Add first draft of labels

dbus-1/services/org.qubes.Labels1.service

@@ -0,0 +1,3 @@
+[D-BUS Service]
+Name=org.qubes.Labels1
+Exec=/usr/bin/python /usr/lib/python2.7/site-packages/qubesdbus/labels.py

qubesdbus/__init__.py

@@ -23,5 +23,6 @@
 from .constants import * # pylint: disable=wildcard-import
 from .proxy import QubesDbusProxy
 from .domain_manager import DomainManager
+from .labels import Labels
 from .constants import NAME_PREFIX, PATH_PREFIX, VERSION
 from .exceptions import QubesDbusException

qubesdbus/labels.py

@@ -0,0 +1,105 @@
+# -*- encoding: utf8 -*-
+# pylint: disable=invalid-name
+#
+# The Qubes OS Project, https://www.qubes-os.org/
+#
+# Copyright (C) 2016 Bahtiar `kalkin-` Gadimov <[email protected]>
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from __future__ import absolute_import, print_function
+
+import logging
+import sys
+
+import dbus.service
+import qubes
+from gi.repository import GLib
+from systemd.journal import JournalHandler
+
+from qubesdbus.service import _DbusServiceObject
+try:
+    # Check for mypy dependencies pylint: disable=ungrouped-imports
+    from typing import Any  # pylint: disable=unused-import
+except ImportError:
+    pass
+
+log = logging.getLogger('org.qubes.Labels1')
+log.addHandler(JournalHandler(SYSLOG_IDENTIFIER='qubesdbus.labels'))
+log.setLevel(logging.INFO)
+
+
+class Labels(_DbusServiceObject):
+    def __init__(self, app):
+        super(Labels, self).__init__()
+        self.labels = dbus.Array()
+        for label in app.labels.values():
+            proxy = Label(label, self.bus, self.bus_name, self.bus_path)
+            self.labels.append(proxy)
+
+    @dbus.service.method(dbus_interface="org.freedesktop.DBus.ObjectManager")
+    def GetManagedObjects(self):
+        ''' Returns all the labels.
+        '''
+        return {"%s/labels/%s" % (self.bus_path, l.properties['name']):
+                "%s.labels.%s" % (self.bus_name, l.properties['name'])
+                for l in self.labels}
+
+class Label(dbus.service.Object):
+    def __init__(self, label, bus, bus_name, path_prefix):
+        self.bus_path = '/'.join([path_prefix, 'labels', label.name])
+        self.bus_name = bus_name
+        self.bus = bus
+        self.properties = {}  # type: Dict[str,Any]
+        self.identifier = label.name
+        for p_name in dir(label):
+            if p_name.startswith('_') or callable(getattr(label, p_name)):
+                continue
+            try:
+                value = getattr(label, p_name)
+                self.properties[p_name] = dbus.String(value)
+            except AttributeError:
+                self.properties[p_name] = ''
+        dbus.service.Object.__init__(self, self.bus_name, self.bus_path)
+
+    @dbus.service.method(dbus_interface="org.freedesktop.DBus.Properties")
+    def Get(self, _, property_name):
+        return self.properties[property_name]
+
+    @dbus.service.method(dbus_interface="org.freedesktop.DBus.Properties")
+    def GetAll(self, _):
+        # According to the dbus spec we should be able to return types not only
+        # string, but it doesn't work. We need to serialize everything to string ☹
+        return dbus.Dictionary({k: dbus.String(v)
+                                for k, v in self.properties.items()})
+
+    @dbus.service.method(dbus_interface="org.freedesktop.DBus.Properties")
+    def Set(self, _, property_name, value):
+        log.info('%s: Property changed %s = %s', self.identifier,
+                 property_name, value)
+        self.properties[property_name] = value
+
+def main(args=None):
+    ''' Main function '''  # pylint: disable=unused-argument
+    loop = GLib.MainLoop()
+    app = qubes.Qubes()
+    _ = Labels(app)
+    print("Service running...")
+    loop.run()
+    print("Service stopped")
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())

rpm_spec/qubes-dbus.spec

@@ -58,3 +58,4 @@ rm -rf $RPM_BUILD_ROOT
 %files -f INSTALLED_FILES
 %defattr(-,root,root)
 /usr/share/dbus-1/services/org.qubes.DomainManager1.service
+/usr/share/dbus-1/services/org.qubes.Labels1.service