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<?php
/******************************************************************************
*
* Subrion - open source content management system
* Copyright (C) 2017 Intelliants, LLC <https://intelliants.com>
*
* This file is part of Subrion.
*
* Subrion 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.
*
* Subrion 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 Subrion. If not, see <http://www.gnu.org/licenses/>.
*
*
* @link https://subrion.org/
*
******************************************************************************/
class iaSitemap extends abstractCore
{
const FILENAME = 'sitemap.xml';
const GETTER_METHOD_NAME = 'getSitemapEntries';
const LINKS_SET_CORE = 1;
const LINKS_SET_PACKAGES = 2;
const LINKS_SET_PLUGINS = 3;
protected $_xmlWrapper = '<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:xhtml="http://www.w3.org/1999/xhtml">:content:</urlset>
';
protected $_xmlEntry = '<url><loc>:url</loc>:langs</url>';
protected $_xmlLangEntry = '<xhtml:link rel="alternate" hreflang=":lang" href=":url" />';
protected $_multilingual = false;
public function init()
{
parent::init();
$this->_multilingual = ($this->iaCore->get('language_switch') && count($this->iaCore->languages) > 1);
}
/**
* Writes the sitemap file
*
* @return bool
*/
public function generate()
{
set_time_limit(600);
$fh = fopen(IA_TMP . self::FILENAME, 'w');
if (!$fh) {
return false;
}
// write file header
$marker = ':content:';
$offset = stripos($this->_xmlWrapper, $marker);
$content = substr($this->_xmlWrapper, 0, $offset);
fwrite($fh, $content);
$sets = [self::LINKS_SET_CORE, self::LINKS_SET_PACKAGES, self::LINKS_SET_PLUGINS]; // priority
foreach ($sets as $set) {
$urls = $this->_getUrls($set);
foreach ($urls as $i => &$url) {
$this->_validate($url);
}
if ($this->_multilingual) {
$this->_fixLanguageCode($urls);
}
$xml = $this->_xmlify($urls);
fwrite($fh, $xml);
}
// write XML footer
fwrite($fh, substr($this->_xmlWrapper, $offset + strlen($marker)));
fclose($fh);
return true;
}
/**
* Returns array of sitemap entries
*
* @return array
*/
protected function _getUrls($setType)
{
$iaItem = $this->iaCore->factory('item');
$result = [];
switch ($setType) {
case self::LINKS_SET_CORE:
$modulesList = $this->iaDb->keyvalue(['name', 'type'], iaDb::convertIds(iaCore::STATUS_ACTIVE, 'status'), $iaItem::getModulesTable());
$homePageName = $this->iaCore->get('home_page');
$stmt = '`nofollow` = 0 AND `service` = 0 AND `status` = :status AND `passw` = :password ORDER BY `order`';
$this->iaDb->bind($stmt, ['status' => iaCore::STATUS_ACTIVE, 'password' => '']);
$pages = $this->iaDb->all(['name', 'alias', 'custom_url', 'module'], $stmt, null, null, 'pages');
foreach ($pages as $page) {
if (empty($page['module']) || isset($modulesList[$page['module']])) {
switch (true) {
case ($page['name'] == $homePageName):
$url = '';
break;
case $page['custom_url']:
$url = $page['custom_url'];
break;
case $page['alias']:
$url = $page['alias'];
break;
default:
$url = $page['name'] . IA_URL_DELIMITER;
}
$result[] = $url;
}
}
break;
case self::LINKS_SET_PACKAGES:
foreach ($iaItem->getModuleItems() as $itemName => $package) {
if (iaCore::CORE != $package) {
$itemClassInstance = $this->iaCore->factoryModule('item', $package, iaCore::ADMIN, $itemName);
if (empty($itemClassInstance)) {
$itemClassInstance = $this->iaCore->factoryModule('item', $package, 'common', $itemName);
}
if (method_exists($itemClassInstance, self::GETTER_METHOD_NAME)) {
$entries = call_user_func([$itemClassInstance, self::GETTER_METHOD_NAME]);
if (is_array($entries) && $entries) {
$result = array_merge($result, $entries);
}
}
}
}
break;
case self::LINKS_SET_PLUGINS:
$itemsList = [];
$this->iaCore->startHook('sitemapGeneration', ['items' => &$itemsList]);
if (is_array($itemsList) && $itemsList) {
foreach ($itemsList as $item) {
$array = explode(':', $item);
$pluginInstance = $this->iaCore->factoryPlugin($array[0], iaCore::ADMIN, isset($array[1]) ? $array[1] : null);
if (method_exists($pluginInstance, self::GETTER_METHOD_NAME)) {
$entries = call_user_func([$pluginInstance, self::GETTER_METHOD_NAME]);
if (is_array($entries) && $entries) {
$result = $entries;
}
}
}
}
}
return $result;
}
protected function _validate(&$url)
{
$url = trim($url);
$url = (false === stripos($url, 'http://') && false === stripos($url, 'https://'))
? IA_CLEAR_URL . $url
: $url;
if (false !== stripos($url, IA_URL)) {
$url = str_replace(IA_URL, IA_CLEAR_URL, $url);
}
}
protected function _fixLanguageCode(array &$urls)
{
$masterLangCode = iaLanguage::getMasterLanguage()->iso;
foreach ($urls as &$url) {
$entry = [self::_injectLangCode($url, $masterLangCode)];
foreach ($this->iaCore->languages as $iso => $language) {
$entry[$iso] = self::_injectLangCode($url, $iso);
}
$url = $entry;
}
}
protected static function _injectLangCode($url, $isoCode)
{
return str_replace(IA_CLEAR_URL, IA_CLEAR_URL . $isoCode . IA_URL_DELIMITER, $url);
}
protected function _xmlify(array $urls)
{
$output = '';
foreach ($urls as $url) {
$langs = '';
if ($this->_multilingual) {
$locUrls = $url;
$url = array_shift($locUrls);
foreach ($locUrls as $iso => $locUrl) {
$langs .= str_replace([':url', ':lang'], [$locUrl, $iso], $this->_xmlLangEntry);
}
}
$output .= str_replace([':url', ':langs'], [$url, $langs], $this->_xmlEntry);
}
return $output;
}
}