<?php
/**
* Required functions for the CSS/JS Loader
*
* @author yellow1912 (RubikIntegration.com)
* @author John William Robeson, Jr <johnny@localmomentum.net>
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License V2.0
*
* NOTES:
* All .php files can be manipulated by PHP when they're called, and are copied in-full to the browser page
*/
class RiCjLoaderPlugin
{
protected $jscript = array();
protected $css = array();
protected $template;
protected $page_directory = '';
protected $current_page_base = '';
protected $request_type;
protected $libs;
protected $loaders = array();
protected $options = array(
'cdn' => false, 
'admin' => false, 
'loaders' => '*', 
'status' => true, 
'ajax' => false, 
'load_global' => true, 
'load_print' => true, 
'minify_css' => false,
'minify_js' => false, 
'minify_time' => 0, 
'inheritance' => '',
'supported_externals' => array('http', 'https', '//')
);
function __construct()
{
global $current_page_base, $page_directory, $request_type, $template;
if (defined('MINIFY_STATUS_JS') && defined('MINIFY_STATUS_CSS')) {
if (MINIFY_STATUS_CSS === 'true') {
$this->options['minify_css'] = true;
}
if (MINIFY_STATUS_JS === 'true') {
$this->options['minify_js'] = true;
}
if (MINIFY_STATUS_CSS === 'true' || MINIFY_STATUS_JS === 'true') {
// @todo FIXME we shouldn't set the cache time until a minify file is successfully generated
global $db;
$now = time();
$this->options['minify_time'] = (int)MINIFY_CACHE_TIME_LATEST;
if($now - $this->options['minify_time'] > (int)MINIFY_CACHE_TIME_LENGHT){
$db->Execute("UPDATE ".TABLE_CONFIGURATION." SET configuration_value = $now WHERE configuration_key = 'MINIFY_CACHE_TIME_LATEST'");
$this->options['minify_time'] = $now;
}
}
}
$this->template = $template;
$this->page_directory = $page_directory;
$this->request_type = $request_type;
}
function autoloadLoaders(){	
if($this->get('loaders') == '*')
{
$directory_array = $this->template->get_template_part(DIR_WS_TEMPLATE.'auto_loaders', '/^loader_/', '.php');
while(list ($key, $value) = each($directory_array)) {
/**
* include content from all site-wide loader_*.php files from includes/templates/YOURTEMPLATE/jscript/auto_loaders, alphabetically.
*/
require(DIR_WS_TEMPLATE.'auto_loaders'. '/' . $value);
}
}
elseif(count($this->get('loaders')) > 0)
{
foreach($this->get('loaders') as $loader)
if(file_exists($path = DIR_WS_TEMPLATE.'auto_loaders'. '/loader_' . $loader .'.php')) require($path);
}
else 
return;
if(count($loaders) > 0)	$this->addLoaders($loaders, true);		
}
function set($options){
$this->options = array_merge($this->options, $options);
}
function get($key = ''){
if(!empty($key))
return isset($this->options[$key]) ? $this->options[$key] : false;
else return $this->options;
}
/**
* Get asset directory
*/
function getAssetDir($extension, $directory, $template = DIR_WS_TEMPLATE)
{
return $this->template->get_template_dir($extension, $template, $this->current_page_base, $directory);
}
/**
* Find asset files in a template directory
*
* @param string extension - file extension to look for
* @param directory - subdirectory of the template containing the assets
*/
function findAssets($extension, $directory, $file_pattern = '', $order = 0)
{
$templateDir = $this->getAssetDir($extension, $directory, DIR_WS_TEMPLATE);
$allFiles = $this->template->get_template_part($templateDir, $file_pattern, $extension);
if($this->get('inheritance') != ''){
$defaultDir = $this->getAssetDir($extension, $directory, DIR_WS_TEMPLATES. $this->get('inheritance'));
$allFiles = array_unique(array_merge($this->template->get_template_part($defaultDir, $file_pattern, $extension),$allFiles));
}
$files = array();
foreach ($allFiles as $file) {
// case 1: file is in server but full path not passed, assuming it is under corresponding template css/js folder
if(file_exists(DIR_FS_CATALOG.DIR_WS_TEMPLATE.$directory.'/'.$file)){
$files[DIR_WS_TEMPLATE.$directory.'/'.$file] = $order++;
}
elseif ($this->get('inheritance') != '' && file_exists(DIR_FS_CATALOG.DIR_WS_TEMPLATES.$this->get('inheritance').'/'.$directory.'/'.$file)){
