def test_get_queue_client_expired_token(self):
"""
Exception handler should deal with a bad token by clearing
cache and retrying. So if we provide a bad token followed
by a real one in our mock, we expect it to end up getting
the real token.
"""
real_token = StorageUtilities.get_storage_token(self.session)
with patch('c7n_azure.storage_utils.QueueService.create_queue'
) as create_mock:
with patch(
'c7n_azure.storage_utils.StorageUtilities.get_storage_token'
) as token_mock:
error = AzureHttpError('', 403)
error.error_code = 'AuthenticationFailed'
# Two side effects: one with a bad token and an error,
# and one with a good token and no error
create_mock.side_effect = [error, None]
token_mock.side_effect = [TokenCredential('fake'), real_token]
url = "https://fake.queue.core.windows.net/testcc"
queue_service, queue_name = \
StorageUtilities.get_queue_client_by_uri(url, self.session)
# We end up with the real token (after a retry)
self.assertEqual(real_token, queue_service.authentication)
def _get_azure_storage_token():
tenant_id = os.getenv("AZ_TENANT_ID", "")
client_id = os.getenv("AZ_CLIENT_ID", "")
client_secret = os.getenv("AZ_CLIENT_SECRET", "")
subscription_id = os.getenv("AZ_SUBSCRIPTION_ID", "")
if tenant_id == "" or client_id == "" or client_secret == "" or subscription_id == "":
return None
# note the SP must have "Storage Blob Data Owner" perms for this to work
import adal
from azure.storage.common import TokenCredential
authority_url = "https://login.microsoftonline.com/" + tenant_id
context = adal.AuthenticationContext(authority_url)
token = context.acquire_token_with_client_credentials(
"https://storage.azure.com/",
client_id,
client_secret)
token_credential = TokenCredential(token["accessToken"])
logging.info("Retrieved SP token credential for client_id: %s", client_id)
return token_credential
def test_token_credential(self):
token_credential = TokenCredential(self.generate_oauth_token())
# Action 1: make sure token works
service = QueueService(self.settings.STORAGE_ACCOUNT_NAME, token_credential=token_credential)
queues = list(service.list_queues())
self.assertIsNotNone(queues)
# Action 2: change token value to make request fail
token_credential.token = "YOU SHALL NOT PASS"
with self.assertRaises(AzureException):
queues = list(service.list_queues())
self.assertIsNone(queues)
# Action 3: update token to make it working again
token_credential.token = self.generate_oauth_token()
queues = list(service.list_queues())
self.assertIsNotNone(queues)
def _get_service(self):
token_credential = TokenCredential(self.get_token_func())
service = BlockBlobService(token_credential=token_credential,
account_name=self.aad_account_name,
socket_timeout=120)
service.retry = ExponentialRetry(initial_backoff=5,
increment_base=5,
max_attempts=5).retry
return service
def test_token_credential(self):
token_credential = TokenCredential(self.generate_oauth_token())
# Action 1: make sure token works
service = BlockBlobService(self.settings.OAUTH_STORAGE_ACCOUNT_NAME,
token_credential=token_credential)
result = service.exists("test")
self.assertIsNotNone(result)
# Action 2: change token value to make request fail
token_credential.token = "YOU SHALL NOT PASS"
with self.assertRaises(AzureException):
result = service.exists("test")
self.assertIsNone(result)
# Action 3: update token to make it working again
token_credential.token = self.generate_oauth_token()
result = service.exists("test")
self.assertIsNotNone(result)
def blob_service(self):
self._get_or_create_storage_account()
if not self._block_blob_service:
if self._access_token:
token_credential = TokenCredential(self._access_token)
self._block_blob_service = BlockBlobService(
account_name=self.storage_account,
token_credential=token_credential)
else:
self._block_blob_service = BlockBlobService(
account_name=self.storage_account,
account_key=self.access_key_result.keys[0].value)
return self._block_blob_service
def _get_token_from_service_principal(self):
from azure.common.credentials import ServicePrincipalCredentials
from azure.storage.common import TokenCredential
sp_cred = ServicePrincipalCredentials(
client_id=self.client_id,
secret=self.client_secret,
tenant=self.tenant_id,
resource="https://storage.azure.com/",
)
token_cred = TokenCredential(sp_cred.token["access_token"])
return token_cred
def __init__(self,
auth: AzureAuth,
account_name: str,
container_name: str,
base_path: str = ""):
Storage.__init__(self, base_path=base_path)
self.container_name = container_name
self.blob_service = BlockBlobService(
account_name=account_name,
account_key=auth.key_token,
token_credential=TokenCredential(auth.service_principal_token),
connection_string=auth.connection_string_token)
def get_storage_token(session):
if session.resource_namespace != RESOURCE_STORAGE:
session = session.get_session_for_resource(RESOURCE_STORAGE)
return TokenCredential(session.get_bearer_token())
def _get_user_delegation_key(self, key_start_time, key_expiry_time):
token_credential = TokenCredential(self.generate_oauth_token())
service = BlockBlobService(self.settings.OAUTH_STORAGE_ACCOUNT_NAME,
token_credential=token_credential)
return service.get_user_delegation_key(key_start_time, key_expiry_time)
def save_aad_auditlogs(auditlog_type, tenant_id, client_id, client_secret,
storage_account, storage_container):
METADATA_LAST_DATETIME = "last_datetime"
METADATA_LAST_EXECUTION = "last_execution"
log("Save " + auditlog_type + " to " + storage_account + "/" +
