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test_lambda_auth_props.py
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test_lambda_auth_props.py
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from unittest import TestCase
from unittest.mock import patch
from parameterized import parameterized
from samcli.commands.local.cli_common.user_exceptions import InvalidSamTemplateException
from samcli.commands.local.lib.validators.lambda_auth_props import (
LambdaAuthorizerV1Validator,
LambdaAuthorizerV2Validator,
)
class TestLambdaAuthorizerV1Validator(TestCase):
@patch("samcli.commands.local.lib.swagger.integration_uri.LambdaUri.get_function_name")
def test_valid_v1_properties(self, function_mock):
logical_id = "id"
properties = {
"Properties": {
"Type": "REQUEST",
"RestApiId": "my-rest-api",
"Name": "my-auth-name",
"AuthorizerUri": "arn",
"IdentitySource": "method.request.header.auth, method.request.querystring.abc",
}
}
# mock ARN resolving function
auth_lambda_func_name = "my-lambda"
function_mock.return_value = auth_lambda_func_name
self.assertTrue(LambdaAuthorizerV1Validator.validate(logical_id, properties))
@parameterized.expand(
[
( # test no type
{"Properties": {}},
"Authorizer 'my-auth-id' is missing the 'Type' property, an Authorizer type must be defined.",
),
( # test no rest api id
{"Properties": {"Type": "TOKEN"}},
"Authorizer 'my-auth-id' is missing the 'RestApiId' property, this must be defined.",
),
( # test no name
{"Properties": {"Type": "TOKEN", "RestApiId": "restapiid"}},
"Authorizer 'my-auth-id' is missing the 'Name' property, the Name must be defined.",
),
( # test no authorizer uri
{"Properties": {"Type": "TOKEN", "RestApiId": "restapiid", "Name": "myauth"}},
"Authorizer 'my-auth-id' is missing the 'AuthorizerUri' property, a valid Lambda ARN must be provided.",
),
( # test invalid identity source (missing)
{"Properties": {"Type": "TOKEN", "RestApiId": "restapiid", "Name": "myauth", "AuthorizerUri": "arn"}},
"Lambda Authorizer 'my-auth-id' of type TOKEN, must have 'IdentitySource' of type string defined.",
),
( # test invalid identity source (must be str)
{
"Properties": {
"Type": "TOKEN",
"RestApiId": "restapiid",
"Name": "myauth",
"AuthorizerUri": "arn",
"IdentitySource": {},
}
},
"Lambda Authorizer 'my-auth-id' contains an invalid 'IdentitySource', it must be a comma-separated string.",
),
( # test request type using validation
{
"Properties": {
"Type": "REQUEST",
"RestApiId": "restapiid",
"Name": "myauth",
"AuthorizerUri": "arn",
"IdentityValidationExpression": "123",
}
},
"Lambda Authorizer 'my-auth-id' has 'IdentityValidationExpression' property defined, but validation is only supported on TOKEN type authorizers.",
),
]
)
@patch("samcli.commands.local.lib.swagger.integration_uri.LambdaUri.get_function_name")
def test_invalid_v1_lamabda_authorizers(self, resource, expected_exception_message, get_func_name_mock):
lambda_auth_logical_id = "my-auth-id"
# mock ARN resolving function
auth_lambda_func_name = "my-lambda"
get_func_name_mock.return_value = auth_lambda_func_name
with self.assertRaisesRegex(InvalidSamTemplateException, expected_exception_message):
LambdaAuthorizerV1Validator.validate(lambda_auth_logical_id, resource)
@patch("samcli.commands.local.lib.swagger.integration_uri.LambdaUri.get_function_name")
def test_invalid_v1_skip_invalid_type(self, get_func_name_mock):
properties = {"Properties": {"Type": "_-_-_", "RestApiId": "restapiid", "Name": "myauth"}}
lambda_auth_logical_id = "my-auth-id"
# mock ARN resolving function
auth_lambda_func_name = "my-lambda"
get_func_name_mock.return_value = auth_lambda_func_name
self.assertFalse(LambdaAuthorizerV1Validator.validate(lambda_auth_logical_id, properties))
@patch("samcli.commands.local.lib.swagger.integration_uri.LambdaUri.get_function_name")
def test_invalid_v1_skip_invalid_arn(self, get_func_name_mock):
properties = {
"Properties": {"Type": "TOKEN", "RestApiId": "restapiid", "Name": "myauth", "AuthorizerUri": "arn"}
}
lambda_auth_logical_id = "my-auth-id"
# mock ARN resolving function to return None
get_func_name_mock.return_value = None
self.assertFalse(LambdaAuthorizerV1Validator.validate(lambda_auth_logical_id, properties))
class TestLambdaAuthorizerV2Validator(TestCase):
@parameterized.expand(
[
( # authorizer with 2.0 payload and simple responses
{
"Properties": {
"AuthorizerType": "REQUEST",
"ApiId": "my-rest-api",
"Name": "my-auth-name",
"AuthorizerUri": "arn",
"IdentitySource": ["$request.header.auth", "$context.something"],
"AuthorizerPayloadFormatVersion": "2.0",
"EnableSimpleResponses": True,
}
},
),
( # authorizer with 2.0 payload and NO simple responses
{
