python-keycloak/tests/test_keycloak_openid.py

"""Test module for KeycloakOpenID."""
from typing import Tuple
from unittest import mock

import pytest

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,
)
from keycloak.keycloak_admin import KeycloakAdmin
from keycloak.keycloak_openid import KeycloakOpenID


def test_keycloak_openid_init(env):
    """Test KeycloakOpenId's init method."""
    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."""
    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."""
    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."""
    oid, username, password = oid_with_credentials
    token = oid.token(username=username, password=password)
    assert token == {
        "access_token": mock.ANY,
        "expires_in": 300,
        "not-before-policy": 0,
        "refresh_expires_in": 1800,
        "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": 300,
        "not-before-policy": 0,
        "refresh_expires_in": 1800,
        "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": 300,
        "not-before-policy": 0,
        "refresh_expires_in": 1800,
        "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."""
    # Verify existing user
    oid, username, password = oid_with_credentials

    # Allow impersonation
    admin.realm_name = 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"],
        client_id=oid.client_id,
        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."""
    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."""
    assert len(oid.certs()["keys"]) == 2


def test_public_key(oid: KeycloakOpenID):
    """Test public key."""
    assert oid.public_key() is not None


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