File util/captcha/CaptchaService.class.php

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<?php
/**
 * @package     Util
 * @subpackage  Captcha
 * @copyright   &copy; 2005-2019 PHPBoost
 * @license     https://www.gnu.org/licenses/gpl-3.0.html GNU/GPL-3.0
 * @author      Kevin MASSY <reidlos@phpboost.com>
 * @version     PHPBoost 5.2 - last update: 2018 11 30
 * @since       PHPBoost 3.0 - 2012 09 04
 * @contributor Julien BRISWALTER <j1.seth@phpboost.com>
*/

class CaptchaService
{
    private $default_factory;

    public function get_default_factory()
    {
        if ($this->default_factory === null)
        {
            $this->default_factory = $this->create_factory($this->get_default_captcha());
        }
        return $this->default_factory;
    }

    public function create_factory($identifier = '')
    {
        $captcha = $this->get_existing_captcha($identifier);
        return CaptchaProvidersService::create_factory($captcha);
    }

    public function get_default_captcha()
    {
        return ContentManagementConfig::load()->get_used_captcha_module();
    }

    public function is_available()
    {
        return $this->get_default_factory()->is_available();
    }

    public function is_valid()
    {
        return $this->get_default_factory()->is_valid();
    }

    public function display()
    {
        return $this->get_default_factory()->display();
    }

    private function get_existing_captcha($captcha)
    {
        if (in_array($captcha, self::get_captchas_identifier()))
        {
            return $captcha;
        }
        else
        {
            return $this->get_default_captcha();
        }
    }

    public function get_captchas_identifier()
    {
        return array_keys(CaptchaProvidersService::get_captchas());
    }

    public function get_available_captchas()
    {
        $available_captchas = array();
        foreach (CaptchaProvidersService::get_captchas() as $id => $provider)
        {
            if ($provider->is_available())
                $available_captchas[$id] = $provider->get_name();
        }
        return $available_captchas;
    }

    /**
     * @param string $id_module
     */
    public function uninstall_captcha($id_module)
    {
        $captchas = $this->get_available_captchas();

        if (in_array($id_module, $captchas))
        {
            if (count($captchas) > 1)
            {
                $default_captcha = $this->get_default_captcha();
                if ($default_captcha === $id_module)
                    return LangLoader::get_message('captcha.is_default', 'status-messages-common');
            }
            else
                return LangLoader::get_message('captcha.last_installed', 'status-messages-common');
        }
    }
}
?>