def invoke_rest_api(api_id, stage, method, invocation_path, data, headers, path=None, context={}):
path = path or invocation_path
relative_path, query_string_params = extract_query_string_params(path=invocation_path)
# run gateway authorizers for this request
authorize_invocation(api_id, headers)
path_map = helpers.get_rest_api_paths(rest_api_id=api_id)
try:
extracted_path, resource = get_resource_for_path(path=relative_path, path_map=path_map)
except Exception:
return make_error_response('Unable to find path %s' % path, 404)
api_key_required = resource.get('resourceMethods', {}).get(method, {}).get('apiKeyRequired')
if not is_api_key_valid(api_key_required, headers, stage):
return make_error_response('Access denied - invalid API key', 403)
integrations = resource.get('resourceMethods', {})
integration = integrations.get(method, {})
if not integration:
integration = integrations.get('ANY', {})
integration = integration.get('methodIntegration')
if not integration:
if method == 'OPTIONS' and 'Origin' in headers:
# default to returning CORS headers if this is an OPTIONS request
return get_cors_response(headers)
return make_error_response('Unable to find integration for path %s' % path, 404)
res_methods = path_map.get(relative_path, {}).get('resourceMethods', {})
meth_integration = res_methods.get(method, {}).get('methodIntegration', {})
int_responses = meth_integration.get('integrationResponses', {})
response_templates = int_responses.get('200', {}).get('responseTemplates', {})
return invoke_rest_api_integration(api_id, stage, integration, method, path, invocation_path, data,
headers, resource_path=extracted_path, context=context,
resource_id=resource.get('id'), response_templates=response_templates)
def invoke_rest_api(invocation_context: ApiInvocationContext):
invocation_path = invocation_context.path_with_query_string
raw_path = invocation_context.path or invocation_path
method = invocation_context.method
headers = invocation_context.headers
# run gateway authorizers for this request
authorize_invocation(invocation_context)
extracted_path, resource = get_target_resource_details(invocation_context)
if not resource:
return make_error_response(
"Unable to find path %s" % invocation_context.path, 404)
# validate request
validator = RequestValidator(invocation_context,
aws_stack.connect_to_service("apigateway"))
if not validator.is_request_valid():
return make_error_response("Invalid request body", 400)
api_key_required = resource.get("resourceMethods",
{}).get(method, {}).get("apiKeyRequired")
if not is_api_key_valid(api_key_required, headers,
invocation_context.stage):
return make_error_response("Access denied - invalid API key", 403)
integrations = resource.get("resourceMethods", {})
integration = integrations.get(method, {})
if not integration:
# HttpMethod: '*'
# ResourcePath: '/*' - produces 'X-AMAZON-APIGATEWAY-ANY-METHOD'
integration = integrations.get("ANY", {}) or integrations.get(
"X-AMAZON-APIGATEWAY-ANY-METHOD", {})
integration = integration.get("methodIntegration")
if not integration:
if method == "OPTIONS" and "Origin" in headers:
# default to returning CORS headers if this is an OPTIONS request
return get_cors_response(headers)
return make_error_response(
"Unable to find integration for: %s %s (%s)" %
(method, invocation_path, raw_path),
404,
)
res_methods = resource.get("resourceMethods", {})
meth_integration = res_methods.get(method, {}).get("methodIntegration", {})
int_responses = meth_integration.get("integrationResponses", {})
response_templates = int_responses.get("200",
{}).get("responseTemplates", {})
# update fields in invocation context, then forward request to next handler
invocation_context.resource = resource
invocation_context.resource_path = extracted_path
invocation_context.response_templates = response_templates
invocation_context.integration = integration
return invoke_rest_api_integration(invocation_context)
def invoke_rest_api(invocation_context: ApiInvocationContext):
invocation_path = invocation_context.path_with_query_string
raw_path = invocation_context.path or invocation_path
method = invocation_context.method
headers = invocation_context.headers
# run gateway authorizers for this request
authorize_invocation(invocation_context)
extracted_path, resource = get_target_resource_details(invocation_context)
if not resource:
return make_error_response(
"Unable to find path %s" % invocation_context.path, 404)
api_key_required = resource.get("resourceMethods",
{}).get(method, {}).get("apiKeyRequired")
if not is_api_key_valid(api_key_required, headers,
invocation_context.stage):
return make_error_response("Access denied - invalid API key", 403)
integrations = resource.get("resourceMethods", {})
integration = integrations.get(method, {})
if not integration:
integration = integrations.get("ANY", {})
integration = integration.get("methodIntegration")
if not integration:
if method == "OPTIONS" and "Origin" in headers:
# default to returning CORS headers if this is an OPTIONS request
return get_cors_response(headers)
return make_error_response(
"Unable to find integration for: %s %s (%s)" %
(method, invocation_path, raw_path),
404,
)
res_methods = resource.get("resourceMethods", {})
meth_integration = res_methods.get(method, {}).get("methodIntegration", {})
int_responses = meth_integration.get("integrationResponses", {})
response_templates = int_responses.get("200",
{}).get("responseTemplates", {})
# update fields in invocation context, then forward request to next handler
invocation_context.resource = resource
invocation_context.resource_path = extracted_path
invocation_context.response_templates = response_templates
invocation_context.integration = integration
result = invoke_rest_api_integration(invocation_context)
return result
def forward_request(self, method, path, data, headers):
if re.match(PATH_REGEX_USER_REQUEST, path):
search_match = re.search(PATH_REGEX_USER_REQUEST, path)
api_id = search_match.group(1)
stage = search_match.group(2)
relative_path_w_query_params = '/%s' % search_match.group(3)
try:
return invoke_rest_api(api_id,
stage,
method,
relative_path_w_query_params,
data,
headers,
path=path)
except AuthorizationError as e:
return make_error_response(
'Not authorized to invoke REST API %s: %s' % (api_id, e),
403)
data = data and json.loads(to_str(data))
if re.match(PATH_REGEX_AUTHORIZERS, path):
return handle_authorizers(method, path, data, headers)
if re.match(PATH_REGEX_RESPONSES, path):
search_match = re.search(PATH_REGEX_RESPONSES, path)
api_id = search_match.group(1)
if method == 'GET':
return get_gateway_responses(api_id)
if method == 'PUT':
response_type = search_match.group(2).lstrip('/')
return put_gateway_response(api_id, response_type, data)
return True
def invoke_rest_api_from_request(method, path, data, headers, context={}):
api_id, stage, relative_path_w_query_params = get_api_id_stage_invocation_path(path, headers)
try:
return invoke_rest_api(api_id, stage, method, relative_path_w_query_params,
data, headers, path=path, context=context)
except AuthorizationError as e:
return make_error_response('Not authorized to invoke REST API %s: %s' % (api_id, e), 403)
def invoke_rest_api_integration(api_id,
stage,
integration,
method,
path,
invocation_path,
data,
headers,
resource_path,
context={},
resource_id=None,
response_templates={}):
response = None
try:
response = invoke_rest_api_integration_backend(
api_id,
stage,
integration,
method,
path,
invocation_path,
data,
headers,
resource_path,
context=context,
resource_id=resource_id,
response_templates=response_templates)
response = apply_response_parameters(response,
integration,
api_id=api_id)
return response
except Exception as e:
LOG.warning(str(e))
return make_error_response(str(e), 400)
def invoke_rest_api_from_request(invocation_context: ApiInvocationContext):
helpers.set_api_id_stage_invocation_path(invocation_context)
try:
return invoke_rest_api(invocation_context)
except AuthorizationError as e:
