1 files changed, 27 insertions, 0 deletions
diff --git a/lib/Minz/User.php b/lib/Minz/User.php
new file mode 100644
index 000000000..252584e83
--- /dev/null
+++ b/lib/Minz/User.php
@@ -0,0 +1,27 @@
+<?php
+
+/**
+ * The Minz_User class handles the user information.
+ */
+final class Minz_User {
+
+	public const INTERNAL_USER = '_';
+
+	public const CURRENT_USER = 'currentUser';
+
+	/**
+	 * @return string the name of the current user, or null if there is none
+	 */
+	public static function name(): ?string {
+		$currentUser = trim(Minz_Session::param(Minz_User::CURRENT_USER, ''));
+		return $currentUser === '' ? null : $currentUser;
+	}
+
+	/**
+	 * @param string $name the name of the new user. Set to empty string to clear the user.
+	 */
+	public static function change(string $name = ''): void {
+		$name = trim($name);
+		Minz_Session::_param(Minz_User::CURRENT_USER, $name === '' ? false : $name);
+	}
+}