$files[DIR_WS_TEMPLATES.$this->get('inheritance').'/'.$directory.'/'.$file] = $order++;
}
}
return $files;
}
/**
* 
* We process libs here
* TODO: add basic version comparison
*/
function processLibs () 
{   
if (count($this->libs) == 0) return;
$css_files = $jscript_files = array();
$load_order = -99999; // we set the libs to load first
foreach ($this->libs as $lib => $options)
{
// attempt to load the config file
if (file_exists(DIR_FS_CATALOG . 'plugins/riCjLoader/config/' . $lib . '.php'))
{
include (DIR_FS_CATALOG . 'plugins/riCjLoader/config/' . $lib . '.php');
$lib_versions = array_keys($libs[$lib]);
foreach ($options as $option)
{
if (isset($option['min']) && (($pos = array_search($option['min'], $lib_versions)) != 0))
{
$lib_versions = array_slice($lib_versions, $pos);
}
if (isset($option['max']) && (($pos = array_search($option['max'], $lib_versions)) < count($lib_versions)-1))
{
array_splice($lib_versions, $pos+1);
}
}
if (empty($lib_versions)) 
{
// houston we have a problem
// TODO: we need to somehow print out the error in this case
}
else 
{
// we prefer the latest version
$lib_version = end($lib_versions);
// add the files
if (isset($libs[$lib][$lib_version]['css_files']))
foreach ($libs[$lib][$lib_version]['css_files'] as $css_file => $css_file_options)
{
if($this->get('cdn') && isset($css_file_options['cdn'])){
$file = $this->request_type == 'NONSSL' ? $css_file_options['cdn']['http'] : $css_file_options['cdn']['https'];
$css_files[$file] = $load_order++;
}
else
{
$file = !empty($css_file_options['local']) ? $css_file_options['local'] : $css_file;
$css_files['libs/' . $lib . '/' . $lib_version . '/' . $file] = $load_order++;
}	
}
if (isset($libs[$lib][$lib_version]['jscript_files']))
foreach ($libs[$lib][$lib_version]['jscript_files'] as $jscript_file => $jscript_file_options)
{
if($this->get('cdn') && isset($jscript_file_options['cdn'])){
$file = $this->request_type == 'NONSSL' ? $jscript_file_options['cdn']['http'] : $jscript_file_options['cdn']['https'];
$jscript_files[$file] = $load_order++;		
}
else
{
$file = !empty($jscript_file_options['local']) ? $jscript_file_options['local'] : $jscript_file;
$jscript_files['libs/' . $lib . '/' . $lib_version . '/' . $file] = $load_order++;
}	
}
}
}			
}
if (!empty($css_files)) $this->addLoaderAssets($css_files, 'css');
if (!empty($jscript_files)) $this->addLoaderAssets($jscript_files, 'jscript');
}
function addLibs ($libs){
foreach ($libs as $lib => $option)
{
$this->libs[$lib][] = $option;
}
}
function addAssets($files, $type)
{
foreach ($files as $file => $order) {
$this->{$type}[] = array($file => $order);
}
}
function addLoaderAssets($files, $type){
foreach ($files as $file => $order) {
$error = false;
if(!file_exists($path = DIR_WS_TEMPLATE.$type . '/' . $file))
if(!file_exists($path = DIR_WS_CATALOG . '/' . $file))
if($this->strposArray($file, $this->options['supported_externals']) !== false)
$path = $file;
else
$error = true; 
if(!$error)		
$this->{$type}[] = array($path => $order);
else
{
// some kind of error logging here
}
}
}
function strposArray($haystack, $needles) {
$pos = false;
if ( is_array($needles) ) {
foreach ($needles as $str) {
if ( is_array($str) ) {
$pos = $this->strposArray($haystack, $str);
} else {
$pos = strpos($haystack, $str);
}
if ($pos !== FALSE) {
break;
}
}
} else {
$pos = strpos($haystack, $needles);
}
return $pos;
}
function loadFiles($files){
$result = array();
foreach($files as $_files){
foreach($_files as $file=>$order)
if(!isset($result[$file]) || $result[$file] > $order) $result[$file] = $order;
}
if(count($result) > 0)
asort($result);
return $result;
}
function addLoaders($loaders, $multi = false){
if($multi)
$this->loaders = array_merge($this->loaders, $loaders);
else
$this->loaders[] = $loaders;
}
function setCurrentPageBase(){
if(!$this->get('admin')){
global $current_page_base, $this_is_home_page;
// set current page
if($this_is_home_page)
$this->current_page_base = 'index_home';
elseif($current_page_base == 'index'){
if(isset($_GET['cPath']))
$this->current_page_base = 'index_category';
