From 3994b3a26c252cba4070337b036e3a1c12c81369 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Sat, 23 May 2015 03:42:11 -0400
Subject: [PATCH] Installer: Use openssl_random_pseudo_bytes() (if available) to generate des_key (#1490402)
---
program/lib/Roundcube/rcube_utils.php | 30 ++++++++++++++++++++++++++++++
1 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/program/lib/Roundcube/rcube_utils.php b/program/lib/Roundcube/rcube_utils.php
index 0ca2a9e..4db57b4 100644
--- a/program/lib/Roundcube/rcube_utils.php
+++ b/program/lib/Roundcube/rcube_utils.php
@@ -1138,4 +1138,34 @@
return $url;
}
+
+ /**
+ * Generate a ramdom string
+ *
+ * @param int String length
+ *
+ * @return string The generated random string
+ */
+ public static function random_bytes($length)
+ {
+ if (function_exists('openssl_random_pseudo_bytes')) {
+ $random = openssl_random_pseudo_bytes(ceil($length / 2));
+ $random = bin2hex($random);
+
+ // if the length wasn't even...
+ if ($length < strlen($random)) {
+ $random = substr($random, 0, $length);
+ }
+ }
+ else {
+ $alpha = 'ABCDEFGHIJKLMNOPQERSTUVXYZabcdefghijklmnopqrtsuvwxyz0123456789+*%&?!$-_=';
+ $random = '';
+
+ for ($i = 0; $i < $length; $i++) {
+ $random .= $alpha[rand(0, strlen($alpha)-1)];
+ }
+ }
+
+ return $random;
+ }
}
--
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