dashboard: move TransferOwnership views to utils.py

circle/dashboard/urls.py

@@ -27,8 +27,8 @@ from .views import (
     MyPreferencesView, NodeAddTraitView, NodeCreate, NodeDelete,
     NodeDetailView, NodeList, NodeStatus,
     NotificationView, PortDelete, TemplateAclUpdateView, TemplateCreate,
-    TemplateDelete, TemplateDetail, TemplateList, TransferOwnershipConfirmView,
-    TransferOwnershipView, vm_activity, VmCreate, VmDetailView,
+    TemplateDelete, TemplateDetail, TemplateList,
+    vm_activity, VmCreate, VmDetailView,
     VmDetailVncTokenView, VmList,
     DiskRemoveView, get_disk_download_status, InterfaceDeleteView,
     GroupRemoveUserView,
@@ -48,6 +48,8 @@ from .views import (
     toggle_template_tutorial,
     ClientCheck, TokenLogin,
     VmGraphView, NodeGraphView, NodeListGraphView,
+    TransferInstanceOwnershipView, TransferInstanceOwnershipConfirmView,
+    TransferTemplateOwnershipView, TransferTemplateOwnershipConfirmView,
 )
 from .views.vm import vm_ops, vm_mass_ops
 from .views.node import node_ops
@@ -86,7 +88,7 @@ urlpatterns = patterns(
         name='dashboard.views.detail-vnc'),
     url(r'^vm/(?P<pk>\d+)/acl/$', AclUpdateView.as_view(model=Instance),
         name='dashboard.views.vm-acl'),
-    url(r'^vm/(?P<pk>\d+)/tx/$', TransferOwnershipView.as_view(),
+    url(r'^vm/(?P<pk>\d+)/tx/$', TransferInstanceOwnershipView.as_view(),
         name='dashboard.views.vm-transfer-ownership'),
     url(r'^vm/list/$', VmList.as_view(), name='dashboard.views.vm-list'),
     url(r'^vm/create/$', VmCreate.as_view(),
@@ -108,7 +110,8 @@ urlpatterns = patterns(
         name='dashboard.views.node-detail'),
     url(r'^node/(?P<pk>\d+)/add-trait/$', NodeAddTraitView.as_view(),
         name='dashboard.views.node-addtrait'),
-    url(r'^tx/(?P<key>.*)/?$', TransferOwnershipConfirmView.as_view(),
+    url(r'^vm/tx/(?P<key>.*)/?$',
+        TransferInstanceOwnershipConfirmView.as_view(),
         name='dashboard.views.vm-transfer-ownership-confirm'),
     url(r'^node/delete/(?P<pk>\d+)/$', NodeDelete.as_view(),
         name="dashboard.views.delete-node"),

circle/dashboard/views/util.py

@@ -24,14 +24,15 @@ from urlparse import urljoin
 
 from django.conf import settings
 from django.contrib.auth.models import User, Group
-from django.core.exceptions import PermissionDenied
+from django.core import signing
+from django.core.exceptions import PermissionDenied, SuspiciousOperation
 from django.core.urlresolvers import reverse
 from django.contrib import messages
 from django.contrib.auth.views import redirect_to_login
 from django.db.models import Q
-from django.http import HttpResponse, HttpResponseRedirect
-from django.shortcuts import redirect
-from django.utils.translation import ugettext_lazy as _
+from django.http import HttpResponse, Http404, HttpResponseRedirect
+from django.shortcuts import redirect, render
+from django.utils.translation import ugettext_lazy as _, ugettext_noop
 from django.views.generic import DetailView, View
 from django.views.generic.detail import SingleObjectMixin
 
