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webvirtcloud/logs/tests/test_audit.py
catborise c1d36053d6 feat(logs): every VM operation writes an audit row the VM's Logs tab finds by UUID
Operations on a VM now write their rows the way the admin audit does: one
row per operation, done or failed with a safe reason, with the user, IP and
host. Each row names the VM ("VM web-1: delete snapshot snap1") and carries
its UUID in the new Logs.instance_uuid column.

- audit_vm and failed_vm wrap audit() and failed() for a VM. A failure the
  view turns into a message is caught outside the block, so its failed row
  is written; busy claims, permission and quota refusals and invalid input
  write nothing. No password, key or XML goes into a row.
- All VM page operations move from addlogmsg to audit_vm, and addlogmsg
  goes. QoS changes and defining a VM from XML are logged now; a gstfsd
  error reply (root password, SSH key) is a failed row, not a done one.
- Partial results are rows of their own: the VM delete, then each disk
  delete; the disk detach, then the volume delete; the migration, then a
  failed autostart restore, NVRAM removal or record on the target.
- Migration rows use the compute name as the host column, as every other
  row does.
- VM job rows (create, clone, snapshots) and their resolutions carry the
  VM's UUID; snapshot job intents now record it. The owner rows of the VM
  page and the accounts pages, and the ownership system rows, carry it too.
- The Logs tab loads vm_logs/<pk>/ and shows the rows with the VM's UUID,
  so a rename keeps the history, two VMs with one name are told apart and
  a VM on two computes is one VM. It gains a Result column. Rows from
  before this change have no UUID and stay on the Logs page only.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-24 14:14:53 +03:00

