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 #from lib.osm.osmclient.client import Client
  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, project_id):
  31     client = Client()
  32     result = client.sdn_list(request.session['token'])
  33
  34     result = {
  35         'project_id': project_id,
  36         'sdns': result['data'] if result and result['error'] is False else []
  37     }
  38     return __response_handler(request, result, 'sdn_list.html')
  39
  40
  41 @login_required
  42 def create(request, project_id):
  43     result = {'project_id': project_id}
  44     if request.method == 'GET':
  45         return __response_handler(request, result, 'sdn_create.html')
  46     else:
  47         new_sdn_dict = request.POST.dict()
  48         client = Client()
  49         keys = ["name",
  50                 "type",
  51                 "version",
  52                 "dpid",
  53                 "ip",
  54                 "port",
  55                 "user",
  56                 "password"]
  57         sdn_data = dict(filter(lambda i: i[0] in keys and len(i[1]) > 0, new_sdn_dict.items()))
  58         sdn_data['port'] = int(sdn_data['port'])
  59
  60         result = client.sdn_create(request.session['token'], sdn_data)
  61
  62         return __response_handler(request, result, 'projects:sdns:list', to_redirect=True, project_id=project_id)
  63
  64
  65 @login_required
  66 def delete(request, project_id, sdn_id=None):
  67     try:
  68         client = Client()
  69         del_res = client.sdn_delete(request.session['token'], sdn_id)
  70     except Exception as e:
  71         log.exception(e)
  72     return __response_handler(request, {}, 'projects:sdns:list', to_redirect=True, project_id=project_id)
  73
  74
  75 @login_required
  76 def show(request, project_id, sdn_id=None):
  77     client = Client()
  78     result = client.sdn_get(request.session['token'], sdn_id)
  79     if isinstance(result, dict) and 'error' in result and result['error']:
  80         return render(request, 'error.html')
  81     return __response_handler(request, {
  82         "sdn": result['data'],
  83         "project_id": project_id})
  84
  85
  86 def __response_handler(request, data_res, url=None, to_redirect=None, *args, **kwargs):
  87     raw_content_types = request.META.get('HTTP_ACCEPT', '*/*').split(',')
  88     if 'application/json' in raw_content_types or url is None:
  89         return HttpResponse(json.dumps(data_res), content_type="application/json", *args, **kwargs)
  90     elif to_redirect:
  91         return redirect(url, *args, **kwargs)
  92     else:
  93         return render(request, url, data_res)