Files
gander/web_server/blueprints/oauth.py

60 lines
2.1 KiB
Python

from authlib.integrations.flask_client import OAuth, OAuthError
from flask import Blueprint, url_for, jsonify, session
from utils.user_utils import get_session_info_email
oauth_bp = Blueprint("oauth", __name__)
def init_oauth(app):
oauth = OAuth(app)
google = oauth.register(
'google',
client_id=app.config['GOOGLE_CLIENT_ID'],
client_secret=app.config['GOOGLE_CLIENT_SECRET'],
authorize_url='https://accounts.google.com/o/oauth2/auth',
authorize_params=None,
access_token_url='https://accounts.google.com/o/oauth2/token',
access_token_params=None,
refresh_token_url=None,
redirect_uri=url_for('google.google_auth', _external=True),
scope='openid profile email',
)
@oauth_bp.route('/login/google')
def login_google():
"""
Redirects to Google's OAuth authorization page
"""
return google.authorize_redirect(url_for('google.google_auth', _external=True))
@oauth_bp.route('/google_auth')
def google_auth():
try:
token = google.authorize_access_token()
user = google.parse_id_token(token)
# check if email exists else create a database entry
user_email = user.get("email")
user_data = get_session_info_email(user_email)
session.clear()
session["username"] = user_data["username"]
session["user_id"] = user_data["user_id"]
return jsonify({
'message': 'User authenticated successfully',
})
except OAuthError as e:
# Handle OAuth errors like failed authentication or invalid token
return jsonify({
'message': 'Authentication failed',
'error': str(e)
}), 400
except Exception as e:
# Handle other unexpected errors
return jsonify({
'message': 'An unexpected error occurred',
'error': str(e)
}), 500