api_id = invocation_context.api_id
return make_error_response(
"Not authorized to invoke REST API %s: %s" % (api_id, e), 403)
def invoke_rest_api_integration(invocation_context: ApiInvocationContext):
try:
response = invoke_rest_api_integration_backend(invocation_context)
invocation_context.response = response
response = apply_response_parameters(invocation_context)
return response
except Exception as e:
msg = f"Error invoking integration for API Gateway ID '{invocation_context.api_id}': {e}"
LOG.exception(msg)
return make_error_response(msg, 400)
def invoke_rest_api_integration(invocation_context: ApiInvocationContext):
try:
response = invoke_rest_api_integration_backend(invocation_context)
# TODO remove this setter once all the integrations are migrated to the new response
# handling
invocation_context.response = response
response = apply_response_parameters(invocation_context)
return response
except Exception as e:
msg = f"Error invoking integration for API Gateway ID '{invocation_context.api_id}': {e}"
LOG.exception(msg)
return make_error_response(msg, 400)
def invoke_rest_api_integration(
api_id,
stage,
integration,
method,
path,
invocation_path,
data,
headers,
resource_path,
context={},
resource_id=None,
response_templates={},
auth_info={},
):
try:
response = invoke_rest_api_integration_backend(
api_id,
stage,
integration,
method,
path,
invocation_path,
data,
headers,
resource_path,
context=context,
resource_id=resource_id,
response_templates=response_templates,
auth_info=auth_info,
)
response = apply_response_parameters(response,
integration,
api_id=api_id)
return response
except Exception as e:
msg = f"Error invoking integration for API Gateway ID '{api_id}': {e}"
LOG.exception(msg)
return make_error_response(msg, 400)
def invoke_rest_api(api_id,
stage,
method,
invocation_path,
data,
headers,
path=None):
path = path or invocation_path
relative_path, query_string_params = extract_query_string_params(
path=invocation_path)
# run gateway authorizers for this request
authorize_invocation(api_id, headers)
path_map = helpers.get_rest_api_paths(rest_api_id=api_id)
try:
extracted_path, resource = get_resource_for_path(path=relative_path,
path_map=path_map)
except Exception:
return make_error_response('Unable to find path %s' % path, 404)
api_key_required = resource.get('resourceMethods',
{}).get(method, {}).get('apiKeyRequired')
if not is_api_key_valid(api_key_required, headers, stage):
return make_error_response('Access denied - invalid API key', 403)
integrations = resource.get('resourceMethods', {})
integration = integrations.get(method, {})
if not integration:
integration = integrations.get('ANY', {})
integration = integration.get('methodIntegration')
if not integration:
if method == 'OPTIONS' and 'Origin' in headers:
# default to returning CORS headers if this is an OPTIONS request
return get_cors_response(headers)
return make_error_response(
'Unable to find integration for path %s' % path, 404)
uri = integration.get('uri') or ''
integration_type = integration['type'].upper()
if uri.startswith('arn:aws:apigateway:') and ':lambda:path' in uri:
if integration_type in ['AWS', 'AWS_PROXY']:
func_arn = uri.split(':lambda:path')[1].split(
'functions/')[1].split('/invocations')[0]
data_str = json.dumps(data) if isinstance(data,
(dict,
list)) else to_str(data)
account_id = uri.split(':lambda:path')[1].split(
':function:')[0].split(':')[-1]
source_ip = headers['X-Forwarded-For'].split(',')[-2]
try:
path_params = extract_path_params(
path=relative_path, extracted_path=extracted_path)
except Exception:
path_params = {}
# apply custom request template
data_str = apply_template(integration,
'request',
data_str,
path_params=path_params,
query_params=query_string_params,
headers=headers)
# Sample request context:
# https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-create-api-as-simple-proxy-for-lambda.html#api-gateway-create-api-as-simple-proxy-for-lambda-test
request_context = {
# adding stage to the request context path.
# https://github.com/localstack/localstack/issues/2210
'path': '/' + stage + relative_path,
'accountId': account_id,
'resourceId': resource.get('id'),
'stage': stage,
'identity': {
'accountId': account_id,
'sourceIp': source_ip,
'userAgent': headers['User-Agent'],
},
'httpMethod': method,
'protocol': 'HTTP/1.1',
'requestTime': datetime.datetime.utcnow(),
'requestTimeEpoch': int(time.time() * 1000),
}
result = lambda_api.process_apigateway_invocation(
func_arn,
relative_path,
data_str,
stage,
api_id,
headers,
path_params=path_params,
query_string_params=query_string_params,
method=method,
resource_path=path,
request_context=request_context)
if isinstance(result, FlaskResponse):
response = flask_to_requests_response(result)
elif isinstance(result, Response):
response = result
else:
response = LambdaResponse()
parsed_result = result if isinstance(
result, dict) else json.loads(str(result or '{}'))
parsed_result = common.json_safe(parsed_result)
parsed_result = {} if parsed_result is None else parsed_result
response.status_code = int(parsed_result.get(
'statusCode', 200))
parsed_headers = parsed_result.get('headers', {})
if parsed_headers is not None:
response.headers.update(parsed_headers)
try:
if isinstance(parsed_result['body'], dict):
response._content = json.dumps(parsed_result['body'])
else:
response._content = to_bytes(parsed_result['body'])
except Exception:
response._content = '{}'
update_content_length(response)
response.multi_value_headers = parsed_result.get(
'multiValueHeaders') or {}
# apply custom response template
response._content = apply_template(integration, 'response',
response._content)
response.headers['Content-Length'] = str(
len(response.content or ''))
return response
msg = 'API Gateway AWS integration action URI "%s", method "%s" not yet implemented' % (
uri, method)
LOGGER.warning(msg)
return make_error_response(msg, 404)
elif integration_type == 'AWS':
if 'kinesis:action/' in uri:
if uri.endswith('kinesis:action/PutRecords'):
target = kinesis_listener.ACTION_PUT_RECORDS
if uri.endswith('kinesis:action/ListStreams'):
target = kinesis_listener.ACTION_LIST_STREAMS
template = integration['requestTemplates'][APPLICATION_JSON]
new_request = aws_stack.render_velocity_template(template, data)
# forward records to target kinesis stream
headers = aws_stack.mock_aws_request_headers(service='kinesis')
headers['X-Amz-Target'] = target
result = common.make_http_request(url=TEST_KINESIS_URL,
method='POST',
data=new_request,
headers=headers)
# TODO apply response template..?
return result
if method == 'POST':
if uri.startswith('arn:aws:apigateway:') and ':sqs:path' in uri:
template = integration['requestTemplates'][APPLICATION_JSON]
account_id, queue = uri.split('/')[-2:]
region_name = uri.split(':')[3]
new_request = '%s&QueueName=%s' % (
aws_stack.render_velocity_template(template, data), queue)
headers = aws_stack.mock_aws_request_headers(
service='sqs', region_name=region_name)
url = urljoin(TEST_SQS_URL,
'%s/%s' % (TEST_AWS_ACCOUNT_ID, queue))
result = common.make_http_request(url,
method='POST',
headers=headers,
data=new_request)
return result
msg = 'API Gateway AWS integration action URI "%s", method "%s" not yet implemented' % (
uri, method)
LOGGER.warning(msg)
return make_error_response(msg, 404)
elif integration_type == 'AWS_PROXY':
if uri.startswith('arn:aws:apigateway:') and ':dynamodb:action' in uri:
# arn:aws:apigateway:us-east-1:dynamodb:action/PutItem&Table=MusicCollection
table_name = uri.split(':dynamodb:action')[1].split('&Table=')[1]
action = uri.split(':dynamodb:action')[1].split('&Table=')[0]
if 'PutItem' in action and method == 'PUT':
response_template = path_map.get(relative_path, {}).get('resourceMethods', {})\
.get(method, {}).get('methodIntegration', {}).\
get('integrationResponses', {}).get('200', {}).get('responseTemplates', {})\
.get('application/json', None)
if response_template is None:
msg = 'Invalid response template defined in integration response.'
