views.py 文件源码

def oauth_callback(provider):
    if not current_user.is_anonymous:
        return redirect(url_for('index'))
    oauth = OAuthSignIn.get_provider(provider)
    xd_id, name, email = oauth.callback()
    if xd_id is None:
        flash('Authentication failed.')
        return redirect(url_for('index'))
    user = User.query.filter_by(xd_id=xd_id).first()
    if not user: # Create, add and login new user. Redirect to /register
        user = User(xd_id=xd_id, name=name, email=email)
        db.session.add(user)
        db.session.commit()
        login_user(user, True)
        return redirect(url_for('dash')) # previously register
    else: # Login new user. Redirect to /
        login_user(user, True)
        return redirect(url_for('index'))