python-keycloak/tests/test_keycloak_openid.py

"""Test module for KeycloakOpenID."""

from typing import Tuple
from unittest import mock

import pytest

from keycloak import KeycloakAdmin, KeycloakOpenID
from keycloak.authorization import Authorization
from keycloak.authorization.permission import Permission
from keycloak.authorization.policy import Policy
from keycloak.authorization.role import Role
from keycloak.connection import ConnectionManager
from keycloak.exceptions import (
    KeycloakAuthenticationError,
    KeycloakAuthorizationConfigError,
    KeycloakDeprecationError,
    KeycloakInvalidTokenError,
    KeycloakPostError,
    KeycloakRPTNotFound,
)


def test_keycloak_openid_init(env):
    """Test KeycloakOpenId's init method.

    :param env: Environment fixture
    :type env: KeycloakTestEnv
    """
    oid = KeycloakOpenID(
        server_url=f"http://{env.KEYCLOAK_HOST}:{env.KEYCLOAK_PORT}",
        realm_name="master",
        client_id="admin-cli",
    )

    assert oid.client_id == "admin-cli"
    assert oid.client_secret_key is None
    assert oid.realm_name == "master"
    assert isinstance(oid.connection, ConnectionManager)
    assert isinstance(oid.authorization, Authorization)


def test_well_known(oid: KeycloakOpenID):
    """Test the well_known method.

    :param oid: Keycloak OpenID client
    :type oid: KeycloakOpenID
    """
    res = oid.well_known()
    assert res is not None
    assert res != dict()
    for key in [
        "acr_values_supported",
        "authorization_encryption_alg_values_supported",
        "authorization_encryption_enc_values_supported",
        "authorization_endpoint",
        "authorization_signing_alg_values_supported",
        "backchannel_authentication_endpoint",
        "backchannel_authentication_request_signing_alg_values_supported",
        "backchannel_logout_session_supported",
        "backchannel_logout_supported",
        "backchannel_token_delivery_modes_supported",
        "check_session_iframe",
        "claim_types_supported",
        "claims_parameter_supported",
        "claims_supported",
        "code_challenge_methods_supported",
        "device_authorization_endpoint",
        "end_session_endpoint",
        "frontchannel_logout_session_supported",
        "frontchannel_logout_supported",
        "grant_types_supported",
        "id_token_encryption_alg_values_supported",
        "id_token_encryption_enc_values_supported",
        "id_token_signing_alg_values_supported",
        "introspection_endpoint",
        "introspection_endpoint_auth_methods_supported",
        "introspection_endpoint_auth_signing_alg_values_supported",
        "issuer",
        "jwks_uri",
        "mtls_endpoint_aliases",
        "pushed_authorization_request_endpoint",
        "registration_endpoint",
        "request_object_encryption_alg_values_supported",
        "request_object_encryption_enc_values_supported",
        "request_object_signing_alg_values_supported",
        "request_parameter_supported",
        "request_uri_parameter_supported",
        "require_pushed_authorization_requests",
        "require_request_uri_registration",
        "response_modes_supported",
        "response_types_supported",
        "revocation_endpoint",
        "revocation_endpoint_auth_methods_supported",
        "revocation_endpoint_auth_signing_alg_values_supported",
        "scopes_supported",
        "subject_types_supported",
        "tls_client_certificate_bound_access_tokens",
        "token_endpoint",
        "token_endpoint_auth_methods_supported",
        "token_endpoint_auth_signing_alg_values_supported",
        "userinfo_encryption_alg_values_supported",
        "userinfo_encryption_enc_values_supported",
        "userinfo_endpoint",
        "userinfo_signing_alg_values_supported",
    ]:
        assert key in res


def test_auth_url(env, oid: KeycloakOpenID):
    """Test the auth_url method.

    :param env: Environment fixture
    :type env: KeycloakTestEnv
    :param oid: Keycloak OpenID client
    :type oid: KeycloakOpenID
    """
    res = oid.auth_url(redirect_uri="http://test.test/*")
    assert (
        res
        == f"http://{env.KEYCLOAK_HOST}:{env.KEYCLOAK_PORT}/realms/{oid.realm_name}"
        + f"/protocol/openid-connect/auth?client_id={oid.client_id}&response_type=code"
        + "&redirect_uri=http://test.test/*&scope=email&state="
    )


def test_token(oid_with_credentials: Tuple[KeycloakOpenID, str, str]):
    """Test the token method.

