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<?php
/**
* Kunena Component
* @package Kunena.Framework
* @subpackage Route
*
* @copyright (C) 2008 - 2014 Kunena Team. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
* @link http://www.kunena.org
**/
defined ( '_JEXEC' ) or die ();
jimport('joomla.environment.uri');
jimport('joomla.html.parameter');
jimport('joomla.filter.output');
KunenaRoute::initialize();
/**
* Class KunenaRoute
*/
abstract class KunenaRoute {
// List of views: array of default variable=>value pairs, which can be removed from URI
static $views = array (
'announcement'=>array('layout'=>'default'),
'category'=>array('layout'=>'default', 'catid'=>'0'),
'common'=>array('layout'=>'default'),
'credits'=>array('layout'=>'default'),
'home'=>array(),
'misc'=>array('layout'=>'default'),
'search'=>array('layout'=>'default'),
'statistics'=>array('layout'=>'default'),
'topic'=>array('layout'=>'default'),
'topics'=>array('layout'=>'default'),
'user'=>array('layout'=>'default', 'userid'=>'0'),
);
// Reserved layout names for category view
static $layouts = array ('create'=>1, 'default'=>1, 'edit'=>1, 'manage'=>1, 'moderate'=>1, 'user'=>1);
// Use category name only in these views
static $sefviews = array (''=>1, 'home'=>1, 'category'=>1, 'topic'=>1);
static $parsevars = array ('do'=>1, 'task'=>1, 'mode'=>1, 'catid'=>1, 'id'=>1, 'mesid'=>1, 'userid'=>1, 'page'=>1, 'sel'=>1 );
static $time = 0;
static $adminApp = false;
static $config = false;
static $menus = false;
static $menu = false;
static $default = false;
static $active = null;
static $home = false;
static $search = false;
static $current = null;
static $childlist = false;
static $subtree = array();
static $parent = array();
static $uris = array();
static $urisSave = false;
static protected $filtered = array();
public static function current($object = false) {
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
$uri = self::prepare();
if (!$uri) return false;
if ($object) return $uri;
$result = $uri->getQuery ();
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return $result;
}
public static function getItemID($uri = null) {
if (self::$adminApp) {
// There are no itemids in administration
return 0;
}
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
$uri = self::prepare($uri);
if (!$uri) return false;
if (!$uri->getVar('Itemid')) {
self::setItemID ( $uri );
}
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return $uri->getVar('Itemid');
}
public static function _($uri = null, $xhtml = true, $ssl=0) {
if (self::$adminApp) {
if ($uri instanceof JUri) $uri = $uri->toString ();
if (substr($uri, 0, 14) == 'administrator/') {
// Use default routing in administration
return JRoute::_(substr($uri, 14), $xhtml, $ssl);
} else {
return JUri::root(true)."/{$uri}";
}
}
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
$key = (self::$home ? self::$home->id : 0) .'-'.(int)$xhtml.(int)$ssl. ($uri instanceof JUri ? $uri->toString () : (string) $uri);
if (!$uri || (is_string($uri) && $uri[0]=='&')) {
$key = 'a'.(self::$active ? self::$active->id : '') . '-' . $key;
}
if (isset(self::$uris[$key])) {
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return self::$uris[$key];
}
$uri = self::prepare($uri);
if (!$uri) {
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return false;
}
if (!$uri->getVar('Itemid')) {
self::setItemID ( $uri );
}
$fragment = $uri->getFragment();
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'(t)') : null;
self::$uris[$key] = JRoute::_ ( 'index.php?' . $uri->getQuery (), $xhtml, $ssl ) . ($fragment ? '#'.$fragment : '');
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'(t)') : null;
self::$urisSave = true;
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return self::$uris[$key];
}
/**
* @param JUri $uri
* @param bool $object
*
* @return JUri|string
*/
public static function normalize($uri = null, $object = false) {
if (self::$adminApp) {
// Use default routing in administration
return $object ? $uri : 'index.php?' . $uri->getQuery ();
}
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
$uri = self::prepare($uri);
if (!$uri) return false;
if (!$uri->getVar('Itemid')) {
self::setItemID ( $uri );
}
$result = $object ? $uri : 'index.php?' . $uri->getQuery ();
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return $result;
}
public static function getMenu() {
