prowler/tests/providers/aws/services/acm/acm_service_test.py

import uuid
from datetime import datetime

import botocore
from freezegun import freeze_time
from mock import patch

from prowler.providers.aws.services.acm.acm_service import ACM
from tests.providers.aws.utils import (
    AWS_ACCOUNT_NUMBER,
    AWS_REGION_US_EAST_1,
    set_mocked_aws_provider,
)

# Mocking Access Analyzer Calls
make_api_call = botocore.client.BaseClient._make_api_call

CERTIFICATE_ARN = f"arn:aws:acm:{AWS_REGION_US_EAST_1}:{AWS_ACCOUNT_NUMBER}:certificate/{str(uuid.uuid4())}"
CERTIFICATE_NAME = "test-certificate.com"
CERTIFICATE_TYPE = "AMAZON_ISSUED"
CERTIFICATE_KEY_ALGORITHM = "RSA-4096"


def mock_make_api_call(self, operation_name, kwargs):
    """
    As you can see the operation_name has the list_analyzers snake_case form but
    we are using the ListAnalyzers form.
    Rationale -> https://github.com/boto/botocore/blob/develop/botocore/client.py#L810:L816

    We have to mock every AWS API call using Boto3
    """
    if operation_name == "ListCertificates":
        return {
            "CertificateSummaryList": [
                {
                    "CertificateArn": CERTIFICATE_ARN,
                    "DomainName": CERTIFICATE_NAME,
                    "SubjectAlternativeNameSummaries": [
                        "test-certificate-2.com",
                    ],
                    "HasAdditionalSubjectAlternativeNames": False,
                    "Status": "ISSUED",
                    "Type": CERTIFICATE_TYPE,
                    "KeyAlgorithm": "RSA-4096",
                    "KeyUsages": ["DIGITAL_SIGNATURE"],
                    "ExtendedKeyUsages": ["TLS_WEB_SERVER_AUTHENTICATION"],
                    "InUse": True,
                    "Exported": False,
                    "RenewalEligibility": "ELIGIBLE",
                    "NotBefore": datetime(2024, 1, 1),
                    "NotAfter": datetime(2024, 1, 1),
                    "CreatedAt": datetime(2024, 1, 1),
                    "IssuedAt": datetime(2024, 1, 1),
                    "ImportedAt": datetime(2024, 1, 1),
                    "RevokedAt": datetime(2024, 1, 1),
                }
            ]
        }
    if operation_name == "DescribeCertificate":
        if kwargs["CertificateArn"] == CERTIFICATE_ARN:
            return {
                "Certificate": {
                    "Options": {"CertificateTransparencyLoggingPreference": "DISABLED"},
                }
            }
    if operation_name == "ListTagsForCertificate":
        if kwargs["CertificateArn"] == CERTIFICATE_ARN:
            return {
                "Tags": [
                    {"Key": "test", "Value": "test"},
                ]
            }

    return make_api_call(self, operation_name, kwargs)


# Mock generate_regional_clients()
def mock_generate_regional_clients(provider, service):
    regional_client = provider._session.current_session.client(
        service, region_name=AWS_REGION_US_EAST_1
    )
    regional_client.region = AWS_REGION_US_EAST_1
    return {AWS_REGION_US_EAST_1: regional_client}


# Patch every AWS call using Boto3 and generate_regional_clients to have 1 client
@patch(
    "prowler.providers.aws.aws_provider.AwsProvider.generate_regional_clients",
    new=mock_generate_regional_clients,
)
@patch("botocore.client.BaseClient._make_api_call", new=mock_make_api_call)
# Freeze time
@freeze_time("2023-01-01")
# FIXME: Pending Moto PR to update ACM responses
class Test_ACM_Service:
    # Test ACM Service
    # @mock_acm
    def test_service(self):
        # ACM client for this test class
        aws_provider = set_mocked_aws_provider()
        acm = ACM(aws_provider)
        assert acm.service == "acm"

    # Test ACM Client
    # @mock_acm
    def test_client(self):
        # ACM client for this test class
        aws_provider = set_mocked_aws_provider()
        acm = ACM(aws_provider)
        for regional_client in acm.regional_clients.values():
            assert regional_client.__class__.__name__ == "ACM"

    # Test ACM Session
    # @mock_acm
    def test__get_session__(self):
        # ACM client for this test class
        aws_provider = set_mocked_aws_provider()
        acm = ACM(aws_provider)
        assert acm.session.__class__.__name__ == "Session"

    # Test ACM Session
    # @mock_acm
    def test_audited_account(self):
        # ACM client for this test class
        aws_provider = set_mocked_aws_provider()
        acm = ACM(aws_provider)
        assert acm.audited_account == AWS_ACCOUNT_NUMBER

    # Test ACM List Certificates
    # @mock_acm
    def test_list_and_describe_certificates(self):
        # Generate ACM Client
        # acm_client = client("acm", region_name=AWS_REGION)
        # Request ACM certificate
        # certificate = acm_client.request_certificate(
        #     DomainName="test.com",
        # )

        # ACM client for this test class
        aws_provider = set_mocked_aws_provider()
        acm = ACM(aws_provider)
        assert len(acm.certificates) == 1
        assert acm.certificates[CERTIFICATE_ARN].arn == CERTIFICATE_ARN
        assert acm.certificates[CERTIFICATE_ARN].name == CERTIFICATE_NAME
        assert acm.certificates[CERTIFICATE_ARN].type == CERTIFICATE_TYPE
        assert (
            acm.certificates[CERTIFICATE_ARN].key_algorithm == CERTIFICATE_KEY_ALGORITHM
        )
        assert acm.certificates[CERTIFICATE_ARN].expiration_days == 365
        assert acm.certificates[CERTIFICATE_ARN].transparency_logging is False
        assert acm.certificates[CERTIFICATE_ARN].region == AWS_REGION_US_EAST_1

    # Test ACM List Tags
    # @mock_acm
    def test_list_tags_for_certificate(self):
        # Generate ACM Client
        # acm_client = client("acm", region_name=AWS_REGION)
        # Request ACM certificate
        # certificate = acm_client.request_certificate(
        #     DomainName="test.com",
        # )

        # ACM client for this test class
        aws_provider = set_mocked_aws_provider()
        acm = ACM(aws_provider)
        assert len(acm.certificates) == 1
        assert acm.certificates[CERTIFICATE_ARN].tags == [
            {"Key": "test", "Value": "test"},
        ]