File

mod_rest/example/prosody_oauth.py @ 5448:9d542e86e19a

mod_http_oauth2: Allow requesting a subset of scopes on token refresh This enables clients to request access tokens with fewer permissions than the grant they were given, reducing impact of token leak. Clients could e.g. request access tokens with some privileges and immediately revoke them after use, or other strategies.
author Kim Alvefur <zash@zash.se>
date Thu, 11 May 2023 21:40:09 +0200
parent 5269:0e5a37f55440
child 5488:9a4556a13cc7
line wrap: on
line source

from requests_oauthlib import OAuth2Session
import requests


class ProsodyRestSession(OAuth2Session):
    def __init__(
        self, base_url, client_name, client_uri, redirect_uri, *args, **kwargs
    ):
        self.base_url = base_url
        discovery_url = base_url + "/.well-known/oauth-authorization-server"

        meta = requests.get(discovery_url).json()
        reg = requests.post(
            meta["registration_endpoint"],
            json={
                "client_name": client_name,
                "client_uri": client_uri,
                "redirect_uris": [redirect_uri],
            },
        ).json()

        super().__init__(client_id=reg["client_id"], *args, **kwargs)

        self.meta = meta
        self.client_secret = reg["client_secret"]
        self.client_id = reg["client_id"]

    def authorization_url(self, *args, **kwargs):
        return super().authorization_url(
            self.meta["authorization_endpoint"], *args, **kwargs
        )

    def fetch_token(self, *args, **kwargs):
        return super().fetch_token(
            token_url=self.meta["token_endpoint"],
            client_secret=self.client_secret,
            *args,
            **kwargs
        )

    def xmpp(self, json=None, *args, **kwargs):
        return self.post(self.base_url + "/rest", json=json, *args, **kwargs)


if __name__ == "__main__":
    # Example usage

    # from prosody_oauth import ProsodyRestSession
    from getpass import getpass

    p = ProsodyRestSession(
        input("Base URL: "),
        "Prosody mod_rest OAuth 2 example",
        "https://modules.prosody.im/mod_rest",
        "urn:ietf:wg:oauth:2.0:oob",
    )

    print("Open the following URL in a browser and login:")
    print(p.authorization_url()[0])

    p.fetch_token(code=getpass("Paste Authorization code: "))

    print(p.xmpp(json={"disco": True, "to": "jabber.org"}).json())