Hi,
On Fri, 20 Aug 1999, Srinivasan S (Systems Engineering Group) wrote:
> sorry for this query how to add a query parameter with a URL
>
Well, its URL should look like:
http://hostBaddress:8008/servlet/ServletName?RedirectedFrom=HostA
add to the usual URL
http://hostBaddress:8008/servlet/ServletName
the "?RedirectedFrom=HostA" ; You can pass multiple query parameters
by concatenating them with "&" (and) character:
?Param1Name=param1Value&Param2Name=param2Value
^
However you need to read carefully JSDK's docs;
the values for the parameters should be URL-encoded, before "packing" them
in a query string.
regards,
Cezar.
Concept, n.:
Any "idea" for which an outside consultant billed you more than
$25,000.
>
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> On Fri, 20 Aug 1999, Cezar Totth wrote:
>
> > Hi,
> >
> > The two hosts, A and B can also establish a convention by adding
> > a query parameter called "RedirectedFrom" :
> >
> > HostA adds an "?RedirectedFrom=HostA" to the URL, HostB does the similar
> > thing with care on building the redirected URL to preserve existing
> > query parameters and to add/change only "RedirectedFrom=..."
> > parameter.
> >
> > So both servlets can search for parameter "RedirectedFrom" to see
> > if current request isnt in fact an redirect, and if it is, who did
> > the redirect.
> >
> > The "Referer" header may be there or not, depending on the browser.
> >
> > Cezar.
> >
> > On Thu, 19 Aug 1999, Craig R. McClanahan wrote:
> >
> > > 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
> > >
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