return make_error_response(msg, 404)
response_template = json.loads(response_template)
if response_template['TableName'] != table_name:
msg = 'Invalid table name specified in integration response template.'
return make_error_response(msg, 404)
dynamo_client = aws_stack.connect_to_resource('dynamodb')
table = dynamo_client.Table(table_name)
event_data = {}
data_dict = json.loads(data)
for key, _ in response_template['Item'].items():
event_data[key] = data_dict[key]
table.put_item(Item=event_data)
response = requests_response(
event_data, headers=aws_stack.mock_aws_request_headers())
return response
else:
msg = 'API Gateway action uri "%s" not yet implemented' % uri
LOGGER.warning(msg)
return make_error_response(msg, 404)
elif integration_type in ['HTTP_PROXY', 'HTTP']:
function = getattr(requests, method.lower())
# apply custom request template
data = apply_template(integration, 'request', data)
if isinstance(data, dict):
data = json.dumps(data)
result = function(integration['uri'], data=data, headers=headers)
# apply custom response template
data = apply_template(integration, 'response', data)
return result
elif integration_type == 'MOCK':
# TODO: add logic for MOCK responses
pass
if method == 'OPTIONS':
# fall back to returning CORS headers if this is an OPTIONS request
return get_cors_response(headers)
msg = (
'API Gateway integration type "%s", method "%s", URI "%s" not yet implemented'
% (integration['type'], method, integration.get('uri')))
LOGGER.warning(msg)
return make_error_response(msg, 404)
def invoke_rest_api_integration(api_id,
stage,
integration,
method,
path,
invocation_path,
data,
headers,
resource_path,
context={},
resource_id=None,
response_templates={}):
relative_path, query_string_params = extract_query_string_params(
path=invocation_path)
integration_type = integration.get('type') or integration.get(
'integrationType')
uri = integration.get('uri') or integration.get('integrationUri')
if (uri.startswith('arn:aws:apigateway:')
and ':lambda:path' in uri) or uri.startswith('arn:aws:lambda'):
if integration_type in ['AWS', 'AWS_PROXY']:
func_arn = uri
if ':lambda:path' in uri:
func_arn = uri.split(':lambda:path')[1].split(
'functions/')[1].split('/invocations')[0]
data_str = json.dumps(data) if isinstance(data,
(dict,
list)) else to_str(data)
try:
path_params = extract_path_params(path=relative_path,
extracted_path=resource_path)
except Exception:
path_params = {}
# apply custom request template
data_str = apply_template(integration,
'request',
data_str,
path_params=path_params,
query_params=query_string_params,
headers=headers)
# Sample request context:
# https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-create-api-as-simple-proxy-for-lambda.html#api-gateway-create-api-as-simple-proxy-for-lambda-test
request_context = get_lambda_event_request_context(
method,
path,
data,
headers,
integration_uri=uri,
resource_id=resource_id)
stage_variables = get_stage_variables(api_id, stage)
result = lambda_api.process_apigateway_invocation(
func_arn,
relative_path,
data_str,
stage,
api_id,
headers,
path_params=path_params,
query_string_params=query_string_params,
method=method,
resource_path=path,
request_context=request_context,
event_context=context,
stage_variables=stage_variables)
if isinstance(result, FlaskResponse):
response = flask_to_requests_response(result)
elif isinstance(result, Response):
response = result
else:
response = LambdaResponse()
parsed_result = result if isinstance(
result, dict) else json.loads(str(result or '{}'))
parsed_result = common.json_safe(parsed_result)
parsed_result = {} if parsed_result is None else parsed_result
response.status_code = int(parsed_result.get(
'statusCode', 200))
parsed_headers = parsed_result.get('headers', {})
if parsed_headers is not None:
response.headers.update(parsed_headers)
try:
if isinstance(parsed_result['body'], dict):
response._content = json.dumps(parsed_result['body'])
else:
response._content = to_bytes(parsed_result['body'])
except Exception:
response._content = '{}'
update_content_length(response)
response.multi_value_headers = parsed_result.get(
'multiValueHeaders') or {}
# apply custom response template
response._content = apply_template(integration, 'response',
response._content)
response.headers['Content-Length'] = str(
len(response.content or ''))
return response
msg = 'API Gateway AWS integration action URI "%s", method "%s" not yet implemented' % (
uri, method)
LOGGER.warning(msg)
return make_error_response(msg, 404)
elif integration_type == 'AWS':
if 'kinesis:action/' in uri:
if uri.endswith('kinesis:action/PutRecords'):
target = kinesis_listener.ACTION_PUT_RECORDS
if uri.endswith('kinesis:action/ListStreams'):
target = kinesis_listener.ACTION_LIST_STREAMS
template = integration['requestTemplates'][APPLICATION_JSON]
new_request = aws_stack.render_velocity_template(template, data)
# forward records to target kinesis stream
headers = aws_stack.mock_aws_request_headers(service='kinesis')
headers['X-Amz-Target'] = target
result = common.make_http_request(url=TEST_KINESIS_URL,
method='POST',
data=new_request,
headers=headers)
# TODO apply response template..?
return result
elif 'states:action/' in uri:
if uri.endswith('states:action/StartExecution'):
action = 'StartExecution'
decoded_data = data.decode()
if 'stateMachineArn' in decoded_data and 'input' in decoded_data:
payload = json.loads(decoded_data)
elif APPLICATION_JSON in integration.get('requestTemplates', {}):
template = integration['requestTemplates'][APPLICATION_JSON]
payload = aws_stack.render_velocity_template(template,
data,
as_json=True)
client = aws_stack.connect_to_service('stepfunctions')
kwargs = {'name': payload['name']} if 'name' in payload else {}
result = client.start_execution(
stateMachineArn=payload['stateMachineArn'],
input=payload['input'],
**kwargs)
response = requests_response(
content={
'executionArn': result['executionArn'],
'startDate': str(result['startDate'])
},
headers=aws_stack.mock_aws_request_headers())
return response
if method == 'POST':
if uri.startswith('arn:aws:apigateway:') and ':sqs:path' in uri:
template = integration['requestTemplates'][APPLICATION_JSON]
account_id, queue = uri.split('/')[-2:]
region_name = uri.split(':')[3]
new_request = '%s&QueueName=%s' % (
aws_stack.render_velocity_template(template, data), queue)
headers = aws_stack.mock_aws_request_headers(
service='sqs', region_name=region_name)
url = urljoin(TEST_SQS_URL,
'%s/%s' % (TEST_AWS_ACCOUNT_ID, queue))
result = common.make_http_request(url,
method='POST',
headers=headers,
data=new_request)
return result
msg = 'API Gateway AWS integration action URI "%s", method "%s" not yet implemented' % (
uri, method)
LOGGER.warning(msg)
return make_error_response(msg, 404)
elif integration_type == 'AWS_PROXY':
if uri.startswith('arn:aws:apigateway:') and ':dynamodb:action' in uri:
# arn:aws:apigateway:us-east-1:dynamodb:action/PutItem&Table=MusicCollection
table_name = uri.split(':dynamodb:action')[1].split('&Table=')[1]
action = uri.split(':dynamodb:action')[1].split('&Table=')[0]
if 'PutItem' in action and method == 'PUT':
response_template = response_templates.get(
'application/json', None)
if response_template is None:
msg = 'Invalid response template defined in integration response.'
