core-admin/qubes/tests/integ/basic.py

# pylint: disable=invalid-name

#
# The Qubes OS Project, https://www.qubes-os.org/
#
# Copyright (C) 2014-2015
#                   Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
# Copyright (C) 2015  Wojtek Porczyk <woju@invisiblethingslab.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#

from distutils import spawn

import asyncio
import os
import subprocess
import tempfile
import time
import unittest

import qubes
import qubes.firewall
import qubes.tests
import qubes.vm.appvm
import qubes.vm.qubesvm
import qubes.vm.standalonevm
import qubes.vm.templatevm

import libvirt  # pylint: disable=import-error


class TC_00_Basic(qubes.tests.SystemTestCase):
    def setUp(self):
        super(TC_00_Basic, self).setUp()
        self.init_default_template()

    def test_000_qubes_create(self):
        self.assertIsInstance(self.app, qubes.Qubes)

    def test_100_qvm_create(self):
        vmname = self.make_vm_name('appvm')

        vm = self.app.add_new_vm(qubes.vm.appvm.AppVM,
            name=vmname, template=self.app.default_template,
            label='red')

        self.assertIsNotNone(vm)
        self.assertEqual(vm.name, vmname)
        self.assertEqual(vm.template, self.app.default_template)
        self.loop.run_until_complete(vm.create_on_disk())

        with self.assertNotRaises(qubes.exc.QubesException):
            self.loop.run_until_complete(vm.storage.verify())

    def test_040_qdb_watch(self):
        flag = set()

        def handler(vm, event, path):
            if path == '/test-watch-path':
                flag.add(True)

        vm = self.app.domains[0]
        vm.watch_qdb_path('/test-watch-path')
        vm.add_handler('domain-qdb-change:/test-watch-path', handler)
        self.assertFalse(flag)
        vm.untrusted_qdb.write('/test-watch-path', 'test-value')
        self.loop.run_until_complete(asyncio.sleep(0.1))
        self.assertTrue(flag)

class TC_01_Properties(qubes.tests.SystemTestCase):
    # pylint: disable=attribute-defined-outside-init
    def setUp(self):
        super(TC_01_Properties, self).setUp()
        self.init_default_template()
        self.vmname = self.make_vm_name('appvm')
        self.vm = self.app.add_new_vm(qubes.vm.appvm.AppVM, name=self.vmname,
                                      template=self.app.default_template,
                                      label='red')
        self.loop.run_until_complete(self.vm.create_on_disk())
        self.addCleanup(self.cleanup_props)

    def cleanup_props(self):
        del self.vm

    @unittest.expectedFailure
    def test_030_clone(self):
        try:
            testvm1 = self.app.add_new_vm(
                qubes.vm.appvm.AppVM,
                name=self.make_vm_name("vm"),
                template=self.app.default_template,
                label='red')
            self.loop.run_until_complete(testvm1.create_on_disk())
            testvm2 = self.app.add_new_vm(testvm1.__class__,
                                        name=self.make_vm_name("clone"),
                                        template=testvm1.template,
                                        label='red')
            testvm2.clone_properties(testvm1)
            self.loop.run_until_complete(testvm2.clone_disk_files(testvm1))
            self.assertTrue(self.loop.run_until_complete(testvm1.storage.verify()))
            self.assertIn('source', testvm1.volumes['root'].config)
            self.assertNotEquals(testvm2, None)
            self.assertNotEquals(testvm2.volumes, {})
            self.assertIn('source', testvm2.volumes['root'].config)

