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89 lines
3.3 KiB
89 lines
3.3 KiB
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# SIP002: https://shadowsocks.org/guide/sip002.html
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# Plain / Common: https://shadowsocks.org/guide/configs.html#uri-and-qr-code
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import copy
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from Utils.Logger import logger
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from Basis.Exception import decodeException
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from Utils.Common import urlDecode, base64Decode
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ssBasicConfig = {
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'type': 'ss',
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'info': {}
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}
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def checkPrefix(url: str) -> str: # check url prefix and remove it
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if not url.startswith('ss://'):
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logger.debug('Shadowsocks url should start with `ss://`')
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raise decodeException('Shadowsocks prefix error')
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return url[5:]
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def splitTag(url: str, fromLeft: bool = True, spaceRemark: bool = True) -> tuple[str, str]: # split tag after `#`
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if '#' not in url: # without tag
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return url, ''
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if fromLeft:
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url, remark = url.split('#', 1) # from left search
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else:
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url, remark = url.rsplit('#', 1) # from right search
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if spaceRemark: # deal with space remark for space
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remark = remark.replace('+', ' ')
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return url, urlDecode(remark)
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def ssPlain(url: str) -> dict:
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"""
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FORMAT: ss://method:password@hostname:port[#TAG]
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"""
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config = copy.deepcopy(ssBasicConfig)
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logger.debug('Shadowsocks plain decode -> %s' % url)
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url, config['name'] = splitTag(checkPrefix(url), False)
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userinfo, url = url.rsplit('@', 1)
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config['info']['server'], config['info']['port'] = url.rsplit(':', 1)
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config['info']['method'], config['info']['passwd'] = userinfo.split(':', 1)
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logger.debug('Shadowsocks plain decode release -> %s', config)
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return config
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def ssCommon(url: str) -> dict:
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"""
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FORMAT: ss://BASE64-ENCODED-STRING-WITHOUT-PADDING[#TAG]
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base64('method:password@hostname:port')
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"""
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config = copy.deepcopy(ssBasicConfig)
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logger.debug('Shadowsocks common decode -> %s' % url)
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url, config['name'] = splitTag(checkPrefix(url))
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userinfo, url = base64Decode(url).rsplit('@', 1)
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config['info']['server'], config['info']['port'] = url.rsplit(':', 1)
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config['info']['method'], config['info']['passwd'] = userinfo.split(':', 1)
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logger.debug('Shadowsocks common decode release -> %s', config)
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return config
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def sip002(url: str) -> dict:
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"""
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FORMAT: ss://userinfo@hostname:port [ "/" ] [ "?" plugin ] [ #tag ]
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userinfo => method:password or websafe-base64-encode-utf8(method:password)
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"""
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config = copy.deepcopy(ssBasicConfig)
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logger.debug('Shadowsocks sip002 decode -> %s' % url)
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url, config['name'] = splitTag(checkPrefix(url))
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userinfo, url = url.rsplit('@', 1)
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try:
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userinfo = base64Decode(userinfo) # userinfo encode base64 is optional
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except:
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userinfo = urlDecode(userinfo) # not base64 decode -> url encode format
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config['info']['method'], config['info']['passwd'] = userinfo.split(':', 1)
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url = url.replace('/?plugin=', '?plugin=') # remove `/` character
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if '?plugin=' in url:
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url, plugin = url.split('?plugin=', 1)
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plugin = urlDecode(plugin).split(';', 1)
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config['info']['plugin'] = {
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'type': plugin[0],
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'param': '' if len(plugin) == 1 else plugin[1] # default as empty string
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}
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config['info']['server'], config['info']['port'] = url.rsplit(':', 1)
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logger.debug('Shadowsocks sip002 decode release -> %s', config)
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return config
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