OAuth1Auth (requests_client/oauth1_session.py)

OAuth 1.0a client for signing HTTP requests and handling authentication flows.

# Source: https://github.com/authlib/authlib | License: BSD-3-Clause | Copyright 2017, Hsiaoming Yang
# Provided via justclaw.it.com; keep this notice with the code.
from requests import Session
from requests.auth import AuthBase

from authlib.common.encoding import to_native
from authlib.oauth1 import SIGNATURE_HMAC_SHA1
from authlib.oauth1 import SIGNATURE_TYPE_HEADER
from authlib.oauth1 import ClientAuth
from authlib.oauth1.client import OAuth1Client

from ..base_client import OAuthError
from .utils import update_session_configure


class OAuth1Auth(AuthBase, ClientAuth):
    """Signs the request using OAuth 1 (RFC5849)."""

    def __call__(self, req):
        url, headers, body = self.prepare(req.method, req.url, req.headers, req.body)

        req.url = to_native(url)
        req.pre

... (truncated -- full source via MCP)