def visit_simple(self, simple):
"""Visit a Simple keyword."""
value = simple.value
self._write(self.decorate_keyword(simple.name))
self._print_equal(False)
if isinstance(value, basestring):
self._write("{0!r}".format(to_str(value)))
elif isinstance(value, Command):
self._write(self.decorate_name(value.name))
elif isinstance(value, CO):
self._write(self.decorate_special('CO'))
self._print_left_brace()
self._write(repr(self.decorate_name(value.name)))
self._print_right_brace()
elif isinstance(value, (list, tuple)):
self._write(obj_start(value))
for idx, item in enumerate(value):
if isinstance(item, Command):
self._write(self.decorate_name(item.name))
elif isinstance(item, basestring):
self._write("{0!r}".format(to_str(item)))
else:
self._write(repr(item))
if self._limited(idx, value, self.interrupt_value):
break
self._print_delimiter(idx, value)
self._write(obj_end(value))
else:
self._write("%s" % (value, ))
def _handle_stage_addr(self, data):
try:
if self._is_local:
cmd = common.ord(data[1])
if cmd == CMD_UDP_ASSOCIATE:
logging.debug('UDP associate')
if self._local_sock.family == socket.AF_INET6:
header = b'\x05\x00\x00\x04'
else:
header = b'\x05\x00\x00\x01'
addr, port = self._local_sock.getsockname()[:2]
addr_to_send = socket.inet_pton(self._local_sock.family,
addr)
port_to_send = struct.pack('>H', port)
self._write_to_sock(header + addr_to_send + port_to_send,
self._local_sock)
self._stage = STAGE_UDP_ASSOC
# just wait for the client to disconnect
return
elif cmd == CMD_CONNECT:
# just trim VER CMD RSV
data = data[3:]
else:
logging.error('unknown command %d', cmd)
self.destroy()
return
header_result = parse_header(data)
if header_result is None:
raise Exception('can not parse header')
addrtype, remote_addr, remote_port, header_length = header_result
logging.info('connecting %s:%d from %s:%d' %
(common.to_str(remote_addr), remote_port,
self._client_address[0], self._client_address[1]))
self._remote_address = (common.to_str(remote_addr), remote_port)
# pause reading
self._update_stream(STREAM_UP, WAIT_STATUS_WRITING)
self._stage = STAGE_DNS
if self._is_local:
# forward address to remote
self._write_to_sock((b'\x05\x00\x00\x01'
b'\x00\x00\x00\x00\x10\x10'),
self._local_sock)
data_to_send = self._encryptor.encrypt(data)
self._data_to_write_to_remote.append(data_to_send)
# notice here may go into _handle_dns_resolved directly
self._dns_resolver.resolve(self._chosen_server[0],
self._handle_dns_resolved)
else:
if len(data) > header_length:
self._data_to_write_to_remote.append(data[header_length:])
# notice here may go into _handle_dns_resolved directly
self._dns_resolver.resolve(remote_addr,
self._handle_dns_resolved)
except Exception as e:
self._log_error(e)
if self._config['verbose']:
traceback.print_exc()
# TODO use logging when debug completed
self.destroy()
def _handle_stage_addr(self, data):
try:
if self._is_local:
cmd = common.ord(data[1])
if cmd == CMD_UDP_ASSOCIATE:
logging.debug('UDP associate')
if self._local_sock.family == socket.AF_INET6:
header = b'\x05\x00\x00\x04'
else:
header = b'\x05\x00\x00\x01'
addr, port = self._local_sock.getsockname()[:2]
addr_to_send = socket.inet_pton(self._local_sock.family,
addr)
port_to_send = struct.pack('>H', port)
self._write_to_sock(header + addr_to_send + port_to_send,
self._local_sock)
self._stage = STAGE_UDP_ASSOC
# just wait for the client to disconnect
return
elif cmd == CMD_CONNECT:
# just trim VER CMD RSV
data = data[3:]
else:
logging.error('unknown command %d', cmd)
self.destroy()
return
header_result = parse_header(data)
if header_result is None:
raise Exception('can not parse header')
addrtype, remote_addr, remote_port, header_length = header_result