@@ -40,7 +41,8 @@ from braces.views._access import AccessMixin
 from celery.exceptions import TimeoutError
 
 from common.models import HumanReadableException, HumanReadableObject
-from ..models import GroupProfile
+from ..models import GroupProfile, Profile
+from ..forms import TransferOwnershipForm
 
 logger = logging.getLogger(__name__)
 saml_available = hasattr(settings, "SAML_CONFIG")
@@ -563,3 +565,132 @@ class GraphMixin(object):
 
 def absolute_url(url):
     return urljoin(settings.DJANGO_URL, url)
+
+
+class TransferOwnershipView(CheckedDetailView, DetailView):
+    def get_template_names(self):
+        if self.request.is_ajax():
+            return ['dashboard/_modal.html']
+        else:
+            return ['dashboard/nojs-wrapper.html']
+
+    def get_context_data(self, *args, **kwargs):
+        context = super(TransferOwnershipView, self).get_context_data(
+            *args, **kwargs)
+        context['form'] = TransferOwnershipForm()
+        context.update({
+            'box_title': _("Transfer ownership"),
+            'ajax_title': True,
+            'template': self.template,
+        })
+        return context
+
+    def post(self, request, *args, **kwargs):
+        form = TransferOwnershipForm(request.POST)
+        if not form.is_valid():
+            return self.get(request)
+        try:
+            new_owner = search_user(request.POST['name'])
+        except User.DoesNotExist:
+            messages.error(request, _('Can not find specified user.'))
+            return self.get(request, *args, **kwargs)
+        except KeyError:
+            raise SuspiciousOperation()
+
+        obj = self.get_object()
+        if not (obj.owner == request.user or
+                request.user.is_superuser):
+            raise PermissionDenied()
+
+        token = signing.dumps(
+            (obj.pk, new_owner.pk),
+            salt=self.confirm_view.get_salt())
+        token_path = reverse(self.token_url, args=[token])
+        try:
+            new_owner.profile.notify(
+                ugettext_noop('Ownership offer'),
+                self.notification_msg,
+                {'instance': obj, 'token': token_path})
+        except Profile.DoesNotExist:
+            messages.error(request, _('Can not notify selected user.'))
+        else:
+            messages.success(request,
+                             _('User %s is notified about the offer.') % (
+                                 unicode(new_owner), ))
+
+        return redirect(obj.get_absolute_url())
+
+
+class TransferOwnershipConfirmView(LoginRequiredMixin, View):
+    """User can accept an ownership offer."""
+
+    max_age = 3 * 24 * 3600
+    success_message = _("Ownership successfully transferred to you.")
+
+    @classmethod
+    def get_salt(cls):
+        return unicode(cls) + unicode(cls.model)
+
+    def get(self, request, key, *args, **kwargs):
+        """Confirm ownership transfer based on token.
+        """
+        logger.debug('Confirm dialog for token %s.', key)
+        try:
+            instance, new_owner = self.get_instance(key, request.user)
+        except PermissionDenied:
+            messages.error(request, _('This token is for an other user.'))
+            raise
+        except SuspiciousOperation:
+            messages.error(request, _('This token is invalid or has expired.'))
+            raise PermissionDenied()
+        return render(request, self.template,
+                      dictionary={'instance': instance, 'key': key})
+
+    def change_owner(self, instance, new_owner):
+        instance.owner = new_owner
+        instance.clean()
+        instance.save()
+
+    def post(self, request, key, *args, **kwargs):
+        """Really transfer ownership based on token.
+        """
+        instance, owner = self.get_instance(key, request.user)
+
+        old = instance.owner
+        self.change_owner(instance, request.user)
+        messages.success(request, self.success_message)
+        logger.info('Ownership of %s transferred from %s to %s.',
+                    unicode(instance), unicode(old), unicode(request.user))
+        if old.profile:
+            old.profile.notify(
+                ugettext_noop('Ownership accepted'),
+                ugettext_noop('Your ownership offer of %(instance)s has been '
+                              'accepted by %(user)s.'),
+                {'instance': instance})
+        return redirect(instance.get_absolute_url())
+
+    def get_instance(self, key, user):
+        """Get object based on signed token.
+        """
+        try:
+            instance, new_owner = (
+                signing.loads(key, max_age=self.max_age,
+                              salt=self.get_salt()))
+        except (signing.BadSignature, ValueError, TypeError) as e:
+            logger.error('Tried invalid token. Token: %s, user: %s. %s',
+                         key, unicode(user), unicode(e))
+            raise SuspiciousOperation()
+
+        try:
+            instance = self.model.objects.get(id=instance)
+        except self.model.DoesNotExist as e:
+            logger.error('Tried token to nonexistent instance %d. '
+                         'Token: %s, user: %s. %s',
+                         instance, key, unicode(user), unicode(e))
+            raise Http404()
+
+        if new_owner != user.pk:
+            logger.error('%s (%d) tried the token for %s. Token: %s.',
+                         unicode(user), user.pk, new_owner, key)
+            raise PermissionDenied()
+        return (instance, new_owner)

