122 lines
3.7 KiB
Python
122 lines
3.7 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright (c) 2013 eNovance
|
|
#
|
|
# 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.
|
|
"""
|
|
Send notifications on request
|
|
|
|
"""
|
|
import os.path
|
|
import sys
|
|
import traceback as tb
|
|
|
|
import webob.dec
|
|
|
|
from ceilometer.openstack.common import context
|
|
from ceilometer.openstack.common.gettextutils import _ # noqa
|
|
from ceilometer.openstack.common import log as logging
|
|
from ceilometer.openstack.common.middleware import base
|
|
from ceilometer.openstack.common.notifier import api
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
def log_and_ignore_error(fn):
|
|
def wrapped(*args, **kwargs):
|
|
try:
|
|
return fn(*args, **kwargs)
|
|
except Exception as e:
|
|
LOG.exception(_('An exception occurred processing '
|
|
'the API call: %s ') % e)
|
|
return wrapped
|
|
|
|
|
|
class RequestNotifier(base.Middleware):
|
|
"""Send notification on request."""
|
|
|
|
@classmethod
|
|
def factory(cls, global_conf, **local_conf):
|
|
"""Factory method for paste.deploy."""
|
|
conf = global_conf.copy()
|
|
conf.update(local_conf)
|
|
|
|
def _factory(app):
|
|
return cls(app, **conf)
|
|
return _factory
|
|
|
|
def __init__(self, app, **conf):
|
|
self.service_name = conf.get('service_name', None)
|
|
super(RequestNotifier, self).__init__(app)
|
|
|
|
@staticmethod
|
|
def environ_to_dict(environ):
|
|
"""Following PEP 333, server variables are lower case, so don't
|
|
include them.
|
|
|
|
"""
|
|
return dict((k, v) for k, v in environ.iteritems()
|
|
if k.isupper() and k != 'HTTP_X_AUTH_TOKEN')
|
|
|
|
@log_and_ignore_error
|
|
def process_request(self, request):
|
|
request.environ['HTTP_X_SERVICE_NAME'] = \
|
|
self.service_name or request.host
|
|
payload = {
|
|
'request': self.environ_to_dict(request.environ),
|
|
}
|
|
|
|
api.notify(context.get_admin_context(),
|
|
api.publisher_id(os.path.basename(sys.argv[0])),
|
|
'http.request',
|
|
api.INFO,
|
|
payload)
|
|
|
|
@log_and_ignore_error
|
|
def process_response(self, request, response,
|
|
exception=None, traceback=None):
|
|
payload = {
|
|
'request': self.environ_to_dict(request.environ),
|
|
}
|
|
|
|
if response:
|
|
payload['response'] = {
|
|
'status': response.status,
|
|
'headers': response.headers,
|
|
}
|
|
|
|
if exception:
|
|
payload['exception'] = {
|
|
'value': repr(exception),
|
|
'traceback': tb.format_tb(traceback)
|
|
}
|
|
|
|
api.notify(context.get_admin_context(),
|
|
api.publisher_id(os.path.basename(sys.argv[0])),
|
|
'http.response',
|
|
api.INFO,
|
|
payload)
|
|
|
|
@webob.dec.wsgify
|
|
def __call__(self, req):
|
|
self.process_request(req)
|
|
try:
|
|
response = req.get_response(self.application)
|
|
except Exception:
|
|
type, value, traceback = sys.exc_info()
|
|
self.process_response(req, None, value, traceback)
|
|
raise
|
|
else:
|
|
self.process_response(req, response)
|
|
return response
|