categories_tag_processor.php
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Created: Thu, Sep 18, 1:21 PM

categories_tag_processor.php
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	<?php
	/**
	* @version $Id: categories_tag_processor.php 16409 2016-11-13 19:43:27Z alex $
	* @package In-Portal
	* @copyright Copyright (C) 1997 - 2011 Intechnic. All rights reserved.
	* @license GNU/GPL
	* In-Portal is Open Source software.
	* This means that this software may have been modified pursuant
	* the GNU General Public License, and as distributed it includes
	* or is derivative of works licensed under the GNU General Public License
	* or other free or open source software licenses.
	* See http://www.in-portal.org/license for copyright notices and details.
	*/

	defined('FULL_PATH') or die('restricted access!');

	class CategoriesTagProcessor extends kDBTagProcessor {

	function SubCatCount($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	if ( isset($params['today']) && $params['today'] ) {
	$sql = 'SELECT COUNT(*)
	FROM ' . $object->TableName . '
	WHERE (ParentPath LIKE "' . $object->GetDBField('ParentPath') . '%") AND (CreatedOn > ' . (adodb_mktime() - 86400) . ')';
	return $this->Conn->GetOne($sql) - 1;
	}

	return $object->GetDBField('CachedDescendantCatsQty');
	}

	/**
	* Returns category count in system
	*
	* @param Array $params
	* @return int
	*/
	function CategoryCount($params)
	{
	$count_helper = $this->Application->recallObject('CountHelper');
	/* @var $count_helper kCountHelper */

	$today_only = isset($params['today']) && $params['today'];
	return $count_helper->CategoryCount($today_only);
	}

	function IsNew($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	return $object->GetDBField('IsNew') ? 1 : 0;
	}

	function IsPick($params)
	{
	return $this->IsEditorsPick($params);
	}

	/**
	* Returns item's editors pick status (using not formatted value)
	*
	* @param Array $params
	* @return bool
	*/
	function IsEditorsPick($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	return $object->GetDBField('EditorsPick') == 1;
	}

	function ItemIcon($params)
	{
	$grids = $this->Application->getUnitOption($this->Prefix, 'Grids');
	$grid = $grids[ $params['grid'] ];

	if (!array_key_exists('Icons', $grid)) {
	return '';
	}

	$icons = $grid['Icons'];
	$icon_prefix = array_key_exists('icon_prefix', $params)? $params['icon_prefix'] : 'icon16_';

	if (array_key_exists('name', $params)) {
	$icon_name = $params['name'];
	return array_key_exists($icon_name, $icons) ? $icons[$icon_name] : '';
	}

	$object = $this->getObject($params);
	/* @var $object kDBList */

	if ($object->GetDBField('ThemeId') > 0) {
	if (!$object->GetDBField('IsMenu')) {
	return $icon_prefix . 'section_menuhidden_system.png';
	}
	return $icon_prefix . 'section_system.png';
	}

	$status = $object->GetDBField('Status');

	if ($status == STATUS_DISABLED) {
	return $icon_prefix . 'section_disabled.png';
	}

	if (!$object->GetDBField('IsMenu')) {
	return $icon_prefix . 'section_menuhidden.png';
	}

	if ($status == STATUS_PENDING) {
	return $icon_prefix . 'section_pending.png';
	}

	if ($object->GetDBField('IsNew') && ($icon_prefix == 'icon16_')) {
	return $icon_prefix . 'section_new.png'; // show gris icon only in grids
	}

	return $icon_prefix . 'section.png';
	}

	function ItemCount($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	$ci_table = $this->Application->getUnitOption('ci', 'TableName');

	$module_prefixes = implode(',', $this->Conn->qstrArray($this->_getModulePrefixes()));

	$sql = 'SELECT COUNT(*)
	FROM ' . $object->TableName . ' c
	JOIN ' . $ci_table . ' ci ON c.CategoryId = ci.CategoryId
	WHERE (c.TreeLeft BETWEEN ' . $object->GetDBField('TreeLeft') . ' AND ' . $object->GetDBField('TreeRight') . ') AND (ci.ItemPrefix IN (' . $module_prefixes . '))';

	return $this->Conn->GetOne($sql);
	}

	function _getModulePrefixes()
	{
	$ret = Array ();

	foreach ($this->Application->ModuleInfo as $module_info) {
	$ret[] = $module_info['Var'];
	}

	return array_unique($ret);
	}

	function ListCategories($params)
	{
	return $this->PrintList2($params);
	}

	function RootCategoryName($params)
	{
	return $this->Application->ProcessParsedTag('m', 'RootCategoryName', $params);
	}

	function CheckModuleRoot($params)
	{
	$module_name = getArrayValue($params, 'module') ? $params['module'] : 'In-Commerce';
	$module_root_cat = $this->Application->findModule('Name', $module_name, 'RootCat');

	$additional_cats = $this->SelectParam($params, 'add_cats');
	if ($additional_cats) {
	$additional_cats = explode(',', $additional_cats);
	}
	else {
	$additional_cats = array();
	}

	if ($this->Application->GetVar('m_cat_id') == $module_root_cat \|\| in_array($this->Application->GetVar('m_cat_id'), $additional_cats)) {
	$home_template = getArrayValue($params, 'home_template');

	if ( !$home_template ) {
	return;
	}

	$this->Application->Redirect($home_template, Array('pass'=>'all'));
	};
	}

	function CategoryPath($params)
	{
	$navigation_bar = $this->Application->recallObject('kNavigationBar');
	/* @var $navigation_bar kNavigationBar */

	return $navigation_bar->build($params);
	}

	/**
	* Shows category path to specified category
	*
	* @param Array $params
	* @return string
	*/
	function FieldCategoryPath($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	$field = $this->SelectParam($params, 'name,field');
	$category_id = $object->GetDBField($field);

	if ($category_id) {
	$params['cat_id'] = $category_id;

	$navigation_bar = $this->Application->recallObject('kNavigationBar');
	/* @var $navigation_bar kNavigationBar */

	return $navigation_bar->build($params);
	}

	return '';
	}

	function CurrentCategoryName($params)
	{
	$cat_object = $this->Application->recallObject($this->getPrefixSpecial(), $this->Prefix.'_List');
	/* @var $cat_object kDBList */

	$sql = 'SELECT '.$this->getTitleField().'
	FROM '.$cat_object->TableName.'
	WHERE CategoryId = '.(int)$this->Application->GetVar('m_cat_id');
	return $this->Conn->GetOne($sql);
	}

	/**
	* Returns current category name
	*
	* @param Array $params
	* @return string
	* @todo Find where it's used
	*/
	function CurrentCategory($params)
	{
	return $this->CurrentCategoryName($params);
	}

	function getTitleField()
	{
	$ml_formatter = $this->Application->recallObject('kMultiLanguage');
	/* @var $ml_formatter kMultiLanguage */

	return $ml_formatter->LangFieldName('Name');
	}

	/**
	* Returns symlinked category for given category
	*
	* @param int $category_id
	* @return int
	*/
	function getCategorySymLink($category_id)
	{
	if (!$category_id) {
	// don't bother to get symlink for "Home" category
	return $category_id;
	}

	$cache_key = 'category_symlinks[%CSerial%]';
	$cache = $this->Application->getCache($cache_key);

	if ($cache === false) {
	$id_field = $this->Application->getUnitOption($this->Prefix, 'IDField');
	$table_name = $this->Application->getUnitOption($this->Prefix, 'TableName');

	// get symlinked categories, that are not yet deleted
	$this->Conn->nextQueryCachable = true;
	$sql = 'SELECT c1.SymLinkCategoryId, c1.' . $id_field . '
	FROM ' . $table_name . ' c1
	JOIN ' . $table_name . ' c2 ON c1.SymLinkCategoryId = c2.' . $id_field;
	$cache = $this->Conn->GetCol($sql, $id_field);

	$this->Application->setCache($cache_key, $cache);
	}

	return array_key_exists($category_id, $cache) ? $cache[$category_id] : $category_id;
	}

	function CategoryLink($params)
	{
	$category_id = getArrayValue($params, 'cat_id');

	if ( $category_id === false ) {
	$category_id = $this->Application->GetVar($this->getPrefixSpecial() . '_id');
	}

	if ( "$category_id" == 'Root' ) {
	$category_id = $this->Application->findModule('Name', $params['module'], 'RootCat');
	}
	elseif ( "$category_id" == 'current' ) {
	$category_id = $this->Application->GetVar('m_cat_id');
	}

	if ( !array_key_exists('direct_link', $params) \|\| !$params['direct_link'] ) {
	$category_id = $this->getCategorySymLink((int)$category_id);
	}
	else {
	unset($params['direct_link']);
	}

