Source code for horizon.dashboards.nova.containers.views

# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2012 Nebula, Inc.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

"""
Views for managing Swift containers.
"""
import logging
import os

from django import http
from django.core.urlresolvers import reverse
from django.utils.translation import ugettext_lazy as _

from horizon import api
from horizon import exceptions
from horizon import forms
from horizon import tables
from .forms import CreateContainer, UploadObject, CopyObject
from .tables import ContainersTable, ObjectsTable


LOG = logging.getLogger(__name__)


class IndexView(tables.DataTableView):
    table_class = ContainersTable
[docs] template_name = 'nova/containers/index.html' def has_more_data(self, table): return self._more
[docs] def get_data(self): containers = []
[docs] self._more = None marker = self.request.GET.get('marker', None) try: containers, self._more = api.swift_get_containers(self.request, marker=marker) except: msg = _('Unable to retrieve container list.') exceptions.handle(self.request, msg) return containers class CreateView(forms.ModalFormView): form_class = CreateContainer
[docs] template_name = 'nova/containers/create.html' class ObjectIndexView(tables.DataTableView): table_class = ObjectsTable
[docs] template_name = 'nova/objects/index.html' def has_more_data(self, table): return self._more
[docs] def get_data(self): objects = []
[docs] self._more = None marker = self.request.GET.get('marker', None) container_name = self.kwargs['container_name'] try: objects, self._more = api.swift_get_objects(self.request, container_name, marker=marker) except: msg = _('Unable to retrieve object list.') exceptions.handle(self.request, msg) return objects def get_context_data(self, **kwargs): context = super(ObjectIndexView, self).get_context_data(**kwargs)
[docs] context['container_name'] = self.kwargs["container_name"] return context class UploadView(forms.ModalFormView): form_class = UploadObject
[docs] template_name = 'nova/objects/upload.html' def get_initial(self): return {"container_name": self.kwargs["container_name"]}
[docs] def get_context_data(self, **kwargs): context = super(UploadView, self).get_context_data(**kwargs)
[docs] context['container_name'] = self.kwargs["container_name"] return context def object_download(request, container_name, object_name): obj = api.swift.swift_get_object(request, container_name, object_name)
[docs] # Add the original file extension back on if it wasn't preserved in the # name given to the object. filename = object_name if not os.path.splitext(obj.name)[1]: name, ext = os.path.splitext(obj.metadata.get('orig-filename', '')) filename = "%s%s" % (object_name, ext) try: object_data = api.swift_get_object_data(request, container_name, object_name) except: redirect = reverse("horizon:nova:containers:index") exceptions.handle(request, _("Unable to retrieve object."), redirect=redirect) response = http.HttpResponse() safe_name = filename.encode('utf-8') response['Content-Disposition'] = 'attachment; filename=%s' % safe_name response['Content-Type'] = 'application/octet-stream' for data in object_data: response.write(data) return response class CopyView(forms.ModalFormView): form_class = CopyObject
[docs] template_name = 'nova/objects/copy.html' def get_form_kwargs(self): kwargs = super(CopyView, self).get_form_kwargs()
[docs] try: containers = api.swift_get_containers(self.request) except: redirect = reverse("horizon:nova:containers:index") exceptions.handle(self.request, _('Unable to list containers.'), redirect=redirect) kwargs['containers'] = [(c.name, c.name) for c in containers[0]] return kwargs def get_initial(self): return {"new_container_name": self.kwargs["container_name"],
[docs] "orig_container_name": self.kwargs["container_name"], "orig_object_name": self.kwargs["object_name"], "new_object_name": "%s copy" % self.kwargs["object_name"]} def get_context_data(self, **kwargs): context = super(CopyView, self).get_context_data(**kwargs)
[docs] context['container_name'] = self.kwargs["container_name"] context['object_name'] = self.kwargs["object_name"] return context