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# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
#
# 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 calendar
import json
import time
import fixtures
from oslo_config import cfg
import requests
import testtools
from testtools import matchers
from os_collect_config import collect
from os_collect_config import exc
from os_collect_config import request
META_DATA = {'int1': 1,
'strfoo': 'foo',
'map_ab': {
'a': 'apple',
'b': 'banana',
}}
SOFTWARE_CONFIG_DATA = {
'old-style': 'value',
'deployments': [
{
'inputs': [
{
'type': 'String',
'name': 'input1',
'value': 'value1'
}
],
'group': 'Heat::Ungrouped',
'name': 'dep-name1',
'outputs': None,
'options': None,
'config': {
'config1': 'value1'
}
},
{
'inputs': [
{
'type': 'String',
'name': 'input1',
'value': 'value1'
}
],
'group': 'os-apply-config',
'name': 'dep-name2',
'outputs': None,
'options': None,
'config': {
'config2': 'value2'
}
},
{
'inputs': [
{
'type': 'String',
'name': 'input1',
'value': 'value1'
}
],
'name': 'dep-name3',
'outputs': None,
'options': None,
'config': {
'config3': 'value3'
}
},
{
'inputs': [],
'group': 'ignore_me',
'name': 'ignore_me_name',
'outputs': None,
'options': None,
'config': 'ignore_me_config'
}
]
}
class FakeResponse(dict):
def __init__(self, text, headers=None):
self.text = text
self.headers = headers
def raise_for_status(self):
pass
class FakeRequests:
exceptions = requests.exceptions
class Session:
def get(self, url, timeout=None):
return FakeResponse(json.dumps(META_DATA))
def head(self, url, timeout=None):
return FakeResponse('', headers={
'last-modified': time.strftime(
"%a, %d %b %Y %H:%M:%S %Z", time.gmtime())})
class FakeFailRequests:
exceptions = requests.exceptions
class Session:
def get(self, url, timeout=None):
raise requests.exceptions.HTTPError(403, 'Forbidden')
def head(self, url, timeout=None):
raise requests.exceptions.HTTPError(403, 'Forbidden')
class FakeRequestsSoftwareConfig:
class Session:
def get(self, url, timeout=None):
return FakeResponse(json.dumps(SOFTWARE_CONFIG_DATA))
def head(self, url, timeout=None):
return FakeResponse('', headers={
'last-modified': time.strftime(
"%a, %d %b %Y %H:%M:%S %Z", time.gmtime())})
class TestRequestBase(testtools.TestCase):
def setUp(self):
super().setUp()
self.log = self.useFixture(fixtures.FakeLogger())
collect.setup_conf()
cfg.CONF.request.metadata_url = 'http://192.0.2.1:8000/my_metadata'
class TestRequest(TestRequestBase):
def test_collect_request(self):
req_collect = request.Collector(requests_impl=FakeRequests)
self.assertIsNone(req_collect.last_modified)
req_md = req_collect.collect()
self.assertIsNotNone(req_collect.last_modified)
self.assertThat(req_md, matchers.IsInstance(list))
self.assertEqual('request', req_md[0][0])
req_md = req_md[0][1]
for k in ('int1', 'strfoo', 'map_ab'):
self.assertIn(k, req_md)
self.assertEqual(req_md[k], META_DATA[k])
self.assertEqual('', self.log.output)
def test_collect_request_fail(self):
req_collect = request.Collector(requests_impl=FakeFailRequests)
self.assertRaises(exc.RequestMetadataNotAvailable, req_collect.collect)
self.assertIn('Forbidden', self.log.output)
def test_collect_request_no_metadata_url(self):
cfg.CONF.request.metadata_url = None
req_collect = request.Collector(requests_impl=FakeRequests)
self.assertRaises(exc.RequestMetadataNotConfigured,
req_collect.collect)
self.assertIn('No metadata_url configured', self.log.output)
def test_check_fetch_content(self):
req_collect = request.Collector()
now_secs = calendar.timegm(time.gmtime())
now_str = time.strftime("%a, %d %b %Y %H:%M:%S %Z",
time.gmtime(now_secs))
future_secs = calendar.timegm(time.gmtime()) + 10
future_str = time.strftime("%a, %d %b %Y %H:%M:%S %Z",
time.gmtime(future_secs))
past_secs = calendar.timegm(time.gmtime()) - 10
past_str = time.strftime("%a, %d %b %Y %H:%M:%S %Z",
time.gmtime(past_secs))
self.assertIsNone(req_collect.last_modified)
# first run always collects
self.assertEqual(
now_secs,
req_collect.check_fetch_content({'last-modified': now_str}))
# second run unmodified, does not collect
req_collect.last_modified = now_secs
self.assertRaises(exc.RequestMetadataNotAvailable,
req_collect.check_fetch_content,
{'last-modified': now_str})
# run with later date, collects
self.assertEqual(
future_secs,
req_collect.check_fetch_content({'last-modified': future_str}))
# run with earlier date, does not collect
self.assertRaises(exc.RequestMetadataNotAvailable,
req_collect.check_fetch_content,
{'last-modified': past_str})
# run no last-modified header, collects
self.assertIsNone(req_collect.check_fetch_content({}))
class TestRequestSoftwareConfig(TestRequestBase):
def test_collect_request(self):
req_collect = request.Collector(
requests_impl=FakeRequestsSoftwareConfig)
req_md = req_collect.collect()
self.assertEqual(4, len(req_md))
self.assertEqual(
SOFTWARE_CONFIG_DATA['deployments'], req_md[0][1]['deployments'])
self.assertEqual(
('dep-name1', {'config1': 'value1'}), req_md[1])
self.assertEqual(
('dep-name2', {'config2': 'value2'}), req_md[2])
self.assertEqual(
('dep-name3', {'config3': 'value3'}), req_md[3])
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