163 lines
7.6 KiB
Python

from unittest import mock
import libvirt
from django.contrib.auth import get_user_model
from django.contrib.auth.models import Group
from django.db import IntegrityError, transaction
from django.test import RequestFactory, TestCase
from computes.models import Compute
from instances.models import Instance
from logs.audit import audit, audit_vm, changed_fields, failed, failed_vm, request_ip, snapshot, write
from logs.models import Logs
from operations import claims
from vrtManager.util import OperationError
class WriteTests(TestCase):
def test_a_row_has_its_fields(self):
write("bob", "host1", "", "Compute c: delete", True, "192.0.2.7")
row = Logs.objects.get()
self.assertEqual((row.user, row.host, row.instance), ("bob", "host1", ""))
self.assertEqual(row.message, "Compute c: delete")
self.assertIs(row.success, True)
self.assertEqual(row.ip, "192.0.2.7")
def test_long_values_are_cut(self):
write("u" * 200, "h" * 300, "i" * 200, "m" * 5000)
row = Logs.objects.get()
self.assertEqual(len(row.user), 150)
self.assertEqual(len(row.host), 255)
self.assertEqual(len(row.instance), 120)
self.assertEqual(len(row.message), 5000)
def test_a_failed_write_inside_a_transaction_leaves_it_usable(self):
with self.assertLogs("logs.audit", "WARNING") as logs:
with transaction.atomic():
with mock.patch.object(Logs.objects, "create", side_effect=IntegrityError):
write("bob", "-", "", "msg")
get_user_model().objects.create_user("after")
self.assertEqual(len(logs.output), 1)
self.assertTrue(get_user_model().objects.filter(username="after").exists())
def test_the_file_line_keeps_one_line(self):
with self.assertLogs("logs.audit", "WARNING") as logs:
with mock.patch.object(Logs.objects, "create", side_effect=IntegrityError):
write("bob", "-", "", "a\nb")
self.assertNotIn("\n", logs.records[0].getMessage())
self.assertIn("a\\nb", logs.records[0].getMessage())
def test_a_failing_file_logger_raises_nothing(self):
with mock.patch.object(Logs.objects, "create", side_effect=IntegrityError), mock.patch(
"logs.audit.logger.warning", side_effect=OSError
):
self.assertIsNone(write("bob", "-", "", "msg"))
def test_ips(self):
rf = RequestFactory()
self.assertEqual(request_ip(rf.get("/", REMOTE_ADDR="192.0.2.7")), "192.0.2.7")
self.assertIsNone(request_ip(rf.get("/", REMOTE_ADDR="127.0.0.1", HTTP_X_REAL_IP="not-an-ip")))
self.assertEqual(request_ip(rf.get("/", REMOTE_ADDR="127.0.0.1", HTTP_X_REAL_IP="")), "127.0.0.1")
self.assertIsNone(request_ip(rf.get("/", REMOTE_ADDR="127.0.0.1", HTTP_X_REAL_IP="fe80::1%eth0")))
self.assertIsNone(request_ip(rf.get("/", REMOTE_ADDR="")))
def test_a_row_without_a_vm_has_no_uuid(self):
write("u", "h", "", "Network lab: start", True)
self.assertEqual(Logs.objects.get().instance_uuid, "")
class AuditTests(TestCase):
def setUp(self):
self.user = get_user_model().objects.create_user("bob")
self.request = RequestFactory().get("/", REMOTE_ADDR="192.0.2.7")
self.request.user = self.user
self.compute = Compute(name="c", hostname="192.0.2.5", type=1)
def row(self):
return Logs.objects.get()
def test_a_block_that_ends_writes_done(self):
with audit(self.request, self.compute, "Compute c (192.0.2.5)", "delete"):
pass
row = self.row()
self.assertEqual(row.message, "Compute c (192.0.2.5): delete")
self.assertIs(row.success, True)
self.assertEqual((row.host, row.user, row.ip), ("c", "bob", "192.0.2.7"))
def test_a_block_that_raises_writes_failed_and_reraises(self):
error = OperationError("in use")
with self.assertRaises(OperationError) as caught:
with audit(self.request, self.compute, "Compute c", "delete"):
raise error
self.assertIs(caught.exception, error)
row = self.row()
self.assertEqual(row.message, "Compute c: delete: in use")
self.assertIs(row.success, False)
def reason_row(self, exc):
Logs.objects.all().delete()
with self.assertRaises(type(exc)):
with audit(self.request, None, "Compute c", "delete"):
raise exc
return self.row().message
def test_reasons(self):
self.assertEqual(
self.reason_row(claims.Busy(None)),
"Compute c: delete: A short operation is in progress on this resource; try again in a moment.",
)
self.assertNotIn("secret", self.reason_row(libvirt.libvirtError("password=secret")))
self.assertEqual(self.reason_row(ValueError("<secret/>")), "Compute c: delete: ValueError")
def test_the_block_sets_the_action_or_skips(self):
with audit(self.request, self.compute, "Compute c", "edit") as entry:
entry.action = "change hostname"
self.assertEqual(self.row().message, "Compute c: change hostname")
Logs.objects.all().delete()
with audit(self.request, self.compute, "Compute c", "edit") as entry:
entry.skip = True
self.assertFalse(Logs.objects.exists())
with self.assertRaises(ValueError):
with audit(self.request, self.compute, "Compute c", "edit") as entry:
entry.skip = True
raise ValueError
self.assertEqual(self.row().message, "Compute c: edit: ValueError")
self.assertIs(self.row().success, False)
def test_failed_writes_a_refusal(self):
failed(self.request, None, "Network lab", "create", "Name in use")
row = self.row()
self.assertEqual(row.message, "Network lab: create: Name in use")
self.assertEqual(row.host, "-")
self.assertIs(row.success, False)
def test_vm_rows_name_the_vm_and_carry_its_uuid(self):
vm = Instance(compute=self.compute, name="web-1", uuid="11111111-2222-3333-4444-555555555555")
with audit_vm(self.request, vm, "power on"):
pass
with self.assertRaises(OperationError):
with audit_vm(self.request, vm, "power off"):
raise OperationError("not running")
failed_vm(self.request, vm, "reset root password", "gstfsd error: timed out")
self.assertEqual(
list(Logs.objects.order_by("id").values_list("host", "instance", "instance_uuid", "message", "success")), [
("c", "web-1", vm.uuid, "VM web-1: power on", True),
("c", "web-1", vm.uuid, "VM web-1: power off: not running", False),
("c", "web-1", vm.uuid, "VM web-1: reset root password: gstfsd error: timed out", False),
])
def test_the_block_may_set_the_uuid_it_learns(self):
with audit(self.request, self.compute, "VM web-1", "define from XML", instance="web-1") as entry:
entry.uuid = "11111111-2222-3333-4444-555555555555"
self.assertEqual(self.row().instance_uuid, "11111111-2222-3333-4444-555555555555")
def test_changed_fields(self):
compute = Compute.objects.create(name="c", hostname="192.0.2.5", type=1, password="pw")
before = snapshot(compute)
self.assertEqual(changed_fields(before, snapshot(compute)), [])
compute.hostname = "192.0.2.6"
self.assertEqual(changed_fields(before, snapshot(compute)), ["hostname"])
before = snapshot(self.user)
self.user.groups.add(Group.objects.create(name="g"))
self.assertEqual(changed_fields(before, snapshot(self.user)), ["groups"])