logging.info('connecting %s:%d from %s:%d' %
(common.to_str(remote_addr), remote_port,
self._client_address[0], self._client_address[1]))
self._remote_address = (common.to_str(remote_addr), remote_port)
# pause reading
self._update_stream(STREAM_UP, WAIT_STATUS_WRITING)
self._stage = STAGE_DNS
if self._is_local:
# forward address to remote
self._write_to_sock((b'\x05\x00\x00\x01'
b'\x00\x00\x00\x00\x10\x10'),
self._local_sock)
data_to_send = self._encryptor.encrypt(data)
self._data_to_write_to_remote.append(data_to_send)
# notice here may go into _handle_dns_resolved directly
self._dns_resolver.resolve(self._chosen_server[0],
self._handle_dns_resolved)
else:
if len(data) > header_length:
self._data_to_write_to_remote.append(data[header_length:])
# notice here may go into _handle_dns_resolved directly
self._dns_resolver.resolve(remote_addr,
self._handle_dns_resolved)
except Exception as e:
self._log_error(e)
if self._config['verbose']:
traceback.print_exc()
# TODO use logging when debug completed
self.destroy()
def _create_remote_socket(self, ip, port):
addrs = socket.getaddrinfo(ip, port, 0, socket.SOCK_STREAM,
socket.SOL_TCP)
if len(addrs) == 0:
raise Exception("getaddrinfo failed for %s:%d" % (ip, port))
af, socktype, proto, canonname, sa = addrs[0]
if self._forbidden_iplist:
if common.to_str(sa[0]) in self._forbidden_iplist:
raise Exception('IP %s is in forbidden list, reject' %
common.to_str(sa[0]))
remote_sock = socket.socket(af, socktype, proto)
self._remote_sock = remote_sock
self._fd_to_handlers[remote_sock.fileno()] = self
remote_sock.setblocking(False)
remote_sock.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)
return remote_sock
def write_pid_file(pid_file, pid):
import fcntl
import stat
try:
fd = os.open(pid_file, os.O_RDWR | os.O_CREAT,
stat.S_IRUSR | stat.S_IWUSR)
except OSError as e:
shell.print_exception(e)
return -1
flags = fcntl.fcntl(fd, fcntl.F_GETFD)
assert flags != -1
flags |= fcntl.FD_CLOEXEC
r = fcntl.fcntl(fd, fcntl.F_SETFD, flags)
assert r != -1
# There is no platform independent way to implement fcntl(fd, F_SETLK, &fl)
# via fcntl.fcntl. So use lockf instead
try:
fcntl.lockf(fd, fcntl.LOCK_EX | fcntl.LOCK_NB, 0, 0, os.SEEK_SET)
except IOError:
r = os.read(fd, 32)
if r:
logging.error('already started at pid %s' % common.to_str(r))
else:
logging.error('already started')
os.close(fd)
return -1
os.ftruncate(fd, 0)
os.write(fd, common.to_bytes(str(pid)))
return 0
def save_stage(self, stage, text):
"""Save the text representation of a Stage."""
name = "{0.name}_{0.number}".format(stage)
filename = name + '.comm'
self._comm.append(filename)
with open(osp.join(self.path, filename), 'wb') as fobj:
fobj.write(to_str(text))
def get_host_from_http_header(self, buf):
ret_buf = b''
lines = buf.split(b'\r\n')
if lines and len(lines) > 1:
for line in lines:
if match_begin(line, b"Host: "):
return common.to_str(line[6:])
def _parse_command(self, data):
# commands:
# add: {"server_port": 8000, "password": "******"}
# remove: {"server_port": 8000"}
data = common.to_str(data)
parts = data.split(':', 1)
if len(parts) < 2:
return data, None
command, config_json = parts
try:
config = shell.parse_json_in_str(config_json)
if 'method' in config:
config['method'] = common.to_str(config['method'])
return command, config
except Exception as e:
logging.error(e)
return None
def __init__(self, method):
method = common.to_str(method)
self.method = method
self._method_info = self.get_method_info(method)
if self._method_info:
self.obfs = self.get_obfs(method)
else:
raise Exception('obfs plugin [%s] not supported' % method)
def shortrepr(self):
"""
Get a short representation of the node.
