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<?php
/**
* DokuWiki indexer
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Andreas Gohr <andi@splitbrain.org>
*/
/**
* Just send a 1x1 pixel blank gif to the browser and exit
*/
function sendGIF(){
$img = base64_decode('R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAEALAAAAAABAAEAAAIBTAA7');
header('Content-Type: image/gif');
header('Content-Length: '.strlen($img));
header('Connection: Close');
print $img;
// Browser should drop connection after this
// Thinks it's got the whole image
}
// Make sure image is sent to the browser immediately
ob_implicit_flush(TRUE);
// keep running after browser closes connection
@ignore_user_abort(true);
sendGIF();
// Switch off implicit flush again - we don't want to send any more output
ob_implicit_flush(FALSE);
// Catch any possible output (e.g. errors)
// - probably not needed but better safe...
ob_start();
// Called to exit - we don't want any output going anywhere
function indexer_stop() {
ob_end_clean();
exit();
}
// Now start work
if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
require_once(DOKU_INC.'inc/init.php');
//close session
session_write_close();
require_once(DOKU_INC.'inc/indexer.php');
$ID = cleanID($_REQUEST['id']);
if(!$ID) indexer_stop();
// check if indexing needed
$last = @filemtime(metaFN($ID,'.indexed'));
if($last > @filemtime(wikiFN($ID))) indexer_stop();
// try to aquire a lock
$lock = $conf['lockdir'].'/_indexer.lock';
while(!@mkdir($lock,0777)){
if(time()-@filemtime($lock) > 60*5){
// looks like a stale lock - remove it
@rmdir($lock);
}else{
indexer_stop();
}
}
// do the work
idx_addPage($ID);
// we're finished
io_saveFile(metaFN($ID,'.indexed'),'');
@rmdir($lock);
indexer_stop();
//Setup VIM: ex: et ts=4 enc=utf-8 :
// No trailing PHP closing tag - no output please!
// See Note at http://www.php.net/manual/en/language.basic-syntax.instruction-separation.php
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