Sunil Mohan Adapa 5714fc6f51
storage: Show low disk space warning using notifications API
Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
2020-02-10 18:13:31 -05:00

127 lines
3.9 KiB
Python

#
# This file is part of FreedomBox.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
"""
Views for storage module.
"""
import json
import logging
import urllib.parse
from django.contrib import messages
from django.shortcuts import redirect
from django.template.response import TemplateResponse
from django.urls import reverse
from django.utils.translation import ugettext as _
from django.views.decorators.http import require_POST
from plinth import actions, views
from plinth.modules import storage
from . import get_error_message
logger = logging.getLogger(__name__)
class StorageAppView(views.AppView):
"""Show storage information."""
name = storage.name
description = storage.description
manual_page = storage.manual_page
app_id = 'storage'
template_name = 'storage.html'
show_status_block = False
def get_context_data(self, *args, **kwargs):
"""Return template context data."""
context = super().get_context_data(*args, **kwargs)
disks = storage.get_disks()
root_device = storage.get_root_device(disks)
expandable_root_size = storage.is_expandable(root_device)
expandable_root_size = storage.format_bytes(expandable_root_size)
context['disks'] = disks
context['expandable_root_size'] = expandable_root_size
return context
def expand(request):
"""Warn and expand the root partition."""
disks = storage.get_disks()
root_device = storage.get_root_device(disks)
if request.method == 'POST':
expand_partition(request, root_device)
return redirect(reverse('storage:index'))
expandable_root_size = storage.is_expandable(root_device)
expandable_root_size = storage.format_bytes(expandable_root_size)
return TemplateResponse(
request, 'storage_expand.html', {
'title': _('Expand Root Partition'),
'expandable_root_size': expandable_root_size
})
def expand_partition(request, device):
"""Expand the partition."""
try:
storage.expand_partition(device)
except Exception as exception:
messages.error(
request,
_('Error expanding partition: {exception}').format(
exception=exception))
else:
messages.success(request, _('Partition expanded successfully.'))
@require_POST
def eject(request, device_path):
"""Eject a device, given its path.
Device path is quoted with slashes written as %2F.
"""
device_path = urllib.parse.unquote(device_path)
try:
drive = json.loads(
actions.superuser_run('storage', ['eject', device_path]))
if drive:
messages.success(
request,
_('{drive_vendor} {drive_model} can be safely unplugged.').
format(drive_vendor=drive['vendor'],
drive_model=drive['model']))
else:
messages.success(request, _('Device can be safely unplugged.'))
except Exception as exception:
try:
message = get_error_message(exception)
except AttributeError:
message = str(exception)
logger.exception('Error ejecting device - %s', message)
messages.error(
request,
_('Error ejecting device: {error_message}').format(
error_message=message))
return redirect(reverse('storage:index'))