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 django.contrib.auth.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     client = Client()
  34     result = client.sdn_list(user.get_token())
  35
  36     result = {
  37         'project_id': project_id,
  38         'sdns': result['data'] if result and result['error'] is False else []
  39     }
  40     return __response_handler(request, result, 'sdn_list.html')
  41
  42
  43 @login_required
  44 def create(request):
  45     user = osmutils.get_user(request)
  46     project_id = user.project_id
  47     result = {'project_id': project_id}
  48     if request.method == 'GET':
  49         return __response_handler(request, result, 'sdn_create.html')
  50     else:
  51         new_sdn_dict = request.POST.dict()
  52         client = Client()
  53         keys = ["name",
  54                 "type",
  55                 "version",
  56                 "dpid",
  57                 "ip",
  58                 "port",
  59                 "user",
  60                 "password"]
  61         sdn_data = dict(filter(lambda i: i[0] in keys and len(i[1]) > 0, new_sdn_dict.items()))
  62         sdn_data['port'] = int(sdn_data['port'])
  63
  64         result = client.sdn_create(user.get_token(), sdn_data)
  65
  66         return __response_handler(request, result, 'sdns:list', to_redirect=True, )
  67
  68
  69 @login_required
  70 def delete(request, sdn_id=None):
  71     user = osmutils.get_user(request)
  72     project_id = user.project_id
  73     try:
  74         client = Client()
  75         del_res = client.sdn_delete(user.get_token(), sdn_id)
  76     except Exception as e:
  77         log.exception(e)
  78     return __response_handler(request, del_res, 'sdns:list', to_redirect=True, )
  79
  80
  81 @login_required
  82 def show(request, sdn_id=None):
  83     user = osmutils.get_user(request)
  84     project_id = user.project_id
  85     client = Client()
  86     result = client.sdn_get(user.get_token(), sdn_id)
  87     if isinstance(result, dict) and 'error' in result and result['error']:
  88         return render(request, 'error.html')
  89     return __response_handler(request, {
  90         "sdn": result['data'],
  91         "project_id": project_id})
  92
  93
  94 def __response_handler(request, data_res, url=None, to_redirect=None, *args, **kwargs):
  95     raw_content_types = request.META.get('HTTP_ACCEPT', '*/*').split(',')
  96     if 'application/json' in raw_content_types or url is None:
  97         return HttpResponse(json.dumps(data_res), content_type="application/json", *args, **kwargs)
  98     elif to_redirect:
  99         return redirect(url, *args, **kwargs)
 100     else:
 101         return render(request, url, data_res)