#!/usr/bin/perl
 
use LWP;  
 
# path to store updates  
$PATH="/home/samba/nod32";  
# username/password for updates registered users  
$LOGIN="";  
$PASS="";  
# URL for updates  
#$URL_UPD="http://u2.eset.com/nod_eval";  
#$URL_UPD="http://u2.eset.com/";  
$URL_UPD="http://192.168.x.x/nod32/";
 
 
$URL_UPD =~ s/\/$//;  
$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("cd \"$PATH\"; /usr/bin/wget -c $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";  
    }  
}