You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
304 lines
10 KiB
304 lines
10 KiB
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
# Copyright (c) 2014 clowwindy
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documentation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in
|
|
# all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
# SOFTWARE.
|
|
|
|
from __future__ import with_statement
|
|
import sys
|
|
if sys.version_info < (2, 6):
|
|
import simplejson as json
|
|
else:
|
|
import json
|
|
|
|
|
|
import socket
|
|
import select
|
|
import threading
|
|
import SocketServer
|
|
import struct
|
|
import logging
|
|
import getopt
|
|
import encrypt
|
|
import os
|
|
import utils
|
|
import tcprelay
|
|
import udprelay
|
|
|
|
|
|
def send_all(sock, data):
|
|
bytes_sent = 0
|
|
while True:
|
|
r = sock.send(data[bytes_sent:])
|
|
if r < 0:
|
|
return r
|
|
bytes_sent += r
|
|
if bytes_sent == len(data):
|
|
return bytes_sent
|
|
|
|
|
|
class ThreadingTCPServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer):
|
|
allow_reuse_address = True
|
|
|
|
def server_activate(self):
|
|
if config_fast_open:
|
|
try:
|
|
self.socket.setsockopt(socket.SOL_TCP, 23, 5)
|
|
except socket.error:
|
|
logging.error('warning: fast open is not available')
|
|
self.socket.listen(self.request_queue_size)
|
|
|
|
def get_request(self):
|
|
connection = self.socket.accept()
|
|
connection[0].settimeout(config_timeout)
|
|
return connection
|
|
|
|
|
|
class Socks5Server(SocketServer.StreamRequestHandler):
|
|
def handle_tcp(self, sock, remote):
|
|
try:
|
|
fdset = [sock, remote]
|
|
while True:
|
|
should_break = False
|
|
r, w, e = select.select(fdset, [], [], config_timeout)
|
|
if not r:
|
|
logging.warn('read time out')
|
|
break
|
|
if sock in r:
|
|
data = self.decrypt(sock.recv(4096))
|
|
if len(data) <= 0:
|
|
should_break = True
|
|
else:
|
|
result = send_all(remote, data)
|
|
if result < len(data):
|
|
raise Exception('failed to send all data')
|
|
if remote in r:
|
|
data = self.encrypt(remote.recv(4096))
|
|
if len(data) <= 0:
|
|
should_break = True
|
|
else:
|
|
result = send_all(sock, data)
|
|
if result < len(data):
|
|
raise Exception('failed to send all data')
|
|
if should_break:
|
|
# make sure all data are read before we close the sockets
|
|
# TODO: we haven't read ALL the data, actually
|
|
# http://cs.ecs.baylor.edu/~donahoo/practical/CSockets/TCPRST.pdf
|
|
break
|
|
|
|
finally:
|
|
sock.close()
|
|
remote.close()
|
|
|
|
def encrypt(self, data):
|
|
return self.encryptor.encrypt(data)
|
|
|
|
def decrypt(self, data):
|
|
return self.encryptor.decrypt(data)
|
|
|
|
def handle(self):
|
|
try:
|
|
self.encryptor = encrypt.Encryptor(self.server.key,
|
|
self.server.method)
|
|
sock = self.connection
|
|
sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
|
|
iv_len = self.encryptor.iv_len()
|
|
data = sock.recv(iv_len)
|
|
if iv_len > 0 and not data:
|
|
sock.close()
|
|
return
|
|
if iv_len:
|
|
self.decrypt(data)
|
|
data = sock.recv(1)
|
|
if not data:
|
|
sock.close()
|
|
return
|
|
addrtype = ord(self.decrypt(data))
|
|
if addrtype == 1:
|
|
addr = socket.inet_ntoa(self.decrypt(self.rfile.read(4)))
|
|
elif addrtype == 3:
|
|
addr = self.decrypt(
|
|
self.rfile.read(ord(self.decrypt(sock.recv(1)))))
|
|
elif addrtype == 4:
|
|
addr = socket.inet_ntop(socket.AF_INET6,
|
|
self.decrypt(self.rfile.read(16)))
|
|
else:
|
|
# not supported
|
|
logging.warn('addr_type not supported, maybe wrong password')
|
|
return
|
|
port = struct.unpack('>H', self.decrypt(self.rfile.read(2)))
|
|
try:
|
|
logging.info('connecting %s:%d' % (addr, port[0]))
|
|
remote = socket.create_connection((addr, port[0]),
|
|
timeout=config_timeout)
|
|
remote.settimeout(config_timeout)
|
|
remote.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
|
|
except socket.error, e:
|
|
# Connection refused
|
|
logging.warn(e)
|
|
return
|
|
self.handle_tcp(sock, remote)
|
|
except socket.error, e:
|
|
logging.warn(e)
|
|
|
|
|
|
def main():
|
|