    :param oid_with_credentials: Keycloak OpenID client with pre-configured user credentials
    :type oid_with_credentials: Tuple[KeycloakOpenID, str, str]
    """
    oid, username, password = oid_with_credentials
    token = oid.token(username=username, password=password)
    assert token == {
        "access_token": mock.ANY,
        "expires_in": mock.ANY,
        "id_token": mock.ANY,
        "not-before-policy": 0,
        "refresh_expires_in": mock.ANY,
        "refresh_token": mock.ANY,
        "scope": mock.ANY,
        "session_state": mock.ANY,
        "token_type": "Bearer",
    }

    # Test with dummy totp
    token = oid.token(username=username, password=password, totp="123456")
    assert token == {
        "access_token": mock.ANY,
        "expires_in": mock.ANY,
        "id_token": mock.ANY,
        "not-before-policy": 0,
        "refresh_expires_in": mock.ANY,
        "refresh_token": mock.ANY,
        "scope": mock.ANY,
        "session_state": mock.ANY,
        "token_type": "Bearer",
    }

    # Test with extra param
    token = oid.token(username=username, password=password, extra_param="foo")
    assert token == {
        "access_token": mock.ANY,
        "expires_in": mock.ANY,
        "id_token": mock.ANY,
        "not-before-policy": 0,
        "refresh_expires_in": mock.ANY,
        "refresh_token": mock.ANY,
        "scope": mock.ANY,
        "session_state": mock.ANY,
        "token_type": "Bearer",
    }


def test_exchange_token(
    oid_with_credentials: Tuple[KeycloakOpenID, str, str], admin: KeycloakAdmin
):
    """Test the exchange token method.

    :param oid_with_credentials: Keycloak OpenID client with pre-configured user credentials
    :type oid_with_credentials: Tuple[KeycloakOpenID, str, str]
    :param admin: Keycloak Admin client
    :type admin: KeycloakAdmin
    """
    # Verify existing user
    oid, username, password = oid_with_credentials

    # Allow impersonation
    admin.change_current_realm(oid.realm_name)
    admin.assign_client_role(
        user_id=admin.get_user_id(username=username),
        client_id=admin.get_client_id(client_id="realm-management"),
        roles=[
            admin.get_client_role(
                client_id=admin.get_client_id(client_id="realm-management"),
                role_name="impersonation",
            )
        ],
    )

    token = oid.token(username=username, password=password)
    assert oid.userinfo(token=token["access_token"]) == {
        "email": f"{username}@test.test",
        "email_verified": False,
        "preferred_username": username,
        "sub": mock.ANY,
    }

    # Exchange token with the new user
    new_token = oid.exchange_token(
        token=token["access_token"], audience=oid.client_id, subject=username
    )
    assert oid.userinfo(token=new_token["access_token"]) == {
        "email": f"{username}@test.test",
        "email_verified": False,
        "preferred_username": username,
        "sub": mock.ANY,
    }
    assert token != new_token


def test_logout(oid_with_credentials):
    """Test logout.

    :param oid_with_credentials: Keycloak OpenID client with pre-configured user credentials
    :type oid_with_credentials: Tuple[KeycloakOpenID, str, str]
    """
    oid, username, password = oid_with_credentials

    token = oid.token(username=username, password=password)
    assert oid.userinfo(token=token["access_token"]) != dict()
    assert oid.logout(refresh_token=token["refresh_token"]) == dict()

    with pytest.raises(KeycloakAuthenticationError):
        oid.userinfo(token=token["access_token"])


def test_certs(oid: KeycloakOpenID):
    """Test certificates.

    :param oid: Keycloak OpenID client
    :type oid: KeycloakOpenID
    """
    assert len(oid.certs()["keys"]) == 2


def test_public_key(oid: KeycloakOpenID):
    """Test public key.

