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# Copyright 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file 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 mock
from datetime import datetime
from tests import BaseSessionTest, ClientHTTPStubber
class TestLex(BaseSessionTest):
def setUp(self):
super(TestLex, self).setUp()
self.region = 'us-west-2'
self.client = self.session.create_client('lex-runtime', self.region)
self.http_stubber = ClientHTTPStubber(self.client)
def test_unsigned_payload(self):
params = {
'botName': 'foo',
'botAlias': 'bar',
'userId': 'baz',
'contentType': 'application/octet-stream',
'inputStream': b''
}
timestamp = datetime(2017, 3, 22, 0, 0)
with mock.patch('botocore.auth.datetime') as _datetime:
_datetime.datetime.utcnow.return_value = timestamp
self.http_stubber.add_response(body=b'{}')
with self.http_stubber:
self.client.post_content(**params)
request = self.http_stubber.requests[0]
# The payload gets added to the string to sign, and then part of the
# signature. The signature will be part of the authorization header.
# Since we don't have direct access to the payload signature,
# we compare the authorization instead.
authorization = request.headers.get('authorization')
expected_authorization = (
b'AWS4-HMAC-SHA256 '
b'Credential=access_key/20170322/us-west-2/lex/aws4_request, '
b'SignedHeaders=content-type;host;x-amz-content-sha256;x-amz-date,'
b' Signature='
b'7f93fde5c36163dce6ee116fcfebab13474ab903782fea04c00bb1dedc3fc4cc'
)
self.assertEqual(authorization, expected_authorization)
content_header = request.headers.get('x-amz-content-sha256')
self.assertEqual(content_header, b'UNSIGNED-PAYLOAD')
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