File Source for sef.php

<?php
/**
* @package Mambo
* @copyright Refer to copyright.php
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
* @author Mambo Foundation Inc see README.php
*/
class mosSEF {
var $prefix = '';
var $custom_code = array();
var $custom_name = array();
var $custom_PHP = array();
var $custom_short = array();
var $sef_content_task = array();
var $sef_name_chars = array();
var $sef_translate_chars = array();
var $sef_name_string = '';
var $sef_translate_string = '';
var $content_data = null;
var $content_items = array();
var $content_sections = array();
var $content_categories = array();
var $SEF_SPACE;
function mosSEF () {
/*******************************************************************************
** The following are parameters for the ReMOSef Search Engine
** Optimisation component. $this->SEF_SPACE should be set to the
** character that is to replace blanks in names that form the URL.
** You can vary this, although the only sensible choices seem to be
** underscore or hyphen (_ or -).
**
** The arrays $this->custom_code and $this->custom_name must be kept exactly
** in step with each other. $this->custom_code is a list of the components
** that are to be handled by ReMOSef.
**
** The array $this->custom_name is the alternative name that will be used
** in the optimised URL to identify the component and can be whatever
** you please so long as it is unique and legal for a URL. Apart from
** using the custom name for the component, ReMOSef will do no further
** translation of the URL than is done by the standard Mambo SEF - UNLESS
** there is a sef_ext.php file installed for that component. The
** exception to this is ReMOSitory - the optimisation code for Remository
** is integrated in ReMOSef. For other components, if a sef_ext.php is
** present, it will be invoked by ReMOSef.
**
** The array $remosef_content_task is capable of translating the tasks
** understood by the Mambo content component. Please DO NOT CHANGE what
** is to the left of the equals sign. When putting different values on
** the right hand side, remember that they must all be different, and must
** also be different from any of the custom names used for components.
** Without that, Remosef cannot figure out what a SEF URL means and will
** give unpredictable results.
**
** Note that the names in custom_name must not be allowed to clash with
** the names used as tasks by the content component, in their
** translated form - see below.
*******************************************************************************/
$this->SEF_SPACE = "_"; // divide words with underscores
// can be changed to a hyphen "-"
$this->custom_code = array('com_frontpage','com_contact');
$this->custom_name = array('Frontpage','Contact_Us');
