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   1  <?php
   2  
   3  namespace dokuwiki\Action;
   4  
   5  use dokuwiki\Action\Exception\FatalException;
   6  use dokuwiki\Sitemap\Mapper;
   7  use dokuwiki\Utf8\PhpString;
   8  
   9  /**
  10   * Class Sitemap
  11   *
  12   * Generate an XML sitemap for search engines. Do not confuse with Index
  13   *
  14   * @package dokuwiki\Action
  15   */
  16  class Sitemap extends AbstractAction
  17  {
  18      /** @inheritdoc */
  19      public function minimumPermission()
  20      {
  21          return AUTH_NONE;
  22      }
  23  
  24      /**
  25       * Handle sitemap delivery
  26       *
  27       * @author Michael Hamann <michael@content-space.de>
  28       * @throws FatalException
  29       * @inheritdoc
  30       */
  31      public function preProcess()
  32      {
  33          global $conf;
  34  
  35          if ($conf['sitemap'] < 1 || !is_numeric($conf['sitemap'])) {
  36              throw new FatalException('Sitemap generation is disabled', 404);
  37          }
  38  
  39          $sitemap = Mapper::getFilePath();
  40          if (Mapper::sitemapIsCompressed()) {
  41              $mime = 'application/x-gzip';
  42          } else {
  43              $mime = 'application/xml; charset=utf-8';
  44          }
  45  
  46          // Check if sitemap file exists, otherwise create it
  47          if (!is_readable($sitemap)) {
  48              Mapper::generate();
  49          }
  50  
  51          if (is_readable($sitemap)) {
  52              // Send headers
  53              header('Content-Type: ' . $mime);
  54              header('Content-Disposition: attachment; filename=' . PhpString::basename($sitemap));
  55  
  56              http_conditionalRequest(filemtime($sitemap));
  57  
  58              // Send file
  59              //use x-sendfile header to pass the delivery to compatible webservers
  60              http_sendfile($sitemap);
  61  
  62              readfile($sitemap);
  63              exit;
  64          }
  65  
  66          throw new FatalException('Could not read the sitemap file - bad permissions?');
  67      }
  68  }