global config_server, config_server_port, config_method, config_fast_open, \
|
|
config_timeout
|
|
|
|
logging.basicConfig(level=logging.DEBUG,
|
|
format='%(asctime)s %(levelname)-8s %(message)s',
|
|
datefmt='%Y-%m-%d %H:%M:%S', filemode='a+')
|
|
|
|
|
|
version = ''
|
|
try:
|
|
import pkg_resources
|
|
version = pkg_resources.get_distribution('shadowsocks').version
|
|
except:
|
|
pass
|
|
print 'shadowsocks %s' % version
|
|
|
|
config_path = utils.find_config()
|
|
try:
|
|
optlist, args = getopt.getopt(sys.argv[1:], 's:p:k:m:c:t:',
|
|
['fast-open', 'workers:'])
|
|
for key, value in optlist:
|
|
if key == '-c':
|
|
config_path = value
|
|
|
|
if config_path:
|
|
logging.info('loading config from %s' % config_path)
|
|
with open(config_path, 'rb') as f:
|
|
try:
|
|
config = json.load(f)
|
|
except ValueError as e:
|
|
logging.error('found an error in config.json: %s',
|
|
e.message)
|
|
sys.exit(1)
|
|
else:
|
|
config = {}
|
|
|
|
optlist, args = getopt.getopt(sys.argv[1:], 's:p:k:m:c:t:',
|
|
['fast-open', 'workers='])
|
|
for key, value in optlist:
|
|
if key == '-p':
|
|
config['server_port'] = int(value)
|
|
elif key == '-k':
|
|
config['password'] = value
|
|
elif key == '-s':
|
|
config['server'] = value
|
|
elif key == '-m':
|
|
config['method'] = value
|
|
elif key == '-t':
|
|
config['timeout'] = value
|
|
elif key == '--fast-open':
|
|
config['fast_open'] = True
|
|
elif key == '--workers':
|
|
config['workers'] = value
|
|
except getopt.GetoptError:
|
|
utils.print_server_help()
|
|
sys.exit(2)
|
|
|
|
config['password'] = config.get('password', None)
|
|
config['method'] = config.get('method', None)
|
|
config['port_password'] = config.get('port_password', None)
|
|
config['timeout'] = int(config.get('timeout', 300))
|
|
config['fast_open'] = config.get('fast_open', False)
|
|
config['workers'] = config.get('workers', 1)
|
|
|
|
utils.check_config(config)
|
|
|
|
if config['port_password']:
|
|
if config['server_port'] or config['password']:
|
|
logging.warn('warning: port_password should not be used with '
|
|
'server_port and password. server_port and password '
|
|
'will be ignored')
|
|
else:
|
|
config['port_password'] = {}
|
|
config['port_password'][str(config['server_port'])] = config['password']
|
|
|
|
encrypt.init_table(config['password'], config['method'])
|
|
addrs = socket.getaddrinfo(config['server'], int(8387))
|
|
if not addrs:
|
|
logging.error('cant resolve listen address')
|
|
sys.exit(1)
|
|
ThreadingTCPServer.address_family = addrs[0][0]
|
|
tcp_servers = []
|
|
udp_servers = []
|
|
for port, password in config['port_password'].items():
|
|
a_config = config.copy()
|
|
a_config['server_port'] = port
|
|
a_config['password'] = password
|
|
logging.info("starting server at %s:%d" %
|
|
(a_config['server'], port))
|
|
tcp_server = tcprelay.TCPRelay(config, False)
|
|
tcp_servers.append(tcp_server)
|
|
udp_server = udprelay.UDPRelay(config, False)
|
|
udp_servers.append(udp_server)
|
|
|
|
def run_server():
|
|
for tcp_server in tcp_servers:
|
|
tcp_server.start()
|
|
for udp_server in udp_servers:
|
|
udp_server.start()
|
|
|
|
if int(config['workers']) > 1:
|
|
if os.name == 'posix':
|
|
children = []
|
|
is_child = False
|
|
for i in xrange(0, int(config['workers'])):
|
|
r = os.fork()
|
|
if r == 0:
|
|
logging.info('worker started')
|
|
is_child = True
|
|
run_server()
|
|
break
|
|
else:
|
|
children.append(r)
|
|
if not is_child:
|
|
def handler(signum, frame):
|
|
for pid in children:
|
|
os.kill(pid, signum)
|
|
os.waitpid(pid, 0)
|
|
sys.exit()
|
|
import signal
|
|
signal.signal(signal.SIGTERM, handler)
|
|
|
|
# master
|
|
for tcp_server in tcp_servers:
|
|
tcp_server.server_close()
|
|
for udp_server in udp_servers:
|
|
udp_server.close()
|
|
|
|
for child in children:
|
|
os.waitpid(child, 0)
|
|
else:
|
|
logging.warn('worker is only available on Unix/Linux')
|
|
run_server()
|
|
else:
|
|
run_server()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
try:
|
|
main()
|
|
except socket.error, e:
|
|
logging.error(e)
|
|
|