            # qubes.xml reload
            self.app.save()
            testvm1 = self.app.domains[testvm1.qid]
            testvm2 = self.app.domains[testvm2.qid]

            self.assertEqual(testvm1.label, testvm2.label)
            self.assertEqual(testvm1.netvm, testvm2.netvm)
            self.assertEqual(testvm1.property_is_default('netvm'),
                            testvm2.property_is_default('netvm'))
            self.assertEqual(testvm1.kernel, testvm2.kernel)
            self.assertEqual(testvm1.kernelopts, testvm2.kernelopts)
            self.assertEqual(testvm1.property_is_default('kernel'),
                            testvm2.property_is_default('kernel'))
            self.assertEqual(testvm1.property_is_default('kernelopts'),
                            testvm2.property_is_default('kernelopts'))
            self.assertEqual(testvm1.memory, testvm2.memory)
            self.assertEqual(testvm1.maxmem, testvm2.maxmem)
            self.assertEqual(testvm1.devices, testvm2.devices)
            self.assertEqual(testvm1.include_in_backups,
                            testvm2.include_in_backups)
            self.assertEqual(testvm1.default_user, testvm2.default_user)
            self.assertEqual(testvm1.features, testvm2.features)
            self.assertEqual(testvm1.firewall.rules,
                            testvm2.firewall.rules)

            # now some non-default values
            testvm1.netvm = None
            testvm1.label = 'orange'
            testvm1.memory = 512
            firewall = testvm1.firewall
            firewall.rules = [
                qubes.firewall.Rule(None, action='accept', dsthost='1.2.3.0/24',
                    proto='tcp', dstports=22)]
            firewall.save()

            testvm3 = self.app.add_new_vm(testvm1.__class__,
                                        name=self.make_vm_name("clone2"),
                                        template=testvm1.template,
                                        label='red',)
            testvm3.clone_properties(testvm1)
            self.loop.run_until_complete(testvm3.clone_disk_files(testvm1))

            # qubes.xml reload
            self.app.save()
            testvm1 = self.app.domains[testvm1.qid]
            testvm3 = self.app.domains[testvm3.qid]

            self.assertEqual(testvm1.label, testvm3.label)
            self.assertEqual(testvm1.netvm, testvm3.netvm)
            self.assertEqual(testvm1.property_is_default('netvm'),
                            testvm3.property_is_default('netvm'))
            self.assertEqual(testvm1.kernel, testvm3.kernel)
            self.assertEqual(testvm1.kernelopts, testvm3.kernelopts)
            self.assertEqual(testvm1.property_is_default('kernel'),
                            testvm3.property_is_default('kernel'))
            self.assertEqual(testvm1.property_is_default('kernelopts'),
                            testvm3.property_is_default('kernelopts'))
            self.assertEqual(testvm1.memory, testvm3.memory)
            self.assertEqual(testvm1.maxmem, testvm3.maxmem)
            self.assertEqual(testvm1.devices, testvm3.devices)
            self.assertEqual(testvm1.include_in_backups,
                            testvm3.include_in_backups)
            self.assertEqual(testvm1.default_user, testvm3.default_user)
            self.assertEqual(testvm1.features, testvm3.features)
            self.assertEqual(testvm1.firewall.rules,
                            testvm2.firewall.rules)
        finally:
            try:
                del testvm1
            except NameError:
                pass
            try:
                del testvm2
            except NameError:
                pass
            try:
                del testvm3
            except NameError:
                pass

    def test_020_name_conflict_app(self):
        # TODO decide what exception should be here
        with self.assertRaises((qubes.exc.QubesException, ValueError)):
            self.vm2 = self.app.add_new_vm(qubes.vm.appvm.AppVM,
                name=self.vmname, template=self.app.default_template,
                label='red')
            self.loop.run_until_complete(self.vm2.create_on_disk())

    def test_021_name_conflict_template(self):
        # TODO decide what exception should be here
        with self.assertRaises((qubes.exc.QubesException, ValueError)):
            self.vm2 = self.app.add_new_vm(qubes.vm.templatevm.TemplateVM,
                name=self.vmname, label='red')
            self.loop.run_until_complete(self.vm2.create_on_disk())


class TC_02_QvmPrefs(qubes.tests.SystemTestCase):
    # pylint: disable=attribute-defined-outside-init

    def setUp(self):
        super(TC_02_QvmPrefs, self).setUp()
        self.init_default_template()
        self.sharedopts = ['--qubesxml', qubes.tests.XMLPATH]