return make_error_response(msg, 404)
response_template = json.loads(response_template)
if response_template['TableName'] != table_name:
msg = 'Invalid table name specified in integration response template.'
return make_error_response(msg, 404)
dynamo_client = aws_stack.connect_to_resource('dynamodb')
table = dynamo_client.Table(table_name)
event_data = {}
data_dict = json.loads(data)
for key, _ in response_template['Item'].items():
event_data[key] = data_dict[key]
table.put_item(Item=event_data)
response = requests_response(
event_data, headers=aws_stack.mock_aws_request_headers())
return response
else:
msg = 'API Gateway action uri "%s", integration type %s not yet implemented' % (
uri, integration_type)
LOGGER.warning(msg)
return make_error_response(msg, 404)
elif integration_type in ['HTTP_PROXY', 'HTTP']:
function = getattr(requests, method.lower())
# apply custom request template
data = apply_template(integration, 'request', data)
if isinstance(data, dict):
data = json.dumps(data)
result = function(uri, data=data, headers=headers)
# apply custom response template
data = apply_template(integration, 'response', data)
return result
elif integration_type == 'MOCK':
# TODO: add logic for MOCK responses
pass
if method == 'OPTIONS':
# fall back to returning CORS headers if this is an OPTIONS request
return get_cors_response(headers)
msg = (
'API Gateway integration type "%s", method "%s", URI "%s" not yet implemented'
% (integration_type, method, uri))
LOGGER.warning(msg)
return make_error_response(msg, 404)
def invoke_rest_api_integration_backend(
invocation_context: ApiInvocationContext):
# define local aliases from invocation context
invocation_path = invocation_context.path_with_query_string
method = invocation_context.method
data = invocation_context.data
headers = invocation_context.headers
api_id = invocation_context.api_id
stage = invocation_context.stage
resource_path = invocation_context.resource_path
integration = invocation_context.integration
integration_response = integration.get("integrationResponses", {})
response_templates = integration_response.get("200", {}).get(
"responseTemplates", {})
# extract integration type and path parameters
relative_path, query_string_params = extract_query_string_params(
path=invocation_path)
integration_type_orig = integration.get("type") or integration.get(
"integrationType") or ""
integration_type = integration_type_orig.upper()
uri = integration.get("uri") or integration.get("integrationUri") or ""
# XXX we need replace the internal Authorization header with an Authorization header set from
# the customer, even if it's empty that's what's expected in the integration.
custom_auth_header = invocation_context.headers.pop(
HEADER_LOCALSTACK_AUTHORIZATION, "")
invocation_context.headers["Authorization"] = custom_auth_header
try:
path_params = extract_path_params(path=relative_path,
extracted_path=resource_path)
invocation_context.path_params = path_params
except Exception:
path_params = {}
if (uri.startswith("arn:aws:apigateway:")
and ":lambda:path" in uri) or uri.startswith("arn:aws:lambda"):
if integration_type == "AWS_PROXY":
return LambdaProxyIntegration().invoke(invocation_context)
elif integration_type == "AWS":
func_arn = uri
if ":lambda:path" in uri:
func_arn = (uri.split(":lambda:path")[1].split("functions/")
[1].split("/invocations")[0])
headers = helpers.create_invocation_headers(invocation_context)
invocation_context.context = helpers.get_event_request_context(
invocation_context)
invocation_context.stage_variables = helpers.get_stage_variables(
invocation_context)
if invocation_context.authorizer_type:
invocation_context.context[
"authorizer"] = invocation_context.auth_context
request_templates = RequestTemplates()
payload = request_templates.render(invocation_context)
# TODO: change this signature to InvocationContext as well!
result = lambda_api.process_apigateway_invocation(
func_arn,
relative_path,
payload,
stage,
api_id,
headers,
is_base64_encoded=invocation_context.is_data_base64_encoded,
path_params=path_params,
query_string_params=query_string_params,
method=method,
resource_path=resource_path,
request_context=invocation_context.context,
stage_variables=invocation_context.stage_variables,
)
if isinstance(result, FlaskResponse):
response = flask_to_requests_response(result)
elif isinstance(result, Response):
response = result
else:
response = LambdaResponse()
parsed_result = (result if isinstance(result, dict) else
json.loads(str(result or "{}")))
parsed_result = common.json_safe(parsed_result)
parsed_result = {} if parsed_result is None else parsed_result
response.status_code = 200
response._content = parsed_result
update_content_length(response)
# apply custom response template
invocation_context.response = response
response_templates = ResponseTemplates()
response_templates.render(invocation_context)
invocation_context.response.headers["Content-Length"] = str(
len(response.content or ""))
return invocation_context.response
raise Exception(
f'API Gateway integration type "{integration_type}", action "{uri}", method "{method}"'
)
elif integration_type == "AWS":
if "kinesis:action/" in uri:
if uri.endswith("kinesis:action/PutRecord"):
target = kinesis_listener.ACTION_PUT_RECORD
elif uri.endswith("kinesis:action/PutRecords"):
target = kinesis_listener.ACTION_PUT_RECORDS
elif uri.endswith("kinesis:action/ListStreams"):
target = kinesis_listener.ACTION_LIST_STREAMS
else:
LOG.info(
f"Unexpected API Gateway integration URI '{uri}' for integration type {integration_type}",
)
target = ""
try:
invocation_context.context = helpers.get_event_request_context(
invocation_context)
invocation_context.stage_variables = helpers.get_stage_variables(
invocation_context)
request_templates = RequestTemplates()
payload = request_templates.render(invocation_context)
except Exception as e:
LOG.warning("Unable to convert API Gateway payload to str", e)
raise
# forward records to target kinesis stream
headers = aws_stack.mock_aws_request_headers(
service="kinesis", region_name=invocation_context.region_name)
headers["X-Amz-Target"] = target
result = common.make_http_request(
url=config.service_url("kineses"),
data=payload,
headers=headers,
method="POST")
# apply response template
invocation_context.response = result
response_templates = ResponseTemplates()
response_templates.render(invocation_context)
return invocation_context.response
elif "states:action/" in uri:
action = uri.split("/")[-1]
if APPLICATION_JSON in integration.get("requestTemplates", {}):
request_templates = RequestTemplates()
payload = request_templates.render(invocation_context)
payload = json.loads(payload)
else:
# XXX decoding in py3 sounds wrong, this actually might break
payload = json.loads(data.decode("utf-8"))
client = aws_stack.connect_to_service("stepfunctions")
if isinstance(payload.get("input"), dict):
payload["input"] = json.dumps(payload["input"])
# Hot fix since step functions local package responses: Unsupported Operation: 'StartSyncExecution'
method_name = (camel_to_snake_case(action)
if action != "StartSyncExecution" else
"start_execution")
try:
method = getattr(client, method_name)
except AttributeError:
msg = "Invalid step function action: %s" % method_name
LOG.error(msg)
return make_error_response(msg, 400)
result = method(**payload)
result = json_safe(
{k: result[k]
for k in result if k not in "ResponseMetadata"})
response = requests_response(
content=result,
headers=aws_stack.mock_aws_request_headers(),
)
if action == "StartSyncExecution":
# poll for the execution result and return it
result = await_sfn_execution_result(result["executionArn"])
result_status = result.get("status")
if result_status != "SUCCEEDED":
return make_error_response(
"StepFunctions execution %s failed with status '%s'" %
(result["executionArn"], result_status),
500,
)
