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Internal/package-security/NastyCode.php

@@ -0,0 +1,64 @@
+<?php namespace ZN\Security;
+/**
+ * ZN PHP Web Framework
+ * 
+ * "Simplicity is the ultimate sophistication." ~ Da Vinci
+ * 
+ * @package ZN
+ * @license MIT [http://opensource.org/licenses/MIT]
+ * @author  Ozan UYKUN [ozan@znframework.com]
+ */
+
+use ZN\Singleton;
+
+class NastyCode
+{
+    /**
+     * Encode Nasty Code
+     * 
+     * @param string $string
+     * @param mixed  $badWords   = NULL
+     * @param mixed  $changeChar = '[badchars]'
+     * 
+     * @return string
+     */
+    public static function encode(string $string, $badWords = NULL, $changeChar = '[badchars]') : string
+    {
+        if( empty($badWords) )
+        {
+            $secnc      = Properties::$ncEncode;
+            $badWords   = $secnc['badChars'];
+            $changeChar = $secnc['changeBadChars'];
+        }
+
+        $regex = Singleton::class('ZN\Regex');
+
+        if( ! is_array($badWords) )
+        {
+            return $string = $regex->replace($badWords, $changeChar, $string, 'xi');
+        }
+
+        $ch = '';
+        $i  = 0;
+
+        foreach( $badWords as $value )
+        {
+            if( ! is_array($changeChar) )
+            {
+                $ch = $changeChar;
+            }
+            else
+            {
+                if( isset($changeChar[$i]) )
+                {
+                    $ch = $changeChar[$i];
+                    $i++;
+                }
+            }
+
+            $string = $regex->replace($value, $ch, $string, 'xi');
+        }
+
+        return $string;
+    }
+}