# 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 os
from django.core.urlresolvers import reverse
from django import http
from django.utils.functional import cached_property # noqa
from django.utils.translation import ugettext_lazy as _
from django.views import generic
import six
from horizon import browsers
from horizon import exceptions
from horizon import forms
from horizon.utils import memoized
from openstack_dashboard import api
from openstack_dashboard.api import swift
from openstack_dashboard.dashboards.project.containers \
import browsers as project_browsers
from openstack_dashboard.dashboards.project.containers \
import forms as project_forms
from openstack_dashboard.dashboards.project.containers import utils
[docs]class NgIndexView(generic.TemplateView):
template_name = 'project/containers/ngindex.html'
[docs]class ContainerView(browsers.ResourceBrowserView):
browser_class = project_browsers.ContainerBrowser
template_name = "project/containers/index.html"
page_title = _("Containers")
[docs] def get_containers_data(self):
containers = []
self._more = None
marker = self.request.GET.get('marker', None)
try:
containers, self._more = api.swift.swift_get_containers(
self.request, marker=marker)
except Exception:
msg = _('Unable to retrieve container list.')
exceptions.handle(self.request, msg)
return containers
@cached_property
[docs] def objects(self):
"""Returns a list of objects given the subfolder's path.
The path is from the kwargs of the request.
"""
objects = []
self._more = None
marker = self.request.GET.get('marker', None)
container_name = self.kwargs['container_name']
subfolder = self.kwargs['subfolder_path']
prefix = None
if container_name:
self.navigation_selection = True
if subfolder:
prefix = subfolder
try:
objects, self._more = api.swift.swift_get_objects(
self.request,
container_name,
marker=marker,
prefix=prefix)
except Exception:
self._more = None
objects = []
msg = _('Unable to retrieve object list.')
exceptions.handle(self.request, msg)
return objects
[docs] def is_subdir(self, item):
content_type = "application/pseudo-folder"
return getattr(item, "content_type", None) == content_type
[docs] def is_placeholder(self, item):
object_name = getattr(item, "name", "")
return object_name.endswith(api.swift.FOLDER_DELIMITER)
[docs] def get_objects_data(self):
"""Returns a list of objects within the current folder."""
filtered_objects = [item for item in self.objects
if (not self.is_subdir(item) and
not self.is_placeholder(item))]
return filtered_objects
[docs] def get_subfolders_data(self):
"""Returns a list of subfolders within the current folder."""
filtered_objects = [item for item in self.objects
if self.is_subdir(item)]
return filtered_objects
[docs] def get_context_data(self, **kwargs):
context = super(ContainerView, self).get_context_data(**kwargs)
context['container_name'] = self.kwargs["container_name"]
context['subfolders'] = []
if self.kwargs["subfolder_path"]:
(parent, slash, folder) = self.kwargs["subfolder_path"] \
.strip('/').rpartition('/')
while folder:
path = "%s%s%s/" % (parent, slash, folder)
context['subfolders'].insert(0, (folder, path))
(parent, slash, folder) = parent.rpartition('/')
return context
[docs]class CreateView(forms.ModalFormView):
form_class = project_forms.CreateContainer
template_name = 'project/containers/create.html'
success_url = "horizon:project:containers:index"
page_title = _("Create Container")
[docs] def get_success_url(self):
parent = self.request.POST.get('parent', None)
if parent:
container, slash, remainder = parent.partition(
swift.FOLDER_DELIMITER)
args = (utils.wrap_delimiter(container),
utils.wrap_delimiter(remainder))
return reverse(self.success_url, args=args)
else:
container = utils.wrap_delimiter(self.request.POST['name'])
return reverse(self.success_url, args=[container])
[docs] def get_initial(self):
initial = super(CreateView, self).get_initial()
initial['parent'] = self.kwargs['container_name']
return initial
[docs]class CreatePseudoFolderView(forms.ModalFormView):
form_class = project_forms.CreatePseudoFolder
template_name = 'project/containers/create_pseudo_folder.html'
success_url = "horizon:project:containers:index"
page_title = _("Create Pseudo-folder")
[docs] def get_success_url(self):
container_name = self.request.POST['container_name']
return reverse(self.success_url,
args=(utils.wrap_delimiter(container_name),
self.request.POST.get('path', '')))
[docs] def get_initial(self):
return {"container_name": self.kwargs["container_name"],
"path": self.kwargs['subfolder_path']}
[docs] def get_context_data(self, **kwargs):
context = super(CreatePseudoFolderView, self). \
get_context_data(**kwargs)
context['container_name'] = self.kwargs["container_name"]
return context
[docs]class UploadView(forms.ModalFormView):
form_class = project_forms.UploadObject
template_name = 'project/containers/upload.html'
success_url = "horizon:project:containers:index"
page_title = _("Upload Objects")
[docs] def get_success_url(self):
container = utils.wrap_delimiter(self.request.POST['container_name'])
path = utils.wrap_delimiter(self.request.POST.get('path', ''))
args = (container, path)
return reverse(self.success_url, args=args)
[docs] def get_initial(self):
return {"container_name": self.kwargs["container_name"],
"path": self.kwargs['subfolder_path']}
[docs] def get_context_data(self, **kwargs):
context = super(UploadView, self).get_context_data(**kwargs)
context['container_name'] = self.kwargs["container_name"]
return context
[docs]def object_download(request, container_name, object_path):
try:
obj = api.swift.swift_get_object(request, container_name, object_path,
resp_chunk_size=swift.CHUNK_SIZE)
except Exception:
redirect = reverse("horizon:project:containers:index")
exceptions.handle(request,
_("Unable to retrieve object."),
redirect=redirect)
