sub Get_Token {

use LWP::UserAgent;
use LWP::Protocol::https;
 

#my $GATEWAY_URL = 'https://payflowpro.paypal.com';       # For LIVE transactions
my $GATEWAY_URL = 'https://pilot-payflowpro.paypal.com'; # For TEST transactions




my $random_string=&Random_String(36);
$sec_token_id = $random_string;



#print "Random string: ".$random_string."\n";
print "Random Token Sent: ".$sec_token_id."<br><br>";
#print "Length: ".length($random_string)."<br><br>";







# send http post request to gateway

my $ua = LWP::UserAgent->new;
$ua->env_proxy;

 
 
my $response = $ua->post($GATEWAY_URL, {
                         # add other parameters as necessary
                         'USER' => 'myid',
                         'VENDOR' => 'myid',                         
                         'PARTNER' => 'partner',
                         'TRXTYPE' => 'S',
                         'AMT' => '$paymentamount',
                         'PWD' => 'mypass',
                         'CREATESECURETOKEN' => 'Y',
                         'SECURETOKENID' => $sec_token_id } );


print "Response Unhashed: $response<br><br>";




unless ($response->is_success) {
  # request failed
  print "Error: Problem with secure token.  Please contact the admin.";
}

# parse server response

my $resdec = $response->decoded_content;
chomp $resdec;

# keys and values into %reshash
my @resdata = split(/\&/, $resdec);
my %reshash;
foreach (@resdata) {
  my ($key,$val) = split(/=/, $_, 2);
  $key =~ s/\[\d+\]//; # remove length of SECURETOKEN
  $reshash{$key} = $val;
}





# validate response
unless (defined $reshash{'SECURETOKENID'} &&
    defined $reshash{'SECURETOKEN'} &&
    defined $reshash{'RESULT'} &&
    defined $reshash{'RESPMSG'} &&
    $reshash{'SECURETOKENID'} eq $sec_token_id &&
    $reshash{'RESULT'} eq '0' &&
    $reshash{'RESPMSG'} eq 'Approved') {
  
  
  
  # bad response

  print "Response from Gateway: $resdec<br><br>";
  #print "Error: Cannot retrieve secure token.  Please contact the admin.<br><br>";

}





# result: secure token
my $sec_token = $reshash{'SECURETOKEN'};
my $sec_token_id = $reshash{'SECURETOKENID'};

}






########
sub Random_String {
my $length_of_randomstring=shift;# the length of 
			 # the random string to generate

	my @chars=('a'..'z','A'..'Z','0'..'9');
	my $random_string;
	foreach (1..$length_of_randomstring) 
	{
		# rand @chars will generate a random 
		# number between 0 and scalar @chars
		$random_string.=$chars[rand @chars];
	}
	return $random_string;
        }
#Generate the random string