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annotate CacheTimeCheck.inc @ 112:4854db07f14f

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Fix bug when creating sitemaps introduced when adding common element.
author Tom Fredrik "BFG" Klaussen <bfg@blenning.no>
date Tue, 15 Mar 2016 15:11:37 +0100
parents adf7b11921f4
children df158368051e
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d2da64705bce Refactored everything in the CMS into this repos.
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1 <?php
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2 $baseDir = dirname(__FILE__);
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3
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4 include_once 'common-functions.inc';
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5 include_once 'FileCacheSet.inc';
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6 $cache = ScriptIncludeCache::instance(__FILE__);
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7 $cache->cache_time("${baseDir}/FileCacheSet.inc");
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8
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9 function toGMTime($time) {
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10 return gmdate('D, d M Y H:i:s', $time) . ' GMT';
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11 }
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12
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13 /**
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14 * Checks if a HTTP_IF_MODIFIED_SINCE header is set, if this file is
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15 * newer, set a Last-Modified header, otherwise abort with an 304
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16 * status code
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17 */
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18 function CheckHttpModified($cache)
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19 {
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20 if (DEBUG_LEVEL >= VERBOSITY_DEBUG)
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21 var_dump($_SERVER);
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22
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23 $gmdate_mod = toGMTime($cache->getNewest());
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24
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25 if ($_SERVER['REDIRECT_URL'] == '/sitemap.xml') {
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26 //print_r($gmdate_mod);
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27 }
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28
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29 foreach($cache->cacheControl() as $header => $value) {
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30 header ("${header}: ${value}");
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31 }
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32 if(array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER)) {
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33 $HTTP_IF_MODIFIED_SINCE = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
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34 $if_modified_since = preg_replace('/;.*$/', '', $HTTP_IF_MODIFIED_SINCE);
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35
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36 if (strtotime($if_modified_since) >= $cache->getNewest()) {
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37 header("HTTP/1.0 304 Not Modified");
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38 return false;
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39 }
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40 }
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41
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42 foreach($cache->cacheControl() as $header => $value) {
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43 header ("${header}: ${value}");
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44 }
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45 header("Last-Modified: $gmdate_mod");
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46 return true;
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47 }
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51 /**
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52 * CacheTimeCheck provides a set of functions to enable generating a
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53 * correct time for the latest update for a given file.
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54 *
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55 * @author Tom Fredrik Blenning Klaussen
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56 */
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57 class CacheTimeCheck extends FileCacheSet
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58 {
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59 function __construct($filename = False)
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60 {
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61 parent::__construct();
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62 if ($filename)
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63 $this->cache_time($filename);
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64 $this->cache_time(__FILE__);
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65 $this->max_age=0;
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66 }
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67
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68 public function addParent($cache)
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69 {
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70 parent::addParent($cache);
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71 }
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72
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73 /**
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74 * Convenience function to load a file, and add it to the cacheset
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75 *
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76 * @param $path path of the file
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77 * @return the contents of the file
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78 */
38
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79 function loadFile($path)
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80 {
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81 $this->cache_time($path);
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82 return loadFile($path);
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83 }
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84
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85 }
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86 ?>