    def setup_appvm(self):
        self.testvm = self.app.add_new_vm(
            qubes.vm.appvm.AppVM,
            name=self.make_vm_name("vm"),
            label='red')
        self.loop.run_until_complete(self.testvm.create_on_disk())
        self.app.save()

    def setup_hvm(self):
        self.testvm = self.app.add_new_vm(
            qubes.vm.appvm.AppVM,
            name=self.make_vm_name("hvm"),
            label='red')
        self.testvm.virt_mode = 'hvm'
        self.loop.run_until_complete(self.testvm.create_on_disk())
        self.app.save()

    def pref_set(self, name, value, valid=True):
        self.loop.run_until_complete(self._pref_set(name, value, valid))

    @asyncio.coroutine
    def _pref_set(self, name, value, valid=True):
        cmd = ['qvm-prefs']
        if value != '-D':
            cmd.append('--')
        cmd.extend((self.testvm.name, name, value))
        p = yield from asyncio.create_subprocess_exec(*cmd,
            stdout=subprocess.PIPE,
            stderr=subprocess.PIPE)
        (stdout, stderr) = yield from p.communicate()
        if valid:
            self.assertEqual(p.returncode, 0,
                              "qvm-prefs .. '{}' '{}' failed: {}{}".format(
                                  name, value, stdout, stderr
                              ))
        else:
            self.assertNotEquals(p.returncode, 0,
                                 "qvm-prefs should reject value '{}' for "
                                 "property '{}'".format(value, name))

    def pref_get(self, name):
        self.loop.run_until_complete(self._pref_get(name))

    @asyncio.coroutine
    def _pref_get(self, name):
        p = yield from asyncio.create_subprocess_exec(
            'qvm-prefs', *self.sharedopts, '--', self.testvm.name, name,
            stdout=subprocess.PIPE)
        (stdout, _) = yield from p.communicate()
        self.assertEqual(p.returncode, 0)
        return stdout.strip()

    bool_test_values = [
        ('true', 'True', True),
        ('False', 'False', True),
        ('0', 'False', True),
        ('1', 'True', True),
        ('invalid', '', False)
    ]

    def execute_tests(self, name, values):
        """
        Helper function, which executes tests for given property.
        :param values: list of tuples (value, expected, valid),
        where 'value' is what should be set and 'expected' is what should
        qvm-prefs returns as a property value and 'valid' marks valid and
        invalid values - if it's False, qvm-prefs should reject the value
        :return: None
        """
        for (value, expected, valid) in values:
            self.pref_set(name, value, valid)
            if valid:
                self.assertEqual(self.pref_get(name), expected)

    @unittest.skip('test not converted to core3 API')
    def test_006_template(self):
        templates = [tpl for tpl in self.app.domains.values() if
            isinstance(tpl, qubes.vm.templatevm.TemplateVM)]
        if not templates:
            self.skipTest("No templates installed")
        some_template = templates[0].name
        self.setup_appvm()
        self.execute_tests('template', [
            (some_template, some_template, True),
            ('invalid', '', False),
        ])

    @unittest.skip('test not converted to core3 API')
    def test_014_pcidevs(self):
        self.setup_appvm()
        self.execute_tests('pcidevs', [
            ('[]', '[]', True),
            ('[ "00:00.0" ]', "['00:00.0']", True),
            ('invalid', '', False),
            ('[invalid]', '', False),
            # TODO:
            # ('["12:12.0"]', '', False)
        ])

    @unittest.skip('test not converted to core3 API')
    def test_024_pv_reject_hvm_props(self):
        self.setup_appvm()
        self.execute_tests('guiagent_installed', [('False', '', False)])
        self.execute_tests('qrexec_installed', [('False', '', False)])
        self.execute_tests('drive', [('/tmp/drive.img', '', False)])
        self.execute_tests('timezone', [('localtime', '', False)])

