portal/slicerequestview.py

   1 from django.template.loader      import render_to_string
   2 from django.shortcuts            import render
   3 from django.core.mail            import send_mail
   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.models               import PendingSlice
  11 from portal.actions              import authority_get_pi_emails
  12 from portal.forms                import SliceRequestForm
  13 from unfold.loginrequired        import LoginRequiredAutoLogoutView
  14 from ui.topmenu                  import topmenu_items_live, the_user
  15
  16 from theme import ThemeView
  17
  18 import json
  19
  20 class SliceRequestView (LoginRequiredAutoLogoutView, ThemeView):
  21     template_name = 'slicerequest_view.html'
  22
  23     def __init__ (self):
  24         self.user_email = ''
  25         self.errors = []
  26
  27     # because we inherit LoginRequiredAutoLogoutView that is implemented by redefining 'dispatch'
  28     # we cannot redefine dispatch here, or we'd lose LoginRequired and AutoLogout behaviours
  29     def post (self, request):
  30         return self.get_or_post (request, 'POST')
  31
  32     def get (self, request):
  33         return self.get_or_post (request, 'GET')
  34
  35     def get_or_post  (self, request, method):
  36         # Using cache manifold-tables to get the list of authorities faster
  37         authorities_query = Query.get('authority').select('name', 'authority_hrn')
  38         authorities = execute_admin_query(request, authorities_query)
  39         if authorities is not None:
  40             authorities = sorted(authorities)
  41
  42         user_query  = Query().get('local:user').select('email')
  43         user_email = execute_query(self.request, user_query)
  44         self.user_email = user_email[0].get('email')
  45
  46
  47         account_query  = Query().get('local:account').select('user_id','platform_id','auth_type','config')
  48         account_details = execute_query(self.request, account_query)
  49
  50         platform_query  = Query().get('local:platform').select('platform_id','platform','gateway_type','disabled')
  51         platform_details = execute_query(self.request, platform_query)
  52         user_hrn = None
  53         # getting user_hrn from local:account
  54         for account_detail in account_details:
  55             for platform_detail in platform_details:
  56                 if platform_detail['platform_id'] == account_detail['platform_id']:
  57                     # taking user_hrn only from myslice account
  58                     # NOTE: we should later handle accounts filter_by auth_type= managed OR user
  59                     if 'myslice' in platform_detail['platform']:
  60                         account_config = json.loads(account_detail['config'])
  61                         user_hrn = account_config.get('user_hrn','N/A')
  62
  63
  64         #user_query  = Query().get('user').select('user_hrn').filter_by('user_hrn','==','$user_hrn')
  65         #user_hrn = execute_query(self.request, user_query)
  66         #self.user_hrn = user_hrn[0].get('user_hrn')
  67
  68
  69         page = Page(request)
  70         page.add_css_files ( [ "http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" ] )
  71
  72         if method == 'POST':
  73             self.errors = []
  74
  75             # The form has been submitted
  76             slice_name = request.POST.get('slice_name', '')
  77             authority_hrn = request.POST.get('authority_hrn', '')
  78             number_of_nodes = request.POST.get('number_of_nodes', '')
  79             purpose = request.POST.get('purpose', '')
  80             email = self.user_email
  81             cc_myself = True
  82
  83             if (authority_hrn is None or authority_hrn == ''):
  84                 self.errors.append('Please, select an authority')
  85             # What kind of slice name is valid?
  86             if (slice_name is None or slice_name == ''):
  87                 self.errors.append('Slice Name is mandatory')
  88
  89             if (purpose is None or purpose == ''):
  90                 self.errors.append('Purpose is mandatory')
  91
  92             if not self.errors:
  93                 ctx = {
  94                     'email': email,
  95                     'slice_name': slice_name,
  96                     'authority_hrn': authority_hrn,
  97                     'number_of_nodes': number_of_nodes,
  98                     'purpose': purpose,
  99                 }
 100                 s = PendingSlice(
 101                     slice_name      = slice_name,
 102                     user_hrn        = user_hrn,
 103                     authority_hrn   = authority_hrn,
 104                     number_of_nodes = number_of_nodes,
 105                     purpose         = purpose
 106                 )
 107                 s.save()
 108
 109                 # The recipients are the PI of the authority
 110                 recipients = authority_get_pi_emails(request, authority_hrn)
 111
 112                 if cc_myself:
 113                     recipients.append(email)
 114                 msg = render_to_string('slice-request-email.txt', ctx)
 115                 #print "email, msg, email, recipients", email , msg, email, recipients
 116                 send_mail("Onelab user %s requested a slice"%email , msg, email, recipients)
 117
 118                 self.template_name = 'slice-request-ack-view.html'
 119
 120                 return render(request, self.template, {'theme': self.theme}) # Redirect after POST
 121         template_env = {
 122             'username': request.user.email,
 123           'topmenu_items': topmenu_items_live('Request a slice', page),
 124           'errors': self.errors,
 125           'slice_name': request.POST.get('slice_name', ''),
 126           'authority_hrn': request.POST.get('authority_hrn', ''),
 127           'number_of_nodes': request.POST.get('number_of_nodes', ''),
 128           'purpose': request.POST.get('purpose', ''),
 129           'email': self.user_email,
 130           'user_hrn': user_hrn,
 131           'cc_myself': True,
 132           'authorities': authorities,
 133           'theme': self.theme
 134         }
 135         template_env.update(page.prelude_env ())
 136         return render(request, self.template, template_env)