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#!/usr/bin/python
# -*- coding:utf-8 -*-
import re
from ProxyDecoder import baseFunc
def __ssPlainDecode(url: str) -> dict or None:
"""
Shadowsocks原始分享链接解码
FORMAT: ss://method:password@hostname:port#TAG
EXAMPLE:
ss://bf-cfb:test@192.168.100.1:8888#EXAMPLE
"""
try:
content = re.search(r'^ss://([\s\S]+?)(#[\s\S]*)?$', url) # ...#REMARK
info = re.search(
r'^([\S]+?):([\S]+)@([a-zA-Z0-9.:_-]+):([0-9]+)$',
content.group(1) # method:password@server:port
)
remark = content.group(2)[1:] if content.group(2) is not None else ''
remark = remark.replace('+', ' ') # 向后兼容部分客户端
return {
'server': info[3],
'port': int(info[4]),
'passwd': info[2],
'method': info[1],
'remark': baseFunc.urlDecode(remark)
}
except:
return None
def __ssCommonDecode(url: str) -> dict or None:
"""
Shadowsocks经典分享链接解码
FORMAT: ss://BASE64-ENCODED-STRING-WITHOUT-PADDING#TAG
EXAMPLE:
base64('bf-cfb:test/!@#:@192.168.100.1:8888')
-> YmYtY2ZiOnRlc3QvIUAjOkAxOTIuMTY4LjEwMC4xOjg4ODg
-> ss://YmYtY2ZiOnRlc3QvIUAjOkAxOTIuMTY4LjEwMC4xOjg4ODg#example-server
"""
try:
content = re.search(r'^ss://([a-zA-Z0-9_=+\\-]+)#?([\S]*)?$', url) # base64#REMARK
info = re.search(
r'^([\S]+?):([\S]+)@([a-zA-Z0-9.:_-]+):([0-9]+)$',
baseFunc.base64Decode(content.group(1)) # method:password@server:port
)
return {
'server': info[3],
'port': int(info[4]),
'passwd': info[2],
'method': info[1],
'remark': baseFunc.urlDecode(content.group(2))
}
except:
return None
def __sip002Decode(url: str) -> dict or None:
"""
Shadowsocks SIP002分享链接解码
FORMAT:
SS-URI = "ss://" {userinfo} "@" hostname ":" port [ "/" ] [ "?" plugin ] [ "#" tag ]
userinfo = websafe-base64-encode-utf8(method ":" password)
EXAMPLE:
base64('rc4-md5:passwd') -> cmM0LW1kNTpwYXNzd2Q
obfs-local;obfs=http -> obfs-local%3Bobfs%3Dhttp
=> ss://cmM0LW1kNTpwYXNzd2Q@192.168.100.1:8888/?plugin=obfs-local%3Bobfs%3Dhttp#Example
"""
try:
content = re.search(
r'^ss://([a-zA-Z0-9_=+\\-]+)@([a-zA-Z0-9.:_-]+):([0-9]+)'
r'/?([\S]*)$', url # base64@server:port/... (/可选)
)
userInfo = re.search(
r'^([\S]+?):([\S]+)$',
baseFunc.base64Decode(content.group(1)) # method:password
)
info = {
'server': content.group(2),
'port': int(content.group(3)),
'passwd': userInfo.group(2),
'method': userInfo.group(1),
'remark': ''
}
if content.group(4).find('#') != -1: # ...#REMARK
content = re.search(
r'^\??([\S]*)#([\S]*)$',
content.group(4) # ?...#REMARK (?可选)
)
info['remark'] = baseFunc.urlDecode(
content.group(2)
)
else:
content = re.search(
r'^\??([\S]*)$',
content.group(4) # ?... (?可选)
)
plugin = ''
for field in content.group(1).split('&'): # /?plugin=...&other1=...&other2=...
if field.find('=') == -1: # 缺失xxx=...
continue
field = re.search(r'^([\S]*?)=([\S]*)$', field) # xxx=...
if field.group(1) == 'plugin':
plugin = baseFunc.urlDecode(field.group(2)) # plugin参数
break
if plugin.find(';') == -1: # plugin=... (无参数)
pluginField = {
'type': plugin,
'param': ''
}
else: # plugin=...;... (带参数)
plugin = re.search(r'^([\S]*?);([\S]*)$', plugin) # 插件名;插件参数
pluginField = {
'type': plugin.group(1),
'param': plugin.group(2)
}
if pluginField['type'] == '': # 无插件情况
info['plugin'] = None
else:
info['plugin'] = pluginField
return info
except:
return None
def ssDecode(url: str) -> dict or None:
"""
Shadowsocks分享链接解码
链接合法:
return {
'type': 'ss',
...
}
链接不合法:
return None
"""
try:
if url[0:5] != 'ss://':
return None
result = __ssCommonDecode(url) # try shadowsocks common decode
if result is None:
result = __sip002Decode(url) # try shadowsocks sip002 decode
if result is None:
result = __ssPlainDecode(url) # try shadowsocks plain decode
if result is not None: # 解析成功
result['type'] = 'ss'
return result
except:
pass
return None