	$virtual_template = $this->Application->getVirtualPageTemplate($category_id);

	if ( ($virtual_template !== false) && preg_match('/external:(.*)/', $virtual_template, $rets) ) {
	// external url (return here, instead of always replacing $params['t'] for kApplication::HREF to find it)
	return $rets[1];
	}

	unset($params['cat_id'], $params['module']);
	$new_params = Array ('pass' => 'm', 'm_cat_id' => $category_id, 'pass_category' => 1);
	$params = array_merge($params, $new_params);

	return $this->Application->ProcessParsedTag('m', 't', $params);
	}

	function CategoryList($params)
	{
	//$object = $this->Application->recallObject( $this->getPrefixSpecial() , $this->Prefix.'_List', $params );
	$object =& $this->GetList($params);

	if ($object->GetRecordsCount() == 0)
	{
	if (isset($params['block_no_cats'])) {
	$params['name'] = $params['block_no_cats'];
	return $this->Application->ParseBlock($params);
	}
	else {
	return '';
	}
	}

	if (isset($params['block'])) {
	return $this->PrintList($params);
	}
	else {
	$params['block'] = $params['block_main'];
	if (isset($params['block_row_start'])) {
	$params['row_start_block'] = $params['block_row_start'];
	}

	if (isset($params['block_row_end'])) {
	$params['row_end_block'] = $params['block_row_end'];
	}
	return $this->PrintList2($params);
	}
	}

	function Meta($params)
	{
	$object = $this->Application->recallObject($this->Prefix); // .'.-item'
	/* @var $object CategoriesItem */

	$meta_type = $params['name'];
	if ($object->isLoaded()) {
	// 1. get module prefix by current category
	$category_helper = $this->Application->recallObject('CategoryHelper');
	/* @var $category_helper CategoryHelper */

	$category_path = explode('\|', substr($object->GetDBField('ParentPath'), 1, -1));
	$module_info = $category_helper->getCategoryModule($params, $category_path);

	if ( $module_info ) {
	// 2. get item template by current category & module prefix
	$rewrite_processor = $this->Application->recallObject('kRewriteUrlProcessor');
	/* @var $rewrite_processor kRewriteUrlProcessor */

	$category_params = Array (
	'CategoryId' => $object->GetID(),
	'ParentPath' => $object->GetDBField('ParentPath'),
	);

	$item_template = $rewrite_processor->GetItemTemplate($category_params, $module_info['Var']);

	if ($this->Application->GetVar('t') == $item_template) {
	// we are located on item's details page
	$item = $this->Application->recallObject($module_info['Var']);
	/* @var $item kCatDBItem */

	// 3. get item's meta data
	$value = $item->GetField('Meta'.$meta_type);
	if ($value) {
	return $value;
	}
	}

	// 4. get category meta data
	$value = $object->GetField('Meta'.$meta_type);
	if ($value) {
	return $value;
	}
	}
	}

	// 5. get default meta data
	switch ($meta_type) {
	case 'Description':
	$config_name = 'Category_MetaDesc';
	break;
	case 'Keywords':
	$config_name = 'Category_MetaKey';
	break;
	}

	return $this->Application->ConfigValue($config_name);
	}

	function BuildListSpecial($params)
	{
	if (($this->Special != '') && !is_numeric($this->Special)) {
	// When recursive category list is printed (like in sitemap), then special
	// should be generated even if it's already present. Without it list on this
	// level will erase list on previous level, because it will be stored in same object.
	return $this->Special;
	}

	if ( isset($params['parent_cat_id']) ) {
	$parent_cat_id = $params['parent_cat_id'];
	}
	else {
	$parent_cat_id = $this->Application->GetVar($this->Prefix.'_id');
	if (!$parent_cat_id) {
	$parent_cat_id = $this->Application->GetVar('m_cat_id');
	}
	if (!$parent_cat_id) {
	$parent_cat_id = 0;
	}
	}

	$list_unique_key = $this->getUniqueListKey($params);
	// check for "admin" variable, because we are parsing front-end template from admin when using template editor feature
	if ($this->Application->GetVar('admin') \|\| !$this->Application->isAdmin) {
	// add parent category to special, when on Front-End,
	// because there can be many category lists on same page
	$list_unique_key .= $parent_cat_id;
	}

	if ($list_unique_key == '') {
	return parent::BuildListSpecial($params);
	}

	return crc32($list_unique_key);
	}

	function IsCurrent($params)
	{
	$object = $this->getObject($params);
	if ($object->GetID() == $this->Application->GetVar('m_cat_id')) {
	return true;
	}
	else {
	return false;
	}
	}

	/**
	* Substitutes category in last template base on current category
	* This is required becasue when you navigate catalog using AJAX, last_template is not updated
	* but when you open item edit from catalog last_template is used to build opener_stack
	* So, if we don't substitute m_cat_id in last_template, after saving item we'll get redirected
	* to the first category we've opened, not the one we navigated to using AJAX
	*
	* @param Array $params
	*/
	function UpdateLastTemplate($params)
	{
	$category_id = $this->Application->GetVar('m_cat_id');

	$wid = $this->Application->GetVar('m_wid');
	list($index_file, $env) = explode('\|', $this->Application->RecallVar(rtrim('last_template_'.$wid, '_')), 2);

	$vars_backup = Array ();
	$vars = $this->Application->processQueryString($env);

	foreach ($vars as $var_name => $var_value) {
	$vars_backup[$var_name] = $this->Application->GetVar($var_name);
	$this->Application->SetVar($var_name, $var_value);
	}

	// update required fields
	$this->Application->SetVar('m_cat_id', $category_id);
	$this->Application->Session->SaveLastTemplate($params['template']);

	foreach ($vars_backup as $var_name => $var_value) {
	$this->Application->SetVar($var_name, $var_value);
	}
	}

	function GetParentCategory($params)
	{
	$parent_id = $this->Application->getBaseCategory();
	$category_id = $this->Application->GetVar('m_cat_id');

	if ($category_id != $parent_id) {
	$sql = 'SELECT ParentId
	FROM ' . $this->Application->getUnitOption($this->Prefix, 'TableName') . '
	WHERE ' . $this->Application->getUnitOption($this->Prefix, 'IDField') . ' = ' . $category_id;
	$parent_id = $this->Conn->GetOne($sql);
	}

	return $parent_id;
	}

	function InitCacheUpdater($params)
	{
	kUtil::safeDefine('CACHE_PERM_CHUNK_SIZE', 30);

	$continue = $this->Application->GetVar('continue');
	$total_cats = (int)$this->Conn->GetOne('SELECT COUNT(*) FROM ' . TABLE_PREFIX . 'Categories');

	if ( $continue === false ) {
	$rebuild_mode = $this->Application->ConfigValue('CategoryPermissionRebuildMode');

	if ( $rebuild_mode == CategoryPermissionRebuild::AUTOMATIC && $total_cats > CACHE_PERM_CHUNK_SIZE ) {
	// first step, if category count > CACHE_PERM_CHUNK_SIZE, then ask for cache update
	return true;
	}

	// if we don't have to ask, then assume user selected "Yes" in permcache update dialog
	$continue = 1;
	}

	$updater = $this->Application->makeClass('kPermCacheUpdater', Array ($continue));
	/* @var $updater kPermCacheUpdater */

	if ( $continue === '0' ) { // No in dialog
	$updater->clearData();
	$this->Application->Redirect($params['destination_template']);
	}

	$ret = false; // don't ask for update

	if ( $continue == 1 ) { // Initial run
	$updater->setData();
	}

	if ( $continue == 2 ) { // Continuing
	// called from AJAX request => returns percent
	$needs_more = true;

	while ( $needs_more && $updater->iteration <= CACHE_PERM_CHUNK_SIZE ) {
	// until proceeded in this step category count exceeds category per step limit
	$needs_more = $updater->DoTheJob();
	}

	if ( $needs_more ) {
	// still some categories are left for next step
	$updater->setData();
	}
	else {
	// all done, update left tree and redirect
	$updater->SaveData();

	$this->Application->HandleEvent(new kEvent('c:OnResetCMSMenuCache'));

	$this->Application->RemoveVar('PermCache_UpdateRequired');
	$this->Application->StoreVar('RefreshStructureTree', 1);
	$this->Application->Redirect($params['destination_template']);
	}

	$ret = $updater->getDonePercent();
	}

	return $ret;
	}

	/**
	* Parses warning block, but with style="display: none;". Used during permissions saving from AJAX
	*
	* @param Array $params
	* @return string
	* @access protected
	*/
	protected function SaveWarning($params)
	{
	if ( $this->Prefix == 'st' ) {
	// don't use this method for other prefixes then Categories, that use this tag processor
	return parent::SaveWarning($params);
	}

	$main_prefix = getArrayValue($params, 'main_prefix');
	if ( $main_prefix && $main_prefix != '$main_prefix' ) {
	$top_prefix = $main_prefix;
	}
	else {
	$top_prefix = $this->Application->GetTopmostPrefix($this->Prefix);
	}

	$temp_tables = substr($this->Application->GetVar($top_prefix . '_mode'), 0, 1) == 't';
	$modified = $this->Application->RecallVar($top_prefix . '_modified');

	if ( !$temp_tables ) {
	$this->Application->RemoveVar($top_prefix . '_modified');
	return '';
	}

	$block_name = $this->SelectParam($params, 'render_as,name');
	if ( $block_name ) {
	$block_params = $this->prepareTagParams($params);
	$block_params['name'] = $block_name;
	$block_params['edit_mode'] = $temp_tables ? 1 : 0;
	$block_params['display'] = $temp_tables && $modified ? 1 : 0;
	return $this->Application->ParseBlock($block_params);
	}

	return $temp_tables && $modified ? 1 : 0;
	}

	/**
	* Allows to detect if this prefix has something in clipboard
	*
	* @param Array $params
	* @return bool
	*/
	function HasClipboard($params)
	{
	$clipboard = $this->Application->RecallVar('clipboard');
	if ($clipboard) {
	$clipboard = unserialize($clipboard);
	foreach ($clipboard as $prefix => $clipboard_data) {
	foreach ($clipboard_data as $mode => $ids) {
	if ( count($ids) ) {
	return 1;
	}
	}
	}
	}
	return 0;
	}

