Courier hashes. New traits.

lib/HashAlgorithm/Base/Base64.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * Nextcloud - user_sql
+ * Copyright (C) 2012-2018 Andreas Böhler <dev (at) aboehler (dot) at>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace OCA\user_sql\HashAlgorithm\Base;
+
+/**
+ * Base64 utilities trait.
+ * @author Marcin Łojewski <dev@mlojewski.me>
+ */
+trait Base64
+{
+    /**
+     * Convert hexadecimal message to its base64 form.
+     * @param $hex string Hexadecimal encoded message.
+     * @return string Same message encoded in base64.
+     */
+    private static function hexToBase64($hex)
+    {
+        $hexChr = '';
+        foreach (str_split($hex, 2) as $hexPair) {
+            $hexChr .= chr(hexdec($hexPair));
+        }
+        return base64_encode($hexChr);
+    }
+}