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<?php
/**
* DokuWiki JavaScript creator
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Andreas Gohr <andi@splitbrain.org>
*/
if(!defined('DOKU_INC')) define('DOKU_INC',dirname(__FILE__).'/../../');
if(!defined('NOSESSION')) define('NOSESSION',true); // we do not use a session or authentication here (better caching)
if(!defined('NL')) define('NL',"\n");
require_once(DOKU_INC.'inc/init.php');
require_once(DOKU_INC.'inc/pageutils.php');
require_once(DOKU_INC.'inc/io.php');
require_once(DOKU_INC.'inc/JSON.php');
// Main (don't run when UNIT test)
if(!defined('SIMPLE_TEST')){
header('Content-Type: text/javascript; charset=utf-8');
js_out();
}
// ---------------------- functions ------------------------------
/**
* Output all needed JavaScript
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function js_out(){
global $conf;
global $lang;
$edit = (bool) $_REQUEST['edit']; // edit or preview mode?
$write = (bool) $_REQUEST['write']; // writable?
// The generated script depends on some dynamic options
$cache = getCacheName('scripts'.$edit.'x'.$write,'.js');
// Array of needed files
$files = array(
DOKU_INC.'lib/scripts/helpers.js',
DOKU_INC.'lib/scripts/events.js',
DOKU_INC.'lib/scripts/cookie.js',
DOKU_INC.'lib/scripts/script.js',
DOKU_INC.'lib/scripts/tw-sack.js',
DOKU_INC.'lib/scripts/ajax.js',
DOKU_INC.'lib/scripts/index.js',
);
if($edit){
if($write){
$files[] = DOKU_INC.'lib/scripts/edit.js';
}
$files[] = DOKU_INC.'lib/scripts/media.js';
}
$files[] = DOKU_TPLINC.'script.js';
// get possible plugin scripts
$plugins = js_pluginscripts();
// check cache age & handle conditional request
header('Cache-Control: public, max-age=3600');
header('Pragma: public');
if(js_cacheok($cache,array_merge($files,$plugins))){
http_conditionalRequest(filemtime($cache));
if($conf['allowdebug']) header("X-CacheUsed: $cache");
readfile($cache);
return;
} else {
http_conditionalRequest(time());
}
// start output buffering and build the script
ob_start();
// add some global variables
print "var DOKU_BASE = '".DOKU_BASE."';";
print "var DOKU_TPL = '".DOKU_TPL."';";
//FIXME: move thes into LANG
print "var alertText = '".js_escape($lang['qb_alert'])."';";
print "var notSavedYet = '".js_escape($lang['notsavedyet'])."';";
print "var reallyDel = '".js_escape($lang['del_confirm'])."';";
// load JS strings form plugins
$lang['js']['plugins'] = js_pluginstrings();
// load JS specific translations
$json = new JSON();
echo 'LANG = '.$json->encode($lang['js']).";\n";
// load files
foreach($files as $file){
echo "\n\n/* XXXXXXXXXX begin of $file XXXXXXXXXX */\n\n";
js_load($file);
echo "\n\n/* XXXXXXXXXX end of $file XXXXXXXXXX */\n\n";
}
// init stuff
js_runonstart("ajax_qsearch.init('qsearch__in','qsearch__out')");
js_runonstart("addEvent(document,'click',closePopups)");
js_runonstart('addTocToggle()');
if($edit){
// size controls
js_runonstart("initSizeCtl('size__ctl','wiki__text')");
if($write){
require_once(DOKU_INC.'inc/toolbar.php');
toolbar_JSdefines('toolbar');
js_runonstart("initToolbar('tool__bar','wiki__text',toolbar)");
// add pageleave check
js_runonstart("initChangeCheck('".js_escape($lang['notsavedyet'])."')");
// add lock timer
js_runonstart("locktimer.init(".($conf['locktime'] - 60).",'".js_escape($lang['willexpire'])."',".$conf['usedraft'].")");
}
}
// load plugin scripts (suppress warnings for missing ones)
foreach($plugins as $plugin){
if (@file_exists($plugin)) {
echo "\n\n/* XXXXXXXXXX begin of $plugin XXXXXXXXXX */\n\n";