result = json_safe(result)
response = requests_response(content=result)
# apply response templates
invocation_context.response = response
response_templates = ResponseTemplates()
response_templates.render(invocation_context)
# response = apply_request_response_templates(
# response, response_templates, content_type=APPLICATION_JSON
# )
return response
# https://docs.aws.amazon.com/apigateway/api-reference/resource/integration/
elif ("s3:path/" in uri or "s3:action/" in uri) and method == "GET":
s3 = aws_stack.connect_to_service("s3")
uri = apply_request_parameters(
uri,
integration=integration,
path_params=path_params,
query_params=query_string_params,
)
uri_match = re.match(TARGET_REGEX_PATH_S3_URI, uri) or re.match(
TARGET_REGEX_ACTION_S3_URI, uri)
if uri_match:
bucket, object_key = uri_match.group("bucket", "object")
LOG.debug("Getting request for bucket %s object %s", bucket,
object_key)
try:
object = s3.get_object(Bucket=bucket, Key=object_key)
except s3.exceptions.NoSuchKey:
msg = "Object %s not found" % object_key
LOG.debug(msg)
return make_error_response(msg, 404)
headers = aws_stack.mock_aws_request_headers(service="s3")
if object.get("ContentType"):
headers["Content-Type"] = object["ContentType"]
# stream used so large files do not fill memory
response = request_response_stream(stream=object["Body"],
headers=headers)
return response
else:
msg = "Request URI does not match s3 specifications"
LOG.warning(msg)
return make_error_response(msg, 400)
if method == "POST":
if uri.startswith("arn:aws:apigateway:") and ":sqs:path" in uri:
template = integration["requestTemplates"][APPLICATION_JSON]
account_id, queue = uri.split("/")[-2:]
region_name = uri.split(":")[3]
if "GetQueueUrl" in template or "CreateQueue" in template:
request_templates = RequestTemplates()
payload = request_templates.render(invocation_context)
new_request = f"{payload}&QueueName={queue}"
else:
request_templates = RequestTemplates()
payload = request_templates.render(invocation_context)
queue_url = f"{config.get_edge_url()}/{account_id}/{queue}"
new_request = f"{payload}&QueueUrl={queue_url}"
headers = aws_stack.mock_aws_request_headers(
service="sqs", region_name=region_name)
url = urljoin(config.service_url("sqs"),
f"{TEST_AWS_ACCOUNT_ID}/{queue}")
result = common.make_http_request(url,
method="POST",
headers=headers,
data=new_request)
return result
elif uri.startswith("arn:aws:apigateway:") and ":sns:path" in uri:
invocation_context.context = helpers.get_event_request_context(
invocation_context)
invocation_context.stage_variables = helpers.get_stage_variables(
invocation_context)
integration_response = SnsIntegration().invoke(
invocation_context)
return apply_request_response_templates(
integration_response,
response_templates,
content_type=APPLICATION_JSON)
raise Exception(
'API Gateway AWS integration action URI "%s", method "%s" not yet implemented'
% (uri, method))
elif integration_type == "AWS_PROXY":
if uri.startswith("arn:aws:apigateway:") and ":dynamodb:action" in uri:
# arn:aws:apigateway:us-east-1:dynamodb:action/PutItem&Table=MusicCollection
table_name = uri.split(":dynamodb:action")[1].split("&Table=")[1]
action = uri.split(":dynamodb:action")[1].split("&Table=")[0]
if "PutItem" in action and method == "PUT":
response_template = response_templates.get("application/json")
if response_template is None:
msg = "Invalid response template defined in integration response."
LOG.info("%s Existing: %s", msg, response_templates)
return make_error_response(msg, 404)
response_template = json.loads(response_template)
if response_template["TableName"] != table_name:
msg = "Invalid table name specified in integration response template."
return make_error_response(msg, 404)
dynamo_client = aws_stack.connect_to_resource("dynamodb")
table = dynamo_client.Table(table_name)
event_data = {}
data_dict = json.loads(data)
for key, _ in response_template["Item"].items():
event_data[key] = data_dict[key]
table.put_item(Item=event_data)
response = requests_response(event_data)
return response
else:
raise Exception(
'API Gateway action uri "%s", integration type %s not yet implemented'
% (uri, integration_type))
elif integration_type in ["HTTP_PROXY", "HTTP"]:
if ":servicediscovery:" in uri:
# check if this is a servicediscovery integration URI
client = aws_stack.connect_to_service("servicediscovery")
service_id = uri.split("/")[-1]
instances = client.list_instances(
ServiceId=service_id)["Instances"]
instance = (instances or [None])[0]
if instance and instance.get("Id"):
uri = "http://%s/%s" % (instance["Id"],
invocation_path.lstrip("/"))
# apply custom request template
invocation_context.context = helpers.get_event_request_context(
invocation_context)
invocation_context.stage_variables = helpers.get_stage_variables(
invocation_context)
request_templates = RequestTemplates()
payload = request_templates.render(invocation_context)
if isinstance(payload, dict):
payload = json.dumps(payload)
uri = apply_request_parameters(
uri,
integration=integration,
path_params=path_params,
query_params=query_string_params,
)
result = requests.request(method=method,
url=uri,
data=payload,
headers=headers)
# apply custom response template
invocation_context.response = result
response_templates = ResponseTemplates()
response_templates.render(invocation_context)
return invocation_context.response
elif integration_type == "MOCK":
mock_integration = MockIntegration()
return mock_integration.invoke(invocation_context)
if method == "OPTIONS":
# fall back to returning CORS headers if this is an OPTIONS request
return get_cors_response(headers)
raise Exception(
'API Gateway integration type "%s", method "%s", URI "%s" not yet implemented'
% (integration_type, method, uri))
def invoke_rest_api_integration_backend(
invocation_context: ApiInvocationContext, integration: Dict):
# define local aliases from invocation context
invocation_path = invocation_context.path_with_query_string
method = invocation_context.method
path = invocation_context.path
data = invocation_context.data
headers = invocation_context.headers
api_id = invocation_context.api_id
stage = invocation_context.stage
resource_path = invocation_context.resource_path
response_templates = invocation_context.response_templates
# extract integration type and path parameters
relative_path, query_string_params = extract_query_string_params(
path=invocation_path)
integration_type_orig = integration.get("type") or integration.get(
"integrationType") or ""
integration_type = integration_type_orig.upper()
uri = integration.get("uri") or integration.get("integrationUri") or ""
try:
path_params = extract_path_params(path=relative_path,
extracted_path=resource_path)
except Exception:
path_params = {}
if (uri.startswith("arn:aws:apigateway:")
and ":lambda:path" in uri) or uri.startswith("arn:aws:lambda"):
if integration_type in ["AWS", "AWS_PROXY"]:
func_arn = uri
if ":lambda:path" in uri:
func_arn = (uri.split(":lambda:path")[1].split("functions/")
[1].split("/invocations")[0])
# apply custom request template
data_str = data
is_base64_encoded = False
try:
data_str = json.dumps(data) if isinstance(
data, (dict, list)) else to_str(data)
data_str = apply_template(
integration,
"request",
data_str,
path_params=path_params,
query_params=query_string_params,
headers=headers,
)
except UnicodeDecodeError:
data_str = base64.b64encode(data_str)
is_base64_encoded = True
except Exception as e:
LOG.warning(
"Unable to convert API Gateway payload to str: %s" % (e))
pass
# Sample request context:
# https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-create-api-as-simple-proxy-for-lambda.html#api-gateway-create-api-as-simple-proxy-for-lambda-test
request_context = get_lambda_event_request_context(
invocation_context)
stage_variables = (get_stage_variables(api_id, stage)
if not is_test_invoke_method(method, path) else
None)
