mirror of
https://github.com/php/web-wiki.git
synced 2025-08-13 13:33:46 +00:00
389 lines
12 KiB
PHP
389 lines
12 KiB
PHP
<?php
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/**
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* DokuWiki JavaScript creator
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
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if(!defined('NOSESSION')) define('NOSESSION',true); // we do not use a session or authentication here (better caching)
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if(!defined('NL')) define('NL',"\n");
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require_once(DOKU_INC.'inc/init.php');
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require_once(DOKU_INC.'inc/pageutils.php');
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require_once(DOKU_INC.'inc/io.php');
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require_once(DOKU_INC.'inc/JSON.php');
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// Main (don't run when UNIT test)
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if(!defined('SIMPLE_TEST')){
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header('Content-Type: text/javascript; charset=utf-8');
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js_out();
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}
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// ---------------------- functions ------------------------------
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/**
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* Output all needed JavaScript
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function js_out(){
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global $conf;
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global $lang;
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$edit = (bool) $_REQUEST['edit']; // edit or preview mode?
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$write = (bool) $_REQUEST['write']; // writable?
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// The generated script depends on some dynamic options
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$cache = getCacheName('scripts'.$edit.'x'.$write,'.js');
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// Array of needed files
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$files = array(
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DOKU_INC.'lib/scripts/helpers.js',
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DOKU_INC.'lib/scripts/events.js',
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DOKU_INC.'lib/scripts/cookie.js',
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DOKU_INC.'lib/scripts/script.js',
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DOKU_INC.'lib/scripts/tw-sack.js',
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DOKU_INC.'lib/scripts/ajax.js',
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);
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if($edit){
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if($write){
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$files[] = DOKU_INC.'lib/scripts/edit.js';
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if($conf['spellchecker']){
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$files[] = DOKU_INC.'lib/scripts/spellcheck.js';
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}
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}
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$files[] = DOKU_INC.'lib/scripts/media.js';
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}
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$files[] = DOKU_TPLINC.'script.js';
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// get possible plugin scripts
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$plugins = js_pluginscripts();
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// check cache age & handle conditional request
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header('Cache-Control: public, max-age=3600');
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header('Pragma: public');
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if(js_cacheok($cache,array_merge($files,$plugins))){
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http_conditionalRequest(filemtime($cache));
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if($conf['allowdebug']) header("X-CacheUsed: $cache");
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readfile($cache);
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return;
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} else {
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http_conditionalRequest(time());
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}
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// start output buffering and build the script
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ob_start();
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// add some global variables
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print "var DOKU_BASE = '".DOKU_BASE."';";
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print "var DOKU_TPL = '".DOKU_TPL."';";
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//FIXME: move thes into LANG
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print "var alertText = '".js_escape($lang['qb_alert'])."';";
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print "var notSavedYet = '".js_escape($lang['notsavedyet'])."';";
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print "var reallyDel = '".js_escape($lang['del_confirm'])."';";
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// load JS specific translations
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$json = new JSON();
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echo 'LANG = '.$json->encode($lang['js']).";\n";
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// load files
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foreach($files as $file){
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echo "\n\n/* XXXXXXXXXX begin of $file XXXXXXXXXX */\n\n";
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js_load($file);
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echo "\n\n/* XXXXXXXXXX end of $file XXXXXXXXXX */\n\n";
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}
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// init stuff
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js_runonstart("ajax_qsearch.init('qsearch__in','qsearch__out')");
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js_runonstart("addEvent(document,'click',closePopups)");
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js_runonstart('addTocToggle()');
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if($edit){
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// size controls
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js_runonstart("initSizeCtl('size__ctl','wiki__text')");
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if($write){
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require_once(DOKU_INC.'inc/toolbar.php');
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toolbar_JSdefines('toolbar');
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js_runonstart("initToolbar('tool__bar','wiki__text',toolbar)");
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// add pageleave check
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js_runonstart("initChangeCheck('".js_escape($lang['notsavedyet'])."')");
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// add lock timer
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js_runonstart("locktimer.init(".($conf['locktime'] - 60).",'".js_escape($lang['willexpire'])."',".$conf['usedraft'].")");
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// load spell checker
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if($conf['spellchecker']){
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js_runonstart("ajax_spell.init('".
