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4.4.0
setoolsgui/apol/objclassquery.py
242 строки
9 KB
Chris PeBenito
Merge pull request #57 from pebenito/apol-tab-metaclass
20 янв 2021, 23:33
Не верифицирован
20 янв 2021, 23:33
16c0696
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# 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/>. # import logging from contextlib import suppress from PyQt5.QtCore import Qt, QSortFilterProxyModel, QStringListModel, QThread from PyQt5.QtGui import QPalette, QTextCursor from PyQt5.QtWidgets import QCompleter, QHeaderView, QMessageBox, QProgressDialog from setools import ObjClassQuery from ..logtosignal import LogHandlerToSignal from ..models import PermListModel, SEToolsListModel, invert_list_selection from ..objclassmodel import ObjClassTableModel, class_detail from .analysistab import AnalysisSection, AnalysisTab from .exception import TabFieldError from .queryupdater import QueryResultsUpdater from .workspace import load_checkboxes, load_lineedits, load_listviews, load_textedits, \ save_checkboxes, save_lineedits, save_listviews, save_textedits class ObjClassQueryTab(AnalysisTab): """ObjClass browser and query tab.""" section = AnalysisSection.Components tab_title = "Object Classes" mlsonly = False def __init__(self, parent, policy, perm_map): super(ObjClassQueryTab, self).__init__(parent) self.log = logging.getLogger(__name__) self.policy = policy self.query = ObjClassQuery(policy) self.setupUi() def __del__(self): with suppress(RuntimeError): self.thread.quit() self.thread.wait(5000) logging.getLogger("setools.objclassquery").removeHandler(self.handler) def setupUi(self): self.load_ui("apol/objclassquery.ui") # populate class list self.class_model = SEToolsListModel(self) self.class_model.item_list = sorted(c for c in self.policy.classes()) self.classes.setModel(self.class_model) # populate commons list self.common_model = SEToolsListModel(self) self.common_model.item_list = sorted(c for c in self.policy.commons()) self.common.setModel(self.common_model) # populate perm list self.perms_model = PermListModel(self, self.policy) self.perms.setModel(self.perms_model) # set up results self.table_results_model = ObjClassTableModel(self) self.sort_proxy = QSortFilterProxyModel(self) self.sort_proxy.setSourceModel(self.table_results_model) self.table_results.setModel(self.sort_proxy) self.table_results.sortByColumn(0, Qt.AscendingOrder) # setup indications of errors on level/range self.errors = set() self.orig_palette = self.name.palette() self.error_palette = self.name.palette() self.error_palette.setColor(QPalette.Base, Qt.red) self.clear_name_error() # set up processing thread self.thread = QThread() self.worker = QueryResultsUpdater(self.query, self.table_results_model) self.worker.moveToThread(self.thread) self.worker.raw_line.connect(self.raw_results.appendPlainText) self.worker.finished.connect(self.update_complete) self.worker.finished.connect(self.thread.quit) self.thread.started.connect(self.worker.update) # create a "busy, please wait" dialog self.busy = QProgressDialog(self) self.busy.setModal(True) self.busy.setRange(0, 0) self.busy.setMinimumDuration(0) self.busy.canceled.connect(self.thread.requestInterruption) self.busy.reset() # update busy dialog from query INFO logs self.handler = LogHandlerToSignal() self.handler.message.connect(self.busy.setLabelText) logging.getLogger("setools.objclassquery").addHandler(self.handler) # Ensure settings are consistent with the initial .ui state self.notes.setHidden(not self.notes_expander.isChecked()) # connect signals self.classes.doubleClicked.connect(self.get_detail) self.classes.get_detail.triggered.connect(self.get_detail) self.name.textEdited.connect(self.clear_name_error) self.name.editingFinished.connect(self.set_name) self.name_regex.toggled.connect(self.set_name_regex) self.common.selectionModel().selectionChanged.connect(self.set_common) self.perms.selectionModel().selectionChanged.connect(self.set_perms) self.invert_perms.clicked.connect(self.invert_perms_selection) self.buttonBox.clicked.connect(self.run) # # Class browser # def get_detail(self): # .ui is set for single item selection. index = self.classes.selectedIndexes()[0] item = self.class_model.data(index, Qt.UserRole) self.log.debug("Generating detail window for {0}".format(item)) class_detail(self, item) # # Name criteria # def clear_name_error(self): self.clear_criteria_error(self.name, "Match the object class name.") def set_name(self): try: self.query.name = self.name.text() except Exception as ex: self.log.error("Object class name error: {0}".format(ex)) self.set_criteria_error(self.name, ex) def set_name_regex(self, state): self.log.debug("Setting name_regex {0}".format(state)) self.query.name_regex = state self.clear_name_error() self.set_name() # # Common criteria # def set_common(self): for index in self.common.selectionModel().selectedIndexes(): self.query.common = self.common_model.data(index, Qt.UserRole) break else: self.query.common = None # # Permissions criteria # def set_perms(self): selected_perms = [] for index in self.perms.selectionModel().selectedIndexes(): selected_perms.append(self.perms_model.data(index, Qt.UserRole)) self.query.perms = selected_perms def invert_perms_selection(self): invert_list_selection(self.perms.selectionModel()) # # Save/Load tab # def save(self): """Return a dictionary of settings.""" if self.errors: raise TabFieldError("Field(s) are in error: {0}". format(" ".join(o.objectName() for o in self.errors))) settings = {} save_checkboxes(self, settings, ["criteria_expander", "notes_expander", "name_regex", "perms_equal"]) save_lineedits(self, settings, ["name"]) save_listviews(self, settings, ["common", "perms"]) save_textedits(self, settings, ["notes"]) return settings def load(self, settings): load_checkboxes(self, settings, ["criteria_expander", "notes_expander", "name_regex", "perms_equal"]) load_lineedits(self, settings, ["name"]) load_listviews(self, settings, ["common", "perms"]) load_textedits(self, settings, ["notes"]) # # Results runner # def run(self, button): # right now there is only one button. self.query.perms_equal = self.perms_equal.isChecked() # start processing self.busy.setLabelText("Processing query...") self.busy.show() self.raw_results.clear() self.thread.start() def update_complete(self, count): self.log.info("{0} object class(es) found.".format(count)) # update sizes/location of result displays if not self.busy.wasCanceled(): self.busy.setLabelText("Resizing the result table's columns; GUI may be unresponsive") self.busy.repaint() self.table_results.resizeColumnsToContents() # If the permissions column width is too long, pull back # to a reasonable size header = self.table_results.horizontalHeader() if header.sectionSize(1) > 400: header.resizeSection(1, 400) if not self.busy.wasCanceled(): self.busy.setLabelText("Resizing the result table's rows; GUI may be unresponsive") self.busy.repaint() self.table_results.resizeRowsToContents() if not self.busy.wasCanceled(): self.busy.setLabelText("Moving the raw result to top; GUI may be unresponsive") self.busy.repaint() self.raw_results.moveCursor(QTextCursor.Start) self.busy.reset()