Disqus SSO remote_auth generation function

gistfile1.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from hashlib import sha1
from hmac import new
from time import time
import base64
import json

def generate_msg(secret, _id, username, email):
    json_str = json.dumps({
        "id": _id,
        "username": username,
        "email": email
    })
    message = base64.b64encode(json_str.encode("utf-8")).decode("utf-8")
    cur_time = str(int(time()))
    signature = new(
        secret.encode("utf-8"),
        (" ").join([
            message,
            cur_time
        ]).encode("utf-8"),
        sha1
    ).hexdigest()
    return (" ").join([message, signature, cur_time])