how to prevent session creation for search engines

Hi,

Does anyone know how we can prevent session creations for
search
engines on an asp.net 2.0 website?
We use cookie based session, which obviously fails for
search engines ...

Thanks,
// Ryan

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Check user agent string - there are defined user agents for
most search
agents
See http://www.useragents
tring.com/
http://w
ww.pgts.com.au/pgtsj/pgtsj0208q.html (many others out
there as well)
This is also a trick that can be used to view content you
don't have a
session for..
Ie change your user agent string in firefox (ie doesn't
allow you - only to
append to it unless you are using an http debugging proxy)
and then view a
previously indexed but protected page..
So be sure to handle that technique as well.

-----Original Message-----
From: Discussion of building .NET applications targeted for
the Web
[mailtoOTNET-WE
BDISCUSS.DEVELOP.COM] On Behalf Of Ryan Heath
Sent: Friday, December 08, 2006 2:31 AM
To: DOTNET-WEBDISCUSS.DEVELOP.COM
Subject: [DOTNET-WEB] how to prevent session creation for
search engines

Hi,

Does anyone know how we can prevent session creations for
search
engines on an asp.net 2.0 website?
We use cookie based session, which obviously fails for
search engines ...

Thanks,
// Ryan

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View archives and manage your subscription(s) at http://discuss.develop.com


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I have a .net 2.0 client that talks to a .net 2.0 web
service. The
prototype for two of the web methods are approximately this:

   bool Send(string destination, SendData a);
   SendResult Receive(string source);

SendData might be defined:

  public class SendData {
     public string A;
     public string B;
  }

And SendResult might be defined:

  public class SendResult {
     public string X;
     public string Y;
  }

This works very nicely, and is fairly standard.   However, I
now have to
produce a proxy web service that can forward results to
different web
servers based on the destination/source parameter to the web
method.  It
needs to be completely transparent to the client.  It also
needs to be
forward compatible so that web services can be upgraded to
include extra
parameters in SendData/SendResult in the future without
having to roll
out a different proxy.

My first attempt was to build a web service like this (in
exactly the
same namespace)

  bool Send(string destination, XmlDocument a);
  XmlDocument Receive(string source);

I was hoping that the XmlDocument would contain the entire
xml
represending the SendData when Send was called, and then I
could call
the other web service.  However, the document "a"
above, only contained
the element for the string "A".

For my next attempt, I implemented a .ashx HttpHandler, and
read the
entire post data for the web service, used an XmlDocument to
retrieve
the appropriate parameter, and forwarded the request using
HttpWebRequest.  This works, but feels a little bit complex.

Can anyone offer any guideance as to whether my solution is
appropriate,
or whether there is an "easier" way to implement
this proxy?

Best wishes
James

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