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<?php
/**
* @package GWE Systems
* @subpackage System.Gwejson
*
* @copyright Copyright (C) 2015 - 2025 GWE Systems Ltd. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined( 'JPATH_BASE' ) or die;
use Joomla\CMS\Factory;
use Joomla\Filesystem\Folder;
use Joomla\CMS\Filter\InputFilter;
use Joomla\CMS\Router\Route;
use Joomla\CMS\Uri\Uri;
use Joomla\CMS\Plugin\CMSPlugin;
use Joomla\CMS\Session\Session;
use Joomla\Filesystem\File;
/*
if (defined('_SC_START')){
list ($usec, $sec) = explode(" ", microtime());
$time_end = (float) $usec + (float) $sec;
echo "Executed in ". round($time_end - _SC_START, 4)."<Br/>";
}
*/
/**
* System plugin to execute JSON requests without the overhead of full Joomla infrastructure being loaded
* For best performance should be the first plugin to run
*
* @since 2.5
*/
#[\AllowDynamicProperties]
class PlgSystemGwejson extends CMSPlugin {
public function __construct( &$subject, $config ) {
parent::__construct( $subject, $config );
$input = Factory::getApplication()->input;
$task = $input->get( 'task', $input->get( 'typeaheadtask', '', 'cmd' ), 'cmd' );
if ( $task != "gwejson" )
{
return true;
}
/*
* In Joomla 4
*
* We need
* Factory::getApplication()->loadDocument();
* because
* Factory::getApplication()->getDocument();
* can return a null e.g. from modules loaded by removeLoader module
*
*/
if ( version_compare( JVERSION, "4", "gt" ) )
{
Factory::getApplication()->loadDocument();
}
// Some plugins set the document type too early which messes up our ouput.
$this->doc = Factory::getDocument();
}
/**
* Method to catch the onAfterInitialise event.
*
* @return boolean True on success
*
*/
public
function onAfterInitialise() {
$input = Factory::getApplication()->input;
$task = $input->get( 'task', $input->get( 'typeaheadtask', '', 'cmd' ), 'cmd' );
// in frontend SEF
if ( $task != "gwejson" )
{
return true;
}
$file = $input->get( 'file', '', 'cmd' );
// Library file MUST start with "gwejson_" for security reasons to stop other files being included maliciously
if ( $file == "" )
{
return true;
}
if ( strpos( $file, "gwejson_" ) !== 0 )
{
$file = "gwejson_" . $file;
}
$path = $input->get( 'path', 'site', 'cmd' );
$paths = array( "site" => JPATH_SITE,
"admin" => JPATH_ADMINISTRATOR,
"plugin" => JPATH_SITE . "/plugins",
"module" => JPATH_SITE . "/modules",
"library" => JPATH_LIBRARIES
);
if ( ! in_array( $path, array_keys( $paths ) ) )
{
return true;
}
$folder = $input->get( 'folder', '', 'string' );
if ( $path == "plugin" )
{
$plugin = $input->get( 'plugin', '', 'string' );
if ( $folder == "" || $plugin == "" )
{
return true;
}
$path = $paths[$path] . "/$folder/$plugin/";
}
else if ( $path == "module" || $path == "library" )
{
if ( $folder == "" )
{
return true;
}
$path = $paths[$path] . "/$folder/";
}
else
{
$extension = $input->get( 'option', $input->get( 'ttoption', '', 'cmd' ), 'cmd' );
if ( $extension == "" )
{
return true;
}
if ( $folder == "" )
{
$path = $paths[$path] . "/components/$extension/libraries/";
}
else
{
$path = $paths[$path] . "/components/$extension/$folder/";
}
}
// Check for a custom version of the file first!
$custom_file = str_replace( "gwejson_", "gwejson_custom_", $file );
if ( file_exists( $path . $custom_file . ".php" ) )
{
$file = $custom_file;
}
if ( ! file_exists( $path . $file . ".php" ) )
{
PlgSystemGwejson::throwerror( "Whoops we could not find the action file" );
return true;
}
include_once( $path . $file . ".php" );
if ( ! function_exists( "gwejson_skiptoken" ) || ! gwejson_skiptoken() )
{
$token = Session::getFormToken();;
if ( $token != $input->get( 'token', '', 'string' ) )
{
if ( $input->get( 'json', '', 'raw' ) )
{
}
PlgSystemGwejson::throwerror( "There was an error - bad token. Please refresh the page and try again." );
}
}
// we don't want any modules etc.