return self::$home;
}
public static function getHome($item) {
if (!$item) return null;
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
$id = $item->id;
if (!isset(self::$parent[$id])) {
if ($item->type == 'component' && $item->component == 'com_kunena' && isset($item->query['view']) && $item->query['view'] == 'home') {
self::$parent[$id] = $item;
} else {
$parentid = $item->parent_id;
$parent = isset(self::$menu[$parentid]) ? self::$menu[$parentid] : null;
self::$parent[$id] = self::getHome($parent);
}
}
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return self::$parent[$id];
}
public static function cacheLoad() {
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
$user = KunenaUserHelper::getMyself();
$cache = self::getCache();
// TODO: can use viewlevels instead of userid
// FIXME: enable caching after fixing the issues
$data = false; // $cache->get($user->userid, 'com_kunena.route');
if ($data !== false) {
list(self::$subtree, self::$uris) = unserialize($data);
}
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
}
public static function cacheStore() {
if (!self::$urisSave) return;
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
$user = KunenaUserHelper::getMyself();
$data = array(self::$subtree, self::$uris);
$cache = self::getCache();
// TODO: can use viewlevels instead of userid
// FIXME: enable caching after fixing the issues
//$cache->store(serialize($data), $user->userid, 'com_kunena.route');
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
}
protected static function getCache() {
return JFactory::getCache('mod_menu', 'output');
}
public static function stringURLSafe($string, $default = null) {
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
if (!isset(self::$filtered[$string])) {
self::$filtered[$string] = JApplication::stringURLSafe($string);
// Remove beginning and trailing "whitespace", fixes #1130 where category alias creation fails on error: Duplicate entry '-'.
self::$filtered[$string] = trim(self::$filtered[$string], '-_ ');
if ($default && empty(self::$filtered[$string])) self::$filtered[$string] = $default;
}
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return self::$filtered[$string];
}
/**
* This method implements unicode slugs instead of transliteration.
* It has taken from Joomla 1.7.3 with the difference that urls are not lower case.
*
* @param string $string String to process
*
* @return string Processed string
*/
protected static function stringURLUnicodeSlug($string)
{
// Replace double byte whitespaces by single byte (East Asian languages)
$str = preg_replace('/\xE3\x80\x80/', ' ', $string);
// Remove any '-' from the string as they will be used as concatenator.
// Would be great to let the spaces in but only Firefox is friendly with this
$str = str_replace('-', ' ', $str);
// Replace forbidden characters by whitespaces
$str = preg_replace('#[:\#\*"@+=;!><&\.,%()\]\/\'\\\\|\[]#', "\x20", $str);
// Delete all '?'
$str = str_replace('?', '', $str);
// Trim white spaces at beginning and end of alias and make lowercase
$str = trim($str);
// Remove any duplicate whitespace and replace whitespaces by hyphens
$str = preg_replace('#\x20+#', '-', $str);
return $str;
}
public static function resolveAlias($alias) {
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
$db = JFactory::getDbo();
$query = "SELECT * FROM #__kunena_aliases WHERE alias LIKE {$db->Quote($alias.'%')}";
$db->setQuery ($query);
$aliases = $db->loadObjectList();
$vars = array();
foreach ($aliases as $object) {
if (JString::strtolower($alias) == JString::strtolower($object->alias)) {
$var = $object->type != 'legacy' ? $object->type : 'view';
$vars [$var] = $object->type != 'layout' ? $object->item : preg_replace('/.*\./', '', $object->item);
if ($var == 'catid') $vars ['view'] = 'category';
break;
}
}
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return $vars;
}
public static function initialize() {
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
self::$config = KunenaFactory::getConfig ();
if (JFactory::getApplication()->isAdmin()) {
self::$adminApp = true;
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return;
}
self::$menus = JFactory::getApplication()->getMenu ();
self::$menu = self::$menus->getMenu ();
self::$default = self::$menus->getDefault();
$active = self::$menus->getActive();
// Get the full request URI.
