Mercurial > SimpleWebPresenter

comparison CacheTimeCheck.inc @ 99:d98e315308cd

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Improved caching of flag and sitemap.
author Tom Fredrik "BFG" Klaussen <bfg@blenning.no>
date Sun, 14 Sep 2014 21:11:27 +0200
parents dd4ddedca4c5
children adf7b11921f4
comparison
equal deleted inserted replaced
98:f2d52fed708c 99:d98e315308cd
3 3
4 include_once 'common-functions.inc'; 4 include_once 'common-functions.inc';
5 include_once 'FileCacheSet.inc'; 5 include_once 'FileCacheSet.inc';
6 $cache = ScriptIncludeCache::instance(__FILE__); 6 $cache = ScriptIncludeCache::instance(__FILE__);
7 $cache->cache_time("${baseDir}/FileCacheSet.inc"); 7 $cache->cache_time("${baseDir}/FileCacheSet.inc");
8
9 function toGMTime($time) {
10 return gmdate('D, d M Y H:i:s', $time) . ' GMT';
11 }
12
13 /**
14 * Checks if a HTTP_IF_MODIFIED_SINCE header is set, if this file is
15 * newer, set a Last-Modified header, otherwise abort with an 304
16 * status code
17 */
18 function CheckHttpModified($cache)
19 {
20 if (DEBUG_LEVEL >= VERBOSITY_DEBUG)
21 var_dump($_SERVER);
22
23 $gmdate_mod = toGMTime($cache->getNewest());
24
25 if ($_SERVER['REDIRECT_URL'] == '/sitemap.xml') {
26 //print_r($gmdate_mod);
27 }
28
29 if(array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER)) {
30 $HTTP_IF_MODIFIED_SINCE = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
31 $if_modified_since = preg_replace('/;.*$/', '', $HTTP_IF_MODIFIED_SINCE);
32
33 if (strtotime($if_modified_since) >= $cache->getNewest()) {
34 header("HTTP/1.0 304 Not Modified");
35 foreach($cache->cacheControl() as $header => $value) {
36 header ("${header}: ${value}");
37 }
38 return false;
39 }
40 }
41
42 foreach($cache->cacheControl() as $header => $value) {
43 header ("${header}: ${value}");
44 }
45 header("Last-Modified: $gmdate_mod");
46 return true;
47 }
48
49
8 50
9 /** 51 /**
10 * CacheTimeCheck provides a set of functions to enable generating a 52 * CacheTimeCheck provides a set of functions to enable generating a
11 * correct time for the latest update for a given file. 53 * correct time for the latest update for a given file.
12 * 54 *
18 { 60 {
19 parent::__construct(); 61 parent::__construct();
20 if ($filename) 62 if ($filename)
21 $this->cache_time($filename); 63 $this->cache_time($filename);
22 $this->cache_time(__FILE__); 64 $this->cache_time(__FILE__);
65 $this->max_age=0;
23 } 66 }
24 67
25 public function addParent($cache) 68 public function addParent($cache)
26 { 69 {
27 parent::addParent($cache); 70 parent::addParent($cache);
28 }
29
30 /**
31 * Checks if a HTTP_IF_MODIFIED_SINCE header is set, if this file is
32 * newer, set a Last-Modified header, otherwise abort with an 304
33 * status code
34 */
35 function CheckHttpModified()
36 {
37 if (DEBUG_LEVEL >= VERBOSITY_DEBUG)
38 var_dump($_SERVER);
39
40 $gmdate_mod = gmdate('D, d M Y H:i:s', $this->getNewest()) . ' GMT';
41
42 if(array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER)) {
43 $HTTP_IF_MODIFIED_SINCE = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
44 $if_modified_since = preg_replace('/;.*$/', '', $HTTP_IF_MODIFIED_SINCE);
45
46 if (strtotime($if_modified_since) >= $this->getNewest()) {
47 header("HTTP/1.0 304 Not Modified");
48 exit;
49 }
50 }
51
52 header("Last-Modified: $gmdate_mod");
53 } 71 }
54 72
55 /** 73 /**
56 * Convenience function to load a file, and add it to the cacheset 74 * Convenience function to load a file, and add it to the cacheset
57 * 75 *
61 function loadFile($path) 79 function loadFile($path)
62 { 80 {
63 $this->cache_time($path); 81 $this->cache_time($path);
64 return loadFile($path); 82 return loadFile($path);
65 } 83 }
84
66 } 85 }
67 ?> 86 ?>