mirror of
https://github.com/freedombox/FreedomBox.git
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146 lines
4.9 KiB
Python
146 lines
4.9 KiB
Python
#
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# This file is part of Plinth.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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"""
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Views for snapshot module.
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"""
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import json
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from django.contrib import messages
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from django.shortcuts import redirect
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from django.template.response import TemplateResponse
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from django.urls import reverse
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from django.utils.translation import ugettext as _
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from plinth import actions
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from plinth.errors import ActionError
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from plinth.modules import snapshot as snapshot_module
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from plinth.utils import yes_or_no
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from . import is_timeline_snapshots_enabled
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from .forms import SnapshotForm
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def index(request):
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"""Show snapshot list."""
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status = get_status()
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if request.method == 'POST':
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form = SnapshotForm(request.POST)
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if 'create' in request.POST:
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actions.superuser_run('snapshot', ['create'])
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messages.success(request, _('Created snapshot.'))
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if 'update' in request.POST and form.is_valid():
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update_configuration(request, status, form.cleaned_data)
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status = get_status()
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form = SnapshotForm(initial=status)
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else:
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form = SnapshotForm(initial=status)
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output = actions.superuser_run('snapshot', ['list'])
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snapshots = json.loads(output)
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return TemplateResponse(request, 'snapshot.html', {
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'title': snapshot_module.name,
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'description': snapshot_module.description,
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'snapshots': snapshots,
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'form': form
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})
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def update_configuration(request, old_status, new_status):
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"""Update configuration of snapshots."""
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try:
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key = 'enable_timeline_snapshots'
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if old_status[key] != new_status[key]:
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enable_timeline = yes_or_no(
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new_status['enable_timeline_snapshots'])
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actions.superuser_run(
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'snapshot',
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['configure', 'TIMELINE_CREATE={}'.format(enable_timeline)])
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messages.success(request,
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_('Timeline Snapshots configuration updated'))
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except ActionError as exception:
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messages.error(request,
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_('Action error: {0} [{1}] [{2}]').format(
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exception.args[0], exception.args[1],
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exception.args[2]))
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def delete(request, number):
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"""Show confirmation to delete a snapshot."""
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if request.method == 'POST':
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actions.superuser_run('snapshot', ['delete', number])
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messages.success(
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request, _('Deleted snapshot #{number}.').format(number=number))
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return redirect(reverse('snapshot:index'))
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output = actions.superuser_run('snapshot', ['list'])
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snapshots = json.loads(output)
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snapshot = next(s for s in snapshots if s['number'] == number)
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return TemplateResponse(request, 'snapshot_delete.html', {
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'title': _('Delete Snapshot'),
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'snapshot': snapshot
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})
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def delete_all(request):
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"""Show confirmation to delete all snapshots."""
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if request.method == 'POST':
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actions.superuser_run('snapshot', ['delete-all'])
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messages.success(request, _('Deleted all snapshots.'))
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return redirect(reverse('snapshot:index'))
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output = actions.superuser_run('snapshot', ['list'])
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snapshots = json.loads(output)
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return TemplateResponse(request, 'snapshot_delete_all.html', {
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'title': _('Delete Snapshots'),
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'snapshots': snapshots[1:]
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})
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def rollback(request, number):
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"""Show confirmation to rollback to a snapshot."""
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if request.method == 'POST':
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actions.superuser_run('snapshot', ['rollback', number])
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messages.success(
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request,
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_('Rolled back to snapshot #{number}.').format(number=number))
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messages.warning(
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request,
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_('The system must be restarted to complete the rollback.'))
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return redirect(reverse('power:restart'))
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output = actions.superuser_run('snapshot', ['list'])
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snapshots = json.loads(output)
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snapshot = None
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for current_snapshot in snapshots:
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if current_snapshot['number'] == number:
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snapshot = current_snapshot
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return TemplateResponse(request, 'snapshot_rollback.html', {
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'title': _('Rollback to Snapshot'),
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'snapshot': snapshot
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})
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def get_status():
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"""Get current status of snapshot configuration."""
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return {'enable_timeline_snapshots': is_timeline_snapshots_enabled()}
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