/*******************************************************************************
** The following are the parameters for the optional content specific
** URL optimisation. They are not used within the standard SEF processing
** unless you add in a sef_ext.php that is integrated with the Mambo SEF.
**
** The following two lines define the translations that SEF will perform on
** names of sections and categories when translating them for inclusion in a URL.
** Each item in $this->sef_name_chars is translated into the corresponding
** element of $this->sef_translate_chars.
**
** NOTE it is important that space be the last translate character, since the
** characters are processed in the order in which they appear. Since earlier
** translates may create new spaces, it is vital that the space translation is
** done last.
**
** You can extend these arrays as you wish, although it is obviously important
** to make sure that the items of one match the items of the other exactly.
*******************************************************************************/
$this->sef_name_chars = array('?', '&', '/', ' ');
$this->sef_translate_chars = array('', 'and', ' or ', $this->SEF_SPACE);
$this->sef_name_string = '�\'';
$this->sef_translate_string = '--';
/************** DO NOT MAKE CHANGES IN THE FOLLOWING LINES EXCEPT AT YOUR OWN RISK! ********************/
if (mamboCore::is_set('mosConfig_sef_prefix')) $this->prefix = mamboCore::get('mosConfig_sef_prefix');
else $this->prefix = 'mos';
if ($this->prefix == 'content' OR $this->prefix == 'component') $this->prefix = 'mos';
foreach ($this->custom_code as $code) {
$codefile = "components/$code/sef_ext.php";
if (file_exists($codefile)) {
include ($codefile);
$this->custom_PHP[] = true;
}
else $this->custom_PHP[] = false;
$split = explode('_',$code);
$this->custom_short[] = $split[1];
}
$this->sef_content_task['findkey'] = 'findkey';
$this->sef_content_task['view'] = 'view';
$this->sef_content_task['section'] = 'section';
$this->sef_content_task['category'] = 'category';
$this->sef_content_task['blogsection'] = 'blogsection';
$this->sef_content_task['blogcategorymulti'] = 'blogcategorymulti';
$this->sef_content_task['blogcategory'] = 'blogcategory';
$this->sef_content_task['archivesection'] = 'archivesection';
$this->sef_content_task['archivecategory'] = 'archivecategory';
$this->sef_content_task['save'] = 'save';
$this->sef_content_task['cancel'] = 'cancel';
$this->sef_content_task['emailform'] = 'emailform';
$this->sef_content_task['emailsend'] = 'emailsend';
$this->sef_content_task['vote'] = 'vote';
$this->sef_content_task['showblogsection'] = 'showblogsection';
}
function &getInstance () {
static $instance;
if (!is_object($instance)) $instance = new mosSEF();
return $instance;
}
function nameForURL ($string) {
$accented = "��".$this->sef_name_string;
$nonaccent = "SOZsozYYuAAAAAAACEEEEIIIIDNOOOOOOUUUUYsaaaaaaaceeeeiiiionoooooouuuuyy".$this->sef_translate_string;
$string = strtr($string, $accented, $nonaccent);
foreach ($this->sef_name_chars as $i=>$char) $string = str_replace($char, $this->sef_translate_chars[$i], $string);
$string = urlencode($string);
return $string;
}
function sefRetrieval($register_globals){
if (preg_match('/(\b)GLOBALS|_REQUEST|_SERVER|_ENV|_COOKIE|_GET|_POST|_FILES|_SESSION(\b)/i', $_SERVER['REQUEST_URI']) > 0) {
die('Invalid Request');
}
if (mamboCore::get('mosConfig_sef')) {
$subdir = mamboCore::get('subdirectory');
$uri = substr($_SERVER['REQUEST_URI'], strlen($subdir));
$url_array = explode('/', $uri);
/**
* Content
* /$option/$task/$sectionid/$id/$Itemid/$limit/$limitstart
*/
if (!isset($url_array[2]) AND strpos($uri, '?')) return 0;
elseif ($url_array[2] == 'syndstyle') {
array_splice($url_array, 2, 1);
$_REQUEST['syndstyle'] = $_GET['syndstyle'] = $syndstyle = 'yes';
$QUERY_STRING = 'syndstyle=yes&';
}
else $QUERY_STRING = '';
// language hook for content
$lang = "";
$parms = array();
foreach($url_array as $key=>$value) {
