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<?php
/**
* @copyright
* @package Easybook Reloaded - EBR for Joomla! 3.x
* @author Viktor Vogel <admin@kubik-rubik.de>
* @version 3.4.1.1-FREE - 2021-08-29
* @link https://kubik-rubik.de/ebr-easybook-reloaded
*
* @license GNU/GPL
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
namespace EasybookReloaded;
defined('_JEXEC') || die('Restricted access');
use Exception;
use JHtmlSidebar;
use Joomla\CMS\{Language\Text, Component\ComponentHelper, Factory, Uri\Uri, User\UserHelper, Http\HttpFactory};
use Joomla\Registry\Registry;
/**
* Class Helper
*
* @package EasybookReloaded
*
* @since 3.4.0-FREE
* @version 3.4.1.1-FREE
*/
class Helper
{
/**
* @var string EASYBOOK_RELOADED_VERSION
* @since 3.4.0-FREE
* @version 3.4.1.1-FREE
*/
public const EASYBOOK_RELOADED_VERSION = '3.4.1.1-FREE';
/**
* @var string $systemName
* @since 3.4.0-FREE
*/
public static $systemName = 'com_easybookreloaded';
/**
* Adds the sub menu
*
* @param string $viewName
*
* @since 3.4.0-FREE
* @version 3.4.1.0-FREE
*/
public static function addSubmenu(string $viewName): void
{
JHtmlSidebar::addEntry(Text::_('COM_EASYBOOKRELOADED_SUBMENU_ENTRIES'), 'index.php?option=com_easybookreloaded', $viewName === 'easybookreloaded');
JHtmlSidebar::addEntry(Text::_('COM_EASYBOOKRELOADED_SUBMENU_GB'), 'index.php?option=com_easybookreloaded&view=gb', $viewName === 'gb');
JHtmlSidebar::addEntry(Text::_('COM_EASYBOOKRELOADED_SUBMENU_BADWORDFILTER'), 'index.php?option=com_easybookreloaded&view=badwords', $viewName === 'badwords');
}
/**
* Gets the footer for the backend with the current version number
*
* @return string
* @since 3.4.0-FREE
* @version 3.4.1.0-FREE
*/
public static function getFooter(): string
{
return '<div style="text-align: center;"><p>' . Text::sprintf('COM_EASYBOOKRELOADED_VERSION', self::EASYBOOK_RELOADED_VERSION) . '</p></div>';
}
/**
* Returns pro feature note in red colour
*
* @return string
* @since 3.4.0-FREE
* @version 3.4.1.0-FREE
*/
public static function isProFeature(): string
{
return '<span style="color: red; padding-top: 5px; display: inline-block;">PRO FEATURE</span>';
}
/**
* Escapes a string
*
* @param string $string
* @param bool $doubleEncode
*
* @return string
* @since 3.4.1.0-FREE
*/
public static function escapeString(string $string, bool $doubleEncode = false): string
{
return htmlspecialchars($string, ENT_COMPAT, 'UTF-8', $doubleEncode);
}
/**
* Checks whether the donation code was entered and if the code is correct.
* The code is taken from the main Kubik-Rubik Donation Code Check field.
*
* @return string
* @throws Exception
* @since 3.4.0-FREE
* @version 3.4.1.0-FREE
*/
public static function getDonationCodeMessage(): string
{
$donationCode = self::getParams('donation_code', '');
$session = Factory::getSession();
$fieldValueSession = $session->get('field_value', null, 'krdonationcodecheck_footer');
$fieldValueHeadSession = $session->get('field_value_head', null, 'krdonationcodecheck_footer');
$donationCodeSession = $session->get('donation_code', null, 'krdonationcodecheck_footer');
if ($fieldValueSession === 1 && ($donationCode === $donationCodeSession)) {
return '';
} elseif (!empty($fieldValueSession) && !empty($fieldValueHeadSession) && ($donationCode === $donationCodeSession)) {
self::addHeadData($fieldValueHeadSession);
return $fieldValueSession;
}
$fieldValue = '';
$donationCodeCheck = false;
$host = Uri::getInstance()->getHost();
if ($host === 'localhost') {
$fieldValue = '<div class="' . self::randomClassName($session) . '">' . Text::_('KR_DONATION_CODE_CHECK_DEFAULT_LOCALHOST') . '</div>';
if (!empty($donationCode)) {
$fieldValue .= '<div style="text-align: center; border: 1px solid #F2DB82; border-radius: 2px; padding: 5px; background-color: #F7EECA; font-size: 120%; margin: 10px 0;">' . Text::_('KR_DONATION_CODE_CHECK_ERROR_LOCALHOST') . '</div>';
}
} else {
$donationCodeCheck = self::getDonationCodeStatus($host, $donationCode);