$uri = clone JUri::getInstance();
// Get current route.
self::$current = new JUri('index.php');
if ($active)
{
foreach ($active->query as $key => $value)
{
self::$current->setVar($key, $value);
}
self::$current->setVar('Itemid', (int) $active->id);
if ($active->type == 'component' && $active->component == 'com_kunena' && isset($active->query['view']))
{
self::$active = $active;
}
}
// If values are both in GET and POST, they are only stored in POST
foreach (JRequest::get('post') as $key => $value)
{
if (in_array($key, array('view', 'layout', 'task')) && !preg_match('/[^a-zA-Z0-9_.]/i', $value))
{
self::$current->setVar($key, $value);
}
}
// Make sure that request URI is not broken
foreach (JRequest::get('get') as $key => $value)
{
if (preg_match('/[^a-zA-Z]/', $key))
{
continue;
}
if (in_array($key, array('q', 'query', 'searchuser')))
{
// Allow all values
}
// TODO: we need to find a way to here deal with arrays: &foo[]=bar
elseif (gettype($value)=='string')
{
if(preg_match('/[^a-zA-Z0-9_ ]/i', $value))
{
// Illegal value
continue;
}
}
self::$current->setVar($key, $value);
}
if (self::$current->getVar('start'))
{
self::$current->setVar('limitstart', self::$current->getVar('start'));
self::$current->delVar('start');
}
self::$home = self::getHome(self::$active);
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
}
public static function cleanup() {
self::$filtered = array();
self::$uris = array();
}
protected static function prepare($uri = null) {
static $current = array();
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
if (!$uri || (is_string($uri) && $uri[0] == '&')) {
if (!isset($current[$uri])) {
$get = self::$current->getQuery(true);
$uri = $current[$uri] = JUri::getInstance('index.php?'.http_build_query($get).$uri);
self::setItemID($uri);
$uri->delVar ( 'defaultmenu' );
$uri->delVar ( 'language' );
} else {
$uri = $current[$uri];
}
} elseif (is_numeric($uri)) {
if (!isset(self::$menu[intval($uri)])) {
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return false;
}
$item = self::$menu[intval($uri)];
$uri = JUri::getInstance ( "{$item->link}&Itemid={$item->id}" );
} elseif ($uri instanceof JUri) {
// Nothing to do
} else {
$uri = new JUri((string) $uri);
}
$option = $uri->getVar('option');
$Itemid = $uri->getVar('Itemid');
if (!$option && !$Itemid) {
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return false;
} elseif ($option && $option != 'com_kunena') {
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return false;
} elseif ($Itemid && (!isset(self::$menu[$Itemid]) || self::$menu[$Itemid]->component != 'com_kunena')) {
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return false;
}
// Support legacy URIs
if ($uri->getVar('func')) {
$result = KunenaRouteLegacy::convert($uri);
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
if (!$result) return false;
return $uri;
}
// Check URI
switch ($uri->getVar('view', 'home')) {
case 'announcement':
KunenaRouteLegacy::convert($uri);
$r = array();
break;
case 'category':
$r = array('catid', 'limitstart', 'limit');
break;
case 'common':
$r = array();
break;
case 'credits':
$r = array();
break;
case 'home':
$r = array();
break;
case 'misc':
$r = array();
break;
case 'search':
$r = array('q', 'query', 'titleonly', 'searchuser', 'starteronly', 'exactname', 'replyless',
'replylimit', 'searchdate', 'beforeafter', 'sortby', 'order', 'childforums', 'catids',
'show', 'limitstart', 'limit');
break;
case 'statistics':
$r = array();
break;
case 'topic':
$r = array('catid', 'id', 'mesid', 'limitstart', 'limit');
break;
case 'topics':
$r = array('mode', 'userid', 'sel', 'limitstart', 'limit');
break;
case 'user':
$r = array('userid');
break;
case 'users':
$r = array('search', 'limitstart', 'limit');
break;
default:
$result = KunenaRouteLegacy::convert($uri);
if (!$result) {
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return false;
}
}
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return $uri;
}
protected static function build() {
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
if (self::$search === false) {
$user = KunenaUserHelper::getMyself();
$language = JFactory::getDocument()->getLanguage();
$cache = self::getCache();
// FIXME: enable caching after fixing the issues
self::$search = false; //unserialize($cache->get('search', "com_kunena.route.{$language}.{$user->userid}"));
if (self::$search === false) {
self::$search['home'] = array();
foreach ( self::$menu as $item ) {
// Joomla! 1.5:
if (! is_object ( $item ) || (isset($item->published) && $item->published < 1 ))
continue;
