Add update check and action stub

usr/lib/python3.6/vmmgr/appmgr.py

@@ -65,6 +65,12 @@ class AppMgr:
             self.update_app_autostart(app, False)
         self.pkgmgr.uninstall_app(app)
 
+    def update_app(self, item):
+        # Main update function. Wrapper for download and update script
+        self.stop_app(item)
+        item.data = Pkg()
+        self.pkgmgr.update_app(item.key, item.data)
+
     def get_services_deps(self):
         # Fisrt, build a dictionary of {app: [needs]}
         needs = {}

usr/lib/python3.6/vmmgr/pkgmgr.py

@@ -7,6 +7,7 @@ import shutil
 import subprocess
 
 from enum import Enum
+from packaging.version import Version
 from werkzeug.exceptions import BadRequest, NotFound, Unauthorized
 
 from . import crypto
@@ -82,6 +83,12 @@ class PkgMgr:
                 self.purge_package(dep)
                 self.unregister_package(dep)
 
+    def update_app(self, app, item):
+        # Main update function.
+        # TODO: Implement actual update
+        uninstall_app(app)
+        install_app(app, item)
+
     def download_package(self, name, item):
         # Download tar.xz package and verify its hash. Can raise InvalidSignature
         pkg_archive = '{}_{}-{}.tar.xz'.format(name, self.online_packages[name]['version'], self.online_packages[name]['release'])
@@ -164,3 +171,8 @@ class PkgMgr:
             for d in self.conf['packages'][name]['depends']:
                 deps.setdefault(d, []).append(name)
         return deps
+
+    def has_update(self, app):
+        if not self.online_packages:
+            return False
+        return Version(self.conf['packages'][app]['version']) < Version(self.online_packages[app]['version'])

usr/lib/python3.6/vmmgr/wsgiapp.py

@@ -62,6 +62,7 @@ class WSGIApp:
             Rule('/get-app-status', endpoint='get_app_status_action'),
             Rule('/clear-app-status', endpoint='clear_app_status_action'),
             Rule('/uninstall-app', endpoint='uninstall_app_action'),
+            Rule('/update-app', endpoint='update_app_action'),
             Rule('/update-password', endpoint='update_password_action'),
             Rule('/shutdown-vm', endpoint='shutdown_vm_action'),
             Rule('/reboot-vm', endpoint='reboot_vm_action'),
@@ -247,12 +248,15 @@ class WSGIApp:
                 if not installed:
                     status = lang.status_not_installed()
                     actions = '<a href="#" class="app-install">{}</a>'.format(lang.action_install())
-                elif self.appmgr.is_service_started(app):
+                else:
+                    if self.appmgr.is_service_started(app):
                         status = '<span class="info">{}</span>'.format(lang.status_started())
                         actions = '<a href="#" class="app-stop">{}</a>'.format(lang.action_stop())
                     else:
                         status = '<span class="error">{}</span>'.format(lang.status_stopped())
                         actions = '<a href="#" class="app-start">{}</a>, <a href="#" class="app-uninstall">{}</a>'.format(lang.action_start(), lang.action_uninstall())
+                    if self.appmgr.pkgmgr.has_update(app):
+                        actions = '{}, <a href="#" class="app-update">{}</a>'.format(actions, lang.action_update())
             app_data[app] = {'title': title, 'visible': visible, 'installed': installed, 'autostarted': autostarted, 'status': status, 'actions': actions}
         return self.render_template('setup-apps-table.html', request, app_data=app_data)
 
@@ -385,6 +389,10 @@ class WSGIApp:
         # Queues application uninstallation
         return self.enqueue_app_action(request, self.appmgr.uninstall_app)
 
+    def update_app_action(self, request):
+        # Queues application update
+        return self.enqueue_app_action(request, self.appmgr.update_app)
+
     def get_app_status_action(self, request):
         # Gets application and queue status
         return self.render_json({'ok': self.render_setup_apps_table(request)})

usr/lib/python3.6/vmmgr/wsgilang.py

@@ -50,6 +50,7 @@ class WSGILang:
         'action_stop': 'Zastavit',
         'action_install': 'Instalovat',
         'action_uninstall': 'Odinstalovat',
+        'action_update': 'Aktualizovat',
         'ssh_keys_installed': 'SSH klíče byly úspěšně změněny.',
         'vpn_updated': 'Nastavení VPN bylo úspěšně změněno.',
     }

usr/share/vmmgr/static/js/admin.js

@@ -15,6 +15,7 @@ $(function() {
         .on('click', '.app-stop', stop_app)
         .on('click', '.app-install', install_app)
         .on('click', '.app-uninstall', uninstall_app)
+        .on('click', '.app-update', update_app)
         .on('click', '.app-clear-status', clear_app_status);
     $('#update-password').on('submit', update_password);
     $('#reboot-vm').on('click', reboot_vm);
@@ -165,6 +166,10 @@ function uninstall_app(ev) {
     return false;
 }
 
+function update_app(ev) {
+    return _do_app('/update-app', ev);
+}
+
 function clear_app_status(ev) {
     return _do_app('/clear-app-status', ev);
 }