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# Licensed to the StackStorm, Inc ('StackStorm') under one or more |
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# contributor license agreements. See the NOTICE file distributed with |
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# this work for additional information regarding copyright ownership. |
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# The ASF licenses this file to You under the Apache License, Version 2.0 |
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# (the "License"); you may not use this file except in compliance with |
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# the License. You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import jsonschema |
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import pecan |
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import six |
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from pecan import rest |
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from st2common import log as logging |
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from st2common.models.api.base import jsexpose |
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from st2common.exceptions.db import StackStormDBObjectNotFoundError |
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from st2common.models.api.action import AliasExecutionAPI |
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from st2common.models.api.action import ActionAliasAPI |
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from st2common.models.api.auth import get_system_username |
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from st2common.models.api.execution import ActionExecutionAPI |
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from st2common.models.db.liveaction import LiveActionDB |
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from st2common.models.db.notification import NotificationSchema, NotificationSubSchema |
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from st2common.models.utils import action_alias_utils, action_param_utils |
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from st2common.persistence.actionalias import ActionAlias |
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from st2common.services import action as action_service |
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from st2common.util import action_db as action_utils |
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from st2common.util import reference |
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from st2common.util.api import get_requester |
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from st2common.util.jinja import render_values as render |
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from st2common.rbac.types import PermissionType |
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from st2common.rbac.utils import assert_request_user_has_resource_db_permission |
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http_client = six.moves.http_client |
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LOG = logging.getLogger(__name__) |
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CAST_OVERRIDES = { |
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'array': (lambda cs_x: [v.strip() for v in cs_x.split(',')]) |
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} |
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class ActionAliasExecutionController(rest.RestController): |
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@jsexpose(body_cls=AliasExecutionAPI, status_code=http_client.CREATED) |
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def post(self, payload): |
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action_alias_name = payload.name if payload else None |
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if not action_alias_name: |
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pecan.abort(http_client.BAD_REQUEST, 'Alias execution "name" is required') |
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format_str = payload.format or '' |
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command = payload.command or '' |
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try: |
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action_alias_db = ActionAlias.get_by_name(action_alias_name) |
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except ValueError: |
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action_alias_db = None |
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if not action_alias_db: |
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msg = 'Unable to identify action alias with name "%s".' % (action_alias_name) |
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pecan.abort(http_client.NOT_FOUND, msg) |
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return |
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if not action_alias_db.enabled: |
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msg = 'Action alias with name "%s" is disabled.' % (action_alias_name) |
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pecan.abort(http_client.BAD_REQUEST, msg) |
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return |
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execution_parameters = self._extract_parameters(action_alias_db=action_alias_db, |
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format_str=format_str, |
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param_stream=command) |
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notify = self._get_notify_field(payload) |
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context = { |
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'action_alias_ref': reference.get_ref_from_model(action_alias_db), |
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'api_user': payload.user, |
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'user': get_requester(), |
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'source_channel': payload.source_channel |
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} |
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execution = self._schedule_execution(action_alias_db=action_alias_db, |
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params=execution_parameters, |
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notify=notify, |
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context=context) |
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result = { |
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'execution': execution, |
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'actionalias': ActionAliasAPI.from_model(action_alias_db) |
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} |
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if action_alias_db.ack and 'format' in action_alias_db.ack: |
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result.update({ |
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'message': render({'alias': action_alias_db.ack['format']}, result)['alias'] |
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}) |
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return result |
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def _tokenize_alias_execution(self, alias_execution): |
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tokens = alias_execution.strip().split(' ', 1) |
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return (tokens[0], tokens[1] if len(tokens) > 1 else None) |
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def _extract_parameters(self, action_alias_db, format_str, param_stream): |
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if action_alias_db.formats and format_str in action_alias_db.formats: |
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alias_format = format_str |
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else: |
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alias_format = None |
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parser = action_alias_utils.ActionAliasFormatParser(alias_format=alias_format, |
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param_stream=param_stream) |
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return parser.get_extracted_param_value() |
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def _get_notify_field(self, payload): |
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on_complete = NotificationSubSchema() |
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route = (getattr(payload, 'notification_route', None) or |
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getattr(payload, 'notification_channel', None)) |
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on_complete.routes = [route] |
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on_complete.data = { |
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'user': payload.user, |
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'source_channel': payload.source_channel |
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} |
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notify = NotificationSchema() |
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notify.on_complete = on_complete |
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return notify |
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def _schedule_execution(self, action_alias_db, params, notify, context): |
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action_ref = action_alias_db.action_ref |
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action_db = action_utils.get_action_by_ref(action_ref) |
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if not action_db: |
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raise StackStormDBObjectNotFoundError('Action with ref "%s" not found ' % (action_ref)) |
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assert_request_user_has_resource_db_permission(request=pecan.request, resource_db=action_db, |
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permission_type=PermissionType.ACTION_EXECUTE) |
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try: |
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# prior to shipping off the params cast them to the right type. |
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params = action_param_utils.cast_params(action_ref=action_alias_db.action_ref, |
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params=params, |
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cast_overrides=CAST_OVERRIDES) |
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if not context: |
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context = { |
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'action_alias_ref': reference.get_ref_from_model(action_alias_db), |
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'user': get_system_username() |
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} |
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liveaction = LiveActionDB(action=action_alias_db.action_ref, context=context, |
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parameters=params, notify=notify) |
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_, action_execution_db = action_service.request(liveaction) |
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return ActionExecutionAPI.from_model(action_execution_db) |
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except ValueError as e: |
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LOG.exception('Unable to execute action.') |
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pecan.abort(http_client.BAD_REQUEST, str(e)) |
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except jsonschema.ValidationError as e: |
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LOG.exception('Unable to execute action. Parameter validation failed.') |
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pecan.abort(http_client.BAD_REQUEST, str(e)) |
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except Exception as e: |
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LOG.exception('Unable to execute action. Unexpected error encountered.') |
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pecan.abort(http_client.INTERNAL_SERVER_ERROR, str(e)) |
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StackStorm /
st2
