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         new_vim_dict = request.POST.dict()
  53         client = Client()
  54         keys = ["schema_version",
  55                 "schema_type",
  56                 "name",
  57                 "vim_url",
  58                 "vim_type",
  59                 "vim_user",
  60                 "vim_password",
  61                 "vim_tenant_name",
  62                 "description"]
  63         vim_data = dict(filter(lambda i: i[0] in keys and len(i[1]) > 0, new_vim_dict.items()))
  64         vim_data['config'] = {}
  65         for k, v in new_vim_dict.items():
  66             if str(k).startswith('config_') and len(v) > 0:
  67                 config_key = k[7:]
  68                 vim_data['config'][config_key] = v
  69         if 'additional_conf' in new_vim_dict:
  70             try:
  71                 additional_conf_dict = yaml.safe_load(new_vim_dict['additional_conf'])
  72                 for k,v in additional_conf_dict.items():
  73                     vim_data['config'][k] = v
  74             except Exception as e:
  75                 # TODO return error on json.loads exception
  76                 print e
  77         result = client.vim_create(user.get_token(), vim_data)
  78         # TODO  'vim:show', to_redirect=True, vim_id=vim_id
  79         return __response_handler(request, result, 'vims:list', to_redirect=True, )
  80
  81 @login_required
  82 def delete(request, vim_id=None):
  83     user = osmutils.get_user(request)
  84     try:
  85         client = Client()
  86         del_res = client.vim_delete(user.get_token(), vim_id)
  87     except Exception as e:
  88         log.exception(e)
  89     return __response_handler(request, del_res, 'vims:list', to_redirect=True, )
  90
  91 @login_required
  92 def show(request, vim_id=None):
  93     user = osmutils.get_user(request)
  94     project_id = user.project_id
  95     client = Client()
  96     result = client.vim_get(user.get_token(), vim_id)
  97     print result
  98     if isinstance(result, dict) and 'error' in result and result['error']:
  99         return render(request, 'error.html')
 100
 101     return __response_handler(request, {
 102         "datacenter": result['data'],
 103         "project_id": project_id
 104     }, 'vim_show.html')
 105
 106
 107 def __response_handler(request, data_res, url=None, to_redirect=None, *args, **kwargs):
 108     raw_content_types = request.META.get('HTTP_ACCEPT', '*/*').split(',')
 109     if 'application/json' in raw_content_types or url is None:
 110         return HttpResponse(json.dumps(data_res), content_type="application/json", *args, **kwargs)
 111     elif to_redirect:
 112         return redirect(url, *args, **kwargs)
 113     else:
 114         return render(request, url, data_res)