	/**
	* Allows to detect if root category being edited
	*
	* @param Array $params
	*/
	function IsRootCategory($params)
	{
	$object = $this->getObject($params);
	/* @var $object CategoriesItem */

	return $object->IsRoot();
	}

	/**
	* Returns home category id
	*
	* @param Array $params
	* @return int
	*/
	function HomeCategory($params)
	{
	return $this->Application->getBaseCategory();
	}

	/**
	* Used for disabling "Home" and "Up" buttons in category list
	*
	* @param Array $params
	* @return bool
	*/
	function ModuleRootCategory($params)
	{
	return $this->Application->GetVar('m_cat_id') == $this->Application->getBaseCategory();
	}

	function CatalogItemCount($params)
	{
	$params['skip_quering'] = true;
	$object =& $this->GetList($params);

	return $object->GetRecordsCount(false) != $object->GetRecordsCount() ? $object->GetRecordsCount().' / '.$object->GetRecordsCount(false) : $object->GetRecordsCount();
	}

	function InitCatalog($params)
	{
	$tab_prefixes = $this->Application->GetVar('tp'); // {all, <prefixes_list>, none}
	if ( $tab_prefixes === false ) {
	$tab_prefixes = 'all';
	}

	$skip_prefixes = isset($params['skip_prefixes']) && $params['skip_prefixes'] ? explode(',', $params['skip_prefixes']) : Array();
	$replace_main = isset($params['replace_m']) && $params['replace_m'];

	// get all prefixes available
	$prefixes = Array();
	foreach ($this->Application->ModuleInfo as $module_name => $module_data) {
	$prefix = $module_data['Var'];

	if ( $prefix == 'adm' /* \|\| $prefix == 'm'*/ ) {
	continue;
	}

	if ($prefix == 'm' && $replace_main) {
	$prefix = 'c';
	}

	$prefixes[] = $prefix;
	}

	if ($tab_prefixes == 'none') {
	$skip_prefixes = array_unique(array_merge($skip_prefixes, $prefixes));
	unset($skip_prefixes[ array_search($replace_main ? 'c' : 'm', $skip_prefixes) ]);
	}
	elseif ($tab_prefixes != 'all') {
	// prefix list here
	$tab_prefixes = explode(',', $tab_prefixes); // list of prefixes that should stay
	$skip_prefixes = array_unique(array_merge($skip_prefixes, array_diff($prefixes, $tab_prefixes)));
	}

	$params['name'] = $params['render_as'];
	$params['skip_prefixes'] = implode(',', $skip_prefixes);
	return $this->Application->ParseBlock($params);
	}

	/**
	* Determines, that printed category/menu item is currently active (will also match parent category)
	*
	* @param Array $params
	* @return bool
	*/
	function IsActive($params)
	{
	static $current_path = null;

	if ( !isset($current_path) ) {
	$sql = 'SELECT ParentPath
	FROM ' . TABLE_PREFIX . 'Categories
	WHERE CategoryId = ' . (int)$this->Application->GetVar('m_cat_id');
	$current_path = $this->Conn->GetOne($sql);
	}

	if ( array_key_exists('parent_path', $params) ) {
	$test_path = $params['parent_path'];
	}
	else {
	$template = isset($params['template']) ? $params['template'] : '';

	if ( $template ) {
	// when using from "c:CachedMenu" tag
	$sql = 'SELECT ParentPath
	FROM ' . TABLE_PREFIX . 'Categories
	WHERE NamedParentPath = ' . $this->Conn->qstr('Content/' . $template);
	$test_path = $this->Conn->GetOne($sql);
	}
	else {
	// when using from "c:PrintList" tag
	$cat_id = array_key_exists('cat_id', $params) && $params['cat_id'] ? $params['cat_id'] : false;
	if ( $cat_id === false ) {
	// category not supplied -> get current from PrintList
	$category = $this->getObject($params);
	}
	else {
	if ( "$cat_id" == 'Root' ) {
	$cat_id = $this->Application->findModule('Name', $params['module'], 'RootCat');
	}

	$category = $this->Application->recallObject($this->Prefix . '.-c' . $cat_id, $this->Prefix, Array ('skip_autoload' => true));
	/* @var $category CategoriesItem */

	$category->Load($cat_id);
	}

	$test_path = $category->GetDBField('ParentPath');
	}
	}

	return strpos($current_path, $test_path) !== false;
	}

	/**
	* Checks if user have one of required permissions
	*
	* @param Array $params
	* @return bool
	*/
	function HasPermission($params)
	{
	$perm_helper = $this->Application->recallObject('PermissionsHelper');
	/* @var $perm_helper kPermissionsHelper */

	$params['raise_warnings'] = 0;
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	$params['cat_id'] = $object->isLoaded() ? $object->GetDBField('ParentPath') : $this->Application->GetVar('m_cat_id');
	return $perm_helper->TagPermissionCheck($params);
	}

	/**
	* Prepares name for field with event in it (used only on front-end)
	*
	* @param Array $params
	* @return string
	*/
	function SubmitName($params)
	{
	return 'events[' . $this->Prefix . '][' . $params['event'] . ']';
	}

	/**
	* Returns last modification date of items in category / system
	*
	* @param Array $params
	* @return string
	*/
	function LastUpdated($params)
	{
	$category_id = (int)$this->Application->GetVar('m_cat_id');
	$local = array_key_exists('local', $params) && ($category_id > 0) ? $params['local'] : false;

	$serial_name = $this->Application->incrementCacheSerial('c', $local ? $category_id : null, false);
	$cache_key = 'category_last_updated[%' . $serial_name . '%]';

	$row_data = $this->Application->getCache($cache_key);

	if ( $row_data === false ) {
	if ( $local && ($category_id > 0) ) {
	// scan only current category & it's children
	list ($tree_left, $tree_right) = $this->Application->getTreeIndex($category_id);

	$sql = 'SELECT MAX(Modified) AS ModDate, MAX(CreatedOn) AS NewDate
	FROM ' . TABLE_PREFIX . 'Categories
	WHERE TreeLeft BETWEEN ' . $tree_left . ' AND ' . $tree_right;
	}
	else {
	// scan all categories in system
	$sql = 'SELECT MAX(Modified) AS ModDate, MAX(CreatedOn) AS NewDate
	FROM ' . TABLE_PREFIX . 'Categories';
	}

	$this->Conn->nextQueryCachable = true;
	$row_data = $this->Conn->GetRow($sql);
	$this->Application->setCache($cache_key, $row_data);
	}

	if ( !$row_data ) {
	return '';
	}

	$date = $row_data[$row_data['NewDate'] > $row_data['ModDate'] ? 'NewDate' : 'ModDate'];

	// format date
	$format = isset($params['format']) ? $params['format'] : '_regional_DateTimeFormat';

	if ( preg_match("/_regional_(.*)/", $format, $regs) ) {
	$lang = $this->Application->recallObject('lang.current');
	/* @var $lang LanguagesItem */

	if ( $regs[1] == 'DateTimeFormat' ) {
	// combined format
	$format = $lang->GetDBField('DateFormat') . ' ' . $lang->GetDBField('TimeFormat');
	}
	else {
	// simple format
	$format = $lang->GetDBField($regs[1]);
	}
	}

	return adodb_date($format, $date);
	}

	function CategoryItemCount($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBList */

	$params['cat_id'] = $object->GetID();

	$count_helper = $this->Application->recallObject('CountHelper');
	/* @var $count_helper kCountHelper */

	return $count_helper->CategoryItemCount($params['prefix'], $params);
	}

	/**
	* Returns prefix + any word (used for shared between categories per page settings)
	*
	* @param Array $params
	* @return string
	*/
	function VarName($params)
	{
	return $this->Prefix.'_'.$params['type'];
	}

	/**
	* Checks if current category is valid symbolic link to another category
	*
	* @param Array $params
	* @return string
	*/
	function IsCategorySymLink($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBList */

	$sym_category_id = $object->GetDBField('SymLinkCategoryId');

	if (is_null($sym_category_id))
	{
	return false;
	}

	$id_field = $this->Application->getUnitOption($this->Prefix, 'IDField');
	$table_name = $this->Application->getUnitOption($this->Prefix, 'TableName');

	$sql = 'SELECT '.$id_field.'
	FROM '.$table_name.'
	WHERE '.$id_field.' = '.$sym_category_id;

	return $this->Conn->GetOne($sql)? true : false;
	}

	/**
	* Builds link to a category in the Admin Tree.
	*
	* @param array $params Tag params.
	*
	* @return string
	*/
	protected function AdminTreeLink(array $params)
	{
	$params['direct_link'] = 1;
	$params['pass'] = 'm';
	$params['m_opener'] = 'r';

	if ( $this->Application->ConfigValue('Catalog_PreselectModuleTab') ) {
	$module_prefix = $this->GetModulePrefix($params);

	if ( $module_prefix ) {
	$params['anchor'] = 'tab-' . $module_prefix;
	}
	}

	return $this->CategoryLink($params);
	}

	/**
	* Returns module prefix based on root category for given
	*
	* @param Array $params
	* @return string
	*/
	function GetModulePrefix($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	$parent_path = explode('\|', substr($object->GetDBField('ParentPath'), 1, -1));

