osmclient/sol005/nsd.py

   1 # Copyright 2018 Telefonica
   2 #
   3 # All Rights Reserved.
   4 #
   5 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
   6 #    not use this file except in compliance with the License. You may obtain
   7 #    a copy of the License at
   8 #
   9 #         http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 #    Unless required by applicable law or agreed to in writing, software
  12 #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  13 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  14 #    License for the specific language governing permissions and limitations
  15 #    under the License.
  16
  17 """
  18 OSM nsd API handling
  19 """
  20
  21 from osmclient.common.exceptions import NotFound
  22 from osmclient.common.exceptions import ClientException
  23 from osmclient.common import utils
  24 import yaml
  25 import magic
  26 #from os import stat
  27 #from os.path import basename
  28
  29 class Nsd(object):
  30
  31     def __init__(self, http=None, client=None):
  32         self._http = http
  33         self._client = client
  34         self._apiName = '/nsd'
  35         self._apiVersion = '/v1'
  36         self._apiResource = '/ns_descriptors'
  37         self._apiBase = '{}{}{}'.format(self._apiName,
  38                                         self._apiVersion, self._apiResource)
  39         #self._apiBase='/nsds'
  40
  41     def list(self, filter=None):
  42         filter_string = ''
  43         if filter:
  44             filter_string = '?{}'.format(filter)
  45         resp = self._http.get_cmd('{}{}'.format(self._apiBase, filter_string))
  46         #print yaml.safe_dump(resp)
  47         if resp:
  48             return resp
  49         return list()
  50
  51     def get(self, name):
  52         if utils.validate_uuid4(name):
  53             for nsd in self.list():
  54                 if name == nsd['_id']:
  55                     return nsd
  56         else:
  57             for nsd in self.list():
  58                 if 'name' in nsd and name == nsd['name']:
  59                     return nsd
  60         raise NotFound("nsd {} not found".format(name))
  61
  62     def get_individual(self, name):
  63         nsd = self.get(name)
  64         # It is redundant, since the previous one already gets the whole nsdinfo
  65         # The only difference is that a different primitive is exercised
  66         resp = self._http.get_cmd('{}/{}'.format(self._apiBase, nsd['_id']))
  67         #print yaml.safe_dump(resp)
  68         if resp:
  69             return resp
  70         raise NotFound("nsd {} not found".format(name))
  71
  72     def get_thing(self, name, thing, filename):
  73         nsd = self.get(name)
  74         headers = self._client._headers
  75         headers['Accept'] = 'application/binary'
  76         resp2 = self._http.get2_cmd('{}/{}/{}'.format(self._apiBase, nsd['_id'], thing))
  77         #print yaml.safe_dump(resp2)
  78         if resp2:
  79             #store in a file
  80             return resp2
  81         raise NotFound("nsd {} not found".format(name))
  82
  83     def get_descriptor(self, name, filename):
  84         self.get_thing(name, 'nsd', filename)
  85
  86     def get_package(self, name, filename):
  87         self.get_thing(name, 'package_content', filename)
  88
  89     def get_artifact(self, name, artifact, filename):
  90         self.get_thing(name, 'artifacts/{}'.format(artifact), filename)
  91
  92     def delete(self, name):
  93         nsd = self.get(name)
  94         http_code, resp = self._http.delete_cmd('{}/{}'.format(self._apiBase, nsd['_id']))
  95         #print 'RESP: {}'.format(resp)
  96         if http_code == 202:
  97             print 'Deletion in progress'
  98         elif http_code == 204:
  99             print 'Deleted'
 100         else:
 101             raise ClientException("failed to delete nsd {}: {}".format(name, resp))
 102
 103     def create(self, filename, overwrite=None, update_endpoint=None):
 104         mime_type = magic.from_file(filename, mime=True)
 105         if mime_type is None:
 106             raise ClientException(
 107                      "failed to guess MIME type for file '{}'".format(filename))
 108         headers= self._client._headers
 109         if mime_type in ['application/yaml', 'text/plain']:
 110             headers['Content-Type'] = 'application/yaml'
 111         elif mime_type == 'application/gzip':
 112             headers['Content-Type'] = 'application/gzip'
 113             #headers['Content-Type'] = 'application/binary'
 114             # Next three lines are to be removed in next version
 115             #headers['Content-Filename'] = basename(filename)
 116             #file_size = stat(filename).st_size
 117             #headers['Content-Range'] = 'bytes 0-{}/{}'.format(file_size - 1, file_size)
 118         else:
 119             raise ClientException(
 120                      "Unexpected MIME type for file {}: MIME type {}".format(
 121                          filename, mime_type)
 122                   )
 123         headers["Content-File-MD5"] = utils.md5(filename)
 124         http_header = ['{}: {}'.format(key,val)
 125                       for (key,val) in headers.items()]
 126         self._http.set_http_header(http_header)
 127         if update_endpoint:
 128             resp = self._http.put_cmd(endpoint=update_endpoint, filename=filename)
 129         else:
 130             ow_string = ''
 131             if overwrite:
 132                 ow_string = '?{}'.format(overwrite)
 133             self._apiResource = '/ns_descriptors_content'
 134             self._apiBase = '{}{}{}'.format(self._apiName,
 135                                             self._apiVersion, self._apiResource)
 136             endpoint = '{}{}'.format(self._apiBase,ow_string)
 137             resp = self._http.post_cmd(endpoint=endpoint, filename=filename)
 138         #print resp
 139         if not resp or 'id' not in resp:
 140             raise ClientException("failed to upload package")
 141         else:
 142             print resp['id']
 143
 144     def update(self, name, filename):
 145         nsd = self.get(name)
 146         endpoint = '{}/{}/nsd_content'.format(self._apiBase, nsd['_id'])
 147         self.create(filename=filename, update_endpoint=endpoint)
 148