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   1  <?php
   2  
   3  namespace dokuwiki\Cache;
   4  
   5  /**
   6   * Parser caching
   7   */
   8  class CacheParser extends Cache
   9  {
  10  
  11      public $file = '';       // source file for cache
  12      public $mode = '';       // input mode (represents the processing the input file will undergo)
  13      public $page = '';
  14  
  15      /**
  16       *
  17       * @param string $id page id
  18       * @param string $file source file for cache
  19       * @param string $mode input mode
  20       */
  21      public function __construct($id, $file, $mode)
  22      {
  23          if ($id) {
  24              $this->page = $id;
  25          }
  26          $this->file = $file;
  27          $this->mode = $mode;
  28  
  29          $this->setEvent('PARSER_CACHE_USE');
  30          parent::__construct($file . $_SERVER['HTTP_HOST'] . $_SERVER['SERVER_PORT'], '.' . $mode);
  31      }
  32  
  33      /**
  34       * method contains cache use decision logic
  35       *
  36       * @return bool               see useCache()
  37       */
  38      public function makeDefaultCacheDecision()
  39      {
  40  
  41          if (!file_exists($this->file)) {
  42              return false;
  43          }                   // source exists?
  44          return parent::makeDefaultCacheDecision();
  45      }
  46  
  47      protected function addDependencies()
  48      {
  49  
  50          // parser cache file dependencies ...
  51          $files = array(
  52              $this->file,                              // ... source
  53              DOKU_INC . 'inc/parser/Parser.php',                // ... parser
  54              DOKU_INC . 'inc/parser/handler.php',               // ... handler
  55          );
  56          $files = array_merge($files, getConfigFiles('main'));    // ... wiki settings
  57  
  58          $this->depends['files'] = !empty($this->depends['files']) ?
  59              array_merge($files, $this->depends['files']) :
  60              $files;
  61          parent::addDependencies();
  62      }
  63  
  64  }