[En-Nut-Discussion] browser redirection with "Location:"

Mon Dec 15 13:28:43 CET 2003

----- Original Message ----- 
From: "Jelle Martijn Kok" <jmkok at youcom.nl>
To: "Ethernut User Chat (English)" <en-nut-discussion at egnite.de>
Sent: Monday, December 15, 2003 1:00 PM
Subject: Re: [En-Nut-Discussion] browser redirection with "Location:"


> Hi Dave,
>
> >     NutHttpSendHeaderTop(stream, req, 200, "Ok");
> As far as I know "Location" headers should be sent by in combination with
a
> 3xx Redirection status code. So I guess it should be:
> NutHttpSendHeaderTop(stream, req, 302, "Found");
>
> What you also should test is login with telnet and check if it exactly
> generates the correct page.
> eg:
> telnet 192.168.1.101 80
> GET /cgi-bin/test.cgi?Sound=Tone1 HTTP/1.0
> (followed by 2 resturns...)
>
> Jelle Martijn Kok
>
> ----- Original Message -----
> From: "Dave Smart" <Dave at Smart-Family.net>
> To: "EtherNut Discussion (E-mail)" <En-Nut-Discussion at egnite.de>
> Sent: Saturday, December 13, 2003 2:35 AM
> Subject: [En-Nut-Discussion] browser redirection with "Location:"
>
>
> > I have a web page compiled into the file system which I based on the
httpd
> > sample - the many samples are terrific by the way!
> >
> > I proved by example on my PC web server that -
> > print <<"EOM";
> > Location: http://192.168.1.101/HWTest.htm
> >
> > EOM
> > exit;
> > will take me from the home PC to my Ethernut web server, as expected. I
> > wanted to do something similar within the ethernut site, but can't get
> this
> > method to work, and I'm not sure why.
> >
> > Eventually, the fixed page in this example will be selected based on the
> cgi
> > parameters. I thought about opening the file of interest and sending it
> > directly, but having both my code and the server code doing the same
thing
> > seemed wasteful, so I thought it more elegant to use the browser
> redirection
> > and let the server open and send the file.
> >
> > In more detail -
> >
> > On one of my web pages I configured several hardware tests, so there are
> > links similar to <http://192.168.1.101/cgi-bin/test.cgi?Sound=Tone1>,
> where
> > the ip is that of the ethernut web server.
> >
> > When I click on this link, it is handled just as it should (even makes
the
> > noise it should). I then want it to refresh to the web page it came
from,
> so
> > I may activate another of the tests. This is where I'm stuck.
> >
> > I tried several variations of -
> >
> > static prog_char redirect[] = "Location: http://%s/HWTest.htm\r\n\r\n";
> >
> > Like this -
> >     NutHttpSendHeaderTop(stream, req, 200, "Ok");
> >     NutHttpSendHeaderBot(stream, html_mt, -1);
> >     fprintf_P(stream, redirect1, inet_ntoa(confnet.cdn_ip_addr));
> >
> > and even this hardwired version -
> >
> >     fputs_P("Location: http://192.168.1.101/HWTest.htm\r\n\r\n",
stream);
> >
> > I did finally get it to work the round-about way -
> >
> > static prog_char redirect[] = "<html><meta http-equiv=\"Refresh\"
> > content=\"0;URL=http://%s/HWTest.htm\"></head><body>Back to
> > test.</body></html>";
> >
> > but it sits on this screen long enought to anoy me.
> >
> > Can you see what I'm doing wrong?
> >
> > Dave Smart
> >
> >
> > _______________________________________________
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> > En-Nut-Discussion at egnite.de
> > http://www.egnite.de/mailman/listinfo.cgi/en-nut-discussion
> >
>
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