flask注册成功后如何直接跳转到认证页面？

Question

1. 现在注册玩之后跳转到登录界面，然后登录后在进行认证，这一步我感觉多余，注册成功后怎么直接跳转到认证页面，并且是当前注册用户登录？相当于注册成功后省略登录认证这一步。

登录:

@auth.route('/login',methods=['GET','POST'])
def login():
    username = request.form.get('username')
    password = request.form.get('password')
    if username:
        user = User.query.filter_by(username=username).first()
        if user is not None and user.verify_passwd(password):
            login_user(user)
            return redirect(url_for('main.index'))
        else:
            error = '用户名不存在或密码错误.'
            return render_template('auth/login.html',error=error)
    return render_template('auth/login.html',success=success)

注册：

@auth.route('/register',methods=['GET','POST'])
def register():
    error = []
    if request.method == 'POST':
        try:
            new_user = User(username=request.form.get('username'),email=request.form.get('email'),password=request.form.get('confirm_password'))
            db.session.add(new_user)
            db.session.commit()
        except:
            error.append('用户名或邮箱已被注册.')
            db.session.rollback()
        else:
            token = new_user.tokens()
            send_email(new_user.email, 'Confirm Your Account','auth/email/confirm', user=new_user, token=token)
            global success
            success = '一封认证邮件已发至您的邮箱,登陆后完成认证即可访问.'
            return  redirect(url_for('auth.login'))
    return render_template('auth/register.html',error=error)


用户认证：

@auth.route('/confirm/<token>')
@login_required
def confirm(token):
    if current_user.status:
        return redirect(url_for('main.index'))
    if current_user.loosen_tokens(token):
        db.session.commit()
        return redirect(url_for('main.index'))