circle/dashboard/views/vm.py

@@ -29,7 +29,7 @@ from django.core import signing
 from django.core.exceptions import PermissionDenied, SuspiciousOperation
 from django.core.urlresolvers import reverse, reverse_lazy
 from django.http import HttpResponse, Http404, HttpResponseRedirect
-from django.shortcuts import redirect, get_object_or_404, render
+from django.shortcuts import redirect, get_object_or_404
 from django.template import RequestContext
 from django.template.loader import render_to_string
 from django.utils.translation import (
@@ -37,7 +37,7 @@ from django.utils.translation import (
 )
 from django.views.decorators.http import require_GET
 from django.views.generic import (
-    UpdateView, ListView, TemplateView, DeleteView, DetailView, View,
+    UpdateView, ListView, TemplateView, DeleteView
 )
 
 from braces.views import SuperuserRequiredMixin, LoginRequiredMixin
@@ -54,16 +54,17 @@ from vm.models import (
 )
 from .util import (
     CheckedDetailView, AjaxOperationMixin, OperationView, AclUpdateView,
-    FormOperationMixin, FilterMixin, search_user, GraphMixin,
+    FormOperationMixin, FilterMixin, GraphMixin,
+    TransferOwnershipConfirmView, TransferOwnershipView,
 )
 from ..forms import (
     AclUserOrGroupAddForm, VmResourcesForm, TraitsForm, RawDataForm,
     VmAddInterfaceForm, VmCreateDiskForm, VmDownloadDiskForm, VmSaveForm,
     VmRenewForm, VmStateChangeForm, VmListSearchForm, VmCustomizeForm,
-    TransferOwnershipForm, VmDiskResizeForm, RedeployForm, VmDiskRemoveForm,
+    VmDiskResizeForm, RedeployForm, VmDiskRemoveForm,
     VmMigrateForm, VmDeployForm,
 )
-from ..models import Favourite, Profile
+from ..models import Favourite
 
 logger = logging.getLogger(__name__)
 
@@ -1306,139 +1307,29 @@ class FavouriteView(TemplateView):
             return HttpResponse("Added.")
 
 
-class TransferOwnershipView(CheckedDetailView, DetailView):
+class TransferInstanceOwnershipConfirmView(TransferOwnershipConfirmView):
+    template = "dashboard/confirm/transfer-instance-ownership.html"
     model = Instance
 
-    def get_template_names(self):
-        if self.request.is_ajax():
-            return ['dashboard/_modal.html']
-        else:
-            return ['dashboard/nojs-wrapper.html']
-
-    def get_context_data(self, *args, **kwargs):
-        context = super(TransferOwnershipView, self).get_context_data(
-            *args, **kwargs)
-        context['form'] = TransferOwnershipForm()
-        context.update({
-            'box_title': _("Transfer ownership"),
-            'ajax_title': True,
-            'template': "dashboard/vm-detail/tx-owner.html",
-        })
-        return context
-
-    def post(self, request, *args, **kwargs):
-        form = TransferOwnershipForm(request.POST)
-        if not form.is_valid():
-            return self.get(request)
-        try:
-            new_owner = search_user(request.POST['name'])
-        except User.DoesNotExist:
-            messages.error(request, _('Can not find specified user.'))
-            return self.get(request, *args, **kwargs)
-        except KeyError:
-            raise SuspiciousOperation()
-
-        obj = self.get_object()
-        if not (obj.owner == request.user or
-                request.user.is_superuser):
-            raise PermissionDenied()
-
-        token = signing.dumps((obj.pk, new_owner.pk),
-                              salt=TransferOwnershipConfirmView.get_salt())
-        token_path = reverse(
-            'dashboard.views.vm-transfer-ownership-confirm', args=[token])
-        try:
-            new_owner.profile.notify(
-                ugettext_noop('Ownership offer'),
-                ugettext_noop('%(user)s offered you to take the ownership of '
-                              'his/her virtual machine called %(instance)s. '
-                              '<a href="%(token)s" '
-                              'class="btn btn-success btn-small">Accept</a>'),
-                {'instance': obj, 'token': token_path})
-        except Profile.DoesNotExist:
-            messages.error(request, _('Can not notify selected user.'))
-        else:
-            messages.success(request,
-                             _('User %s is notified about the offer.') % (
-                                 unicode(new_owner), ))
-
-        return redirect(reverse_lazy("dashboard.views.detail",
-                                     kwargs={'pk': obj.pk}))
+    def change_owner(self, instance, new_owner):
+        with instance.activity(
+            code_suffix='ownership-transferred',
+                readable_name=ugettext_noop("transfer ownership"),
+                concurrency_check=False, user=new_owner):
+            super(TransferInstanceOwnershipConfirmView, self).change_owner(
+                instance, new_owner)
 
