I am trying to login to a page programmatically using Perl. I am using the WWW::Mechanize module to get the content of a page, set the fields and submit the values. But since WWW::Mechanize does not support Javascript, the login process has been failing. I would like to know if there is any other way/workaround I could login to a page which does javascript validation of the field before POSTing.

Here is my program: 
use strict;
use LWP::UserAgent;
use WWW::Mechanize;
use HTTP::Cookies;
use LWP::Debug qw(+);

my $user_name = '...';
my $password = '...';
my $base_url = 'https://courses.northwestern.edu/webapps/login/';

my $agent = WWW::Mechanize->new( autocheck => 1 );
$agent->cookie_jar(HTTP::Cookies->new);

$agent->get($base_url);
die $agent->response->status_line unless $agent->success;


#print $agent->content;
$agent->set_fields(
    user_id => $user_name,
    password => $password
);

#print $agent->content();
my $res = $agent->submit();

if ($res->is_success)
{
    print $res->as_string;
}
else
{
    print "Failed: ", $res->status_line, "\n";
}

[download]

And the HTML code contains:
<FORM ONSUBMIT="return validate_form(this)" METHOD="POST" ACTION="https://courses.northwestern.edu/webapps/login/" NAME="login" >

validate_form() is a Javascript method. Any help on this would be much appreciated.

Thanks in advance,
Ragas

In reply to How to login to a form which has Javascript OnSubmit method usirng Perl by ragas

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