Merge remote-tracking branch 'gallery3/master'

1 files changed, 54 insertions, 0 deletions

diff --git a/modules/gallery/helpers/random.php b/modules/gallery/helpers/random.php
new file mode 100644
index 00000000..6016df7b
--- /dev/null
+++ b/modules/gallery/helpers/random.php
@@ -0,0 +1,54 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2011 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+class random_Core {
+  /**
+   * Return a random 32 bit hash value.
+   * @param string extra entropy data
+   */
+  static function hash($entropy="") {
+    return md5($entropy . uniqid(mt_rand(), true));
+  }
+
+  /**
+   * Return a random hexadecimal string of the given length.
+   * @param int the desired length of the string
+   */
+  static function string($length) {
+    return substr(random::hash(), 0, $length);
+  }
+
+  /**
+   * Return a random floating point number between 0 and 1
+   */
+  static function percent() {
+    return ((float)mt_rand()) / (float)mt_getrandmax();
+  }
+
+  /**
+   * Return a random number between $min and $max.  If $min and $max are not specified,
+   * return a random number between 0 and mt_getrandmax()
+   */
+  static function int($min=null, $max=null) {
+    if ($min || $max) {
+      return mt_rand($min, $max);
+    }
+    return mt_rand();
+  }
+}
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