website_jukni/dokuwiki/lib/exe/js.php
2017-12-29 15:51:59 +01:00

483 lines
16 KiB
PHP

<?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");
if(!defined('DOKU_DISABLE_GZIP_OUTPUT')) define('DOKU_DISABLE_GZIP_OUTPUT',1); // we gzip ourself here
require_once(DOKU_INC.'inc/init.php');
// Main (don't run when UNIT test)
if(!defined('SIMPLE_TEST')){
header('Content-Type: application/javascript; charset=utf-8');
js_out();
}
// ---------------------- functions ------------------------------
/**
* Output all needed JavaScript
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function js_out(){
global $conf;
global $lang;
global $config_cascade;
global $INPUT;
// decide from where to get the template
$tpl = trim(preg_replace('/[^\w-]+/','',$INPUT->str('t')));
if(!$tpl) $tpl = $conf['template'];
// array of core files
$files = array(
DOKU_INC.'lib/scripts/jquery/jquery.cookie.js',
DOKU_INC.'inc/lang/'.$conf['lang'].'/jquery.ui.datepicker.js',
DOKU_INC."lib/scripts/fileuploader.js",
DOKU_INC."lib/scripts/fileuploaderextended.js",
DOKU_INC.'lib/scripts/helpers.js',
DOKU_INC.'lib/scripts/delay.js',
DOKU_INC.'lib/scripts/cookie.js',
DOKU_INC.'lib/scripts/script.js',
DOKU_INC.'lib/scripts/qsearch.js',
DOKU_INC.'lib/scripts/tree.js',
DOKU_INC.'lib/scripts/index.js',
DOKU_INC.'lib/scripts/textselection.js',
DOKU_INC.'lib/scripts/toolbar.js',
DOKU_INC.'lib/scripts/edit.js',
DOKU_INC.'lib/scripts/editor.js',
DOKU_INC.'lib/scripts/locktimer.js',
DOKU_INC.'lib/scripts/linkwiz.js',
DOKU_INC.'lib/scripts/media.js',
DOKU_INC.'lib/scripts/compatibility.js',
# disabled for FS#1958 DOKU_INC.'lib/scripts/hotkeys.js',
DOKU_INC.'lib/scripts/behaviour.js',
DOKU_INC.'lib/scripts/page.js',
tpl_incdir($tpl).'script.js',
);
// add possible plugin scripts and userscript
$files = array_merge($files,js_pluginscripts());
if(!empty($config_cascade['userscript']['default'])) {
foreach($config_cascade['userscript']['default'] as $userscript) {
$files[] = $userscript;
}
}
// Let plugins decide to either put more scripts here or to remove some
trigger_event('JS_SCRIPT_LIST', $files);
// The generated script depends on some dynamic options
$cache = new cache('scripts'.$_SERVER['HTTP_HOST'].$_SERVER['SERVER_PORT'].md5(serialize($files)),'.js');
$cache->_event = 'JS_CACHE_USE';
$cache_files = array_merge($files, getConfigFiles('main'));
$cache_files[] = __FILE__;
// check cache age & handle conditional request
// This may exit if a cache can be used
$cache_ok = $cache->useCache(array('files' => $cache_files));
http_cached($cache->cache, $cache_ok);
// start output buffering and build the script
ob_start();
$json = new JSON();
// add some global variables
print "var DOKU_BASE = '".DOKU_BASE."';";
print "var DOKU_TPL = '".tpl_basedir($tpl)."';";
print "var DOKU_COOKIE_PARAM = " . $json->encode(
array(
'path' => empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'],
'secure' => $conf['securecookie'] && is_ssl()
)).";";
// FIXME: Move those to JSINFO
print "var DOKU_UHN = ".((int) useHeading('navigation')).";";
print "var DOKU_UHC = ".((int) useHeading('content')).";";
// load JS specific translations