	$category_helper = $this->Application->recallObject('CategoryHelper');
	/* @var $category_helper CategoryHelper */

	$module_info = $category_helper->getCategoryModule($params, $parent_path);

	return $module_info ? $module_info['Var'] : 'c';
	}

	function ImageSrc($params)
	{
	list ($ret, $tag_processed) = $this->processAggregatedTag('ImageSrc', $params, $this->getPrefixSpecial());
	return $tag_processed ? $ret : false;
	}

	function PageLink($params)
	{
	$params['m_cat_page'] = $this->Application->GetVar($this->getPrefixSpecial() . '_Page');

	return parent::PageLink($params);
	}

	/**
	* Returns spelling suggestions against search keyword
	*
	* @param Array $params
	* @return string
	* @access protected
	*/
	protected function SpellingSuggestions($params)
	{
	$keywords = $this->Application->unescapeRequestVariable(trim($this->Application->GetVar('keywords')));
	if ( !$keywords ) {
	return '';
	}

	// 1. try to get already cached suggestion
	$cache_key = 'search.suggestion[%SpellingDictionarySerial%]:' . $keywords;
	$suggestion = $this->Application->getCache($cache_key);

	if ( $suggestion !== false ) {
	return $suggestion;
	}

	$table_name = $this->Application->getUnitOption('spelling-dictionary', 'TableName');

	// 2. search suggestion in database
	$this->Conn->nextQueryCachable = true;
	$sql = 'SELECT SuggestedCorrection
	FROM ' . $table_name . '
	WHERE MisspelledWord = ' . $this->Conn->qstr($keywords);
	$suggestion = $this->Conn->GetOne($sql);

	if ( $suggestion !== false ) {
	$this->Application->setCache($cache_key, $suggestion);

	return $suggestion;
	}

	// 3. suggestion not found in database, ask webservice
	$curl_helper = $this->Application->recallObject('CurlHelper');
	/* @var $curl_helper kCurlHelper */

	$curl_helper->SetRequestData(array(
	'appid' => $this->Application->ConfigValue('YahooApplicationId'),
	'query' => $keywords,
	));

	$xml_data = $curl_helper->Send('http://search.yahooapis.com/WebSearchService/V1/spellingSuggestion');

	$xml_helper = $this->Application->recallObject('kXMLHelper');
	/* @var $xml_helper kXMLHelper */

	$root_node =& $xml_helper->Parse($xml_data);
	/* @var $root_node kXMLNode */

	$result = $root_node->FindChild('RESULT');
	/* @var $result kXMLNode */

	if ( is_object($result) ) {
	// webservice responded -> save in local database
	$fields_hash = Array ('MisspelledWord' => $keywords, 'SuggestedCorrection' => $result->Data);

	$this->Conn->doInsert($fields_hash, $table_name);
	$this->Application->setCache($cache_key, $result->Data);

	return $result->Data;
	}

	return '';
	}

	/**
	* Shows link for searching by suggested word
	*
	* @param Array $params
	* @return string
	*/
	function SuggestionLink($params)
	{
	$params['keywords'] = $this->SpellingSuggestions($params);

	return $this->Application->ProcessParsedTag('m', 'Link', $params);
	}

	function InitCatalogTab($params)
	{
	$tab_params['mode'] = $this->Application->GetVar('tm'); // single/multi selection possible
	$tab_params['special'] = $this->Application->GetVar('ts'); // use special for this tab
	$tab_params['dependant'] = $this->Application->GetVar('td'); // is grid dependant on categories grid

	// set default params (same as in catalog)
	if ( $tab_params['mode'] === false ) {
	$tab_params['mode'] = 'multi';
	}

	if ( $tab_params['special'] === false ) {
	$tab_params['special'] = '';
	}

	if ( $tab_params['dependant'] === false ) {
	$tab_params['dependant'] = 'yes';
	}

	// pass params to block with tab content
	$params['name'] = $params['render_as'];
	$special = $tab_params['special'] ? $tab_params['special'] : $this->Special;
	$params['prefix'] = trim($this->Prefix.'.'.$special, '.');

	$prefix_append = $this->Application->GetVar('prefix_append');
	if ($prefix_append) {
	$params['prefix'] .= $prefix_append;
	}

	$default_grid = array_key_exists('default_grid', $params) ? $params['default_grid'] : 'Default';
	$radio_grid = array_key_exists('radio_grid', $params) ? $params['radio_grid'] : 'Radio';

	$params['cat_prefix'] = trim('c.'.($tab_params['special'] ? $tab_params['special'] : $this->Special), '.');
	$params['tab_mode'] = $tab_params['mode'];
	$params['grid_name'] = ($tab_params['mode'] == 'multi') ? $default_grid : $radio_grid;
	$params['tab_dependant'] = $tab_params['dependant'];
	$params['show_category'] = $tab_params['special'] == 'showall' ? 1 : 0; // this is advanced view -> show category name

	if ($special == 'showall' \|\| $special == 'user') {
	$params['grid_name'] .= 'ShowAll';
	}

	// use $pass_params to be able to pass 'tab_init' parameter from m_ModuleInclude tag
	return $this->Application->ParseBlock($params, 1);
	}

	/**
	* Show CachedNavbar of current item primary category
	*
	* @param Array $params
	* @return string
	*/
	function CategoryName($params)
	{
	// show category cachednavbar of
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	$category_id = isset($params['cat_id']) ? $params['cat_id'] : $object->GetDBField('CategoryId');

	$cache_key = 'category_paths[%CIDSerial:' . $category_id . '%][%PhrasesSerial%][Adm:' . (int)$this->Application->isAdmin . ']';
	$category_path = $this->Application->getCache($cache_key);

	if ($category_path === false) {
	// not chached
	if ($category_id > 0) {
	$cached_navbar = $object->GetField('CachedNavbar');

	if ($category_id == $object->GetDBField('ParentId')) {
	// parent category cached navbar is one element smaller, then current ones
	$cached_navbar = explode('&\|&', $cached_navbar);
	array_pop($cached_navbar);
	$cached_navbar = implode('&\|&', $cached_navbar);
	}
	else {
	// no relation with current category object -> query from db
	$language_id = (int)$this->Application->GetVar('m_lang');
	if (!$language_id) {
	$language_id = 1;
	}

	$sql = 'SELECT l' . $language_id . '_CachedNavbar
	FROM ' . $object->TableName . '
	WHERE ' . $object->IDField . ' = ' . $category_id;
	$cached_navbar = $this->Conn->GetOne($sql);
	}

	$cached_navbar = preg_replace('/^(Content&\\|&\|Content)/i', '', $cached_navbar);

	$category_path = trim($this->CategoryName( Array('cat_id' => 0) ).' > '.str_replace('&\|&', ' > ', $cached_navbar), ' > ');
	}
	else {
	$category_path = $this->Application->Phrase(($this->Application->isAdmin ? 'la_' : 'lu_') . 'rootcategory_name');
	}

	$this->Application->setCache($cache_key, $category_path);
	}

	return $category_path;
	}

	// structure related

	/**
	* Returns page object based on requested params
	*
	* @param Array $params
	* @return CategoriesItem
	*/
	function &_getPage($params)
	{
	$page = $this->Application->recallObject($this->Prefix . '.' . $this->_getPageSpecial($params), null, $params);
	/* @var $page kDBItem */

	// 1. load by given id
	$page_id = array_key_exists('page_id', $params) ? $params['page_id'] : 0;

	if ( $page_id ) {
	if ( $page_id != $page->GetID() ) {
	// load if different
	$page->Load($page_id);
	}

	return $page;
	}

	// 2. load by template
	$template = array_key_exists('page', $params) ? $params['page'] : '';

	if ( !$template ) {
	$template = $this->Application->GetVar('t');
	}

	// different path in structure AND design template differs from requested template
	$structure_path_match = mb_strtolower($page->GetDBField('NamedParentPath')) == mb_strtolower('Content/' . $template);
	$design_match = $page->GetDBField('CachedTemplate') == $template;

	if ( !$structure_path_match && !$design_match ) {
	// Same sql like in "c:getPassedID". Load, when current page object doesn't match requested page object
	$themes_helper = $this->Application->recallObject('ThemesHelper');
	/* @var $themes_helper kThemesHelper */

	$page_id = $themes_helper->getPageByTemplate($template);

	$page->Load($page_id);
	}

	return $page;
	}

	/**
	* Returns unique special for each used page
	*
	* @param Array $params
	* @return string
	* @access protected
	*/
	protected function _getPageSpecial($params)
	{
	$ret = Array ();
	$page_id = array_key_exists('page_id', $params) ? $params['page_id'] : 0;
	$template = array_key_exists('page', $params) ? $params['page'] : '';

	if ( $page_id ) {
	$ret[] = 'page_id=' . $page_id;
	}

	if ( $template ) {
	$ret[] = 'page=' . $template;
	}

	return $ret ? '-virtual-' . kUtil::crc32(serialize($ret)) : '-virtual';
	}

	/**
	* Returns requested content block content of current or specified page
	*
	* @param Array $params
	* @return string
	*/
	function ContentBlock($params)
	{
	$num = getArrayValue($params, 'num');

	if ( !$num ) {
	$name = getArrayValue($params, 'name');

	if ( $name ) {
	$num = kUtil::crc32($name);
	}
	}

	if ( !$num ) {
	return 'NO CONTENT NUM SPECIFIED';
	}

	$page =& $this->_getPage($params);
	/* @var $page kDBItem */

	if ( !$page->isLoaded() ) {
	// page is not created yet => all blocks are empty
	return '';
	}

