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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2011 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
from django import http
from django import template
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django import shortcuts
from django.shortcuts import render_to_response
from django.utils.translation import ugettext as _
from django_openstack import api
from django_openstack import forms
LOG = logging.getLogger('django_openstack.dash')
class FilterObjects(forms.SelfHandlingForm):
container_name = forms.CharField(widget=forms.HiddenInput())
object_prefix = forms.CharField(required=False)
def handle(self, request, data):
object_prefix = data['object_prefix'] or None
objects = api.swift_get_objects(request,
data['container_name'],
prefix=object_prefix)
if not objects:
messages.info(request,
_('There are no objects matching that prefix in %s') %
data['container_name'])
return objects
class DeleteObject(forms.SelfHandlingForm):
object_name = forms.CharField(widget=forms.HiddenInput())
container_name = forms.CharField(widget=forms.HiddenInput())
def handle(self, request, data):
api.swift_delete_object(
request,
data['container_name'],
data['object_name'])
messages.info(request,
_('Successfully deleted object: %s') %
data['object_name'])
return shortcuts.redirect(request.build_absolute_uri())
class UploadObject(forms.SelfHandlingForm):
name = forms.CharField(max_length="255", label=_("Object Name"))
object_file = forms.FileField(label=_("File"))
container_name = forms.CharField(widget=forms.HiddenInput())
def handle(self, request, data):
api.swift_upload_object(
request,
data['container_name'],
data['name'],
self.files['object_file'].read())
messages.success(request, _("Object was successfully uploaded."))
return shortcuts.redirect(request.build_absolute_uri())
class CopyObject(forms.SelfHandlingForm):
new_container_name = forms.ChoiceField(
label=_("Container to store object in"))
new_object_name = forms.CharField(max_length="255",
label=_("New object name"))
orig_container_name = forms.CharField(widget=forms.HiddenInput())
orig_object_name = forms.CharField(widget=forms.HiddenInput())
def __init__(self, *args, **kwargs):
containers = kwargs.pop('containers')
super(CopyObject, self).__init__(*args, **kwargs)
self.fields['new_container_name'].choices = containers
def handle(self, request, data):
orig_container_name = data['orig_container_name']
orig_object_name = data['orig_object_name']
new_container_name = data['new_container_name']
new_object_name = data['new_object_name']
api.swift_copy_object(request, orig_container_name,
orig_object_name, new_container_name,
new_object_name)
messages.success(request,
_('Object was successfully copied to %(container)s\%(obj)s') %
{"container": new_container_name, "obj": new_object_name})
return shortcuts.redirect(request.build_absolute_uri())
@login_required
def index(request, tenant_id, container_name):
marker = request.GET.get('marker', None)
delete_form, handled = DeleteObject.maybe_handle(request)
if handled:
return handled
filter_form, objects = FilterObjects.maybe_handle(request)
if objects is None:
filter_form.fields['container_name'].initial = container_name
objects = api.swift_get_objects(request, container_name, marker=marker)
delete_form.fields['container_name'].initial = container_name
return render_to_response(
'django_openstack/dash/objects/index.html', {
'container_name': container_name,
'objects': objects,
'delete_form': delete_form,
'filter_form': filter_form,
}, context_instance=template.RequestContext(request))
@login_required
def upload(request, tenant_id, container_name):
form, handled = UploadObject.maybe_handle(request)
if handled:
return handled
form.fields['container_name'].initial = container_name
return render_to_response(
'django_openstack/dash/objects/upload.html', {
'container_name': container_name,
'upload_form': form,
}, context_instance=template.RequestContext(request))
@login_required
def download(request, tenant_id, container_name, object_name):
object_data = api.swift_get_object_data(
request, container_name, object_name)
response = http.HttpResponse()
response['Content-Disposition'] = 'attachment; filename=%s' % \
object_name
for data in object_data:
response.write(data)
return response
@login_required
def copy(request, tenant_id, container_name, object_name):
containers = \
[(c.name, c.name) for c in api.swift_get_containers(
request)]
form, handled = CopyObject.maybe_handle(request,
containers=containers)
if handled:
return handled
form.fields['new_container_name'].initial = container_name
form.fields['orig_container_name'].initial = container_name
form.fields['orig_object_name'].initial = object_name
return render_to_response(
'django_openstack/dash/objects/copy.html',
{'container_name': container_name,
'object_name': object_name,
'copy_form': form},
context_instance=template.RequestContext(request))
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