监控商品库存方法之二——抓包&逆向

https://m.laiyifen.com/my/login?loginFrom=%2Fmy%2Findex

https://openapi.laiyifen.com/community-app-api/v1/community/product/secret?times=1677133674158&platform=2&companyId=30&platformId=3&deviceId=d02e61f8-4563-4def-a4c2-e26256314e56&channelSkuUnitId=115812******

GET\n/community-app-api/v1/community/product/secret\nchannelSkuUnitId=115812121*****&companyId=30&deviceId=d02e61f8-4563-4def-a4c2-e26256314e56&platform=2&platformId=3&times=1677135596412\nx-co-client:70923143D9C04D1390617B676BF4ACA7\nx-co-timestamp:1677135596663

import requests,json,time
from urllib import parse
from hashlib import sha1
import base64
import hmac

p_token= '' #push+
skuid = ["11581212********","11581212*********","1158121********"]#DD，YH，HM

def hash_hmac(key, code, sha1):
    hmac_code = hmac.new(key.encode(), code.encode(), sha1).digest()
    return base64.b64encode(hmac_code).decode()
n = 1 #循环次数
DDok = 0 #有货次数
HMok = 0 #有货次数
YHok = 0 #有货次数
a = input('输入 延时时间(s) 回车后继续:')
if a == "":
    延时时间 = 3  # 延时时间
    print("未设置，按默认延时时间(s):"+str(延时时间))
else:
    延时时间 = int(a)  # 延时时间
    print("延时时间(s):" + str(延时时间))
print('输入欲监控的商品[DD，YH，HM]对应位置为1，不监控为0，以.隔开。如1.0.1 表示监控DD，HM')
a = input('输入数字回车后继续:')
if a == "":
    执行 = [1, 1, 1]
    print("未设置，按默认监控所有")
else:
    # 将输入每个数以.隔开做成数组
    执行 = [int(k) for k in a.split(".")]

while True:
    t = int(time.time()*1000)#13时间戳
    t = str(t)
    #print(t)
    i = 0
    for i in range(3):
        #x-co-sign明文
        k = f'GET\n/community-app-api/v1/community/product/secret\nchannelSkuUnitId={skuid[i]}&companyId=30&deviceId=9f05fde7-7a72-4614-b6cc-bb1ad6f39edd&platform=2&platformId=3&times={t}\nx-co-client:70923143D9C04D1390617B676BF4ACA7\nx-co-timestamp:{t}'
        #print(k)
        x_co_sign = hash_hmac('SECRETKEY-9385D4D1F8864252AD2D19', k, sha1)#HMACSHA1加密
        #print(x_co_sign)
        url = f"https://openapi.laiyifen.com/community-app-api/v1/community/product/secret?times={t}&platform=2&companyId=30&platformId=3&deviceId=9f05fde7-7a72-4614-b6cc-bb1ad6f39edd&channelSkuUnitId={skuid[i]}"
        headers = {
            "Host": "openapi.laiyifen.com",
            "Connection": "keep-alive",
            "Pragma": "no-cache",
            "Cache-Control": "no-cache",
            "X-Requested-With": "XMLHttpRequest",
            "x-co-client": "70923143D9C04D1390617B676BF4ACA7",
            "User-Agent": '''Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36''',
            "clientInfo": "%7B%22platformId%22:2,%22clientSystem%22:%22H5%22%7D",
            "Accept": "application/json",
            "x-co-sign": x_co_sign,
            "x-co-timestamp": t,
            "ut": "4bc91c70bcc9f84bceb2e95f7970bcc451",
            "Origin": "http://m.laiyifen.com",
            "Sec-Fetch-Site": "cross-site",
            "Sec-Fetch-Mode": "cors",
            "Sec-Fetch-Dest": "empty",
            "Referer": "https://m.laiyifen.com/",
            "Accept-Encoding": "gzip, deflate, br",
            "Accept-Language": "zh-CN,zh;q=0.9"}
        try:  
            if 执行[i] == 1:
                response = requests.get(url=url, headers=headers)
            #print(response.text)
                if response.text.find("stockStatus") != -1:
                    aaa = json.loads(response.text)
                    #print(aaa['data']['productName'],aaa['data']['promotionPrice'],aaa['data']['stockStatus'])
                    if aaa['data']['stockStatus'] != "0":
                        #print(aaa['data']['productName']+"————有货")
                        if i == 0:
                            DDok = DDok + 1
                            print("DD 有货")
                            if DDok <= 3:
                                t = str(time.time())
                                content = parse.quote_plus(t) 
                                title = parse.quote_plus('DD 有货') 
                                requests.get(f'http://www.pushplus.plus/send?token={p_token}&title={title}&content={content}')
                        elif i == 1:
                            YHok = YHok + 1
                            print("YH 有货")
                            if YHok <= 3:
                                t = str(time.time())
                                content = parse.quote_plus(t) 
                                title = parse.quote_plus('YH 有货') 
                                requests.get(f'http://www.pushplus.plus/send?token={p_token}&title={title}&content={content}')
                        else:
                            HMok = HMok + 1
                            print("HM 有货")
                            if HMok <= 3:
                                t = str(time.time())
                                content = parse.quote_plus(t) 
                                title = parse.quote_plus('HM 有货') 
                                requests.get(f'http://www.pushplus.plus/send?token={p_token}&title={title}&content={content}')
                    else:
                        #print(aaa['data']['productName'])
                        if i == 0:
                            print("DD 已售罄")
                        elif i == 1:
                            print("YH 已售罄")
                        else:
                            print("HM 已售罄")
                else:
                    print(response.text,11111)
        except Exception:  
            print('异常，未获取到数据')
        i = i + 1
        time.sleep(0.3)#每次运行3个商品间隔0.3秒
    print(f"已运行{n}次")
    if DDok+HMok+YHok >= 6:  # 总共提醒了6次就结束循环
        print("已监控到6次，结束运行")
        break
    n = n + 1
    time.sleep(延时时间)

input('输入回车后继续:')