	$page_helper = $this->Application->recallObject('PageHelper');
	/* @var $page_helper PageHelper */

	$content = $this->Application->recallObject('content.-block', null, Array ('skip_autoload' => true));
	/* @var $content kDBItem */

	if ( !$page_helper->loadContentBlock($content, $page, $num) && EDITING_MODE ) {
	$page_helper->createNewContentBlock($page->GetID(), $num);
	$page_helper->loadContentBlock($content, $page, $num);
	}

	$edit_code_before = $edit_code_after = '';
	$inline_editing = isset($params['mode']) && $params['mode'] == 'inline';

	if ( EDITING_MODE == EDITING_MODE_CONTENT ) {
	if ( $inline_editing ) {
	$params['name'] = 'content_block_' . $num;

	$editing_hint = $this->Application->Phrase('la_hint_ClickToEdit', false, true);

	$edit_code_before = '
	<div class="cms-edit-btn-container mode-inline-edit" data-content-id="' . $content->GetID() . '">
	<div class="inline-edit-layer"></div>
	<div class="inline-saving-layer"></div>
	<div class="cms-btn-content" title="' . kUtil::escape($editing_hint, kUtil::ESCAPE_HTML) . '" contenteditable="true" id="' . kUtil::escape('content_block_' . $num, kUtil::ESCAPE_HTML) . '">';

	$edit_code_after = '</div></div>' . $this->FCKEditor($params);
	}
	else {
	$button_code = $this->Application->ProcessParsedTag($content->getPrefixSpecial(), 'AdminEditButton', $params);

	$edit_code_before = '
	<div class="cms-edit-btn-container">
	' . $button_code . '
	<div class="cms-btn-content">';

	$edit_code_after = '</div></div>';
	}
	}

	if ( $this->Application->GetVar('_editor_preview_') == 1 ) {
	$data = $this->Application->RecallVar('_editor_preview_content_');
	}
	elseif ( EDITING_MODE == EDITING_MODE_CONTENT && $inline_editing ) {
	// don't use formatter, that replaced "@@ID@@" links
	$content->SetFieldOption('Content', 'using_fck', false);
	$data = $content->GetField('Content');
	$content->SetFieldOption('Content', 'using_fck', true);
	}
	else {
	// use formatter, that replaced "@@ID@@" links
	$data = $content->GetField('Content');
	}

	$data = $edit_code_before . $this->_transformContentBlockData($data, $params) . $edit_code_after;

	if ( $data != '' ) {
	$this->Application->Parser->DataExists = true;
	}

	return $data;
	}

	/**
	* Apply all kinds of content block data transformations without rewriting ContentBlock tag
	*
	* @param string $data
	* @param Array $params
	* @return string
	*/
	function _transformContentBlockData(&$data, $params)
	{
	return $data;
	}

	/**
	* Returns current page name or page based on page/page_id parameters
	*
	* @param Array $params
	* @return string
	* @todo Used?
	*/
	function PageName($params)
	{
	$page =& $this->_getPage($params);

	return $page->GetDBField('Name');
	}

	/**
	* Returns current/given page information
	*
	* @param Array $params
	* @return string
	*/
	function PageInfo($params)
	{
	$page =& $this->_getPage($params);

	switch ($params['type']) {
	case 'title':
	// TODO: rename column to SectionTitle
	$db_field = 'Name'; // "Section Title" - title to show on page (e.g. in <h1> tag)
	break;

	case 'htmlhead_title':
	// TODO: rename column to HtmlTitle
	$db_field = 'Title'; // "Title (on Page)" - in <title> html tag
	break;

	case 'meta_title':
	$db_field = 'MetaTitle';
	break;

	case 'menu_title':
	$db_field = 'MenuTitle'; // "Title (Menu Item)" - in menu and navigation bar
	break;

	case 'meta_keywords':
	$db_field = 'MetaKeywords';
	$cat_field = 'Keywords';
	break;

	case 'meta_description':
	$db_field = 'MetaDescription';
	$cat_field = 'Description';
	break;

	case 'tracking':
	case 'index_tools':
	if (!EDITING_MODE) {
	$tracking = $page->GetDBField('IndexTools');
	return $tracking ? $tracking : $this->Application->ConfigValue('cms_DefaultTrackingCode');
	}
	// no break here on purpose

	default:
	return '';
	}

	$default = isset($params['default']) ? $params['default'] : '';
	$val = $page->GetField($db_field);
	if (!$default) {
	if ($this->Application->isModuleEnabled('In-Portal')) {
	if (!$val && ($params['type'] == 'meta_keywords' \|\| $params['type'] == 'meta_description')) {
	// take category meta if it's not set for the page
	return $this->Application->ProcessParsedTag('c', 'Meta', Array('name' => $cat_field));
	}
	}
	}

	if (isset($params['force_default']) && $params['force_default']) {
	return $default;
	}

	if (preg_match('/^_Auto:/', $val)) {
	$val = $default;

	/*if ($db_field == 'Title') {
	$page->SetDBField($db_field, $default);
	$page->Update();
	}*/
	}
	elseif ($page->GetID() == false) {
	return $default;
	}

	return $val;
	}

	/**
	* Includes admin css and js, that are required for cms usage on Front-Edn
	*
	* @param Array $params
	* @return string
	* @access protected
	*/
	protected function EditingScripts($params)
	{
	if ( $this->Application->GetVar('admin_scripts_included') \|\| !EDITING_MODE ) {
	return '';
	}

	$this->Application->SetVar('admin_scripts_included', 1);
	$js_url = $this->Application->BaseURL() . 'core/admin_templates/js';

	$minify_helper = $this->Application->recallObject('MinifyHelper');
	/* @var $minify_helper MinifyHelper */

	$to_compress = Array (
	$js_url . '/jquery/thickbox/thickbox.css',
	$js_url . '/../incs/cms.css',
	$js_url . '/../img/toolbar/toolbar-sprite.css',
	);

	$css_compressed = $minify_helper->CompressScriptTag(Array ('files' => implode('\|', $to_compress), 'templates_base' => $js_url . '/../'));

	$ret = '<link rel="stylesheet" href="' . $css_compressed . '" type="text/css" media="screen"/>' . "\n";

	$ret .= ' <!--[if IE]>
	<link rel="stylesheet" href="' . $js_url . '/../incs/cms_ie.css' . '" type="text/css" media="screen"/>
	<![endif]-->';

	if ( EDITING_MODE == EDITING_MODE_DESIGN ) {
	$ret .= ' <style type="text/css" media="all">
	div.movable-element .movable-header { cursor: move; }
	</style>';
	}

	$ret .= '<script type="text/javascript" src="' . $js_url . '/jquery/jquery-1.9.1.min.js"></script>' . "\n";
	$ret .= '<script type="text/javascript" src="' . $js_url . '/jquery/jquery-ui-1.10.3.custom.min.js"></script>' . "\n";

	$to_compress = Array (
	$js_url . '/is.js',
	$js_url . '/application.js',
	$js_url . '/script.js',
	$js_url . '/toolbar.js',
	$js_url . '/jquery/thickbox/thickbox.js',
	$js_url . '/template_manager.js',
	);

	$js_compressed = $minify_helper->CompressScriptTag( Array ('files' => implode('\|', $to_compress)) );

	$ret .= '<script type="text/javascript" src="' . $js_compressed . '"></script>' . "\n";
	$ret .= '<script language="javascript">' . "\n";
	$ret .= "TB.pathToImage = '" . $js_url . "/jquery/thickbox/loadingAnimation.gif';" . "\n";

	$template = $this->Application->GetVar('t');
	$theme_id = $this->Application->GetVar('m_theme');

	$url_params = Array ('block' => '#BLOCK#', 'theme-file_event' => '#EVENT#', 'theme_id' => $theme_id, 'source' => $template, 'pass' => 'all,theme-file', 'front' => 1, 'm_opener' => 'd', '__NO_REWRITE__' => 1);
	$edit_template_url = $this->Application->HREF('themes/template_edit', ADMIN_DIRECTORY, $url_params, 'index.php');

	$url_params = Array ('theme-file_event' => 'OnSaveLayout', 'source' => $template, 'pass' => 'all,theme-file', '__NO_REWRITE__' => 1);
	$save_layout_url = $this->Application->HREF('index', '', $url_params);

	$url_params = Array ('content_event' => 'OnSaveContentBlock', 'pass' => 'all,content', '__NO_REWRITE__' => 1, 'no_amp' => 1);
	$save_content_url = $this->Application->HREF('index', ADMIN_DIRECTORY, $url_params, 'index.php');

	$page =& $this->_getPage($params);

	$page_helper = $this->Application->recallObject('PageHelper');
	/* @var $page_helper PageHelper */

	$class_params = Array (
	'languagePrefix' => 'l' . $this->Application->GetVar('m_lang') . '_',
	'pageId' => $page->GetID(),
	'pageInfo' => $page->isLoaded() ? $page_helper->getPageInfo( $page->GetID() ) : Array (),
	'editUrl' => $edit_template_url,
	'browseUrl' => $this->Application->HREF('', '', Array ('editing_mode' => '#EDITING_MODE#', '__NO_REWRITE__' => 1)),
	'saveLayoutUrl' => $save_layout_url,
	'saveContentUrl' => $save_content_url,
	'editingMode' => (int)EDITING_MODE,
	);

