完整版 灰机@Lank5735

# -*- coding: UTF-8 -*-
import base64
import binascii
from urllib import parse
from lib.xhs_shield_calc.XYOldShield_706 import get_oldsign
import time
import requests
import string
import random


class IOS:
    def get_ter_str(self, device_info, xycommonparams, xyplatforminfo):
        ts = int(time.time())
        url = "https://www.xiaohongshu.com/api/sns/v3/user/me?deviceId={}&device_fingerprint={}&device_fingerprint1={}&fid=1605335236101e0d28eb076dacfe290f2edc95ed7d21&lang=zh&platform=android&sid={}&sign=b1c352302484d97e6e9c93f7334a2720&t={}".format(
            device_info['deviceId'], device_info['device_fingerprint'], device_info['device_fingerprint'],
            device_info['sid'], ts)
        header = {
            "User-Agent": "discover/6.92 (iPhone; iOS 13.6; Scale/2.00) Resolution/828*1792 Version/6.92 Build/6920189 Device/(Apple Inc.;iPhone11,8) NetType/CellNetwork",
            "xy-common-params": xycommonparams,
            "xy-platform-info": xyplatforminfo,
        }
        response = requests.get(url, headers=header)
        return response.headers["xy-ter-str"]

    def getSign(self, url, main_hmac, xycommonparams, xyplatforminfo, device_info, data={}):
        parsed = parse.urlparse(url)
        path = parsed.path
        args = parse.parse_qs(parsed.query, keep_blank_values=True)
        params = dict([(k, v[0]) for k, v in args.items()])
        # main_hmac = get_ter_str(device_info=device_info, xycommonparams=xycommonparams, xyplatforminfo=xyplatforminfo)
        shield = get_oldsign(
            path=path,
            params=parse.urlencode(params),
            xy_common_params=xycommonparams,
            xy_platform_info=xyplatforminfo,
            data=parse.urlencode(data),
            main_hmac=main_hmac,
            device_id=device_info['deviceId']
        )
        return shield


class AndroidShield:
    __apk_version_build = "7060192"
    __app_id = "ecfaaf01"

    def __init__(self):
        """
        :param device_key: 小红书返回的x-ter-str
        :param device_id: 设备id
        :param content: 加密的内容
        """
        # self.device_key = device_key
        # self.device_id = device_id
        # self.content = content

    def get_ter_str(self, device_info, xycommonparams, xyplatforminfo):
        ts = int(time.time())
        url = "https://www.xiaohongshu.com/api/sns/v3/user/me?deviceId={}&device_fingerprint={}&device_fingerprint1={}&fid=1605335236101e0d28eb076dacfe290f2edc95ed7d21&lang=zh&platform=android&sid={}&sign=b1c352302484d97e6e9c93f7334a2720&t={}".format(
            device_info['deviceId'], device_info['device_fingerprint'], device_info['device_fingerprint'],
            device_info['sid'], ts)
        header = {
            "User-Agent": "discover/6.92 (iPhone; iOS 13.6; Scale/2.00) Resolution/828*1792 Version/6.92 Build/6920189 Device/(Apple Inc.;iPhone11,8) NetType/CellNetwork",
            "xy-common-params": xycommonparams,
            "xy-platform-info": xyplatforminfo,
        }
        response = requests.get(url, headers=header)
        return response.headers["xy-ter-str"]

    @staticmethod
    def strT0Hexstr(str):
        return binascii.hexlify(str.encode()).decode('utf-8')

    def getSign(self, path='', params='', xy_common_params='', xy_platform_info='', data='', content='',
                main_hmac='', device_id=''):
        """
        生成签名  根据main_hmac device_id解密出一个key。
        """
        _res = get_oldsign(path=path, params=params, xy_common_params=xy_common_params,
                           xy_platform_info=xy_platform_info, data=data,
                           content=content, main_hmac=main_hmac, device_id=device_id)
        newsign = self.calc_shield(device_id=device_id, oldsign=_res)
        return newsign

    def init_table(self):
        a1 = [0 for i in range(0x102)]
        a2 = 13
        a3 = [0x73, 0x74, 0x64, 0x3a, 0x3a, 0x61, 0x62, 0x6f, 0x72, 0x74, 0x28, 0x29, 0x3b]
        a1[0] = 0
        a1[1] = 0
        v11 = 0
        v7 = 0
        for i in range(256):
            a1[i + 2] = i
        for j in range(0, 256, 4):
            v15 = a1[j + 2]
            v8 = (a3[v11] + v15 + v7) & 0xff
            v12 = v11 + 1
            if v12 == a2:
                v12 = 0
            a1[j + 2] = a1[v8 + 2]
            a1[v8 + 2] = v15

            v16 = a1[j + 3]
            v9 = (a3[v12] + v16 + v8) & 0xff
            v13 = v12 + 1
            if v13 == a2:
                v13 = 0
            a1[j + 3] = a1[v9 + 2]
            a1[v9 + 2] = v16

