1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import functools
import inspect
from oslo_utils import excutils
import nova.conf
from nova.notifications.objects import base
from nova.notifications.objects import exception
from nova.objects import fields
from nova import rpc
from nova import safe_utils
CONF = nova.conf.CONF
def _emit_exception_notification(notifier, context, ex, function_name, args,
source):
_emit_legacy_exception_notification(notifier, context, ex, function_name,
args)
_emit_versioned_exception_notification(context, ex, source)
@rpc.if_notifications_enabled
def _emit_versioned_exception_notification(context, ex, source):
versioned_exception_payload = exception.ExceptionPayload.from_exception(ex)
publisher = base.NotificationPublisher(host=CONF.host, source=source)
event_type = base.EventType(
object='compute',
action=fields.NotificationAction.EXCEPTION)
notification = exception.ExceptionNotification(
publisher=publisher,
event_type=event_type,
priority=fields.NotificationPriority.ERROR,
payload=versioned_exception_payload)
notification.emit(context)
def _emit_legacy_exception_notification(notifier, context, ex, function_name,
args):
payload = dict(exception=ex, args=args)
notifier.error(context, function_name, payload)
def wrap_exception(notifier=None, get_notifier=None, binary=None):
"""This decorator wraps a method to catch any exceptions that may
get thrown. It also optionally sends the exception to the notification
system.
"""
def inner(f):
def wrapped(self, context, *args, **kw):
# Don't store self or context in the payload, it now seems to
# contain confidential information.
try:
return f(self, context, *args, **kw)
except Exception as e:
with excutils.save_and_reraise_exception():
if notifier or get_notifier:
call_dict = _get_call_dict(
f, self, context, *args, **kw)
function_name = f.__name__
_emit_exception_notification(
notifier or get_notifier(), context, e,
function_name, call_dict, binary)
return functools.wraps(f)(wrapped)
return inner
def _get_call_dict(function, self, context, *args, **kw):
wrapped_func = safe_utils.get_wrapped_function(function)
call_dict = inspect.getcallargs(wrapped_func, self,
context, *args, **kw)
# self can't be serialized and shouldn't be in the
# payload
call_dict.pop('self', None)
# NOTE(gibi) remove context as well as it contains sensitive information
# and it can also contain circular references
call_dict.pop('context', None)
return _cleanse_dict(call_dict)
def _cleanse_dict(original):
"""Strip all admin_password, new_pass, rescue_pass keys from a dict."""
return {k: v for k, v in original.items() if "_pass" not in k}
|