	$site_name = strip_tags($this->Application->ConfigValue('Site_Name'));
	$ret .= "var aTemplateManager = new TemplateManager(" . json_encode($class_params) . ");\n";
	$ret .= "var main_title = '" . kUtil::escape($site_name, kUtil::ESCAPE_JS) . "';" . "\n";

	$use_popups = (int)$this->Application->ConfigValue('UsePopups');
	$ret .= "var \$use_popups = " . ($use_popups > 0 ? 'true' : 'false') . ";\n";
	$ret .= "var \$modal_windows = " . ($use_popups == 2 ? 'true' : 'false') . ";\n";

	if ( EDITING_MODE != EDITING_MODE_BROWSE ) {
	$ret .= 'var $visible_toolbar_buttons = true' . ";\n";
	$ret .= 'var $use_toolbarlabels = ' . ($this->Application->ConfigValue('UseToolbarLabels') ? 'true' : 'false') . ";\n";;

	$ret .= "var base_url = '" . $this->Application->BaseURL() . "';" . "\n";
	$ret .= 'TB.closeHtml = \'<img src="' . $js_url . '/../img/close_window15.gif" width="15" height="15" style="border-width: 0px;" alt="close"/><br/>\';' . "\n";

	$url_params = Array ('m_theme' => '', 'pass' => 'm', 'm_opener' => 'r', '__NO_REWRITE__' => 1);
	$browse_url = $this->Application->HREF('catalog/catalog', ADMIN_DIRECTORY, $url_params, 'index.php');
	$browse_url = preg_replace('/&(admin\|editing_mode)=[\d]/', '', $browse_url);

	$admin_title = strip_tags($this->Application->Phrase('la_AdministrativeConsole', false));

	$ret .= '
	set_window_title(document.title + \' - ' . kUtil::escape($admin_title, kUtil::ESCAPE_JS) . '\');

	t = \'' . $this->Application->GetVar('t') . '\';

	if (window.parent.frames["menu"] != undefined) {
	if ( $.isFunction(window.parent.frames["menu"].SyncActive) ) {
	window.parent.frames["menu"].SyncActive("' . $browse_url . '");
	}
	}
	';
	}

	$ret .= '</script>' . "\n";

	if ( EDITING_MODE != EDITING_MODE_BROWSE ) {
	// add form, so admin scripts could work
	$ret .= '<form id="kernel_form" name="kernel_form" enctype="multipart/form-data" method="post" action="' . $browse_url . '">
	<input type="hidden" name="MAX_FILE_SIZE" id="MAX_FILE_SIZE" value="' . MAX_UPLOAD_SIZE . '" />
	<input type="hidden" name="sid" id="sid" value="' . $this->Application->GetSID() . '" />
	</form>';
	}

	return $ret;
	}

	/**
	* Prints "Edit Page" button on cms page
	*
	* @param Array $params
	* @return string
	*/
	function EditPage($params)
	{
	if ( $this->Application->GetVar('preview') ) {
	// prevents draft preview function to replace last template in session and break page/content block editing process
	$this->Application->SetVar('skip_last_template', 1);
	}

	if (!EDITING_MODE) {
	return '';
	}

	$display_mode = array_key_exists('mode', $params) ? $params['mode'] : false;
	unset($params['mode']);
	$edit_code = '';

	$page =& $this->_getPage($params);

	if (!$page->isLoaded() \|\| (($display_mode != 'end') && (EDITING_MODE == EDITING_MODE_BROWSE))) {
	// when "EditingScripts" tag is not used, make sure, that scripts are also included
	return $this->EditingScripts($params);
	}

	// show "EditPage" button only for pages, that exists in structure
	if ($display_mode != 'end') {
	$edit_btn = $edit_url = '';

	if ( EDITING_MODE == EDITING_MODE_CONTENT ) {
	$item_prefix = isset($params['item_prefix']) ? $params['item_prefix'] : '';
	unset($params['item_prefix']);

	if ( $item_prefix ) {
	$params['button_class'] = 'cms-section-properties-btn';
	$edit_btn = $this->Application->ProcessParsedTag($item_prefix, 'AdminEditButton', $params) . "\n";
	}
	else {
	$edit_btn = $this->AdminEditButton($params) . "\n"; // "st" object must be loaded before this
	}
	}
	elseif ( EDITING_MODE == EDITING_MODE_DESIGN ) {
	$url_params = Array(
	'pass' => 'm,theme,theme-file',
	'm_opener' => 'd',
	'theme_id' => $this->Application->GetVar('m_theme'),
	'theme_mode' => 't',
	'theme_event' => 'OnEdit',
	'theme-file_id' => $this->_getThemeFileId(),
	'front' => 1,
	'__NO_REWRITE__'=> 1,
	'index_file' => 'index.php',
	);

	$edit_url = $this->Application->HREF('themes/file_edit', ADMIN_DIRECTORY, $url_params);

	$button1_icon = $this->Application->BaseURL() . 'core/admin_templates/img/top_frame/icons/save_button.gif';
	$button1_title = $this->Application->Phrase('la_btn_SaveChanges', false, true);
	$button1_code = '<button style="background-image: url(' . $button1_icon . '); onclick="aTemplateManager.saveLayout(); return false;" class="cms-btn-new cms-save-layout-btn">' . $button1_title . '</button>';

	$button2_icon = $this->Application->BaseURL() . 'core/admin_templates/img/top_frame/icons/cancel_button.gif';
	$button2_title = $this->Application->Phrase('la_btn_Cancel', false, true);
	$button2_code = '<button style="background-image: url(' . $button2_icon . '); onclick="aTemplateManager.cancelLayout(); return false;" class="cms-btn-new cms-cancel-layout-btn">' . $button2_title . '</button>';

	$button3_icon = $this->Application->BaseURL() . 'core/admin_templates/img/top_frame/icons/section_properties.png';
	$button3_title = $this->Application->Phrase('la_btn_SectionTemplate', false, true);
	$button3_code = '<button style="background-image: url(' . $button3_icon . ');' . ($display_mode === false ? ' margin: 0px;' : '') . '" onclick="$form_name=\'kf_'.$page->GetID().'\'; std_edit_item(\'theme\', \'themes/file_edit\');" class="cms-btn-new cms-section-properties-btn">' . $button3_title . '</button>';

	$edit_btn .= '<div class="cms-layout-btn-container"' . ($display_mode === false ? ' style="margin: 0px;"' : '') . '>' . $button1_code . $button2_code . '</div>' . $button3_code . "\n";
	}

	if ( $display_mode == 'start' ) {
	// button with border around the page
	if ( EDITING_MODE == EDITING_MODE_CONTENT ) {
	$tabs = "\n" . str_repeat("\t", 9);
	$base_url = $this->Application->BaseURL();
	$toolbar_hidden = $this->Application->GetVar('toolbar_hidden');

	$edit_code .= '
	<div>
	<div id="cms-editing-notice">
	<div class="top">
	<a href="#" id="cms-close-editing-notice"></a>
	<span prev_editors=""></span>
	</div>
	<div class="bottom"></div>
	</div>

	<div id="cms-revision-dropdown">
	<div class="top"></div>
	<div class="bottom"></div>
	</div>
	</div>';

	if ( $this->Application->ConfigValue('EnablePageContentRevisionControl') ) {
	$edit_code .= '<div id="cms-revision-toolbar-layer"' . ($toolbar_hidden ? ' style="top: -56px;"' : '') . '>
	<div id="cms-revision-toolbar">
	<script type="text/javascript">
	var a_toolbar = new ToolBar(undefined, undefined, "' . $base_url . '#MODULE#/admin_templates/img/");
	' . $this->toolbarButton('select', 'la_ToolTip_Save', $tabs) . $this->toolbarButton('delete', 'la_ToolTip_Discard', $tabs) . $tabs . 'a_toolbar.AddButton( new ToolBarSeparator("sep1") );';

	if ( $this->Application->CheckAdminPermission('CATEGORY.REVISION.MODERATE', 0) ) {
	$edit_code .= $this->toolbarButton('approve', 'la_ToolTip_Publish', $tabs) . $this->toolbarButton('decline', 'la_ToolTip_Decline', $tabs) . $tabs . 'a_toolbar.AddButton( new ToolBarSeparator("sep2") );';
	}

	$edit_code .= $this->toolbarButton('preview', 'la_ToolTip_Preview', $tabs);

	if ( $this->Application->CheckAdminPermission('CATEGORY.REVISION.HISTORY.VIEW', 0) ) {
	$edit_code .= $this->toolbarButton('history', 'la_ToolTip_History', $tabs);
	}

	$edit_code .= $tabs . 'a_toolbar.Render();' . "\n";

	$revision = $this->Application->recallObject('page-revision.current');
	/* @var $revision kDBItem */

	$page_helper = $this->Application->recallObject('PageHelper');
	/* @var $page_helper PageHelper */

	foreach ( $page_helper->getToolbarButtonsState($revision) as $toolbar_button => $is_enabled ) {
	$edit_code .= $tabs . 'a_toolbar.SetEnabled("' . $toolbar_button . '", ' . json_encode($is_enabled) . ');';
	}

