setools/setoolsgui/typemodel.py
Chris PeBenito 61613cf3f4 apol: adjust models to handle invalid indices in data().
Infrequently data() is called with an invalid index and then apol crashes.
2016-04-21 10:07:12 -04:00

80 lines
2.4 KiB
Python

# Copyright 2016, Tresys Technology, LLC
#
# This file is part of SETools.
#
# SETools is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 2.1 of
# the License, or (at your option) any later version.
#
# SETools 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with SETools. If not, see
# <http://www.gnu.org/licenses/>.
#
from collections import defaultdict
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPalette, QTextCursor
from setools.policyrep.exception import MLSDisabled
from .details import DetailsPopup
from .models import SEToolsTableModel
def type_detail(parent, type_):
"""
Create a dialog box for type details.
Parameters:
parent The parent Qt Widget
type_ The type
"""
detail = DetailsPopup(parent, "Type detail: {0}".format(type_))
detail.append_header("Permissive: {0}\n".format("Yes" if type_.ispermissive else "No"))
attrs = sorted(type_.attributes())
detail.append_header("Attributes ({0}):".format(len(attrs)))
for a in attrs:
detail.append(" {0}".format(a))
aliases = sorted(type_.aliases())
detail.append_header("\nAliases ({0}):".format(len(aliases)))
for a in aliases:
detail.append(" {0}".format(a))
detail.show()
class TypeTableModel(SEToolsTableModel):
"""Table-based model for types."""
headers = defaultdict(str, {0: "Name", 1: "Attributes", 2: "Aliases", 3: "Permissive"})
def data(self, index, role):
if self.resultlist and index.isValid():
row = index.row()
col = index.column()
item = self.resultlist[row]
if role == Qt.DisplayRole:
if col == 0:
return str(item)
elif col == 1:
return ", ".join(sorted(str(a) for a in item.attributes()))
elif col == 2:
return ", ".join(sorted(str(a) for a in item.aliases()))
elif col == 3 and item.ispermissive:
return "Permissive"
elif role == Qt.UserRole:
return item