72 lines
2.9 KiB
Python
72 lines
2.9 KiB
Python
# Copyright 2011 OpenStack Foundation
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# Copyright 2011 Grid Dynamics
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# Copyright 2011 Eldar Nugaev, Kirill Shileev, Ilya Alekseyev
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import re
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import webob
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from nova.api.openstack import common
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from nova.api.openstack.compute.schemas import console_output
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from nova.api.openstack import wsgi
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from nova.api import validation
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from nova.compute import api as compute
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from nova import exception
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from nova.policies import console_output as co_policies
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class ConsoleOutputController(wsgi.Controller):
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def __init__(self):
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super(ConsoleOutputController, self).__init__()
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self.compute_api = compute.API()
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@wsgi.expected_errors((404, 409, 501))
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@wsgi.action('os-getConsoleOutput')
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@validation.schema(console_output.get_console_output)
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def get_console_output(self, req, id, body):
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"""Get text console output."""
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context = req.environ['nova.context']
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instance = common.get_instance(self.compute_api, context, id)
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context.can(co_policies.BASE_POLICY_NAME,
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target={'project_id': instance.project_id})
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length = body['os-getConsoleOutput'].get('length')
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# TODO(cyeoh): In a future API update accept a length of -1
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# as meaning unlimited length (convert to None)
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try:
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output = self.compute_api.get_console_output(context,
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instance,
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length)
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# NOTE(cyeoh): This covers race conditions where the instance is
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# deleted between common.get_instance and get_console_output
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# being called
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except (exception.InstanceNotFound,
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exception.ConsoleNotAvailable) as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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except exception.InstanceNotReady as e:
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raise webob.exc.HTTPConflict(explanation=e.format_message())
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except NotImplementedError:
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common.raise_feature_not_supported()
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# XML output is not correctly escaped, so remove invalid characters
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# NOTE(cyeoh): We don't support XML output with V2.1, but for
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# backwards compatibility reasons we continue to filter the output
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# We should remove this in the future
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remove_re = re.compile('[\x00-\x08\x0B-\x1F]')
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output = remove_re.sub('', output)
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return {'output': output}
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