如何在python中生成一个nginx安全链接

Question

如何使用 python 为 nginx 中的安全链接模块创建链接？ 我正在寻找使用 nginx 来提供具有过期链接的安全文件。 Link to Nginx Wiki

Answer 1

来自 shadfc 答案的代码有效。 对于 Python 3，需要进行一些修改：

import base64
import hashlib
import calendar
import datetime

secret = "itsaSSEEECRET"
url = "/secure/email-from-your-mom.txt"

future = datetime.datetime.utcnow() + datetime.timedelta(minutes=5)
expiry = calendar.timegm(future.timetuple())

secure_link = f"{secret}{url}{expiry}".encode('utf-8')

hash = hashlib.md5(secure_link).digest()
base64_hash = base64.urlsafe_b64encode(hash)
str_hash = base64_hash.decode('utf-8').rstrip('=')

print(f"{url}?st={str_hash}&e={expiry}")

Answer 2

接受的答案不正确，因为它只对密钥进行哈希处理，而不是对密钥、url 和过期时间的组合进行哈希处理。

import base64
import hashlib
import calendar
import datetime

secret = "itsaSSEEECRET"
url = "/secure/email-from-your-mom.txt"

future = datetime.datetime.utcnow() + datetime.timedelta(minutes=5)
expiry = calendar.timegm(future.timetuple())

secure_link = "{key}{url}{expiry}".format(key=secret,
                                          url=url,
                                          expiry=expiry)
hash = hashlib.md5(secure_link).digest()
encoded_hash = base64.urlsafe_b64encode(hash).rstrip('=')

print url + "?st=" + encoded_hash + "&e=" + str(expiry)

一个nginx.conf的对应部分

location /secure {

    # set connection secure link
    secure_link $arg_st,$arg_e;
    secure_link_md5 "itsaSSEEECRET$uri$secure_link_expires";

    # bad hash
    if ($secure_link = "") {
        return 403;
    }

    # link expired
    if ($secure_link = "0") {
        return 410;
    }

    # do something useful here
}

Answer 3

import base64
import hashlib

future = datetime.datetime.now() + datetime.timedelta(minutes=5)
url = "/securedir/file.txt"
timestamp = str(time.mktime(future.timetuple()))
security = base64.b64encode(hashlib.md5( secret ).digest()).replace('+', '-').replace('/', '_').replace("=", "")
data = str(url) + "?st=" + str(security) + "&e=" + str(timestamp)

data 是您生成的表单网址：

/securedir/file.txt?st=PIrEk4JX5gJPTGmvqJG41g&e=1324527723