/usr/lib/python2.7/dist-packages/ubuntu-kylin-sso-client/ubuntu_kylin_sso/utils/runner/glib.py is in python-ubuntu-kylin-sso-client 0.1.2.5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | # -*- coding: utf-8 -*-
#
# Copyright 2012 Canonical Ltd.
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3, as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, 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/>.
#
# In addition, as a special exception, the copyright holders give
# permission to link the code of portions of this program with the
# OpenSSL library under certain conditions as described in each
# individual source file, and distribute linked combinations
# including the two.
# You must obey the GNU General Public License in all respects
# for all of the code used other than OpenSSL. If you modify
# file(s) with this exception, you may extend this exception to your
# version of the file(s), but you are not obligated to do so. If you
# do not wish to do so, delete this exception statement from your
# version. If you delete this exception statement from all source
# files in the program, then also delete it here.
"""Utility to spawn another program from a GLib mainloop."""
import os
# pylint: disable=E0611,F0401
from gi.repository import GLib
# pylint: enable=E0611,F0401
from ubuntu_kylin_sso.logger import setup_logging
from ubuntu_kylin_sso.utils import compat
logger = setup_logging("ubuntu_kylin_sso.utils.runner.glib")
NO_SUCH_FILE_OR_DIR = '[Errno 2]'
def spawn_program(args, reply_handler, error_handler):
"""Spawn the program specified by 'args' using the GLib mainloop.
When the program finishes, 'reply_handler' will be called with a single
argument that will be the porgram status code.
If there is an error, error_handler will be called with an instance of
SpawnError.
"""
def child_watch(pid, status):
"""Handle child termination."""
# pylint: disable=E1103
GLib.spawn_close_pid(pid)
# pylint: enable=E1103
if os.WIFEXITED(status):
status = os.WEXITSTATUS(status)
reply_handler(status)
else:
msg = 'Child terminated abnormally, '\
'status from waitpid is %r' % status
error_handler(msg=msg, failed_to_start=False)
def handle_error(gerror):
"""Handle error when spawning the process."""
failed_to_start = NO_SUCH_FILE_OR_DIR in gerror.message
msg = 'GError is: code %r, message %r' % (gerror.code, gerror.message)
error_handler(msg=msg, failed_to_start=failed_to_start)
flags = GLib.SpawnFlags.DO_NOT_REAP_CHILD | \
GLib.SpawnFlags.SEARCH_PATH | \
GLib.SpawnFlags.STDOUT_TO_DEV_NULL | \
GLib.SpawnFlags.STDERR_TO_DEV_NULL
pid = None
bytes_args = []
for arg in args:
if isinstance(arg, compat.text_type):
arg = arg.encode('utf-8')
if not isinstance(arg, compat.basestring):
arg = compat.binary_type(arg)
bytes_args.append(arg)
try:
pid, _, _, _ = GLib.spawn_async(argv=bytes_args, flags=flags)
except GLib.GError as e:
handle_error(e)
else:
logger.debug('Spawning the program %r with the glib mainloop '
'(returned pid is %r).', args, pid)
GLib.child_watch_add(pid, child_watch)
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