    :param oid: Keycloak OpenID client
    :type oid: KeycloakOpenID
    """
    assert oid.public_key() is not None


def test_entitlement(
    oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str], admin: KeycloakAdmin
):
    """Test entitlement.

    :param oid_with_credentials_authz: Keycloak OpenID client configured as an authorization
        server with client credentials
    :type oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str]
    :param admin: Keycloak Admin client
    :type admin: KeycloakAdmin
    """
    oid, username, password = oid_with_credentials_authz
    token = oid.token(username=username, password=password)
    resource_server_id = admin.get_client_authz_resources(
        client_id=admin.get_client_id(oid.client_id)
    )[0]["_id"]

    with pytest.raises(KeycloakDeprecationError):
        oid.entitlement(token=token["access_token"], resource_server_id=resource_server_id)


def test_introspect(oid_with_credentials: Tuple[KeycloakOpenID, str, str]):
    """Test introspect.

    :param oid_with_credentials: Keycloak OpenID client with pre-configured user credentials
    :type oid_with_credentials: Tuple[KeycloakOpenID, str, str]
    """
    oid, username, password = oid_with_credentials
    token = oid.token(username=username, password=password)

    assert oid.introspect(token=token["access_token"])["active"]
    assert oid.introspect(
        token=token["access_token"], rpt="some", token_type_hint="requesting_party_token"
    ) == {"active": False}

    with pytest.raises(KeycloakRPTNotFound):
        oid.introspect(token=token["access_token"], token_type_hint="requesting_party_token")


def test_decode_token(oid_with_credentials: Tuple[KeycloakOpenID, str, str]):
    """Test decode token.

    :param oid_with_credentials: Keycloak OpenID client with pre-configured user credentials
    :type oid_with_credentials: Tuple[KeycloakOpenID, str, str]
    """
    oid, username, password = oid_with_credentials
    token = oid.token(username=username, password=password)

    assert (
        oid.decode_token(
            token=token["access_token"],
            key="-----BEGIN PUBLIC KEY-----\n" + oid.public_key() + "\n-----END PUBLIC KEY-----",
            options={"verify_aud": False},
        )["preferred_username"]
        == username
    )


def test_load_authorization_config(oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str]):
    """Test load authorization config.

    :param oid_with_credentials_authz: Keycloak OpenID client configured as an authorization
        server with client credentials
    :type oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str]
    """
    oid, username, password = oid_with_credentials_authz

    oid.load_authorization_config(path="tests/data/authz_settings.json")
    assert "test-authz-rb-policy" in oid.authorization.policies
    assert isinstance(oid.authorization.policies["test-authz-rb-policy"], Policy)
    assert len(oid.authorization.policies["test-authz-rb-policy"].roles) == 1
    assert isinstance(oid.authorization.policies["test-authz-rb-policy"].roles[0], Role)
    assert len(oid.authorization.policies["test-authz-rb-policy"].permissions) == 2
    assert isinstance(
        oid.authorization.policies["test-authz-rb-policy"].permissions[0], Permission
    )


def test_get_policies(oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str]):
    """Test get policies.

    :param oid_with_credentials_authz: Keycloak OpenID client configured as an authorization
        server with client credentials
    :type oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str]
    """
    oid, username, password = oid_with_credentials_authz
    token = oid.token(username=username, password=password)

    with pytest.raises(KeycloakAuthorizationConfigError):
        oid.get_policies(token=token["access_token"])

    oid.load_authorization_config(path="tests/data/authz_settings.json")
    assert oid.get_policies(token=token["access_token"]) is None

    key = "-----BEGIN PUBLIC KEY-----\n" + oid.public_key() + "\n-----END PUBLIC KEY-----"
    orig_client_id = oid.client_id
    oid.client_id = "account"
    assert oid.get_policies(token=token["access_token"], method_token_info="decode", key=key) == []
    policy = Policy(name="test", type="role", logic="POSITIVE", decision_strategy="UNANIMOUS")
    policy.add_role(role="account/view-profile")
    oid.authorization.policies["test"] = policy
    assert [
        str(x)
        for x in oid.get_policies(token=token["access_token"], method_token_info="decode", key=key)
    ] == ["Policy: test (role)"]
    assert [
        repr(x)
        for x in oid.get_policies(token=token["access_token"], method_token_info="decode", key=key)
    ] == ["<Policy: test (role)>"]
    oid.client_id = orig_client_id

    oid.logout(refresh_token=token["refresh_token"])
    with pytest.raises(KeycloakInvalidTokenError):
        oid.get_policies(token=token["access_token"])


def test_get_permissions(oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str]):
    """Test get policies.