    @unittest.skip('test not converted to core3 API')
    def test_025_hvm_reject_pv_props(self):
        self.setup_hvm()
        self.execute_tests('kernel', [('default', '', False)])
        self.execute_tests('kernelopts', [('default', '', False)])

class TC_03_QvmRevertTemplateChanges(qubes.tests.SystemTestCase):
    # pylint: disable=attribute-defined-outside-init

    def setUp(self):
        super(TC_03_QvmRevertTemplateChanges, self).setUp()
        self.init_default_template()

    def cleanup_template(self):
        del self.test_template

    def setup_pv_template(self):
        self.test_template = self.app.add_new_vm(
            qubes.vm.templatevm.TemplateVM,
            name=self.make_vm_name("pv-clone"),
            label='red'
        )
        self.addCleanup(self.cleanup_template)
        self.test_template.clone_properties(self.app.default_template)
        self.loop.run_until_complete(
            self.test_template.clone_disk_files(self.app.default_template))
        self.app.save()

    def setup_hvm_template(self):
        self.test_template = self.app.add_new_vm(
            qubes.vm.templatevm.TemplateVM,
            name=self.make_vm_name("hvm"),
            label='red',
            virt_mode='hvm',
        )
        self.addCleanup(self.cleanup_template)
        self.loop.run_until_complete(self.test_template.create_on_disk())
        self.app.save()

    def get_rootimg_checksum(self):
        p = subprocess.Popen(
            ['sha1sum', self.test_template.volumes['root'].path],
            stdout=subprocess.PIPE)
        return p.communicate()[0]

    def _do_test(self):
        checksum_before = self.get_rootimg_checksum()
        self.loop.run_until_complete(self.test_template.start())
        self.shutdown_and_wait(self.test_template)
        checksum_changed = self.get_rootimg_checksum()
        if checksum_before == checksum_changed:
            self.log.warning("template not modified, test result will be "
                             "unreliable")
        self.assertNotEqual(self.test_template.volumes['root'].revisions, {})
        pool_vid = repr(self.test_template.volumes['root']).strip("'")
        revert_cmd = ['qvm-block', 'revert', pool_vid]
        p = self.loop.run_until_complete(asyncio.create_subprocess_exec(
            *revert_cmd))
        self.loop.run_until_complete(p.wait())
        self.assertEqual(p.returncode, 0)


        checksum_after = self.get_rootimg_checksum()
        self.assertEqual(checksum_before, checksum_after)

    @unittest.expectedFailure
    def test_000_revert_pv(self):
        """
        Test qvm-revert-template-changes for PV template
        """
        self.setup_pv_template()
        self._do_test()

    @unittest.skip('HVM not yet implemented')
    def test_000_revert_hvm(self):
        """
        Test qvm-revert-template-changes for HVM template
        """
        # TODO: have some system there, so the root.img will get modified
        self.setup_hvm_template()
        self._do_test()

class TC_30_Gui_daemon(qubes.tests.SystemTestCase):
    def setUp(self):
        super(TC_30_Gui_daemon, self).setUp()
        self.init_default_template()

    @unittest.skipUnless(
        spawn.find_executable('xdotool'),
                         "xdotool not installed")
    def test_000_clipboard(self):
        testvm1 = self.app.add_new_vm(qubes.vm.appvm.AppVM,
                                     name=self.make_vm_name('vm1'), label='red')
        self.loop.run_until_complete(testvm1.create_on_disk())
        testvm2 = self.app.add_new_vm(qubes.vm.appvm.AppVM,
                                     name=self.make_vm_name('vm2'), label='red')
        self.loop.run_until_complete(testvm2.create_on_disk())
        self.app.save()

        self.loop.run_until_complete(asyncio.wait([
            testvm1.start(),
            testvm2.start()]))
        self.loop.run_until_complete(asyncio.wait([
            self.wait_for_session(testvm1),
            self.wait_for_session(testvm2)]))
        window_title = 'user@{}'.format(testvm1.name)
        self.loop.run_until_complete(testvm1.run(
            'zenity --text-info --editable --title={}'.format(window_title)))

        self.wait_for_window(window_title)
        time.sleep(0.5)
        test_string = "test{}".format(testvm1.xid)

