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<?php
/*
** Copyright (C) 2001-2025 Zabbix SIA
**
** This program is free software: you can redistribute it and/or modify it under the terms of
** the GNU Affero General Public License as published by the Free Software Foundation, version 3.
**
** 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 Affero General Public License for more details.
**
** You should have received a copy of the GNU Affero General Public License along with this program.
** If not, see <https://www.gnu.org/licenses/>.
**/
class CUrlFactory {
/**
* Configuration of context configurations. Top-level key is file name from $page['file'], below goes:
* 'remove' - to remove arguments
* 'add' - name of $_REQUEST keys to be kept as arguments
* 'callable' - callable to apply to argument list
*
* @var array
*/
protected static $contextConfigs = [
'graphs.php' => [
'remove' => ['graphid'],
'add' => ['hostid', 'parent_discoveryid']
],
'host_discovery.php' => [
'remove' => ['itemid'],
'add' => ['hostid']
],
'host_prototypes.php' => [
'remove' => ['hostid'],
'add' => ['parent_discoveryid']
],
'httpconf.php' => [
'remove' => ['httptestid']
],
'sysmaps.php' => [
'remove' => ['sysmapid']
],
'__default' => [
'remove' => ['cancel', 'form', 'delete']
]
];
/**
* Creates new CUrl object based on giver URL (or $_REQUEST if null is given),
* and adds/removes parameters based on current page context.
*
* @param string $sourceUrl
*
* @return CUrl
*/
public static function getContextUrl($sourceUrl = null) {
$config = self::resolveConfig();
$url = new CUrl($sourceUrl);
if (isset($config['remove'])) {
foreach ($config['remove'] as $key) {
$url->removeArgument($key);
}
}
if (isset($config['add'])) {
foreach ($config['add'] as $key) {
$url->setArgument($key, getRequest($key));
}
}
return $url;
}
/**
* Resolves context configuration for current file (based on $page['file'] global variable)
*
* @return array
*/
protected static function resolveConfig() {
global $page;
if (isset($page['file']) && isset(self::$contextConfigs[$page['file']])) {
return array_merge_recursive(self::$contextConfigs['__default'], self::$contextConfigs[$page['file']]);
}
return self::$contextConfigs['__default'];
}
}
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