portal/slicerequestview.py

   1 from django.shortcuts           import render
   2 from django.contrib.sites.models import Site
   3
   4
   5 from unfold.page                import Page
   6
   7 from manifold.core.query        import Query
   8 from manifoldapi.manifoldapi    import execute_admin_query, execute_query
   9
  10 from portal.actions             import is_pi, create_slice, create_pending_slice
  11 from portal.forms               import SliceRequestForm
  12 from unfold.loginrequired       import LoginRequiredAutoLogoutView
  13 from ui.topmenu                 import topmenu_items_live, the_user
  14
  15 from myslice.theme import ThemeView
  16
  17 import json, time
  18
  19 class SliceRequestView (LoginRequiredAutoLogoutView, ThemeView):
  20     template_name = 'slicerequest_view.html'
  21
  22     # because we inherit LoginRequiredAutoLogoutView that is implemented by redefining 'dispatch'
  23     # we cannot redefine dispatch here, or we'd lose LoginRequired and AutoLogout behaviours
  24     def post (self, request):
  25         return self.get_or_post (request, 'POST')
  26
  27     def get (self, request):
  28         return self.get_or_post (request, 'GET')
  29
  30     def get_or_post  (self, wsgi_request, method):
  31         """
  32         """
  33         errors = []
  34
  35         # Retrieve the list of authorities
  36         authorities_query = Query.get('authority').select('name', 'authority_hrn')
  37         authorities = execute_admin_query(wsgi_request, authorities_query)
  38         if authorities is not None:
  39             authorities = sorted(authorities)
  40
  41         # Get user_hrn (XXX Would deserve to be simplified)
  42         user_query  = Query().get('local:user').select('email')
  43         user_emails = execute_query(wsgi_request, user_query)
  44         user_email = user_emails[0].get('email')
  45         #
  46         account_query  = Query().get('local:account').select('user_id','platform_id','auth_type','config')
  47         account_details = execute_query(wsgi_request, account_query)
  48         #
  49         platform_query  = Query().get('local:platform').select('platform_id','platform','gateway_type','disabled')
  50         platform_details = execute_query(wsgi_request, platform_query)
  51         user_hrn = None
  52         # getting user_hrn from local:account
  53         for account_detail in account_details:
  54             for platform_detail in platform_details:
  55                 if platform_detail['platform_id'] == account_detail['platform_id']:
  56                     # taking user_hrn only from myslice account
  57                     # NOTE: we should later handle accounts filter_by auth_type= managed OR user
  58                     if 'myslice' in platform_detail['platform']:
  59                         account_config = json.loads(account_detail['config'])
  60                         user_hrn = account_config.get('user_hrn','N/A')
  61
  62         # Page rendering
  63         page = Page(wsgi_request)
  64         page.add_css_files ( [ "http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" ] )
  65
  66         if method == 'POST':
  67             # The form has been submitted
  68
  69             # get the domain url
  70             current_site = Site.objects.get_current()
  71             current_site = current_site.domain
  72
  73             slice_request = {
  74                 'type'              : 'slice',
  75                 'id'                : None,
  76                 'user_hrn'          : user_hrn,
  77                 'timestamp'         : time.time(),
  78                 'authority_hrn'     : wsgi_request.POST.get('authority_hrn', ''),
  79                 'slice_name'        : wsgi_request.POST.get('slice_name', ''),
  80                 'number_of_nodes'   : wsgi_request.POST.get('number_of_nodes', ''),
  81                 'type_of_nodes'     : wsgi_request.POST.get('type_of_nodes', ''),
  82                 'purpose'           : wsgi_request.POST.get('purpose', ''),
  83                 'current_site'      : current_site
  84             }
  85
  86             authority_hrn = slice_request['authority_hrn']
  87             if (authority_hrn is None or authority_hrn == ''):
  88                 errors.append('Please, select an authority')
  89
  90             # What kind of slice name is valid?
  91             slice_name = slice_request['slice_name']
  92             if (slice_name is None or slice_name == ''):
  93                 errors.append('Slice Name is mandatory')
  94
  95             purpose = slice_request['purpose']
  96             if (purpose is None or purpose == ''):
  97                 errors.append('Purpose is mandatory')
  98
  99             if not errors:
 100                 if is_pi(wsgi_request, user_hrn, authority_hrn):
 101                     # PIs can directly create slices in their own authority...
 102                     create_slice(wsgi_request, slice_request)
 103                     self.template_name = 'slice-request-done-view.html'
 104                 else:
 105                     # Otherwise a wsgi_request is sent to the PI
 106                     create_pending_slice(wsgi_request, slice_request, user_email)
 107                     self.template_name = 'slice-request-ack-view.html'
 108
 109                 return render(wsgi_request, self.template, {'theme': self.theme}) # Redirect after POST
 110         else:
 111             slice_request = {}
 112
 113         template_env = {
 114             'username': wsgi_request.user.email,
 115             'topmenu_items': topmenu_items_live('Request a slice', page),
 116             'errors': errors,
 117             'email': user_email,
 118             'user_hrn': user_hrn,
 119             'cc_myself': True,
 120             'authorities': authorities,
 121             'theme': self.theme,
 122             'section': "Slice request"
 123         }
 124         template_env.update(slice_request)
 125         template_env.update(page.prelude_env())
 126         return render(wsgi_request, self.template, template_env)