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Connect a js var to cgi-bin output.

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Jan 10.2005

I would like to load a javascript variable with the output from a perl cgi-bin script. Something like this:
var myVar = getData(“../cgi-bin/myPerlScript.pl”);
At present, when I run a perl script, its output replaces the window contents. I would just like to get data from the perl script and then use it in my current page.
Thanks for any suggestions. (RL)

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@sciguyryanJan 10.2005 — Javascript can not interact with anything other than Other JS scripts and HTML and both of those are limited for security reasons, and for this reason I believe what you ask can not be done.


RyanJ
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@rblauterauthorJan 10.2005 — Thanks Ryan. That's what I was suspecting.

However, I have used a page with 2 frames, where the bottom frame was loaded from a cgi-script. So from the top frame, I was thinking I could get the data from the other frame. But, I would rather not use frames, or at least make the bottom frame very small. Does this make sense? Thanks.
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@CharlesJan 11.2005 — You do, however, have a few options. If you can edit the CGI script, simply have it return:

[font=monospace]Content-Type: text/javascript; charset=ISO-8859-1

myVar = 'foo'[/font]

And then call it with:

[font=monospace]<script src="../cgi-bin/myPerlScript.pl" type="text/javascript"></script>[/font]

If you can't monkey with the script but you do have access to SSI then know that you can include the output from scripts:

[font=monospace]var myVar = getData("<!--#include virtual="../cgi-bin/myPerlScript.pl" -->");[/font]

Though, you may find that the script still needs to prepend an HTTP header.
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@rblauterauthorJan 11.2005 — Thanks Charles. I have access to the perl script but not sure about SSI. So I will try your first suggestion. That is a cool idea.
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@rblauterauthorJan 17.2005 — Just a confirmation: The above method of using a content type of text/javascript works like a champ. Thanks.
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@senshiJan 17.2005 — [i]Originally posted by sciguyryan [/i]

[B]Javascript can not interact with anything other than Other JS scripts and HTML and both of those are limited for security reasons, and for this reason I believe what you ask can not be done.





RyanJ [/B][/QUOTE]

DONT! forget that special javascript's VBarray where you can pass data from Javascript to VBscript via that Array....

as for using server-side to run client-side, exactly how does that work??
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@CharlesJan 17.2005 — [i]Originally posted by senshi [/i]

[B][A]s for using server-side to run client-side, exactly how does that work?? [/B][/QUOTE] By using a server side script to write JavaScript.
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@senshiJan 17.2005 — [i]Originally posted by Charles [/i]

[B]By using a server side script to write JavaScript. [/B][/QUOTE]
I know it can write javascript.

You misunderstood my question and I also bring into question the issue of running perl on a surfers machine, how can you be sure that the user has perl installed on their machine? I have tried several examples thats given about running perl from the command line, I dont have it and as expected it created errors reporting that perl couldnt be found.

So how you pull off getting a server-side language to run client-side is still a bit of a feat and IM just wondering how you pulled it off.
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@CharlesJan 17.2005 — Yes, I did misunderstand the question. You can't, as a rule, get a server side script running client side. When you do the script is called a "virus".
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