fdc632c959
Reinstalling template is a recommended way to get it back to a clean state after potential compromise. In that case it is essential to discard any persistent storage of old template, as it could be used by the attacker to re-compromise it after reinstall. Do this similar as root volume is overridden - via volume import function. Fixes QubesOS/qubes-issues#5192
469 lines
20 KiB
Python
469 lines
20 KiB
Python
# -*- encoding: utf8 -*-
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#
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# The Qubes OS Project, http://www.qubes-os.org
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#
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# Copyright (C) 2017 Marek Marczykowski-Górecki
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# <marmarek@invisiblethingslab.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with this program; if not, see <http://www.gnu.org/licenses/>.
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import asyncio
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import os
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import subprocess
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import tempfile
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from unittest import mock
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import qubesadmin.tests
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import qubesadmin.tools.qvm_template_postprocess
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class QubesLocalMock(qubesadmin.tests.QubesTest):
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def __init__(self):
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super(QubesLocalMock, self).__init__()
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self.__class__ = qubesadmin.app.QubesLocal
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qubesd_call = qubesadmin.tests.QubesTest.qubesd_call
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run_service = qubesadmin.tests.QubesTest.run_service
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class TC_00_qvm_template_postprocess(qubesadmin.tests.QubesTestCase):
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def setUp(self):
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super(TC_00_qvm_template_postprocess, self).setUp()
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self.source_dir = tempfile.TemporaryDirectory()
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def tearDown(self):
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try:
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self.source_dir.cleanup()
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except FileNotFoundError:
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pass
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super(TC_00_qvm_template_postprocess, self).tearDown()
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def test_000_import_root_img_raw(self):
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root_img = os.path.join(self.source_dir.name, 'root.img')
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volume_data = b'volume data'
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with open(root_img, 'wb') as f:
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f.write(volume_data)
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self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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self.app.expected_calls[('test-vm', 'admin.vm.volume.List', None,
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None)] = \
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b'0\0root\nprivate\nvolatile\nkernel\n'
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self.app.expected_calls[
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('test-vm', 'admin.vm.volume.Info', 'root', None)] = \
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b'0\x00pool=lvm\n' \
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b'vid=qubes_dom0/vm-test-vm-root\n' \
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b'size=10737418240\n' \
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b'usage=0\n' \
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b'rw=True\n' \
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b'source=\n' \
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b'save_on_stop=True\n' \
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b'snap_on_start=False\n' \
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b'revisions_to_keep=3\n' \
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b'is_outdated=False\n'
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self.app.expected_calls[('test-vm', 'admin.vm.volume.Resize', 'root',
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str(len(volume_data)).encode())] = \
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b'0\0'
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self.app.expected_calls[('test-vm', 'admin.vm.volume.Import', 'root',
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volume_data)] = b'0\0'
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vm = self.app.domains['test-vm']
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qubesadmin.tools.qvm_template_postprocess.import_root_img(
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vm, self.source_dir.name)
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self.assertAllCalled()
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def test_001_import_root_img_tar(self):
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root_img = os.path.join(self.source_dir.name, 'root.img')
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volume_data = b'volume data' * 1000
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with open(root_img, 'wb') as f:
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f.write(volume_data)
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subprocess.check_call(['tar', 'cf', 'root.img.tar', 'root.img'],
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cwd=self.source_dir.name)
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subprocess.check_call(['split', '-d', '-b', '1024', 'root.img.tar',
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'root.img.part.'], cwd=self.source_dir.name)
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os.unlink(root_img)
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self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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self.app.expected_calls[
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('test-vm', 'admin.vm.volume.Info', 'root', None)] = \