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js_escape($lang['spell_start'])."','".
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js_escape($lang['spell_stop'])."','".
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js_escape($lang['spell_wait'])."','".
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js_escape($lang['spell_noerr'])."','".
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js_escape($lang['spell_nosug'])."','".
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js_escape($lang['spell_change'])."')");
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}
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}
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}
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// load plugin scripts (suppress warnings for missing ones)
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foreach($plugins as $plugin){
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if (@file_exists($plugin)) {
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echo "\n\n/* XXXXXXXXXX begin of $plugin XXXXXXXXXX */\n\n";
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js_load($plugin);
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echo "\n\n/* XXXXXXXXXX end of $plugin XXXXXXXXXX */\n\n";
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}
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}
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// load user script
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@readfile(DOKU_CONF.'userscript.js');
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// add scroll event and tooltip rewriting
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js_runonstart('updateAccessKeyTooltip()');
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js_runonstart('scrollToMarker()');
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js_runonstart('focusMarker()');
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// end output buffering and get contents
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$js = ob_get_contents();
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ob_end_clean();
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// compress whitespace and comments
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if($conf['compress']){
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$js = js_compress($js);
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}
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$js .= "\n"; // https://bugzilla.mozilla.org/show_bug.cgi?id=316033
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// save cache file
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io_saveFile($cache,$js);
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// finally send output
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print $js;
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}
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/**
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* Load the given file, handle include calls and print it
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function js_load($file){
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if(!@file_exists($file)) return;
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static $loaded = array();
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$data = io_readFile($file);
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while(preg_match('#/\*\s*DOKUWIKI:include(_once)?\s+([\w\./]+)\s*\*/#',$data,$match)){
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$ifile = $match[2];
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// is it a include_once?
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if($match[1]){
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$base = basename($ifile);
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if($loaded[$base]) continue;
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$loaded[$base] = true;
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}
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if($ifile{0} != '/') $ifile = dirname($file).'/'.$ifile;
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if(@file_exists($ifile)){
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$idata = io_readFile($ifile);
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}else{
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$idata = '';
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}
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$data = str_replace($match[0],$idata,$data);
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}
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echo $data;
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}
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/**
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* Checks if a JavaScript Cache file still is valid
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function js_cacheok($cache,$files){
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if($_REQUEST['purge']) return false; //support purge request
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$ctime = @filemtime($cache);
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if(!$ctime) return false; //There is no cache
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// some additional files to check
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$files[] = DOKU_CONF.'dokuwiki.php';
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$files[] = DOKU_CONF.'local.php';
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$files[] = DOKU_CONF.'userscript.js';
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$files[] = __FILE__;
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// now walk the files
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foreach($files as $file){
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if(@filemtime($file) > $ctime){
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return false;
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}
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}
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return true;
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}
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/**
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* Returns a list of possible Plugin Scripts (no existance check here)
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function js_pluginscripts(){
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$list = array();
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$plugins = plugin_list();
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foreach ($plugins as $p){
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$list[] = DOKU_PLUGIN."$p/script.js";
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}
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return $list;
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}
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/**
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* Escapes a String to be embedded in a JavaScript call, keeps \n
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* as newline
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function js_escape($string){
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return str_replace('\\\\n','\\n',addslashes($string));
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}
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/**
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* Adds the given JavaScript code to the window.onload() event
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function js_runonstart($func){
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echo "addInitEvent(function(){ $func; });".NL;
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}
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/**
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* Strip comments and whitespaces from given JavaScript Code
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*
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* This is a port of Nick Galbreath's python tool jsstrip.py which is
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* released under BSD license. See link for original code.
