and succed with the login. The line that throws the exception is :

var response = TwitterSignIn.ProcessUserAuthorization();

Do you have any idea what's happening ? Maybe you could guide me where I could find more information on how to resolve it ?

Thanks,

Thomas

[TJA]

Hi again,

 

After some investigation, I noticed that the web server is behind and entreprise proxy that seems to fiddle with my request and responses a little. After chaning the server network connection and bypassing the entreprise proxy, it seems to work as expected.

 

However I have a feeling that the error should not be raised anyway. I compared the raw request/responses in fiddler and the only difference seems to be the presence of the Proxy-Connection: keep-alive and Via tags.

 

What do you think about it ?

 

Thanks,

 

Thomas

[Andrew Arnott]

I've seen a few reports (all recently) on this gzip problem.  Although I haven't seen it myself.  I'd like to understand it better to see if a DNOA fix is appropriate, but I either need complete Fiddler logs of the problem, or a way to reproduce it myself, I think.
--
Andrew Arnott
"I [may] not agree with what you have to say, but I'll defend to the death your right to say it." - S. G. Tallentyre

--
You received this message because you are subscribed to the Google Groups "DotNetOpenAuth" group.

To view this discussion on the web visit https://groups.google.com/d/msg/dotnetopenid/-/YGJFbpjPYK4J.

To post to this group, send email to dotnet...@googlegroups.com.
To unsubscribe from this group, send email to dotnetopenid...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/dotnetopenid?hl=en.