# TODO: change this signature to InvocationContext as well!
result = lambda_api.process_apigateway_invocation(
func_arn,
relative_path,
data_str,
stage,
api_id,
headers,
is_base64_encoded=is_base64_encoded,
path_params=path_params,
query_string_params=query_string_params,
method=method,
resource_path=resource_path,
request_context=request_context,
event_context=invocation_context.context,
stage_variables=stage_variables,
)
if isinstance(result, FlaskResponse):
response = flask_to_requests_response(result)
elif isinstance(result, Response):
response = result
else:
response = LambdaResponse()
parsed_result = (result if isinstance(result, dict) else
json.loads(str(result or "{}")))
parsed_result = common.json_safe(parsed_result)
parsed_result = {} if parsed_result is None else parsed_result
response.status_code = int(parsed_result.get(
"statusCode", 200))
parsed_headers = parsed_result.get("headers", {})
if parsed_headers is not None:
response.headers.update(parsed_headers)
try:
result_body = parsed_result.get("body")
if isinstance(result_body, dict):
response._content = json.dumps(result_body)
else:
body_bytes = to_bytes(to_str(result_body or ""))
if parsed_result.get("isBase64Encoded", False):
body_bytes = base64.b64decode(body_bytes)
response._content = body_bytes
except Exception as e:
LOG.warning("Couldn't set Lambda response content: %s" % e)
response._content = "{}"
update_content_length(response)
response.multi_value_headers = parsed_result.get(
"multiValueHeaders") or {}
# apply custom response template
response._content = apply_template(integration, "response",
response._content)
response.headers["Content-Length"] = str(
len(response.content or ""))
return response
raise Exception(
'API Gateway integration type "%s", action "%s", method "%s" invalid or not yet implemented'
% (integration_type, uri, method))
elif integration_type == "AWS":
if "kinesis:action/" in uri:
if uri.endswith("kinesis:action/PutRecord"):
target = kinesis_listener.ACTION_PUT_RECORD
elif uri.endswith("kinesis:action/PutRecords"):
target = kinesis_listener.ACTION_PUT_RECORDS
elif uri.endswith("kinesis:action/ListStreams"):
target = kinesis_listener.ACTION_LIST_STREAMS
else:
LOG.info(
"Unexpected API Gateway integration URI '%s' for integration type %s",
uri,
integration_type,
)
target = ""
# apply request templates
new_data = apply_request_response_templates(
data,
integration.get("requestTemplates"),
content_type=APPLICATION_JSON)
# forward records to target kinesis stream
headers = aws_stack.mock_aws_request_headers(service="kinesis")
headers["X-Amz-Target"] = target
result = common.make_http_request(url=config.TEST_KINESIS_URL,
method="POST",
data=new_data,
headers=headers)
# apply response template
result = apply_request_response_templates(
result, response_templates, content_type=APPLICATION_JSON)
return result
elif "states:action/" in uri:
action = uri.split("/")[-1]
payload = {}
if APPLICATION_JSON in integration.get("requestTemplates", {}):
payload = apply_request_response_templates(
data,
integration.get("requestTemplates"),
content_type=APPLICATION_JSON,
as_json=True,
)
else:
payload = json.loads(data.decode("utf-8"))
client = aws_stack.connect_to_service("stepfunctions")
# Hot fix since step functions local package responses: Unsupported Operation: 'StartSyncExecution'
method_name = (camel_to_snake_case(action)
if action != "StartSyncExecution" else
"start_execution")
try:
method = getattr(client, method_name)
except AttributeError:
msg = "Invalid step function action: %s" % method_name
LOG.error(msg)
return make_error_response(msg, 400)
result = method(**payload, )
result = json_safe(
{k: result[k]
for k in result if k not in "ResponseMetadata"})
response = requests_response(
content=result,
headers=aws_stack.mock_aws_request_headers(),
)
if action == "StartSyncExecution":
# poll for the execution result and return it
result = await_sfn_execution_result(result["executionArn"])
result_status = result.get("status")
if result_status != "SUCCEEDED":
return make_error_response(
"StepFunctions execution %s failed with status '%s'" %
(result["executionArn"], result_status),
500,
)
result = json_safe(result)
response = requests_response(content=result)
# apply response templates
response = apply_request_response_templates(
response, response_templates, content_type=APPLICATION_JSON)
return response
elif "s3:path/" in uri and method == "GET":
s3 = aws_stack.connect_to_service("s3")
uri_match = re.match(TARGET_REGEX_S3_URI, uri)
if uri_match:
bucket, object_key = uri_match.group("bucket", "object")
LOG.debug("Getting request for bucket %s object %s", bucket,
object_key)
try:
object = s3.get_object(Bucket=bucket, Key=object_key)
except s3.exceptions.NoSuchKey:
msg = "Object %s not found" % object_key
LOG.debug(msg)
return make_error_response(msg, 404)
headers = aws_stack.mock_aws_request_headers(service="s3")
if object.get("ContentType"):
headers["Content-Type"] = object["ContentType"]
# stream used so large files do not fill memory
response = request_response_stream(stream=object["Body"],
headers=headers)
return response
else:
msg = "Request URI does not match s3 specifications"
LOG.warning(msg)
return make_error_response(msg, 400)
if method == "POST":
if uri.startswith("arn:aws:apigateway:") and ":sqs:path" in uri:
template = integration["requestTemplates"][APPLICATION_JSON]
account_id, queue = uri.split("/")[-2:]
region_name = uri.split(":")[3]
new_request = "%s&QueueName=%s" % (
aws_stack.render_velocity_template(template, data),
queue,
)
headers = aws_stack.mock_aws_request_headers(
service="sqs", region_name=region_name)
url = urljoin(config.TEST_SQS_URL,
"%s/%s" % (TEST_AWS_ACCOUNT_ID, queue))
result = common.make_http_request(url,
method="POST",
headers=headers,
data=new_request)
return result
raise Exception(
'API Gateway AWS integration action URI "%s", method "%s" not yet implemented'
% (uri, method))
elif integration_type == "AWS_PROXY":
if uri.startswith("arn:aws:apigateway:") and ":dynamodb:action" in uri:
# arn:aws:apigateway:us-east-1:dynamodb:action/PutItem&Table=MusicCollection
table_name = uri.split(":dynamodb:action")[1].split("&Table=")[1]
action = uri.split(":dynamodb:action")[1].split("&Table=")[0]
if "PutItem" in action and method == "PUT":
response_template = response_templates.get("application/json")
if response_template is None:
msg = "Invalid response template defined in integration response."
