sdnctrlhandler/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 import logging
  22 import authosm.utils as osmutils
  23 from lib.osm.osmclient.clientv2 import Client
  24
  25 logging.basicConfig(level=logging.DEBUG)
  26 log = logging.getLogger('sdnctrlhandler/view.py')
  27
  28
  29 @login_required
  30 def list(request):
  31     user = osmutils.get_user(request)
  32     project_id = user.project_id
  33     result = {'project_id': project_id}
  34     raw_content_types = request.META.get('HTTP_ACCEPT', '*/*').split(',')
  35     if 'application/json' not in raw_content_types:
  36         return __response_handler(request, result, 'sdn_list.html')
  37     client = Client()
  38     result_client = client.sdn_list(user.get_token())
  39
  40     result['sdns'] = result_client['data'] if result_client and result_client['error'] is False else []
  41
  42     return __response_handler(request, result, 'sdn_list.html')
  43
  44
  45 @login_required
  46 def create(request):
  47     user = osmutils.get_user(request)
  48     project_id = user.project_id
  49     result = {'project_id': project_id}
  50     if request.method == 'GET':
  51         return __response_handler(request, result, 'sdn_create.html')
  52     else:
  53         new_sdn_dict = request.POST.dict()
  54         client = Client()
  55         keys = ["name",
  56                 "type",
  57                 "version",
  58                 "dpid",
  59                 "ip",
  60                 "port",
  61                 "user",
  62                 "password"]
  63         sdn_data = dict(filter(lambda i: i[0] in keys and len(i[1]) > 0, new_sdn_dict.items()))
  64         sdn_data['port'] = int(sdn_data['port'])
  65
  66         result = client.sdn_create(user.get_token(), sdn_data)
  67
  68         return __response_handler(request, result, 'sdns:list', to_redirect=True, )
  69
  70
  71 @login_required
  72 def delete(request, sdn_id=None):
  73     user = osmutils.get_user(request)
  74     project_id = user.project_id
  75     try:
  76         client = Client()
  77         del_res = client.sdn_delete(user.get_token(), sdn_id)
  78     except Exception as e:
  79         log.exception(e)
  80     return __response_handler(request, del_res, 'sdns:list', to_redirect=True, )
  81
  82
  83 @login_required
  84 def show(request, sdn_id=None):
  85     user = osmutils.get_user(request)
  86     project_id = user.project_id
  87     client = Client()
  88     result = client.sdn_get(user.get_token(), sdn_id)
  89     if isinstance(result, dict) and 'error' in result and result['error']:
  90         return render(request, 'error.html')
  91     return __response_handler(request, {
  92         "sdn": result['data'],
  93         "project_id": project_id})
  94
  95
  96 def __response_handler(request, data_res, url=None, to_redirect=None, *args, **kwargs):
  97     raw_content_types = request.META.get('HTTP_ACCEPT', '*/*').split(',')
  98     if 'application/json' in raw_content_types or url is None:
  99         return HttpResponse(json.dumps(data_res), content_type="application/json", *args, **kwargs)
 100     elif to_redirect:
 101         return redirect(url, *args, **kwargs)
 102     else:
 103         return render(request, url, data_res)