1 files changed, 68 insertions, 0 deletions
diff --git a/sites/all/modules/ctools/includes/uuid.inc b/sites/all/modules/ctools/includes/uuid.inc
new file mode 100644
index 000000000..6e4c42c32
--- /dev/null
+++ b/sites/all/modules/ctools/includes/uuid.inc
@@ -0,0 +1,68 @@
+<?php
+
+/**
+ * @file
+ * Enables ctools generated modules to use UUIDs without the UUID module enabled.
+ * Per the ctools.module, this file only gets included if UUID doesn't exist.
+ */
+
+/**
+ * Pattern for detecting a valid UUID.
+ */
+define('UUID_PATTERN', '[0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12}');
+
+/**
+ * Generates a UUID using the Windows internal GUID generator.
+ *
+ * @see http://php.net/com_create_guid
+ */
+function _ctools_uuid_generate_com() {
+  // Remove {} wrapper and make lower case to keep result consistent.
+  return drupal_strtolower(trim(com_create_guid(), '{}'));
+}
+
+/**
+ * Generates an universally unique identifier using the PECL extension.
+ */
+function _ctools_uuid_generate_pecl() {
+  $uuid_type = UUID_TYPE_DEFAULT;
+  return uuid_create($uuid_type);
+}
+
+/**
+ * Generates a UUID v4 using PHP code.
+ *
+ * Based on code from @see http://php.net/uniqid#65879 , but corrected.
+ */
+function _ctools_uuid_generate_php() {
+  // The field names refer to RFC 4122 section 4.1.2.
+  return sprintf('%04x%04x-%04x-4%03x-%04x-%04x%04x%04x',
+    // 32 bits for "time_low".
+    mt_rand(0, 65535), mt_rand(0, 65535),
+    // 16 bits for "time_mid".
+    mt_rand(0, 65535),
+    // 12 bits after the 0100 of (version) 4 for "time_hi_and_version".
+    mt_rand(0, 4095),
+    bindec(substr_replace(sprintf('%016b', mt_rand(0, 65535)), '10', 0, 2)),
+    // 8 bits, the last two of which (positions 6 and 7) are 01, for "clk_seq_hi_res"
+    // (hence, the 2nd hex digit after the 3rd hyphen can only be 1, 5, 9 or d)
+    // 8 bits for "clk_seq_low" 48 bits for "node".
+    mt_rand(0, 65535), mt_rand(0, 65535), mt_rand(0, 65535)
+  );
+}
+
+// This is wrapped in an if block to avoid conflicts with PECL's uuid_is_valid().
+/**
+ * Check that a string appears to be in the format of a UUID.
+ *
+ * @param $uuid
+ *  The string to test.
+ *
+ * @return
+ *   TRUE if the string is well formed.
+ */
+if (!function_exists('uuid_is_valid')) {
+  function uuid_is_valid($uuid) {
+    return preg_match('/^' . UUID_PATTERN . '$/', $uuid);
+  }
+}