abstract class hackedFileHasher in Hacked! 7.2

Base class for the different ways that files can be hashed.

Hierarchy

• class \hackedFileHasher

File

includes/hackedFileHasher.inc, line 6

abstract class hackedFileHasher {

  /**
   * Returns a hash of the given filename.
   *
   * Ignores file line endings
   */
  function hash($filename) {
    if (file_exists($filename)) {
      if ($hash = $this
        ->cache_get($filename)) {
        return $hash;
      }
      else {
        $hash = $this
          ->perform_hash($filename);
        $this
          ->cache_set($filename, $hash);
        return $hash;
      }
    }
  }
  function cache_set($filename, $hash) {
    cache_set($this
      ->cache_key($filename), $hash, HACKED_CACHE_TABLE, strtotime('+7 days'));
  }
  function cache_get($filename) {
    $cache = cache_get($this
      ->cache_key($filename), HACKED_CACHE_TABLE);
    if (!empty($cache->data)) {
      return $cache->data;
    }
  }
  function cache_key($filename) {
    $key = array(
      'filename' => $filename,
      'mtime' => filemtime($filename),
      'class_name' => get_class($this),
    );
    return sha1(serialize($key));
  }

  /**
   * Compute and return the hash of the given file.
   *
   * @param $filename
   *   A fully-qualified filename to hash.
   *
   * @return string
   *   The computed hash of the given file.
   */
  abstract function perform_hash($filename);

  /**
   * Compute and return the lines of the given file.
   *
   * @param $filename
   *   A fully-qualified filename to return.
   *
   * @return array|bool
   *   The lines of the given filename or FALSE on failure.
   */
  abstract function fetch_lines($filename);

}

Members

Name	Modifiers	Type	Description	Overrides
hackedFileHasher::cache_get		function
hackedFileHasher::cache_key		function
hackedFileHasher::cache_set		function
hackedFileHasher::fetch_lines	abstract	function	Compute and return the lines of the given file.	2
hackedFileHasher::hash		function	Returns a hash of the given filename.
hackedFileHasher::perform_hash	abstract	function	Compute and return the hash of the given file.	2