elseif(isset($_GET['manufacturers_id']))
$this->current_page_base = 'index_manufacturer';
}
else
$this->current_page_base = $current_page_base;
}
else{
$this->current_page_base = preg_replace('/\.php/','',substr(strrchr($_SERVER['PHP_SELF'],'/'),1),1);
}
}
function loadCssJsFiles()
{
global $this_is_home_page, $cPath;
$template = $this->template;
$page_directory = $this->page_directory;
// set the correct base
$this->setCurrentPageBase();
/**
* load the loader files
*/
if((is_array($this->loaders)) && count($this->loaders) > 0)	{
foreach($this->loaders as $loader){
if(isset($loader['conditions']['pages']) && (in_array('*', $loader['conditions']['pages']) || in_array($this->current_page_base, $loader['conditions']['pages']))){
if(isset($loader['libs']))
$this->addLibs($loader['libs']);
if(isset($loader['jscript_files']))
$this->addLoaderAssets($loader['jscript_files'], 'jscript');
if(isset($loader['css_files']))
$this->addLoaderAssets($loader['css_files'], 'css');
}
else{
$load = false;
if(isset($loader['conditions']['call_backs']))
foreach($loader['conditions']['call_backs'] as $function){
$f = explode(',',$function);
if(count($f) == 2){
$load = call_user_func(array($f[0], $f[1]));
}
else $load = $function();
if($load){
if(isset($loader['libs']))
$this->addLibs($loader['libs']);
if(isset($loader['jscript_files']))
$this->addLoaderAssets($loader['jscript_files'], 'jscript');
if(isset($loader['css_files']))
$this->addLoaderAssets($loader['css_files'], 'css');
break;
}
}
}
}
$this->processLibs();
}
if($this->get('load_global')) {
/**
* load all template-specific stylesheets, named like "style*.css", alphabetically
*/
$files = $this->findAssets('.css', 'css', '/^style/', -300);
$this->addAssets($files, 'css');
/**
* load all template-specific stylesheets, named like "style*.php", alphabetically
*/
$files = $this->findAssets('.php', 'css', '/^style/', -250);
$this->addAssets($files, 'css');
/**
* load all site-wide jscript_*.js files from includes/templates/YOURTEMPLATE/jscript, alphabetically
*/
$files = $this->findAssets('.js', 'jscript', '/^jscript_/', -400);
$this->addAssets($files, 'jscript');
/**
* include content from all site-wide jscript_*.php files from includes/templates/YOURTEMPLATE/jscript, alphabetically.
*/
$files = $this->findAssets('.php', 'jscript', '/^jscript_/', -200);
$this->addAssets($files, 'jscript');
}
/**
* TODO: we shouldn't use $_GET here, it breaks the encapsulation
* load stylesheets on a per-page/per-language/per-product/per-manufacturer/per-category basis. Concept by Juxi Zoza.
*/
$manufacturers_id = (isset($_GET['manufacturers_id'])) ? $_GET['manufacturers_id'] : '';
$tmp_products_id = (isset($_GET['products_id'])) ? (int)$_GET['products_id'] : '';
$tmp_pagename = ($this_is_home_page) ? 'index_home' : $this->current_page_base;
$sheets_array = array('/' . $_SESSION['language'] . '_stylesheet',
'/' . $tmp_pagename,
'/' . $_SESSION['language'] . '_' . $tmp_pagename,
'/c_' . $cPath,
'/' . $_SESSION['language'] . '_c_' . $cPath,
'/m_' . $manufacturers_id,
'/' . $_SESSION['language'] . '_m_' . (int)$manufacturers_id,
'/p_' . $tmp_products_id,
'/' . $_SESSION['language'] . '_p_' . $tmp_products_id
);
$load_order = -200;
foreach ($sheets_array as $key => $value) {
$perpagefile = $this->getAssetDir('.css', 'css') . $value . '.css';
if (file_exists($perpagefile)) $this->addAssets(array($perpagefile => $load_order++), 'css');
$perpagefile = $this->getAssetDir('.php', 'css') . $value . '.php';
if (file_exists($perpagefile)) $this->addAssets(array($perpagefile => $load_order++), 'css');
$perpagefile = $this->getAssetDir('.js', 'jscript') . $value . '.js';
if (file_exists($perpagefile)) $this->addAssets(array($perpagefile => $load_order++), 'jscript');
$perpagefile = $this->getAssetDir('.php', 'jscript') . $value . '.php';
if (file_exists($perpagefile)) $this->addAssets(array($perpagefile => $load_order++), 'jscript');
}
/**
* load printer-friendly stylesheets -- named like "print*.css", alphabetically
*/
if($this->get('load_print')) {
$directory_array = $this->findAssets('.css','css', '/^print/');
