update

inc/Hura8/System/Security/DataClean.php

@@ -0,0 +1,126 @@
+<?php
+
+namespace Hura8\System\Security;
+
+
+class DataClean
+{
+
+    /**
+     * @description limit max length. limitLength("toi ten nguyen", 10) => "toi ten ng"
+     * @param string $text
+     * @param int $max_length
+     * @return string
+     */
+    public static function limitLength(string $text, int $max_length = 100 ) : string
+    {
+        if(strlen($text) <= $max_length) {
+            return $text;
+        }
+
+        return substr($text, 0, $max_length-1);
+    }
+
+
+    /**
+     * @description limit max length but keep full words. limitLengthFullWords("toi ten nguyen", 10) => "toi ten"
+     * @param string $text
+     * @param int $max_length
+     * @return string
+     */
+    public static function limitLengthFullWords(string $text, int $max_length = 100 ) : string
+    {
+
+        if(strlen($text) <= $max_length) {
+            return $text;
+        }
+
+        $char_at_max_length = $text[$max_length-1];
+        if($char_at_max_length == ' ') {
+            return substr($text, 0, $max_length-1);
+        }
+
+        //else fall back to the last space
+        $words = explode(" ", substr($text, 0, $max_length-1));
+        array_pop($words);
+
+        return join(" ", $words);
+    }
+
+
+    /**
+     * @param $input_list array
+     * @param $type string
+     * @return array
+     */
+    public static function makeListOfInputSafe(array $input_list, $type){
+        if(!sizeof($input_list)) return [];
+
+        $result = [];
+        foreach ($input_list as $key => $str) {
+            $result[$key] = self::makeInputSafe($str, $type);
+        }
+
+        return $result;
+    }
+
+
+    /**
+     * @param $input string data to process
+     * @param $type string, type of data to validate against, enum : int|double|email|id|string|date|plain
+     * @return mixed
+     */
+    public static function makeInputSafe($input, $type){
+
+        if(is_array($input)) {
+            return $input;
+        }
+
+        if ( $type == DataType::ID ) {
+            //is $input the database item_id ?
+            return preg_replace('/[^a-z0-9_\-\.]/i', '', $input);
+        }
+
+        if ( $type == DataType::EMAIL ) {
+            return filter_var($input, FILTER_VALIDATE_EMAIL) ? $input : '';
+        }
+
+        if ( $type == DataType::INTEGER ) {
+            // support negative number
+            return (int) preg_replace('/[^0-9\-]/', '', $input);
+        }
+
+        if ( $type == DataType::DOUBLE ) {
+            // support negative number
+            $input = preg_replace('/[^0-9,\-]/', '', $input);
+            //convert vietnamese style , to . for percentage
+            $input = str_replace(",", ".", $input);
+
+            return (double) $input;
+        }
+
+        if ( $type == DataType::DATE ) {
+            // support pattern:
+            // date = d-m-Y
+            // datetime = d-m-Y H:i:a
+            $pattern = "/([0-9]{2})-([0-9]{2})-([0-9]{2,4})(\s)?([0-9]{1,2}:[0-9]{1,2}(:[0-9]{1,2})?)?/i";
+            return preg_replace($pattern, '', $input);
+        }
+
+        if ( $type == DataType::PLAIN_TEXT || $type == DataType::STRING ) {
+            return strip_tags($input);
+        }
+
+        if ( $type == DataType::NON_VIETNAMESE ) {
+            return preg_replace('/[^a-z0-9_\s\-]/i', '', $input);
+        }
+
+        if ( $type == DataType::RICH_TEXT ) {
+            return $input;
+        }
+
+        return null;
+    }
+
+
+}