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How to use auth_context method in localstack

Best Python code snippet using localstack_python

test_authorization.py

Source:test_authorization.py

...26        # SAMPLE_V3_TOKEN has OS-TRUST:trust in it.27        token_data = test_token_provider.SAMPLE_V3_TOKEN28        token = token_model.KeystoneToken(token_id=uuid.uuid4().hex,29                                          token_data=token_data)30        auth_context = authorization.token_to_auth_context(token)31        self.assertEqual(token, auth_context['token'])32        self.assertTrue(auth_context['is_delegated_auth'])33        self.assertEqual(token_data['token']['user']['id'],34                         auth_context['user_id'])35        self.assertEqual(token_data['token']['user']['domain']['id'],36                         auth_context['user_domain_id'])37        self.assertEqual(token_data['token']['project']['id'],38                         auth_context['project_id'])39        self.assertEqual(token_data['token']['project']['domain']['id'],40                         auth_context['project_domain_id'])41        self.assertNotIn('domain_id', auth_context)42        self.assertNotIn('domain_name', auth_context)43        self.assertEqual(token_data['token']['OS-TRUST:trust']['id'],44                         auth_context['trust_id'])45        self.assertEqual(46            token_data['token']['OS-TRUST:trust']['trustor_user_id'],47            auth_context['trustor_id'])48        self.assertEqual(49            token_data['token']['OS-TRUST:trust']['trustee_user_id'],50            auth_context['trustee_id'])51        self.assertItemsEqual(52            [r['name'] for r in token_data['token']['roles']],53            auth_context['roles'])54        self.assertIsNone(auth_context['consumer_id'])55        self.assertIsNone(auth_context['access_token_id'])56        self.assertNotIn('group_ids', auth_context)57    def test_token_is_domain_scoped(self):58        # Check contents of auth_context when token is domain-scoped.59        token_data = copy.deepcopy(test_token_provider.SAMPLE_V3_TOKEN)60        del token_data['token']['project']61        domain_id = uuid.uuid4().hex62        domain_name = uuid.uuid4().hex63        token_data['token']['domain'] = {'id': domain_id, 'name': domain_name}64        token = token_model.KeystoneToken(token_id=uuid.uuid4().hex,65                                          token_data=token_data)66        auth_context = authorization.token_to_auth_context(token)67        self.assertNotIn('project_id', auth_context)68        self.assertNotIn('project_domain_id', auth_context)69        self.assertEqual(domain_id, auth_context['domain_id'])70        self.assertEqual(domain_name, auth_context['domain_name'])71    def test_token_is_unscoped(self):72        # Check contents of auth_context when the token is unscoped.73        token_data = copy.deepcopy(test_token_provider.SAMPLE_V3_TOKEN)74        del token_data['token']['project']75        token = token_model.KeystoneToken(token_id=uuid.uuid4().hex,76                                          token_data=token_data)77        auth_context = authorization.token_to_auth_context(token)78        self.assertNotIn('project_id', auth_context)79        self.assertNotIn('project_domain_id', auth_context)80        self.assertNotIn('domain_id', auth_context)81        self.assertNotIn('domain_name', auth_context)82    def test_token_is_for_federated_user(self):83        # When the token is for a federated user then group_ids is in84        # auth_context.85        token_data = copy.deepcopy(test_token_provider.SAMPLE_V3_TOKEN)86        group_ids = [uuid.uuid4().hex for x in range(1, 5)]87        federation_data = {'identity_provider': {'id': uuid.uuid4().hex},88                           'protocol': {'id': 'saml2'},89                           'groups': [{'id': gid} for gid in group_ids]}90        token_data['token']['user'][federation_constants.FEDERATION] = (91            federation_data)92        token = token_model.KeystoneToken(token_id=uuid.uuid4().hex,93                                          token_data=token_data)94        auth_context = authorization.token_to_auth_context(token)95        self.assertItemsEqual(group_ids, auth_context['group_ids'])96    def test_oauth_variables_set_for_oauth_token(self):97        token_data = copy.deepcopy(test_token_provider.SAMPLE_V3_TOKEN)98        access_token_id = uuid.uuid4().hex99        consumer_id = uuid.uuid4().hex100        token_data['token']['OS-OAUTH1'] = {'access_token_id': access_token_id,101                                            'consumer_id': consumer_id}102        token = token_model.KeystoneToken(token_id=uuid.uuid4().hex,103                                          token_data=token_data)104        auth_context = authorization.token_to_auth_context(token)105        self.assertEqual(access_token_id, auth_context['access_token_id'])106        self.assertEqual(consumer_id, auth_context['consumer_id'])107    def test_oauth_variables_not_set(self):108        token_data = copy.deepcopy(test_token_provider.SAMPLE_V3_TOKEN)109        token = token_model.KeystoneToken(token_id=uuid.uuid4().hex,110                                          token_data=token_data)111        auth_context = authorization.token_to_auth_context(token)112        self.assertIsNone(auth_context['access_token_id'])113        self.assertIsNone(auth_context['consumer_id'])114    def test_token_is_not_KeystoneToken_raises_exception(self):115        # If the token isn't a KeystoneToken then an UnexpectedError exception116        # is raised.117        self.assertRaises(exception.UnexpectedError,118                          authorization.token_to_auth_context, {})119    def test_user_id_missing_in_token_raises_exception(self):120        # If there's no user ID in the token then an Unauthorized121        # exception is raised.122        token_data = copy.deepcopy(test_token_provider.SAMPLE_V3_TOKEN)123        del token_data['token']['user']['id']124        token = token_model.KeystoneToken(token_id=uuid.uuid4().hex,125                                          token_data=token_data)...

