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-rw-r--r--src/leap/bitmask/vpn/helpers/linux/polkit_agent.py82
1 files changed, 82 insertions, 0 deletions
diff --git a/src/leap/bitmask/vpn/helpers/linux/polkit_agent.py b/src/leap/bitmask/vpn/helpers/linux/polkit_agent.py
new file mode 100644
index 0000000..10bf7db
--- /dev/null
+++ b/src/leap/bitmask/vpn/helpers/linux/polkit_agent.py
@@ -0,0 +1,82 @@
+# -*- coding: utf-8 -*-
+# polkit_agent.py
+# Copyright (C) 2013 LEAP
+#
+# 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 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+"""
+Daemonizes polkit authentication agent.
+"""
+
+import os
+import subprocess
+
+import daemon
+
+
+POLKIT_PATHS = (
+ '/usr/lib/lxpolkit/lxpolkit',
+ '/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1',
+ '/usr/lib/mate-polkit/polkit-mate-authentication-agent-1',
+ '/usr/lib/kde4/libexec/polkit-kde-authentication-agent-1',
+)
+
+
+# TODO write tests for this piece.
+def _get_polkit_agent():
+ """
+ Return a valid polkit agent to use.
+
+ :rtype: str or None
+ """
+ # TODO: in caso of having more than one polkit agent we may want to
+ # stablish priorities. E.g.: lxpolkit over gnome-polkit for minimalistic
+ # desktops.
+ for polkit in POLKIT_PATHS:
+ if os.path.isfile(polkit):
+ return polkit
+
+ return None
+
+
+def _launch_agent():
+ """
+ Launch a polkit authentication agent on a subprocess.
+ """
+ polkit_agent = _get_polkit_agent()
+
+ if polkit_agent is None:
+ print("No usable polkit was found.")
+ return
+
+ print('Launching polkit auth agent')
+ try:
+ # XXX fix KDE launch. See: #3755
+ subprocess.call(polkit_agent)
+ except Exception as e:
+ print('Error launching polkit authentication agent %r' % (e, ))
+
+
+def launch():
+ """
+ Launch a polkit authentication agent as a daemon.
+ """
+ with daemon.DaemonContext():
+ _launch_agent()
+
+
+if __name__ == "__main__":
+ # TODO pass a --nodaemon flag so that we can launch this in the foreground
+ # and debug this module, getting errors to stderr.
+ launch()