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   1  <?php
   2  
   3  namespace dokuwiki\Cache;
   4  
   5  /**
   6   * Parser caching
   7   */
   8  class CacheParser extends Cache
   9  {
  10      public $file = '';       // source file for cache
  11      public $mode = '';       // input mode (represents the processing the input file will undergo)
  12      public $page = '';
  13  
  14      /**
  15       *
  16       * @param string $id page id
  17       * @param string $file source file for cache
  18       * @param string $mode input mode
  19       */
  20      public function __construct($id, $file, $mode)
  21      {
  22          global $INPUT;
  23  
  24          if ($id) {
  25              $this->page = $id;
  26          }
  27          $this->file = $file;
  28          $this->mode = $mode;
  29  
  30          $this->setEvent('PARSER_CACHE_USE');
  31          parent::__construct($file . $INPUT->server->str('HTTP_HOST') . $INPUT->server->str('SERVER_PORT'), '.' . $mode);
  32      }
  33  
  34      /**
  35       * method contains cache use decision logic
  36       *
  37       * @return bool see useCache()
  38       */
  39      public function makeDefaultCacheDecision()
  40      {
  41          if (!file_exists($this->file)) {
  42              // source doesn't exist
  43              return false;
  44          }
  45          return parent::makeDefaultCacheDecision();
  46      }
  47  
  48      protected function addDependencies()
  49      {
  50          // parser cache file dependencies ...
  51          $files = [
  52              $this->file, // source
  53              DOKU_INC . 'inc/Parsing/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              $files :
  60              array_merge($files, $this->depends['files']);
  61          parent::addDependencies();
  62      }
  63  }