// TODO: don't output link tags directly from here
foreach ($directory_array as $key => $value) {
echo '<link rel="stylesheet" type="text/css" media="print" href="' . $key . '" />'."\n";
}
}
if (file_exists(DIR_FS_CATALOG . 'plugins/riCjLoader/lib/browser.php') && floatval(phpversion()) > 5) {
include(DIR_FS_CATALOG . 'plugins/riCjLoader/lib/browser.php');
$browser = new _Browser();
$browser_name = preg_replace("/[^a-zA-Z0-9s]/", "-", strtolower($browser->getBrowser()));
$browser_version = floor($browser->getVersion());
// this is to make it compatible with the other ie css hack
if ($browser->getBrowser() == 'Internet Explorer') {
$browser_name = 'ie';
}
// get the browser specific files
$files = $this->findAssets('.css', 'css', "/^{$browser_name}-/", -100);
$this->addAssets($files, 'css');
$files = $this->findAssets('.js', 'jscript', "/^{$browser_name}-/", -500);
$this->addAssets($files, 'jscript');
// get the browser version specific files
$files = $this->findAssets('.css', 'css', "/^{$browser_name}{$browser_version}-/", -100);
$this->addAssets($files, 'css');
$directory_array = $this->findAssets('.js', 'jscript', "/^{$browser_name}{$browser_version}-/", -500);
$this->addAssets($files, 'jscript');
}
/**
* load all page-specific jscript_*.js files from includes/modules/pages/PAGENAME, alphabetically
*/
$files = $this->template->get_template_part($page_directory, '/^jscript_/', '.js');
$load_order = -300;
foreach ($files as $key => $value) {
$this->addAssets(array("$page_directory/$value" => $load_order++), 'jscript');
}
/**
* include content from all page-specific jscript_*.php files from includes/modules/pages/PAGENAME, alphabetically.
*/
$load_order = -100;
$files = $this->template->get_template_part($page_directory, '/^jscript_/', '.php');
foreach ($files as $key => $value) {
$this->addAssets(array("$page_directory/$value" => $load_order++), 'jscript');
}
return true;
}
function processCssJsFiles()
{
$css_files = $this->loadFiles($this->css);
$js_files = $this->loadFiles($this->jscript);
$files['jscript'] = $this->getFiles($js_files, $this->get('minify_js'));
$files['css'] = $this->getFiles($css_files, $this->get('minify_css'));
return $files;
}
function getPath($file, $type = 'jscript'){
$path_info = pathinfo($file);
return array('extension' => $path_info['extension'], 'path' => DIR_WS_TEMPLATE.$type.'/'.$path_info['dirname'].$file_name);
}
function getFiles($files, $minify = false)
{
$files_paths = '';
$result = array();
$relative_path = $this->request_type == 'NONSSL' ? DIR_WS_CATALOG : DIR_WS_HTTPS_CATALOG;
foreach ($files as $file => $order) {
$file_absolute_path = DIR_FS_CATALOG.$file;
$file_relative_path = $relative_path.$file;
if($this->strposArray($file, $this->options['supported_externals']) !== false) {
// TODO: do the outputting formatting all in one place
$result[] = array('src' => $file, 'include' => false, 'external' => true);
continue;
}
$ext = pathinfo($file, PATHINFO_EXTENSION);
// if we encounter php, unfortunately we will have to include it for now
// another solution is to put everything into 1 file, but we will have to solve @import
if ($ext == 'php') {
if(!empty($files_paths)){
$result[] = array('src' => trim($files_paths, ','), 'include' => false, 'external' => false);
$files_paths = '';
}
$result[] = array('src' => $file_absolute_path, 'include' => true);
continue;
} elseif ($minify) {
if (strlen($files_paths) > ((int)MINIFY_MAX_URL_LENGHT - 20)) {
$result[] = array('src' => trim($files_paths, ','), 'include' => false);
$files_paths = $file_relative_path.',';
} else {
//$result[] = array('string' => sprintf($request_string, $file_relative_path), 'include' => false);
$files_paths .= $file_relative_path.',';
}
} else {
$result[] = array('src' => $file_relative_path, 'include' => false, 'external' => false);
}
}
// one last time
if (!empty($files_paths) && $minify) {
$result[] = array('src' => trim($files_paths, ','), 'include' => false, 'external' => false);
}
return $result;
}
/**
* 
*/
public function header(){
return $this->processCssJsFiles();
}
}