In order to test LWP::UserAgent behaviour on server response 302 Found, I have created the following scripts and uploaded them to a server. If you want to do a quick test then use the last script below to hit http://fotomazi.eu5.net/bin/302.cgi You should get redirected to 200.cgi, and have a cookie set.
script name: 302.cgi
# perl CGI to send a 302 Found response to caller plus setting
# a cookie with name=XYZ123 and value 1.
# the REDIRECT_URL points to the script described further below
# hosted at my server.
use strict;
use warnings;
use CGI;
use CGI::Cookie;
my $REDIRECT_URL = 'http://fotomazi.eu5.net/bin/200.cgi';
my $cgi = CGI->new;
my $cookie = $cgi->cookie(
-name=>'COOKIE302',
-value=>'1',
-expires=>'+4h',
-path=>'/'
);
print $cgi->redirect(
-uri=> $REDIRECT_URL,
-cookie => $cookie,
-status=>302
);
exit(0);
1;
__END__
script name: 200.cgi
# perl CGI which expects a cookie with name=XYZ123, if received
# then cookie's value is incremented by 1 and returned.
# this script can act as the final destination of the 302 Found redire
+ct script above.
use strict;
use warnings;
use CGI;
use CGI::Cookie;
my $cgi = CGI->new;
my $cookies = fetch CGI::Cookie;
my $cookie = $cookies->{'COOKIE302'};
if( ! defined($cookie) ){
print $cgi->header() . "No cookie received.<br>";
exit(1)
}
my $cookie_value = $cookie->value;
if( ! ($cookie_value =~ /^([0-9]+)$/) ){
print $cgi->header() . "Invalid cookie received, value is '$cookie
+_value'.<br>";
exit(1)
}
$cookie->value($cookie_value+1);
print $cgi->header(
-charset => "utf-8",
-cookie => $cookie,
) . "this is 200 OK, you have been redirected OK, your cookie is valid
+, value was '".$cookie_value."' and now is '".$cookie->value."'.<br>"
+;
exit(0);
1;
__END__
The following script can be run locally at command line to make a request to the 302.cgi and check how it handles redirects with various values for LWP::UserAgent's max_redirect and requests_redirectable.
script name: test_redirect.pl
#!/usr/bin/env perl
# create a UserAgent and send a request to 302.cgi to see how
# it handles redirects.
use LWP::UserAgent;
use LWP::ConsoleLogger::Easy qw( debug_ua );
use HTTP::Response;
use HTTP::Request::Common;
use HTTP::Cookies;
use URI;
my $URLobj = URI->new('http://fotomazi.eu5.net/bin/302.cgi');
my $URLstr = $URLobj->as_string;
my $ua = LWP::UserAgent->new(
# 'requests_redirectable' => [],
);
LWP::ConsoleLogger::Easy::debug_ua($ua, 6);
$ua->cookie_jar(HTTP::Cookies->new(
'file' => './cookies.txt',
'autosave' => 1,
'ignore_discard' => 1,
));
my %extra_headers = ();
my $a_request = HTTP::Request::Common::GET(
$URLstr,
%extra_headers
);
if( ! defined($a_request) ){ print STDERR "$0 : call to ".'HTTP::Reque
+st::Common::GET()'." has failed.\n"; exit(1) }
my $a_response = $ua->request($a_request);
print $a_response->as_string."\n";
The first two scripts are already hosted on a server so one can use the last script only to send a request lto http://fotomazi.eu5.net/bin/302.cgi
The two CGI scripts do not keep any logs.
bw
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