miui-auto-tasks/utils/utils.py

import random
import time
from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
from cryptography.hazmat.primitives.asymmetric.padding import PKCS1v15
from cryptography.hazmat.primitives import padding, serialization
from cryptography.hazmat.backends import default_backend
import base64
from urllib.parse import urlparse, parse_qsl
from pydantic import ValidationError
from typing import Type
from tenacity import RetryError, Retrying, stop_after_attempt

from .request import get, post
from .data_model import TokenResultHandler
from .logger import log
from .captcha import get_validate

public_key_pem = '''-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArxfNLkuAQ/BYHzkzVwtu
g+0abmYRBVCEScSzGxJIOsfxVzcuqaKO87H2o2wBcacD3bRHhMjTkhSEqxPjQ/FE
XuJ1cdbmr3+b3EQR6wf/cYcMx2468/QyVoQ7BADLSPecQhtgGOllkC+cLYN6Md34
Uii6U+VJf0p0q/saxUTZvhR2ka9fqJ4+6C6cOghIecjMYQNHIaNW+eSKunfFsXVU
+QfMD0q2EM9wo20aLnos24yDzRjh9HJc6xfr37jRlv1/boG/EABMG9FnTm35xWrV
R0nw3cpYF7GZg13QicS/ZwEsSd4HyboAruMxJBPvK3Jdr4ZS23bpN0cavWOJsBqZ
VwIDAQAB
-----END PUBLIC KEY-----'''

headers = {
    'Accept': '*/*',
    'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6',
    'Cache-Control': 'no-cache',
    'Connection': 'keep-alive',
    'Content-type': 'application/x-www-form-urlencoded',
    'Origin': 'https://web.vip.miui.com',
    'Pragma': 'no-cache',
    'Referer': 'https://web.vip.miui.com/',
    'Sec-Fetch-Dest': 'empty',
    'Sec-Fetch-Mode': 'cors',
    'Sec-Fetch-Site': 'cross-site',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36 Edg/119.0.0.0',
    'sec-ch-ua': '"Microsoft Edge";v="119", "Chromium";v="119", "Not?A_Brand";v="24"',
    'sec-ch-ua-mobile': '?0',
    'sec-ch-ua-platform': '"Windows"',
}

def get_random_chars_as_string(count: int) -> str:
    characters = list('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890!@#,%^&*()-=_+~`{}[]|:<>.?/')
    selected_chars = random.sample(characters, count)
    return ''.join(selected_chars)

def aes_encrypt(key, data) -> base64:
    iv = b'0102030405060708'
    cipher = Cipher(algorithms.AES(key.encode('utf-8')), modes.CBC(iv), backend=default_backend())
    encryptor = cipher.encryptor()
    padder = padding.PKCS7(algorithms.AES.block_size).padder()
    padded_data = padder.update(data.encode('utf-8')) + padder.finalize()
    ciphertext = encryptor.update(padded_data) + encryptor.finalize()
    return base64.b64encode(ciphertext).decode('utf-8')

def rsa_encrypt(public_key_pem, data: str) -> base64:
    public_key = serialization.load_pem_public_key(
        public_key_pem.encode('utf-8'),
        backend=default_backend()
    )
    encoded_data = base64.b64encode(data.encode('utf-8'))
    ciphertext = public_key.encrypt(
        encoded_data,
        PKCS1v15()
    )

    return base64.b64encode(ciphertext).decode('utf-8')

