/**
* Initialize
*
* @access public
* @return void
*/
public function init()
{
// execute parent method
parent::init();
// declare global
global $wp_version;
// add options
$this->addOption('LinkToMainSite', '1', 'checkbox', __('Display link to main site', 'kocuj-sitemap'));
if (version_compare($wp_version, '3.0.0', '>=')) {
$this->addOption('DisplayMenus', '1', 'checkbox', __('Display menus', 'kocuj-sitemap'));
}
$this->addOption('DisplayPages', '1', 'checkbox', __('Display pages', 'kocuj-sitemap'));
$this->addOption('DisplayPosts', '1', 'checkbox', __('Display posts', 'kocuj-sitemap'));
if (version_compare($wp_version, '3.0.0', '>=')) {
$def = 'MGP';
} else {
$def = 'GP';
}
$this->addOption('Order', $def, 'string', __('Order of elements in the sitemap', 'kocuj-sitemap'));
if (version_compare($wp_version, '3.0.0', '>=')) {
$this->addOption('Menus', '', 'numeric', __('Menus list', 'kocuj-sitemap'), true, array('allowreorganize' => true, 'addonlastnotempty' => true, 'removeonempty' => true, 'addbutton' => false));
}
$this->addOption('UseHTML5', '0', 'checkbox', __('Use HTML 5 `nav` tag', 'kocuj-sitemap'));
$this->addOption('PoweredBy', '0', 'checkbox', __('Display `powered by` information below sitemap', 'kocuj-sitemap'));
// set option name
$this->optionName = 'kocujsitemap_options';
// add multi-language plugins options
$multiLangData = KocujSitemapPluginMultiLang::getInstance()->getData();
if (!empty($multiLangData)) {
foreach ($multiLangData as $data) {
$this->addOption($data['admin_id'], '1', 'checkbox', $data['admin_label']);
}
}
}
/**
* Get singleton instance
*
* @access public
* @return object Singleton instance
*/
public static function getInstance()
{
// optionally create new instance
if (!self::$instance) {
self::$instance = new KocujSitemapPluginMultiLang();
}
// exit
return self::$instance;
}
/**
* Get sitemap to display
*
* @access public
* @param string $title Sitemap title - default: empty
* @param string $class Sitemap class - default: empty
* @return string Sitemap to display
*/
public function getSitemap($title = '', $class = '')
{
// declare global
global $classKocujSitemapAdmin;
// get arguments
if (empty($title)) {
KocujSitemapPluginMultiLang::getInstance()->beforeGetBlogName();
$title = apply_filters('kocujsitemap_defaulttitle', KocujSitemapPluginMultiLang::getInstance()->getTranslatedBlogName(), get_locale());
KocujSitemapPluginMultiLang::getInstance()->afterGetBlogName();
}
if (empty($class)) {
$class = apply_filters('kocujsitemap_defaultclass', '');
}
$title = apply_filters('kocujsitemap_linktitle', $title, 0, 'home', get_locale());
// initialize
$output = '';
// load cache
if (!KocujSitemapPluginCache::getInstance()->loadCache($title, $output, get_locale())) {
KocujSitemapPluginCache::getInstance()->createCache();
if (!KocujSitemapPluginCache::getInstance()->loadCache($title, $output, get_locale())) {
return '';
}
}
// optionally set footer
$footer = '';
$value = $classKocujSitemapAdmin->getConfigClass()->getOption('PoweredBy');
if (!empty($value)) {
$footer = '<div class="kocujsitemapfooter">' . sprintf(__('Powered by %s plugin', 'kocuj-sitemap'), '<a href="http://kocujsitemap.wpplugin.kocuj.pl/" rel="external">Kocuj Sitemap</a>') . '</div>';
}
// show begin and end
if (!empty($output)) {
$classText = '';
if (!empty($class)) {
$classText = ' ' . $class;
}
$html5 = $classKocujSitemapAdmin->getConfigClass()->getOption('UseHTML5');
if (!empty($html5)) {
$tagBegin = KocujSitemapPluginHTML5::getInstance()->getTagNavBegin('', 'kocujsitemap' . $classText);
$tagEnd = KocujSitemapPluginHTML5::getInstance()->getTagNavEnd();
} else {
$tagBegin = '<div class="kocujsitemap' . $classText . '">';
$tagEnd = '</div>';
}
$output = $tagBegin . $output . $footer . $tagEnd;
}
// exit
return $output;
}
/**
* Create cache
*
* @access public
* @return bool Status - true or false
*/
public function createCache()
{
// remove all cache files
$cacheDir = $this->getCacheDirectory();
$dir = opendir($cacheDir);
while ($item = readdir($dir)) {
if (is_file($cacheDir . '/' . $item) && substr($item, strlen($item) - 4, 4) == '.dat') {
@unlink($cacheDir . '/' . $item);
}
}
// get all languages
$langs = KocujSitemapPluginMultiLang::getInstance()->getLanguages();
// create cached sitemap for each language
$this->cacheContent = array();
if (!empty($langs)) {
foreach ($langs as $lang) {
// create sitemap
$array = KocujSitemapPluginSitemap::getInstance()->createSitemap($lang);
// set cache content in memory
$this->cacheContent[$lang] = $array;
// check if cache directory is writable
if (!$this->checkWritable()) {
return false;
}
// set filename
$filename = $this->getCacheFilename($lang);
if (empty($filename)) {
return false;
}
// save cache
@unlink($filename);
$file = @fopen($filename, 'w');
@flock($file, LOCK_EX);
if (empty($file)) {
@flock($file, LOCK_UN);
@fclose($file);
return false;
}
if (fwrite($file, maybe_serialize($array)) === false) {
@flock($file, LOCK_UN);
@fclose($file);
return false;
}
@flock($file, LOCK_UN);
if (@fclose($file) === false) {
return false;
}
}
}
// exit
return true;
}