Returns:
str: Short node's representation.
"""
return to_str("{0._name} <{0._id}:{0.__class__.__name__}"
">").format(self)
def load(self, data_path, session, ignore_missing=True):
'''
Load network weights.
data_path: The path to the numpy-serialized network weights
session: The current TensorFlow session
ignore_missing: If true, serialized weights for missing layers are ignored.
'''
data_dict = np.load(data_path, encoding='bytes',
allow_pickle=True).item()
print(data_dict.keys())
for op_name, param_dict in data_dict.items():
if isinstance(data_dict[op_name], np.ndarray):
if 'RMSProp' in op_name:
continue
with tf.variable_scope('', reuse=True):
var = tf.get_variable(op_name.replace(':0', ''))
try:
session.run(var.assign(data_dict[op_name]))
except Exception as e:
print(op_name)
print(e)
sys.exit(-1)
else:
op_name = common.to_str(op_name)
# if op_name > 'conv4':
# print(op_name, 'skipped')
# continue
# print(op_name, 'restored')
with tf.variable_scope(op_name, reuse=True):
for param_name, data in param_dict.items():
try:
var = tf.get_variable(common.to_str(param_name))
session.run(var.assign(data))
except ValueError as e:
print(e)
if not ignore_missing:
raise
def check_config(config, is_local):
if config.get('daemon', None) == 'stop':
# no need to specify configuration for daemon stop
return
if is_local and not config.get('password', None):
logging.error('password not specified')
print_help(is_local)
sys.exit(2)
if not is_local and not config.get('password', None) \
and not config.get('port_password', None):
logging.error('password or port_password not specified')
print_help(is_local)
sys.exit(2)
if 'local_port' in config:
config['local_port'] = int(config['local_port'])
if 'server_port' in config and type(config['server_port']) != list:
config['server_port'] = int(config['server_port'])
if config.get('local_address', '') in [b'0.0.0.0']:
logging.warn('warning: local set to listen on 0.0.0.0, it\'s not safe')
if config.get('server', '') in ['127.0.0.1', 'localhost']:
logging.warn('warning: server set to listen on %s:%s, are you sure?' %
(to_str(config['server']), config['server_port']))
if (config.get('method', '') or '').lower() == 'table':
logging.warn('warning: table is not safe; please use a safer cipher, '
'like AES-256-CFB')
if (config.get('method', '') or '').lower() == 'rc4':
logging.warn('warning: RC4 is not safe; please use a safer cipher, '
'like AES-256-CFB')
if config.get('timeout', 300) < 100:
logging.warn('warning: your timeout %d seems too short' %
int(config.get('timeout')))
if config.get('timeout', 300) > 600:
logging.warn('warning: your timeout %d seems too long' %
int(config.get('timeout')))
if config.get('password') in [b'mypassword']:
logging.error('DON\'T USE DEFAULT PASSWORD! Please change it in your '
'config.json!')
sys.exit(1)
if config.get('user', None) is not None:
if os.name != 'posix':
logging.error('user can be used only on Unix')
sys.exit(1)
encrypt.try_cipher(config['password'], config['method'])
def export(self, file_name):
"""
Export Stage to a COMM file.
Arguments:
file_name (str): Path to the COMM file.
