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shadowsocksr
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Python port of ShadowsocksR
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shadowsocksr/shadowsocks/shell.py

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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright 2015 clowwindy
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from __future__ import absolute_import, division, print_function, \
with_statement
import os
import json
import sys
import getopt
import logging
from shadowsocks.common import to_bytes, to_str, IPNetwork, PortRange
from shadowsocks import encrypt
VERBOSE_LEVEL = 5
verbose = 0
def check_python():
info = sys.version_info
if info[0] == 2 and not info[1] >= 6:
print('Python 2.6+ required')
sys.exit(1)
elif info[0] == 3 and not info[1] >= 3:
print('Python 3.3+ required')
sys.exit(1)
elif info[0] not in [2, 3]:
print('Python version not supported')
sys.exit(1)
def print_exception(e):
global verbose
logging.error(e)
if verbose > 0:
import traceback
traceback.print_exc()
def __version():
version_str = ''
try:
import pkg_resources
version_str = pkg_resources.get_distribution('shadowsocks').version
except Exception:
try:
from shadowsocks import version
version_str = version.version()
except Exception:
pass
return version_str
def print_shadowsocks():
print('ShadowsocksR %s' % __version())
def log_shadowsocks_version():
logging.info('ShadowsocksR %s' % __version())
def find_config():
user_config_path = 'user-config.json'
config_path = 'config.json'
def sub_find(file_name):
if os.path.exists(file_name):
return file_name
file_name = os.path.join(os.path.abspath('..'), file_name)
return file_name if os.path.exists(file_name) else None
return sub_find(user_config_path) or sub_find(config_path)
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.warning('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.warning('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.warning('warning: table is not safe; please use a safer cipher, '
'like AES-256-CFB')
if (config.get('method', '') or '').lower() == 'rc4':
logging.warning('warning: RC4 is not safe; please use a safer cipher, '
'like AES-256-CFB')
if config.get('timeout', 300) < 100:
logging.warning('warning: your timeout %d seems too short' %
int(config.get('timeout')))
if config.get('timeout', 300) > 600:
logging.warning('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 get_config(is_local):
global verbose
config = {}
config_path = None
logging.basicConfig(level=logging.INFO,
format='%(levelname)-s: %(message)s')
if is_local:
shortopts = 'hd:s:b:p:k:l:m:O:o:G:g:c:t:vq'
longopts = ['help', 'fast-open', 'pid-file=', 'log-file=', 'user=',
'version']
else:
shortopts = 'hd:s:p:k:m:O:o:G:g:c:t:vq'
longopts = ['help', 'fast-open', 'pid-file=', 'log-file=', 'workers=',
'forbidden-ip=', 'user=', 'manager-address=', 'version']
try:
optlist, args = getopt.getopt(sys.argv[1:], shortopts, longopts)
for key, value in optlist:
if key == '-c':
config_path = value
elif key in ('-h', '--help'):
print_help(is_local)
sys.exit(0)
elif key == '--version':
print_shadowsocks()
sys.exit(0)
else:
continue
if config_path is None:
config_path = find_config()
if config_path:
logging.debug('loading config from %s' % config_path)
with open(config_path, 'rb') as f:
try:
config = parse_json_in_str(remove_comment(f.read().decode('utf8')))
except ValueError as e:
logging.error('found an error in config.json: %s', str(e))
sys.exit(1)
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 == '-O':
config['protocol'] = to_str(value)
elif key == '-o':
config['obfs'] = to_str(value)
elif key == '-G':
config['protocol_param'] = to_str(value)
elif key == '-g':
config['obfs_param'] = 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 == '--manager-address':
config['manager_address'] = value
elif key == '--user':
config['user'] = to_str(value)
elif key == '--forbidden-ip':
config['forbidden_ip'] = to_str(value)
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
else:
continue
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['protocol'] = to_str(config.get('protocol', 'origin'))
config['protocol_param'] = to_str(config.get('protocol_param', ''))
config['obfs'] = to_str(config.get('obfs', 'plain'))
config['obfs_param'] = to_str(config.get('obfs_param', ''))
config['port_password'] = config.get('port_password', None)
config['additional_ports'] = config.get('additional_ports', {})
config['timeout'] = int(config.get('timeout', 300))
config['udp_timeout'] = int(config.get('udp_timeout', 120))
config['udp_cache'] = int(config.get('udp_cache', 64))
config['fast_open'] = config.get('fast_open', False)
config['workers'] = config.get('workers', 1)
config['pid-file'] = config.get('pid-file', '/var/run/shadowsocksr.pid')
config['log-file'] = config.get('log-file', '/var/log/shadowsocksr.log')
config['verbose'] = config.get('verbose', False)
config['connect_verbose_info'] = config.get('connect_verbose_info', 0)
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)
try:
config['forbidden_port'] = PortRange(config.get('forbidden_port', ''))
except Exception as e:
logging.error(e)
sys.exit(2)
try:
config['ignore_bind'] = \
IPNetwork(config.get('ignore_bind', '127.0.0.0/8,::1/128,10.0.0.0/8,192.168.0.0/16'))
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 %(filename)s:%(lineno)s %(message)s',
datefmt='%Y-%m-%d %H:%M:%S')
check_config(config, is_local)
return config
def print_help(is_local):
if is_local:
print_local_help()
else:
print_server_help()
def print_local_help():
print('''usage: sslocal [OPTION]...
