'lib' rewritten.

lib/Crypto/AbstractAlgorithm.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * Nextcloud - user_sql
+ *
+ * @copyright 2018 Marcin Łojewski <dev@mlojewski.me>
+ * @author    Marcin Łojewski <dev@mlojewski.me>
+ *
+ * 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\UserSQL\Crypto;
+
+use OCP\IL10N;
+
+/**
+ * The abstract password algorithm class.
+ * Each algorithm should extend this class, as it provides very base
+ * functionality which seems to be necessary for every implementation.
+ *
+ * @author Marcin Łojewski <dev@mlojewski.me>
+ */
+abstract class AbstractAlgorithm implements IPasswordAlgorithm
+{
+    /**
+     * @var IL10N The localization service.
+     */
+    private $localization;
+
+    /**
+     * The class constructor.
+     *
+     * @param IL10N $localization The localization service.
+     */
+    public function __construct(IL10N $localization)
+    {
+        $this->localization = $localization;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getVisibleName()
+    {
+        return $this->localization->t($this->getAlgorithmName());
+    }
+
+    /**
+     * Get the algorithm name.
+     *
+     * @return string The algorithm name.
+     */
+    protected abstract function getAlgorithmName();
+
+    /**
+     * @inheritdoc
+     */
+    public function checkPassword($password, $dbHash)
+    {
+        return hash_equals($dbHash, $this->getPasswordHash($password));
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public abstract function getPasswordHash($password);
+}