mutt oauth refresh command

oauth2.py

#!/usr/bin/python3

import json
import argparse
import urllib.request
import urllib.parse


client_id = "1008555780204-finbc9qn6gss7t099l96t1pbqmidv9hm.apps.googleusercontent.com"
client_secret = ""

accounts_url = "https://accounts.google.com/%s"
redirect_uri = "urn:ietf:wg:oauth:2.0:oob"
scope = "https://mail.google.com/"


def refresh_token(token):
    params = {
        "client_id": client_id,
        "client_secret": client_secret,
        "grant_type": "refresh_token",
        "refresh_token": token,
    }
    url = accounts_url % "o/oauth2/token"
    response = json.loads(
        urllib.request.urlopen(
            url, urllib.parse.urlencode(params).encode("utf-8")
        ).read()
    )
    print(response["access_token"])


def generate_oauth2_token():
    params = {
        "client_id": client_id,
        "redirect_uri": redirect_uri,
        "scope": scope,
        "response_type": "code",
    }
    permission_url = "%s?%s" % (
        accounts_url % "o/oauth2/auth",
        urllib.parse.urlencode(params),
    )

    print("To authorize token, visit this url and follow the directions:")
    print(permission_url)
    authorization_code = input("Enter verification code: ")
    params = {
        "client_id": client_id,
        "client_secret": client_secret,
        "grant_type": "authorization_code",
        "code": authorization_code,
        "redirect_uri": redirect_uri,
    }
    url = accounts_url % "o/oauth2/token"
    response = json.loads(
        urllib.request.urlopen(
            url, urllib.parse.urlencode(params).encode("utf-8")
        ).read()
    )
    print("Refresh Token: %s" % response["refresh_token"])
    print("Access Token: %s" % response["access_token"])
    print("Access Token Expiration Seconds: %s" % response["expires_in"])


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("--generate-oauth2-token", action="store_true")
    parser.add_argument("--refresh-token")
    args = parser.parse_args()
    if args.refresh_token:
        refresh_token(args.refresh_token)
    elif args.generate_oauth2_token:
        generate_oauth2_token()


if __name__ == "__main__":
    main()