HTTP GET not working ...why?

#1 July 24th, 2005, 12:45 AM

I've got a program that accesses the following URL
with a GET command but the server responds with 400.
Is there something unusual about this site?

Thanks.

http://www.nasa.gov/externalflash/An..._noaccess.html

#2 July 24th, 2005, 12:45 AM

The web server might be rejecting the program because of
unknown browser type. The site is flash based so it must be
checking for browser compatibility.

I would recommend using Ethereal to check the difference
between the HTTP get sent by a regular browser and your
program.

Deepa
--
EventStudio 2.5 - http://www.EventHelix.com/EventStudio
Generate protocol sequence diagrams in PDF and MS Word

#3 July 24th, 2005, 12:45 AM

In article <1110420301.779955.185330@o13g2000cwo.googlegroups .com>,
"Yef" <e97y@yahoo.com> wrote:
[color=blue]
> I've got a program that accesses the following URL
> with a GET command but the server responds with 400.
> Is there something unusual about this site?
>
> Thanks.
>
> http://www.nasa.gov/externalflash/An..._noaccess.html[/color]

Are you sending the "Host: www.nasa.gov" header? I get a 400 response
if I leave it out, but the GET works when I put it in.

The server is presumably doing virtual hosting, so it needs to know the
hostname of the URL in order to find the proper page.

--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***

#4 July 24th, 2005, 12:45 AM

I wasn't sending Host.

Incidentally, I've got another bizarre host:

http://www.oreilly.com/openbook/webclient/ch03.html

It sends back HTML which doesn't look like what later
appears in the browser, e.g. title= MakeZine.com

Do you have any idea what's going on with that?
Thanks.

#5 July 24th, 2005, 12:45 AM

Gazing into my crystal ball I observed "Yef" <e97y@yahoo.com> writing in
news:1110424562.187552.176510@l41g2000cwc.googlegr oups.com:
[color=blue]
> I wasn't sending Host.
>
> Incidentally, I've got another bizarre host:
>
> http://www.oreilly.com/openbook/webclient/ch03.html
>
> It sends back HTML which doesn't look like what later
> appears in the browser, e.g. title= MakeZine.com
>
> Do you have any idea what's going on with that?
> Thanks.
>[/color]

Sounds like you might have been hijacked. If you're on a windows system,
take a look at your hosts file and see if there is anything suspicious in
it. See <http://www.mvps.org/winhelp2002/hosts.htm> for more info. Also
run a spyware checker, Spybot Search & Destroy is very good
<http://security.kolla.de/>, and I would also run a virus check.

--
Adrienne Boswell
http://www.cavalcade-of-coding.info
Please respond to the group so others can share

#6 July 24th, 2005, 12:46 AM

Nope, that's not it. Incidentally does Windows have an equivalent
to Linux's /etc/hosts.deny?

Thanks.

#7 July 24th, 2005, 12:46 AM

In article <1110511503.759355.62070@o13g2000cwo.googlegroups. com>,
"Yef" <e97y@yahoo.com> wrote:
[color=blue]
> Nope, that's not it.[/color]

Please learn how to quote the message you're responding to with the new
Google. It's in an Options menu I think.

I just did:

telnet www.oreilly.com 80
GET /openbook/webclient/ch03.html HTTP/1.0
Host: www.oreilly.com

and the HTML it sent looked like it would produce the page I saw with my
browser. It began with:

HTTP/1.1 200 OK
Date: Fri, 11 Mar 2005 03:50:30 GMT
Server: Apache/1.3.33 (Unix) PHP/4.3.10 mod_perl/1.29
P3P: policyref="http://www.oreillynet.com/w3c/p3p.xml",CP="CAO DSP COR
CURa ADMa DEVa TAIa PSAa PSDa IVAa IVDa CONo OUR DELa PUBi OTRa IND PHY
ONL UNI PUR COM NAV INT DEM CNT STA PRE"
Last-Modified: Fri, 09 May 2003 19:30:53 GMT
ETag: "2fbbe-1b80d-3ebc01ed"
Accept-Ranges: bytes
Content-Length: 112653
Content-Type: text/html
X-Cache: MISS from www.oreilly.com
Connection: close

<HTML>
<HEAD>
<title>Web Client Programming with Perl: Chapter 3: Learning HTTP</title>
</head>
[color=blue]
> Incidentally does Windows have an equivalent
> to Linux's /etc/hosts.deny?[/color]

I don't think so, but I'm not a Windows expert.

--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***

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