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webvirtcloud/instances/test_disk_isolation.py
catborise b04f656d2b ci: replace super-linter with ruff
Super-linter ran from the unpinned :latest image and, because of
branches-ignore: [master], never on pull requests to master. Ruff now
checks syntax errors and pyflakes rules (E9, F) on every push and PR.

Fixes the existing findings: unused imports and variables, an unused
duplicate import in instances/tests.py, and the star import in
accounts/views.py. settings-dev.py keeps its star import of the base
settings.
2026-10-04 01:08:11 +03:00

312 lines
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Python

"""
Regression tests for ROADMAP Wave 0 item 1 (S-02, S-03, S-04):
disk and media mutation views must be superuser-only (matching the UI, where
the Disk tab is only rendered for superusers), and even for superusers the
views must not act on volumes or option values taken blindly from the client.
"""
from unittest.mock import patch
from django.contrib.auth import get_user_model
from django.test import TestCase
from django.urls import reverse
from accounts.models import UserInstance
from computes.models import Compute
from instances.models import Instance
DISK_ENDPOINTS = [
("add_new_vol", []),
("add_existing_vol", []),
("edit_volume", []),
("delete_vol", []),
("detach_vol", []),
("add_cdrom", []),
("detach_cdrom", ["hda"]),
("mount_iso", []),
("unmount_iso", []),
]
VM_DISK = {
"dev": "vda",
"bus": "virtio",
"image": "vm-disk.qcow2",
"storage": "default",
"path": "/var/lib/libvirt/images/vm-disk.qcow2",
"format": "qcow2",
}
class DiskViewsTenantIsolationTestCase(TestCase):
def setUp(self):
User = get_user_model()
self.superuser = User.objects.create_superuser(
username="disk_super", email="disk_super@example.com", password="password"
)
self.change_user = User.objects.create_user(
username="disk_change_user", password="password"
)
self.staff_change_user = User.objects.create_user(
username="disk_staff_change_user", password="password", is_staff=True
)
self.compute = Compute.objects.create(
name="disk-compute", hostname="127.0.0.1", login="root", password="", type=1
)
self.instance = Instance.objects.create(
compute=self.compute,
name="disk-test-vm",
uuid="aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
)
for user in (self.change_user, self.staff_change_user):
UserInstance.objects.create(
instance=self.instance, user=user, is_change=True, is_delete=False
)
self.referer = f"/instances/{self.instance.id}/"
def _url(self, name, extra=()):
return reverse(f"instances:{name}", args=[self.instance.id, *extra])
def _post(self, name, data, extra=()):
return self.client.post(self._url(name, extra), data, HTTP_REFERER=self.referer)
def test_owner_with_is_change_cannot_mutate_disks(self):
for user in (self.change_user, self.staff_change_user):
self.client.force_login(user)
with patch("instances.models.wvmInstance") as mock_wvm, patch(
"instances.views.wvmStorage"
) as mock_storage, patch("instances.views.wvmCreate") as mock_create:
for name, extra in DISK_ENDPOINTS:
res = self._post(
name,
{"storage": "default", "name": "victim.qcow2", "dev": "vda"},
extra,
)
self.assertEqual(
res.status_code, 403, f"{user.username} POST {name} should be 403"
)
mock_wvm.assert_not_called()
mock_storage.assert_not_called()
mock_create.assert_not_called()
def test_delete_vol_deletes_the_volume_attached_to_dev_not_the_posted_one(self):
self.client.force_login(self.superuser)
with patch("instances.models.wvmInstance") as mock_wvm, patch(
"instances.views.wvmStorage"
) as mock_storage:
mock_wvm.return_value.get_disk_devices.return_value = [VM_DISK]
res = self._post(
