mirror of
https://github.com/SELinuxProject/setools
synced 2025-04-01 22:58:12 +00:00
215 lines
7.6 KiB
Python
215 lines
7.6 KiB
Python
# Copyright 2016, Tresys Technology, LLC
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#
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# SPDX-License-Identifier: LGPL-2.1-only
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#
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#
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import logging
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from contextlib import suppress
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from PyQt5.QtCore import Qt, QSortFilterProxyModel, QStringListModel, QThread
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from PyQt5.QtGui import QPalette, QTextCursor
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from PyQt5.QtWidgets import QCompleter, QHeaderView, QMessageBox, QProgressDialog
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from setools import RoleQuery
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from ..logtosignal import LogHandlerToSignal
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from ..models import SEToolsListModel, invert_list_selection
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from ..rolemodel import RoleTableModel, role_detail
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from .analysistab import AnalysisSection, AnalysisTab
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from .exception import TabFieldError
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from .queryupdater import QueryResultsUpdater
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from .workspace import load_checkboxes, load_lineedits, load_listviews, load_textedits, \
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save_checkboxes, save_lineedits, save_listviews, save_textedits
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class RoleQueryTab(AnalysisTab):
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"""Role browser and query tab."""
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section = AnalysisSection.Components
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tab_title = "Roles"
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mlsonly = False
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def __init__(self, parent, policy, perm_map):
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super(RoleQueryTab, self).__init__(parent)
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self.log = logging.getLogger(__name__)
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self.policy = policy
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self.query = RoleQuery(policy)
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self.setupUi()
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def __del__(self):
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with suppress(RuntimeError):
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self.thread.quit()
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self.thread.wait(5000)
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logging.getLogger("setools.rolequery").removeHandler(self.handler)
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def setupUi(self):
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self.load_ui("apol/rolequery.ui")
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# populate role list
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self.role_model = SEToolsListModel(self)
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self.role_model.item_list = sorted(r for r in self.policy.roles())
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self.roles.setModel(self.role_model)
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# populate type list
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self.type_model = SEToolsListModel(self)
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self.type_model.item_list = sorted(self.policy.types())
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self.types.setModel(self.type_model)
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# set up results
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self.table_results_model = RoleTableModel(self)
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self.sort_proxy = QSortFilterProxyModel(self)
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self.sort_proxy.setSourceModel(self.table_results_model)
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self.table_results.setModel(self.sort_proxy)
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self.table_results.sortByColumn(0, Qt.AscendingOrder)
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# setup indications of errors on level/range
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self.errors = set()
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self.orig_palette = self.name.palette()
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self.error_palette = self.name.palette()
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self.error_palette.setColor(QPalette.Base, Qt.red)
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self.clear_name_error()
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# set up processing thread
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self.thread = QThread()
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self.worker = QueryResultsUpdater(self.query, self.table_results_model)
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self.worker.moveToThread(self.thread)
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self.worker.raw_line.connect(self.raw_results.appendPlainText)
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self.worker.finished.connect(self.update_complete)
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self.worker.finished.connect(self.thread.quit)
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self.thread.started.connect(self.worker.update)
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# create a "busy, please wait" dialog
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self.busy = QProgressDialog(self)
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self.busy.setModal(True)
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self.busy.setRange(0, 0)
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self.busy.setMinimumDuration(0)
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self.busy.canceled.connect(self.thread.requestInterruption)
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self.busy.reset()
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# update busy dialog from query INFO logs
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self.handler = LogHandlerToSignal()
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self.handler.message.connect(self.busy.setLabelText)
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logging.getLogger("setools.rolequery").addHandler(self.handler)
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# Ensure settings are consistent with the initial .ui state
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self.notes.setHidden(not self.notes_expander.isChecked())
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# connect signals
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self.roles.doubleClicked.connect(self.get_detail)
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self.roles.get_detail.triggered.connect(self.get_detail)
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self.name.textEdited.connect(self.clear_name_error)
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self.name.editingFinished.connect(self.set_name)
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self.name_regex.toggled.connect(self.set_name_regex)
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self.types.selectionModel().selectionChanged.connect(self.set_types)
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self.invert_types.clicked.connect(self.invert_type_selection)
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self.buttonBox.clicked.connect(self.run)
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#
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# User browser
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#
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def get_detail(self):
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# .ui is set for single item selection.
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index = self.roles.selectedIndexes()[0]
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item = self.role_model.data(index, Qt.UserRole)
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self.log.debug("Generating detail window for {0}".format(item))
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role_detail(self, item)
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#
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# Name criteria
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#
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def clear_name_error(self):
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self.clear_criteria_error(self.name, "Match the role name.")
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def set_name(self):
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try:
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self.query.name = self.name.text()
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except Exception as ex:
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self.log.error("Role name error: {0}".format(ex))
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self.set_criteria_error(self.name, ex)
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def set_name_regex(self, state):
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self.log.debug("Setting name_regex {0}".format(state))
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self.query.name_regex = state
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self.clear_name_error()
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self.set_name()
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#
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# Type criteria
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#
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def set_types(self):
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selected_types = []
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for index in self.types.selectionModel().selectedIndexes():
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selected_types.append(self.type_model.data(index, Qt.UserRole))
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self.query.types = selected_types
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def invert_type_selection(self):
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invert_list_selection(self.types.selectionModel())
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#
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# Save/Load tab
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#
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def save(self):
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"""Return a dictionary of settings."""
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settings = {}
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if self.errors:
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raise TabFieldError("Field(s) are in error: {0}".
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format(" ".join(o.objectName() for o in self.errors)))
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save_checkboxes(self, settings, ["criteria_expander", "notes_expander", "name_regex",
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"types_any", "types_equal"])
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save_lineedits(self, settings, ["name"])
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save_listviews(self, settings, ["types"])
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save_textedits(self, settings, ["notes"])
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return settings
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def load(self, settings):
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load_checkboxes(self, settings, ["criteria_expander", "notes_expander", "name_regex",
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"types_any", "types_equal"])
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load_lineedits(self, settings, ["name"])
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load_listviews(self, settings, ["types"])
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load_textedits(self, settings, ["notes"])
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#
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# Results runner
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#
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def run(self, button):
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# right now there is only one button.
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self.query.types_equal = self.types_equal.isChecked()
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# start processing
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self.busy.setLabelText("Processing query...")
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self.busy.show()
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self.raw_results.clear()
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self.thread.start()
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def update_complete(self, count):
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self.log.info("{0} role(s) found.".format(count))
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# update sizes/location of result displays
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if not self.busy.wasCanceled():
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self.busy.setLabelText("Resizing the result table's columns; GUI may be unresponsive")
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self.busy.repaint()
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self.table_results.resizeColumnsToContents()
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# If the types column width is too long, pull back
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# to a reasonable size
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header = self.table_results.horizontalHeader()
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if header.sectionSize(1) > 400:
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header.resizeSection(1, 400)
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if not self.busy.wasCanceled():
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self.busy.setLabelText("Resizing the result table's rows; GUI may be unresponsive")
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self.busy.repaint()
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self.table_results.resizeRowsToContents()
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if not self.busy.wasCanceled():
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self.busy.setLabelText("Moving the raw result to top; GUI may be unresponsive")
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self.busy.repaint()
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self.raw_results.moveCursor(QTextCursor.Start)
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self.busy.reset()
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