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*
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* @author Nick Galbreath <nickg@modp.com>
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* @author Andreas Gohr <andi@splitbrain.org>
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* @link http://code.google.com/p/jsstrip/
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*/
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function js_compress($s){
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$s = ltrim($s); // strip all initial whitespace
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$s .= "\n";
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$i = 0; // char index for input string
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$j = 0; // char forward index for input string
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$line = 0; // line number of file (close to it anyways)
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$slen = strlen($s); // size of input string
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$lch = ''; // last char added
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$result = ''; // we store the final result here
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// items that don't need spaces next to them
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$chars = "^&|!+\-*\/%=\?:;,{}()<>% \t\n\r'\"[]";
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while($i < $slen){
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// skip all "boring" characters. This is either
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// reserved word (e.g. "for", "else", "if") or a
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// variable/object/method (e.g. "foo.color")
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while ($i < $slen && (strpos($chars,$s[$i]) === false) ){
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$result .= $s{$i};
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$i = $i + 1;
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}
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$ch = $s{$i};
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// multiline comments (keeping IE conditionals)
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if($ch == '/' && $s{$i+1} == '*' && $s{$i+2} != '@'){
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$endC = strpos($s,'*/',$i+2);
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if($endC === false) trigger_error('Found invalid /*..*/ comment', E_USER_ERROR);
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$i = $endC + 2;
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continue;
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}
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// singleline
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if($ch == '/' && $s{$i+1} == '/'){
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$endC = strpos($s,"\n",$i+2);
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if($endC === false) trigger_error('Invalid comment', E_USER_ERROR);
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$i = $endC;
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continue;
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}
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// tricky. might be an RE
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if($ch == '/'){
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// rewind, skip white space
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$j = 1;
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while($s{$i-$j} == ' '){
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$j = $j + 1;
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}
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if( ($s{$i-$j} == '=') || ($s{$i-$j} == '(') ){
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// yes, this is an re
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// now move forward and find the end of it
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$j = 1;
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while($s{$i+$j} != '/'){
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while( ($s{$i+$j} != '\\') && ($s{$i+$j} != '/')){
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$j = $j + 1;
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}
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if($s{$i+$j} == '\\') $j = $j + 2;
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}
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$result .= substr($s,$i,$j+1);
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$i = $i + $j + 1;
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continue;
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}
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}
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// double quote strings
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if($ch == '"'){
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$j = 1;
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while( $s{$i+$j} != '"' && ($i+$j < $slen)){
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if( $s{$i+$j} == '\\' && ($s{$i+$j+1} == '"' || $s{$i+$j+1} == '\\') ){
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$j += 2;
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}else{
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$j += 1;
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}
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}
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$result .= substr($s,$i,$j+1);
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$i = $i + $j + 1;
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continue;
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}
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// single quote strings
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if($ch == "'"){
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$j = 1;
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while( $s{$i+$j} != "'" && ($i+$j < $slen)){
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if( $s{$i+$j} == '\\' && ($s{$i+$j+1} == "'" || $s{$i+$j+1} == '\\') ){
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$j += 2;
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}else{
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$j += 1;
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}
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}
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$result .= substr($s,$i,$j+1);
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$i = $i + $j + 1;
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continue;
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}
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// whitespaces
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if( $ch == ' ' || $ch == "\r" || $ch == "\n" || $ch == "\t" ){
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// leading spaces
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if($i+1 < $slen && (strpos($chars,$s[$i+1]) !== false)){
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$i = $i + 1;
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continue;
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}
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// trailing spaces
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// if this ch is space AND the last char processed
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// is special, then skip the space
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$lch = substr($result,-1);
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if($lch && (strpos($chars,$lch) !== false)){
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$i = $i + 1;
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continue;
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}
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// else after all of this convert the "whitespace" to
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// a single space. It will get appended below
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$ch = ' ';
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}
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// other chars
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$result .= $ch;
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$i = $i + 1;
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}
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return trim($result);
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}
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//Setup VIM: ex: et ts=4 enc=utf-8 :
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?>
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