Renamed classes for full PSR-2 compliance, some cleanup

2016-08-09 11:54:42 +02:00
parent 6e558aab0a
commit b45bef8388
52 changed files with 1943 additions and 1505 deletions
--- a/lib/Filter.php
+++ b/lib/Filter.php
@@ -0,0 +1,106 @@
+<?php
+/**
+ * PrivateBin
+ *
+ * a zero-knowledge paste bin
+ *
+ * @link      https://github.com/PrivateBin/PrivateBin
+ * @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
+ * @license   https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
+ * @version   0.22
+ */
+
+namespace PrivateBin;
+
+use PrivateBin\I18n;
+use Exception;
+
+/**
+ * Filter
+ *
+ * Provides data filtering functions.
+ */
+class Filter
+{
+    /**
+     * strips slashes deeply
+     *
+     * @access public
+     * @static
+     * @param  mixed $value
+     * @return mixed
+     */
+    public static function stripslashesDeep($value)
+    {
+        return is_array($value) ?
+            array_map('self::stripslashesDeep', $value) :
+            stripslashes($value);
+    }
+
+    /**
+     * format a given time string into a human readable label (localized)
+     *
+     * accepts times in the format "[integer][time unit]"
+     *
+     * @access public
+     * @static
+     * @param  string $time
+     * @throws Exception
+     * @return string
+     */
+    public static function formatHumanReadableTime($time)
+    {
+        if (preg_match('/^(\d+) *(\w+)$/', $time, $matches) !== 1) {
+            throw new Exception("Error parsing time format '$time'", 30);
+        }
+        switch ($matches[2]) {
+            case 'sec':
+                $unit = 'second';
+                break;
+            case 'min':
+                $unit = 'minute';
+                break;
+            default:
+                $unit = rtrim($matches[2], 's');
+        }
+        return I18n::_(array('%d ' . $unit, '%d ' . $unit . 's'), (int) $matches[1]);
+    }
+
+    /**
+     * format a given number of bytes in IEC 80000-13:2008 notation (localized)
+     *
+     * @access public
+     * @static
+     * @param  int $size
+     * @return string
+     */
+    public static function formatHumanReadableSize($size)
+    {
+        $iec = array('B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB');
+        $i = 0;
+        while (($size / 1024) >= 1) {
+            $size = $size / 1024;
+            $i++;
+        }
+        return number_format($size, ($i ? 2 : 0), '.', ' ') . ' ' . I18n::_($iec[$i]);
+    }
+
+    /**
+     * fixed time string comparison operation to prevent timing attacks
+     * https://crackstation.net/hashing-security.htm?=rd#slowequals
+     *
+     * @access public
+     * @static
+     * @param  string $a
+     * @param  string $b
+     * @return bool
+     */
+    public static function slowEquals($a, $b)
+    {
+        $diff = strlen($a) ^ strlen($b);
+        for ($i = 0; $i < strlen($a) && $i < strlen($b); $i++) {
+            $diff |= ord($a[$i]) ^ ord($b[$i]);
+        }
+        return $diff === 0;
+    }
+}