# Copyright (c) 2015, Telefonica I+D. # # 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 six from oslo_db import exception as db_exc from oslo_log import log as logging from webob import exc from murano.api.v1 import request_statistics from murano.common.i18n import _, _LE from murano.common import policy from murano.common import utils from murano.common import wsgi from murano.db.models import EnvironmentTemplate from murano.db.services import core_services from murano.db.services import environment_templates as env_temps from murano.db.services import environments as envs from murano.db.services import sessions LOG = logging.getLogger(__name__) API_NAME = 'Templates' class Controller(object): @request_statistics.stats_count(API_NAME, 'Index') def index(self, request): """It lists the env templates associated to an tenant-id. :param request: The operation request. :return: the env template description list. """ LOG.debug('EnvTemplates:List') policy.check('list_env_templates', request.context) tenant_id = request.context.tenant filters = {} if request.GET.get('is_public'): is_public = request.GET.get('is_public', 'false').lower() == 'true' if not is_public: filters['is_public'] = False filters = {'tenant_id': tenant_id} elif is_public: filters['is_public'] = True list_templates = env_temps.EnvTemplateServices.\ get_env_templates_by(filters) else: filters = (EnvironmentTemplate.is_public is True, EnvironmentTemplate.tenant_id == tenant_id) list_templates = env_temps.EnvTemplateServices.\ get_env_templates_or_by(filters) list_templates = [temp.to_dict() for temp in list_templates] return {"templates": list_templates} @request_statistics.stats_count(API_NAME, 'Create') def create(self, request, body): """It creates the env template from the payload obtaining. This payload can contain just the template name, or include also service information. :param request: the operation request. :param body: the env template description :return: the description of the created template. """ LOG.debug('EnvTemplates:Create '.format(body=body)) policy.check('create_env_template', request.context) self._validate_body_name(body) try: LOG.debug('ENV TEMP NAME: {templ_name}>'. format(templ_name=body['name'])) template = env_temps.EnvTemplateServices.create( body.copy(), request.context.tenant) return template.to_dict() except db_exc.DBDuplicateEntry: msg = _('Env Template with specified name already exists') LOG.exception(msg) raise exc.HTTPConflict(msg) @request_statistics.stats_count(API_NAME, 'Show') def show(self, request, env_template_id): """It shows the description about a template. :param request: the operation request. :param env_template_id: the env template ID. :return: the description of the env template. """ LOG.debug('Templates:Show '.format( templ_id=env_template_id)) target = {"env_template_id": env_template_id} policy.check('show_env_template', request.context, target) self._validate_request(request, env_template_id) template = env_temps.EnvTemplateServices.\ get_env_template(env_template_id) temp = template.to_dict() get_data = core_services.CoreServices.get_template_data temp['services'] = get_data(env_template_id, '/services') return temp @request_statistics.stats_count(API_NAME, 'Update') def update(self, request, env_template_id, body): """It updates the description template. :param request: the operation request. :param env_template_id: the env template ID. :param body: the description to be updated :return: the updated template description. """ LOG.debug('Templates:Update '.format(templ_id=env_template_id, body=body)) target = {"env_template_id": env_template_id} policy.check('update_env_template', request.context, target) self._validate_request(request, env_template_id) try: LOG.debug('ENV TEMP NAME: {temp_name}>'.format( temp_name=body['name'])) if not str(body['name']).strip(): msg = _('Environment Template must contain at least one ' 'non-white space symbol') LOG.exception(msg) raise exc.HTTPBadRequest(msg) except Exception: msg = _('EnvTemplate body is incorrect') LOG.exception(msg) raise exc.HTTPBadRequest(msg) template = env_temps.EnvTemplateServices.update(env_template_id, body) return template.to_dict() @request_statistics.stats_count(API_NAME, 'Delete') def delete(self, request, env_template_id): """It deletes the env template. :param request: the operation request. :param