# 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 # . # import logging 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 TypeQuery from ..logtosignal import LogHandlerToSignal from ..models import SEToolsListModel, invert_list_selection from ..typemodel import TypeTableModel, type_detail from .analysistab import 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 TypeQueryTab(AnalysisTab): """Type browser and query tab.""" def __init__(self, parent, policy, perm_map): super(TypeQueryTab, self).__init__(parent) self.log = logging.getLogger(__name__) self.policy = policy self.query = TypeQuery(policy) self.setupUi() def __del__(self): self.thread.quit() self.thread.wait(5000) logging.getLogger("setools.typequery").removeHandler(self.handler) def setupUi(self): self.load_ui("apol/typequery.ui") # populate type list self.type_model = SEToolsListModel(self) self.type_model.item_list = sorted(self.policy.types()) self.types.setModel(self.type_model) # populate attribute list self.attr_model = SEToolsListModel(self) self.attr_model.item_list = sorted(self.policy.typeattributes()) self.attrs.setModel(self.attr_model) # set up results self.table_results_model = TypeTableModel(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.typequery").addHandler(self.handler) # Ensure settings are consistent with the initial .ui state self.notes.setHidden(not self.notes_expander.isChecked()) # connect signals self.types.doubleClicked.connect(self.get_detail) self.types.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.attrs.selectionModel().selectionChanged.connect(self.set_attrs) self.invert_attrs.clicked.connect(self.invert_attr_selection) self.buttonBox.clicked.connect(self.run) # # Type browser # def get_detail(self): # .ui is set for single item selection. index = self.types.selectedIndexes()[0] item = self.type_model.data(index, Qt.UserRole) self.log.debug("Generating detail window for {0}".format(item)) type_detail(self, item) # # Name criteria # def clear_name_error(self): self.clear_criteria_error(self.name, "Match the type name.") def set_name(self): try: self.query.name = self.name.text() except Exception as ex: self.log.error("Type 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() # # Attribute criteria # def set_attrs(self): selected_attrs = [] for index in self.attrs.selectionModel().selectedIndexes(): selected_attrs.append(self.attr_model.data(index, Qt.UserRole)) self.query.attrs = selected_attrs def invert_attr_selection(self): invert_list_selection(self.attrs.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", "attrs_any", "attrs_equal", "permissive"]) save_lineedits(self, settings, ["name"]) save_listviews(self, settings, ["attrs"]) save_textedits(self, settings, ["notes"]) return settings def load(self, settings): load_checkboxes(self, settings, ["criteria_expander", "notes_expander", "name_regex", "attrs_any", "attrs_equal", "permissive"]) load_lineedits(self, settings, ["name"]) load_listviews(self, settings, ["attrs"]) load_textedits(self, settings, ["notes"]) # # Results runner # def run(self, button): # right now there is only one button. self.query.name_regex = self.name_regex.isChecked() self.query.attrs_equal = self.attrs_equal.isChecked() self.query.permissive = self.permissive.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} type(s) 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 attrs or alias column widths are too long, pull back # to a reasonable size header = self.table_results.horizontalHeader() if header.sectionSize(1) > 400: header.resizeSection(1, 400) if header.sectionSize(2) > 400: header.resizeSection(2, 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()