//$input->set('tmpl', 'component');
$input->set( 'format', 'json' );
ini_set( "display_errors", 0 );
// When setting typeahead in the post it overrides the GET value which the prepare function doesn't replace for some reason :(
if ( $input->get( 'typeahead', '', 'string' ) != "" || $input->get( 'prefetch', 0, 'int' ) )
{
try
{
$requestObject = new stdClass();
$requestObject->typeahead = $input->get( 'typeahead', '', 'string' );
// Needed for PHP 8
$data = new stdClass();
$data = ProcessJsonRequest( $requestObject, $data );
}
catch ( Exception $e )
{
//PlgSystemGwejson::throwerror("There was an exception ".$e->getMessage()." ".var_export($e->getTrace()));
PlgSystemGwejson::throwerror( "There was an exception " . addslashes( $e->getMessage() ) );
}
}
// Get JSON data
else if ( $input->get( 'json', '', 'raw' ) )
{
// Create JSON data structure
$data = new stdClass();
$data->error = 0;
$data->result = "ERROR";
$data->user = "";
$requestData = $input->get( 'json', '', 'raw' );
if ( isset( $requestData ) )
{
try
{
if ( ini_get( "magic_quotes_gpc" ) )
{
$requestData = stripslashes( $requestData );
}
$requestObject = json_decode( $requestData, 0 );
if ( ! $requestObject )
{
$requestObject = json_decode( utf8_encode( $requestData ), 0 );
}
}
catch ( Exception $e )
{
PlgSystemGwejson::throwerror( "There was an exception" );
}
if ( ! $requestObject )
{
//file_put_contents(dirname(__FILE__) . "/cache/error.txt", var_export($requestData, true));
PlgSystemGwejson::throwerror( "There was an error - no request object " );
}
else if ( isset( $requestObject->error ) && $requestObject->error )
{
PlgSystemGwejson::throwerror( "There was an error - Request object error " . $requestObject->error );
}
else
{
try
{
$data = ProcessJsonRequest( $requestObject, $data );
}
catch ( Exception $e )
{
//PlgSystemGwejson::throwerror("There was an exception ".$e->getMessage()." ".var_export($e->getTrace()));
PlgSystemGwejson::throwerror( "There was an exception " . $e->getMessage() );
}
}
}
else
{
PlgSystemGwejson::throwerror( "Invalid Input" );
}
}
else
{
PlgSystemGwejson::throwerror( "There was an error - no request data" );
}
header( "Content-Type: application/javascript; charset=utf-8" );
if ( is_object( $data ) )
{
if ( defined( '_SC_START' ) )
{
list ( $usec, $sec ) = explode( " ", microtime() );
$time_end = (float) $usec + (float) $sec;
$data->timing = round( $time_end - _SC_START, 4 );
}
else
{
$data->timing = 0;
}
}
// Must suppress any error messages
@ob_end_clean();
echo json_encode( $data );
exit();
}
public static function throwerror( $msg ) {
$data = new stdClass();
//"document.getElementById('products').innerHTML='There was an error - no valid argument'");
$data->error = "alert('" . $msg . "')";
$data->result = "ERROR";
$data->user = "";
header( "Content-Type: application/javascript" );
// Must suppress any error messages
@ob_end_clean();
echo json_encode( $data );
exit();
}
// Mechanism to inject theme specific config options into module and menu item config
// Problem is that the fields are not dynamically loaded when you change the theme
public function onContentPrepareForm( $form, $data ) {
$input = Factory::getApplication()->input;
$inputFormData = $input->post->get( 'jform', [], 'array' );
// this doesn't work yet since there is no way to inject filtering into the category model
if ( false && $form->getName() === "com_categories.categories.jevents.filter" && Factory::getApplication()->isClient( 'administrator' ) )
{
$jeventsCategoriesFilters = Folder::files( JPATH_ADMINISTRATOR . "/components/com_jevents/models/forms/", 'filter_categories.xml', true, true );
foreach ( $jeventsCategoriesFilters as $jeventsCategoriesFilter )
{
$form->loadFile( $jeventsCategoriesFilter, false );
}
}
else if ( ( $form->getName() === "com_menus.item" && isset( $data->link ) && strpos( $data->link, "com_jevents&" ) > 0 )
|| ( $form->getName() === "com_modules.module" &&
( isset( $data->module ) && $data->module == "mod_jevents_latest" ) || ( isset( $inputFormData["module"] ) && $inputFormData["module"] == "mod_jevents_latest" ) )
