Python 对接卡密验证

import requests
import hashlib
import time
import threading

BASE_URL = "https://www.keyt.cn/kami/你的用户名/check.php"
APP_NAME = "你的应用名"
SIGN_KEY = "你的签名密钥"   # 从后台「修改签名密钥」获取
TIMESTAMP_MAX_DIFF = 120

def md5(data):
    return hashlib.md5(data.encode()).hexdigest()

def verify_response(raw):
    """校验签名 + 时间戳，返回业务内容或 None"""
    if "|sign=" not in raw:
        return None
    body, sign = raw.split("|sign=", 1)
    local_sign = md5(body + SIGN_KEY)
    if local_sign != sign:
        return None
    last_pipe = body.rfind("|")
    if last_pipe == -1:
        return None
    ts_str = body[last_pipe + 1:]
    if not ts_str.isdigit():
        return None
    ts = int(ts_str)
    now_ts = int(time.time())
    if abs(now_ts - ts) > TIMESTAMP_MAX_DIFF:
        return None
    return body[:last_pipe]

def get_card_switch():
    for _ in range(3):
        url = f"{BASE_URL}?act=get_switch&app={APP_NAME}&t={int(time.time())}"
        try:
            resp = requests.get(url, timeout=5)
            biz = verify_response(resp.text)
            if biz and "CARD_ON" in biz:
                return "CARD_ON"
            elif biz and "CARD_OFF" in biz:
                return "CARD_OFF"
        except:
            pass
        time.sleep(0.5)
    return "CARD_ON"

def verify_card(card, mac):
    url = f"{BASE_URL}?card={card}&mac={mac}&app={APP_NAME}&heart=1&t={int(time.time())}"
    resp = requests.get(url, timeout=5)
    biz = verify_response(resp.text)
    return biz

def heartbeat(card, mac):
    fail_cnt = 0
    while True:
        biz = verify_card(card, mac)
        if biz and biz.startswith("ok|"):
            fail_cnt = 0
        else:
            fail_cnt += 1
            if fail_cnt >= 5:
                print("心跳失败超过5次，退出")
                break
        time.sleep(50)

def main():
    mac = "你的机器码"
    card_switch = get_card_switch()
    if card_switch == "CARD_OFF":
        print("验证已关闭，直接进入")
        threading.Thread(target=heartbeat, args=("88888888", mac)).start()
        # 你的主逻辑
        return
    card = input("请输入卡密: ")
    biz = verify_card(card, mac)
    if biz and biz.startswith("ok|"):
        print("验证成功")
        threading.Thread(target=heartbeat, args=(card, mac)).start()
        # 你的主逻辑
    else:
        print("验证失败")

if __name__ == "__main__":
    main()