LOG.info("%s Existing: %s" % (msg, response_templates))
return make_error_response(msg, 404)
response_template = json.loads(response_template)
if response_template["TableName"] != table_name:
msg = "Invalid table name specified in integration response template."
return make_error_response(msg, 404)
dynamo_client = aws_stack.connect_to_resource("dynamodb")
table = dynamo_client.Table(table_name)
event_data = {}
data_dict = json.loads(data)
for key, _ in response_template["Item"].items():
event_data[key] = data_dict[key]
table.put_item(Item=event_data)
response = requests_response(event_data)
return response
else:
raise Exception(
'API Gateway action uri "%s", integration type %s not yet implemented'
% (uri, integration_type))
elif integration_type in ["HTTP_PROXY", "HTTP"]:
if ":servicediscovery:" in uri:
# check if this is a servicediscovery integration URI
client = aws_stack.connect_to_service("servicediscovery")
service_id = uri.split("/")[-1]
instances = client.list_instances(
ServiceId=service_id)["Instances"]
instance = (instances or [None])[0]
if instance and instance.get("Id"):
uri = "http://%s/%s" % (instance["Id"],
invocation_path.lstrip("/"))
# apply custom request template
data = apply_template(integration, "request", data)
if isinstance(data, dict):
data = json.dumps(data)
uri = apply_request_parameter(uri,
integration=integration,
path_params=path_params)
result = requests.request(method=method,
url=uri,
data=data,
headers=headers)
# apply custom response template
result = apply_template(integration, "response", result)
return result
elif integration_type == "MOCK":
# return empty response - details filled in via responseParameters above...
return requests_response({})
if method == "OPTIONS":
# fall back to returning CORS headers if this is an OPTIONS request
return get_cors_response(headers)
raise Exception(
'API Gateway integration type "%s", method "%s", URI "%s" not yet implemented'
% (integration_type, method, uri))
def invoke_rest_api(api_id, stage, method, invocation_path, data, headers, path=None):
path = path or invocation_path
relative_path, query_string_params = extract_query_string_params(path=invocation_path)
# run gateway authorizers for this request
authorize_invocation(api_id, headers)
path_map = helpers.get_rest_api_paths(rest_api_id=api_id)
try:
extracted_path, resource = get_resource_for_path(path=relative_path, path_map=path_map)
except Exception:
return make_error_response('Unable to find path %s' % path, 404)
integrations = resource.get('resourceMethods', {})
integration = integrations.get(method, {})
if not integration:
integration = integrations.get('ANY', {})
integration = integration.get('methodIntegration')
if not integration:
if method == 'OPTIONS' and 'Origin' in headers:
# default to returning CORS headers if this is an OPTIONS request
return get_cors_response(headers)
return make_error_response('Unable to find integration for path %s' % path, 404)
uri = integration.get('uri')
if integration['type'] == 'AWS':
if 'kinesis:action/' in uri:
if uri.endswith('kinesis:action/PutRecords'):
target = kinesis_listener.ACTION_PUT_RECORDS
if uri.endswith('kinesis:action/ListStreams'):
target = kinesis_listener.ACTION_LIST_STREAMS
template = integration['requestTemplates'][APPLICATION_JSON]
new_request = aws_stack.render_velocity_template(template, data)
# forward records to target kinesis stream
headers = aws_stack.mock_aws_request_headers(service='kinesis')
headers['X-Amz-Target'] = target
result = common.make_http_request(url=TEST_KINESIS_URL,
method='POST', data=new_request, headers=headers)
return result
if method == 'POST':
if uri.startswith('arn:aws:apigateway:') and ':sqs:path' in uri:
template = integration['requestTemplates'][APPLICATION_JSON]
account_id, queue = uri.split('/')[-2:]
region_name = uri.split(':')[3]
new_request = aws_stack.render_velocity_template(template, data) + '&QueueName=%s' % queue
headers = aws_stack.mock_aws_request_headers(service='sqs', region_name=region_name)
url = urljoin(TEST_SQS_URL, 'queue/%s' % queue)
result = common.make_http_request(url, method='POST', headers=headers, data=new_request)
return result
msg = 'API Gateway AWS integration action URI "%s", method "%s" not yet implemented' % (uri, method)
LOGGER.warning(msg)
return make_error_response(msg, 404)
elif integration['type'] == 'AWS_PROXY':
if uri.startswith('arn:aws:apigateway:') and ':lambda:path' in uri:
func_arn = uri.split(':lambda:path')[1].split('functions/')[1].split('/invocations')[0]
data_str = json.dumps(data) if isinstance(data, (dict, list)) else to_str(data)
account_id = uri.split(':lambda:path')[1].split(':function:')[0].split(':')[-1]
source_ip = headers['X-Forwarded-For'].split(',')[-2]
# Sample request context:
# https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-create-api-as-simple-proxy-for-lambda.html#api-gateway-create-api-as-simple-proxy-for-lambda-test
request_context = {
'path': relative_path,
'accountId': account_id,
'resourceId': resource.get('id'),
'stage': stage,
'identity': {
'accountId': account_id,
'sourceIp': source_ip,
'userAgent': headers['User-Agent'],
}
}
try:
path_params = extract_path_params(path=relative_path, extracted_path=extracted_path)
except Exception:
path_params = {}
result = lambda_api.process_apigateway_invocation(func_arn, relative_path, data_str,
headers, path_params=path_params, query_string_params=query_string_params,
method=method, resource_path=path, request_context=request_context)
if isinstance(result, FlaskResponse):
return flask_to_requests_response(result)
if isinstance(result, Response):
return result
response = Response()
parsed_result = result if isinstance(result, dict) else json.loads(str(result))
parsed_result = common.json_safe(parsed_result)
parsed_result = {} if parsed_result is None else parsed_result
response.status_code = int(parsed_result.get('statusCode', 200))
parsed_headers = parsed_result.get('headers', {})
if parsed_headers is not None:
response.headers.update(parsed_headers)
try:
if isinstance(parsed_result['body'], dict):
response._content = json.dumps(parsed_result['body'])
else:
response._content = to_bytes(parsed_result['body'])
except Exception:
response._content = '{}'
response.headers['Content-Length'] = len(response._content)
return response
else:
msg = 'API Gateway action uri "%s" not yet implemented' % uri
LOGGER.warning(msg)
return make_error_response(msg, 404)
elif integration['type'] == 'HTTP':
function = getattr(requests, method.lower())
if isinstance(data, dict):
data = json.dumps(data)
result = function(integration['uri'], data=data, headers=headers)
return result
else:
msg = ('API Gateway integration type "%s" for method "%s" not yet implemented' %
(integration['type'], method))
LOGGER.warning(msg)
return make_error_response(msg, 404)
def invoke_rest_api_integration_backend(api_id,
stage,
integration,
method,
path,
invocation_path,
data,
headers,
resource_path,
context={},
resource_id=None,
response_templates={}):
relative_path, query_string_params = extract_query_string_params(
path=invocation_path)
integration_type_orig = integration.get('type') or integration.get(
'integrationType') or ''
integration_type = integration_type_orig.upper()
uri = integration.get('uri') or integration.get('integrationUri') or ''
try:
path_params = extract_path_params(path=relative_path,
extracted_path=resource_path)
except Exception:
path_params = {}
if (uri.startswith('arn:aws:apigateway:')
and ':lambda:path' in uri) or uri.startswith('arn:aws:lambda'):
if integration_type in ['AWS', 'AWS_PROXY']:
func_arn = uri
if ':lambda:path' in uri:
func_arn = uri.split(':lambda:path')[1].split(
'functions/')[1].split('/invocations')[0]
# apply custom request template
data_str = data
try:
data_str = json.dumps(data) if isinstance(
data, (dict, list)) else to_str(data)
data_str = apply_template(integration,
'request',
data_str,
path_params=path_params,
