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Re: Apache and php to show http request headers. [message #178496 is a reply to message #178495] Mon, 25 June 2012 14:42 Go to previous messageGo to previous message
tony is currently offline  tony
Messages: 19
Registered: December 2010
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In article <js9pqt$1lm$1(at)dont-email(dot)me>,
Jerry Stuckle <jstucklex(at)attglobal(dot)net> wrote:
> On 6/25/2012 9:36 AM, Tony Mountifield wrote:
>> In article <klslb9-ogk(dot)ln1(at)luuk(dot)invalid(dot)lan>, Luuk <luuk(at)invalid(dot)lan> wrote:
>>> On 25-06-2012 12:15, brumik wrote:
>>>>
>>>> I need to test various http requests from an application and am using
>>>> Apache/PHP on ubuntu to display the http request headers. The
>>>> application proxy forwards http requests to the apache server's IP
>>>> address like as follows:
>>>>
>>>> 192.168.40.1/test/test.html
>>>>
>>>> where 192.168.40.1 is the apache server.
>>>>
>>>> I have a php script to dump the headers as follows:
>>>>
>>>> <?php
>>>> foreach($_SERVER as $h=>$v)
>>>> #if(ereg('HTTP_(.+)',$h,$hp))
>>>> echo "<li>$h = $v</li>\n";
>>>> header('Content-type: text/html');
>>>> ?>
>>>>
>>>> The problem is that to show the headers, I redirect 192.168.40.1/* to
>>>> the above index.php page using the following redirect:
>>>>
>>>> Options +FollowSymlinks
>>>> RewriteEngine on
>>>> RewriteCond %{REQUEST_URI} !/index.php$
>>>>
>>>> RewriteRule $ /index.php [R=302,L]
>>>>
>>>> However the php request headers page always shows the URI as /
>>>> index.php as opposed to the 'original' URI requested (/test/
>>>> test.html).
>>>>
>>>> How can I get it to show the 'original' URI requested? is this
>>>> something that can be done in PHP or is it apache specific?
>>>>
>>>
>>> Its apache, because it is redirecting, so PHP does only know about the
>>> redirected request, and does have no knowledge of how this request
>>> reached PHP.
>>
>> You could try the Proxy flag in the RewriteRule:
>>
>> RewriteRule $ http://localhost/index.php [P,L]
>
> He can try a lot of things which won't work.

Well, yes, but I didn't think my suggestion was one of them. If you
think it is, I would like to know why, so that I would know for the
future, rather than just be the target of a bit of sarcasm. You could
try something like "That won't work because...." (if applicable).

The OP's original rule obviously wouldn't work, because it tells the
client browser to generate a completely fresh request with the new
location. In contrast, the Proxy flag in RewriteRule is supposed to
make Apache proxy the original request to the new location (even to
itself if necessary). So the request's original headers should still
be present, with perhaps one or more proxy headers.

Cheers
Tony
--
Tony Mountifield
Work: tony(at)softins(dot)co(dot)uk - http://www.softins.co.uk
Play: tony(at)mountifield(dot)org - http://tony.mountifield.org

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