From 9aab17be924ec04b7b46a971d3c9f414f6eb9bf0 Mon Sep 17 00:00:00 2001
From: Urban Müller
Date: Wed, 28 Oct 2015 18:51:39 +0100
Subject: extract far future header handling for ffe.php

---
 itjs.php | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

(limited to 'itjs.php')

diff --git a/itjs.php b/itjs.php
index 80ae502..a1e5a0f 100644
--- a/itjs.php
+++ b/itjs.php
@@ -24,16 +24,11 @@ require "itools/itools.lib";
 if (EDC('slow' . it::match('\.(css|js)\b', U($_GET))))
 	 sleep(5);
 
-$crc = $_REQUEST['c'] ?: $_REQUEST['s'];
-if ($crc != "-" && !$_SERVER['HTTP_CACHE_CONTROL'] && $_SERVER['HTTP_IF_NONE_MATCH'] && !it::is_devel() && !$_REQUEST['retry'])
-{
-	header("HTTP/1.0 304 Not Modified"); # client should always keep the component that fits the page it has
-	exit;
-}
-
 if (it::match('/server/', $_SERVER['DOCUMENT_ROOT']))
 	exit; # useless here. cannot write tempfiles
 
+itjs::far_future_headers(); # may exit
+
 $files = itjs::filenames($_GET['files'] ?: it::match('/itjs/([-a-z0-9_,.]*)', $_SERVER['PHP_SELF']));
 $data = itjs::filecontents($files);
 $file = end($files);
@@ -82,16 +77,6 @@ else if (!it::match('\.html$', $file))
 	header("Content-Type: application/x-javascript; charset=$charset");
 }
 
-if ($crc != "-")
-	@header("Etag: alwaysvalid"); # we have checksums in the url. client should always keep the version he downloaded along with the html
-
-if (it::is_live() && !$_REQUEST['retry'])
-{
-	$keeptime = $crc == "-" ? 0 : ($crc ? 30*86400 : 900); # long expire if checksum present
-	header("Cache-Control: max-age=$keeptime, private"); # proxies should not cache since contents of same url can differ between browsers
-	header("Expires: " . gmdate("D, d M Y H:i:s", time() + $keeptime). " GMT");
-}
-
 $data = itjs::strip($data);
 
 if ($_REQUEST['boot'])
-- 
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