    :param oid_with_credentials_authz: Keycloak OpenID client configured as an authorization
        server with client credentials
    :type oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str]
    """
    oid, username, password = oid_with_credentials_authz
    token = oid.token(username=username, password=password)

    with pytest.raises(KeycloakAuthorizationConfigError):
        oid.get_permissions(token=token["access_token"])

    oid.load_authorization_config(path="tests/data/authz_settings.json")
    assert oid.get_permissions(token=token["access_token"]) is None

    key = "-----BEGIN PUBLIC KEY-----\n" + oid.public_key() + "\n-----END PUBLIC KEY-----"
    orig_client_id = oid.client_id
    oid.client_id = "account"
    assert (
        oid.get_permissions(token=token["access_token"], method_token_info="decode", key=key) == []
    )
    policy = Policy(name="test", type="role", logic="POSITIVE", decision_strategy="UNANIMOUS")
    policy.add_role(role="account/view-profile")
    policy.add_permission(
        permission=Permission(
            name="test-perm", type="resource", logic="POSITIVE", decision_strategy="UNANIMOUS"
        )
    )
    oid.authorization.policies["test"] = policy
    assert [
        str(x)
        for x in oid.get_permissions(
            token=token["access_token"], method_token_info="decode", key=key
        )
    ] == ["Permission: test-perm (resource)"]
    assert [
        repr(x)
        for x in oid.get_permissions(
            token=token["access_token"], method_token_info="decode", key=key
        )
    ] == ["<Permission: test-perm (resource)>"]
    oid.client_id = orig_client_id

    oid.logout(refresh_token=token["refresh_token"])
    with pytest.raises(KeycloakInvalidTokenError):
        oid.get_permissions(token=token["access_token"])


def test_uma_permissions(oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str]):
    """Test UMA permissions.

    :param oid_with_credentials_authz: Keycloak OpenID client configured as an authorization
        server with client credentials
    :type oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str]
    """
    oid, username, password = oid_with_credentials_authz
    token = oid.token(username=username, password=password)

    assert len(oid.uma_permissions(token=token["access_token"])) == 1
    assert oid.uma_permissions(token=token["access_token"])[0]["rsname"] == "Default Resource"


def test_has_uma_access(
    oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str], admin: KeycloakAdmin
):
    """Test has UMA access.

    :param oid_with_credentials_authz: Keycloak OpenID client configured as an authorization
        server with client credentials
    :type oid_with_credentials_authz: Tuple[KeycloakOpenID, str, str]
    :param admin: Keycloak Admin client
    :type admin: KeycloakAdmin
    """
    oid, username, password = oid_with_credentials_authz
    token = oid.token(username=username, password=password)

    assert (
        str(oid.has_uma_access(token=token["access_token"], permissions=""))
        == "AuthStatus(is_authorized=True, is_logged_in=True, missing_permissions=set())"
    )
    assert (
        str(oid.has_uma_access(token=token["access_token"], permissions="Default Resource"))
        == "AuthStatus(is_authorized=True, is_logged_in=True, missing_permissions=set())"
    )

    with pytest.raises(KeycloakPostError):
        oid.has_uma_access(token=token["access_token"], permissions="Does not exist")

    oid.logout(refresh_token=token["refresh_token"])
    assert (
        str(oid.has_uma_access(token=token["access_token"], permissions=""))
        == "AuthStatus(is_authorized=False, is_logged_in=False, missing_permissions=set())"
    )
    assert (
        str(oid.has_uma_access(token=admin.token["access_token"], permissions="Default Resource"))
        == "AuthStatus(is_authorized=False, is_logged_in=False, missing_permissions="
        + "{'Default Resource'})"
    )