Setting session variables

Chuck Anderson wrote:

> RewriteEngine on
> RewriteCond %{REQUEST_FILENAME} \.html [NC]
> RewriteRule (.*) create_a_session.php?req=$1 [L]

You might like to add an extra RewriteCond that checks to make sure that
the session cookie doesn't already exist.

Something like:

RewriteCond %{HTTP_COOKIE} !PHPSESSID

This might slightly reduce server load.

--
Toby A Inkster BSc (Hons) ARCS
http://tobyinkster.co.uk/
Geek of ~ HTML/SQL/Perl/PHP/Python/Apache/Linux

Toby A Inkster wrote:
> Chuck Anderson wrote:
>
>
>> RewriteEngine on
>> RewriteCond %{REQUEST_FILENAME} \.html [NC]
>> RewriteRule (.*) create_a_session.php?req=$1 [L]
>>
>
> You might like to add an extra RewriteCond that checks to make sure that
> the session cookie doesn't already exist.
>
> Something like:
>
> RewriteCond %{HTTP_COOKIE} !PHPSESSID
>
> This might slightly reduce server load.
>
>

Good idea, ..... but I've already begun using a timestamp for the
session var. When I serve the image I verify that the difference
between now and the session var (timestamp) is less than n seconds (30,
for now). This way the ability to load the image some other way (hot
link) will automatically expire in a "very reasonable" amount of time.
But, it also means that I need to set the var every time.

My guess is that my site is not high volume enough to make it necessary
to worry about server load.

--
*****************************
Chuck Anderson • Boulder, CO
*****************************

Chuck Anderson wrote:

> But, it also means that I need to set the var every time.

Yes. This all sounds a bit paranoid to me.

--
Toby A Inkster BSc (Hons) ARCS
http://tobyinkster.co.uk/
Geek of ~ HTML/SQL/Perl/PHP/Python/Apache/Linux

Toby A Inkster wrote:
> Chuck Anderson wrote:
>
>
>> But, it also means that I need to set the var every time.
>>
>
> Yes. This all sounds a bit paranoid to me.
>
>

Agreed. A little of my "OCD" is kicking in here ô¿Ô¬

It's a hobby, but I'm learning how to control access to images on my
site. The myspace'ers, livejournal, and all other sorts of hot linkers
seem to like my images - a LOT.

--
*****************************
Chuck Anderson • Boulder, CO
*****************************