Implement some very basic methods to prevent overloading

frontend/modules/api/search.php

@@ -25,13 +25,18 @@ else
 	$terms = explode(" ", $query);
 	
 	$db_query_terms = array();
+	$valid_term = false;
 	
 	foreach($terms as $term)
 	{
 		$db_query_terms[] = "`Title` LIKE ?";
+		$term = str_replace("%", "\%", $term);
+		$valid_term = $valid_term || (strlen($term) > 2);
 		$db_query_arguments[] = "%{$term}%";
 	}
 	
+	if($valid_term)
+	{
 		$db_query = implode(" AND ", $db_query_terms);
 		array_unshift($db_query_arguments, '');
 		unset($db_query_arguments[0]);
@@ -53,4 +58,11 @@ else
 		{
 			$sPageContents = json_encode(array("error" => "No results found for the specified query.", "query" => $query));
 		}
+	}
+	else
+	{
+		die(json_encode(array(
+			"error" => "No valid search query specified."
+		)));
+	}
 }