js_load($plugin);
echo "\n\n/* XXXXXXXXXX end of $plugin XXXXXXXXXX */\n\n";
}
}
// load user script
@readfile(DOKU_CONF.'userscript.js');
// add scroll event and tooltip rewriting
js_runonstart('updateAccessKeyTooltip()');
js_runonstart('scrollToMarker()');
js_runonstart('focusMarker()');
// end output buffering and get contents
$js = ob_get_contents();
ob_end_clean();
// compress whitespace and comments
if($conf['compress']){
$js = js_compress($js);
}
$js .= "\n"; // https://bugzilla.mozilla.org/show_bug.cgi?id=316033
// save cache file
io_saveFile($cache,$js);
// finally send output
print $js;
}
/**
* Load the given file, handle include calls and print it
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function js_load($file){
if(!@file_exists($file)) return;
static $loaded = array();
$data = io_readFile($file);
while(preg_match('#/\*\s*DOKUWIKI:include(_once)?\s+([\w\./]+)\s*\*/#',$data,$match)){
$ifile = $match[2];
// is it a include_once?
if($match[1]){
$base = basename($ifile);
if($loaded[$base]) continue;
$loaded[$base] = true;
}
if($ifile{0} != '/') $ifile = dirname($file).'/'.$ifile;
if(@file_exists($ifile)){
$idata = io_readFile($ifile);
}else{
$idata = '';
}
$data = str_replace($match[0],$idata,$data);
}
echo $data;
}
/**
* Checks if a JavaScript Cache file still is valid
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function js_cacheok($cache,$files){
if($_REQUEST['purge']) return false; //support purge request
$ctime = @filemtime($cache);
if(!$ctime) return false; //There is no cache
// some additional files to check
$files[] = DOKU_CONF.'dokuwiki.php';
$files[] = DOKU_CONF.'local.php';
$files[] = DOKU_CONF.'userscript.js';
$files[] = __FILE__;
// now walk the files
foreach($files as $file){
if(@filemtime($file) > $ctime){
return false;
}
}
return true;
}
/**
* Returns a list of possible Plugin Scripts (no existance check here)
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function js_pluginscripts(){
$list = array();
$plugins = plugin_list();
foreach ($plugins as $p){
$list[] = DOKU_PLUGIN."$p/script.js";
}
return $list;
}
/**
* Return an two-dimensional array with strings from the language file of each plugin.
*
* - $lang['js'] must be an array.
* - Nothing is returned for plugins without an entry for $lang['js']
*
* @author Gabriel Birke <birke@d-scribe.de>
*/
function js_pluginstrings()
{
global $conf;
$pluginstrings = array();
$plugins = plugin_list();
foreach ($plugins as $p){
if (isset($lang)) unset($lang);
if (@file_exists(DOKU_PLUGIN."$p/lang/en/lang.php")) {
include DOKU_PLUGIN."$p/lang/en/lang.php";
}
if (isset($conf['lang']) && $conf['lang']!='en' && @file_exists(DOKU_PLUGIN."$p/lang/".$conf['lang']."/lang.php")) {
include DOKU_PLUGIN."$p/lang/".$conf['lang']."/lang.php";
}
if (isset($lang['js'])) {
$pluginstrings[$p] = $lang['js'];
}
}
return $pluginstrings;
}
/**
* Escapes a String to be embedded in a JavaScript call, keeps \n
* as newline
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function js_escape($string){
return str_replace('\\\\n','\\n',addslashes($string));
}
/**
* Adds the given JavaScript code to the window.onload() event
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function js_runonstart($func){
echo "addInitEvent(function(){ $func; });".NL;
}
/**
* Strip comments and whitespaces from given JavaScript Code
*
* This is a port of Nick Galbreath's python tool jsstrip.py which is
* released under BSD license. See link for original code.
