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authorIvan Alejandro <ivanalejandro0@gmail.com>2014-05-21 18:18:58 -0300
committerIvan Alejandro <ivanalejandro0@gmail.com>2014-05-21 18:45:54 -0300
commitd0a9ecf0cba998b44a216c5cdf1800eea152f379 (patch)
tree1fd1c072a004719bc101e74e63e7c8c7219cd1c2 /src/leap/bitmask/util/credentials.py
parent2ba353fbc87eb81dde2f169b8facdb2104107f70 (diff)
Update username regex to support the same as webapp.
Rename password util to credentials and add a username check helper. Move the username regexp to the credentials module. Closes #5695.
Diffstat (limited to 'src/leap/bitmask/util/credentials.py')
-rw-r--r--src/leap/bitmask/util/credentials.py81
1 files changed, 81 insertions, 0 deletions
diff --git a/src/leap/bitmask/util/credentials.py b/src/leap/bitmask/util/credentials.py
new file mode 100644
index 00000000..a661bfb0
--- /dev/null
+++ b/src/leap/bitmask/util/credentials.py
@@ -0,0 +1,81 @@
+# -*- coding: utf-8 -*-
+# credentials.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/>.
+
+"""
+Credentials utilities
+"""
+from PySide import QtCore, QtGui
+
+WEAK_PASSWORDS = ("123456", "qweasd", "qwerty", "password")
+USERNAME_REGEX = r"^[A-Za-z][A-Za-z\d_\-\.]+[A-Za-z]$"
+
+USERNAME_VALIDATOR = QtGui.QRegExpValidator(QtCore.QRegExp(USERNAME_REGEX))
+
+
+def username_checks(username):
+ # translation helper
+ _tr = QtCore.QObject().tr
+
+ message = None
+
+ if message is None and len(username) < 2:
+ message = _tr("Username must have at least 2 characters")
+
+ valid = USERNAME_VALIDATOR.validate(username, 0)
+ valid_username = valid[0] == QtGui.QValidator.State.Acceptable
+ if message is None and not valid_username:
+ message = _tr("Invalid username")
+
+ return message is None, message
+
+
+def 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 not password:
+ message = _tr("You can't use an empty password")
+
+ 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