Rewrite with Tornado

This commit is contained in:
ayanamist 2013-02-28 11:01:32 +08:00
parent 956169fdea
commit add7a122ac

188
server.py
View file

@ -22,8 +22,6 @@
import sys
import socket
import select
import SocketServer
import struct
import string
import hashlib
@ -32,122 +30,124 @@ import json
import logging
import getopt
from tornado import ioloop
from tornado import iostream
from tornado import netutil
def get_table(key):
class Crypto(object):
def __init__(self, password):
m = hashlib.md5()
m.update(key)
m.update(password)
s = m.digest()
(a, b) = struct.unpack('<QQ', s)
table = [c for c in string.maketrans('', '')]
a, b = struct.unpack('<QQ', s)
trans = string.maketrans('', '')
table = list(trans)
for i in xrange(1, 1024):
table.sort(lambda x, y: int(a % (ord(x) + i) - a % (ord(y) + i)))
return table
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
class Socks5Server(SocketServer.StreamRequestHandler):
def handle_tcp(self, sock, remote):
try:
fdset = [sock, remote]
while True:
r, w, e = select.select(fdset, [], [])
if sock in r:
data = sock.recv(4096)
if len(data) <= 0:
break
result = send_all(remote, self.decrypt(data))
if result < len(data):
raise Exception('failed to send all data')
if remote in r:
data = remote.recv(4096)
if len(data) <= 0:
break
result = send_all(sock, self.encrypt(data))
if result < len(data):
raise Exception('failed to send all data')
finally:
sock.close()
remote.close()
self._encrypt_table = ''.join(table)
self._decrypt_table = string.maketrans(self._encrypt_table, trans)
def encrypt(self, data):
return data.translate(encrypt_table)
return data.translate(self._encrypt_table)
def decrypt(self, data):
return data.translate(decrypt_table)
return data.translate(self._decrypt_table)
def handle(self):
try:
sock = self.connection
addrtype = ord(self.decrypt(sock.recv(1)))
class Socks5Server(netutil.TCPServer):
def handle_stream(self, stream, address):
soc = stream.socket
soc.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, True)
ConnHandler(soc).wait_for_data()
class PairedStream(iostream.IOStream):
def on_close(self):
remote = getattr(self, "remote")
if isinstance(remote, PairedStream) and not remote.closed():
remote.close()
class ConnHandler(PairedStream):
def wait_for_data(self):
self.read_bytes(1, self.on_addrtype)
def on_addrtype(self, addrtype):
addrtype = ord(crypto.decrypt(addrtype))
if addrtype == 1:
addr = socket.inet_ntoa(self.decrypt(self.rfile.read(4)))
self.read_bytes(4, self.on_addr1)
elif addrtype == 3:
addr = self.decrypt(
self.rfile.read(ord(self.decrypt(sock.recv(1)))))
self.read_bytes(1, self.on_addr3_length)
else:
# not support
logging.warn('addr_type not support')
return
port = struct.unpack('>H', self.decrypt(self.rfile.read(2)))
try:
logging.info('connecting %s:%d' % (addr, port[0]))
remote = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
remote.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
remote.connect((addr, port[0]))
except socket.error, e:
# Connection refused
logging.warn(e)
return
self.handle_tcp(sock, remote)
except socket.error, e:
logging.warn(e)
self.close()
def on_addr1(self, addr):
self.remote_addr = socket.inet_ntoa(crypto.decrypt(addr))
self.read_bytes(2, self.on_port)
def on_addr3_length(self, length):
length = ord(crypto.decrypt(length))
self.read_bytes(length, self.on_addr3)
def on_addr3(self, addr):
self.remote_addr = crypto.decrypt(addr)
self.read_bytes(2, self.on_port)
def on_port(self, port):
self.remote_port = struct.unpack('>H', crypto.decrypt(port))[0]
logging.debug("Connecting to %s:%d" % (self.remote_addr, self.remote_port))
remote_soc = socket.socket()
remote_soc.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, True)
self.remote = PairedStream(remote_soc)
self.set_close_callback(self.remote.on_close)
self.remote.set_close_callback(self.on_close)
self.remote.connect((self.remote_addr, self.remote_port), self.on_remote_connected)
def on_remote_connected(self):
self.read_until_close(callback=self.on_client_read, streaming_callback=self.on_client_read)
self.remote.read_until_close(callback=self.on_remote_read, streaming_callback=self.on_remote_read)
def on_client_read(self, data):
self.remote.write(crypto.encrypt(data))
def on_remote_read(self, data):
self.write(crypto.decrypt(data))
if __name__ == '__main__':
os.chdir(os.path.dirname(__file__) or '.')
print 'shadowsocks v0.9.3'
with open('config.json', 'rb') as f:
if __name__ == "__main__":
logging.basicConfig(level=logging.DEBUG, format='%(asctime)s %(levelname)-8s %(message)s',
datefmt='%Y-%m-%d %H:%M:%S', filemode='a+')
with open(os.path.join(os.path.dirname(__file__), "config.json"), "rb") as f:
config = json.load(f)
SERVER = config['server']
PORT = config['server_port']
KEY = config['password']
server_port = config['server_port']
server_password = config['password']
optlist, args = getopt.getopt(sys.argv[1:], 'p:k:')
for key, value in optlist:
if key == '-p':
PORT = int(value)
server_port = int(value)
elif key == '-k':
KEY = value
server_password = value
logging.basicConfig(level=logging.DEBUG, format='%(asctime)s %(levelname)-8s %(message)s',
datefmt='%Y-%m-%d %H:%M:%S', filemode='a+')
encrypt_table = ''.join(get_table(KEY))
decrypt_table = string.maketrans(encrypt_table, string.maketrans('', ''))
if '-6' in sys.argv[1:]:
ThreadingTCPServer.address_family = socket.AF_INET6
try:
server = ThreadingTCPServer(('', PORT), Socks5Server)
logging.info("starting server at port %d ..." % PORT)
server.serve_forever()
except socket.error, e:
logging.error(e)
address_family = socket.AF_INET6
else:
address_family = socket.AF_INET
crypto = Crypto(server_password)
logging.info("starting server at port %d ..." % server_port)
server = Socks5Server()
server.bind(port=server_port, family=address_family)
server.start()
try:
ioloop.IOLoop.instance().start()
except KeyboardInterrupt:
pass
except Exception:
logging.exception("Uncaught Exception")