fix(cgi-bin): check login cookie in get_anvils

cgi-bin/get_anvils

@@ -31,6 +31,22 @@ if (not $anvil->data->{sys}{database}{connections})
 	$anvil->nice_exit({exit_code => 1});
 }
 
+my $cookie_problem = $anvil->Account->read_cookies();
+
+# Don't do anything data-related if the user is not logged in.
+if ($cookie_problem)
+{
+	$anvil->Log->entry({
+		source    => $THIS_FILE,
+		line      => __LINE__,
+		level     => 0,
+		'print'   => 1,
+		priority  => "err",
+		key       => "error_0305"
+	});
+	$anvil->nice_exit({ exit_code => 1 });
+}
+
 # Read in any CGI variables, if needed.
 $anvil->Get->cgi();