#!/usr/bin/python
# -*- coding:utf-8 -*-

import json

ssrMethodList = [ # 加密方法
    "aes-128-cfb",
    "aes-192-cfb",
    "aes-256-cfb",
    "aes-128-cfb1",
    "aes-192-cfb1",
    "aes-256-cfb1",
    "aes-128-cfb8",
    "aes-192-cfb8",
    "aes-256-cfb8",
    "aes-128-ctr",
    "aes-192-ctr",
    "aes-256-ctr",
    "aes-128-gcm",
    "aes-192-gcm",
    "aes-256-gcm",
    "aes-128-ofb",
    "aes-192-ofb",
    "aes-256-ofb",
    "camellia-128-cfb",
    "camellia-192-cfb",
    "camellia-256-cfb",
    "none",
    "table",
    "rc4",
    "rc4-md5",
    "rc4-md5-6",
    "bf-cfb",
    "cast5-cfb",
    "des-cfb",
    "idea-cfb",
    "seed-cfb",
    "rc2-cfb",
    "salsa20",
    "xsalsa20",
    "chacha20",
    "xchacha20",
    "chacha20-ietf",
]

ssrProtocolList = [ # 协议
    "origin",
    "verify_sha1",
    "verify_simple",
    "verify_deflate",
    "auth_simple",
    "auth_sha1",
    "auth_sha1_v2",
    "auth_sha1_v4",
    "auth_aes128",
    "auth_aes128_md5",
    "auth_aes128_sha1",
    "auth_chain_a",
    "auth_chain_b",
    "auth_chain_c",
    "auth_chain_d",
    "auth_chain_e",
    "auth_chain_f",
]

ssrObfsList = [ # 混淆方式
    "plain",
    "http_post",
    "http_simple",
    "tls_simple",
    "tls1.2_ticket_auth",
    "tls1.2_ticket_fastauth",
    "random_head",
]

def load(proxyInfo, socksPort, configFile): # ShadowsocksR配置载入
    if not proxyInfo['method'] in ssrMethodList:
        return None, None # 匹配不到加密方法
    if not proxyInfo['protocol'] in ssrProtocolList:
        return None, None # 匹配不到协议
    if not proxyInfo['obfs'] in ssrObfsList:
        return None, None # 匹配不到混淆方式
    return [ 'ssr-local', '-c', configFile ], json.dumps({
        'server': proxyInfo['server'],
        'server_port': int(proxyInfo['port']),
        'local_address': '127.0.0.1',
        'local_port': int(socksPort),
        'password': proxyInfo['password'],
        'method': proxyInfo['method'],
        'protocol': proxyInfo['protocol'],
        'protocol_param': proxyInfo['protocolParam'],
        'obfs': proxyInfo['obfs'],
        'obfs_param': proxyInfo['obfsParam']
    })