function filehash_node_view in File Hash 7

Implements hook_node_view().

File

./filehash.module, line 127

Generate hashes for each uploaded file.

Code

function filehash_node_view($node, $view_mode) {
  static $fields;

  // Add <media:hash> elements for at most one file per RSS item.
  if ($view_mode != 'rss') {
    return;
  }

  // The <media:hash> element only supports MD5 and SHA-1.
  $algos = filehash_algos();
  if (!isset($algos['md5']) && !isset($algos['sha1'])) {
    return;
  }
  if (!isset($fields[$node->type])) {
    $fields[$node->type] = field_read_fields(array(
      'bundle' => $node->type,
      'entity_type' => 'node',
      // The following field types are currently supported.
      'type' => array(
        'file',
        'image',
        'media',
      ),
    ));
  }
  foreach ($fields[$node->type] as $field) {
    if ($items = field_get_items('node', $node, $field['field_name'])) {
      foreach ($items as $file) {

        // Media fields have a file object rather than a file array.
        if ($field['type'] == 'media') {
          filehash_rss_elements((array) $file['file'], $node);
          return;
        }
        elseif ($field['type'] == 'image' || $file['display']) {
          filehash_rss_elements($file, $node);
          return;
        }
      }
    }
  }
}