免登陆刷新CDN 缓存

一直使用又拍的 CDN，非常好用，但是 CDN 这个东西我总结就一句话，好也是缓存，败也是缓存，众所周知，缓存是 CDN 的核心，通过缓存可以加速文件的访问，但是同时也带来一些问题，比如一个文件你已经更新了，但是 CDN 缓存还没有过期，这个时候就需要把 CDN 的缓存删除掉，强制 CDN 回源站获取最新文件。

但是，我不想每次都打开又拍的官网去点击刷新，然后在文本框输入 URL 去刷新，操作步骤太多了，于是，我写了个脚本，只需要在终端执行 pure_cdn $url 即可刷新，如下

purge_cdn https://www.awen.me/post/52417.html
{
    "result":[
        {
            "code":1,
            "status":"\u5237\u65b0\u6210\u529f",
            "task_id":"11100087ce3b6326c3ab121556281789",
            "url":"https://www.awen.me/post/52417.html"
        }
    ]
}

具体实现也很简单，就是通过模拟登录又拍云的控制台，然后调用他们的缓存刷新接口实现刷新。

#-*-coding:utf-8-*-
import requests
import json
import sys  


def login(username,password):
    url = "https://console.upyun.com/accounts/signin/"

    payload = {"username":username,"password":password}
    headers = {
        'Accept': "application/json, text/plain, */*",
        'Accept-Encoding': "gzip, deflate, br",
        'Accept-Language': "zh-CN,zh;q=0.9,en;q=0.8",
        'Cache-Control': "no-cache",
        'Connection': "keep-alive",
        'Content-Length': "56",
        'Content-Type': "application/json",
        'DNT': "1",
        'Host': "console.upyun.com",
        'Origin': "https://console.upyun.com",
        'Pragma': "no-cache",
        'Referer': "https://console.upyun.com/login/",
        'User-Agent': "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36",
        'cache-control': "no-cache",
        'Postman-Token': "2d9bd080-b549-4c41-89ce-0b011f344a3f"
    }

    response = requests.request("POST", url, data=json.dumps(payload), headers=headers)

    if response.status_code == 200:
        return response.cookies

def purge_cdn(cookie,purge_url):
    url = "https://console.upyun.com/api/purge/"

    payload = {"urls":purge_url}
    headers = {
        'Accept': "application/json, text/plain, */*",
        'Accept-Encoding': "gzip, deflate, br",
        'Accept-Language': "zh-CN,zh;q=0.9,en;q=0.8",
        'Cache-Control': "no-cache",
        'Connection': "keep-alive",
        'Content-Length': "28",
        'Content-Type': "application/json",
        'DNT': "1",
        'Host': "console.upyun.com",
        'Origin': "https://console.upyun.com",
        'Pragma': "no-cache",
        'Referer': "https://console.upyun.com/purge/purge_url/",
        'User-Agent': "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36",
        'cache-control': "no-cache",
        }

    response = requests_session.post(url, data=json.dumps(payload), headers=headers,cookies=cookie)

    json_format = json.dumps(response.json()["data"], sort_keys=True, indent=4, separators=(',', ':'))
    print(json_format)


if __name__ == '__main__':
    username = "" #用户名
    password = "" # 密码

    cookie = login(username,password)
    requests_session = requests.Session()
    purge_url = sys.argv[1]
    purge_cdn(cookie,purge_url)