diff options
Diffstat (limited to 'keystone-moon/keystone/auth/plugins')
| -rw-r--r-- | keystone-moon/keystone/auth/plugins/__init__.py | 15 | ||||
| -rw-r--r-- | keystone-moon/keystone/auth/plugins/core.py | 186 | ||||
| -rw-r--r-- | keystone-moon/keystone/auth/plugins/external.py | 186 | ||||
| -rw-r--r-- | keystone-moon/keystone/auth/plugins/mapped.py | 252 | ||||
| -rw-r--r-- | keystone-moon/keystone/auth/plugins/oauth1.py | 75 | ||||
| -rw-r--r-- | keystone-moon/keystone/auth/plugins/password.py | 49 | ||||
| -rw-r--r-- | keystone-moon/keystone/auth/plugins/saml2.py | 27 | ||||
| -rw-r--r-- | keystone-moon/keystone/auth/plugins/token.py | 99 |
8 files changed, 889 insertions, 0 deletions
diff --git a/keystone-moon/keystone/auth/plugins/__init__.py b/keystone-moon/keystone/auth/plugins/__init__.py new file mode 100644 index 00000000..5da54703 --- /dev/null +++ b/keystone-moon/keystone/auth/plugins/__init__.py @@ -0,0 +1,15 @@ +# Copyright 2015 CERN +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +from keystone.auth.plugins.core import * # noqa diff --git a/keystone-moon/keystone/auth/plugins/core.py b/keystone-moon/keystone/auth/plugins/core.py new file mode 100644 index 00000000..96a5ecf8 --- /dev/null +++ b/keystone-moon/keystone/auth/plugins/core.py @@ -0,0 +1,186 @@ +# Copyright 2013 OpenStack Foundation +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +import sys + +from oslo_config import cfg +from oslo_log import log +import six + +from keystone.common import dependency +from keystone import exception + +CONF = cfg.CONF +LOG = log.getLogger(__name__) + + +def construct_method_map_from_config(): + """Determine authentication method types for deployment. + + :returns: a dictionary containing the methods and their indexes + + """ + method_map = dict() + method_index = 1 + for method in CONF.auth.methods: + method_map[method_index] = method + method_index = method_index * 2 + + return method_map + + +def convert_method_list_to_integer(methods): + """Convert the method type(s) to an integer. + + :param methods: a list of method names + :returns: an integer representing the methods + + """ + method_map = construct_method_map_from_config() + + method_ints = [] + for method in methods: + for k, v in six.iteritems(method_map): + if v == method: + method_ints.append(k) + return sum(method_ints) + + +def convert_integer_to_method_list(method_int): + """Convert an integer to a list of methods. + + :param method_int: an integer representing methods + :returns: a corresponding list of methods + + """ + # If the method_int is 0 then no methods were used so return an empty + # method list + if method_int == 0: + return [] + + method_map = construct_method_map_from_config() + method_ints = [] + for k, v in six.iteritems(method_map): + method_ints.append(k) + method_ints.sort(reverse=True) + + confirmed_methods = [] + for m_int in method_ints: + # (lbragstad): By dividing the method_int by each key in the + # method_map, we know if the division results in an integer of 1, that + # key was used in the construction of the total sum of the method_int. + # In that case, we should confirm the key value and store it so we can + # look it up later. Then we should take the remainder of what is + # confirmed and the method_int and continue the process. In the end, we + # should have a list of integers that correspond to indexes in our + # method_map and we can reinflate the methods that the original + # method_int represents. + if (method_int / m_int) == 1: + confirmed_methods.append(m_int) + method_int = method_int - m_int + + methods = [] + for method in confirmed_methods: + methods.append(method_map[method]) + + return methods + + +@dependency.requires('identity_api', 'resource_api') +class UserAuthInfo(object): + + @staticmethod + def create(auth_payload, method_name): + user_auth_info = UserAuthInfo() + user_auth_info._validate_and_normalize_auth_data(auth_payload) + user_auth_info.METHOD_NAME = method_name + return user_auth_info + + def __init__(self): + self.user_id = None + self.password = None + self.user_ref = None + self.METHOD_NAME = None + + def _assert_domain_is_enabled(self, domain_ref): + try: + self.resource_api.assert_domain_enabled( + domain_id=domain_ref['id'], + domain=domain_ref) + except AssertionError as e: + LOG.warning(six.text_type(e)) + six.reraise(exception.Unauthorized, exception.Unauthorized(e), + sys.exc_info()[2]) + + def _assert_user_is_enabled(self, user_ref): + try: + self.identity_api.assert_user_enabled( + user_id=user_ref['id'], + user=user_ref) + except AssertionError as e: + LOG.warning(six.text_type(e)) + six.reraise(exception.Unauthorized, exception.Unauthorized(e), + sys.exc_info()[2]) + + def _lookup_domain(self, domain_info): + domain_id = domain_info.get('id') + domain_name = domain_info.get('name') + domain_ref = None + if not domain_id and not domain_name: + raise exception.ValidationError(attribute='id or name', + target='domain') + try: + if domain_name: + domain_ref = self.resource_api.get_domain_by_name( + domain_name) + else: + domain_ref = self.resource_api.get_domain(domain_id) + except exception.DomainNotFound as e: + LOG.exception(six.text_type(e)) + raise exception.Unauthorized(e) + self._assert_domain_is_enabled(domain_ref) + return domain_ref + + def _validate_and_normalize_auth_data(self, auth_payload): + if 'user' not in auth_payload: + raise exception.ValidationError(attribute='user', + target=self.METHOD_NAME) + user_info = auth_payload['user'] + user_id = user_info.get('id') + user_name = user_info.get('name') + user_ref = None + if not user_id and not user_name: + raise exception.ValidationError(attribute='id or name', + target='user') + self.password = user_info.get('password') + try: + if user_name: + if 'domain' not in user_info: + raise exception.ValidationError(attribute='domain', + target='user') + domain_ref = self._lookup_domain(user_info['domain']) + user_ref = self.identity_api.get_user_by_name( + user_name, domain_ref['id']) + else: + user_ref = self.identity_api.get_user(user_id) + domain_ref = self.resource_api.get_domain( + user_ref['domain_id']) + self._assert_domain_is_enabled(domain_ref) + except exception.UserNotFound as e: + LOG.exception(six.text_type(e)) + raise exception.Unauthorized(e) + self._assert_user_is_enabled(user_ref) + self.user_ref = user_ref + self.user_id = user_ref['id'] + self.domain_id = domain_ref['id'] diff --git a/keystone-moon/keystone/auth/plugins/external.py b/keystone-moon/keystone/auth/plugins/external.py new file mode 100644 index 00000000..2322649f --- /dev/null +++ b/keystone-moon/keystone/auth/plugins/external.py @@ -0,0 +1,186 @@ +# Copyright 2013 OpenStack Foundation +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +"""Keystone External Authentication Plugins""" + +import abc + +from oslo_config import cfg +import six + +from keystone import auth +from keystone.common import dependency +from keystone import exception +from keystone.i18n import _ +from keystone.openstack.common import versionutils + + +CONF = cfg.CONF + + +@six.add_metaclass(abc.ABCMeta) +class Base(auth.AuthMethodHandler): + + method = 'external' + + def authenticate(self, context, auth_info, auth_context): + """Use REMOTE_USER to look up the user in the identity backend. + + auth_context is an in-out variable that will be updated with the + user_id from the actual user from the REMOTE_USER env variable. + """ + try: + REMOTE_USER = context['environment']['REMOTE_USER'] + except KeyError: + msg = _('No authenticated user') + raise exception.Unauthorized(msg) + try: + user_ref = self._authenticate(REMOTE_USER, context) + auth_context['user_id'] = user_ref['id'] + if ('kerberos' in CONF.token.bind and + (context['environment'].get('AUTH_TYPE', '').lower() + == 'negotiate')): + auth_context['bind']['kerberos'] = user_ref['name'] + except Exception: + msg = _('Unable to lookup user %s') % (REMOTE_USER) + raise exception.Unauthorized(msg) + + @abc.abstractmethod + def _authenticate(self, remote_user, context): + """Look up the user in the identity backend. + + Return user_ref + """ + pass + + +@dependency.requires('identity_api') +class DefaultDomain(Base): + def _authenticate(self, remote_user, context): + """Use remote_user to look up the user in the identity backend.""" + domain_id = CONF.identity.default_domain_id + user_ref = self.identity_api.get_user_by_name(remote_user, domain_id) + return user_ref + + +@dependency.requires('identity_api', 'resource_api') +class Domain(Base): + def _authenticate(self, remote_user, context): + """Use remote_user to look up the user in the identity backend. + + The domain will be extracted from the REMOTE_DOMAIN environment + variable if present. If not, the default domain will be used. + """ + + username = remote_user + try: + domain_name = context['environment']['REMOTE_DOMAIN'] + except KeyError: + domain_id = CONF.identity.default_domain_id + else: + domain_ref = self.resource_api.get_domain_by_name(domain_name) + domain_id = domain_ref['id'] + + user_ref = self.identity_api.get_user_by_name(username, domain_id) + return user_ref + + +@dependency.requires('assignment_api', 'identity_api') +class KerberosDomain(Domain): + """Allows `kerberos` as a method.""" + method = 'kerberos' + + def _authenticate(self, remote_user, context): + auth_type = context['environment'].get('AUTH_TYPE') + if auth_type != 'Negotiate': + raise exception.Unauthorized(_("auth_type is not Negotiate")) + return super(KerberosDomain, self)._authenticate(remote_user, context) + + +class ExternalDefault(DefaultDomain): + """Deprecated. Please use keystone.auth.external.DefaultDomain instead.""" + + @versionutils.deprecated( + as_of=versionutils.deprecated.ICEHOUSE, + in_favor_of='keystone.auth.external.DefaultDomain', + remove_in=+1) + def __init__(self): + super(ExternalDefault, self).__init__() + + +class ExternalDomain(Domain): + """Deprecated. Please use keystone.auth.external.Domain instead.""" + + @versionutils.deprecated( + as_of=versionutils.deprecated.ICEHOUSE, + in_favor_of='keystone.auth.external.Domain', + remove_in=+1) + def __init__(self): + super(ExternalDomain, self).__init__() + + +@dependency.requires('identity_api') +class LegacyDefaultDomain(Base): + """Deprecated. Please use keystone.auth.external.DefaultDomain instead. + + This plugin exists to provide compatibility for the unintended behavior + described here: https://bugs.launchpad.net/keystone/+bug/1253484 + + """ + + @versionutils.deprecated( + as_of=versionutils.deprecated.ICEHOUSE, + in_favor_of='keystone.auth.external.DefaultDomain', + remove_in=+1) + def __init__(self): + super(LegacyDefaultDomain, self).__init__() + + def _authenticate(self, remote_user, context): + """Use remote_user to look up the user in the identity backend.""" + # NOTE(dolph): this unintentionally discards half the REMOTE_USER value + names = remote_user.split('@') + username = names.pop(0) + domain_id = CONF.identity.default_domain_id + user_ref = self.identity_api.get_user_by_name(username, domain_id) + return user_ref + + +@dependency.requires('identity_api', 'resource_api') +class LegacyDomain(Base): + """Deprecated. Please use keystone.auth.external.Domain instead.""" + + @versionutils.deprecated( + as_of=versionutils.deprecated.ICEHOUSE, + in_favor_of='keystone.auth.external.Domain', + remove_in=+1) + def __init__(self): + super(LegacyDomain, self).