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, patch_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         elif patch_method:
  65             curl_cmd.setopt(pycurl.CUSTOMREQUEST, "PATCH")
  66         else:
  67             curl_cmd.setopt(pycurl.POST, 1)
  68         curl_cmd.setopt(pycurl.WRITEFUNCTION, data.write)
  69
  70         if postfields_dict is not None:
  71             jsondata = json.dumps(postfields_dict)
  72             curl_cmd.setopt(pycurl.POSTFIELDS, jsondata)
  73         elif formfile is not None:
  74             curl_cmd.setopt(
  75                 pycurl.HTTPPOST,
  76                 [((formfile[0],
  77                            (pycurl.FORM_FILE,
  78                             formfile[1])))])
  79         elif filename is not None:
  80             with open(filename, 'r') as stream:
  81                 postdata=stream.read()
  82             curl_cmd.setopt(pycurl.POSTFIELDS, postdata)
  83
  84         curl_cmd.perform()
  85         http_code = curl_cmd.getinfo(pycurl.HTTP_CODE)
  86         curl_cmd.close()
  87         if http_code not in (200, 201, 202, 204):
  88             raise ClientException(data.getvalue().decode())
  89         if postfields_dict is not None:
  90             if data.getvalue():
  91                 return json.loads(data.getvalue().decode())
  92             return None
  93         elif formfile is not None:
  94             if data.getvalue():
  95                 return yaml.safe_load(data.getvalue().decode())
  96             return None
  97         elif filename is not None:
  98             if data.getvalue():
  99                 return yaml.safe_load(data.getvalue().decode())
 100             return None
 101         return None
 102
 103     def post_cmd(self, endpoint='', postfields_dict=None,
 104                  formfile=None, filename=None):
 105         return self.send_cmd(endpoint=endpoint,
 106                              postfields_dict=postfields_dict,
 107                              formfile=formfile,
 108                              filename=filename,
 109                              put_method=False, patch_method=False)
 110
 111     def put_cmd(self, endpoint='', postfields_dict=None,
 112                 formfile=None, filename=None):
 113         return self.send_cmd(endpoint=endpoint,
 114                              postfields_dict=postfields_dict,
 115                              formfile=formfile,
 116                              filename=filename,
 117                              put_method=True, patch_method=False)
 118
 119     def patch_cmd(self, endpoint='', postfields_dict=None,
 120                 formfile=None, filename=None):
 121         return self.send_cmd(endpoint=endpoint,
 122                              postfields_dict=postfields_dict,
 123                              formfile=formfile,
 124                              filename=filename,
 125                              put_method=False, patch_method=True)
 126
 127     def get2_cmd(self, endpoint):
 128         data = BytesIO()
 129         curl_cmd = self._get_curl_cmd(endpoint)
 130         curl_cmd.setopt(pycurl.HTTPGET, 1)
 131         curl_cmd.setopt(pycurl.WRITEFUNCTION, data.write)
 132         curl_cmd.perform()
 133         http_code = curl_cmd.getinfo(pycurl.HTTP_CODE)
 134         curl_cmd.close()
 135         if data.getvalue():
 136             return http_code, data.getvalue()
 137         return http_code, None
 138