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webvirtcloud/instances/test_console_settings_access.py
catborise 01a42079be fix(instances): the page of a VM on an unreachable host points to the list
The VM page reads the VM from libvirt throughout. When its host could
not be reached, the connection error replaced the page with the error
page and showed libvirt's message, which names the host and how it is
reached, to any user who may view the VM.

The page now checks Compute.status first. If the host is not connected,
it goes to the instance list with a message: administrators (superuser
or view_instances) get the host and the error, other users only that
the VM's host cannot be reached right now. The list shows the VM as
unknown.

This covers the page itself; actions on the VM still report libvirt's
error if the host drops. The detail page tests now mock a connected
host.

Checked against the test hosts: a real VM's page opens as before, a VM
on an unreachable compute leads to the list with the user's or the
administrator's message. The new tests fail on the previous code.
2026-10-05 12:32:42 +03:00

87 lines
3.8 KiB
Python

"""
The console settings form on the VM detail page carries the VNC password
(PasswordInput(render_value=True)). It must only be rendered for users who may
change console settings, which is the rule update_console enforces: a
superuser, or an owner with both is_change and is_vnc. In particular, is_staff
and the global view_instances permission must not reveal the VNC password.
"""
from unittest.mock import PropertyMock, patch
from django.contrib.auth import get_user_model
from django.contrib.auth.models import Permission
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
VNC_PASSWORD = "s3cretVNCpass"
class ConsoleSettingsAccessTestCase(TestCase):
def setUp(self):
User = get_user_model()
view_perm = Permission.objects.get(codename="view_instances")
self.superuser = User.objects.create_superuser(
username="vncpw_super", email="vncpw_super@example.com", password="x"
)
self.staff_viewer = User.objects.create_user(
username="vncpw_staff_viewer", password="x", is_staff=True
)
self.staff_viewer.user_permissions.add(view_perm)
self.staff_owner = User.objects.create_user(
username="vncpw_staff_owner", password="x", is_staff=True
)
self.vnc_owner = User.objects.create_user(username="vncpw_vnc_owner", password="x")
self.compute = Compute.objects.create(
name="vncpw-compute", hostname="127.0.0.1:1", login="root", password="", type=1
)
self.instance = Instance.objects.create(
compute=self.compute,
name="vncpw-vm",
uuid="cccccccc-dddd-eeee-ffff-000000000000",
)
UserInstance.objects.create(
instance=self.instance, user=self.staff_owner, is_change=True, is_vnc=False
)
UserInstance.objects.create(
instance=self.instance, user=self.vnc_owner, is_change=True, is_vnc=True
)
def _detail_page(self, user):
self.client.force_login(user)
with patch("instances.models.wvmInstance") as mock_wvm, patch.object(
Compute, "status", new_callable=PropertyMock, return_value=True
):
proxy = mock_wvm.return_value
proxy.get_memory.return_value = 1024
proxy.get_cur_memory.return_value = 1024
proxy.get_max_memory.return_value = 4096
proxy.get_networks.return_value = []
proxy.get_ifaces.return_value = []
proxy.get_storages.return_value = []
proxy.get_console_passwd.return_value = VNC_PASSWORD
proxy.get_console_type.return_value = "vnc"
proxy.get_status.return_value = 5
proxy.get_disk_devices.return_value = []
proxy.get_media_devices.return_value = []
proxy.get_net_devices.return_value = []
response = self.client.get(
reverse("instances:instance", args=[self.instance.id])
)
self.assertEqual(response.status_code, 200)
return response.content.decode()
def test_staff_with_view_instances_does_not_see_vnc_password(self):
self.assertFalse(VNC_PASSWORD in self._detail_page(self.staff_viewer), "VNC password leaked")
def test_staff_owner_without_is_vnc_does_not_see_vnc_password(self):
self.assertFalse(VNC_PASSWORD in self._detail_page(self.staff_owner), "VNC password leaked")
def test_owner_with_is_change_and_is_vnc_sees_console_settings(self):
self.assertTrue(VNC_PASSWORD in self._detail_page(self.vnc_owner), "console settings missing")
def test_superuser_sees_console_settings(self):
self.assertTrue(VNC_PASSWORD in self._detail_page(self.superuser), "console settings missing")