Recaptcha V3 in auth.login form

[Jacinto Parga]

I have tried recaptcha v3 width auth login form but something is wrong. It seems to break the basic  auth validation methods.

Controller

def user():

    form = auth()

    my_captcha_element = TR(INPUT(_name='recaptcharesponse', value='', _type='hidden', _id='g-recaptcha-response'))

    form[0].insert(-1, my_captcha_element)

    if form.accepts(request.vars, session):

    #Comprobamos el CAPTCHA

        token = str(form.vars.recaptcharesponse)
        action = 'login'

        remoteip = str(request.env.remote_addr)

        score = 0.5 #elegimos el score que queremos

        capt = comprobar_captcha(token, action, remoteip, score) # A fucntion I've created to evaluate the captcha in server

        if capt == 'Falso':

            response.flash = T('Posible spam please try later.') 

            if session.counter >= 20:

                redirect(URL('errores','error',args='posiblebot'))

    return dict(form=form)

View

{{extend 'layout.html'}}

<div class="row"> 

  <div id="web2py_user_form" class="col-lg-6" style="background-color:white; margin: 0 auto 5px auto; box-shadow: 0 0 5px #a1a1a1; border-radius:5px;padding: 20px">

    <h2>

      {{=T('Sign Up') if request.args(0) == 'register' else T('Log In') if request.args(0) == 'login' else T(request.args(0).replace('_',' ').title())}}

    </h2>

    {{=form}}

    {{if request.args(0)=='login' and not 'register' in auth.settings.actions_disabled:}}

    <a href="{{=URL('user/register')}}">{{=T('Register')}}</a>

    <br/>

    {{pass}}

    {{if request.args(0)=='login' and not 'retrieve_password' in auth.settings.actions_disabled:}}

    <a href="{{=URL('user/retrieve_password')}}">{{=T('Lost your password?')}}</a>

    {{pass}}

    {{if request.args(0)=='register':}}

    <a href="{{=URL('user/login')}}">{{=T('Login')}}</a>

    {{pass}}

  </div>

</div>

{{block page_js}}

<script>

    jQuery("#web2py_user_form input:visible:enabled:first").focus();

{{if request.args(0)=='register':}}

    web2py_validate_entropy(jQuery('#auth_user_password'),100);

{{elif request.args(0)=='change_password':}}

    web2py_validate_entropy(jQuery('#no_table_new_password'),100);

{{pass}}

</script>

{{end page_js}}

<script>

 grecaptcha.ready(function() {

      grecaptcha.execute('xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx', {action:'login'}).then(function(token) {

          document.getElementById('g-recaptcha-response').value = token;

      });

  });

  </script>