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b'0\x00pool=lvm\n' \
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b'vid=qubes_dom0/vm-test-vm-root\n' \
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b'size=10737418240\n' \
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b'usage=0\n' \
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b'rw=True\n' \
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b'source=\n' \
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b'save_on_stop=True\n' \
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b'snap_on_start=False\n' \
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b'revisions_to_keep=3\n' \
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b'is_outdated=False\n'
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self.app.expected_calls[('test-vm', 'admin.vm.volume.List', None,
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None)] = \
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b'0\0root\nprivate\nvolatile\nkernel\n'
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self.app.expected_calls[('test-vm', 'admin.vm.volume.Resize', 'root',
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str(len(volume_data)).encode())] = \
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b'0\0'
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self.app.expected_calls[('test-vm', 'admin.vm.volume.Import', 'root',
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volume_data)] = b'0\0'
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vm = self.app.domains['test-vm']
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qubesadmin.tools.qvm_template_postprocess.import_root_img(
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vm, self.source_dir.name)
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self.assertAllCalled()
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def test_002_import_root_img_no_overwrite(self):
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self.app.qubesd_connection_type = 'socket'
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template_dir = os.path.join(self.source_dir.name, 'vm-templates',
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'test-vm')
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os.makedirs(template_dir)
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root_img = os.path.join(template_dir, 'root.img')
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volume_data = b'volume data'
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with open(root_img, 'wb') as f:
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f.write(volume_data)
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self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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self.app.expected_calls[
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('test-vm', 'admin.vm.volume.List', None, None)] = \
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b'0\0root\nprivate\nvolatile\nkernel\n'
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self.app.expected_calls[
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('test-vm', 'admin.vm.volume.Info', 'root', None)] = \
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b'0\x00pool=default\n' \
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b'vid=vm-templates/test-vm/root\n' \
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b'size=10737418240\n' \
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b'usage=0\n' \
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b'rw=True\n' \
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b'source=\n' \
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b'save_on_stop=True\n' \
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b'snap_on_start=False\n' \
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b'revisions_to_keep=3\n' \
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b'is_outdated=False\n'
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self.app.expected_calls[
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('dom0', 'admin.pool.List', None, None)] = \
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b'0\0default\n'
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self.app.expected_calls[
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('dom0', 'admin.pool.Info', 'default', None)] = \
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b'0\0driver=file\ndir_path=' + self.source_dir.name.encode() + b'\n'
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vm = self.app.domains['test-vm']
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qubesadmin.tools.qvm_template_postprocess.import_root_img(
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vm, template_dir)
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self.assertAllCalled()
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def test_005_reset_private_img(self):
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self.app.qubesd_connection_type = 'socket'
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self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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self.app.expected_calls[
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('test-vm', 'admin.vm.volume.List', None, None)] = \
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b'0\0root\nprivate\nvolatile\nkernel\n'
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self.app.expected_calls[('test-vm', 'admin.vm.volume.Import', 'private',
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b'')] = b'0\0'
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vm = self.app.domains['test-vm']
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qubesadmin.tools.qvm_template_postprocess.reset_private_img(vm)
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self.assertAllCalled()
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def test_010_import_appmenus(self):
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with open(os.path.join(self.source_dir.name,
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'vm-whitelisted-appmenus.list'), 'w') as f:
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f.write('org.gnome.Terminal.desktop\n')
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f.write('firefox.desktop\n')
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with open(os.path.join(self.source_dir.name,
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'whitelisted-appmenus.list'), 'w') as f:
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f.write('org.gnome.Terminal.desktop\n')
