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4.4.0
setoolsgui/apol/constraintquery.py
341 строка
13 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 2015, 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 ConstraintQuery from ..logtosignal import LogHandlerToSignal from ..models import PermListModel, SEToolsListModel, invert_list_selection from ..constraintmodel import ConstraintTableModel 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 ConstraintQueryTab(AnalysisTab): """A constraint query.""" section = AnalysisSection.Rules tab_title = "Constraints" mlsonly = False def __init__(self, parent, policy, perm_map): super(ConstraintQueryTab, self).__init__(parent) self.log = logging.getLogger(__name__) self.policy = policy self.query = ConstraintQuery(policy) self.setupUi() def __del__(self): with suppress(RuntimeError): self.thread.quit() self.thread.wait(5000) logging.getLogger("setools.constraintquery").removeHandler(self.handler) def setupUi(self): self.load_ui("apol/constraintquery.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) # populate class list self.class_model = SEToolsListModel(self) self.class_model.item_list = sorted(self.policy.classes()) self.tclass.setModel(self.class_model) # populate perm list self.perms_model = PermListModel(self, self.policy) self.perms.setModel(self.perms_model) # setup indications of errors 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_user_error() self.clear_type_error() self.clear_role_error() # set up results self.table_results_model = ConstraintTableModel(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.constraintquery").addHandler(self.handler) # Ensure settings are consistent with the initial .ui state self.set_user_regex(self.user_regex.isChecked()) self.set_role_regex(self.role_regex.isChecked()) self.set_type_regex(self.type_regex.isChecked()) self.criteria_frame.setHidden(not self.criteria_expander.isChecked()) self.notes.setHidden(not self.notes_expander.isChecked()) # MLS constraints available only if policy is MLS if not self.policy.mls: self.mlsconstrain.setEnabled(False) self.mlsvalidatetrans.setEnabled(False) self.mlsconstrain.setToolTip("MLS is disabled in this policy.") self.mlsvalidatetrans.setToolTip("MLS is disabled in this policy.") # connect signals self.buttonBox.clicked.connect(self.run) self.clear_ruletypes.clicked.connect(self.clear_all_ruletypes) self.all_ruletypes.clicked.connect(self.set_all_ruletypes) 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.tclass.selectionModel().selectionChanged.connect(self.set_tclass) self.invert_class.clicked.connect(self.invert_tclass_selection) self.perms.selectionModel().selectionChanged.connect(self.set_perms) self.invert_perms.clicked.connect(self.invert_perms_selection) # # Ruletype criteria # def _set_ruletypes(self, value): self.constrain.setChecked(value) self.validatetrans.setChecked(value) if self.policy.mls: self.mlsconstrain.setChecked(value) self.mlsvalidatetrans.setChecked(value) def set_all_ruletypes(self): self._set_ruletypes(True) def clear_all_ruletypes(self): self._set_ruletypes(False) # # Class criteria # def set_tclass(self): selected_classes = [] for index in self.tclass.selectionModel().selectedIndexes(): selected_classes.append(self.class_model.data(index, Qt.UserRole)) self.query.tclass = selected_classes self.perms_model.set_classes(selected_classes) def invert_tclass_selection(self): invert_list_selection(self.tclass.selectionModel()) # # 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()) # # User criteria # def clear_user_error(self): self.clear_criteria_error(self.user, "Match constraints that have a user in the expression.") def set_user(self): try: self.query.user = self.user.text() except Exception as ex: self.log.error("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 constraints that have a role in the expression.") def set_role(self): try: self.query.role = self.role.text() except Exception as ex: self.log.error("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 constraints that have a type in the expression.") def set_type(self): try: self.query.type_ = self.type_.text() except Exception as ex: self.log.error("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() # # 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", "constrain", "mlsconstrain", "validatetrans", "mlsvalidatetrans", "user_regex", "role_regex", "type_regex", "perms_subset"]) save_lineedits(self, settings, ["user", "role", "type_"]) save_listviews(self, settings, ["tclass", "perms"]) save_textedits(self, settings, ["notes"]) return settings def load(self, settings): load_checkboxes(self, settings, ["criteria_expander", "notes_expander", "constrain", "mlsconstrain", "validatetrans", "mlsvalidatetrans", "user_regex", "role_regex", "type_regex", "perms_subset"]) load_lineedits(self, settings, ["user", "role", "type_"]) load_listviews(self, settings, ["tclass", "perms"]) load_textedits(self, settings, ["notes"]) # # Results runner # def run(self, button): # right now there is only one button. rule_types = [] for mode in [self.constrain, self.mlsconstrain, self.validatetrans, self.mlsvalidatetrans]: if mode.isChecked(): rule_types.append(mode.objectName()) self.query.ruletype = rule_types self.query.perms_subset = self.perms_subset.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} constraint(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 permissions or expression column widths are too long, pull back # to a reasonable size header = self.table_results.horizontalHeader() if header.sectionSize(2) > 400: header.resizeSection(2, 400) if header.sectionSize(3) > 400: header.resizeSection(3, 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()