Implement account edit; add SessionHelper, PasswordHelper and ActionResult

src/Common/PasswordHelper.php

@@ -0,0 +1,27 @@
+<?php
+declare(strict_types=1);
+
+namespace MailAccountAdmin\Common;
+
+class PasswordHelper
+{
+    public function hashPassword(string $password): string
+    {
+        return password_hash($password, PASSWORD_DEFAULT);
+    }
+
+    public function verifyPassword(string $password, string $hash): bool
+    {
+        return password_verify($password, $hash);
+    }
+
+    public function getPasswordHashType(string $passwordHash): string
+    {
+        if ($passwordHash === '') {
+            return 'empty';
+        }
+
+        $passwordHashInfo = password_get_info($passwordHash);
+        return $passwordHashInfo['algoName'] ?? 'unknown';
+    }
+}