if ( strcasecmp(substr($value,0,5),'lang,') == 0 ) {
$parts = explode(",", $value);
if (count($parts) > 1) {
$lang = $_REQUEST['lang'] = $_GET['lang'] = $parts[1];
}
}
elseif ( $value != '' AND $key > 1 ) $parms[] = $value;
}
$foundit = false;
if ($url_array[1] == 'content') {
$num = count($parms);
$foundit = true;
$_REQUEST['option'] = $_GET['option'] = $option = 'com_content';
if (!is_numeric($parms[$num-1])) {
$_REQUEST['lang'] = $_GET['lang'] = $lang = array_pop($parms);
$num--;
}
// $option/$task/$sectionid/$id/$Itemid/$limit/$limitstart/
$task = array_search($parms[0], $this->sef_content_task);
if ($task === false OR $task === null) return 1;
$_REQUEST['task'] = $_GET['task'] = $task;
$QUERY_STRING .= "option=com_content&task=$task";
if ($task == 'archivecategory') {
$_REQUEST['year'] = $_GET['year'] = $year = intval(@$parms[1]);
$_REQUEST['month'] = $_GET['month'] = $month = sprintf("%02d",intval(@$parms[2]));
$_REQUEST['module'] = $_GET['module'] = $module = intval(@$parms[3]);
$QUERY_STRING .= "&year=$year&month=$month&module=$module";
}
else {
for ($i = 1; $i <= $num-1; $i++) {
if (strcmp($parms[$i], (int)$parms[$i]) !== 0) return 1;
}
$i = 1;
if ($num == 6 OR $num == 4) {
$_REQUEST['sectionid'] = $_GET['sectionid'] = $sectionid = $parms[$i];
$QUERY_STRING .= "&sectionid=$sectionid";
$i++;
}
if ($num > 1) {
$_REQUEST['id'] = $_GET['id'] = $id = $parms[$i];
$QUERY_STRING .= "&id=$id";
}
if ($num > 2) {
$_REQUEST['Itemid'] = $_GET['Itemid'] = $Itemid = $parms[$i+1];
mamboCore::set('Itemid',$Itemid);
$QUERY_STRING .= "&Itemid=$Itemid";
}
if ($num > 4) {
$_REQUEST['limit'] = $_GET['limit'] = $limit = $parms[$i+2];
$_REQUEST['limitstart'] = $_GET['limitstart'] = $limitstart = $parms[$i+3];
$QUERY_STRING .= "&limit=$limit&limitstart=$limitstart";
$i+=2;
}
}
if ($lang!="") {
$QUERY_STRING .= "&lang=$lang";
}
}
/*
Components
http://www.domain.com/component/$name,$value
*/
elseif ($url_array[1] == 'component') {
$QUERY_STRING .= $this->default_revert('component');
if ($QUERY_STRING) $foundit = true;
}
elseif ($url_array[1] == $this->prefix) {
$menuhandler =& mosMenuHandler::getInstance();
foreach ($this->custom_name as $i=>$compname) {
if ($url_array[2] == $compname) {
$origname = $this->custom_code[$i];
$_REQUEST['Itemid'] = $_GET['Itemid'] = $Itemid = $menuhandler->getIDLikeLink("index.php?option=$origname");
mamboCore::set('Itemid', $Itemid);
if ($this->custom_PHP[$i]) {
$fixup = '$QUERY_STRING .= "option='.$origname.'&Itemid=".$Itemid.sef_'.$this->custom_short[$i].'::revert($url_array,1);';
eval($fixup);
}
else $QUERY_STRING .= "option=$origname&Itemid=$Itemid".$this->default_revert($compname);
$_REQUEST['option'] = $this->custom_code[$i];
$foundit = true;
break;
}
}
if (!$foundit) {
$content_sef = mamboCore::get('mosConfig_absolute_path').'/components/com_content/sef_ext.php';
if (file_exists($content_sef)) {
require_once($content_sef);
$crevert = sef_content::revert($url_array,1);
if ($crevert) {
$foundit = true;
$QUERY_STRING .= $crevert;
}
}
}
}
if ($foundit) {
$_SERVER['QUERY_STRING'] = $QUERY_STRING;
$REQUEST_URI = '/index.php?'.$QUERY_STRING;
$_SERVER['REQUEST_URI'] = $REQUEST_URI;
return 0;
}
else return 1;
}
return 0;
}
function default_revert ($specialname) {
$request = explode($specialname.'/', $_SERVER['REQUEST_URI']);
if (isset($request[1])) $parmset = explode("/", $request[1]);
else $parmset = array();
$QUERY_STRING = '';
$menuhandler =& mosMenuHandler::getInstance();
foreach($parmset as $values) {
$parts = explode(",", $values);
if (count($parts) > 1) {
$_REQUEST[$parts[0]] = $_GET[$parts[0]] = $parts[1];
if ($parts[0] == 'option') {
$_REQUEST['Itemid'] = $_GET['Itemid'] = $Itemid = $menuhandler->getIDLikeLink("index.php?option=$parts[1]");
mamboCore::set('Itemid', $Itemid);
$QUERY_STRING .= "$parts[0]=$parts[1]&Itemid=$Itemid";
}
$QUERY_STRING .= "&$parts[0]=$parts[1]";
}
}
return $QUERY_STRING;
}
function sefRelToAbs( $string ) {
global $mosConfig_nok_content,$iso_client_lang;
