[psac]

#!/usr/bin/perl

use LWP;

# path to store updates
$PATH="/var/www/html/nod";
# username/password for updates registered users
$LOGIN="AV-xxxxxxx";
$PASS="xxxxxxxx";
# URL for updates
#$URL_UPD="http://u2.eset.com/nod_eval";
$URL_UPD="http://u2.eset.com/";

$URL_UPD =~ s/\/$//;
$URL_UPD =~ m/(.*:\/\/)(.*?)(\/.*)/;
$site = "$1$2";
if ($site =~ m//) {
print "Enter correct URL\n";
return;
}

unlink("$PATH/update.ver","$PATH/update.tmp");
download($PATH,"$URL_UPD/update.ver",$LOGIN,$PASS);
`/usr/local/bin/unrar e -y $PATH/update.ver $PATH 2> /dev/null`;
rename("$PATH/update.ver","$PATH/update.tmp");

$ver = "$PATH/update.tmp";
$vers = "$PATH/update.ver";

open(VER, "< $ver") or die "Couldn't open $ver for reading: $!\n";
open(VERS, "> $vers") or die "Couldn't open $vers for writing: $!\n";

%files = ();
%urls = ();

while (defined($line = <VER>) )
{
chomp $line;
$line =~ s/^\s+//;
$line =~ s/\s+$//;
($par,$val)=split /=/, $line;

if ($par =~ /file/ )
{
$name = $val;
$name =~ s/\/.*\///;

if ($name=~m/$val/) {$furl="$URL_UPD/$val";}
else {$furl="$site$val";}
$line="file=$name";
}
if ($par =~ /size/ )
{
$size = $val;
$files{$name} = $size;
$urls{$name} = "$furl";
}
print VERS "$line\r\n";
}
print "\n";

close(VER);
close(VERS);
foreach $f (keys %files) {
if ( (-s ("$PATH/$f")) != $files{$f}){
download($PATH,$urls{$f},$LOGIN,$PASS);
}
}
chmod(0644,"$PATH/*");

sub download()
{
my ($path, $url, $login, $pass) = @_;

# use external downloader
system("/usr/bin/lftp -c \"get -cO $path $url\"");
return;
# PERL downloader
$url =~ m/(.*:\/\/)(.*)\/(.*)/;
my $filename = $3;

my $ua=LWP::UserAgent->new();
$ua->agent("PerlUA/0.1");
my $ua=LWP::UserAgent->new();
$ua->agent("PerlUA/0.1");
my $req = HTTP::Request->new(HEAD => "$url");
$req->authorization_basic($login, $pass);
my $document=$ua->request($req);
if($document->is_success) {
if (!($document->content_length== -s("$path/$filename"))) {

my $req = HTTP::Request->new(GET => "$url");
$req->authorization_basic('login', 'password');
my $document=$ua->request($req);
if($document->is_success) {
open(OUT, "> $path/$filename");
print OUT $document->content;
close(OUT);
print "Downloading $url ";
print "- ok\n";
}
else {
print "$url ",$document->status_line,"\n";
}
}
else { #
print "$filename - exist\n";
}
}
else {
print "$url ",$document->status_line,"\n";
}
}