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Bug #23602 Can't Force HTTP/1.0 Over HTTP/1.1
Submitted: 2003-05-12 18:58 UTC Modified: 2003-05-20 08:46 UTC
From: hz11 at nyu dot edu Assigned:
Status: Not a bug Package: HTTP related
PHP Version: 4.3.2RC OS: FreeBSD 4.6.2-RELEASE
Private report: No CVE-ID: None
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From: hz11 at nyu dot edu
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 [2003-05-12 18:58 UTC] hz11 at nyu dot edu 
I have a .php setup as an ErrorDocument under Apache 1.3.27, compiled as a DSO.  When an request is made that isn't found, the page is called without issue.  So, I'm trying to set a different header, for example:

header('HTTP/1.0 408 Request Time-out',TRUE,408);

However, the response header always ends up:

HTTP/1.1 408 Request Time-out

on the client.  If I were to change the status code, everything works as expected, yet I can't override the HTTP version.

Is this expected behavior; do I need to force changes like this in Apache's conf, or is it something that could use another look?

Many thanks,

Hans

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 [2003-05-13 01:42 UTC] helly@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

You need to "SWITCH" the protocol.
 [2003-05-19 10:05 UTC] hans at nyu dot edu 
I believe this is a bug in PHP, or at least in how it writes headers through SAPI.c, and is not related to RFC2616 Upgrade/Switch behavior (http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.42).

I believe this problem is at:  http://lxr.php.net/source/php4/main/SAPI.c#542

With a call such as header('HTTP/1.0 409'); the HTTP version is never even considered.  The status code is the only thing that is examined and changed.

And, in fact, I'm unsure why PHP/Apache would respond with a HTTP/1.1 header when given a HTTP/1.0 request.  Telnetting to port 80 of my PHP/4.3.2RC2 server and issuing the following request:

GET /test.php HTTP/1.0
Host: test.com

will illicit a HTTP/1.1 response, even when test.php contains:

header('HTTP/1.0 409');

or:

header('101',TRUE,101);
header('Upgrade: HTTP/1.0');

as noted as the way to "Switch" protocols in the RFC, albeit in this case, since the client is me doing a telnet and not a user agent, this would have little bearing.

If someone could take another look at this I'd very much appreciate it.

Hans
 [2003-05-19 20:07 UTC] sniper@php.net 
Not PHP problem, Apache replies with HTTP/1.1 always.
(I disabled PHP from my installation and it still says HTTP/1.1 for HTTP/1.0 request)
 [2003-05-20 08:15 UTC] hz11 at nyu dot edu 
Thank you for the clarification.  As I had considered at first, http://httpd.apache.org/docs/env.html is the only way to handle this.

My thinking that it was a PHP issue was due to the fact that when setting a header the complete change wasn't occurring, and http://lxr.php.net/source/php4/main/SAPI.c#542 furthered this.  Whether considering only the status, if in fact forcing the protocol is even possible, is another issue, of which I won't get involved in :)

Thank you,

Hans
 [2003-05-20 08:46 UTC] sniper@php.net 
restored the original Summary..
 
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