__init__() + + def _authenticate(self, remote_user, context): + """Use remote_user to look up the user in the identity backend. + + If remote_user contains an `@` assume that the substring before the + rightmost `@` is the username, and the substring after the @ is the + domain name. + """ + names = remote_user.rsplit('@', 1) + username = names.pop(0) + if names: + domain_name = names[0] + domain_ref = self.resource_api.get_domain_by_name(domain_name) + domain_id = domain_ref['id'] + else: + domain_id = CONF.identity.default_domain_id + user_ref = self.identity_api.get_user_by_name(username, domain_id) + return user_ref diff --git a/keystone-moon/keystone/auth/plugins/mapped.py b/keystone-moon/keystone/auth/plugins/mapped.py new file mode 100644 index 00000000..abf44481 --- /dev/null +++ b/keystone-moon/keystone/auth/plugins/mapped.py @@ -0,0 +1,252 @@ +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +import functools + +from oslo_log import log +from oslo_serialization import jsonutils +from pycadf import cadftaxonomy as taxonomy +from six.moves.urllib import parse + +from keystone import auth +from keystone.auth import plugins as auth_plugins +from keystone.common import dependency +from keystone.contrib import federation +from keystone.contrib.federation import utils +from keystone import exception +from keystone.i18n import _ +from keystone.models import token_model +from keystone import notifications + + +LOG = log.getLogger(__name__) + +METHOD_NAME = 'mapped' + + +@dependency.requires('assignment_api', 'federation_api', 'identity_api', + 'token_provider_api') +class Mapped(auth.AuthMethodHandler): + + def _get_token_ref(self, auth_payload): + token_id = auth_payload['id'] + response = self.token_provider_api.validate_token(token_id) + return token_model.KeystoneToken(token_id=token_id, + token_data=response) + + def authenticate(self, context, auth_payload, auth_context): + """Authenticate mapped user and return an authentication context. + + :param context: keystone's request context + :param auth_payload: the content of the authentication for a + given method + :param auth_context: user authentication context, a dictionary + shared by all plugins. + + In addition to ``user_id`` in ``auth_context``, this plugin sets + ``group_ids``, ``OS-FEDERATION:identity_provider`` and + ``OS-FEDERATION:protocol`` + + """ + + if 'id' in auth_payload: + token_ref = self._get_token_ref(auth_payload) + handle_scoped_token(context, auth_payload, auth_context, token_ref, + self.federation_api, + self.identity_api, + self.token_provider_api) + else: + handle_unscoped_token(context, auth_payload, auth_context, + self.assignment_api, self.federation_api, + self.identity_api) + + +def handle_scoped_token(context, auth_payload, auth_context, token_ref, + federation_api, identity_api, token_provider_api): + utils.validate_expiration(token_ref) + token_audit_id = token_ref.audit_id + identity_provider = token_ref.federation_idp_id + protocol = token_ref.federation_protocol_id + user_id = token_ref.user_id + group_ids = token_ref.federation_group_ids + send_notification = functools.partial( + notifications.send_saml_audit_notification, 'authenticate', + context, user_id, group_ids, identity_provider, protocol, + token_audit_id) + + utils.assert_enabled_identity_provider(federation_api, identity_provider) + + try: + mapping = federation_api.get_mapping_from_idp_and_protocol( + identity_provider, protocol) + utils.validate_groups(group_ids, mapping['id'], identity_api) + + except Exception: + # NOTE(topol): Diaper defense to catch any exception, so we can + # send off failed authentication notification, raise the exception + # after sending the notification + send_notification(taxonomy.OUTCOME_FAILURE) + raise + else: + send_notification(taxonomy.OUTCOME_SUCCESS) + + auth_context['user_id'] = user_id + auth_context['group_ids'] = group_ids + auth_context[federation.IDENTITY_PROVIDER] = identity_provider + auth_context[federation.PROTOCOL] = protocol + + +def handle_unscoped_token(context, auth_payload, auth_context, + assignment_api, federation_api, identity_api): + + def is_ephemeral_user(mapped_properties): + return mapped_properties['user']['type'] == utils.UserType.EPHEMERAL + + def build_ephemeral_user_context(auth_context, user, mapped_properties, + identity_provider, protocol): + auth_context['user_id'] = user['id'] + auth_context['group_ids'] = mapped_properties['group_ids'] + auth_context[federation.IDENTITY_PROVIDER] = identity_provider + auth_context[federation.PROTOCOL] = protocol + + def