From c73c757e0e421668521e2e4d146aa0f9acac4057 Mon Sep 17 00:00:00 2001
From: hfuecks <hfuecks@gmail.com>
Date: Thu, 6 Oct 2005 15:06:51 +0200
Subject: indexer_patch_flush_image

darcs-hash:20051006130651-e96b6-6496b235c56a40cdea06df6198a5d39e5bfa9d13.gz
---
 lib/exe/indexer.php | 59 ++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 43 insertions(+), 16 deletions(-)

(limited to 'lib/exe/indexer.php')

diff --git a/lib/exe/indexer.php b/lib/exe/indexer.php
index 451ba97ca..74f0b3924 100644
--- a/lib/exe/indexer.php
+++ b/lib/exe/indexer.php
@@ -6,6 +6,42 @@
  * @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');
 require_once(DOKU_INC.'inc/indexer.php');
@@ -14,14 +50,12 @@ session_write_close();
 
 
 $ID = cleanID($_REQUEST['id']);
-if(!$ID) sendGIF();
+if(!$ID) indexer_stop();
 
 // check if indexing needed
 $last = @filemtime(metaFN($ID,'.indexed'));
-if($last > @filemtime(wikiFN($ID))) sendGIF();
+if($last > @filemtime(wikiFN($ID))) indexer_stop();
 
-// keep running
-@ignore_user_abort(true);
 
 // try to aquire a lock
 $lock = $conf['lockdir'].'/_indexer.lock';
@@ -30,7 +64,7 @@ while(!@mkdir($lock,0777)){
         // looks like a stale lock - remove it
         @rmdir($lock);
     }else{
-        sendGIF();
+        indexer_stop();
     }
 }
 
@@ -40,16 +74,9 @@ idx_addPage($ID);
 // we're finished
 io_saveFile(metaFN($ID,'.indexed'),'');
 @rmdir($lock);
-sendGIF();
-
-/**
- * Just send a 1x1 pixel blank gif to the browser and exit
- */
-function sendGIF(){
-    header('Content-Type: image/gif');
-    print base64_decode('R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAEALAAAAAABAAEAAAIBTAA7');
-    exit;
-}
+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
\ No newline at end of file
-- 
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