Hello monks,

When someone visits my webpage at http://nikos.no-ip.org i log to database his ip address, time and date of the visit, what article he chosed to see from my popup menu and how many times the same ip address visited my page.

Today i saw somethign really awkward, i saw in the log an entry looking like above among other normal entries.: 

crawl-66-249-67-210.googlebot.com     09 Jan, 20:09     item_from_drop
+_down_menu     3
zeep.ldc.upenn.edu     07 Jan, 21:29     Θανά&#963
+;ιμα αμαρτήμα&
+#964;α     5

[download]
This automated crawl bot of google's visited from the same ip address my page for the 3rd time and its last selection of param('select') is named "item_from_drop_down_menu"!!!!!

How is this possible to even be there? i only log valid selections that exist in my popup menu and of course i dont have an entry like the above.Here is my code that does the logging: 

my @files = glob "$ENV{'DOCUMENT_ROOT'}/data/text/*.txt";
my @menu_files = map m{([^/]+)\.txt}, @files;
Encode::from_to($_, 'ISO-8859-7', 'utf8') for @menu_files;

print header( -charset=>'utf8' );
my $article = param('select') || "Αρχική
+ Σελίδα!";


if ( param('select') )  {  #If user selected an item from the drop dow
+n menu

   unless( grep /^\Q$article\E$/, @menu_files )  #Unless user selectio
+n doesn't match one of the valid filenames within @menu_files
   {
      if( param('select') =~ /\0/ )
      {
         $article = "*Null Byte Injection* attempted & logged!";
         print br() x 2, h1( {class=>'big'}, $article );
      }
      if( param('select') =~ /\.\.\// )
      {  
         $article = "*Backwards Directory Traversal* attempted & logge
+d!";
         print br() x 2, h1( {class=>'big'}, $article );
      }

      $select = $db->prepare( "UPDATE guestlog SET article=?, date=?, 
+counter=counter+1 WHERE host=?" );
      $select->execute( $article, $date, $host );
      
      exit 0;
   }

   Encode::from_to($article, 'utf8', 'ISO-8859-7');  #Convert user sel
+ected filename to greek-iso so it can be opened

   open FILE, "<$ENV{'DOCUMENT_ROOT'}/data/text/$article.txt" or die $
+!;
      local $/;      
      $data = <FILE>;
   close FILE;
   
   Encode::from_to($article, 'ISO-8859-7', 'utf8');  #Convert user sel
+ected filename back to utf8 before inserting into db
 
   $update = $db->prepare( "UPDATE guestlog SET article=?, date=?, cou
+nter=counter+1 WHERE host=?" );
   $update->execute( $article, $date, $host )
}

[download]
As you can see no other entry except the valid ones can pass the if and unless code blocks and then get inserted into the db.
Can you explain such an entry? You can see this your self by clickign on your ip address shown bottom down on my webpage.

In reply to Weird entry index my guestlog by Nik

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