"""
from common import to_unicode
utext = to_unicode(self.get_text(enclosed=True))
if not utext.endswith('\n'):
utext += '\n'
with open(file_name, 'w') as handle:
handle.write(to_str(utext))
handle.flush()
def __str__(self):
"""Stringifies a command: returns is code_aster syntax"""
ostream = StringIO()
from ..study2comm import ExportToCommVisitor
export = ExportToCommVisitor(ostream)
comment = self.comment # Print corresponding comment first
if comment is not None:
comment.accept(export) # pragma pylint: disable=no-member
self.accept(export)
value = ostream.getvalue()
return to_str(value[1:])
def _local_read(self):
sock = self._local_sock
try:
data = sock.recv(BUF_SIZE)
except (OSError, IOError) as e:
logging.exception(e)
return
if not data:
self.destroy()
return
logging.info("recv local read len: %s", len(data))
if data == b'\x05\x01\x00':
self.write_to_sock(b'\x05\00', self._local_sock)
return
if b'\x05\x01\x00' == data[:3]:
data = data[3:]
if self._stage == STAGE_INIT:
self.req_data += data
logging.info("POLL_IN event fd:%s", sock.fileno())
header_result = parse_header(self.req_data)
if not header_result:
logging.error("[parse_header] error res:%s data:%s",
header_result, self.req_data)
return
self._stage = STAGE_STREAM
addrtype, remote_addr, remote_port, header_length = header_result
logging.info('connecting %s:%d from %s:%d header_len:%s' %
(common.to_str(remote_addr), remote_port,
self._client_address[0], self._client_address[1],
header_length))
self.req_data = self.req_data[header_length:]
remote_sock = create_remote_socket(remote_addr, remote_port)
self._remote_sock = remote_sock
self.write_to_sock(b'\x05\x00\x00\x01\x00\x00\x00\x00\x10\x10',
self._local_sock)
logging.info("connecting %s:%s from :%s", remote_addr, remote_port,
self._client_address)
logging.info("remote_sock:%s local_sock:%s",
self._remote_sock.fileno(), self._local_sock.fileno())
self.loop.add(remote_sock, POLL_OUT | POLL_ERR, self)
elif self._stage == STAGE_STREAM:
data = self.req_data + data
self.req_data = bytes()
self.write_to_sock(data, self._remote_sock)
def daemon_stop(pid_file):
import errno
try:
with open(pid_file) as f:
buf = f.read()
pid = common.to_str(buf)
if not buf:
logging.error('not running')
except IOError as e:
shell.print_exception(e)
if e.errno == errno.ENOENT:
# always exit 0 if we are sure daemon is not running
logging.error('not running')
return
sys.exit(1)
pid = int(pid)
if pid > 0:
try:
os.kill(pid, signal.SIGTERM)
except OSError as e:
if e.errno == errno.ESRCH:
logging.error('not running')
# always exit 0 if we are sure daemon is not running
return
shell.print_exception(e)
sys.exit(1)
else:
logging.error('pid is not positive: %d', pid)
# sleep for maximum 10s
for i in range(0, 200):
try:
# query for the pid
os.kill(pid, 0)
except OSError as e:
if e.errno == errno.ESRCH:
break
time.sleep(0.05)
else:
logging.error('timed out when stopping pid %d', pid)
sys.exit(1)
print('stopped')
os.unlink(pid_file)
def main():
shell.check_python()
# fix py2exe
if hasattr(sys, "frozen") and sys.frozen in ("windows_exe", "console_exe"):
p = os.path.dirname(os.path.abspath(sys.executable))
os.chdir(p)
config = shell.get_config(True)
#added by tib for local random choose a server and the port and the port_password
if config['port_password']:
if config['password']:
logging.warn('warning: port_password should not be used with server_port and password. server_port and password will be ignored')
# config['server_port'] = int(random.choice(config['port_password'].items())[0])
if config.has_key('server_port'):
if type(config['server_port']) == list and config['server_port']:
config['server_port'] = random.choice(config.get('server_port', 8388))
elif config['server_port']:
config['server_port'] == int(common.to_str(config.get('server_port',8388)))
else:
config['server_port'] = int(random.choice(config['port_password'].items())[0])
else:
config['server_port'] = int(random.choice(config['port_password'].items())[0])
config['password'] = common.to_str(config['port_password']["%s" % config['server_port']])
else:
if type(config['server_port']) == list and config['server_port']:
config['server_port'] = random.choice(config.get('server_port', 8388))
else:
config['server_port'] == int(common.to_str(config.get('server_port',8388)))
config["password"] = str(config["port_password"]["%s" % config["server_port"]]).strip()
logging.warn('!' * 30)
logging.info("OK.. I choose this guy to help me f**k the GFW.. [ %s : %s : %s : %s : %s]" % (config['server'],config['server_port'],config['password'],config['server_info']["%s" % config['server']],config['method']))
logging.warn('!' * 30)
time.sleep(1)
daemon.daemon_exec(config)
try:
logging.info("starting local at %s:%d" % (config['local_address'], config['local_port']))
dns_resolver = asyncdns.DNSResolver(config)
tcp_server = tcprelay.TCPRelay(config, dns_resolver, True)
udp_server = udprelay.UDPRelay(config, dns_resolver, True)
loop = eventloop.EventLoop(config)
dns_resolver.add_to_loop(loop)
tcp_server.add_to_loop(loop)
udp_server.add_to_loop(loop)
def handler(signum, _):
logging.warn('received SIGQUIT, doing graceful shutting down..')