	$publishing_tools = $this->Application->Phrase('la_btn_PublishingTools', false, true);

	$edit_code .= substr($tabs, 0, -1) . '</script>

	<div id="cms-current-revision-info">
	<span class="revision-title"></span>
	<div class="draft-saved"></div>
	</div>

	<a href="#" id="cms-close-toolbar"></a>
	<div class="cms-clear"></div>
	</div>

	<a href="#" id="cms-toggle-revision-toolbar"' . ($toolbar_hidden ? '' : ' class="opened"') . '><span>' . $publishing_tools . '</span></a>
	</div>' . "\n";
	}
	}

	$edit_code .= '<div class="cms-section-properties-btn-container">' . $edit_btn . '<div class="cms-btn-content">';

	}
	else {
	// button without border around the page
	$edit_code .= $edit_btn;
	}
	}

	if ($display_mode == 'end') {
	// draw border around the page
	$edit_code .= '</div></div>';
	}

	if ($display_mode != 'end') {
	if ( EDITING_MODE == EDITING_MODE_CONTENT ) {
	$url_params = Array(
	'pass' => 'm',
	'm_opener' => 'd',
	'm_cat_id' => $page->GetID(),
	'__NO_REWRITE__'=> 1,
	'front' => 1,
	'index_file' => 'index.php',
	);

	$revision = $this->Application->GetVar('revision');

	if ( $revision ) {
	$url_params['revision'] = $revision;
	}

	$page_admin_url = $this->Application->HREF('', ADMIN_DIRECTORY, $url_params);
	$edit_code .= '<form method="POST" style="display: inline; margin: 0px" name="kf_revisions_'.$page->GetID().'" id="kf_revisions_'.$page->GetID().'" action="' . $page_admin_url . '">
	<input type="hidden" name="revision" value="' . $this->Application->GetVar('revision', 0) . '"/>
	</form>';
	}

	if ( $edit_url ) {
	$edit_code .= '<form method="POST" style="display: inline; margin: 0px" name="kf_' . $page->GetID() . '" id="kf_' . $page->GetID() . '" action="' . $edit_url . '"></form>';
	}

	// when "EditingScripts" tag is not used, make sure, that scripts are also included
	$edit_code .= $this->EditingScripts($params);
	}

	return $edit_code;
	}

	function toolbarButton($name, $title, $tabs)
	{
	$action = 'function() { aTemplateManager.revisionToolbarClick("' . $name . '"); }';
	$phrase = kUtil::escape($this->Application->Phrase($title, false, true), kUtil::ESCAPE_HTML . '+' . kUtil::ESCAPE_JS);

	return $tabs . 'a_toolbar.AddButton(new ToolBarButton("' . $name . '", "' . $phrase . '", ' . $action . '));';
	}

	function _getThemeFileId()
	{
	$template = $this->Application->GetVar('t');

	if (!$this->Application->TemplatesCache->TemplateExists($template) && !$this->Application->isAdmin) {
	$cms_handler = $this->Application->recallObject($this->Prefix . '_EventHandler');
	/* @var $cms_handler CategoriesEventHandler */

	$template = ltrim($cms_handler->GetDesignTemplate(), '/');
	}

	$file_path = dirname($template) == '.' ? '' : '/' . dirname($template);
	$file_name = basename($template);

	$sql = 'SELECT FileId
	FROM ' . TABLE_PREFIX . 'ThemeFiles
	WHERE (ThemeId = ' . (int)$this->Application->GetVar('m_theme') . ') AND (FilePath = ' . $this->Conn->qstr($file_path) . ') AND (FileName = ' . $this->Conn->qstr($file_name . '.tpl') . ')';
	return $this->Conn->GetOne($sql);
	}

	/**
	* Creates a button for editing item in Admin Console
	*
	* @param Array $params
	* @return string
	* @access protected
	*/
	protected function AdminEditButton($params)
	{
	if ( EDITING_MODE != EDITING_MODE_CONTENT ) {
	return '';
	}

	$object = $this->getObject($params);
	/* @var $object kDBItem */

	$params['item_prefix'] = 'c';

	if ( $this->Prefix == 'st' ) {
	$params['button_icon'] = 'section_properties.png';
	$params['button_class'] = 'cms-section-properties-btn';
	$params['button_title'] = 'la_btn_SectionProperties';
	}

	return parent::AdminEditButton($params);
	}

	/**
	* Builds site menu
	*
	* @param Array $params
	* @return string
	*/
	function CachedMenu($params)
	{
	$menu_helper = $this->Application->recallObject('MenuHelper');
	/* @var $menu_helper MenuHelper */

	return $menu_helper->menuTag($this->getPrefixSpecial(), $params);
	}

	/**
	* Trick to allow some kind of output formatting when using CachedMenu tag
	*
	* @param Array $params
	* @return bool
	*/
	function SplitColumn($params)
	{
	return $this->Application->GetVar($params['i']) > ceil($params['total'] / $params['columns']);
	}

	/**
	* Returns direct children count of given category
	*
	* @param Array $params
	* @return int
	*/
	function HasSubCats($params)
	{
	$sql = 'SELECT COUNT(*)
	FROM ' . TABLE_PREFIX . 'Categories
	WHERE ParentId = ' . $params['cat_id'];

	return $this->Conn->GetOne($sql);
	}

	/**
	* Prints sub-pages of given/current page.
	*
	* @param Array $params
	* @return string
	* @todo This could be reached by using "parent_cat_id" parameter. Only difference here is new block parameter "path". Need to rewrite.
	*/
	function PrintSubPages($params)
	{
	$list = $this->Application->recallObject($this->getPrefixSpecial(), $this->Prefix.'_List', $params);
	/* @var $list kDBList */

	$category_id = array_key_exists('category_id', $params) ? $params['category_id'] : $this->Application->GetVar('m_cat_id');

	$list->addFilter('current_pages', TABLE_PREFIX . 'CategoryItems.CategoryId = ' . $category_id);
	$list->Query();
	$list->GoFirst();

	$o = '';
	$block_params = $this->prepareTagParams($params);
	$block_params['name'] = $params['render_as'];

	while (!$list->EOL()) {
	$block_params['path'] = $list->GetDBField('Path');
	$o .= $this->Application->ParseBlock($block_params);

	$list->GoNext();
	}

	return $o;
	}

	/**
	* Builds link for browsing current page on Front-End
	*
	* @param Array $params
	* @return string
	*/
	function PageBrowseLink($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	$themes_helper = $this->Application->recallObject('ThemesHelper');
	/* @var $themes_helper kThemesHelper */

	$site_config_helper = $this->Application->recallObject('SiteConfigHelper');
	/* @var $site_config_helper SiteConfigHelper */

	$settings = $site_config_helper->getSettings();

	$url_params = Array (
	'm_cat_id' => $object->GetID(),
	'm_theme' => $themes_helper->getCurrentThemeId(),
	'editing_mode' => $settings['default_editing_mode'],
	'pass' => 'm',
	'admin' => 1,
	);

	if ($this->Application->ConfigValue('UseModRewrite')) {
	$url_params['__MOD_REWRITE__'] = 1;
	}
	else {
	$url_params['index_file'] = 'index.php';
	}

	return $this->Application->HREF($object->GetDBField('NamedParentPath'), '_FRONT_END_', $url_params);
	}

	/**
	* Builds a link for securely accessing a page later (even if it will not be publicly accessible)
	*
	* @param Array $params
	* @return string
	* @access protected
	*/
	protected function DirectLink($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	$themes_helper = $this->Application->recallObject('ThemesHelper');
	/* @var $themes_helper kThemesHelper */

	$url_params = Array (
	'm_cat_id' => $object->GetID(),
	'm_theme' => $themes_helper->getCurrentThemeId(),
	'pass' => 'm',
	'authkey' => $object->GetDBField('DirectLinkAuthKey'),
	'__SSL__' => 0,
	'__NO_SID__' => 0,
	);

	if ($this->Application->ConfigValue('UseModRewrite')) {
	$url_params['__MOD_REWRITE__'] = 1;
	}
	else {
	$url_params['index_file'] = 'index.php';
	}

	return $this->Application->HREF($object->GetDBField('NamedParentPath'), '_FRONT_END_', $url_params);
	}

	/**
	* Builds link to category as a cms page
	*
	* @param Array $params
	* @return string
	*/
	function ContentPageLink($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	$params['t'] = mb_strtolower($object->GetDBField('NamedParentPath'));
	$params['m_cat_id'] = 0;

	return $this->Application->ProcessParsedTag('m', 'Link', $params);
	}

	/**
	* Prepares cms page description for search result page
	*
	* @param Array $params
	* @return string
	*/
	function SearchDescription($params)
	{
	$object = $this->getObject($params);
	$desc = $object->GetField('MetaDescription');
	if (!$desc) {
	$sql = 'SELECT *
	FROM ' . TABLE_PREFIX . 'PageContent
	WHERE PageId = ' . $object->GetID() . ' AND ContentNum = 1';
	$content = $this->Conn->GetRow($sql);

	if ($content['l'.$this->Application->GetVar('m_lang').'_Content']) {
	$desc = $content['l'.$this->Application->GetVar('m_lang').'_Content'];
	}
	else {
	$desc = $content['l'.$this->Application->GetDefaultLanguageId().'_Content'];
	}
	}

	return mb_substr($desc, 0, 300).(mb_strlen($desc) > 300 ? '...' : '');
	}

	/**
	* Simplified version of "c:CategoryLink" for "c:PrintList"
	*
	* @param Array $params
	* @return string
	* @todo Used? Needs refactoring.
	*/
	function EnterCatLink($params)
	{
	$object = $this->getObject($params);