$lang['js']['plugins'] = js_pluginstrings();
$templatestrings = js_templatestrings($tpl);
if(!empty($templatestrings)) {
$lang['js']['template'] = $templatestrings;
}
echo 'LANG = '.$json->encode($lang['js']).";\n";
// load toolbar
toolbar_JSdefines('toolbar');
// load files
foreach($files as $file){
if(!file_exists($file)) continue;
$ismin = (substr($file,-7) == '.min.js');
$debugjs = ($conf['allowdebug'] && strpos($file, DOKU_INC.'lib/scripts/') !== 0);
echo "\n\n/* XXXXXXXXXX begin of ".str_replace(DOKU_INC, '', $file) ." XXXXXXXXXX */\n\n";
if($ismin) echo "\n/* BEGIN NOCOMPRESS */\n";
if ($debugjs) echo "\ntry {\n";
js_load($file);
if ($debugjs) echo "\n} catch (e) {\n logError(e, '".str_replace(DOKU_INC, '', $file)."');\n}\n";
if($ismin) echo "\n/* END NOCOMPRESS */\n";
echo "\n\n/* XXXXXXXXXX end of " . str_replace(DOKU_INC, '', $file) . " XXXXXXXXXX */\n\n";
}
// init stuff
if($conf['locktime'] != 0){
js_runonstart("dw_locktimer.init(".($conf['locktime'] - 60).",".$conf['usedraft'].")");
}
// init hotkeys - must have been done after init of toolbar
# disabled for FS#1958 js_runonstart('initializeHotkeys()');
// end output buffering and get contents
$js = ob_get_contents();
ob_end_clean();
// strip any source maps
stripsourcemaps($js);
// compress whitespace and comments
if($conf['compress']){
$js = js_compress($js);
}
$js .= "\n"; // https://bugzilla.mozilla.org/show_bug.cgi?id=316033
http_cached_finish($cache->cache, $js);
}
/**
* Load the given file, handle include calls and print it
*
* @author Andreas Gohr <andi@splitbrain.org>
*
* @param string $file filename path to file
*/
function js_load($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]){
$base = utf8_basename($ifile);
if(array_key_exists($base, $loaded) && $loaded[$base] === true){
$data = str_replace($match[0], '' ,$data);
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\n";
}
/**
* Returns a list of possible Plugin Scripts (no existance check here)
*
* @author Andreas Gohr <andi@splitbrain.org>
*
* @return array
*/
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>
*
* @return array
*/
function js_pluginstrings() {
global $conf, $config_cascade;
$pluginstrings = array();
$plugins = plugin_list();
foreach($plugins as $p) {
$path = DOKU_PLUGIN . $p . '/lang/';
if(isset($lang)) unset($lang);
if(file_exists($path . "en/lang.php")) {
include $path . "en/lang.php";
}
foreach($config_cascade['lang']['plugin'] as $config_file) {
if(file_exists($config_file . $p . '/en/lang.php')) {
include($config_file . $p . '/en/lang.php');
}
}
if(isset($conf['lang']) && $conf['lang'] != 'en') {
if(file_exists($path . $conf['lang'] . "/lang.php")) {
include($path . $conf['lang'] . '/lang.php');
}
foreach($config_cascade['lang']['plugin'] as $config_file) {
if(file_exists($config_file . $p . '/' . $conf['lang'] . '/lang.php')) {
include($config_file . $p . '/' . $conf['lang'] . '/lang.php');
}
}
}
if(isset($lang['js'])) {
$pluginstrings[$p] = $lang['js'];
}
}
return $pluginstrings;
}
/**
* Return an two-dimensional array with strings from the language file of current active template.
*
* - $lang['js'] must be an array.
