update

modules/pshowsso/vendor/ircmaxell/security-lib/lib/SecurityLib/Util.php

@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * The Mixer strategy interface.
+ *
+ * All mixing strategies must implement this interface
+ *
+ * PHP version 5.3
+ *
+ * @category   PHPPasswordLib
+ * @package    Hash
+ * @author     Anthony Ferrara <ircmaxell@ircmaxell.com>
+ * @copyright  2011 The Authors
+ * @license    http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @version    Build @@version@@
+ */
+namespace SecurityLib;
+
+/**
+ * The Utility trait.
+ *
+ * Contains methods used internally to this library.
+ *
+ * @category   PHPPasswordLib
+ * @package    Random
+ * @author     Scott Arciszewski <scott@arciszewski.me>
+ * @license    http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @codeCoverageIgnore
+ */
+abstract class Util
+{
+    /**
+     * Return the length of a string, even in the presence of
+     * mbstring.func_overload
+     *
+     * @param string $string the string we're measuring
+     * @return int
+     */
+    public static function safeStrlen($string)
+    {
+        if (\function_exists('mb_strlen')) {
+            return \mb_strlen($string, '8bit');
+        }
+        return \strlen($string);
+    }
+    /**
+     * Return a string contained within a string, even in the presence of
+     * mbstring.func_overload
+     *
+     * @param string $string The string we're searching
+     * @param int $start What offset should we begin
+     * @param int|null $length How long should the substring be?
+     *                         (default: the remainder)
+     * @return string
+     */
+    public static function safeSubstr($string, $start = 0, $length = null)
+    {
+        if (\function_exists('mb_substr')) {
+            return \mb_substr($string, $start, $length, '8bit');
+        } elseif ($length !== null) {
+            return \substr($string, $start, $length);
+        }
+        return \substr($string, $start);
+    }
+}