$server = mamboCore::get('mosConfig_live_site');
if ($string == 'index.php') return $server.'/';
if (strtolower(substr($string,0,9)) != 'index.php' OR eregi('^(([^:/?#]+):)',$string)) return $string;
$anchor = '';
if (preg_match('/#((.)+)$/',$string,$parts)){
$anchor = $parts[1];
$string = substr($string, 0, (strlen($anchor) + 1)*-1);
}
if (mosGetParam($_GET, 'syndstyle', '') == 'yes') $string .= '&syndstyle=yes';
if($mosConfig_nok_content AND (strpos( strtolower($string),"lang=") === false)) {
$string .= "&lang=$iso_client_lang";
}
$passed_string = str_replace('&', '&', $string);
if (!mamboCore::get('mosConfig_sef')) return $this->plusAnchor($server.'/'.str_replace( '&', '&', $passed_string ),$anchor);
$string = substr($passed_string,10);
$option = $task = '';
$oktasks = true;
$syndmark = '';
parse_str($string, $params);
foreach ($params as $key=>$value) {
$lowkey = strtolower($key);
$lowvalue = strtolower($value);
$unset = true;
switch ($lowkey) {
case 'option':
$option = $lowvalue;
break;
case 'task':
$task = $value;
if ($lowvalue == 'new' OR $lowvalue == 'edit') $oktasks = false;
break;
case 'syndstyle':
$syndmark = '/syndstyle';
break;
default:
$check_params[$lowkey] = $key;
$unset = false;
}
if ($unset) unset($params[$key]);
}
// Process content items
if (($option == 'com_content' OR $option == 'content') AND $oktasks) {
/*
Content
index.php?option=com_content&task=$task&sectionid=$sectionid&id=$id&Itemid=$Itemid&limit=$limit&limitstart=$limitstart
*/
$task = $this->sef_content_task[$task];
$content_sef = mamboCore::get('mosConfig_absolute_path').'/components/com_content/sef_ext.php';
if (file_exists($content_sef)) {
require_once($content_sef);
return $this->plusAnchor($server.'/'.$this->prefix.$syndmark.sef_content::create($task, $params),$anchor);
}
$keys = array('sectionid', 'id', 'itemid', 'limit', 'limitstart', 'year', 'month', 'module', 'lang');
$string = '/content'.$syndmark.'/'.$task.'/';
foreach ($keys as $key) {
if (isset($check_params[$key])) {
$pkey = $check_params[$key];
$string .= $params[$pkey].'/';
}
}
return $this->plusAnchor($server.$string,$anchor);
}
// Other types of URL than content do not use Itemid in the SEO version
if (isset($check_params['itemid']) && isset($check_params['id'])) {
$pkey = $check_params['itemid'];
unset($params[$pkey]);
unset($check_params['itemid']);
}
// Process customised components
$i = array_search($option,$this->custom_code);
if ($i !== false AND $i !== null) {
if ($this->custom_PHP[$i]) eval('$string = sef_'.$this->custom_short[$i].'::create($passed_string);');
else $string = $this->componentDetails($params,$task);
return $this->plusAnchor($server.'/'.$this->prefix.$syndmark.'/'.$this->custom_name[$i].'/'.$string,$anchor);
}
// Process ordinary components
if (strpos($option,'com_')===0 AND $option != 'com_registration' AND $oktasks) {
return $this->plusAnchor("$server/component$syndmark/option,$option/".$this->componentDetails($params,$task),$anchor);
}
// Anything else is returned as received, except it is guaranteed that & will be &
return $this->plusAnchor($server.'/'.str_replace( '&', '&', $passed_string ),$anchor);
}
function componentDetails (&$params, $task) {
$string = ($task ? "task,$task/" : '');
foreach ($params as $key=>$param) $string .= "$key,$param/";
return $string;
}
function plusAnchor($sefString, $anchor){
if ( substr($sefString,-1) == '/' ){
$sefString = substr($sefString,0,-1);
if ($anchor!=''){
$sefString.="#{$anchor}";
}else{
$sefString.='/';
}
}
return $sefString;
}
}
if (!function_exists('sefRelToAbs')){
function sefRelToAbs ($string) {
$sef =& mosSEF::getInstance();
return $sef->sefRelToAbs($string);
}
}
if (mamboCore::get('mosConfig_sef') AND $indextype == 3) {
$sef =& mosSEF::getInstance();
$urlerror = $sef->sefRetrieval(mamboCore::get('mosConfig_register_globals'));
$indextype = 1;
}
?>

Documentation generated on Mon, 05 May 2008 16:22:50 +0400 by phpDocumentor 1.4.0

Source for file sef.php