Aras Innovator Claude Agent

""" Authentication module for API access Created by D. Theoden Date: June 12, 2025 """ import requests from requests_oauthlib import OAuth2Session from oauthlib.oauth2 import LegacyApplicationClient import os from dotenv import load_dotenv from .config import URL, USERNAME, PASSWORD, DATABASE # Load environment variables load_dotenv() def get_bearer_token(): """Get bearer token using OAuth 2.0 Resource Owner Password Credentials Grant.""" try: # Create OAuth2 session with Resource Owner Password Credentials Grant client = LegacyApplicationClient(client_id='IOMApp') oauth = OAuth2Session(client=client) # Token endpoint for Aras token_url = f"{URL}/oauthserver/connect/token" # Get token using username/password (with database parameter) token = oauth.fetch_token( token_url=token_url, username=USERNAME, password=PASSWORD, client_id='IOMApp', scope='openid Innovator offline_access', database=DATABASE # Aras requires database parameter ) return token['access_token'] except Exception as err: import sys print(f"Error in get_bearer_token: {err}", file=sys.stderr) # Fallback to manual OAuth if the library approach fails return get_bearer_token_manual() def get_bearer_token_manual(): """Fallback manual OAuth 2.0 implementation.""" try: token_url = f"{URL}/oauthserver/connect/token" # Prepare OAuth 2.0 token request with database parameter token_data = { "grant_type": "password", "username": USERNAME, "password": PASSWORD, "database": DATABASE, # Aras requires this "scope": "openid Innovator offline_access", "client_id": "IOMApp" } # Make token request token_response = requests.post( token_url, data=token_data, headers={ 'Content-Type': 'application/x-www-form-urlencoded' } ) token_response.raise_for_status() token_json = token_response.json() return token_json["access_token"] except requests.exceptions.HTTPError as http_err: import sys print(f"HTTP error in get_bearer_token_manual: {http_err}", file=sys.stderr) print(f"Response content: {http_err.response.text}", file=sys.stderr) raise http_err except Exception as err: import sys print(f"Error in get_bearer_token_manual: {err}", file=sys.stderr) raise err