144 lines
4.8 KiB
Python
Executable File
144 lines
4.8 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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#
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# Copyright 2015 clowwindy
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from __future__ import absolute_import, division, print_function, \
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with_statement
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import sys
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import os
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import logging
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import signal
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '../'))
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from shadowsocks import shell, daemon, eventloop, tcprelay, udprelay, \
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asyncdns, manager
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def main():
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shell.check_python()
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config = shell.get_config(False)
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daemon.daemon_exec(config)
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if config['port_password']:
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if config['password']:
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logging.warn('warning: port_password should not be used with '
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'server_port and password. server_port and password '
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'will be ignored')
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else:
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config['port_password'] = {}
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server_port = config['server_port']
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if type(server_port) == list:
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for a_server_port in server_port:
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config['port_password'][a_server_port] = config['password']
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else:
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config['port_password'][str(server_port)] = config['password']
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if config.get('manager_address', 0):
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logging.info('entering manager mode')
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manager.run(config)
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return
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tcp_servers = []
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udp_servers = []
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if 'dns_server' in config: # allow override settings in resolv.conf
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dns_resolver = asyncdns.DNSResolver(config['dns_server'],
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config['prefer_ipv6'])
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else:
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dns_resolver = asyncdns.DNSResolver(prefer_ipv6=config['prefer_ipv6'])
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port_password = config['port_password']
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del config['port_password']
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for port, password in port_password.items():
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a_config = config.copy()
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a_config['server_port'] = int(port)
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a_config['password'] = password
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logging.info("starting server at %s:%d" %
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(a_config['server'], int(port)))
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tcp_servers.append(tcprelay.TCPRelay(a_config, dns_resolver, False))
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udp_servers.append(udprelay.UDPRelay(a_config, dns_resolver, False))
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def run_server():
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def child_handler(signum, _):
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logging.warn('received SIGQUIT, doing graceful shutting down..')
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list(map(lambda s: s.close(next_tick=True),
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tcp_servers + udp_servers))
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signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM),
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child_handler)
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def int_handler(signum, _):
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sys.exit(1)
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signal.signal(signal.SIGINT, int_handler)
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try:
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loop = eventloop.EventLoop()
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dns_resolver.add_to_loop(loop)
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list(map(lambda s: s.add_to_loop(loop), tcp_servers + udp_servers))
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daemon.set_user(config.get('user', None))
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loop.run()
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except Exception as e:
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shell.print_exception(e)
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sys.exit(1)
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if int(config['workers']) > 1:
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if os.name == 'posix':
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children = []
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is_child = False
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for i in range(0, int(config['workers'])):
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r = os.fork()
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if r == 0:
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logging.info('worker started')
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is_child = True
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run_server()
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break
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else:
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children.append(r)
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if not is_child:
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def handler(signum, _):
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for pid in children:
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try:
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os.kill(pid, signum)
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os.waitpid(pid, 0)
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except OSError: # child may already exited
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pass
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sys.exit()
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signal.signal(signal.SIGTERM, handler)
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signal.signal(signal.SIGQUIT, handler)
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signal.signal(signal.SIGINT, handler)
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# master
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for a_tcp_server in tcp_servers:
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a_tcp_server.close()
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for a_udp_server in udp_servers:
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a_udp_server.close()
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dns_resolver.close()
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for child in children:
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os.waitpid(child, 0)
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else:
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logging.warn('worker is only available on Unix/Linux')
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run_server()
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else:
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run_server()
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if __name__ == '__main__':
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main()
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