vimhandler/views.py

   1 #
   2 #   Copyright 2018 CNIT - Consorzio Nazionale Interuniversitario per le Telecomunicazioni
   3 #
   4 #   Licensed under the Apache License, Version 2.0 (the "License");
   5 #   you may not use this file except in compliance with the License.
   6 #   You may obtain a copy of the License at
   7 #
   8 #       http://www.apache.org/licenses/LICENSE-2.0
   9 #
  10 #   Unless required by applicable law or agreed to in writing, software
  11 #   distributed under the License is distributed on an  BASIS,
  12 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 #   See the License for the specific language governing permissions and
  14 #   limitations under the License.
  15 #
  16
  17 from django.shortcuts import render, redirect
  18 from sf_t3d.decorators import login_required
  19 from django.http import HttpResponse
  20 import json
  21 from lib.osm.osmclient.clientv2 import Client
  22 import authosm.utils as osmutils
  23 import yaml
  24 import logging
  25
  26 logging.basicConfig(level=logging.DEBUG)
  27 log = logging.getLogger('vimhandler.py')
  28
  29
  30 @login_required
  31 def list(request):
  32     user = osmutils.get_user(request)
  33     project_id = user.project_id
  34     result = {'type': 'ns', 'project_id': project_id}
  35     raw_content_types = request.META.get('HTTP_ACCEPT', '*/*').split(',')
  36     if 'application/json' not in raw_content_types:
  37         return __response_handler(request, result, 'vim_list.html')
  38     client = Client()
  39     result_client = client.vim_list(user.get_token())
  40     result["datacenters"] = result_client['data'] if result_client and result_client['error'] is False else []
  41     return __response_handler(request, result, 'vim_list.html')
  42
  43
  44 @login_required
  45 def create(request):
  46     user = osmutils.get_user(request)
  47     project_id = user.project_id
  48     result = {'project_id': project_id}
  49     if request.method == 'GET':
  50         return __response_handler(request, result, 'vim_create.html')
  51     else:
  52         try:
  53             new_vim_dict = request.POST.dict()
  54             client = Client()
  55             keys = ["schema_version",
  56                     "schema_type",
  57                     "name",
  58                     "vim_url",
  59                     "vim_type",
  60                     "vim_user",
  61                     "vim_password",
  62                     "vim_tenant_name",
  63                     "description"]
  64             vim_data = dict(filter(lambda i: i[0] in keys and len(
  65                 i[1]) > 0, new_vim_dict.items()))
  66             vim_data['config'] = {}
  67
  68             config_file = request.FILES.get('config_file')
  69
  70             if config_file is not None:
  71                 config = ''
  72                 for line in config_file:
  73                     config = config + line.decode()
  74                 vim_data['config'] = yaml.load(config)
  75             elif 'config' in request.POST and request.POST.get('config') != '':
  76                 vim_data['config'] = yaml.load(request.POST.get('config'))
  77
  78
  79         except Exception as e:
  80             return __response_handler(request, {'status': 400, 'code': 'BAD_REQUEST', 'detail': e.message}, url=None, status=400)
  81         result = client.vim_create(user.get_token(), vim_data)
  82
  83         if result['error']:
  84             return __response_handler(request, result['data'], url=None,
  85                                       status=result['data']['status'] if 'status' in result['data'] else 500)
  86         else:
  87             return __response_handler(request, {}, url=None, status=200)
  88
  89
  90 @login_required
  91 def delete(request, vim_id=None):
  92     user = osmutils.get_user(request)
  93     try:
  94         client = Client()
  95         del_res = client.vim_delete(user.get_token(), vim_id)
  96     except Exception as e:
  97         log.exception(e)
  98     return __response_handler(request, del_res, 'vims:list', to_redirect=True)
  99
 100
 101 @login_required
 102 def show(request, vim_id=None):
 103     user = osmutils.get_user(request)
 104     project_id = user.project_id
 105     client = Client()
 106     result = client.vim_get(user.get_token(), vim_id)
 107     if isinstance(result, dict) and 'error' in result and result['error']:
 108         return render(request, 'error.html')
 109
 110     return __response_handler(request, {
 111         "datacenter": result['data'],
 112         "project_id": project_id
 113     }, 'vim_show.html')
 114
 115
 116 def __response_handler(request, data_res, url=None, to_redirect=None, *args, **kwargs):
 117     raw_content_types = request.META.get('HTTP_ACCEPT', '*/*').split(',')
 118     if 'application/json' in raw_content_types or url is None:
 119         return HttpResponse(json.dumps(data_res), content_type="application/json", *args, **kwargs)
 120     elif to_redirect:
 121         return redirect(url, *args, **kwargs)
 122     else:
 123         return render(request, url, data_res)