1 files changed, 47 insertions, 0 deletions
diff --git a/includes/password/InvalidPassword.php b/includes/password/InvalidPassword.php
new file mode 100644
index 00000000..e45b7744
--- /dev/null
+++ b/includes/password/InvalidPassword.php
@@ -0,0 +1,47 @@
+<?php
+/**
+ * Implements the InvalidPassword class for the MediaWiki software.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+/**
+ * Represents an invalid password hash. It is represented as the empty string (i.e.,
+ * a password hash with no type).
+ *
+ * No two invalid passwords are equal. Comparing anything to an invalid password will
+ * return false.
+ *
+ * @since 1.24
+ */
+class InvalidPassword extends Password {
+	public function crypt( $plaintext ) {
+	}
+
+	public function toString() {
+		return '';
+	}
+
+	public function equals( $other ) {
+		return false;
+	}
+
+	public function needsUpdate() {
+		return false;
+	}
+}