# Add the original file extension back on if it wasn't preserved in the
# name given to the object.
filename = object_path.rsplit(swift.FOLDER_DELIMITER)[-1]
if not os.path.splitext(obj.name)[1] and obj.orig_name:
name, ext = os.path.splitext(obj.orig_name)
filename = "%s%s" % (filename, ext)
response = http.StreamingHttpResponse(obj.data)
safe_name = filename.replace(",", "")
if six.PY2:
safe_name = safe_name.encode('utf-8')
response['Content-Disposition'] = 'attachment; filename="%s"' % safe_name
response['Content-Type'] = 'application/octet-stream'
response['Content-Length'] = obj.bytes
return response
[docs]class CopyView(forms.ModalFormView):
form_class = project_forms.CopyObject
template_name = 'project/containers/copy.html'
success_url = "horizon:project:containers:index"
page_title = _("Copy Object")
[docs] def get_success_url(self):
container = utils.wrap_delimiter(
self.request.POST['new_container_name'])
path = utils.wrap_delimiter(self.request.POST.get('path', ''))
args = (container, path)
return reverse(self.success_url, args=args)
@staticmethod
[docs] def get_copy_name(object_name):
filename, ext = os.path.splitext(object_name)
return "%s.copy%s" % (filename, ext)
[docs] def get_initial(self):
path = self.kwargs["subfolder_path"]
object_name = self.kwargs["object_name"]
orig = "%s%s" % (path or '', object_name)
return {"new_container_name": self.kwargs["container_name"],
"orig_container_name": self.kwargs["container_name"],
"orig_object_name": orig,
"path": path,
"new_object_name": self.get_copy_name(object_name)}
[docs] def get_context_data(self, **kwargs):
context = super(CopyView, self).get_context_data(**kwargs)
context['container_name'] = self.kwargs["container_name"]
context['object_name'] = self.kwargs["object_name"]
return context
[docs]class ContainerDetailView(forms.ModalFormMixin, generic.TemplateView):
template_name = 'project/containers/container_detail.html'
page_title = _("Container Details")
@memoized.memoized_method
[docs] def get_object(self):
try:
return api.swift.swift_get_container(
self.request,
self.kwargs["container_name"],
with_data=False)
except Exception:
redirect = reverse("horizon:project:containers:index")
exceptions.handle(self.request,
_('Unable to retrieve details.'),
redirect=redirect)
[docs] def get_context_data(self, **kwargs):
context = super(ContainerDetailView, self).get_context_data(**kwargs)
context['container'] = self.get_object()
return context
[docs]class ObjectDetailView(forms.ModalFormMixin, generic.TemplateView):
template_name = 'project/containers/object_detail.html'
page_title = _("Object Details")
@memoized.memoized_method
[docs] def get_object(self):
try:
return api.swift.swift_get_object(
self.request,
self.kwargs["container_name"],
self.kwargs["object_path"],
with_data=False)
except Exception:
redirect = reverse("horizon:project:containers:index")
exceptions.handle(self.request,
_('Unable to retrieve details.'),
redirect=redirect)
[docs] def get_context_data(self, **kwargs):
context = super(ObjectDetailView, self).get_context_data(**kwargs)
context['object'] = self.get_object()
return context
[docs]class UpdateObjectView(forms.ModalFormView):
form_class = project_forms.UpdateObject
template_name = 'project/containers/update.html'
success_url = "horizon:project:containers:index"
page_title = _("Update Object")
[docs] def get_success_url(self):
container = utils.wrap_delimiter(self.request.POST['container_name'])
path = utils.wrap_delimiter(self.request.POST.get('path', ''))
args = (container, path)
return reverse(self.success_url, args=args)
[docs] def get_initial(self):
return {"container_name": self.kwargs["container_name"],
"path": self.kwargs["subfolder_path"],
"name": self.kwargs["object_name"]}
[docs] def get_context_data(self, **kwargs):
context = super(UpdateObjectView, self).get_context_data(**kwargs)
context['container_name'] = self.kwargs["container_name"]
context['subfolder_path'] = self.kwargs["subfolder_path"]
context['object_name'] = self.kwargs["object_name"]
return context