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<?php
/**
* SEF component for Joomla! 1.5
*
* @author ARTIO s.r.o.
* @copyright ARTIO s.r.o., http://www.artio.cz
* @package JoomSEF
* @version 3.1.0
*/
// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die();
jimport('joomla.application.component.model');
class SEFModelExtensions extends JModel
{
var $_extensions;
var $_components;
var $_componentsNoExt;
var $_newVersions;
function __construct()
{
parent::__construct();
}
function getExtensions()
{
if( !isset($this->_extensions) ) {
// Try to get the newest versions information from upgrade server
$this->_loadNewVersions();
$path = JPATH_ROOT.DS.'components'.DS.'com_sef'.DS.'sef_ext';
$xmlfiles = JFolder::files($path, '.xml$');
$exts = array();
if( is_array($xmlfiles) && (count($xmlfiles) > 0) ) {
foreach($xmlfiles as $file) {
$manifest = $this->_isManifest($path.DS.$file);
if( !is_null($manifest) ) {
$ext = new stdClass();
$ext->id = $file;
// Remove the .xml extension
$ext->option = substr($file, 0, -4);
$ext->component = $this->_getComponent($ext->option);
$root =& $manifest->document;
$element = &$root->getElementByPath('name');
$ext->name = $element ? $element->data() : '';
$element = &$root->getElementByPath('creationdate');
$ext->creationdate = $element ? $element->data() : '';
$element = &$root->getElementByPath('author');
$ext->author = $element ? $element->data() : '';
$element = &$root->getElementByPath('copyright');
$ext->copyright = $element ? $element->data() : '';
$element = &$root->getElementByPath('authoremail');
$ext->authorEmail = $element ? $element->data() : '';
$element = &$root->getElementByPath('authorurl');
$ext->authorUrl = $element ? $element->data() : '';
$element = &$root->getElementByPath('version');
$ext->version = $element ? $element->data() : '';
if( isset($this->_newVersions[$ext->option]) ) {
$ext->newestVersion = $this->_newVersions[$ext->option]->version;
$ext->type = $this->_newVersions[$ext->option]->type;
}
else {
$ext->newestVersion = null;
$ext->type = null;
}
// Load parameters
$ext->params =& SEFTools::getExtParams($ext->option);
// Active handler
$ext->handler = $this->_getActiveHandler($ext->option);
$exts[$ext->option] = $ext;
}
}
}
$this->_extensions = $exts;
}
return $this->_extensions;
}
function getComponentsWithoutExtension()
{
if( !isset($this->_componentsNoExt) ) {
$this->_loadComponents();
$this->getExtensions();
$this->_loadNewVersions();
$this->_componentsNoExt = array();
// Loop through the components and find those without installed extension
if( is_array($this->_components) && (count($this->_components) > 0) ) {
foreach($this->_components as $component) {
if( isset($this->_extensions[$component->option]) ) {
continue;
}
$cmp = new stdClass();
$cmp = $component;
if( isset($this->_newVersions[$cmp->option]) ) {
$cmp->extType = $this->_newVersions[$cmp->option]->type;
$cmp->extVersion = $this->_newVersions[$cmp->option]->version;
$cmp->extLink = $this->_newVersions[$cmp->option]->link;
}
else {
$cmp->extType = null;
$cmp->extVersion = null;
$cmp->extLink = null;
}
// Load component parameters
$cmp->params =& SEFTools::getExtParams($cmp->option);
// Active handler
$cmp->handler = $this->_getActiveHandler($cmp->option);
$this->_componentsNoExt[$cmp->option] = $cmp;
}
}
}
return $this->_componentsNoExt;
}
function &_isManifest($file)
{
// Initialize variables
$null = null;
$xml =& JFactory::getXMLParser('Simple');
// If we cannot load the xml file return null
if (!$xml->loadFile($file)) {
// Free up xml parser memory and return null
unset ($xml);
return $null;
}
/*
* Check for a valid XML root tag.
*/
$root =& $xml->document;
if( !is_object($root) ||
($root->name() != 'install') ||
version_compare($root->attributes('version'), '1.5', '<') ||
($root->attributes('type') != 'sef_ext') )
{
// Free up xml parser memory and return null
unset ($xml);
return $null;
}
// Valid manifest file return the object
return $xml;
}
function _loadComponents()
{
if( isset($this->_components) ) {
return;
}
$db =& JFactory::getDBO();
$query = "SELECT `name`, `option` FROM `#__components` WHERE (`parent` = '0') AND (`option` != '') ORDER BY `name`";
$db->setQuery($query);
$this->_components = $db->loadObjectList('option');
// Remove the standard Joomla components
$remove = array('com_sef', 'com_cache', 'com_config', 'com_cpanel', 'com_installer', 'com_joomfish', 'com_languages', 'com_massmail', 'com_media', 'com_menus', 'com_messages', 'com_modules', 'com_plugins', 'com_templates');
foreach($remove as $r)
{
if( isset($this->_components[$r]) ) {
unset($this->_components[$r]);
}
}
}
function _getComponent($option)
{
$this->_loadComponents();
if( isset($this->_components[$option]) ) {
return $this->_components[$option];
}
return null;
}
function _loadNewVersions()
{
if( isset($this->_newVersions) ) {
return;
}
$upgradeModel =& JModel::getInstance('Upgrade', 'SEFModel');
$this->_newVersions =& $upgradeModel->getVersions();
}
function _getActiveHandler($option)
{
$params =& SEFTools::getExtParams($option);
$handler = $params->get('handling', '0');
switch($handler)
{
case '0':
$compExt = JFile::exists(JPATH_ROOT.DS.'components'.DS.$option.DS.'router.php');
$ownExt = JFile::exists(JPATH_ROOT.DS.'components'.DS.'com_sef'.DS.'sef_ext'.DS.$option.'.php');
if( $compExt && !$ownExt ) {
return JText::_('Component\'s router');
}
else if( $ownExt ) {
return JText::_('JoomSEF extension');
}
else {
return JText::_('JoomSEF default handler');
}
break;
case '1':
return JText::_('Default Joomla! router');
break;
case '2':
return JText::_('Not using SEF');
break;
}
}
}
?>