How can I use Perl to send and HTTP request with a cookie?

Question

I am new to Perl and I want to write a Perl program that:

• creates an HTTP request
• sends it to any URL (eg http://www.google.com )
• includes a cookie in the request
• logs the http response codes in a file

I have tried this:

    #!/usr/bin/perl
require HTTP::Request;
require LWP::UserAgent;

$request = HTTP::Request->new(GET => 'http://www.google.com/');
$ua = LWP::UserAgent->new;
$ua->cookie_jar({file => "testcookies.txt",autosave =>1});

$response = $ua->request($request);
if($response->is_success){
print "sucess\n";
print $response->code;
}
else {
print "fail\n";
die $response->code;
}

pls tell how to set cookie in 'request' ie

how to set a cookie when we send HTTP::Request

i was expecting something like:

$request = HTTP::Request->new(GET => 'http://www.google.com/');
$ua = LWP::UserAgent->new;
$ua->new CGI::Cookie(-name=>"myCookie",-value=>"fghij");

is this possible??

Answer 1

As mentioned cookies are in HTTP::Cookies:

• You need to create a cookie jar

• You set the value of the cookies to put in the jar

• You then associate that jar with your user agent

For example:

my $ua = LWP::UserAgent->new;
my $cookies = HTTP::Cookies->new();
$cookies->set_cookie(0,'cookiename', 'value','/','google.com',80,0,0,86400,0);
$ua->cookie_jar($cookies);
# Now make your request

set_cookie has a rather large number of arguments:

set_cookie( $version, $key, $val, $path, $domain, $port, $path_spec, $secure, $maxage, $discard, \\%rest )

This is because the cookie jar is designed from the point of view of a browser (a UserAgent), rather than a single request. This means not all the arguments are so important in this case.

The ones you need to get right are $key, $val, $path, $domain, $port.

Regarding the:

500 Can't connect to www.google.com:80 (Bad hostname 'www.google.com')

It means that LWP can't lookup the address for Google. Are you behind a web proxy? If so you will need to set your proxy in the UA too using something like:

$ua->proxy(['http', 'https'], ' http://proxyhost.my.domain.com:8080/ ');

Answer 2

从LWP :: UserAgent和HTTP :: Cookies开始