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# Copyright 2011 OpenStack Foundation
# All Rights Reserved.
#
# 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.
"""Keypair management extension."""
import webob
import webob.exc
from nova.api.openstack.compute.schemas.v3 import keypairs_schema
from nova.api.openstack import extensions
from nova.api.openstack import wsgi
from nova.api import validation
from nova.compute import api as compute_api
from nova import exception
from nova.openstack.common.gettextutils import _
ALIAS = 'keypairs'
authorize = extensions.extension_authorizer('compute', 'v3:' + ALIAS)
soft_authorize = extensions.soft_extension_authorizer('compute', 'v3:' + ALIAS)
class KeypairController(object):
"""Keypair API controller for the OpenStack API."""
def __init__(self):
self.api = compute_api.KeypairAPI()
def _filter_keypair(self, keypair, **attrs):
clean = {
'name': keypair.name,
'public_key': keypair.public_key,
'fingerprint': keypair.fingerprint,
}
for attr in attrs:
clean[attr] = keypair[attr]
return clean
@extensions.expected_errors((400, 409, 413))
@wsgi.response(201)
@validation.schema(request_body_schema=keypairs_schema.create)
def create(self, req, body):
"""
Create or import keypair.
Sending name will generate a key and return private_key
and fingerprint.
You can send a public_key to add an existing ssh key
params: keypair object with:
name (required) - string
public_key (optional) - string
"""
context = req.environ['nova.context']
authorize(context, action='create')
params = body['keypair']
name = params['name']
try:
if 'public_key' in params:
keypair = self.api.import_key_pair(context,
context.user_id, name,
params['public_key'])
keypair = self._filter_keypair(keypair, user_id=True)
else:
keypair, private_key = self.api.create_key_pair(
context, context.user_id, name)
keypair = self._filter_keypair(keypair, user_id=True)
keypair['private_key'] = private_key
return {'keypair': keypair}
except exception.KeypairLimitExceeded:
msg = _("Quota exceeded, too many key pairs.")
raise webob.exc.HTTPRequestEntityTooLarge(
explanation=msg,
headers={'Retry-After': 0})
except exception.InvalidKeypair as exc:
raise webob.exc.HTTPBadRequest(explanation=exc.format_message())
except exception.KeyPairExists as exc:
raise webob.exc.HTTPConflict(explanation=exc.format_message())
@wsgi.response(204)
@extensions.expected_errors(404)
def delete(self, req, id):
"""
Delete a keypair with a given name
"""
context = req.environ['nova.context']
authorize(context, action='delete')
try:
self.api.delete_key_pair(context, context.user_id, id)
except exception.KeypairNotFound:
raise webob.exc.HTTPNotFound()
@extensions.expected_errors(404)
def show(self, req, id):
"""Return data for the given key name."""
context = req.environ['nova.context']
authorize(context, action='show')
try:
keypair = self.api.get_key_pair(context, context.user_id, id)
except exception.KeypairNotFound:
raise webob.exc.HTTPNotFound()
return {'keypair': self._filter_keypair(keypair)}
@extensions.expected_errors(())
def index(self, req):
"""
List of keypairs for a user
"""
context = req.environ['nova.context']
authorize(context, action='index')
key_pairs = self.api.get_key_pairs(context, context.user_id)
rval = []
for key_pair in key_pairs:
rval.append({'keypair': self._filter_keypair(key_pair)})
return {'keypairs': rval}
class Controller(wsgi.Controller):
def _add_key_name(self, req, servers):
for server in servers:
db_server = req.get_db_instance(server['id'])
# server['id'] is guaranteed to be in the cache due to
# the core API adding it in its 'show'/'detail' methods.
server['key_name'] = db_server['key_name']
def _show(self, req, resp_obj):
if 'server' in resp_obj.obj:
server = resp_obj.obj['server']
self._add_key_name(req, [server])
@wsgi.extends
def show(self, req, resp_obj, id):
context = req.environ['nova.context']
if soft_authorize(context):
self._show(req, resp_obj)
@wsgi.extends
def detail(self, req, resp_obj):
context = req.environ['nova.context']
if 'servers' in resp_obj.obj and soft_authorize(context):
servers = resp_obj.obj['servers']
self._add_key_name(req, servers)
class Keypairs(extensions.V3APIExtensionBase):
"""Keypair Support."""
name = "Keypairs"
alias = ALIAS
version = 1
def get_resources(self):
resources = [
extensions.ResourceExtension('keypairs',
KeypairController())]
return resources
def get_controller_extensions(self):
controller = Controller()
extension = extensions.ControllerExtension(self, 'servers', controller)
return [extension]
# use nova.api.extensions.server.extensions entry point to modify
# server create kwargs
def server_create(self, server_dict, create_kwargs):
create_kwargs['key_name'] = server_dict.get('key_name')
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