        # Type and copy some text
        subprocess.check_call(['xdotool', 'search', '--name', window_title,
                               'windowactivate', '--sync',
                               'type', test_string])
        # second xdotool call because type --terminator do not work (SEGV)
        # additionally do not use search here, so window stack will be empty
        # and xdotool will use XTEST instead of generating events manually -
        # this will be much better - at least because events will have
        # correct timestamp (so gui-daemon would not drop the copy request)
        subprocess.check_call(['xdotool',
                               'key', 'ctrl+a', 'ctrl+c', 'ctrl+shift+c',
                               'Escape'])

        clipboard_content = \
            open('/var/run/qubes/qubes-clipboard.bin', 'r').read().strip()
        self.assertEqual(clipboard_content, test_string,
                          "Clipboard copy operation failed - content")
        clipboard_source = \
            open('/var/run/qubes/qubes-clipboard.bin.source',
                 'r').read().strip()
        self.assertEqual(clipboard_source, testvm1.name,
                          "Clipboard copy operation failed - owner")

        # Then paste it to the other window
        window_title = 'user@{}'.format(testvm2.name)
        p = self.loop.run_until_complete(testvm2.run(
            'zenity --entry --title={} > /tmp/test.txt'.format(window_title)))
        self.wait_for_window(window_title)

        subprocess.check_call(['xdotool', 'key', '--delay', '100',
                               'ctrl+shift+v', 'ctrl+v', 'Return'])
        self.loop.run_until_complete(p.wait())

        # And compare the result
        (test_output, _) = self.loop.run_until_complete(
            testvm2.run_for_stdio('cat /tmp/test.txt'))
        self.assertEqual(test_string, test_output.strip().decode('ascii'))

        clipboard_content = \
            open('/var/run/qubes/qubes-clipboard.bin', 'r').read().strip()
        self.assertEqual(clipboard_content, "",
                          "Clipboard not wiped after paste - content")
        clipboard_source = \
            open('/var/run/qubes/qubes-clipboard.bin.source', 'r').\
            read().strip()
        self.assertEqual(clipboard_source, "",
                          "Clipboard not wiped after paste - owner")

class TC_05_StandaloneVM(qubes.tests.SystemTestCase):
    def setUp(self):
        super(TC_05_StandaloneVM, self).setUp()
        self.init_default_template()

    def test_000_create_start(self):
        testvm1 = self.app.add_new_vm(qubes.vm.standalonevm.StandaloneVM,
                                     name=self.make_vm_name('vm1'), label='red')
        testvm1.features['qrexec'] = True
        self.loop.run_until_complete(
            testvm1.clone_disk_files(self.app.default_template))
        self.app.save()
        self.loop.run_until_complete(testvm1.start())
        self.assertEqual(testvm1.get_power_state(), "Running")

    def test_100_resize_root_img(self):
        testvm1 = self.app.add_new_vm(qubes.vm.standalonevm.StandaloneVM,
                                     name=self.make_vm_name('vm1'), label='red')
        testvm1.features['qrexec'] = True
        self.loop.run_until_complete(
            testvm1.clone_disk_files(self.app.default_template))
        self.app.save()
        self.loop.run_until_complete(
            testvm1.storage.resize(testvm1.volumes['root'], 20 * 1024 ** 3))
        self.assertEqual(testvm1.volumes['root'].size, 20 * 1024 ** 3)
        self.loop.run_until_complete(testvm1.start())
        # new_size in 1k-blocks
        (new_size, _) = self.loop.run_until_complete(
            testvm1.run_for_stdio('df --output=size /|tail -n 1'))
        # some safety margin for FS metadata
        self.assertGreater(int(new_size.strip()), 19 * 1024 ** 2)



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