/usr/share/backintime/plugins/usercallbackplugin.py is in backintime-common 1.1.12-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (C) 2008-2016 Oprea Dan, Bart de Koning, Richard Bailey, Germar Reitze
#
# 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.
import os
import pluginmanager
import logger
import gettext
from subprocess import Popen, PIPE
from exceptions import StopException
_=gettext.gettext
class UserCallbackPlugin( pluginmanager.Plugin ):
def __init__( self ):
return
def init( self, snapshots ):
self.config = snapshots.config
self.callback = self.config.get_take_snapshot_user_callback()
if not os.path.exists( self.callback ):
return False
return True
def notify_callback(self, *args):
cmd = [self.callback, self.config.get_current_profile(), self.config.get_profile_name()]
cmd.extend([str(x) for x in args])
logger.debug('Call user-callback: %s' %' '.join(cmd), self)
if self.config.user_callback_no_logging():
stdout, stderr = None, None
else:
stdout, stderr = PIPE, PIPE
try:
callback = Popen(cmd,
stdout = stdout,
stderr = stderr,
universal_newlines = True)
output = callback.communicate()
if output[0]:
logger.info('user-callback returned \'%s\'' %output[0].strip('\n'), self)
if output[1]:
logger.error('user-callback returned \'%s\'' %output[1].strip('\n'), self)
if callback.returncode != 0:
logger.warning('user-callback returncode: %s' %callback.returncode, self)
raise StopException()
except OSError as e:
logger.error("Exception when trying to run user callback: %s" % e.strerror, self)
def on_process_begins( self ):
self.notify_callback( '1' )
def on_process_ends( self ):
self.notify_callback( '2' )
def on_error(self, code, message):
if not message:
self.notify_callback('4', code)
else:
self.notify_callback('4', code, message)
def on_new_snapshot( self, snapshot_id, snapshot_path ):
self.notify_callback('3', snapshot_id, snapshot_path)
def on_app_start(self):
self.notify_callback('5')
def on_app_exit(self):
self.notify_callback('6')
def do_mount(self):
self.notify_callback('7')
def do_unmount(self):
self.notify_callback('8')
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