1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
# SPDX-License-Identifier: LGPL-2.1-only
from contextlib import suppress
from PyQt6 import QtWidgets
import setools
from .. import models
from .list import ListWidget
__all__ = ('PermissionList',)
class PermissionList(ListWidget):
"""
A widget providing a QListView widget for selecting permissions.
Optionally the list can be filtered down by providing a list of
classes using the set_classes() method.
"""
def __init__(self, title: str, query: setools.PolicyQuery, attrname: str,
enable_equal: bool = True, enable_subset: bool = False,
parent: QtWidgets.QWidget | None = None) -> None:
self.perm_model = models.StringList()
super().__init__(title, query, attrname, self.perm_model, enable_equal=enable_equal,
enable_subset=enable_subset, parent=parent)
self.set_classes()
self.criteria_any.setToolTip("Any selected permission will match.")
self.criteria_any.setWhatsThis("<b>Any selected permission will match.</b>")
if enable_equal:
self.criteria_equal.setToolTip("The selected permissions must exactly match.")
self.criteria_equal.setWhatsThis("<b>The selected permissions must exactly match.</b>")
if enable_subset:
self.criteria_subset.setToolTip("The selected permissions must be a subset to match.")
self.criteria_subset.setWhatsThis(
"<b>The selected permissions must be a subset to match.</b>")
def set_classes(self, classes: list[setools.ObjClass] | None = None) -> None:
"""
Set classes. The widget will show the intersection of all selected
classes.
"""
permlist = set()
if classes is None:
classes = []
# start will all permissions.
for cls in self.query.policy.classes():
permlist.update(cls.perms)
with suppress(setools.exception.NoCommon):
permlist.update(cls.common.perms)
# create intersection
for cls in classes:
cls_perms = set(cls.perms)
with suppress(setools.exception.NoCommon):
cls_perms.update(cls.common.perms)
permlist.intersection_update(cls_perms)
self.perm_model.item_list = sorted(permlist)
# Changing the classes clears the perm selection.
# Update query accordingly.
setattr(self.query, self.criteria.objectName(), None)
#
# Workspace methods
#
def save(self, settings: dict) -> None:
super().save(settings)
with suppress(AttributeError):
settings[self.criteria_equal.objectName()] = self.criteria_equal.isChecked()
def load(self, settings: dict) -> None:
with suppress(AttributeError, KeyError):
self.criteria_equal.setChecked(settings[self.criteria_equal.objectName()])
super().load(settings)
# Changing the classes clears the perm selection.
# Update query accordingly.
setattr(self.query, self.criteria.objectName(), None)
if __name__ == '__main__':
import sys
import warnings
import pprint
import logging
from .objclass import ObjClassList
logging.basicConfig(level=logging.DEBUG,
format='%(asctime)s|%(levelname)s|%(name)s|%(message)s')
warnings.simplefilter("default")
q = setools.TERuleQuery(setools.SELinuxPolicy())
app = QtWidgets.QApplication(sys.argv)
mw = QtWidgets.QMainWindow()
window = QtWidgets.QWidget()
layout = QtWidgets.QHBoxLayout(window)
widget1 = ObjClassList("Test Classes", q, "tclass", parent=window)
widget2 = PermissionList("Test Permissions", q, "perms", parent=window,
enable_equal=True, enable_subset=True)
widget1.selectionChanged.connect(widget2.set_classes)
layout.addWidget(widget1)
layout.addWidget(widget2)
window.setToolTip("test tooltip")
window.setWhatsThis("test what's this")
mw.setCentralWidget(window)
mw.resize(window.size())
whatsthis = QtWidgets.QWhatsThis.createAction(mw)
mw.menuBar().addAction(whatsthis) # type: ignore[union-attr]
mw.show()
rc = app.exec()
print("Classes:")
pprint.pprint(q.tclass)
sys.exit(rc)
|