* - Nothing is returned for template without an entry for $lang['js']
*
* @param string $tpl
* @return array
*/
function js_templatestrings($tpl) {
global $conf, $config_cascade;
$path = tpl_incdir() . 'lang/';
$templatestrings = array();
if(file_exists($path . "en/lang.php")) {
include $path . "en/lang.php";
}
foreach($config_cascade['lang']['template'] as $config_file) {
if(file_exists($config_file . $conf['template'] . '/en/lang.php')) {
include($config_file . $conf['template'] . '/en/lang.php');
}
}
if(isset($conf['lang']) && $conf['lang'] != 'en' && file_exists($path . $conf['lang'] . "/lang.php")) {
include $path . $conf['lang'] . "/lang.php";
}
if(isset($conf['lang']) && $conf['lang'] != 'en') {
if(file_exists($path . $conf['lang'] . "/lang.php")) {
include $path . $conf['lang'] . "/lang.php";
}
foreach($config_cascade['lang']['template'] as $config_file) {
if(file_exists($config_file . $conf['template'] . '/' . $conf['lang'] . '/lang.php')) {
include($config_file . $conf['template'] . '/' . $conf['lang'] . '/lang.php');
}
}
}
if(isset($lang['js'])) {
$templatestrings[$tpl] = $lang['js'];
}
return $templatestrings;
}
/**
* Escapes a String to be embedded in a JavaScript call, keeps \n
* as newline
*
* @author Andreas Gohr <andi@splitbrain.org>
*
* @param string $string
* @return string
*/
function js_escape($string){
return str_replace('\\\\n','\\n',addslashes($string));
}
/**
* Adds the given JavaScript code to the window.onload() event
*
* @author Andreas Gohr <andi@splitbrain.org>
*
* @param string $func
*/
function js_runonstart($func){
echo "jQuery(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/
*
* @param string $s
* @return string
*/
function js_compress($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'\"[]";
// items which need a space if the sign before and after whitespace is equal.
// E.g. '+ ++' may not be compressed to '+++' --> syntax error.
$ops = "+-";
$regex_starters = array("(", "=", "[", "," , ":", "!", "&", "|");
$whitespaces_chars = array(" ", "\t", "\n", "\r", "\0", "\x0B");
while($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);
// check if this is a NOCOMPRESS comment
if(substr($s, $i, $endC+2-$i) == '/* BEGIN NOCOMPRESS */'){
$endNC = strpos($s, '/* END NOCOMPRESS */', $endC+2);
if($endNC === false) trigger_error('Found invalid NOCOMPRESS comment', E_USER_ERROR);
// verbatim copy contents, trimming but putting it on its own line
$result .= "\n".trim(substr($s, $i + 22, $endNC - ($i + 22)))."\n"; // BEGIN comment = 22 chars
$i = $endNC + 20; // END comment = 20 chars
}else{
$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
$j = 1;
while(in_array($s{$i-$j}, $whitespaces_chars)){
$j = $j + 1;
}
if( in_array($s{$i-$j}, $regex_starters) ){
// yes, this is an re
// now move forward and find the end of it
$j = 1;
while($s{$i+$j} != '/'){
if($s{$i+$j} == '\\') $j = $j + 2;
else $j++;
}
$result .= substr($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;
}
}
$string = substr($s,$i,$j+1);
// remove multiline markers:
$string = str_replace("\\\n",'',$string);
$result .= $string;
$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;
}
}
$string = substr($s,$i,$j+1);
// remove multiline markers:
$string = str_replace("\\\n",'',$string);
$result .= $string;
$i = $i + $j + 1;
continue;
}
// whitespaces
if( $ch == ' ' || $ch == "\r" || $ch == "\n" || $ch == "\t" ){
$lch = substr($result,-1);
// Only consider deleting whitespace if the signs before and after
// are not equal and are not an operator which may not follow itself.
if ($i+1 < $slen && ((!$lch || $s[$i+1] == ' ')
|| $lch != $s[$i+1]
|| strpos($ops,$s[$i+1]) === false)) {
// leading spaces
if($i+1 < $slen && (strpos($chars,$s[$i+1]) !== false)){
$i = $i + 1;
continue;
}
// trailing spaces
// if this ch is space AND the last char processed
// is special, then skip the space
if($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 :