81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 Cloudbase Solutions Srl
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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 posixpath
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import urllib
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import urllib2
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from cloudbaseinit.metadata.services.base import *
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from cloudbaseinit.openstack.common import cfg
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from cloudbaseinit.openstack.common import log as logging
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opts = [
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cfg.StrOpt('metadata_base_url', default='http://169.254.169.254/',
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help='The base URL where the service looks for metadata'),
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]
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CONF = cfg.CONF
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CONF.register_opts(opts)
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LOG = logging.getLogger(__name__)
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class HttpService(BaseMetadataService):
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def load(self):
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super(HttpService, self).load()
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try:
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self.get_meta_data('openstack')
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return True
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except:
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LOG.debug('Metadata not found at URL \'%s\'' %
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CONF.metadata_base_url)
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return False
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def _get_response(self, req):
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try:
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return urllib2.urlopen(req)
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except urllib2.HTTPError as ex:
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if ex.code == 404:
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raise NotExistingMetadataException()
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else:
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raise ex
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def _get_data(self, path):
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norm_path = posixpath.join(CONF.metadata_base_url, path)
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LOG.debug('Getting metadata from: %(norm_path)s' % locals())
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req = urllib2.Request(norm_path)
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response = self._get_response(req)
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return response.read()
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def _post_data(self, path, data):
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norm_path = posixpath.join(CONF.metadata_base_url, path)
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LOG.debug('Posting metadata to: %(norm_path)s' % locals())
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req = urllib2.Request(norm_path, data=urllib.urlencode(data))
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self._get_response(req)
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return True
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def post_password(self, enc_password_b64, version='latest'):
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try:
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return super(HttpService, self).post_password(enc_password_b64,
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version)
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except urllib2.HTTPError as ex:
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if ex.code == 409:
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# Password already set
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return False
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else:
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raise ex
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