#!perl

use 5.008001;

use strict;
use warnings;

use Net::FTP;
use Test::More;
use File::Temp;
use IO::Socket::INET;

my $server = 'test.rebex.net';
my $debug = 0;

plan skip_all => "no SSL support" if ! Net::FTP->can_ssl;
require IO::Socket::SSL;


# first try to connect w/o ftp
# plain
diag( "connect inet to $server:21" );
IO::Socket::INET->new( "$server:21" ) or do {
    plan skip_all => "$server:21 not reachable";
};

# ssl to the right host
diag( "connect inet to $server:990" );
my $sock = IO::Socket::INET->new( "$server:990") or do {
    plan skip_all => "$server:990 not reachable";
};

# now we need CAs
my $cafh = File::Temp->new( UNLINK => 0, SUFFIX => '.crt' );
my %sslargs = ( SSL_ca_file => $cafh->filename );
print $cafh <DATA>;
close($cafh);

diag( "upgrade to ssl $server:990" );
IO::Socket::SSL->start_SSL($sock,
    SSL_verify_mode => 1,
    SSL_verifycn_name => $server,
    SSL_verifycn_scheme => 'ftp',
    %sslargs,
) or do {
    plan skip_all => "$server:990 not upgradable to SSL: ".
        $IO::Socket::SSL::SSL_ERROR;
};

plan tests => 9;

# first direct SSL
diag( "connect ftp over ssl to $server" );
my $ftp = Net::FTP->new($server,
    SSL => 1,
    %sslargs,
    Debug => $debug,
    Passive => 1,
);
ok($ftp,"ftp ssl connect $server");
$ftp->login("anonymous",'net-sslglue-ftp@test.perl')
    or die "login to $server failed";
diag("logged in");
# check that we can talk on connection
ok(~~$ftp->ls,"directory listing protected");
$ftp->prot('C');
ok(~~$ftp->ls,"directory listing clear");

# then TLS upgrade inside plain connection
$ftp = Net::FTP->new($server,
    Passive => 1,
    Debug => $debug,
    %sslargs
);
ok($ftp,"ftp plain connect $server");
my $ok = $ftp->starttls;
ok($ok,"ssl upgrade");
$ftp->login("anonymous",'net-sslglue-ftp@test.perl')
    or die "login to $server failed";
diag("logged in");
# check that we can talk on connection
ok(~~$ftp->ls,"directory listing protected");
$ftp->prot('C');
ok(~~$ftp->ls,"directory listing clear");
$ok = $ftp->stoptls;
ok($ok,"ssl downgrade");
ok(~~$ftp->ls,"directory listing after downgrade");


__DATA__
# Subject: C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Class 2 Primary Intermediate Server CA
# Issuer:  C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Certification Authority
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
# Subject: C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Certification Authority
# Issuer:  C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Certification Authority
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----