*
* @author Nick Galbreath <nickg@modp.com>
* @author Andreas Gohr <andi@splitbrain.org>
* @link http://code.google.com/p/jsstrip/
*/
function js_compress($s){
$s = ltrim($s); // strip all initial whitespace
$s .= "\n";
$i = 0; // char index for input string
$j = 0; // char forward index for input string
$line = 0; // line number of file (close to it anyways)
$slen = strlen($s); // size of input string
$lch = ''; // last char added
$result = ''; // we store the final result here
// items that don't need spaces next to them
$chars = "^&|!+\-*\/%=\?:;,{}()<>% \t\n\r'\"[]";
while($i < $slen){
// skip all "boring" characters. This is either
// reserved word (e.g. "for", "else", "if") or a
// variable/object/method (e.g. "foo.color")
while ($i < $slen && (strpos($chars,$s[$i]) === false) ){
$result .= $s{$i};
$i = $i + 1;
}
$ch = $s{$i};
// multiline comments (keeping IE conditionals)
if($ch == '/' && $s{$i+1} == '*' && $s{$i+2} != '@'){
$endC = strpos($s,'*/',$i+2);
if($endC === false) trigger_error('Found invalid /*..*/ comment', E_USER_ERROR);
$i = $endC + 2;
continue;
}
// singleline
if($ch == '/' && $s{$i+1} == '/'){
$endC = strpos($s,"\n",$i+2);
if($endC === false) trigger_error('Invalid comment', E_USER_ERROR);
$i = $endC;
continue;
}
// tricky. might be an RE
if($ch == '/'){
// rewind, skip white space
$j = 1;
while($s{$i-$j} == ' '){
$j = $j + 1;
}
if( ($s{$i-$j} == '=') || ($s{$i-$j} == '(') ){
// yes, this is an re
// now move forward and find the end of it
$j = 1;
while($s{$i+$j} != '/'){
while( ($s{$i+$j} != '\\') && ($s{$i+$j} != '/')){
$j = $j + 1;
}
if($s{$i+$j} == '\\') $j = $j + 2;
}
$result .= substr($s,$i,$j+1);
$i = $i + $j + 1;
continue;
}
}
// double quote strings
if($ch == '"'){
$j = 1;
while( $s{$i+$j} != '"' && ($i+$j < $slen)){
if( $s{$i+$j} == '\\' && ($s{$i+$j+1} == '"' || $s{$i+$j+1} == '\\') ){
$j += 2;
}else{
$j += 1;
}
}
$result .= substr($s,$i,$j+1);
$i = $i + $j + 1;
continue;
}
// single quote strings
if($ch == "'"){
$j = 1;
while( $s{$i+$j} != "'" && ($i+$j < $slen)){
if( $s{$i+$j} == '\\' && ($s{$i+$j+1} == "'" || $s{$i+$j+1} == '\\') ){
$j += 2;
}else{
$j += 1;
}
}
$result .= substr($s,$i,$j+1);
$i = $i + $j + 1;
continue;
}
// whitespaces
if( $ch == ' ' || $ch == "\r" || $ch == "\n" || $ch == "\t" ){
// leading spaces
if($i+1 < $slen && (strpos($chars,$s[$i+1]) !== false)){
$i = $i + 1;
continue;
}
// trailing spaces
// if this ch is space AND the last char processed
// is special, then skip the space
$lch = substr($result,-1);
if($lch && (strpos($chars,$lch) !== false)){
$i = $i + 1;
continue;
}
// else after all of this convert the "whitespace" to
// a single space. It will get appended below
$ch = ' ';
}
// other chars
$result .= $ch;
$i = $i + 1;
}
return trim($result);
}
//Setup VIM: ex: et ts=4 enc=utf-8 :
?>
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