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f.write('org.gnome.Software.desktop\n')
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f.write('gnome-control-center.desktop\n')
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self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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vm = self.app.domains['test-vm']
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with mock.patch('subprocess.check_call') as mock_proc:
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qubesadmin.tools.qvm_template_postprocess.import_appmenus(
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vm, self.source_dir.name)
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self.assertEqual(mock_proc.mock_calls, [
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mock.call(['qvm-appmenus',
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'--set-default-whitelist=' + os.path.join(self.source_dir.name,
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'vm-whitelisted-appmenus.list'), 'test-vm']),
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mock.call(['qvm-appmenus', '--set-whitelist=' + os.path.join(
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self.source_dir.name, 'whitelisted-appmenus.list'), 'test-vm']),
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])
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self.assertAllCalled()
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@mock.patch('grp.getgrnam')
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@mock.patch('os.getuid')
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def test_011_import_appmenus_as_root(self, mock_getuid, mock_getgrnam):
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with open(os.path.join(self.source_dir.name,
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'vm-whitelisted-appmenus.list'), 'w') as f:
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f.write('org.gnome.Terminal.desktop\n')
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f.write('firefox.desktop\n')
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with open(os.path.join(self.source_dir.name,
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'whitelisted-appmenus.list'), 'w') as f:
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f.write('org.gnome.Terminal.desktop\n')
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f.write('org.gnome.Software.desktop\n')
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f.write('gnome-control-center.desktop\n')
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self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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mock_getuid.return_value = 0
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mock_getgrnam.configure_mock(**{
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'return_value.gr_mem.__getitem__.return_value': 'user'
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})
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vm = self.app.domains['test-vm']
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with mock.patch('subprocess.check_call') as mock_proc:
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qubesadmin.tools.qvm_template_postprocess.import_appmenus(
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vm, self.source_dir.name)
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self.assertEqual(mock_proc.mock_calls, [
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mock.call(['runuser', '-u', 'user', '--', 'env', 'DISPLAY=:0',
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'qvm-appmenus',
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'--set-default-whitelist=' + os.path.join(self.source_dir.name,
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'vm-whitelisted-appmenus.list'), 'test-vm']),
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mock.call(['runuser', '-u', 'user', '--', 'env', 'DISPLAY=:0',
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'qvm-appmenus', '--set-whitelist=' + os.path.join(
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self.source_dir.name, 'whitelisted-appmenus.list'), 'test-vm']),
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])
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self.assertAllCalled()
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@mock.patch('grp.getgrnam')
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@mock.patch('os.getuid')
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def test_012_import_appmenus_missing_user(self, mock_getuid, mock_getgrnam):
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with open(os.path.join(self.source_dir.name,
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'vm-whitelisted-appmenus.list'), 'w') as f:
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f.write('org.gnome.Terminal.desktop\n')
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f.write('firefox.desktop\n')
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with open(os.path.join(self.source_dir.name,
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'whitelisted-appmenus.list'), 'w') as f:
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f.write('org.gnome.Terminal.desktop\n')
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f.write('org.gnome.Software.desktop\n')
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f.write('gnome-control-center.desktop\n')
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self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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mock_getuid.return_value = 0
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mock_getgrnam.side_effect = KeyError
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vm = self.app.domains['test-vm']
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with mock.patch('subprocess.check_call') as mock_proc:
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qubesadmin.tools.qvm_template_postprocess.import_appmenus(
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vm, self.source_dir.name)
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self.assertEqual(mock_proc.mock_calls, [])
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self.assertAllCalled()
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def add_new_vm_side_effect(self, *args, **kwargs):
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self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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self.app.domains.clear_cache()
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return self.app.domains['test-vm']
