mirror of
https://github.com/freedombox/FreedomBox.git
synced 2026-01-21 07:55:00 +00:00
f1060fbf6b
Closes: #2316. Tests: - Go to to power app. There is no menu. - Go to firewall app. There is a menu item but no backup and restore items present. - Go to bepasty app. There are backup and restore menu items in menu. Clicking backup items takes us to create backup page with only Bepasty app selected. Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org> [jvalleroy: Fix CSS classes for new menu items] Signed-off-by: James Valleroy <jvalleroy@mailbox.org> Reviewed-by: James Valleroy <jvalleroy@mailbox.org>
458 lines
15 KiB
Python
458 lines
15 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
|
|
"""
|
|
Main FreedomBox views.
|
|
"""
|
|
|
|
import datetime
|
|
import time
|
|
import urllib.parse
|
|
|
|
from django.contrib import messages
|
|
from django.core.exceptions import ImproperlyConfigured
|
|
from django.http import Http404, HttpResponseBadRequest, HttpResponseRedirect
|
|
from django.template.response import TemplateResponse
|
|
from django.urls import reverse
|
|
from django.utils.translation import gettext as _
|
|
from django.views.generic import TemplateView
|
|
from django.views.generic.edit import FormView
|
|
from stronghold.decorators import public
|
|
|
|
from plinth import app as app_module
|
|
from plinth.daemon import app_is_running
|
|
from plinth.modules.config import get_advanced_mode
|
|
from plinth.modules.firewall.components import get_port_forwarding_info
|
|
from plinth.package import Packages
|
|
from plinth.translation import get_language_from_request, set_language
|
|
|
|
from . import forms, frontpage, operation, package, setup
|
|
|
|
REDIRECT_FIELD_NAME = 'next'
|
|
|
|
|
|
def is_safe_url(url):
|
|
"""Check if the URL is safe to redirect to.
|
|
|
|
Based on Django internal utility removed in Django 4.0.
|
|
|
|
"""
|
|
if url is not None:
|
|
url = url.strip()
|
|
|
|
if not url:
|
|
return False
|
|
|
|
if '\\' in url or url.startswith('///'):
|
|
return False
|
|
|
|
try:
|
|
result = urllib.parse.urlparse(url)
|
|
except ValueError:
|
|
return False
|
|
|
|
# Only accept URLs to the same site and scheme.
|
|
if result.scheme or result.netloc:
|
|
return False
|
|
|
|
return True
|
|
|
|
|
|
def _get_redirect_url_from_param(request):
|
|
"""Return the redirect URL from 'next' GET/POST param."""
|
|
redirect_to = request.GET.get(REDIRECT_FIELD_NAME, '')
|
|
redirect_to = request.POST.get(REDIRECT_FIELD_NAME, redirect_to)
|
|
if is_safe_url(redirect_to):
|
|
return redirect_to
|
|
|
|
return reverse('index')
|
|
|
|
|
|
@public
|
|
def index(request):
|
|
"""Serve the main index page."""
|
|
username = str(request.user) if request.user.is_authenticated else None
|
|
shortcuts = frontpage.Shortcut.list(username)
|
|
selected = request.GET.get('selected')
|
|
|
|
selected_shortcut = [
|
|
shortcut for shortcut in shortcuts if shortcut.component_id == selected
|
|
]
|
|
selected_shortcut = selected_shortcut[0] if selected_shortcut else None
|
|
|
|
return TemplateResponse(
|
|
request, 'index.html', {
|
|
'title': _('FreedomBox'),
|
|
'shortcuts': shortcuts,
|
|
'selected_shortcut': selected_shortcut,
|
|
})
|
|
|
|
|
|
class AppsIndexView(TemplateView):
|
|
"""View for apps index"""
|
|
template_name = 'apps.html'
|
|
|
|
def get_context_data(self, *args, **kwargs):
|
|
context = super().get_context_data(*args, **kwargs)
|
|
context['show_disabled'] = True
|
|
context['advanced_mode'] = get_advanced_mode()
|
|
return context
|
|
|
|
|
|
def system_index(request):
|
|
"""Serve the system index page."""
|
|
return TemplateResponse(request, 'system.html',
|
|
{'advanced_mode': get_advanced_mode()})
|
|
|
|
|
|
class LanguageSelectionView(FormView):
|
|
"""View for language selection"""
|
|
form_class = forms.LanguageSelectionForm
|
|
template_name = 'language-selection.html'
|
|
|
|
def get_initial(self):
|
|
"""Return the initial values for the form."""
