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authorTomás Touceda <chiiph@leap.se>2013-08-23 11:27:26 -0300
committerTomás Touceda <chiiph@leap.se>2013-08-23 11:27:26 -0300
commit2ecf4dd80ecae9aaa416a5567d9ad102482fc4e5 (patch)
tree8320eb9e98e1122ed1441cfeb27ecea6e07a60dd /src/leap/bitmask/gui/preferenceswindow.py
parent0b449949cc31f25cd17ff2bdf2d9b0539499f8f8 (diff)
parent7d10092df85a91db5e40b0eb36d4bb2cc67f6d05 (diff)
Merge remote-tracking branch 'ivan/feature/2796_create-preferences-panel' into develop
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diff --git a/src/leap/bitmask/gui/preferenceswindow.py b/src/leap/bitmask/gui/preferenceswindow.py
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+# -*- coding: utf-8 -*-
+# preferenceswindow.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/>.
+
+"""
+Preferences window
+"""
+import logging
+
+from functools import partial
+from PySide import QtGui
+
+from leap.bitmask.gui.ui_preferences import Ui_Preferences
+from leap.soledad.client import NoStorageSecret
+from leap.bitmask.crypto.srpauth import SRPAuthBadPassword
+
+logger = logging.getLogger(__name__)
+
+
+class PreferencesWindow(QtGui.QDialog):
+ """
+ Window that displays the preferences.
+ """
+
+ WEAK_PASSWORDS = ("123456", "qweasd", "qwerty", "password")
+
+ def __init__(self, parent, srp_auth, soledad):
+ """
+ :param parent: parent object of the PreferencesWindow.
+ :parent type: QWidget
+ :param srp_auth: SRPAuth object configured in the main app.
+ :type srp_auth: SRPAuth
+ :param soledad: Soledad object configured in the main app.
+ :type soledad: Soledad
+ """
+ QtGui.QDialog.__init__(self, parent)
+
+ self._srp_auth = srp_auth
+ self._soledad = soledad
+
+ # Load UI
+ self.ui = Ui_Preferences()
+ self.ui.setupUi(self)
+ self.ui.lblPasswordChangeStatus.setVisible(False)
+
+ # Connections
+ self.ui.pbChangePassword.clicked.connect(self._change_password)
+
+ def _basic_password_checks(self, 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)
+ """
+ message = None
+
+ if message is None and password != password2:
+ message = self.tr("Passwords don't match")
+
+ if message is None and len(password) < 6:
+ message = self.tr("Password too short")
+
+ if message is None and password in self.WEAK_PASSWORDS:
+ message = self.tr("Password too easy")
+
+ if message is None and username == password:
+ message = self.tr("Password equal to username")
+
+ return message is None, message
+
+ def _set_password_change_status(self, status, error=False, success=False):
+ """
+ Sets the status label for the password change.
+
+ :param status: status message to display, can be HTML
+ :type status: str
+ """
+ if error:
+ status = "<font color='red'><b>%s</b></font>" % (status,)
+ elif success:
+ status = "<font color='green'><b>%s</b></font>" % (status,)
+
+ self.ui.lblPasswordChangeStatus.setVisible(True)
+ self.ui.lblPasswordChangeStatus.setText(status)
+
+ def _set_changing_password(self, disable):
+ """
+ Enables or disables the widgets in the password change group box.
+
+ :param disable: True if the widgets should be disabled and
+ it displays the status label that shows that is
+ changing the password.
+ False if they should be enabled.
+ :type disable: bool
+ """
+ if disable:
+ self._set_password_change_disable(self.tr("Changing password..."))
+
+ self.ui.leCurrentPassword.setEnabled(not disable)
+ self.ui.leNewPassword.setEnabled(not disable)
+ self.ui.leNewPassword2.setEnabled(not disable)
+ self.ui.pbChangePassword.setEnabled(not disable)
+
+ def _change_password(self):
+ """
+ Changes the user's password if the inputboxes are correctly filled.
+ """
+ username = self._srp_auth.get_username()
+ current_password = self.ui.leCurrentPassword.text()
+ new_password = self.ui.leNewPassword.text()
+ new_password2 = self.ui.leNewPassword2.text()
+
+ ok, msg = self._basic_password_checks(
+ username, new_password, new_password2)
+
+ if not ok:
+ self._set_changing_password(False)
+ self._set_password_change_status(msg, error=True)
+ self.ui.leNewPassword.setFocus()
+ return
+
+ self._set_changing_password(True)
+ d = self._srp_auth.change_password(current_password, new_password)
+ d.addCallback(partial(self._change_password_success, new_password))
+ d.addErrback(self._change_password_problem)
+
+ def _change_password_success(self, new_password, _):
+ """
+ Callback used to display a successfully performed action.
+
+ :param new_password: the new password for the user.
+ :type new_password: str.
+ :param _: the returned data from self._srp_auth.change_password
+ Ignored
+ """
+ logger.debug("SRP password changed successfully.")
+ try:
+ self._soledad.change_passphrase(str(new_password))
+ logger.debug("Soledad password changed successfully.")
+ except NoStorageSecret:
+ logger.debug(
+ "No storage secret for password change in Soledad.")
+
+ self._set_password_change_status(
+ self.tr("Password changed successfully."), success=True)
+ self._clear_inputs()
+ self._set_changing_password(False)
+
+ def _change_password_problem(self, failure):
+ """
+ Errback called if there was a problem with the deferred.
+ Also is used to display an error message.
+
+ :param failure: the cause of the method failed.
+ :type failure: twisted.python.Failure
+ """
+ logger.error("Error changing password: %s", (failure, ))
+ problem = self.tr("There was a problem changing the password.")
+
+ if failure.check(SRPAuthBadPassword):
+ problem = self.tr("You did not enter a correct current password.")
+
+ self._set_password_change_status(problem, error=True)
+
+ self._set_changing_password(False)
+ failure.trap(Exception)
+
+ def _clear_inputs(self):
+ """
+ Clear the contents of the inputs.
+ """
+ self.ui.leCurrentPassword.setText("")
+ self.ui.leNewPassword.setText("")
+ self.ui.leNewPassword2.setText("")