storage_container)
# Create AAD authentication context to use for obtaining access tokens
auth_context = AuthenticationContext(AAD_ENDPOINT_URI + tenant_id)
# Get access token for storage.azure.com
storage_token_response = auth_context.acquire_token_with_client_credentials(
"https://storage.azure.com/", client_id, client_secret)
# Create Azure Blob service client
blob_service = BlockBlobService(storage_account,
endpoint_suffix=STORAGE_ENDPOINT_SUFFIX,
token_credential=TokenCredential(
storage_token_response['accessToken']))
# Create container if it does not yet exist
blob_service.create_container(storage_container, fail_on_exist=False)
# Get datetime of last record from container metadata
# NOTE: Date strings have nanosecond precision so would require numpy.datetime64 for parsing
container_metadata = blob_service.get_container_metadata(storage_container)
last_datetime = ""
if METADATA_LAST_DATETIME in container_metadata:
last_datetime = container_metadata[METADATA_LAST_DATETIME]
else:
last_datetime = datetime.strftime(datetime.now() - timedelta(days=90),
"%Y-%m-%dT%H:%M:%S.%fZ")
log("Previous value container last_datetime=" + last_datetime + "")
# Get access token for graph.microsoft.com
graph_token_response = auth_context.acquire_token_with_client_credentials(
GRAPH_ENDPOINT_URI, client_id, client_secret)
# Initial request filtered by latest date time with a batch of 500
if auditlog_type == "directoryAudits":
datetime_record_name = "activityDateTime"
graph_uri = (GRAPH_ENDPOINT_URI +
'beta/auditLogs/directoryAudits?$top=500&$filter=' +
datetime_record_name + ' gt ' + last_datetime)
elif auditlog_type == "signIns":
datetime_record_name = "createdDateTime"
graph_uri = (GRAPH_ENDPOINT_URI +
'beta/auditLogs/signIns?$top=500&$filter=' +
datetime_record_name + ' gt ' + last_datetime)
else:
log("Unknown auditlog_type = " + auditlog_type)
return
max_record_datetime = last_datetime
# May need to loop multiple times to get all of the data and retry throttled requestes with status code 429
request_count = 0
error_count = 0
max_requests = 100
max_errors = 50
while request_count < max_requests and error_count < max_errors:
request_count += 1
# Issue Graph API request
session = requests.Session()
session.headers.update(
{'Authorization': "Bearer " + graph_token_response['accessToken']})
response = session.get(graph_uri)
content_length = len(response.content)
response_json = response.json()
log("Get " + graph_uri + " returned status_code=" +
str(response.status_code) + "; content_length=" +
str(content_length) + "; requests=" + str(request_count) + "/" +
str(max_requests) + "; errors=" + str(error_count) + "/" +
str(max_errors))
if response.status_code != 200:
error_count += 1
log("*** ERROR ***")
log("Headers: " + str(response.headers))
log("Content: " + response.text)
if response.status_code == 403:
# Exit immediately
log("Permission denied, existing.")
return
elif response.status_code == 429:
# Pause for longer when throttled
log("Request was throttled, waiting 10 seconds...")
time.sleep(10.0)
continue
else:
# Pause before retry
log("Waiting 5 seconds...")
time.sleep(5.0)
continue
# Check if received valid response
if 'value' in response_json:
count = len(response_json['value'])
# Records are ordered in descending order by activityDateTime/createdDateTime, so first record is the
# newest and last is the oldest
if count > 0:
last_record_datetime = response_json['value'][0][
datetime_record_name]
first_record_datetime = response_json['value'][
count - 1][datetime_record_name]
# Upload logs to blob storage
blob_name = ("logs_" + first_record_datetime.replace(":", "") +
"_" + last_record_datetime.replace(":", "") +
"_" + str(count) + ".json")
blob_service.create_blob_from_text(
storage_container,
blob_name,
json.dumps(response_json),
encoding='utf-8',
content_settings=ContentSettings(
content_type='application/json'))
log("Uploaded " + blob_name + " to " + storage_account + "/" +
storage_container)
if last_record_datetime > max_record_datetime:
max_record_datetime = last_record_datetime
else:
log("No new data")
# If there is next page, go to next page. Otherwise, break out of the loop.
if "@odata.nextLink" in response_json:
graph_uri = response_json['@odata.nextLink']
log("Next page found " + graph_uri)
else:
break
# Record the last activityDateTime to filter next set of logs
blob_service.set_container_metadata(storage_container,
metadata={
METADATA_LAST_DATETIME:
max_record_datetime,
METADATA_LAST_EXECUTION:
str(datetime.now())
})
log("Recorded new container last_datetime=" + max_record_datetime)
def setUp(self):
super(StorageClientTest, self).setUp()
self.account_name = self.settings.STORAGE_ACCOUNT_NAME
self.account_key = self.settings.STORAGE_ACCOUNT_KEY
self.sas_token = '?sv=2015-04-05&st=2015-04-29T22%3A18%3A26Z&se=2015-04-30T02%3A23%3A26Z&sr=b&sp=rw&sip=168.1.5.60-168.1.5.70&spr=https&sig=Z%2FRHIX5Xcg0Mq2rqI3OlWTjEg2tYkboXr1P9ZUXDtkk%3D'
self.token_credential = TokenCredential('initial_token')
def __init__(self):
# https://docs.microsoft.com/en-us/azure/storage/common/storage-auth-aad-app
token = TokenCredential(auth.get_token(STORAGE_ENDPOINT))
self.blob_service = BlockBlobService(
STORAGE_ACCOUNT, token_credential=token['accessToken'])
def get_storage_token(session):
if session.resource_endpoint != STORAGE_AUTH_ENDPOINT:
session = session.get_session_for_resource(STORAGE_AUTH_ENDPOINT)
return TokenCredential(session.get_bearer_token())