 
-class TransferOwnershipConfirmView(LoginRequiredMixin, View):
-    """User can accept an ownership offer."""
-
-    max_age = 3 * 24 * 3600
-    success_message = _("Ownership successfully transferred to you.")
-
-    @classmethod
-    def get_salt(cls):
-        return unicode(cls)
-
-    def get(self, request, key, *args, **kwargs):
-        """Confirm ownership transfer based on token.
-        """
-        logger.debug('Confirm dialog for token %s.', key)
-        try:
-            instance, new_owner = self.get_instance(key, request.user)
-        except PermissionDenied:
-            messages.error(request, _('This token is for an other user.'))
-            raise
-        except SuspiciousOperation:
-            messages.error(request, _('This token is invalid or has expired.'))
-            raise PermissionDenied()
-        return render(request,
-                      "dashboard/confirm/base-transfer-ownership.html",
-                      dictionary={'instance': instance, 'key': key})
-
-    def post(self, request, key, *args, **kwargs):
-        """Really transfer ownership based on token.
-        """
-        instance, owner = self.get_instance(key, request.user)
-
-        old = instance.owner
-        with instance.activity(code_suffix='ownership-transferred',
-                               concurrency_check=False, user=request.user):
-            instance.owner = request.user
-            instance.clean()
-            instance.save()
-        messages.success(request, self.success_message)
-        logger.info('Ownership of %s transferred from %s to %s.',
-                    unicode(instance), unicode(old), unicode(request.user))
-        if old.profile:
-            old.profile.notify(
-                ugettext_noop('Ownership accepted'),
-                ugettext_noop('Your ownership offer of %(instance)s has been '
-                              'accepted by %(user)s.'),
-                {'instance': instance})
-        return redirect(instance.get_absolute_url())
-
-    def get_instance(self, key, user):
-        """Get object based on signed token.
-        """
-        try:
-            instance, new_owner = (
-                signing.loads(key, max_age=self.max_age,
-                              salt=self.get_salt()))
-        except (signing.BadSignature, ValueError, TypeError) as e:
-            logger.error('Tried invalid token. Token: %s, user: %s. %s',
-                         key, unicode(user), unicode(e))
-            raise SuspiciousOperation()
-
-        try:
-            instance = Instance.objects.get(id=instance)
-        except Instance.DoesNotExist as e:
-            logger.error('Tried token to nonexistent instance %d. '
-                         'Token: %s, user: %s. %s',
-                         instance, key, unicode(user), unicode(e))
-            raise Http404()
-
-        if new_owner != user.pk:
-            logger.error('%s (%d) tried the token for %s. Token: %s.',
-                         unicode(user), user.pk, new_owner, key)
-            raise PermissionDenied()
-        return (instance, new_owner)
+class TransferInstanceOwnershipView(TransferOwnershipView):
+    confirm_view = TransferInstanceOwnershipConfirmView
+    model = Instance
+    notification_msg = ugettext_noop(
+        '%(user)s offered you to take the ownership of '
+        'his/her virtual machine called %(instance)s. '
+        '<a href="%(token)s" '
+        'class="btn btn-success btn-small">Accept</a>')
+    token_url = 'dashboard.views.vm-transfer-ownership-confirm'
+    template = "dashboard/vm-detail/tx-owner.html"
 
 
 @login_required