build_local_user_context(auth_context, mapped_properties): + user_info = auth_plugins.UserAuthInfo.create(mapped_properties, + METHOD_NAME) + auth_context['user_id'] = user_info.user_id + + assertion = extract_assertion_data(context) + identity_provider = auth_payload['identity_provider'] + protocol = auth_payload['protocol'] + + utils.assert_enabled_identity_provider(federation_api, identity_provider) + + group_ids = None + # NOTE(topol): The user is coming in from an IdP with a SAML assertion + # instead of from a token, so we set token_id to None + token_id = None + # NOTE(marek-denis): This variable is set to None and there is a + # possibility that it will be used in the CADF notification. This means + # operation will not be mapped to any user (even ephemeral). + user_id = None + + try: + mapped_properties = apply_mapping_filter( + identity_provider, protocol, assertion, assignment_api, + federation_api, identity_api) + + if is_ephemeral_user(mapped_properties): + user = setup_username(context, mapped_properties) + user_id = user['id'] + group_ids = mapped_properties['group_ids'] + mapping = federation_api.get_mapping_from_idp_and_protocol( + identity_provider, protocol) + utils.validate_groups_cardinality(group_ids, mapping['id']) + build_ephemeral_user_context(auth_context, user, + mapped_properties, + identity_provider, protocol) + else: + build_local_user_context(auth_context, mapped_properties) + + except Exception: + # NOTE(topol): Diaper defense to catch any exception, so we can + # send off failed authentication notification, raise the exception + # after sending the notification + outcome = taxonomy.OUTCOME_FAILURE + notifications.send_saml_audit_notification('authenticate', context, + user_id, group_ids, + identity_provider, + protocol, token_id, + outcome) + raise + else: + outcome = taxonomy.OUTCOME_SUCCESS + notifications.send_saml_audit_notification('authenticate', context, + user_id, group_ids, + identity_provider, + protocol, token_id, + outcome) + + +def extract_assertion_data(context): + assertion = dict(utils.get_assertion_params_from_env(context)) + return assertion + + +def apply_mapping_filter(identity_provider, protocol, assertion, + assignment_api, federation_api, identity_api): + idp = federation_api.get_idp(identity_provider) + utils.validate_idp(idp, assertion) + mapping = federation_api.get_mapping_from_idp_and_protocol( + identity_provider, protocol) + rules = jsonutils.loads(mapping['rules']) + LOG.debug('using the following rules: %s', rules) + rule_processor = utils.RuleProcessor(rules) + mapped_properties = rule_processor.process(assertion) + + # NOTE(marek-denis): We update group_ids only here to avoid fetching + # groups identified by name/domain twice. + # NOTE(marek-denis): Groups are translated from name/domain to their + # corresponding ids in the auth plugin, as we need information what + # ``mapping_id`` was used as well as idenity_api and assignment_api + # objects. + group_ids = mapped_properties['group_ids'] + utils.validate_groups_in_backend(group_ids, + mapping['id'], + identity_api) + group_ids.extend( + utils.transform_to_group_ids( + mapped_properties['group_names'], mapping['id'], + identity_api, assignment_api)) + mapped_properties['group_ids'] = list(set(group_ids)) + return mapped_properties + + +def setup_username(context, mapped_properties): + """Setup federated username. + + Function covers all the cases for properly setting user id, a primary + identifier for identity objects. Initial version of the mapping engine + assumed user is identified by ``name`` and his ``id`` is built from the + name. We, however need to be able to accept local rules that identify user + by either id or name/domain. + + The following use-cases are covered: + + 1) If neither user_name nor user_id is set raise exception.Unauthorized + 2) If user_id is set and user_name not, set user_name equal to user_id + 3) If user_id is not set and user_name is, set user_id as url safe version + of user_name. + + :param context: authentication