materio-base-d7/materio_user.pages.inc

<?php 

function materio_user_registerblock(){
  $return = array();
  $block = block_load('materio_user','user_createaccount');
  $return['block'] = drupal_render(_block_get_renderable_array(_block_render_blocks(array($block))));
  drupal_json_output($return);
}

function materio_user_loginandregisterblock(){
  $return = array();
  $block = block_load('materio_user','user_register');
  $return['block'] = drupal_render(_block_get_renderable_array(_block_render_blocks(array($block))));
  drupal_json_output($return);
}

function materio_user_register_submit(){
  $return = array();
  $return['POST'] = $_POST;

  $form_state = array( "values"=>$_POST);
  drupal_form_submit($_POST['form_id'], $form_state);

  // $return['form_state'] = $form_state;

  $return['errors'] = form_get_errors();
  if($return['errors']){
    unset ($_SESSION['messages']['error']);
  }else{
    $messages = drupal_get_messages('status');
    // $return['messages'] = $messages; 
    drupal_set_message(t("Congratulations, you juste created your free materiO' account, welcome !"), 'status');
    foreach ($messages['status'] as $msg) {
      drupal_set_message($msg, 'status');
    }
  }
  // after registration user is automaticly logged in, thank's to login tobogan module
  
  drupal_json_output($return);
}

function materio_user_login_submit(){
  $return = array();
  $return['POST'] = $_POST;

  $form_state = array("values"=>$_POST);
  drupal_form_submit($_POST['form_id'], $form_state);
 
  $return['errors'] = form_get_errors();
  if($return['errors'])
    unset ($_SESSION['messages']['error']);

  // if user-login form succed we retreive the user uid on $form_state, then we can effectively loggin the user
  if($uid = $form_state['uid'])
    user_login_submit(array(), $form_state);

  drupal_json_output($return);
}