// Do not add menu items for other languages
if (isset($item->language) && $item->language != '*' && strtolower($item->language) != strtolower($language))
continue;
if ($item->type == 'alias' && !empty($item->query['Itemid']) && !empty(self::$menu[$item->query['Itemid']])) {
// Follow links
$item = self::$menu[$item->query['Itemid']];
} elseif ($item->type == 'component' && $item->component == 'com_kunena' && isset($item->query['view'])) {
// Save Kunena menu items so that we can make fast searches
$home = self::getHome($item);
self::$search[$item->query['view']][$home ? $home->id : 0][$item->id] = $item->id;
}
}
// FIXME: enable caching after fixing the issues
//$cache->store(serialize(self::$search), 'search', "com_kunena.route.{$language}.{$user->userid}");
}
}
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
}
protected static function setItemID(JUri $uri) {
static $candidates = array();
KUNENA_PROFILER ? KunenaProfiler::instance()->start('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
$view = $uri->getVar('view');
$catid = (int) $uri->getVar('catid');
$Itemid = (int) $uri->getVar('Itemid');
$key = $view.$catid;
if (!isset($candidates[$key])) {
if (self::$search === false) self::build();
$search = array();
if (self::$home) {
// Search from the current home menu
$search[self::$home->id] = 1;
// Then search from all linked home menus
if (isset(self::$search['home'][self::$home->id])) $search += self::$search['home'][self::$home->id];
}
// Finally search from other home menus
$search += self::$search['home'];
// Find all potential candidates
$candidates[$key] = array();
foreach ($search as $id=>$dummy) {
$follow = !empty(self::$menu[$id]) ? self::$menu[$id] : null;
if ($follow && self::checkHome($follow, $catid)) {
$candidates[$key] += !empty(self::$search[$view][$follow->id]) ? self::$search[$view][$follow->id] : array();
if ($view == 'topic') $candidates[$key] += !empty(self::$search['category'][$follow->id]) ? self::$search['category'][$follow->id] : array();
$candidates[$key][$follow->id] = $follow->id;
}
}
// Don't forget lonely candidates
$candidates[$key] += !empty(self::$search[$view][0]) ? self::$search[$view][0] : array();
if ($view == 'topic') $candidates[$key] += !empty(self::$search['category'][0]) ? self::$search['category'][0] : array();
}
// Check current menu item first
$bestcount = ($Itemid && isset(self::$menu[$Itemid])) ? self::checkItem(self::$menu[$Itemid], $uri) : 0;
$bestid = $bestcount ? $Itemid : 0;
// Then go through all candidates
foreach ($candidates[$key] as $id) {
$item = self::$menu[$id];
$matchcount = self::checkItem($item, $uri);
if ($matchcount > $bestcount) {
// This is our best candidate this far
$bestid = $item->id;
$bestcount = $matchcount;
}
}
$uri->setVar('Itemid', $bestid);
KUNENA_PROFILER ? KunenaProfiler::instance()->stop('function '.__CLASS__.'::'.__FUNCTION__.'()') : null;
return $bestid;
}
protected static function checkItem($item, JUri $uri) {
$authorise = self::$menus->authorise($item->id);
if (!$authorise) {
return 0;
}
$catid = (int) $uri->getVar('catid');
if ( !empty($item->query['view']) ) {
switch ($item->query['view']) {
case 'home':
$matchcount = self::checkHome($item, $catid);
break;
case 'category':
case 'topic':
$matchcount = self::checkCategory($item, $uri);
break;
default:
$matchcount = self::check($item, $uri);
}
return $matchcount;
} else {
return 1;
}
}
protected static function checkHome($item, $catid) {
static $cache = array();
if (!$catid) return 1;
if (!isset($cache[$item->id])) {
$params = $item->params;
$catids = $params->get('catids', array());
if (!is_array($catids)) {
$catids = explode(',', $catids);
}
if (!empty($catids)) {
$catids = array_combine($catids, $catids);
}
unset($catids[0], $catids['']);
$cache[$item->id] = (array) $catids;
}
return intval(empty($cache[$item->id]) || isset($cache[$item->id][$catid]));
}
protected static function checkCategory($item, JUri $uri) {
static $cache = array();
$catid = (int) $uri->getVar('catid');
$check = self::check($item, $uri);
if (!$check || !$catid) return $check;
if (!isset($cache[$item->id])) {
$cache[$item->id] = array();
if (!empty($item->query['catid'])) {
$cache[$item->id] = KunenaForumCategoryHelper::getChildren($item->query['catid']);
$cache[$item->id][$item->query['catid']] = KunenaForumCategoryHelper::get($item->query['catid']);
}
}
return intval(isset($cache[$item->id][$catid])) * 8;
}
protected static function check($item, JUri $uri) {
$hits = 0;
foreach ( $item->query as $var => $value ) {
if ($value != $uri->getVar($var)) {
return 0;
}
$hits++;
}
return $hits;
}
}