|
|
return {'language': get_language_from_request(self.request)}
|
|
|
|
def form_valid(self, form):
|
|
"""Set or reset the current language."""
|
|
response = super().form_valid(form)
|
|
set_language(self.request, response, form.cleaned_data['language'])
|
|
return response
|
|
|
|
def get_success_url(self):
|
|
"""Return the URL in the next parameter or home page."""
|
|
return _get_redirect_url_from_param(self.request)
|
|
|
|
|
|
class AppView(FormView):
|
|
"""A generic view for showing an app's main page.
|
|
|
|
The view and it's template may be customized but by default show the
|
|
following:
|
|
|
|
* Icon for the app
|
|
* Name of the app
|
|
* Description of the app
|
|
* Link to the manual page for the app
|
|
* A button to enable/disable the app
|
|
* A toolbar with common actions such as 'Run diagnostics'
|
|
* A status section showing the running status of the app
|
|
* A form for configuring the app
|
|
|
|
The following class properties are available on the view:
|
|
|
|
'app_id' is the mandatory property to set the ID of the app. It is used to
|
|
retrieve the App instance for the app that is needed for basic information
|
|
and operations such as enabling/disabling the app.
|
|
|
|
'form_class' is the Django form class that is used by this view. It may be
|
|
None if the app does not have a configuration form. Default is None.
|
|
|
|
'template_name' is the template used to render this view. By default it is
|
|
app.html. It may be overridden with a template that derives from app.html
|
|
to customize the appearance of the app to achieve more complex presentation
|
|
instead of the simple appearance provided by default.
|
|
|
|
"""
|
|
form_class = None
|
|
app_id = None
|
|
template_name = 'app.html'
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
"""Initialize the view."""
|
|
super().__init__(*args, **kwargs)
|
|
self._common_status = None
|
|
|
|
def dispatch(self, request, *args, **kwargs):
|
|
"""If operations are running on the app, use a different view."""
|
|
operations = operation.manager.filter(self.app.app_id)
|
|
if operations:
|
|
view = AppOperationsView.as_view(app_id=self.app.app_id)
|
|
return view(request, *args, **kwargs)
|
|
|
|
return super().dispatch(request, *args, **kwargs)
|
|
|
|
def post(self, request, *args, **kwargs):
|
|
"""Handle app enable/disable button separately."""
|
|
if 'app_enable_disable_button' not in request.POST:
|
|
return super().post(request, *args, **kwargs)
|
|
|
|
form = forms.AppEnableDisableForm(data=self.request.POST)
|
|
if form.is_valid():
|
|
return self.enable_disable_form_valid(form)
|
|
|
|
return HttpResponseBadRequest('Invalid form submission')
|
|
|
|
@property
|
|
def success_url(self):
|
|
return self.request.path
|
|
|
|
@property
|
|
def app(self):
|
|
"""Return the app for which this view is configured."""
|
|
if not self.app_id:
|
|
raise ImproperlyConfigured('Missing attribute: app_id')
|
|
|
|
return app_module.App.get(self.app_id)
|
|
|
|
def get_form(self, *args, **kwargs):
|
|
"""Return an instance of this view's form.
|
|
|
|
Also the form_class for this view to be None.
|
|
|
|
"""
|
|
if not self.form_class:
|
|
return None
|
|
|
|
return super().get_form(*args, **kwargs)
|
|
|
|
def _get_common_status(self):
|
|
"""Return the status needed for form and template.
|
|
|
|
Avoid multiple queries to expensive operations such as
|
|
app.is_enabled().
|
|
|
|
"""
|
|
if self._common_status:
|
|
return self._common_status
|
|
|
|
self._common_status = {'is_enabled': self.app.is_enabled()}
|
|
return self._common_status
|
|
|
|
def get_initial(self):
|
|
"""Return the status of the app to fill in the form."""
|
|
initial = super().get_initial()
|
|
initial.update(self._get_common_status())
|
|
return initial
|
|
|
|
def form_valid(self, form):
|
|
"""Enable/disable a service and set messages."""
|
|
if not self.request._messages._queued_messages:
|
|
messages.info(self.request, _('Setting unchanged'))
|
|
|
|
return super().form_valid(form)
|
|
|
|
def get_enable_disable_form(self):
|
|
"""Return an instance of the app enable/disable form.