"Properties": {
"AuthorizerType": "REQUEST",
"ApiId": "my-rest-api",
"Name": "my-auth-name",
"AuthorizerUri": "arn",
"IdentitySource": ["$request.header.auth", "$context.something"],
"AuthorizerPayloadFormatVersion": "2.0",
"EnableSimpleResponses": False,
}
},
),
( # authorizer with 1.0 payload and NO simple responses
{
"Properties": {
"AuthorizerType": "REQUEST",
"ApiId": "my-rest-api",
"Name": "my-auth-name",
"AuthorizerUri": "arn",
"IdentitySource": ["$request.header.auth", "$context.something"],
"AuthorizerPayloadFormatVersion": "1.0",
}
},
),
( # authorizer with missing payload version
{
"Properties": {
"AuthorizerType": "REQUEST",
"ApiId": "my-rest-api",
"Name": "my-auth-name",
"AuthorizerUri": "arn",
"IdentitySource": ["$request.header.auth", "$context.something"],
}
},
),
]
)
@patch("samcli.commands.local.lib.swagger.integration_uri.LambdaUri.get_function_name")
def test_valid_v2_properties(self, properties, function_mock):
logical_id = "id"
# mock ARN resolving function
auth_lambda_func_name = "my-lambda"
function_mock.return_value = auth_lambda_func_name
self.assertTrue(LambdaAuthorizerV2Validator.validate(logical_id, properties))
@parameterized.expand(
[
( # test no type
{"Properties": {}},
"Authorizer 'my-auth-id' is missing the 'AuthorizerType' property, an Authorizer type must be defined.",
),
( # test no rest api id
{"Properties": {"AuthorizerType": "REQUEST"}},
"Authorizer 'my-auth-id' is missing the 'ApiId' property, this must be defined.",
),
( # test no name
{"Properties": {"AuthorizerType": "REQUEST", "ApiId": "restapiid"}},
"Authorizer 'my-auth-id' is missing the 'Name' property, the Name must be defined.",
),
( # test no authorizer uri
{"Properties": {"AuthorizerType": "REQUEST", "ApiId": "restapiid", "Name": "myauth"}},
"Authorizer 'my-auth-id' is missing the 'AuthorizerUri' property, a valid Lambda ARN must be provided.",
),
( # test invalid identity source (missing)
{
"Properties": {
"AuthorizerType": "REQUEST",
"ApiId": "restapiid",
"Name": "myauth",
"AuthorizerUri": "arn",
}
},
"Lambda Authorizer 'my-auth-id' must have 'IdentitySource' of type list defined.",
),
( # test invalid identity source (must be list)
{
"Properties": {
"AuthorizerType": "REQUEST",
"ApiId": "restapiid",
"Name": "myauth",
"AuthorizerUri": "arn",
"IdentitySource": "hello world, im not a list",
}
},
"Lambda Authorizer 'my-auth-id' must have 'IdentitySource' of type list defined.",
),
( # test invalid payload version
{
"Properties": {
"AuthorizerType": "REQUEST",
"ApiId": "restapiid",
"Name": "myauth",
"AuthorizerUri": "arn",
"IdentitySource": [],
"AuthorizerPayloadFormatVersion": "1.2.3",
}
},
"Lambda Authorizer 'my-auth-id' contains an invalid 'AuthorizerPayloadFormatVersion', it must be set to '1.0' or '2.0'",
),
( # test using simple response but wrong payload version
{
"Properties": {
"AuthorizerType": "REQUEST",
"ApiId": "restapiid",
"Name": "myauth",
"AuthorizerUri": "arn",
"IdentitySource": [],
"AuthorizerPayloadFormatVersion": "1.0",
"EnableSimpleResponses": True,
}
},
"'EnableSimpleResponses' is only supported for '2.0' payload format versions for Lambda Authorizer 'my-auth-id'.",
),
]
)
@patch("samcli.commands.local.lib.swagger.integration_uri.LambdaUri.get_function_name")
def test_invalid_v2_lamabda_authorizers(self, resource, expected_exception_message, get_func_name_mock):
lambda_auth_logical_id = "my-auth-id"
# mock ARN resolving function
auth_lambda_func_name = "my-lambda"
get_func_name_mock.return_value = auth_lambda_func_name
with self.assertRaisesRegex(InvalidSamTemplateException, expected_exception_message):
LambdaAuthorizerV2Validator.validate(lambda_auth_logical_id, resource)
@patch("samcli.commands.local.lib.swagger.integration_uri.LambdaUri.get_function_name")
def test_invalid_v2_skip_invalid_type(self, get_func_name_mock):
properties = {"Properties": {"AuthorizerType": "TOKEN", "ApiId": "restapiid", "Name": "myauth"}}
lambda_auth_logical_id = "my-auth-id"
# mock ARN resolving function
auth_lambda_func_name = "my-lambda"
get_func_name_mock.return_value = auth_lambda_func_name
self.assertFalse(LambdaAuthorizerV2Validator.validate(lambda_auth_logical_id, properties))
@patch("samcli.commands.local.lib.swagger.integration_uri.LambdaUri.get_function_name")
def test_invalid_v2_skip_invalid_arn(self, get_func_name_mock):
properties = {
"Properties": {"AuthorizerType": "REQUEST", "ApiId": "restapiid", "Name": "myauth", "AuthorizerUri": "arn"}
}
lambda_auth_logical_id = "my-auth-id"
# mock ARN resolving function to return None
get_func_name_mock.return_value = None
self.assertFalse(LambdaAuthorizerV2Validator.validate(lambda_auth_logical_id, properties))