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@asyncio.coroutine
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def wait_for_shutdown(self, vm):
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pass
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@mock.patch('qubesadmin.tools.qvm_template_postprocess.import_appmenus')
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@mock.patch('qubesadmin.tools.qvm_template_postprocess.import_root_img')
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def test_020_post_install(self, mock_import_root_img,
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mock_import_appmenus):
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self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
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b'0\0'
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self.app.add_new_vm = mock.Mock(side_effect=self.add_new_vm_side_effect)
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self.app.expected_calls[
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('test-vm', 'admin.vm.property.Set', 'netvm', b'')] = b'0\0'
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self.app.expected_calls[
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('test-vm', 'admin.vm.property.Set', 'installed_by_rpm', b'True')] \
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= b'0\0'
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self.app.expected_calls[
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('test-vm', 'admin.vm.property.Reset', 'netvm', None)] = b'0\0'
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self.app.expected_calls[
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('test-vm', 'admin.vm.feature.Set', 'qrexec', b'1')] = b'0\0'
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self.app.expected_calls[
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('test-vm', 'admin.vm.Start', None, None)] = b'0\0'
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self.app.expected_calls[
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('test-vm', 'admin.vm.Shutdown', None, None)] = b'0\0'
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if qubesadmin.tools.qvm_template_postprocess.have_events:
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patch_domain_shutdown = mock.patch(
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'qubesadmin.events.utils.wait_for_domain_shutdown')
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self.addCleanup(patch_domain_shutdown.stop)
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mock_domain_shutdown = patch_domain_shutdown.start()
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mock_domain_shutdown.side_effect = self.wait_for_shutdown
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else:
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self.app.expected_calls[
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('test-vm', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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asyncio.set_event_loop(asyncio.new_event_loop())
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ret = qubesadmin.tools.qvm_template_postprocess.main([
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'--really', 'post-install', 'test-vm', self.source_dir.name],
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app=self.app)
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self.assertEqual(ret, 0)
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self.app.add_new_vm.assert_called_once_with('TemplateVM',
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name='test-vm', label='black')
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mock_import_root_img.assert_called_once_with(self.app.domains[
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'test-vm'], self.source_dir.name)
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mock_import_appmenus.assert_called_once_with(self.app.domains[
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'test-vm'], self.source_dir.name)
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if qubesadmin.tools.qvm_template_postprocess.have_events:
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mock_domain_shutdown.assert_called_once_with([self.app.domains[
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'test-vm']])
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self.assertEqual(self.app.service_calls, [
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('test-vm', 'qubes.PostInstall', {}),
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('test-vm', 'qubes.PostInstall', b''),
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])
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self.assertAllCalled()
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@mock.patch('qubesadmin.tools.qvm_template_postprocess.import_appmenus')
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@mock.patch('qubesadmin.tools.qvm_template_postprocess.import_root_img')
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@mock.patch('qubesadmin.tools.qvm_template_postprocess.reset_private_img')
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def test_021_post_install_reinstall(self, mock_reset_private_img,
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mock_import_root_img, mock_import_appmenus):
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self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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self.app.add_new_vm = mock.Mock()
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self.app.expected_calls[
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('test-vm', 'admin.vm.property.Set', 'netvm', b'')] = b'0\0'
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self.app.expected_calls[
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('test-vm', 'admin.vm.property.Set', 'installed_by_rpm', b'True')] \
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= b'0\0'
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self.app.expected_calls[
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('test-vm', 'admin.vm.property.Reset', 'netvm', None)] = b'0\0'
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self.app.expected_calls[
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('test-vm', 'admin.vm.feature.Set', 'qrexec', b'1')] = b'0\0'
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self.app.expected_calls[
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('test-vm', 'admin.vm.Start', None, None)] = b'0\0'
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self.app.expected_calls[
