nginx secure_link下载防盗链

location ~ \.mp4$ {
accesskey on;
accesskey_hashmethod md5;
accesskey_arg "key";
accesskey_signature "password$scheme://$server_addr:$server_port$uri";
secure_link $arg_st,$arg_e;
secure_link_md5 password$scheme://$server_addr:$server_port$uri$arg_e;
if ($secure_link = "") {return 403;}
if ($secure_link = "0") {return 403;}
mp4;
}

url生成

#!/usr/bin/env python
# coding:utf8

import base64
import hashlib
import time
import datetime

future = datetime.datetime.now() + datetime.timedelta(hours=3)
print future
secret='password'
url = "/securedir/file.txt"
timestamp = str(time.mktime(future.timetuple()))
print timestamp
security = base64.b64encode(hashlib.md5(secret).digest()).replace('+', '-').replace('/', '_').replace("=", "")
print base64.b64encode(hashlib.md5(secret).digest())
print security
data = str(url) + "?st=" + str(security) + "&e=" + str(timestamp)

print data