)
{
if ( Factory::getApplication()->isClient( 'administrator' ) )
{
$menuConfigFiles = Folder::files( JPATH_SITE . "/components/com_jevents/views/", 'menuconfig.xml', true, true );
foreach ( $menuConfigFiles as $menuConfigFile )
{
$theme = basename( dirname( $menuConfigFile ) );
$langfile = 'files_jevents' . str_replace( 'files_', '', strtolower( InputFilter::getInstance()->clean( (string) $theme, 'cmd' ) ) ) . "layout";
$lang = Factory::getLanguage();
$lang->load( $langfile, JPATH_SITE, null, false, true );
$form->loadFile( $menuConfigFile, false );
}
}
$afterfields = $form->getXml()->xpath( '//*[@after]' );
foreach ( $afterfields as $afterfield )
{
$field1Xml = $form->getFieldXml( $afterfield->attributes()->name, $afterfield->attributes()->thisgroup );
$field2Xml = $form->getFieldXml( $afterfield->attributes()->after, $afterfield->attributes()->aftergroup );
if ( $field1Xml && $field2Xml )
{
$followingField = dom_import_simplexml( $field1Xml );
$fieldToFollow = dom_import_simplexml( $field2Xml );
if ( $fieldToFollow && $followingField )
{
if ( $fieldToFollow->nextSibling )
{
$x = $fieldToFollow->parentNode->insertBefore( $followingField, $fieldToFollow->nextSibling );
}
else
{
$x = $fieldToFollow->parentNode->appendChild( $followingField );
}
}
}
}
}
}
public
function onAfterRender() {
if ( version_compare( JVERSION, '4.0.0', 'ge' ) )
{
$document = Factory::getApplication()->getDocument();
$wa = $document->getWebAssetManager();
$scripts = $wa->getAssets( 'script' );
}
}
// Experiment in manipulation of Joomla backend menu
public function XXXonPreprocessMenuItems( $context, &$items, $params = null, $enabled = true ) {
if ( version_compare( JVERSION, '4.0.0', 'ge' ) && Factory::getApplication()->isClient( 'administrator' ) && Factory::getApplication()->input->get( 'option' ) == "com_jevents" )
{
$user = Factory::getUser();
$jeventsItems = GslHelper::getLeftIconLinks();
$cloneRoot = false;
foreach ( $items as $i => $item )
{
if ( $item->element == 'com_jevents' && $item->level == 1 )
{
if ( $item->hasChildren() )
{
$children = $items[$i]->getChildren();
foreach ( $children as $child )
{
if ( ! $cloneRoot )
{
$cloneRoot = clone $child;
}
else
{
// $item->removeChild($child);
}
if ( strpos( $child->link, "redirect.com_jevlocations" ) > 0 )
{
$child->link = "index.php?option=com_jevlocations";
}
else if ( strpos( $child->link, "redirect.com_rsvppro" ) > 0 )
{
$child->link = "index.php?option=com_rsvppro";
}
else if ( strpos( $child->link, "redirect.com_jeventstags" ) > 0 )
{
$child->link = "index.php?option=com_jeventstags";
}
else if ( strpos( $child->link, "redirect.com_jevpeople" ) > 0 )
{
$child->link = "index.php?option=com_jevpeople";
}
else if ( strpos( $child->link, "redirect.com_categories" ) > 0 )
{
$child->link = "index.php?option=com_categories&view=categories&extension=com_jevents";
}
}
}
foreach ( $jeventsItems as $jeventsItem )
{
if ( strpos( $jeventsItem->link, "com_yoursites" ) > 0 )
{
continue;
}
if ( strpos( $jeventsItem->icon, "joomla" ) === 0 )
{
continue;
}
$matched = false;
foreach ( $children as $child )
{
if ( $jeventsItem->link == Route::_( $child->link, true ) )
{
$child->title = $jeventsItem->label;
ob_start();
if ( ! empty( $jeventsItem->icon ) )
{
?><span data-gsl-icon='icon: <?php echo $jeventsItem->icon; ?>'
class='gsl-margin-small-right me-2'></span><?php
}
else if ( ! empty( $jeventsItem->iconSrc ) )
{
?><span class='gsl-margin-small-right me-2'><img
src='<?php echo $jeventsItem->iconSrc; ?>'/></span><?php
}
$icon = ob_get_clean();
$icon = "<span aria-hidden='true' class='icon-fw icon-puzzle'></span>";
$child->title = $icon . $child->title;
// no use on child menu items!
//$child->class = "class:puzzle";
$matched = true;
break;
}
$x = 1;
}
if ( ! $matched )
{
$newClone = clone $cloneRoot;
$newClone->title = $jeventsItem->label;
$newClone->link = Uri::getInstance( $jeventsItem->link );
$newClone->link = "index.php" . $newClone->link->toString( [ 'query' ] );
$items[$i]->addChild( $newClone );
}
}
}
}
}
}
}