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('test-vm', 'admin.vm.Shutdown', None, None)] = b'0\0'
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if qubesadmin.tools.qvm_template_postprocess.have_events:
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patch_domain_shutdown = mock.patch(
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'qubesadmin.events.utils.wait_for_domain_shutdown')
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self.addCleanup(patch_domain_shutdown.stop)
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mock_domain_shutdown = patch_domain_shutdown.start()
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mock_domain_shutdown.side_effect = self.wait_for_shutdown
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else:
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self.app.expected_calls[
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('test-vm', 'admin.vm.List', None, None)] = \
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b'0\0test-vm class=TemplateVM state=Halted\n'
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asyncio.set_event_loop(asyncio.new_event_loop())
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ret = qubesadmin.tools.qvm_template_postprocess.main([
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'--really', 'post-install', 'test-vm', self.source_dir.name],
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app=self.app)
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self.assertEqual(ret, 0)
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self.assertFalse(self.app.add_new_vm.called)
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mock_import_root_img.assert_called_once_with(self.app.domains[
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'test-vm'], self.source_dir.name)
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mock_reset_private_img.assert_called_once_with(self.app.domains[
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'test-vm'])
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mock_import_appmenus.assert_called_once_with(self.app.domains[
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'test-vm'], self.source_dir.name)
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if qubesadmin.tools.qvm_template_postprocess.have_events:
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mock_domain_shutdown.assert_called_once_with([self.app.domains[
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'test-vm']])
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self.assertEqual(self.app.service_calls, [
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('test-vm', 'qubes.PostInstall', {}),
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('test-vm', 'qubes.PostInstall', b''),
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])
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self.assertAllCalled()
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@mock.patch('qubesadmin.tools.qvm_template_postprocess.import_appmenus')
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@mock.patch('qubesadmin.tools.qvm_template_postprocess.import_root_img')
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|
@mock.patch('qubesadmin.tools.qvm_template_postprocess.reset_private_img')
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|
def test_022_post_install_skip_start(self, mock_reset_private_img,
|
|
mock_import_root_img, mock_import_appmenus):
|
|
self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
|
|
b'0\0test-vm class=TemplateVM state=Halted\n'
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|
self.app.expected_calls[
|
|
('test-vm', 'admin.vm.property.Set', 'installed_by_rpm', b'True')] \
|
|
= b'0\0'
|
|
self.app.add_new_vm = mock.Mock()
|
|
|
|
if qubesadmin.tools.qvm_template_postprocess.have_events:
|
|
patch_domain_shutdown = mock.patch(
|
|
'qubesadmin.events.utils.wait_for_domain_shutdown')
|
|
self.addCleanup(patch_domain_shutdown.stop)
|
|
mock_domain_shutdown = patch_domain_shutdown.start()
|
|
mock_domain_shutdown.side_effect = self.wait_for_shutdown
|
|
|
|
asyncio.set_event_loop(asyncio.new_event_loop())
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|
ret = qubesadmin.tools.qvm_template_postprocess.main([
|
|
'--really', '--skip-start', 'post-install', 'test-vm',
|
|
self.source_dir.name],
|
|
app=self.app)
|
|
self.assertEqual(ret, 0)
|
|
self.assertFalse(self.app.add_new_vm.called)
|
|
mock_import_root_img.assert_called_once_with(self.app.domains[
|
|
'test-vm'], self.source_dir.name)
|
|
mock_reset_private_img.assert_called_once_with(self.app.domains[
|
|
'test-vm'])
|
|
mock_import_appmenus.assert_called_once_with(self.app.domains[
|
|
'test-vm'], self.source_dir.name)
|
|
if qubesadmin.tools.qvm_template_postprocess.have_events:
|
|
self.assertFalse(mock_domain_shutdown.called)
|
|
self.assertEqual(self.app.service_calls, [])
|
|
self.assertAllCalled()
|
|
|
|
def test_030_pre_remove(self):
|
|
self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
|
|
b'0\0test-vm class=TemplateVM state=Halted\n'
|
|
self.app.expected_calls[('test-vm', 'admin.vm.Remove', None, None)] = \
|
|
b'0\0'
|
|
self.app.expected_calls[
|
|
('test-vm', 'admin.vm.property.Set', 'installed_by_rpm', b'False')]\
|
|
= b'0\0'
|
|
self.app.expected_calls[
|
|
('test-vm', 'admin.vm.property.Get', 'template', None)] = \
|
|
b'2\0QubesNoSuchPropertyError\0\0invalid property \'template\' of ' \
|
|
b'test-vm\0'
|
|
|
|
ret = qubesadmin.tools.qvm_template_postprocess.main([
|
|
'--really', 'pre-remove', 'test-vm',
|
|
self.source_dir.name],
|
|
app=self.app)
|
|
self.assertEqual(ret, 0)
|
|
self.assertEqual(self.app.service_calls, [])
|
|
self.assertAllCalled()
|
|
|
|
def test_031_pre_remove_existing_appvm(self):
|
|
self.app.expected_calls[('dom0', 'admin.vm.List', None, None)] = \
|
|
b'0\0test-vm class=TemplateVM state=Halted\n' \
|
|
b'test-vm2 class=AppVM state=Halted\n'
|
|
self.app.expected_calls[
|
|
('test-vm', 'admin.vm.property.Get', 'template', None)] = \
|
|
b'2\0QubesNoSuchPropertyError\0\0invalid property \'template\' of ' \
|
|
b'test-vm\0'
|
|
self.app.expected_calls[
|
|
('test-vm2', 'admin.vm.property.Get', 'template', None)] = \
|
|
b'0\0default=no type=vm test-vm'
|
|
|
|
with self.assertRaises(SystemExit):
|
|
qubesadmin.tools.qvm_template_postprocess.main([
|
|
'--really', 'pre-remove', 'test-vm',
|
|
self.source_dir.name],
|
|
app=self.app)
|
|
self.assertEqual(self.app.service_calls, [])
|
|
self.assertAllCalled()
|
|
|
|
def test_040_missing_really(self):
|
|
with self.assertRaises(SystemExit):
|
|
qubesadmin.tools.qvm_template_postprocess.main([
|
|
'post-install', 'test-vm', self.source_dir.name],
|
|
app=self.app)
|
|
self.assertAllCalled()
|