castellan-ui/castellan_ui/content/opaque_data/forms.py

109 lines
4.1 KiB
Python

# 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.
import base64
import binascii
from django.utils.translation import ugettext_lazy as _
from castellan.common.objects import opaque_data
from horizon import exceptions
from horizon import forms
from horizon import messages
from castellan_ui.api import client
from castellan_ui.content import shared_forms
class ImportOpaqueData(forms.SelfHandlingForm):
name = forms.RegexField(required=False,
max_length=255,
label=_("Data Name"),
regex=shared_forms.NAME_REGEX,
error_messages=shared_forms.ERROR_MESSAGES)
source_type = forms.ChoiceField(
label=_('Source'),
required=False,
choices=[('file', _('File')),
('raw', _('Direct Input'))],
widget=forms.ThemableSelectWidget(
attrs={'class': 'switchable', 'data-slug': 'source'}))
object_file = forms.FileField(
label=_("Choose file"),
help_text=_("A local file to upload."),
widget=forms.FileInput(
attrs={'class': 'switched', 'data-switch-on': 'source',
'data-source-file': _('File')}),
required=False)
direct_input = forms.CharField(
label=_('Object Bytes'),
help_text=_('The bytes of the object, represented in hex.'),
widget=forms.widgets.Textarea(
attrs={'class': 'switched', 'data-switch-on': 'source',
'data-source-raw': _('Bytes')}),
required=False)
def __init__(self, request, *args, **kwargs):
super(ImportOpaqueData, self).__init__(request, *args, **kwargs)
def clean(self):
data = super(ImportOpaqueData, self).clean()
# The data can be missing based on particular upload
# conditions. Code defensively for it here...
data_file = data.get('object_file', None)
data_raw = data.get('direct_input', None)
if data_raw and data_file:
raise forms.ValidationError(
_("Cannot specify both file and direct input."))
if not data_raw and not data_file:
raise forms.ValidationError(
_("No input was provided for the object value."))
try:
if data_file:
data_bytes = self.files['object_file'].read()
else:
data_str = data['direct_input']
data_bytes = binascii.unhexlify(data_str)
data['object_bytes'] = base64.b64encode(data_bytes)
except Exception as e:
msg = _('There was a problem loading the object: %s. '
'Is the object valid and in the correct format?') % e
raise forms.ValidationError(msg)
return data
def handle(self, request, data):
try:
data_bytes = data.get('object_bytes')
data_uuid = client.import_object(
request,
data=data_bytes,
name=data['name'],
object_type=opaque_data.OpaqueData)
if data['name']:
data_identifier = data['name']
else:
data_identifier = data_uuid
messages.success(request,
_('Successfully imported object: %s')
% data_identifier)
return data_uuid
except Exception as e:
msg = _('Unable to import object: %s')
messages.error(msg % e)
exceptions.handle(request, ignore=True)
self.api_error(_('Unable to import object.'))
return False