func.py

Source:func.py

1import datetime2import io3import json4import logging5import oci6import base647from datetime import timedelta8import requests9from fdk import response10from requests.auth import HTTPBasicAuth11oauth_apps = {}12def initContext(context):13    # This method takes elements from the Application Context and from OCI Vault to create the OAuth App Clients object.14    if (len(oauth_apps) < 2):15        logging.getLogger().info('Retriving details about the API and backend OAuth Apps')16        try:17            logging.getLogger().info('initContext: Initializing context')18            oauth_apps['idcs'] = {'introspection_endpoint': context['idcs_introspection_endpoint'], 19                                  'client_id': context['idcs_app_client_id'], 20                                  'client_secret': getSecret(context['idcs_app_client_secret_ocid'])}21            oauth_apps['oic'] = {'token_endpoint': context['back_end_token_endpoint'], 22                                  'client_id': context['back_end_app_client_id'], 23                                  'client_secret': getSecret(context['back_end_client_secret_ocid'])}24        except Exception as ex:25            logging.getLogger().error('initContext: Failed to get config or secrets')26            print("ERROR [initContext]: Failed to get the configs", ex, flush=True)27            raise28    else:29        logging.getLogger().info('OAuth Apps already stored')30        31def getSecret(ocid):32    signer = oci.auth.signers.get_resource_principals_signer()33    try:34        client = oci.secrets.SecretsClient({}, signer=signer)35        secret_content = client.get_secret_bundle(ocid).data.secret_bundle_content.content.encode('utf-8')36        decrypted_secret_content = base64.b64decode(secret_content).decode('utf-8')37    except Exception as ex:38        logging.getLogger().error("getSecret: Failed to get Secret" + ex)39        print("Error [getSecret]: failed to retrieve", ex, flush=True)40        raise41    return decrypted_secret_content42def introspectToken(access_token, introspection_endpoint, client_id, client_secret):43    # This method handles the introspection of the received auth token to IDCS.  44    payload = {'token': access_token}45    headers = {'Content-Type' : 'application/x-www-form-urlencoded;charset=UTF-8', 46               'Accept': 'application/json'}47               48    try:49        token = requests.post(introspection_endpoint, 50                              data=payload, 51                              headers=headers, 52                              auth=HTTPBasicAuth(client_id, 53                              client_secret))54    except Exception as ex:55        logging.getLogger().error("introspectToken: Failed to introspect token" + ex)56        raise57    return token.json()58def getBackEndAuthToken(token_endpoint, client_id, client_secret):59    # This method gets the token from the back-end system (oic in this case)60    payload = {'grant_type': 'client_credentials'}61    headers = {'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8'}62    try:63        backend_token = json.loads(requests.post(token_endpoint, 64                                                 data=payload, 65                                                 headers=headers, 66                                                 auth=HTTPBasicAuth(client_id, client_secret)).text)67    except Exception as ex:68        logging.getLogger().error("getBackEndAuthToken: Failed to get oic token" + ex)69        raise70    71    return backend_token72def getAuthContext(token, client_apps):73    # This method populates the Auth Context that will be returned to the gateway.74    auth_context = {}75    # Calling IDCS to validate the token and retrieve the client info76    try:77        token_info = introspectToken(token[len('Bearer '):], client_apps['idcs']['introspection_endpoint'], client_apps['idcs']['client_id'], client_apps['idcs']['client_secret'])78    except Exception as ex:79            logging.getLogger().error("getAuthContext: