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setoolsgui/apol/objclassquery.py
209 строк
8 KB
Chris PeBenito
apol: implement object class query
04 апр 2016, 20:59
04 апр 2016, 20:59
884480f
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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 PyQt5.QtCore import Qt, QSortFilterProxyModel, QStringListModel, QThread from PyQt5.QtGui import QPalette, QTextCursor from PyQt5.QtWidgets import QCompleter, QHeaderView, QMessageBox, QProgressDialog, QScrollArea from setools import ObjClassQuery from ..logtosignal import LogHandlerToSignal from ..models import PermListModel, SEToolsListModel, invert_list_selection from ..objclassmodel import ObjClassTableModel, class_detail from ..widget import SEToolsWidget from .queryupdater import QueryResultsUpdater class ObjClassQueryTab(SEToolsWidget, QScrollArea): """ObjClass browser and query tab.""" 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): self.thread.quit() self.thread.wait(5000) logging.getLogger("setools.objclassquery").removeHandler(self.handler) def setupUi(self): self.load_ui("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.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.name.setToolTip("Match the object class name.") self.name.setPalette(self.orig_palette) 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.name.setToolTip("Error: " + str(ex)) self.name.setPalette(self.error_palette) 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()) # # 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()