|
|
|
|
If the app can't be disabled by the user, return None.
|
|
|
|
"""
|
|
if not self.app.can_be_disabled:
|
|
return None
|
|
|
|
initial = {
|
|
'should_enable': not self._get_common_status()['is_enabled']
|
|
}
|
|
return forms.AppEnableDisableForm(initial=initial)
|
|
|
|
def enable_disable_form_valid(self, form):
|
|
"""Form handling for enabling / disabling apps."""
|
|
should_enable = form.cleaned_data['should_enable']
|
|
if should_enable != self.app.is_enabled():
|
|
if should_enable:
|
|
self.app.enable()
|
|
else:
|
|
self.app.disable()
|
|
|
|
return HttpResponseRedirect(self.request.path)
|
|
|
|
def get_context_data(self, *args, **kwargs):
|
|
"""Add service to the context data."""
|
|
context = super().get_context_data(*args, **kwargs)
|
|
context.update(self._get_common_status())
|
|
context['app_id'] = self.app.app_id
|
|
context['is_running'] = app_is_running(self.app)
|
|
context['app_info'] = self.app.info
|
|
context['has_diagnostics'] = self.app.has_diagnostics()
|
|
context['port_forwarding_info'] = get_port_forwarding_info(self.app)
|
|
context['app_enable_disable_form'] = self.get_enable_disable_form()
|
|
context['show_uninstall'] = not self.app.info.is_essential
|
|
context['refresh_page_sec'] = None
|
|
|
|
from plinth.modules.firewall.components import Firewall
|
|
context['firewall'] = self.app.get_components_of_type(Firewall)
|
|
|
|
from plinth.modules.backups.components import BackupRestore
|
|
context['has_backup_restore'] = any([
|
|
component.has_data
|
|
for component in self.app.get_components_of_type(BackupRestore)
|
|
])
|
|
|
|
return context
|
|
|
|
|
|
class AppOperationsView(TemplateView):
|
|
"""View to show app page when some app operations are running."""
|
|
app_id = None # Set when app is instantiated.
|
|
template_name = "app-operations.html"
|
|
|
|
@property
|
|
def app(self):
|
|
"""Return the app for which this view is configured."""
|
|
if not self.app_id:
|
|
raise ImproperlyConfigured('Missing attribute: app_id')
|
|
|
|
return app_module.App.get(self.app_id)
|
|
|
|
def get_context_data(self, *args, **kwargs):
|
|
"""Add additional context data for template."""
|
|
context = super().get_context_data(*args, **kwargs)
|
|
context['app_id'] = self.app.app_id
|
|
context['app_info'] = self.app.info
|
|
context['operations'] = operation.manager.filter(self.app.app_id)
|
|
context['refresh_page_sec'] = 0
|
|
if context['operations']:
|
|
context['refresh_page_sec'] = 3
|
|
|
|
return context
|
|
|
|
|
|
class SetupView(TemplateView):
|
|
"""View to prompt and setup applications."""
|
|
template_name = 'setup.html'
|
|
|
|
def get_context_data(self, **kwargs):
|
|
"""Return the context data rendering the template."""
|
|
context = super().get_context_data(**kwargs)
|
|
app_id = self.kwargs['app_id']
|
|
app = app_module.App.get(app_id)
|
|
|
|
context['app_id'] = app.app_id
|
|
context['app_info'] = app.info
|
|
|
|
# Report any installed conflicting packages that will be removed.
|
|
package_conflicts, package_conflicts_action = \
|
|
self._get_app_package_conflicts(app)
|
|
context['package_conflicts'] = package_conflicts
|
|
context['package_conflicts_action'] = package_conflicts_action
|
|
|
|
# Reuse the value of setup_state throughout the view for consistency.
|
|
setup_state = app.get_setup_state()
|
|
context['setup_state'] = setup_state
|
|
context['operations'] = operation.manager.filter(app.app_id)
|
|
context['show_uninstall'] = (
|
|
not app.info.is_essential
|
|
and setup_state != app_module.App.SetupState.NEEDS_SETUP)