A fast tunnel proxy that helps you bypass firewalls.
You can supply configurations via either config file or command line arguments.
Proxy options:
-c CONFIG path to config file
-s SERVER_ADDR server address
-p SERVER_PORT server port, default: 8388
-b LOCAL_ADDR local binding address, default: 127.0.0.1
-l LOCAL_PORT local port, default: 1080
-k PASSWORD password
-m METHOD encryption method, default: aes-256-cfb
-o OBFS obfsplugin, default: http_simple
-t TIMEOUT timeout in seconds, default: 300
--fast-open use TCP_FASTOPEN, requires Linux 3.7+
General options:
-h, --help show this help message and exit
-d start/stop/restart daemon mode
--pid-file PID_FILE pid file for daemon mode
--log-file LOG_FILE log file for daemon mode
--user USER username to run as
-v, -vv verbose mode
-q, -qq quiet mode, only show warnings/errors
--version show version information
Online help: <https://github.com/shadowsocks/shadowsocks>
''')
def print_server_help():
print('''usage: ssserver [OPTION]...
A fast tunnel proxy that helps you bypass firewalls.
You can supply configurations via either config file or command line arguments.
Proxy options:
-c CONFIG path to config file
-s SERVER_ADDR server address, default: 0.0.0.0
-p SERVER_PORT server port, default: 8388
-k PASSWORD password
-m METHOD encryption method, default: aes-256-cfb
-o OBFS obfsplugin, default: http_simple
-t TIMEOUT timeout in seconds, default: 300
--fast-open use TCP_FASTOPEN, requires Linux 3.7+
--workers WORKERS number of workers, available on Unix/Linux
--forbidden-ip IPLIST comma seperated IP list forbidden to connect
--manager-address ADDR optional server manager UDP address, see wiki
General options:
-h, --help show this help message and exit
-d start/stop/restart daemon mode
--pid-file PID_FILE pid file for daemon mode
--log-file LOG_FILE log file for daemon mode
--user USER username to run as
-v, -vv verbose mode
-q, -qq quiet mode, only show warnings/errors
--version show version information
Online help: <https://github.com/shadowsocks/shadowsocks>
''')
def _decode_list(data):
rv = []
for item in data:
if hasattr(item, 'encode'):
item = item.encode('utf-8')
elif isinstance(item, list):
item = _decode_list(item)
elif isinstance(item, dict):
item = _decode_dict(item)
rv.append(item)
return rv
def _decode_dict(data):
rv = {}
for key, value in data.items():
if hasattr(value, 'encode'):
value = value.encode('utf-8')
elif isinstance(value, list):
value = _decode_list(value)
elif isinstance(value, dict):
value = _decode_dict(value)
rv[key] = value
return rv
class JSFormat:
def __init__(self):
self.state = 0
def push(self, ch):
ch = ord(ch)
if self.state == 0:
if ch == ord('"'):
self.state = 1
return to_str(chr(ch))
elif ch == ord('/'):
self.state = 3
else:
return to_str(chr(ch))
elif self.state == 1:
if ch == ord('"'):
self.state = 0
return to_str(chr(ch))
elif ch == ord('\\'):
self.state = 2
return to_str(chr(ch))
elif self.state == 2:
self.state = 1
if ch == ord('"'):
return to_str(chr(ch))
return "\\" + to_str(chr(ch))
elif self.state == 3:
if ch == ord('/'):
self.state = 4
else:
return "/" + to_str(chr(ch))
elif self.state == 4:
if ch == ord('\n'):
self.state = 0
return "\n"
return ""
def remove_comment(json):
fmt = JSFormat()
return "".join([fmt.push(c) for c in json])
def parse_json_in_str(data):
# parse json and convert everything from unicode to str
return json.loads(data, object_hook=_decode_dict)