query_params=query_string_params,
headers=headers)
except Exception:
pass
# Sample request context:
# https://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-create-api-as-simple-proxy-for-lambda.html#api-gateway-create-api-as-simple-proxy-for-lambda-test
request_context = get_lambda_event_request_context(
method,
path,
data,
headers,
integration_uri=uri,
resource_id=resource_id,
resource_path=resource_path)
stage_variables = get_stage_variables(api_id, stage)
result = lambda_api.process_apigateway_invocation(
func_arn,
relative_path,
data_str,
stage,
api_id,
headers,
path_params=path_params,
query_string_params=query_string_params,
method=method,
resource_path=resource_path,
request_context=request_context,
event_context=context,
stage_variables=stage_variables)
if isinstance(result, FlaskResponse):
response = flask_to_requests_response(result)
elif isinstance(result, Response):
response = result
else:
response = LambdaResponse()
parsed_result = result if isinstance(
result, dict) else json.loads(str(result or '{}'))
parsed_result = common.json_safe(parsed_result)
parsed_result = {} if parsed_result is None else parsed_result
response.status_code = int(parsed_result.get(
'statusCode', 200))
parsed_headers = parsed_result.get('headers', {})
if parsed_headers is not None:
response.headers.update(parsed_headers)
try:
if isinstance(parsed_result['body'], dict):
response._content = json.dumps(parsed_result['body'])
else:
body_bytes = to_bytes(parsed_result.get('body') or '')
if parsed_result.get('isBase64Encoded', False):
body_bytes = base64.b64decode(body_bytes)
response._content = body_bytes
except Exception as e:
LOG.warning("Couldn't set lambda response content: %s" % e)
response._content = '{}'
update_content_length(response)
response.multi_value_headers = parsed_result.get(
'multiValueHeaders') or {}
# apply custom response template
response._content = apply_template(integration, 'response',
response._content)
response.headers['Content-Length'] = str(
len(response.content or ''))
return response
raise Exception(
'API Gateway %s integration action "%s", method "%s" not yet implemented'
% (integration_type, uri, method))
elif integration_type == 'AWS':
if 'kinesis:action/' in uri:
if uri.endswith('kinesis:action/PutRecord'):
target = kinesis_listener.ACTION_PUT_RECORD
if uri.endswith('kinesis:action/PutRecords'):
target = kinesis_listener.ACTION_PUT_RECORDS
if uri.endswith('kinesis:action/ListStreams'):
target = kinesis_listener.ACTION_LIST_STREAMS
template = integration['requestTemplates'][APPLICATION_JSON]
new_request = aws_stack.render_velocity_template(template, data)
# forward records to target kinesis stream
headers = aws_stack.mock_aws_request_headers(service='kinesis')
headers['X-Amz-Target'] = target
result = common.make_http_request(url=TEST_KINESIS_URL,
method='POST',
data=new_request,
headers=headers)
# TODO apply response template..?
return result
elif 'states:action/' in uri:
if uri.endswith('states:action/StartExecution'):
action = 'StartExecution'
decoded_data = data.decode()
payload = {}
if 'stateMachineArn' in decoded_data and 'input' in decoded_data:
payload = json.loads(decoded_data)
elif APPLICATION_JSON in integration.get('requestTemplates', {}):
template = integration['requestTemplates'][APPLICATION_JSON]
payload = aws_stack.render_velocity_template(template,
data,
as_json=True)
client = aws_stack.connect_to_service('stepfunctions')
kwargs = {'name': payload['name']} if 'name' in payload else {}
result = client.start_execution(
stateMachineArn=payload['stateMachineArn'],
input=payload['input'],
**kwargs)
response = requests_response(
content={
'executionArn': result['executionArn'],
'startDate': str(result['startDate'])
},
headers=aws_stack.mock_aws_request_headers())
response.headers['content-type'] = APPLICATION_JSON
return response
elif 's3:path/' in uri and method == 'GET':
s3 = aws_stack.connect_to_service('s3')
uri_match = re.match(TARGET_REGEX_S3_URI, uri)
if uri_match:
bucket, object_key = uri_match.group('bucket', 'object')
LOG.debug('Getting request for bucket %s object %s', bucket,
object_key)
try:
object = s3.get_object(Bucket=bucket, Key=object_key)
except s3.exceptions.NoSuchKey:
msg = 'Object %s not found' % object_key
LOG.debug(msg)
return make_error_response(msg, 404)
headers = aws_stack.mock_aws_request_headers(service='s3')
if object.get('ContentType'):
headers['Content-Type'] = object['ContentType']
# stream used so large files do not fill memory
response = request_response_stream(stream=object['Body'],
headers=headers)
return response
else:
msg = 'Request URI does not match s3 specifications'
LOG.warning(msg)
return make_error_response(msg, 400)
if method == 'POST':
if uri.startswith('arn:aws:apigateway:') and ':sqs:path' in uri:
template = integration['requestTemplates'][APPLICATION_JSON]
account_id, queue = uri.split('/')[-2:]
region_name = uri.split(':')[3]
new_request = '%s&QueueName=%s' % (
aws_stack.render_velocity_template(template, data), queue)
headers = aws_stack.mock_aws_request_headers(
service='sqs', region_name=region_name)
url = urljoin(TEST_SQS_URL,
'%s/%s' % (TEST_AWS_ACCOUNT_ID, queue))
result = common.make_http_request(url,
method='POST',
headers=headers,
data=new_request)
return result
raise Exception(
'API Gateway AWS integration action URI "%s", method "%s" not yet implemented'
% (uri, method))
elif integration_type == 'AWS_PROXY':
if uri.startswith('arn:aws:apigateway:') and ':dynamodb:action' in uri:
# arn:aws:apigateway:us-east-1:dynamodb:action/PutItem&Table=MusicCollection
table_name = uri.split(':dynamodb:action')[1].split('&Table=')[1]
action = uri.split(':dynamodb:action')[1].split('&Table=')[0]
if 'PutItem' in action and method == 'PUT':
response_template = response_templates.get('application/json')
if response_template is None:
msg = 'Invalid response template defined in integration response.'
LOG.info('%s Existing: %s' % (msg, response_templates))
return make_error_response(msg, 404)
response_template = json.loads(response_template)
if response_template['TableName'] != table_name:
msg = 'Invalid table name specified in integration response template.'
return make_error_response(msg, 404)
dynamo_client = aws_stack.connect_to_resource('dynamodb')
table = dynamo_client.Table(table_name)
event_data = {}
data_dict = json.loads(data)
for key, _ in response_template['Item'].items():
event_data[key] = data_dict[key]
table.put_item(Item=event_data)
response = requests_response(
event_data, headers=aws_stack.mock_aws_request_headers())
return response
else:
raise Exception(
'API Gateway action uri "%s", integration type %s not yet implemented'
% (uri, integration_type))
elif integration_type in ['HTTP_PROXY', 'HTTP']:
if ':servicediscovery:' in uri:
# check if this is a servicediscovery integration URI
client = aws_stack.connect_to_service('servicediscovery')
service_id = uri.split('/')[-1]
instances = client.list_instances(
ServiceId=service_id)['Instances']
instance = (instances or [None])[0]
if instance and instance.get('Id'):
uri = 'http://%s/%s' % (instance['Id'],
invocation_path.lstrip('/'))
# apply custom request template
data = apply_template(integration, 'request', data)
if isinstance(data, dict):
data = json.dumps(data)
uri = apply_request_parameter(integration=integration,
path_params=path_params)
function = getattr(requests, method.lower())
result = function(uri, data=data, headers=headers)
# apply custom response template
data = apply_template(integration, 'response', data)
return result
elif integration_type == 'MOCK':
# return empty response - details filled in via responseParameters above...
return requests_response({})
if method == 'OPTIONS':
# fall back to returning CORS headers if this is an OPTIONS request
return get_cors_response(headers)
raise Exception(
'API Gateway integration type "%s", method "%s", URI "%s" not yet implemented'
% (integration_type, method, uri))