            v17 = a1[j + 4]
            v10 = (a3[v13] + v17 + v9) & 0xff
            v14 = v13 + 1
            if v14 == a2:
                v14 = 0
            a1[j + 4] = a1[v10 + 2]
            a1[v10 + 2] = v17

            v18 = a1[j + 5]
            v7 = (a3[v14] + v18 + v10) & 0xff
            v11 = v14 + 1
            if v11 == a2:
                v11 = 0
            a1[j + 5] = a1[v7 + 2]
            a1[2 + v7] = v18
        return a1

    def init_base64_table(self, input_byte):
        input_len = len(input_byte)
        output_byte = [0 for i in range(input_len)]
        a1 = self.init_table()
        a2 = 0x53
        a3 = input_byte
        a4 = output_byte
        v51 = a1[0]
        v43 = a1[1]
        v59 = a1[2:]
        count = 0
        i = a2 >> 3
        while i > 0:
            pass
            # 完整算法联系飞机@Lank5735
        v6 = a2 & 7
        if (v6 != 0):
            while v6 > 0:
                 pass
                # 完整算法联系飞机@Lank5735
        return output_byte

    def shield_init(self, device_id, oldsign):
        "version长度7 device_id长度24 旧shield长度10"
        appid_hex_str = self.__app_id.lower()
        appversion_hex_str = self.strT0Hexstr(self.__apk_version_build)
        deviceid_hex_str = self.strT0Hexstr(device_id)
        oldshield_hex_str = oldsign
        # print(oldshield_hex_str)  # dc502860dccd41f99045a6d675ea1e98
        # oldshield_hex_str = "a59dd3058d4c90339cf447aedf477864"
        # oldshield_hex_str = "cf a0 3f 03 67 87 7f 07 36 75 da 2e f7 5e b3 df".replace(" ","")
        calc_str = f"00000001{appid_hex_str}00000002000000070000002400000010{appversion_hex_str}{deviceid_hex_str}{oldshield_hex_str}"
        b_res = self.init_base64_table(bytes.fromhex(calc_str))
        return b_res

    def calc_shield(self, device_id, oldsign):
        output2 = [0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 83, 0, 0, 0, 83]
        output1 = self.shield_init(device_id, oldsign)
        b64_encode_str = output2 + output1
        _res = base64.b64encode(bytearray(b64_encode_str))
        return "XY" + _res.decode("utf-8")


def get_shield_7_06(url, xycommonparams, xyplatforminfo, device_info,  data={}):
    parsed = parse.urlparse(url)
    path = parsed.path
    args = parse.parse_qs(parsed.query, keep_blank_values=True)
    params = dict([(k, v[0]) for k, v in args.items()])
    s = AndroidShield()
    try:
        main_hmac = s.get_ter_str(device_info=device_info, xycommonparams=xycommonparams, xyplatforminfo=xyplatforminfo)
    except:
        rand_str = ''.join(random.sample(string.ascii_uppercase, 24))
        main_hmac = "mXtwWNLkY+tzqBSiMdzc87zwuffL+CE9tdMP2mLFEcJI7HE/4Ak6h817k6VPj6iA2yy7RObJhA0pS9HqoxQfoavlomg9AGSA8vg4OEJ/" + rand_str
    # 生成签名
    shield = s.getSign(
        main_hmac=main_hmac,
        device_id=device_info['deviceId'],
        path=path,
        params=parse.urlencode(params),
        xy_common_params=xycommonparams,
        xy_platform_info=xyplatforminfo,
        data=parse.urlencode(data),
    )
    return shield


if __name__ == '__main__':
    qq = AndroidShield()
    zz = qq.getSign(path="/api/sns/v1/note/feed",
                    params="note_id=611e3446000000002103e745&page=1&has_ads_tag=false&num=5&fetch_mode=1&source=explore&ads_track_id=fm_fwfm_ol_30day%4028y6fh5sgzc4a916hbx23",
                    device_id="879246a0-b385-3400-b59d-76f63fa5baff",
                    xy_common_params="fid=162925699210bf9c0d3447ec1a57edbfc9b9f44f9625&device_fingerprint=20210810140918508c2ccd6e986960ec8432e9c2edd16b01265a5749ac3489&device_fingerprint1=20210810140918508c2ccd6e986960ec8432e9c2edd16b01265a5749ac3489&launch_id=1629451556&tz=Asia%2FShanghai&channel=YingYongBao&versionName=7.6.0&deviceId=879246a0-b385-3400-b59d-76f63fa5baff&platform=android&sid=session.1629264087421090169948&identifier_flag=4&t=1629451595&project_id=ECFAAF&build=7060188&x_trace_page_current=explore_feed&lang=zh-Hans&app_id=ECFAAF01&uis=light",
                    xy_platform_info="platform=android&build=7060188&deviceId=879246a0-b385-3400-b59d-76f63fa5baff",
                    main_hmac="XaiJJLGJna6H3GiOhNxbfAOLFS9Th/7LY7eTl5R9PBsgcyVKtyidl2bSA9ql4RlL5IdgzuWC9XOJQJoIDs5ANDDYtBwFXmO8nzWyO4oIoH2NeTDYmL6YcIQMDTT/di8f")
    print(zz)