Solved

Sharing session information across two web applications

Posted on 2008-10-06
6
687 Views
Last Modified: 2012-05-05
We have two ASP.net web applications AppA and AppB under the same domain, is it possible to preserve session information from App A to App B ?  Users from AppA are redirected to AppB with information (login and other crtitical data) being transfered by query string to AppB. Now is it possible to maintain reliable distinct session for each user being transfered between the two applications ?

I noticed some user information was being mixed up with the others, is a query string not a good solution for this purpose ?
0
Comment
Question by:byte1
  • 3
  • 2
6 Comments
 
LVL 20

Expert Comment

by:informaniac
Comment Utility
You could have a look @ storing the Session in a sql server d/b.
0
 

Author Comment

by:byte1
Comment Utility
Yes, I am aware of that option, but would using the query string transfer method not create a unique session ?
0
 
LVL 20

Expert Comment

by:informaniac
Comment Utility
How are u sending the session information currently?

Response.Redirect("url"+SessionInfo) ?? something like this?
0
What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

 

Author Comment

by:byte1
Comment Utility
yes, thats how i send information over to AppB.

What i am interested in knowing is under the same domain, is every call to AppB unique with a unique session id.
0
 
LVL 20

Expert Comment

by:informaniac
Comment Utility
If I'm not mistaken, if u r redirecting from appa to appb then the session id should remain the same
0
 
LVL 14

Accepted Solution

by:
Ramuncikas earned 500 total points
Comment Utility
Hello

As a matter of fact each ASP.NET application has it's own session navigating from AppA to AppB will create a new session on AppB while session on AppA will be still active. Even if SessionIDs on both applications are the same Sessions as instances are two different objects and there is no straight forward way to share info between them. If you come back to AppA from AppB before session expires on AppA you will use the same session object.

Sql Session state management is way to go, but you have to keep in mind to major cons:
 - Sql Session state management is about 30% slower then standard InProc Session state management
 - If you want to use Sql Session state management all objects stored in Session have to be serializable. That means there is no problem to store int, string and even datatable into session. But there is a problem to store custom class becuse and it should implement ISerializable interface

I would suggest you two solutions:
1. Do the same as you do now just take ALL query string, encrypt it and pass encryption result as a query string. Safer but not safe enough.
2. Use database to store/retrieve data to be passed among two applications. This might be slower then query string but safer for sure. And this will be even faster then managing Session state in Sql because Sql Session state management will query database many more times then you storing retrieving data on cross-application navigation

If you use Forms authentication in both of your applications you could also implement Single Sign-on (SSO).
http://www.codeproject.com/KB/web-security/aspnetsinglesignon.aspx
(there are many more articles, just ask google :) )
If additional info you want to have in both applications is user relevant then you could extend Users table and have that info stored/read from there.

HTH
R
0

Featured Post

IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

Join & Write a Comment

Suggested Solutions

In .NET 2.0, Microsoft introduced the Web Site.  This was the default way to create a web Project in Visual Studio 2005.  In Visual Studio 2008, the Web Application has been restored as the default web Project in Visual Studio/.NET 3.x The Web Si…
Introduction This article shows how to use the open source plupload control to upload multiple images. The images are resized on the client side before uploading and the upload is done in chunks. Background I had to provide a way for user…
It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.
In this seventh video of the Xpdf series, we discuss and demonstrate the PDFfonts utility, which lists all the fonts used in a PDF file. It does this via a command line interface, making it suitable for use in programs, scripts, batch files — any pl…

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now