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authorTomás Touceda <chiiph@leap.se>2014-07-16 16:42:03 -0300
committerTomás Touceda <chiiph@leap.se>2014-07-16 16:42:03 -0300
commit34457adc72a4a4c0b4bff4791f4329bca66162c1 (patch)
tree279542ab3ce460d1f0bcd7943352c3e792c9f2c6 /src/leap/bitmask/backend_app.py
parent4f946ea2189e78da0488a28b3bb8a8aed997a1c5 (diff)
parent3d6629348aedf2a6863d242d96d64b3492e86f9a (diff)
Merge remote-tracking branch 'refs/remotes/ivan/feature/new-frontend-backend' into develop
Diffstat (limited to 'src/leap/bitmask/backend_app.py')
-rw-r--r--src/leap/bitmask/backend_app.py63
1 files changed, 63 insertions, 0 deletions
diff --git a/src/leap/bitmask/backend_app.py b/src/leap/bitmask/backend_app.py
index e69de29b..5c0e4803 100644
--- a/src/leap/bitmask/backend_app.py
+++ b/src/leap/bitmask/backend_app.py
@@ -0,0 +1,63 @@
+# -*- coding: utf-8 -*-
+# backend_app.py
+# Copyright (C) 2013, 2014 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/>.
+"""
+Start point for the Backend.
+"""
+import logging
+import multiprocessing
+import signal
+
+from leap.bitmask.backend.leapbackend import LeapBackend
+from leap.bitmask.util import dict_to_flags
+
+logger = logging.getLogger(__name__)
+
+
+def signal_handler(signum, frame):
+ """
+ Signal handler that quits the running app cleanly.
+
+ :param signum: number of the signal received (e.g. SIGINT -> 2)
+ :type signum: int
+ :param frame: current stack frame
+ :type frame: frame or None
+ """
+ # Note: we don't stop the backend in here since the frontend signal handler
+ # will take care of that.
+ # In the future we may need to do the stop in here when the frontend and
+ # the backend are run separately (without multiprocessing)
+ pname = multiprocessing.current_process().name
+ logger.debug("{0}: SIGNAL #{1} catched.".format(pname, signum))
+
+
+def run_backend(bypass_checks, flags_dict):
+ """
+ Run the backend for the application.
+
+ :param bypass_checks: whether we should bypass the checks or not
+ :type bypass_checks: bool
+ :param flags_dict: a dict containing the flag values set on app start.
+ :type flags_dict: dict
+ """
+ # ignore SIGINT since app.py takes care of signaling SIGTERM to us.
+ signal.signal(signal.SIGINT, signal.SIG_IGN)
+ signal.signal(signal.SIGTERM, signal_handler)
+
+ dict_to_flags(flags_dict)
+
+ backend = LeapBackend(bypass_checks=bypass_checks)
+ backend.run()