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 json.loads(data.getvalue().decode())
  54         elif http_code == 404:
  55             return "NOT FOUND"
  56         elif http_code >= 300:
  57             return "Failed"
  58         else:
  59             return
  60
  61     def send_cmd(self, endpoint='', postfields_dict=None,
  62                  formfile=None, filename=None,
  63                  put_method=False):
  64         data = BytesIO()
  65         curl_cmd = self._get_curl_cmd(endpoint)
  66         if put_method:
  67             curl_cmd.setopt(pycurl.PUT, 1)
  68         else:
  69             curl_cmd.setopt(pycurl.POST, 1)
  70         curl_cmd.setopt(pycurl.WRITEFUNCTION, data.write)
  71
  72         if postfields_dict is not None:
  73             jsondata = json.dumps(postfields_dict)
  74             curl_cmd.setopt(pycurl.POSTFIELDS, jsondata)
  75         elif formfile is not None:
  76             curl_cmd.setopt(
  77                 pycurl.HTTPPOST,
  78                 [((formfile[0],
  79                            (pycurl.FORM_FILE,
  80                             formfile[1])))])
  81         elif filename is not None:
  82             with open(filename, 'r') as stream:
  83                 postdata=stream.read()
  84             curl_cmd.setopt(pycurl.POSTFIELDS, postdata)
  85
  86         curl_cmd.perform()
  87         http_code = curl_cmd.getinfo(pycurl.HTTP_CODE)
  88         curl_cmd.close()
  89         if http_code not in (200, 201, 202, 204):
  90             raise ClientException(data.getvalue().decode())
  91         if postfields_dict is not None:
  92             if data.getvalue():
  93                 return json.loads(data.getvalue().decode())
  94             return None
  95         elif formfile is not None:
  96             if data.getvalue():
  97                 return yaml.safe_load(data.getvalue().decode())
  98             return None
  99         elif filename is not None:
 100             if data.getvalue():
 101                 return yaml.safe_load(data.getvalue().decode())
 102             return None
 103         return None
 104
 105     def post_cmd(self, endpoint='', postfields_dict=None,
 106                  formfile=None, filename=None):
 107         return self.send_cmd(endpoint=endpoint,
 108                              postfields_dict=postfields_dict,
 109                              formfile=formfile,
 110                              filename=filename,
 111                              put_method=False)
 112
 113     def put_cmd(self, endpoint='', postfields_dict=None,
 114                 formfile=None, filename=None):
 115         return self.send_cmd(endpoint=endpoint,
 116                              postfields_dict=postfields_dict,
 117                              formfile=formfile,
 118                              filename=filename,
 119                              put_method=True)
 120
 121     def get2_cmd(self, endpoint):
 122         data = BytesIO()
 123         curl_cmd = self._get_curl_cmd(endpoint)
 124         curl_cmd.setopt(pycurl.HTTPGET, 1)
 125         curl_cmd.setopt(pycurl.WRITEFUNCTION, data.write)
 126         curl_cmd.perform()
 127         curl_cmd.close()
 128         return data.getvalue()
 129