env_template_id: the template ID. """ LOG.debug('EnvTemplates:Delete '.format( templ_id=env_template_id)) target = {"env_template_id": env_template_id} policy.check('delete_env_template', request.context, target) self._validate_request(request, env_template_id) env_temps.EnvTemplateServices.delete(env_template_id) env_temps.EnvTemplateServices.remove(env_template_id) return def has_services(self, template): """"It checks if the template has services :param template: the template to check. :return: True or False """ if not template.description: return False if (template.description.get('services')): return True return False @request_statistics.stats_count(API_NAME, 'Create_environment') def create_environment(self, request, env_template_id, body): """Creates environment and session from template. :param request: operation request :param env_template_id: environment template ID :param body: the environment name :return: session_id and environment_id """ target = {"env_template_id": env_template_id} policy.check('create_environment', request.context, target) self._validate_request(request, env_template_id) LOG.debug('Templates:Create environment '. format(templ_id=env_template_id)) template = env_temps.EnvTemplateServices.\ get_env_template(env_template_id) self._validate_body_name(body) try: environment = envs.EnvironmentServices.create( body.copy(), request.context) except db_exc.DBDuplicateEntry: msg = _('Environment with specified name already exists') LOG.exception(msg) raise exc.HTTPConflict(explanation=msg) user_id = request.context.user session = sessions.SessionServices.create(environment.id, user_id) if self.has_services(template): services_node = utils.TraverseHelper.get("services", template.description) utils.TraverseHelper.update("/Objects/services", services_node, environment.description) envs.EnvironmentServices.save_environment_description( session.id, environment.description, inner=False ) return {"session_id": session.id, "environment_id": environment.id} @request_statistics.stats_count(API_NAME, 'Clone') def clone(self, request, env_template_id, body): """It clones the env template from another env template from other tenant. :param request: the operation request. :param env_template_id: the env template ID. :param body: the request body. :return: the description of the created template. """ LOG.debug('EnvTemplates:Clone '. format(body, env_template_id)) policy.check('clone_env_template', request.context) old_env_template = self._validate_exists(env_template_id) if not old_env_template.get('is_public'): msg = _LE('User has no access to these resources.') LOG.error(msg) raise exc.HTTPForbidden(explanation=msg) self._validate_body_name(body) LOG.debug('ENV TEMP NAME: {0}'.format(body['name'])) try: is_public = body.get('is_public', False) template = env_temps.EnvTemplateServices.clone( env_template_id, request.context.tenant, body['name'], is_public) except db_exc.DBDuplicateEntry: msg = _('Environment with specified name already exists') LOG.error(msg) raise exc.HTTPConflict(explanation=msg) return template.to_dict() def _validate_request(self, request, env_template_id): self._validate_exists(env_template_id) get_env_template = env_temps.EnvTemplateServices.get_env_template env_template = get_env_template(env_template_id) if env_template.is_public or request.context.is_admin: return if env_template.tenant_id != request.context.tenant: msg = _LE('User has no access to these resources.') LOG.error(msg) raise exc.HTTPForbidden(explanation=msg) def _validate_exists(self, env_template_id): env_template_exists = env_temps.EnvTemplateServices.env_template_exist if not env_template_exists(env_template_id): msg = _('EnvTemplate is not found').format( temp_id=env_template_id) LOG.error(msg) raise exc.HTTPNotFound(explanation=msg) get_env_template = env_temps.EnvTemplateServices.get_env_template return get_env_template(env_template_id) def _validate_body_name(self, body): if not('name' in body and body['name'].strip()): msg = _('Please, specify a name of the environment template.') LOG.exception(msg) raise exc.HTTPBadRequest(explanation=msg) name = six.text_type(body['name']) if len(name) > 255: msg = _('Environment template name should be 255 characters ' 'maximum') LOG.exception(msg) raise exc.HTTPBadRequest(explanation=msg) def create_resource(): return wsgi.Resource(Controller())