diff options
Diffstat (limited to 'lib/exe/js.php')
-rw-r--r-- | lib/exe/js.php | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/lib/exe/js.php b/lib/exe/js.php new file mode 100644 index 000000000..9708dbc0d --- /dev/null +++ b/lib/exe/js.php @@ -0,0 +1,331 @@ +<?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',realpath(dirname(__FILE__).'/../../').'/'); +define('NOSESSION',true); // we do not use a session or authentication here (better caching) +require_once(DOKU_INC.'inc/init.php'); +require_once(DOKU_INC.'inc/pageutils.php'); +require_once(DOKU_INC.'inc/io.php'); + +// Main (don't run when UNIT test) +if(!defined('SIMPLE_TEST')){ + header('Content-Type: text/javascript; charset=utf-8'); + js_out(); + js_dynamicout(); +} + + +// ---------------------- 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.$write,'.js'); + + // Array of needed files + $files = array( + DOKU_INC.'lib/scripts/events.js', + DOKU_INC.'lib/scripts/script.js', + DOKU_INC.'lib/scripts/tw-sack.js', + DOKU_INC.'lib/scripts/ajax.js', + DOKU_INC.'lib/scripts/domLib.js', + DOKU_INC.'lib/scripts/domTT.js', + ); + if($edit && $write){ + $files[] = DOKU_INC.'lib/scripts/edit.js'; + if($conf['spellchecker']){ + $files[] = DOKU_INC.'lib/scripts/spellcheck.js'; + } + } + + // get possible plugin scripts + $plugins = js_pluginscripts(); + + // check cache age here + if(js_cacheok($cache,array_merge($files,$plugins))){ + readfile($cache); + return; + } + + // start output buffering and build the script + ob_start(); + + // add some translation strings and global variables + print "var alertText = '".str_replace('\\\\n','\\n',addslashes($lang['qb_alert']))."';"; + print "var notSavedYet = '".str_replace('\\\\n','\\n',addslashes($lang['notsavedyet']))."';"; + print "var DOKU_BASE = '".DOKU_BASE."';"; + + // load files + foreach($files as $file){ + readfile($file); + } + + // init stuff + js_runonstart("ajax_qsearch.init('qsearch_in','qsearch_out')"); + js_runonstart("addEvent(document,'click',closePopups)"); + + if($edit){ + // size controls + js_runonstart("initSizeCtl('sizectl','wikitext')"); + + if($write){ + require_once(DOKU_INC.'inc/toolbar.php'); + toolbar_JSdefines('toolbar'); + js_runonstart("initToolbar('toolbar','wikitext',toolbar)"); + + // add pageleave check + js_runonstart("initChangeCheck('".js_escape($lang['notsavedyet'])."')"); + + // add lock timer + js_runonstart("init_locktimer(".($conf['locktime']-60).",'".js_escape($lang['willexpire'])."')"); + + // load spell checker + if($conf['spellchecker']){ + js_runonstart("ajax_spell.init('". + js_escape($lang['spell_start'])."','". + js_escape($lang['spell_stop'])."','". + js_escape($lang['spell_wait'])."','". + js_escape($lang['spell_noerr'])."','". + js_escape($lang['spell_nosug'])."','". + js_escape($lang['spell_change'])."')"); + } + } + } + + // load plugin scripts (suppress warnings for missing ones) + foreach($plugins as $plugin){ + @readfile($plugin); + } + + // load user script + @readfile(DOKU_CONF.'userscript.js'); + + // end output buffering and get contents + $js = ob_get_contents(); + ob_end_clean(); + + // compress whitespace and comments + if($conf['compress']){ + $js = js_compress($js); + } + + // save cache file + io_saveFile($cache,$js); + + // finally send output + print $js; +} + +/** + * Adds some dynamic JavaScript using the readonly Session + * + * @author Andreas Gohr <andi@splitbrain.org> + */ +function js_dynamicout(){ + $edit = (bool) $_REQUEST['edit']; // edit or preview mode? + $write = (bool) $_REQUEST['write']; // writable? + $sig = (bool) $_REQUEST['sig']; // show sig button? + if($edit && $write && $sig){ + require_once(DOKU_INC.'inc/toolbar.php'); + toolbar_addsigbutton('toolbar'); + } +} + +/** + * Checks if a JavaScript Cache file still is valid + * + * @author Andreas Gohr <andi@splitbrain.org> + */ +function js_cacheok($cache,$files){ + $ctime = @filemtime($cache); + if(!$ctime) return false; //There is no cache + + // some additional files to check + $files[] = DOKU_CONF.'dokuwiki.conf'; + $files[] = DOKU_CONF.'local.conf'; + $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 $list; +} + +/** + * Escapes a String to be embedded in a JavaScript call, keeps \n + * as newline + * + * @author Andreas Gohr <andi@splitbrain.org> + */ +function js_escape($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){ + print "addEvent(window,'load',function(){ $func; });"; +} + +/** + * Strip comments and whitespaces from given JavaScript Code + * + * This is a rewrite of Nick Galbreaths python tool jsstrip.py which is + * released under BSD license. See link for original code. + * + * @author Nick Galbreath <nickg@modp.com> + * @author Andreas Gohr <andi@splitbrain.org> + * @link http://modp.com/release/jsstrip/ + */ +function js_compress($s){ + $i = 0; + $line = 0; + $s .= "\n"; + $len = strlen($s); + + // items that don't need spaces next to them + $chars = '^&|!+\-*\/%=:;,{}()<>% \t\n\r'; + + ob_start(); + while($i < $len){ + $ch = $s{$i}; + + // multiline comments + if($ch == '/' && $s{$i+1} == '*'){ + $endC = strpos($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 = $j + 2; + } + echo substr($s,$i,$j+1); + $i = $i + $j + 1; + continue; + } + } + + // double quote strings + if($ch == '"'){ + $j = 1; + while( $s{$i+$j} != '"' ){ + while( ($s{$i+$j} != '\\') && ($s{$i+$j} != '"') ){ + $j = $j + 1; + } + if($s{$i+$j} == '\\') $j = $j + 2; + } + echo substr($s,$i,$j+1); + $i = $i + $j + 1; + continue; + } + + // single quote strings + if($ch == "'"){ + $j = 1; + while( $s{$i+$j} != "'" ){ + while( ($s{$i+$j} != '\\') && ($s{$i+$j} != "'") ){ + $j = $j + 1; + } + if ($s{$i+$j} == '\\') $j = $j + 2; + } + echo substr($s,$i,$j+1); + $i = $i + $j + 1; + continue; + } + + // newlines + if($ch == "\n" || $ch == "\r"){ + $i = $i+1; + continue; + } + + // leading spaces + if( ( $ch == ' ' || + $ch == "\n" || + $ch == "\t" ) && + !preg_match('/['.$chars.']/',$s{$i+1}) ){ + $i = $i+1; + continue; + } + + // trailing spaces + if( ( $ch == ' ' || + $ch == "\n" || + $ch == "\t" ) && + !preg_match('/['.$chars.']/',$s{$i-1}) ){ + $i = $i+1; + continue; + } + + // other chars + echo $ch; + $i = $i + 1; + } + + + $out = ob_get_contents(); + ob_end_clean(); + return $out; +} + +//Setup VIM: ex: et ts=4 enc=utf-8 : +?> |