Changeset 42130 for trunk/src/wp-includes/random_compat/random_bytes_com_dotnet.php

Timestamp:

11/08/2017 11:47:04 AM (7 years ago)

Author:

dd32

Message:

External Libraries: Update Random_Compat from 1.2.1 to 2.0.11.

Notably this fixes PHP7 parse errors of the files and removes the OpenSSL functionality.
Full Changes: ​https://github.com/paragonie/random_compat/compare/v1.2.1...v2.0.11

Props jrdelarosa.
See #42439.

File:

• trunk/src/wp-includes/random_compat/random_bytes_com_dotnet.php (modified) (2 diffs)

trunk/src/wp-includes/random_compat/random_bytes_com_dotnet.php

@@ -6 +6 @@
  * The MIT License (MIT)
  * 
- * Copyright (c) 2015 Paragon Initiative Enterprises
+ * Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -27 +27 @@
  */
 
-/**
- * Windows with PHP < 5.3.0 will not have the function
- * openssl_random_pseudo_bytes() available, so let's use
- * CAPICOM to work around this deficiency.
- * 
- * @param int $bytes
- * 
- * @throws Exception
- * 
- * @return string
- */
-function random_bytes($bytes)
-{
-    try {
-        $bytes = RandomCompat_intval($bytes);
-    } catch (TypeError $ex) {
-        throw new TypeError(
-            'random_bytes(): $bytes must be an integer'
+if (!is_callable('random_bytes')) {
+    /**
+     * Windows with PHP < 5.3.0 will not have the function
+     * openssl_random_pseudo_bytes() available, so let's use
+     * CAPICOM to work around this deficiency.
+     *
+     * @param int $bytes
+     *
+     * @throws Exception
+     *
+     * @return string
+     */
+    function random_bytes($bytes)
+    {
+        try {
+            $bytes = RandomCompat_intval($bytes);
+        } catch (TypeError $ex) {
+            throw new TypeError(
+                'random_bytes(): $bytes must be an integer'
+            );
+        }
+
+        if ($bytes < 1) {
+            throw new Error(
+                'Length must be greater than 0'
+            );
+        }
+
+        $buf = '';
+        if (!class_exists('COM')) {
+            throw new Error(
+                'COM does not exist'
+            );
+        }
+        $util = new COM('CAPICOM.Utilities.1');
+        $execCount = 0;
+
+        /**
+         * Let's not let it loop forever. If we run N times and fail to
+         * get N bytes of random data, then CAPICOM has failed us.
+         */
+        do {
+            $buf .= base64_decode($util->GetRandom($bytes, 0));
+            if (RandomCompat_strlen($buf) >= $bytes) {
+                /**
+                 * Return our random entropy buffer here:
+                 */
+                return RandomCompat_substr($buf, 0, $bytes);
+            }
+            ++$execCount;
+        } while ($execCount < $bytes);
+
+        /**
+         * If we reach here, PHP has failed us.
+         */
+        throw new Exception(
+            'Could not gather sufficient random data'
         );
     }
-
-    if ($bytes < 1) {
-        throw new Error(
-            'Length must be greater than 0'
-        );
-    }
-
-    $buf = '';
-    $util = new COM('CAPICOM.Utilities.1');
-    $execCount = 0;
-
-    /**
-     * Let's not let it loop forever. If we run N times and fail to
-     * get N bytes of random data, then CAPICOM has failed us.
-     */
-    do {
-        $buf .= base64_decode($util->GetRandom($bytes, 0));
-        if (RandomCompat_strlen($buf) >= $bytes) {
-            /**
-             * Return our random entropy buffer here:
-             */
-            return RandomCompat_substr($buf, 0, $bytes);
-        }
-        ++$execCount; 
-    } while ($execCount < $bytes);
-
-    /**
-     * If we reach here, PHP has failed us.
-     */
-    throw new Exception(
-        'Could not gather sufficient random data'
-    );
 }