签名计算方式

import base64
import hashlib
import string
import time
from random import randint
from typing import Dict

import requests


# 随机字符串
def random_str(long=32):
    base = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
    result = ""
    for i in range(long):
        result += base[randint(0, len(base) - 1)]
    return result


# 封装md5
def md5(text: string):
    hl = hashlib.md5()
    hl.update(text.encode(encoding='utf-8'))
    return hl.hexdigest()


# 字典排序
def k_sort_str(d: Dict[str, str]):
    d_keys = list(d.keys())
    d_keys.sort()

    result = ""
    for k in d_keys:
        result += f"{k}={d[k]}"

        if k != d_keys[-1]:
            result += '&'

    return result


# 演示请求
def demo_request():
    # 定义当前时间戳
    timestamp = str(int(time.time()))

    # 人人商城V5店铺创建的API_KEY
    api_key = 'V5suyZ45GcSyIURW2kPqVpQyQqC0Vx1z'

    # 开放应用的APP_ID
    open_app_id = '100001'

    # 开放应用的APP_API_KEY
    open_app_api_key = 'V9cfFexSl7ka79k7VM2L95XQNNxk7hAP'

    # 请求接口地址
    url = 'https://yousitedomain.com/wap/3/api/apps/openApi/user/index/check-password'

    # 请求参数Dict
    request_params = {
        # 公共请求参数
        'api_key': api_key,
        'timestamp': timestamp,
        'open_app_id': open_app_id,
        'nonce_str': random_str(),

        # 业务参数
        'username': 'admin',
        'password': 'admin',
    }

    # 字典排序后转为字符串
    query_string = k_sort_str(request_params)

    # 计算sign中的base64值
    base64_str = str(timestamp) + api_key + query_string
    base64_encode_str = base64.b64encode(base64_str.encode('utf-8')).decode('utf-8')

    # 计算open_app_sign中的md5值
    md5_encode = md5(timestamp + open_app_api_key + query_string)

    # 计算签名
    request_params.update({
        'sign': md5(query_string + api_key + base64_encode_str + request_params['nonce_str']),
        'open_app_sign': md5(
            '913702023503242914' + open_app_id + query_string + md5_encode + request_params['nonce_str']),
    })

    # 执行请求
    response = requests.request('POST', url, headers={}, data=request_params, files=[])

    # 返回信息
    print(response.text)


# 执行demo
demo_request()