Byte Code wrote:
> Hi.
>
> Here is the scenario.
>
> Client send a browser requst to Host A
>
> Host A receives the request and redirects to Host B
> Host B does some work and redirects back to Host A
>
> How do we determine now on host A that the request came from Host B???
>
> If both the servers do a response.sendRedirect() then a getRemoteHost()
> and getRemoteAddress() always return the host and IP if the "originator"
> of the request. AKA the browser.
>
> IS there anyother way to determine on A that the request actually came
> from B?
> ( after redir )
>
The problem is that the request really did come from the client in both
cases. That's the way that redirects work:
* Client calls Host A (remote host is Client)
* Host A sends "redirect" back to Client
* Client calls Host B (remote host is still Client)
However, the client browser might include a "Referer" header to host B that
said this request was "referred by" host A. Try looking for that (with a
request.getHeader("Referer") call).
> RFC 2109 and RFC 2068 arent really explicit on this..Any ideas people
>
> -Sam
>
Alternatively, you could have Host A make the request itself to Host B (acting
like a proxy) and return the results, instead of doing a redirect. You could
use a URLConnection for this. Then, Host B would see Host A as the remote
host in the request, instead of Client.
Craig McClanahan
___________________________________________________________________________
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff SERVLET-INTEREST".
Archives: http://archives.java.sun.com/archives/servlet-interest.html
Resources: http://java.sun.com/products/servlet/external-resources.html
LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