tcp_server.close(next_tick=True)
udp_server.close(next_tick=True)
signal.signal(getattr(signal, 'SIGQUIT', signal.SIGTERM), handler)
def int_handler(signum, _):
sys.exit(1)
signal.signal(signal.SIGINT, int_handler)
daemon.set_user(config.get('user', None))
loop.run()
except Exception as e:
shell.print_exception(e)
sys.exit(1)
def get_config(is_local):
global verbose
global config
if is_local:
shortopts = 'hd:s:b:p:k:l:m:c:t:vq'
longopts = ['help', 'fast-open', 'pid-file=', 'log-file=', 'user='******'version']
else:
shortopts = 'hd:s:p:k:m:c:t:vq'
longopts = ['help', 'fast-open', 'pid-file=', 'log-file=', 'workers=',
'forbidden-ip=', 'user='******'version']
try:
config_path = find_config()
optlist, args = getopt.getopt(sys.argv[1:], shortopts, longopts)
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.loads(f.read().decode('utf8'),
object_hook=_decode_dict)
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:], shortopts, longopts)
v_count = 0
for key, value in optlist:
if key == '-p':
config['server_port'] = int(value)
elif key == '-k':
config['password'] = to_bytes(value)
elif key == '-l':
config['local_port'] = int(value)
elif key == '-s':
config['server'] = to_str(value)
elif key == '-m':
config['method'] = to_str(value)
elif key == '-b':
config['local_address'] = to_str(value)
elif key == '-v':
v_count += 1
# '-vv' turns on more verbose mode
config['verbose'] = v_count
elif key == '-t':
config['timeout'] = int(value)
elif key == '--fast-open':
config['fast_open'] = True
elif key == '--workers':
config['workers'] = int(value)
elif key == '--user':
config['user'] = to_str(value)
elif key == '--forbidden-ip':
config['forbidden_ip'] = to_str(value).split(',')
elif key in ('-h', '--help'):
if is_local:
print_local_help()
else:
print_server_help()
sys.exit(0)
elif key == '--version':
print_shadowsocks()
sys.exit(0)
elif key == '-d':
config['daemon'] = to_str(value)
elif key == '--pid-file':
config['pid-file'] = to_str(value)
elif key == '--log-file':
config['log-file'] = to_str(value)
elif key == '-q':
v_count -= 1
config['verbose'] = v_count
except getopt.GetoptError as e:
print(e, file=sys.stderr)
print_help(is_local)
sys.exit(2)
if not config:
logging.error('config not specified')
print_help(is_local)
sys.exit(2)
config['password'] = to_bytes(config.get('password', b''))
config['method'] = to_str(config.get('method', 'aes-256-cfb'))
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)
config['pid-file'] = config.get('pid-file', '/var/run/shadowsocks.pid')
config['log-file'] = config.get('log-file', '/var/log/shadowsocks.log')
config['workers'] = config.get('workers', 1)
config['verbose'] = config.get('verbose', False)
config['local_address'] = to_str(config.get('local_address', '127.0.0.1'))
config['local_port'] = config.get('local_port', 1080)
if is_local:
if config.get('server', None) is None:
logging.error('server addr not specified')
print_local_help()
sys.exit(2)
else:
config['server'] = to_str(config['server'])
else:
config['server'] = to_str(config.get('server', '0.0.0.0'))