"delete_vol",
{"storage": "other-pool", "name": "victim.qcow2", "dev": "vda"},
)
self.assertEqual(res.status_code, 302)
mock_wvm.return_value.detach_disk.assert_called_once_with("vda")
self.assertEqual(mock_storage.call_args[0][-1], "default")
mock_storage.return_value.del_volume.assert_called_once_with("vm-disk.qcow2")
def test_delete_vol_refuses_dev_not_attached_to_vm(self):
self.client.force_login(self.superuser)
with patch("instances.models.wvmInstance") as mock_wvm, patch(
"instances.views.wvmStorage"
) as mock_storage:
mock_wvm.return_value.get_disk_devices.return_value = [VM_DISK]
res = self._post(
"delete_vol",
{"storage": "default", "name": "victim.qcow2", "dev": "vdz"},
)
self.assertEqual(res.status_code, 302)
mock_wvm.return_value.detach_disk.assert_not_called()
mock_storage.return_value.del_volume.assert_not_called()
def test_edit_volume_rejects_unknown_cache_mode(self):
self.client.force_login(self.superuser)
with patch("instances.models.wvmInstance") as mock_wvm:
proxy = mock_wvm.return_value
proxy.get_disk_devices.return_value = [VM_DISK]
proxy.get_media_devices.return_value = []
proxy.get_disk_bus_types.return_value = ["virtio", "sata", "scsi"]
proxy.get_cache_modes.return_value = {"default": "", "none": ""}
proxy.get_io_modes.return_value = {"default": "", "native": ""}
proxy.get_discard_modes.return_value = {"default": "", "unmap": ""}
proxy.get_detect_zeroes_modes.return_value = {"default": "", "on": ""}
res = self._post(
"edit_volume",
{
"edit_volume": "1",
"dev": "vda",
"vol_path": VM_DISK["path"],
"vol_bus_old": "virtio",
"vol_bus": "virtio",
"vol_format": "qcow2",
"vol_cache": "none' io='native",
},
)
self.assertEqual(res.status_code, 302)
proxy.edit_disk.assert_not_called()
proxy.attach_disk.assert_not_called()
proxy.detach_disk.assert_not_called()
def test_add_new_vol_rejects_unknown_bus(self):
self.client.force_login(self.superuser)
with patch("instances.models.wvmInstance") as mock_wvm, patch(
"instances.views.wvmCreate"
) as mock_create, patch("instances.views.wvmStorage"):
proxy = mock_wvm.return_value
proxy.get_disk_devices.return_value = [VM_DISK]
proxy.get_media_devices.return_value = []
proxy.get_disk_bus_types.return_value = ["virtio", "sata", "scsi"]
proxy.get_cache_modes.return_value = {"default": "", "none": ""}
res = self._post(
"add_new_vol",
{
"storage": "default",
"name": "new-disk",
"format": "qcow2",
"size": "10",
"bus": "virtio'/><disk",
"cache": "default",
},
)
self.assertEqual(res.status_code, 302)
mock_create.return_value.create_volume.assert_not_called()
proxy.attach_disk.assert_not_called()
def test_add_existing_vol_rejects_volume_not_in_pool(self):
self.client.force_login(self.superuser)
with patch("instances.models.wvmInstance") as mock_wvm, patch(
"instances.views.wvmStorage"
) as mock_storage:
proxy = mock_wvm.return_value
proxy.get_disk_devices.return_value = [VM_DISK]
proxy.get_media_devices.return_value = []
proxy.get_disk_bus_types.return_value = ["virtio", "sata", "scsi"]
proxy.get_cache_modes.return_value = {"default": "", "none": ""}
mock_storage.return_value.get_volumes.return_value = ["vm-disk.qcow2"]
res = self._post(
"add_existing_vol",
{
"selected_storage": "default",
"vols": "../../../etc/shadow",
"bus": "virtio",
"cache": "default",
},
)
self.assertEqual(res.status_code, 302)
proxy.attach_disk.assert_not_called()
def _mock_disk_options(self, proxy):
proxy.get_disk_devices.return_value = [VM_DISK]
proxy.get_media_devices.return_value = []
proxy.get_disk_bus_types.return_value = ["virtio", "sata", "scsi"]
proxy.get_cache_modes.return_value = {"default": "", "none": ""}
proxy.get_io_modes.return_value = {"default": "", "native": ""}
