osmclient/sol005/http.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 from io import BytesIO
  18 import pycurl
  19 import json
  20 import yaml
  21 from osmclient.common import http
  22 from osmclient.common.exceptions import ClientException
  23
  24 class Http(http.Http):
  25
  26     def __init__(self, url, user='admin', password='admin'):
  27         self._url = url
  28         self._user = user
  29         self._password = password
  30         self._http_header = None
  31
  32     def _get_curl_cmd(self, endpoint):
  33         curl_cmd = pycurl.Curl()
  34         #print self._url + endpoint
  35         curl_cmd.setopt(pycurl.URL, self._url + endpoint)
  36         curl_cmd.setopt(pycurl.SSL_VERIFYPEER, 0)
  37         curl_cmd.setopt(pycurl.SSL_VERIFYHOST, 0)
  38         if self._http_header:
  39             curl_cmd.setopt(pycurl.HTTPHEADER, self._http_header)
  40         return curl_cmd
  41
  42     def delete_cmd(self, endpoint):
  43         data = BytesIO()
  44         curl_cmd = self._get_curl_cmd(endpoint)
  45         curl_cmd.setopt(pycurl.CUSTOMREQUEST, "DELETE")
  46         curl_cmd.setopt(pycurl.WRITEFUNCTION, data.write)
  47         curl_cmd.perform()
  48         http_code = curl_cmd.getinfo(pycurl.HTTP_CODE)
  49         #print 'HTTP_CODE: {}'.format(http_code)
  50         curl_cmd.close()
  51         # TODO 202 accepted should be returned somehow
  52         if data.getvalue():
  53             return http_code, json.loads(data.getvalue().decode())
  54         else:
  55             return http_code, None
  56
  57     def send_cmd(self, endpoint='', postfields_dict=None,
  58                  formfile=None, filename=None,
  59                  put_method=False):
  60         data = BytesIO()
  61         curl_cmd = self._get_curl_cmd(endpoint)
  62         if put_method:
  63             curl_cmd.setopt(pycurl.PUT, 1)
  64         else:
  65             curl_cmd.setopt(pycurl.POST, 1)
  66         curl_cmd.setopt(pycurl.WRITEFUNCTION, data.write)
  67
  68         if postfields_dict is not None:
  69             jsondata = json.dumps(postfields_dict)
  70             curl_cmd.setopt(pycurl.POSTFIELDS, jsondata)
  71         elif formfile is not None:
  72             curl_cmd.setopt(
  73                 pycurl.HTTPPOST,
  74                 [((formfile[0],
  75                            (pycurl.FORM_FILE,
  76                             formfile[1])))])
  77         elif filename is not None:
  78             with open(filename, 'r') as stream:
  79                 postdata=stream.read()
  80             curl_cmd.setopt(pycurl.POSTFIELDS, postdata)
  81
  82         curl_cmd.perform()
  83         http_code = curl_cmd.getinfo(pycurl.HTTP_CODE)
  84         curl_cmd.close()
  85         if http_code not in (200, 201, 202, 204):
  86             raise ClientException(data.getvalue().decode())
  87         if postfields_dict is not None:
  88             if data.getvalue():
  89                 return json.loads(data.getvalue().decode())
  90             return None
  91         elif formfile is not None:
  92             if data.getvalue():
  93                 return yaml.safe_load(data.getvalue().decode())
  94             return None
  95         elif filename is not None:
  96             if data.getvalue():
  97                 return yaml.safe_load(data.getvalue().decode())
  98             return None
  99         return None
 100
 101     def post_cmd(self, endpoint='', postfields_dict=None,
 102                  formfile=None, filename=None):
 103         return self.send_cmd(endpoint=endpoint,
 104                              postfields_dict=postfields_dict,
 105                              formfile=formfile,
 106                              filename=filename,
 107                              put_method=False)
 108
 109     def put_cmd(self, endpoint='', postfields_dict=None,
 110                 formfile=None, filename=None):
 111         return self.send_cmd(endpoint=endpoint,
 112                              postfields_dict=postfields_dict,
 113                              formfile=formfile,
 114                              filename=filename,
 115                              put_method=True)
 116
 117     def get2_cmd(self, endpoint):
 118         data = BytesIO()
 119         curl_cmd = self._get_curl_cmd(endpoint)
 120         curl_cmd.setopt(pycurl.HTTPGET, 1)
 121         curl_cmd.setopt(pycurl.WRITEFUNCTION, data.write)
 122         curl_cmd.perform()
 123         http_code = curl_cmd.getinfo(pycurl.HTTP_CODE)
 124         curl_cmd.close()
 125         if data.getvalue():
 126             return http_code, data.getvalue()
 127         return http_code, None
 128