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-rw-r--r--src/leap/bitmask/util/password.py58
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diff --git a/src/leap/bitmask/util/password.py b/src/leap/bitmask/util/password.py
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+++ b/src/leap/bitmask/util/password.py
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+# -*- coding: utf-8 -*-
+# password.py
+# Copyright (C) 2013 LEAP
+#
+# 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 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+"""
+Password utilities
+"""
+from PySide import QtCore
+
+WEAK_PASSWORDS = ("123456", "qweasd", "qwerty", "password")
+
+
+def basic_password_checks(username, password, password2):
+ """
+ Performs basic password checks to avoid really easy passwords.
+
+ :param username: username provided at the registrarion form
+ :type username: str
+ :param password: password from the registration form
+ :type password: str
+ :param password2: second password from the registration form
+ :type password: str
+
+ :returns: True and empty message if all the checks pass,
+ False and an error message otherwise
+ :rtype: tuple(bool, str)
+ """
+ # translation helper
+ _tr = QtCore.QObject().tr
+
+ message = None
+
+ if message is None and password != password2:
+ message = _tr("Passwords don't match")
+
+ if message is None and len(password) < 6:
+ message = _tr("Password too short")
+
+ if message is None and password in WEAK_PASSWORDS:
+ message = _tr("Password too easy")
+
+ if message is None and username == password:
+ message = _tr("Password equal to username")
+
+ return message is None, message