if ($donationCodeCheck !== 1) {
$fieldValue = '<div class="' . self::randomClassName($session) . '">' . Text::sprintf('KR_DONATION_CODE_CHECK_DEFAULT', $host) . '</div>';
if ($donationCodeCheck === -1) {
$fieldValue .= '<div style="text-align: center; border: 1px solid #F2DB82; border-radius: 2px; padding: 5px; background-color: #F7EECA; font-size: 120%; margin: 10px 0;">' . Text::_('KR_DONATION_CODE_CHECK_ERROR_SERVER') . '</div>';
}
if ($donationCodeCheck === -2) {
$fieldValue .= '<div style="text-align: center; border: 1px solid #F2DB82; border-radius: 2px; padding: 5px; background-color: #F7EECA; font-size: 120%; margin: 10px 0;">' . Text::_('KR_DONATION_CODE_CHECK_ERROR') . '</div>';
}
}
}
if ($donationCodeCheck === 1) {
$session->set('field_value', 1, 'krdonationcodecheck_footer');
} else {
$session->set('field_value', $fieldValue, 'krdonationcodecheck_footer');
}
$session->set('donation_code', $donationCode, 'krdonationcodecheck_footer');
return $fieldValue;
}
/**
* Gets legacy paths (underscore instead of camelcase) if new paths were not set yet after an update
*
* @param string $path
* @param mixed $default
*
* @return mixed
* @since 3.4.0-FREE
*/
public static function getParams(string $path, $default = null)
{
$params = ComponentHelper::getParams(self::$systemName);
$param = $params->get($path);
if (!is_null($param)) {
return $param;
}
$pathLegacy = strtolower(preg_replace('@(?<!^)[A-Z]@', '_$0', $path));
$paramLegacy = $params->get($pathLegacy);
if (!is_null($paramLegacy)) {
return $paramLegacy;
}
return $default;
}
/**
* Adds the style definition to the head of the HTML page
*
* @staticvar bool $data_loaded
*
* @param string $data
*
* @since 3.4.0-FREE
* @version 3.4.1.0-FREE
*/
private static function addHeadData(string $data): void
{
static $dataLoaded = false;
if (empty($dataLoaded)) {
Factory::getDocument()->addCustomTag($data);
$dataLoaded = true;
}
}
/**
* Creates a valid, random name for the class selector
*
* @param object $session
*
* @return string
* @throws Exception
* @since 3.4.0-FREE
* @version 3.4.1.0-FREE
*/
private static function randomClassName(object $session): string
{
$characters = range('a', 'z');
$className = $characters[random_int(0, count($characters) - 1)];
$classNameLength = random_int(6, 12);
$className .= UserHelper::genRandomPassword($classNameLength);
$headData = '<style>div.' . $className . '{text-align: center; border: 1px solid #DD87A2; border-radius: 2px; padding: 5px; background-color: #F9CAD9; font-size: 120%; margin: 10px 0;}</style>';
self::addHeadData($headData);
$session->set('field_value_head', $headData, 'krdonationcodecheck_footer');
return $className;
}
/**
* Gets the status of the entered donation code from the donation code script
*
* @param string $host
* @param string $donationCode
*
* @return int
* @since 3.4.0-FREE
* @version 3.4.1.0-FREE
*/
private static function getDonationCodeStatus(string $host, string $donationCode): int
{
$donationCodeCheck = 0;
if (HttpFactory::getAvailableDriver(new Registry()) === false) {
return -2;
}
if (!empty($host) && !empty($donationCode)) {
// First try it with the main validation server and with HTTPS
$urlCheck = 'https://check.kubik-rubik.de/donationcode/validation.php?key=' . rawurlencode($donationCode) . '&host=' . rawurlencode($host);
try {
$donationCodeRequest = HttpFactory::getHttp()->get($urlCheck);
} catch (Exception $e) {
// Try it with the fall back server and without HTTPS
$urlCheckFallback = 'http://check.kubik-rubik.eu/donationcode/validation.php?key=' . rawurlencode($donationCode) . '&host=' . rawurlencode($host);
try {
$donationCodeRequest = HttpFactory::getHttp()->get($urlCheckFallback);
} catch (Exception $e) {
return -1;
}
}
if (!empty($donationCodeRequest->body)) {
if (preg_match('@(error|access denied)@i', $donationCodeRequest->body)) {
return -1;
}
$donationCodeCheck = (int)$donationCodeRequest->body;
}
}
return $donationCodeCheck;
}
}