try:
config['forbidden_ip'] = \
IPNetwork(config.get('forbidden_ip', '127.0.0.0/8,::1/128'))
except Exception as e:
logging.error(e)
sys.exit(2)
config['server_port'] = config.get('server_port', 8388)
logging.getLogger('').handlers = []
logging.addLevelName(VERBOSE_LEVEL, 'VERBOSE')
if config['verbose'] >= 2:
level = VERBOSE_LEVEL
elif config['verbose'] == 1:
level = logging.DEBUG
elif config['verbose'] == -1:
level = logging.WARN
elif config['verbose'] <= -2:
level = logging.ERROR
else:
level = logging.INFO
verbose = config['verbose']
logging.basicConfig(level=level,
format='%(asctime)s %(levelname)-8s %(message)s',
datefmt='%Y-%m-%d %H:%M:%S',
filemode='w')
# 定义一个1分钟换一次log文件的handler
filehandler = logging.handlers.TimedRotatingFileHandler(
"/var/log/shadowsocks/sslog", 'D', 2, 15)
filehandler.suffix = "%Y%m%d-%H%M.log"
# set a format which is simpler for console use
formatter = logging.Formatter("%(asctime)s %(levelname)-8s %(message)s","%Y-%m-%d %H:%M:%S");
filehandler.setFormatter(formatter)
#logging.getLogger('').addHandler(console)
logging.getLogger('').addHandler(filehandler)
check_config(config, is_local)
return config
def _handle_server(self):
server = self._server_socket
data, r_addr = server.recvfrom(BUF_SIZE)
if not data:
logging.debug('UDP handle_server: data is empty')
if self._is_local:
frag = common.ord(data[2])
if frag != 0:
logging.warn('drop a message since frag is not 0')
return
else:
data = data[3:]
else:
data = encrypt.encrypt_all(self._password, self._method, 0, data)
# decrypt data
if not data:
logging.debug('UDP handle_server: data is empty after decrypt')
return
header_result = parse_header(data)
if header_result is None:
return
addrtype, dest_addr, dest_port, header_length = header_result
if self._is_local:
server_addr, server_port = self._get_a_server()
else:
server_addr, server_port = dest_addr, dest_port
addrs = self._dns_cache.get(server_addr, None)
if addrs is None:
addrs = socket.getaddrinfo(server_addr, server_port, 0,
socket.SOCK_DGRAM, socket.SOL_UDP)
if not addrs:
# drop
return
else:
self._dns_cache[server_addr] = addrs
af, socktype, proto, canonname, sa = addrs[0]
key = client_key(r_addr, af)
logging.debug(key)
client = self._cache.get(key, None)
if not client:
# TODO async getaddrinfo
if self._forbidden_iplist:
if common.to_str(sa[0]) in self._forbidden_iplist:
logging.debug('IP %s is in forbidden list, drop' %
common.to_str(sa[0]))
# drop
return
client = socket.socket(af, socktype, proto)
client.setblocking(False)
self._cache[key] = client
self._client_fd_to_server_addr[client.fileno()] = r_addr
self._sockets.add(client.fileno())
self._eventloop.add(client, eventloop.POLL_IN)
if self._is_local:
data = encrypt.encrypt_all(self._password, self._method, 1, data)
if not data:
return
else:
data = data[header_length:]
if not data:
return
try:
client.sendto(data, (server_addr, server_port))
except IOError as e:
err = eventloop.errno_from_exception(e)
if err in (errno.EINPROGRESS, errno.EAGAIN):
pass
else:
shell.print_exception(e)
