99 lines
3.8 KiB
Python
99 lines
3.8 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 extensions
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from nova.api.openstack import wsgi
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from nova import compute
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from nova import exception
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from nova.i18n import _
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authorize = extensions.extension_authorizer('compute', 'console_output')
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class ConsoleOutputController(wsgi.Controller):
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def __init__(self, *args, **kwargs):
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super(ConsoleOutputController, self).__init__(*args, **kwargs)
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self.compute_api = compute.API()
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@wsgi.action('os-getConsoleOutput')
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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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authorize(context)
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try:
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instance = self.compute_api.get(context, id,
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want_objects=True)
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except exception.NotFound:
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msg = _('Instance not found')
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raise webob.exc.HTTPNotFound(explanation=msg)
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try:
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length = body['os-getConsoleOutput'].get('length')
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except (TypeError, KeyError):
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raise webob.exc.HTTPBadRequest(_('os-getConsoleOutput malformed '
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'or missing from request body'))
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if length is not None:
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try:
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# NOTE(maurosr): cast length into a string before cast into an
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# integer to avoid thing like: int(2.5) which is 2 instead of
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# raise ValueError like it would when we try int("2.5"). This
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# can be removed once we have api validation landed.
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int(str(length))
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except ValueError:
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raise webob.exc.HTTPBadRequest(_('Length in request body must '
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'be an integer value'))
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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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except exception.NotFound:
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msg = _('Unable to get console')
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raise webob.exc.HTTPNotFound(explanation=msg)
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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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msg = _("Unable to get console log, functionality not implemented")
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raise webob.exc.HTTPNotImplemented(explanation=msg)
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# XML output is not correctly escaped, so remove invalid characters
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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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class Console_output(extensions.ExtensionDescriptor):
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"""Console log output support, with tailing ability."""
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name = "ConsoleOutput"
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alias = "os-console-output"
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namespace = ("http://docs.openstack.org/compute/ext/"
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"os-console-output/api/v2")
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updated = "2011-12-08T00:00:00Z"
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def get_controller_extensions(self):
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controller = ConsoleOutputController()
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extension = extensions.ControllerExtension(self, 'servers', controller)
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return [extension]
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