Failed to introspect token" + ex)80            raise81    # If IDCS confirmed the token valid and active, we can proceed to populate the auth context82    if (token_info['active'] == True):83        auth_context['active'] = True84        auth_context['principal'] = token_info['sub']85        auth_context['scope'] = token_info['scope']86        # Retrieving the back-end Token87        backend_token = getBackEndAuthToken(client_apps['oic']['token_endpoint'], client_apps['oic']['client_id'], client_apps['oic']['client_secret'])88        89        # The maximum TTL for this auth is the lesser of the API Client Auth (IDCS) and the Gateway Client Auth (oic)90        if (datetime.datetime.fromtimestamp(token_info['exp']) < (datetime.datetime.utcnow() + timedelta(seconds=backend_token['expires_in']))):91            auth_context['expiresAt'] = (datetime.datetime.fromtimestamp(token_info['exp'])).replace(tzinfo=datetime.timezone.utc).astimezone().replace(microsecond=0).isoformat()92        else:93            auth_context['expiresAt'] = (datetime.datetime.utcnow() + timedelta(seconds=backend_token['expires_in'])).replace(tzinfo=datetime.timezone.utc).astimezone().replace(microsecond=0).isoformat()94        # Storing the back_end_token in the context of the auth decision so we can map it to Authorization header using the request/response transformation policy95        auth_context['context'] = {'back_end_token': ('Bearer ' + str(backend_token['access_token']))}96    else:97        # API Client token is not active, so we will go ahead and respond with the wwwAuthenticate header98        auth_context['active'] = False99        auth_context['wwwAuthenticate'] = 'Bearer realm=\"identity.oraclecloud.com\"'100    return(auth_context)101def handler(ctx, data: io.BytesIO=None):102    logging.getLogger().info('Entered Handler')103    initContext(dict(ctx.Config()))104      105    auth_context = {}106    try:107        gateway_auth = json.loads(data.getvalue())108        auth_context = getAuthContext(gateway_auth['token'], oauth_apps)109        if (auth_context['active']):110            logging.getLogger().info('Authorizer returning 200...')111            return response.Response(112                ctx,113                response_data=json.dumps(auth_context),114                status_code = 200,115                headers={"Content-Type": "application/json"}116                )117        else:118            logging.getLogger().info('Authorizer returning 401...')119            return response.Response(120                ctx,121                response_data=json.dumps(str(auth_context)),122                status_code = 401,123                headers={"Content-Type": "application/json"}124                )125    except (Exception, ValueError) as ex:126        logging.getLogger().info('error parsing json payload: ' + str(ex))127        return response.Response(128            ctx,129            response_data=json.dumps(str(auth_context)),130            status_code = 401,131            headers={"Content-Type": "application/json"}...

authorization.py

Source:authorization.py

...45* ``group_ids`` (optional): list of group IDs for which the API user has46                            membership if token was for a federated user47"""48LOG = log.getLogger(__name__)49def token_to_auth_context(token):50    if not isinstance(token, token_model.KeystoneToken):51        raise exception.UnexpectedError(_('token reference must be a '52                                          'KeystoneToken type, got: %s') %53                                        type(token))54    auth_context = {'token': token,55                    'is_delegated_auth': False}56    try:57        auth_context['user_id'] = token.user_id58    except KeyError:59        LOG.warning(_LW('RBAC: Invalid user data in token'))60        raise exception.Unauthorized()61    auth_context['user_domain_id'] = token.user_domain_id62    if token.project_scoped:63        auth_context['project_id'] = token.project_id...

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