Hello I am using Tomcat 3.3. I am communicating with an external server and pass this server a return-redirect-URL so that the end of the process, the external server returns a page to the user that automatically redirects to my server. From here on the user should continue with the session as he had it before. Session is maintained in cookie and to make use of the same cookie it is important that the URL has exactly the same form protocol://host.domain:port/context as before. So for instance a second call to port 80 explicitly and a first to port 80 implied already generates different cookies, thus loosing sessions. A same problem happens with first calling my server by IP, and then call my server by servername. The cookies are different so I loose my session. So at the moment of generating my return-redirect-URL I need to know exactly where I am. How do I know whether my URL has been called by servername or by ip? I tried HttpUtils.getURLRequest but that always returns servername. I tried to look at the session cookie getDomain(), but that returns null. I see no way to find out whether I was called by IP or by servername ... Anyone knows how to do the trick?
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