1
0
mirror of https://github.com/GNS3/gns3-server synced 2024-12-25 08:18:30 +00:00
gns3-server/gns3server/main.py
ziajka ac508435c3 History support for console and telnet application, Fixes: #1083
Arrows UP/DOWN for telnet, Ref. #1083

Typo, Ref. #1083

Support async commands, Ref. #1083

Small refactor, Ref. #1083

Asyncio telnet server - connections support, Ref. #10831

Prompt-toolkit in dependencies, ref. #1083

Few comments, ref. #1083

Direct imports, ref. #1083

Windows size changed support in telnet server, ref. #1139

Fake termios

Fake termios - different approach

InputStream - copied source from prompt_toolkit
2017-07-25 16:18:07 +02:00

88 lines
2.4 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 GNS3 Technologies Inc.
#
# 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/>.
"""
Entry point of the server. It's support daemonize the process
"""
# WARNING
# Due to buggy user machines we choose to put this as the first loading
# otherwise the egg cache is initialized in his standard location and
# if is not writetable the application crash. It's the user fault
# because one day the user as used sudo to run an egg and break his
# filesystem permissions, but it's a common mistake.
import gns3server.utils.get_resource
import os
import sys
import types
# To avoid strange bug later we switch the event loop before any other operation
if sys.platform.startswith("win"):
import asyncio
# use the Proactor event loop on Windows
loop = asyncio.ProactorEventLoop()
asyncio.set_event_loop(loop)
if sys.platform.startswith("win"):
sys.modules['termios'] = types.ModuleType('termios')
def daemonize():
"""
Do the UNIX double-fork magic for properly detaching process
"""
try:
pid = os.fork()
if pid > 0:
# Exit first parent
sys.exit(0)
except OSError as e:
print("First fork failed: %d (%s)\n" % (e.errno, e.strerror), file=sys.stderr)
sys.exit(1)
# Decouple from parent environment
os.setsid()
os.umask(0o007)
# Do second fork
try:
pid = os.fork()
if pid > 0:
# Exit from second parent
sys.exit(0)
except OSError as e:
print("Second fork failed: %d (%s)\n" % (e.errno, e.strerror), file=sys.stderr)
sys.exit(1)
def main():
"""
Entry point for GNS3 server
"""
if not sys.platform.startswith("win"):
if "--daemon" in sys.argv:
daemonize()
from gns3server.run import run
run()
if __name__ == '__main__':
main()