proxy.get_discard_modes.return_value = {"default": "", "unmap": ""}
proxy.get_detect_zeroes_modes.return_value = {"default": "", "on": ""}
def test_add_new_vol_rejects_unsafe_volume_name(self):
self.client.force_login(self.superuser)
with patch("instances.models.wvmInstance") as mock_wvm, patch(
"instances.views.wvmCreate"
) as mock_create, patch("instances.views.wvmStorage"):
self._mock_disk_options(mock_wvm.return_value)
res = self._post(
"add_new_vol",
{
"storage": "default",
"name": "x</name><key>/etc/shadow",
"format": "qcow2",
"size": "10",
"bus": "virtio",
"cache": "default",
},
)
self.assertEqual(res.status_code, 302)
mock_create.return_value.create_volume.assert_not_called()
def test_edit_volume_accepts_valid_options(self):
self.client.force_login(self.superuser)
with patch("instances.models.wvmInstance") as mock_wvm:
proxy = mock_wvm.return_value
self._mock_disk_options(proxy)
res = self._post(
"edit_volume",
{
"edit_volume": "1",
"dev": "vda",
"vol_path": VM_DISK["path"],
"vol_bus_old": "virtio",
"vol_bus": "virtio",
"vol_format": "qcow2",
"vol_serial": "SER-01",
"vol_cache": "none",
"vol_io_mode": "native",
"vol_discard_mode": "unmap",
"vol_detect_zeroes": "on",
},
)
self.assertEqual(res.status_code, 302)
proxy.edit_disk.assert_called_once_with(
"vda", VM_DISK["path"], False, False, "virtio", "SER-01", "qcow2",
"none", "native", "unmap", "on",
)
def _edit_volume_post(self, **extra):
data = {
"edit_volume": "1",
"dev": "vda",
"vol_path": VM_DISK["path"],
"vol_bus_old": "virtio",
"vol_bus": "virtio",
"vol_format": "qcow2",
"vol_cache": "none",
}
data.update(extra)
return self._post("edit_volume", data)
def test_edit_volume_bus_change_keeps_the_disk_and_applies_options(self):
from vrtManager.instance import wvmInstance
self.client.force_login(self.superuser)
with patch("instances.models.wvmInstance", autospec=wvmInstance) as mock_wvm:
proxy = mock_wvm.return_value
self._mock_disk_options(proxy)
proxy.get_status.return_value = 1
res = self._edit_volume_post(vol_bus="sata")
self.assertEqual(res.status_code, 302)
proxy.attach_disk.assert_not_called()
proxy.detach_disk.assert_not_called()
proxy.edit_disk.assert_called_once()
self.assertEqual(proxy.edit_disk.call_args.args[0], "vda")
self.assertEqual(proxy.edit_disk.call_args.args[4], "sata")
def test_edit_volume_keeps_current_format_when_field_is_none_or_empty(self):
self.client.force_login(self.superuser)
for value in ("None", ""):
with self.subTest(vol_format=value), patch("instances.models.wvmInstance") as mock_wvm:
proxy = mock_wvm.return_value
self._mock_disk_options(proxy)
self._edit_volume_post(vol_format=value)
proxy.edit_disk.assert_called_once()
self.assertEqual(proxy.edit_disk.call_args[0][6], VM_DISK["format"])
def test_disk_names_with_trailing_newline_are_rejected(self):
self.client.force_login(self.superuser)
with patch("instances.models.wvmInstance") as mock_wvm, patch(
"instances.views.wvmCreate"
) as mock_create, patch("instances.views.wvmStorage"):
self._mock_disk_options(mock_wvm.return_value)
self._post(
"add_new_vol",
{"storage": "default", "name": "disk\n", "format": "qcow2", "size": "1",
"bus": "virtio", "cache": "default"},
)
mock_create.return_value.create_volume.assert_not_called()
def test_edit_volume_accepts_a_disk_without_any_driver_format(self):
self.client.force_login(self.superuser)
no_format_disk = dict(VM_DISK, format=None)
with patch("instances.models.wvmInstance") as mock_wvm:
proxy = mock_wvm.return_value
self._mock_disk_options(proxy)
proxy.get_disk_devices.return_value = [no_format_disk]
self._edit_volume_post(vol_format="None")
proxy.edit_disk.assert_called_once()
self.assertEqual(proxy.edit_disk.call_args[0][6], "")