xref: /dokuwiki/lib/exe/indexer.php (revision f8925855f0c0939a3e9c02f7bf41d465443d6cc6) 
1<?php
2/**
3 * DokuWiki indexer
4 *
5 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
6 * @author     Andreas Gohr <andi@splitbrain.org>
7 */
8
9if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
10require_once(DOKU_INC.'inc/init.php');
11require_once(DOKU_INC.'inc/indexer.php');
12//close session
13session_write_close();
14
15
16$ID = cleanID($_REQUEST['id']);
17if(!$ID) sendGIF();
18
19// check if indexing needed
20$last = @filemtime(metaFN($ID,'.indexed'));
21if($last > @filemtime(wikiFN($ID))) sendGIF();
22
23// keep running
24@ignore_user_abort(true);
25
26// try to aquire a lock
27$lock = $conf['lockdir'].'/_indexer.lock';
28while(!@mkdir($lock)){
29    if(time()-@filemtime($lock) > 60*5){
30        // looks like a stale lock - remove it
31        @rmdir($lock);
32    }else{
33        sendGIF();
34    }
35}
36
37// do the work
38idx_addPage($ID);
39
40// we're finished
41io_saveFile(metaFN($ID,'.indexed'),'');
42@rmdir($lock);
43sendGIF();
44
45/**
46 * Just send a 1x1 pixel blank gif to the browser and exit
47 */
48function sendGIF(){
49    header('Content-Type: image/gif');
50    print base64_decode('R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAEALAAAAAABAAEAAAIBTAA7');
51    exit;
52}
53
54//Setup VIM: ex: et ts=4 enc=utf-8 :
55?>
56