	$url_params = Array ('pass' => 'm', 'm_cat_id' => $object->GetID());
	return $this->Application->HREF($params['template'], '', $url_params);
	}

	/**
	* Simplified version of "c:CategoryPath", that do not use blocks for rendering
	*
	* @param Array $params
	* @return string
	* @todo Used? Maybe needs to be removed.
	*/
	function PagePath($params)
	{
	$object = $this->getObject($params);
	$path = $object->GetField('CachedNavbar');
	if ($path) {
	$items = explode('&\|&', $path);
	array_shift($items);
	return implode(' -> ', $items);
	}

	return '';
	}

	/**
	* Returns configuration variable value
	*
	* @param Array $params
	* @return string
	* @todo Needs to be replaced with "m:GetConfig" tag; Not used now (were used on structure_edit.tpl).
	*/
	function AllowManualFilenames($params)
	{
	return $this->Application->ConfigValue('ProjCMSAllowManualFilenames');
	}

	/**
	* Draws path to current page (each page can be link to it)
	*
	* @param Array $params
	* @return string
	*/
	function CurrentPath($params)
	{
	$block_params = $this->prepareTagParams($params);
	$block_params['name'] = $block_params['render_as'];

	$object = $this->Application->recallObject($this->Prefix);
	/* @var $object kDBItem */

	$category_ids = explode('\|', substr($object->GetDBField('ParentPath'), 1, -1));

	$id_field = $this->Application->getUnitOption($this->Prefix, 'IDField');
	$table_name = $this->Application->getUnitOption($this->Prefix, 'TableName');

	$language = (int)$this->Application->GetVar('m_lang');

	if (!$language) {
	$language = 1;
	}

	$sql = 'SELECT l'.$language.'_Name AS Name, NamedParentPath
	FROM '.$table_name.'
	WHERE '.$id_field.' IN ('.implode(',', $category_ids).')';
	$categories_data = $this->Conn->Query($sql);

	$ret = '';
	foreach ($categories_data as $index => $category_data) {
	if ($category_data['Name'] == 'Content') {
	continue;
	}
	$block_params['title'] = $category_data['Name'];
	$block_params['template'] = preg_replace('/^Content\//i', '', $category_data['NamedParentPath']);
	$block_params['is_first'] = $index == 1; // because Content is 1st element
	$block_params['is_last'] = $index == count($categories_data) - 1;

	$ret .= $this->Application->ParseBlock($block_params);
	}

	return $ret;
	}

	/**
	* Synonim to PrintList2 for "onlinestore" theme
	*
	* @param Array $params
	* @return string
	*/
	function ListPages($params)
	{
	return $this->PrintList2($params);
	}

	/**
	* Returns information about parser element locations in template
	*
	* @param Array $params
	* @return mixed
	*/
	function BlockInfo($params)
	{
	if (!EDITING_MODE) {
	return '';
	}

	$template_helper = $this->Application->recallObject('TemplateHelper');
	/* @var $template_helper TemplateHelper */

	return $template_helper->blockInfo( $params['name'] );
	}

	/**
	* Hide all editing tabs except permission tab, when editing "Home" (ID = 0) category
	*
	* @param Array $params
	*/
	function ModifyUnitConfig($params)
	{
	$root_category = $this->Application->RecallVar('IsRootCategory_' . $this->Application->GetVar('m_wid'));
	if (!$root_category) {
	return ;
	}

	$edit_tab_presets = $this->Application->getUnitOption($this->Prefix, 'EditTabPresets');
	$edit_tab_presets['Default'] = Array (
	'permissions' => $edit_tab_presets['Default']['permissions'],
	);
	$this->Application->setUnitOption($this->Prefix, 'EditTabPresets', $edit_tab_presets);
	}

	/**
	* Prints catalog export templates
	*
	* @param Array $params
	* @return string
	*/
	function PrintCatalogExportTemplates($params)
	{
	$prefixes = explode(',', $params['prefixes']);

	$ret = Array ();
	foreach ($prefixes as $prefix) {
	if ($this->Application->prefixRegistred($prefix)) {
	$module_path = $this->Application->getUnitOption($prefix, 'ModuleFolder') . '/';
	$module_name = $this->Application->findModule('Path', $module_path, 'Name');

	$ret[$prefix] = mb_strtolower($module_name) . '/export';
	}
	}

	$json_helper = $this->Application->recallObject('JSONHelper');
	/* @var $json_helper JSONHelper */

	return $json_helper->encode($ret);
	}

	/**
	* Checks, that "view in browse mode" functionality available
	*
	* @param Array $params
	* @return bool
	*/
	function BrowseModeAvailable($params)
	{
	$valid_special = $params['Special'] != 'user';
	$not_selector = $this->Application->GetVar('type') != 'item_selector';

	return $valid_special && $not_selector;
	}

	/**
	* Returns a link for editing product
	*
	* @param Array $params
	* @return string
	*/
	function ItemEditLink($params)
	{
	$object = $this->getObject($params);
	/* @var $object kDBList */

	$edit_template = $this->Application->getUnitOption($this->Prefix, 'AdminTemplatePath') . '/' . $this->Application->getUnitOption($this->Prefix, 'AdminTemplatePrefix') . 'edit';

	$url_params = Array (
	'm_opener' => 'd',
	$this->Prefix.'_mode' => 't',
	$this->Prefix.'_event' => 'OnEdit',
	$this->Prefix.'_id' => $object->GetID(),
	'm_cat_id' => $object->GetDBField('ParentId'),
	'pass' => 'all,'.$this->Prefix,
	'no_pass_through' => 1,
	);

	return $this->Application->HREF($edit_template,'', $url_params);
	}

	function RelevanceIndicator($params)
	{
	/** @var kDBItem $object */
	$object = $this->getObject($params);

	/** @var kSearchHelper $search_helper */
	$search_helper = $this->Application->recallObject('SearchHelper');

	$search_results_table = $search_helper->getSearchTable();
	$sql = 'SELECT Relevance
	FROM ' . $search_results_table . '
	WHERE ResourceId = ' . $object->GetDBField('ResourceId');

	$percents_off = (int)(100 - (100 * $this->Conn->GetOne($sql)));
	$percents_off = ($percents_off < 0) ? 0 : $percents_off;
	if ($percents_off) {
	$params['percent_off'] = $percents_off;
	$params['percent_on'] = 100 - $percents_off;
	$params['name'] = $this->SelectParam($params, 'relevance_normal_render_as,block_relevance_normal');
	}
	else {
	$params['name'] = $this->SelectParam($params, 'relevance_full_render_as,block_relevance_full');
	}
	return $this->Application->ParseBlock($params);
	}

	/**
	* Returns list of categories, that have category add/edit permission
	*
	* @param Array $params
	* @return string
	*/
	function AllowedCategoriesJSON($params)
	{
	if ($this->Application->RecallVar('user_id') == USER_ROOT) {
	$categories = true;
	}
	else {
	$object = $this->getObject($params);
	/* @var $object kDBItem */

	$perm_helper = $this->Application->recallObject('PermissionsHelper');
	/* @var $perm_helper kPermissionsHelper */

	$perm_prefix = $this->Application->getUnitOption($this->Prefix, 'PermItemPrefix');
	$categories = $perm_helper->getPermissionCategories($perm_prefix . '.' . ($object->IsNewItem() ? 'ADD' : 'MODIFY'));
	}

	$json_helper = $this->Application->recallObject('JSONHelper');
	/* @var $json_helper JSONHelper */

	return $json_helper->encode($categories);
	}

	function PageEditable($params)
	{
	if ($this->Application->isDebugMode()) {
	return true;
	}

	$object = $this->getObject($params);
	/* @var $object kDBItem */

	return !$object->GetDBField('Protected');
	}

	/**
	* Returns element for "__item__" navigation bar part
	*
	* @param Array $params
	* @return string
	* @access protected
	*/
	protected function CategoryItemElement($params)
	{
	$category_helper = $this->Application->recallObject('CategoryHelper');
	/* @var $category_helper CategoryHelper */

	$navigation_bar = $this->Application->recallObject('kNavigationBar');
	/* @var $navigation_bar kNavigationBar */

	$category_id = isset($params['cat_id']) ? $params['cat_id'] : $this->Application->GetVar('m_cat_id');
	$parent_path = explode('\|', substr($navigation_bar->getParentPath($category_id), 1, -1));
	array_shift($parent_path); // remove "Content" category
	$module_info = $category_helper->getCategoryModule($params, $parent_path);

	if ( !$module_info ) {
	return '';
	}

	$module_prefix = $module_info['Var'];

	$object = $this->Application->recallObject($module_prefix);
	/* @var $object kCatDBItem */

	$title_field = $this->Application->getUnitOption($module_prefix, 'TitleField');
	$block_params = $this->prepareTagParams($params);
	$block_params['name'] = $params['render_as'];

	$block_params['title'] = $object->GetField($title_field);
	$block_params['prefix'] = $module_prefix;

	return $this->Application->ParseBlock($block_params);
	}
	}

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