How to execute a page's javascript function in perl?

Question

I am trying to extract data from a website using Perl. Below is the description of the site:

site displays data dependent on a date
a calendar is displayed that is used to change the date
upon clicking the dates in the calendar, it calls a javascript function that passes in the date and refreshes the part of the page that displays the data

My question is, how do I execute that JS function so that I could loop through the dates that I need data from?

Thanks in Advance

gangabass · Accepted Answer · 2012-12-03 14:14:50Z

3

It's much easy make same HTTP request from your script and get all data you need directly.

You can record all HTTP requests/responses of your browser by using HTTP Fox extension (for Firefox).

edited Dec 3, 2012 at 14:14

answered Dec 2, 2012 at 11:16

gangabass

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1 Comment

Andrei dela Cruz Over a year ago

Thanks for your help. I downloaded HTTPFox and knew the exact request the site made. I imitated this request using LWP and it works perfectly. Thanks again!

cjm · Accepted Answer · 2012-12-03 04:25:53Z

2

Edit

There is a CPAN module:

JavaScript - Perl extension for executing embedded JavaScript

But I've not already tested them.

Original post:

Take a look at smjs it's Spidermonkey's JS shell.

You could pass javascript by:

open my $jsout,"echo '$javascript' | smjs |" or die;
print <$jsout>;

...

But be care! This take security consideration away!

edited Dec 3, 2012 at 4:25

cjm

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answered Dec 2, 2012 at 10:52

F. Hauri - Give Up GitHub

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