|
|
|
|
# Perform expensive operation only if needed.
|
|
if not context['operations']:
|
|
context[
|
|
'has_unavailable_packages'] = self._has_unavailable_packages(
|
|
app)
|
|
|
|
context['refresh_page_sec'] = None
|
|
if context['setup_state'] == app_module.App.SetupState.UP_TO_DATE:
|
|
context['refresh_page_sec'] = 0
|
|
elif context['operations']:
|
|
context['refresh_page_sec'] = 3
|
|
|
|
return context
|
|
|
|
def dispatch(self, request, *args, **kwargs):
|
|
if request.method == 'POST':
|
|
if 'install' in request.POST:
|
|
# Handle installing/upgrading applications.
|
|
# Start the application setup, and refresh the page every few
|
|
# seconds to keep displaying the status.
|
|
setup.run_setup_on_app(self.kwargs['app_id'])
|
|
|
|
# Give a moment for the setup process to start and show
|
|
# meaningful status.
|
|
time.sleep(1)
|
|
response = self.render_to_response(self.get_context_data())
|
|
# Post/Response/Get pattern for reloads
|
|
response.status_code = 303
|
|
return response
|
|
|
|
if 'refresh-packages' in request.POST:
|
|
# Refresh apt package lists
|
|
package.refresh_package_lists()
|
|
return self.render_to_response(self.get_context_data())
|
|
|
|
return super().dispatch(request, *args, **kwargs)
|
|
|
|
@staticmethod
|
|
def _get_app_package_conflicts(app_):
|
|
"""Return packages that may conflict with packages of an app."""
|
|
components = app_.get_components_of_type(Packages)
|
|
conflicts = []
|
|
conflicts_action = None
|
|
for component in components:
|
|
component_conflicts = component.find_conflicts()
|
|
if component_conflicts:
|
|
conflicts += component_conflicts
|
|
if conflicts_action in (None, Packages.ConflictsAction.IGNORE):
|
|
conflicts_action = component.conflicts_action
|
|
|
|
return conflicts, conflicts_action
|
|
|
|
@staticmethod
|
|
def _has_unavailable_packages(app_):
|
|
"""Return whether the app has unavailable packages."""
|
|
components = app_.get_components_of_type(Packages)
|
|
return any(component for component in components
|
|
if component.has_unavailable_packages())
|
|
|
|
|
|
class UninstallView(FormView):
|
|
"""View to uninstall apps."""
|
|
|
|
form_class = forms.UninstallForm
|
|
template_name = 'uninstall.html'
|
|
|
|
def dispatch(self, request, *args, **kwargs):
|
|
"""Don't allow the view to be used on essential apps."""
|
|
app_id = self.kwargs['app_id']
|
|
app = app_module.App.get(app_id)
|
|
if app.info.is_essential:
|
|
raise Http404
|
|
|
|
return super().dispatch(request, *args, **kwargs)
|
|
|
|
def get_context_data(self, *args, **kwargs):
|
|
"""Add app information to the context data."""
|
|
context = super().get_context_data(*args, **kwargs)
|
|
app_id = self.kwargs['app_id']
|
|
app = app_module.App.get(app_id)
|
|
context['app_info'] = app.info
|
|
return context
|
|
|
|
def get_success_url(self):
|
|
"""Return the URL to redirect to after uninstall."""
|
|
return reverse(self.kwargs['app_id'] + ':index')
|
|
|
|
def form_valid(self, form):
|
|
"""Uninstall the app."""
|
|
app_id = self.kwargs['app_id']
|
|
|
|
# Backup the app
|
|
if form.cleaned_data['should_backup']:
|
|
repository_id = form.cleaned_data['repository']
|
|
|
|
import plinth.modules.backups.repository as repository_module
|
|
repository = repository_module.get_instance(repository_id)
|
|
if repository.flags.get('mountable'):
|
|
repository.mount()
|
|
|
|
name = datetime.datetime.now().strftime(
|
|
'%Y-%m-%d:%H:%M:%S') + ' ' + str(
|
|
_('before uninstall of {app_id}')).format(app_id=app_id)
|
|
repository.create_archive(name, [app_id])
|
|
|
|
# Uninstall
|
|
setup.run_uninstall_on_app(app_id)
|
|
|
|
return super().form_valid(form)
|
|
|
|
|
|
def notification_dismiss(request, id):
|
|
"""Dismiss a notification."""
|
|
from .notification import Notification
|
|
notes = Notification.list(key=id, user=request.user)
|
|
if not notes:
|
|
raise Http404
|
|
|
|
notes[0].dismiss()
|
|
|
|
return HttpResponseRedirect(_get_redirect_url_from_param(request))
|