IncorrectReturn = (KeyError, TypeError, AttributeError, IndexError, ValidationError)
"""API返回数据无效会触发的异常组合"""
def is_incorrect_return(exception: Exception, *addition_exceptions: Type[Exception]) -> bool:
    """
    判断是否是API返回数据无效的异常
    :param exception: 异常对象
    :param addition_exceptions: 额外的异常类型，用于触发判断
    """
    exceptions = IncorrectReturn + addition_exceptions
    return isinstance(exception, exceptions) or isinstance(exception.__cause__, exceptions)

async def get_token_by_captcha(url: str) -> str:
    try:
        parsed_url = urlparse(url)
        query_params = dict(parse_qsl(parsed_url.query)) # 解析URL参数
        gt = query_params.get("c")
        challenge = query_params.get("l")
        geetest_data = await get_validate(gt, challenge)
        params = {
            'k': '3dc42a135a8d45118034d1ab68213073',
            'locale': 'zh_CN',
            '_t': round(time.time()*1000),
        }

        data = {
            'e': query_params.get("e"), # 人机验证的e参数，来自URL
            'challenge': geetest_data.challenge,
            'seccode': f'{geetest_data.validate}|jordan',
        }

        response = await post('https://verify.sec.xiaomi.com/captcha/v2/gt/dk/verify', params=params, headers=headers, data=data)
        log.debug(response.text)
        result = response.json()
        api_data = TokenResultHandler(result)
        if api_data.success:
            return api_data.token
        elif not api_data.data.get("result"):
            log.error("遇到人机验证码，无法获取TOKEN")
            return False
        else:
            log.error("遇到未知错误，无法获取TOKEN")
            return False
    except Exception:
        log.exception("获取TOKEN异常")
        return False
    
async def get_token(uid: str) -> str:
    try:
        for attempt in Retrying(stop=stop_after_attempt(3)):
            with attempt:
                data = {
                    "type": 0,
                    "startTs": round(time.time()*1000),
                    "endTs": round(time.time()*1000),
                    "env": {
                        "p1": "",
                        "p2": "",
                        "p3": "",
                        "p4": "",
                        "p5": "",
                        "p6": "",
                        "p7": "",
                        "p8": "",
                        "p9": "",
                        "p10": "",
                        "p11": "",
                        "p12": "",
                        "p13": "",
                        "p14": "",
                        "p15": "",
                        "p16": "",
                        "p17": "",
                        "p18": "",
                        "p19": "",
                        "p20": "",
                        "p21": "",
                        "p22": "",
                        "p23": "",
                        "p24": "",
                        "p25": "",
                        "p26": "",
                        "p28": "",
                        "p29": "",
                        "p30": "",
                        "p31": "",
                        "p32": "",
                        "p33": [],
                        "p34": ""
                    },
                    "action": {
                        "a1": [],
                        "a2": [],
                        "a3": [],
                        "a4": [],
                        "a5": [],
                        "a6": [],
                        "a7": [],
                        "a8": [],
                        "a9": [],
                        "a10": [],
                        "a11": [],
                        "a12": [],
                        "a13": [],
                        "a14": []
                    },
                    "force": False,
                    "talkBack": False,
                    "uid": uid,
                    "nonce": {
                        "t": round(time.time()),
                        "r": round(time.time())
                    },
                    "version": "2.0",
                    "scene": "GROW_UP_CHECKIN"
                }

                key = get_random_chars_as_string(16)

                params = {
                    'k': '3dc42a135a8d45118034d1ab68213073',
                    'locale': 'zh_CN',
                    '_t': round(time.time()*1000),
                }


                data = {
                    's': rsa_encrypt(public_key_pem, key),
                    'd': aes_encrypt(key, str(data)),
                    'a': 'GROW_UP_CHECKIN',
                }
                response = await post('https://verify.sec.xiaomi.com/captcha/v2/data', params=params, headers=headers, data=data)
                result = response.json()
                api_data = TokenResultHandler(result)
                if api_data.success:
                    return api_data.token
                elif api_data.need_verify:
                    log.error("遇到人机验证码, 尝试调用解决方案")
                    url = api_data.data.get("url")
                    for _ in range(3):
                        if toekn := await get_token_by_captcha(url):
                            return toekn
                    return False
                else:
                    log.error("遇到未知错误，无法获取TOKEN")
                    return False
    except RetryError as e:
        if is_incorrect_return(e):
            log.exception(f"TOKEN - 服务器没有正确返回 {response.text}")
        else:
            log.exception("获取TOKEN异常")
        return False