On Tue 28 Jul 2009, Freddy Jensen wrote:
> I have created a csh script which I invoke from my web page
> like this:
>
> <!--#exec cmd="/somepath/check_for_debug.csh" -->
>
> The script looks like this:
>
> #!/bin/csh -f
> echo '<\!--#set var="MY_DEBUG" value=1 -->'
> exit 0
>
> Right after executing the csh script I have this html code
> that tries to check the value of the MY_DEBUG variable and
> execute printenv if the value is set to 1:
>
> <!--#if expr="${MY_DEBUG} = 1" -->
> <!--#printenv -->
> <!--#endif -->
try it this way:
1) make the shell script accessible by an URL
and configure mod_cgi for this URL
2) set the INCLUDES filter for this URL
3) use #include virtual instead of #exec
If you don't want the script to be exposed on the web you can use
mod_rewrite's IS_SUBREQ variable. If it is false return a 404.
Now a bit of explanation, #exec simply executes the script and passes
the output to the client. #include virtual issues a subrequest. That
means the included document is accessed by an URL and can be configured
independent of the main URL. It can be configured to be handled by
mod_cgi and it can have assigned output filters. Now, when the INCLUDES
filter of the subrequest sees the #set command it sets the variable.
Then the main request's INCLUDES filter can access it. That's the
theory.
Another option may be to configure the INCLUDES filter twice. But then
you have to prevent the #if from being evaluated by the first run of
the filter.
Torsten
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