context + :param mapped_properties: Properties issued by a RuleProcessor. + :type: dictionary + + :raises: exception.Unauthorized + :returns: dictionary with user identification + :rtype: dict + + """ + user = mapped_properties['user'] + + user_id = user.get('id') + user_name = user.get('name') or context['environment'].get('REMOTE_USER') + + if not any([user_id, user_name]): + raise exception.Unauthorized(_("Could not map user")) + + elif not user_name: + user['name'] = user_id + + elif not user_id: + user['id'] = parse.quote(user_name) + + return user diff --git a/keystone-moon/keystone/auth/plugins/oauth1.py b/keystone-moon/keystone/auth/plugins/oauth1.py new file mode 100644 index 00000000..2f1cc2fa --- /dev/null +++ b/keystone-moon/keystone/auth/plugins/oauth1.py @@ -0,0 +1,75 @@ +# Copyright 2013 OpenStack Foundation +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +from oslo_log import log +from oslo_utils import timeutils + +from keystone import auth +from keystone.common import controller +from keystone.common import dependency +from keystone.contrib.oauth1 import core as oauth +from keystone.contrib.oauth1 import validator +from keystone import exception +from keystone.i18n import _ + + +LOG = log.getLogger(__name__) + + +@dependency.requires('oauth_api') +class OAuth(auth.AuthMethodHandler): + + method = 'oauth1' + + def authenticate(self, context, auth_info, auth_context): + """Turn a signed request with an access key into a keystone token.""" + + if not self.oauth_api: + raise exception.Unauthorized(_('%s not supported') % self.method) + + headers = context['headers'] + oauth_headers = oauth.get_oauth_headers(headers) + access_token_id = oauth_headers.get('oauth_token') + + if not access_token_id: + raise exception.ValidationError( + attribute='oauth_token', target='request') + + acc_token = self.oauth_api.get_access_token(access_token_id) + + expires_at = acc_token['expires_at'] + if expires_at: + now = timeutils.utcnow() + expires = timeutils.normalize_time( + timeutils.parse_isotime(expires_at)) + if now > expires: + raise exception.Unauthorized(_('Access token is expired')) + + url = controller.V3Controller.base_url(context, context['path']) + access_verifier = oauth.ResourceEndpoint( + request_validator=validator.OAuthValidator(), + token_generator=oauth.token_generator) + result, request = access_verifier.validate_protected_resource_request( + url, + http_method='POST', + body=context['query_string'], + headers=headers, + realms=None + ) + if not result: + msg = _('Could not validate the access token') + raise exception.Unauthorized(msg) + auth_context['user_id'] = acc_token['authorizing_user_id'] + auth_context['access_token_id'] = access_token_id + auth_context['project_id'] = acc_token['project_id'] diff --git a/keystone-moon/keystone/auth/plugins/password.py b/keystone-moon/keystone/auth/plugins/password.py new file mode 100644 index 00000000..c5770445 --- /dev/null +++ b/keystone-moon/keystone/auth/plugins/password.py @@ -0,0 +1,49 @@ +# Copyright 2013 OpenStack Foundation +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +from oslo_log import log + +from keystone import auth +from keystone.auth import plugins as auth_plugins +from keystone.common import dependency +from keystone import exception +from keystone.i18n import _ + +METHOD_NAME = 'password' + +LOG = log.getLogger(__name__) + + +@dependency.requires('identity_api') +class Password(auth.AuthMethodHandler): + + method = METHOD_NAME + + def authenticate(self, context, auth_payload, auth_context): + """Try to authenticate against the identity backend.""" + user_info = auth_plugins.UserAuthInfo.create(auth_payload, self.method) + + # FIXME(gyee): identity.authenticate() can use some refactoring since + # all we care is password matches + try: + self.identity_api.authenticate( + context, + user_id=user_info.user_id, + password=user_info.password) + except AssertionError: + # authentication failed because of invalid username or password + msg = _('Invalid username or password') + raise exception.Unauthorized(msg) + + auth_context['user_id'] = user_info.user_id diff --git a/keystone-moon/keystone/auth/plugins/saml2.py b/keystone-moon/keystone/auth/plugins/saml2.py new file mode 100644 index 00000000..744f26a9 --- /dev/null +++ b/keystone-moon/keystone/auth/plugins/saml2.py @@ -0,0 +1,27 @@ +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +from keystone.auth.plugins import mapped + +""" Provide an entry point to authenticate with SAML2 + +This plugin subclasses mapped.Mapped, and may be specified in keystone.conf: + + [auth] + methods = external,password,token,saml2 + saml2 = keystone.auth.plugins.mapped.Mapped +""" + + +class Saml2(mapped.Mapped): + + method = 'saml2' diff --git a/keystone-moon/keystone/auth/plugins/token.py b/keystone-moon/keystone/auth/plugins/token.py new file mode 100644 index 00000000..5ca0b257 --- /dev/null +++ b/keystone-moon/keystone/auth/plugins/token.py @@ -0,0 +1,99 @@ +# Copyright 2013 OpenStack Foundation +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +from oslo_config import cfg +from oslo_log import log +import six + +from keystone import auth +from keystone.auth.plugins import mapped +from keystone.common import dependency +from keystone.common import wsgi +from keystone import exception +from keystone.i18n import _ +from keystone.models import token_model + + +LOG = log.getLogger(__name__) + +CONF = cfg.CONF + + +@dependency.requires('federation_api', 'identity_api', 'token_provider_api') +class Token(auth.AuthMethodHandler): + + method = 'token' + + def _get_token_ref(self, auth_payload): + token_id = auth_payload['id'] + response = self.token_provider_api.validate_token(token_id) + return token_model.KeystoneToken(token_id=token_id, + token_data=response) + + def authenticate(self, context, auth_payload, user_context): + if 'id' not in auth_payload: + raise exception.ValidationError(attribute='id', + target=self.method) + token_ref = self._get_token_ref(auth_payload) + if token_ref.is_federated_user and self.federation_api: + mapped.handle_scoped_token( + context, auth_payload, user_context, token_ref, + self.federation_api, self.identity_api, + self.token_provider_api) + else: + token_authenticate(context, auth_payload, user_context, token_ref) + + +def token_authenticate(context, auth_payload, user_context, token_ref): + try: + + # Do not allow tokens used for delegation to + # create another token, or perform any changes of + # state in Keystone. To do so is to invite elevation of + # privilege attacks + + if token_ref.oauth_scoped or token_ref.trust_scoped: + raise exception.Forbidden() + + if not CONF.token.allow_rescope_scoped_token: + # Do not allow conversion from scoped tokens. + if token_ref.project_scoped or token_ref.domain_scoped: + raise exception.Forbidden(action=_("rescope a scoped token")) + + wsgi.validate_token_bind(context, token_ref) + + # New tokens maintain the audit_id of the original token in the + # chain (if possible) as the second element in the audit data + # structure. Look for the last element in the audit data structure + # which will be either the audit_id of the token (in the case of + # a token that has not been rescoped) or the audit_chain id (in + # the case of a token that has been rescoped). + try: + token_audit_id = token_ref.get('audit_ids', [])[-1] + except IndexError: + # NOTE(morganfainberg): In the case this is a token that was + # issued prior to audit id existing, the chain is not tracked. + token_audit_id = None + + user_context.setdefault('expires_at', token_ref.expires) + user_context['audit_id'] = token_audit_id + user_context.setdefault('user_id', token_ref.user_id) + # TODO(morganfainberg: determine if token 'extras' can be removed + # from the user_context + user_context['extras'].update(token_ref.get('extras', {})) + user_context['method_names'].extend(token_ref.methods) + + except AssertionError as e: + LOG.error(six.text_type(e)) + raise exception.Unauthorized(e) |