vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_cachemodify.php

   1 <?php
   2
   3 /**
   4  * Inline Runtime Methods render, setSourceByUid, setupSubTemplate
   5  *
   6  * @package    Smarty
   7  * @subpackage PluginsInternal
   8  * @author     Uwe Tews
   9  *
  10  **/
  11 class Smarty_Internal_Runtime_CacheModify
  12 {
  13     /**
  14      * check client side cache
  15      *
  16      * @param \Smarty_Template_Cached   $cached
  17      * @param \Smarty_Internal_Template $_template
  18      * @param  string                   $content
  19      */
  20     public function cacheModifiedCheck(Smarty_Template_Cached $cached, Smarty_Internal_Template $_template, $content)
  21     {
  22         $_isCached = $_template->isCached() && !$_template->compiled->has_nocache_code;
  23         $_last_modified_date =
  24             @substr($_SERVER[ 'HTTP_IF_MODIFIED_SINCE' ], 0, strpos($_SERVER[ 'HTTP_IF_MODIFIED_SINCE' ], 'GMT') + 3);
  25         if ($_isCached && $cached->timestamp <= strtotime($_last_modified_date)) {
  26             switch (PHP_SAPI) {
  27                 case 'cgi': // php-cgi < 5.3
  28                 case 'cgi-fcgi': // php-cgi >= 5.3
  29                 case 'fpm-fcgi': // php-fpm >= 5.3.3
  30                     header('Status: 304 Not Modified');
  31                     break;
  32
  33                 case 'cli':
  34                     if ( /* ^phpunit */
  35                     !empty($_SERVER[ 'SMARTY_PHPUNIT_DISABLE_HEADERS' ]) /* phpunit$ */
  36                     ) {
  37                         $_SERVER[ 'SMARTY_PHPUNIT_HEADERS' ][] = '304 Not Modified';
  38                     }
  39                     break;
  40
  41                 default:
  42                     if ( /* ^phpunit */
  43                     !empty($_SERVER[ 'SMARTY_PHPUNIT_DISABLE_HEADERS' ]) /* phpunit$ */
  44                     ) {
  45                         $_SERVER[ 'SMARTY_PHPUNIT_HEADERS' ][] = '304 Not Modified';
  46                     } else {
  47                         header($_SERVER[ 'SERVER_PROTOCOL' ] . ' 304 Not Modified');
  48                     }
  49                     break;
  50             }
  51         } else {
  52             switch (PHP_SAPI) {
  53                 case 'cli':
  54                     if ( /* ^phpunit */
  55                     !empty($_SERVER[ 'SMARTY_PHPUNIT_DISABLE_HEADERS' ]) /* phpunit$ */
  56                     ) {
  57                         $_SERVER[ 'SMARTY_PHPUNIT_HEADERS' ][] =
  58                             'Last-Modified: ' . gmdate('D, d M Y H:i:s', $cached->timestamp) . ' GMT';
  59                     }
  60                     break;
  61                 default:
  62                     header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $cached->timestamp) . ' GMT');
  63                     break;
  64             }
  65             echo $content;
  66         }
  67     }
  68 }