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4.4.0
setoolsgui/apol/netifconquery.py
305 строк
12 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 NetifconQuery from ..logtosignal import LogHandlerToSignal from ..netifconmodel import NetifconTableModel from .analysistab import AnalysisSection, AnalysisTab from .exception import TabFieldError from .queryupdater import QueryResultsUpdater from .workspace import load_checkboxes, load_lineedits, load_textedits, \ save_checkboxes, save_lineedits, save_textedits class NetifconQueryTab(AnalysisTab): """A netifcon query.""" section = AnalysisSection.Labeling tab_title = "Network Interface Contexts" mlsonly = False def __init__(self, parent, policy, perm_map): super(NetifconQueryTab, self).__init__(parent) self.log = logging.getLogger(__name__) self.policy = policy self.query = NetifconQuery(policy) self.setupUi() def __del__(self): with suppress(RuntimeError): self.thread.quit() self.thread.wait(5000) logging.getLogger("setools.netifconquery").removeHandler(self.handler) def setupUi(self): self.load_ui("apol/netifconquery.ui") # set up user autocompletion user_completion_list = [str(u) for u in self.policy.users()] user_completer_model = QStringListModel(self) user_completer_model.setStringList(sorted(user_completion_list)) self.user_completion = QCompleter() self.user_completion.setModel(user_completer_model) self.user.setCompleter(self.user_completion) # set up role autocompletion role_completion_list = [str(r) for r in self.policy.roles()] role_completer_model = QStringListModel(self) role_completer_model.setStringList(sorted(role_completion_list)) self.role_completion = QCompleter() self.role_completion.setModel(role_completer_model) self.role.setCompleter(self.role_completion) # set up type autocompletion type_completion_list = [str(t) for t in self.policy.types()] type_completer_model = QStringListModel(self) type_completer_model.setStringList(sorted(type_completion_list)) self.type_completion = QCompleter() self.type_completion.setModel(type_completer_model) self.type_.setCompleter(self.type_completion) # setup indications of errors on source/target/default self.errors = set() self.orig_palette = self.type_.palette() self.error_palette = self.type_.palette() self.error_palette.setColor(QPalette.Base, Qt.red) self.clear_name_error() self.clear_user_error() self.clear_type_error() self.clear_role_error() self.clear_range_error() # set up results self.table_results_model = NetifconTableModel(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) # 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.netifconquery").addHandler(self.handler) # Ensure settings are consistent with the initial .ui state self.set_name_regex(self.name_regex.isChecked()) self.criteria_frame.setHidden(not self.criteria_expander.isChecked()) self.notes.setHidden(not self.notes_expander.isChecked()) # Range criteria is available only if policy is MLS if not self.policy.mls: self.range_criteria.setEnabled(False) self.range_criteria.setToolTip("MLS is disabled in this policy.") self.range_.setToolTip("MLS is disabled in this policy.") self.range_exact.setToolTip("MLS is disabled in this policy.") self.range_overlap.setToolTip("MLS is disabled in this policy.") self.range_subset.setToolTip("MLS is disabled in this policy.") self.range_superset.setToolTip("MLS is disabled in this policy.") # connect signals self.buttonBox.clicked.connect(self.run) 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.user.textEdited.connect(self.clear_user_error) self.user.editingFinished.connect(self.set_user) self.user_regex.toggled.connect(self.set_user_regex) self.role.textEdited.connect(self.clear_role_error) self.role.editingFinished.connect(self.set_role) self.role_regex.toggled.connect(self.set_role_regex) self.type_.textEdited.connect(self.clear_type_error) self.type_.editingFinished.connect(self.set_type) self.type_regex.toggled.connect(self.set_type_regex) self.range_.textEdited.connect(self.clear_range_error) self.range_.editingFinished.connect(self.set_range) # # Name criteria # def clear_name_error(self): self.clear_criteria_error(self.name, "Match the device name.") def set_name(self): try: self.query.name = self.name.text() except Exception as ex: self.log.error("Device 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() # # User criteria # def clear_user_error(self): self.clear_criteria_error(self.user, "Match the user of the context.") def set_user(self): try: self.query.user = self.user.text() except Exception as ex: self.log.error("Context user error: {0}".format(ex)) self.set_criteria_error(self.user, ex) def set_user_regex(self, state): self.log.debug("Setting user_regex {0}".format(state)) self.query.user_regex = state self.clear_user_error() self.set_user() # # Role criteria # def clear_role_error(self): self.clear_criteria_error(self.role, "Match the role of the context.") def set_role(self): try: self.query.role = self.role.text() except Exception as ex: self.log.error("Context role error: {0}".format(ex)) self.set_criteria_error(self.role, ex) def set_role_regex(self, state): self.log.debug("Setting role_regex {0}".format(state)) self.query.role_regex = state self.clear_role_error() self.set_role() # # Type criteria # def clear_type_error(self): self.clear_criteria_error(self.type_, "Match the type of the context.") def set_type(self): try: self.query.type_ = self.type_.text() except Exception as ex: self.log.error("Context type error: {0}".format(ex)) self.set_criteria_error(self.type_, ex) def set_type_regex(self, state): self.log.debug("Setting type_regex {0}".format(state)) self.query.type_regex = state self.clear_type_error() self.set_type() # # Range criteria # def clear_range_error(self): self.clear_criteria_error(self.range_, "Match the range of the context.") def set_range(self): try: self.query.range_ = self.range_.text() except Exception as ex: self.log.info("Context range error: " + str(ex)) self.set_criteria_error(self.range_, ex) # # 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", "user_regex", "role_regex", "type_regex", "range_exact", "range_overlap", "range_subset", "range_superset"]) save_lineedits(self, settings, ["name", "user", "role", "type_", "range_"]) save_textedits(self, settings, ["notes"]) return settings def load(self, settings): load_checkboxes(self, settings, ["criteria_expander", "notes_expander", "name_regex", "user_regex", "role_regex", "type_regex", "range_exact", "range_overlap", "range_subset", "range_superset"]) load_lineedits(self, settings, ["name", "user", "role", "type_", "range_"]) load_textedits(self, settings, ["notes"]) # # Results runner # def run(self, button): # right now there is only one button. self.query.range_overlap = self.range_overlap.isChecked() self.query.range_subset = self.range_subset.isChecked() self.query.range_superset = self.range_superset.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} netifcon statement(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 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()