pages/sitemap/SitemapHandler.inc.php

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<?php

// $Id$


import('xml.XMLCustomWriter');
import('handler.Handler');

define('SITEMAP_XSD_URL', 'http://www.sitemaps.org/schemas/sitemap/0.9');

class SitemapHandler extends Handler {
   function index() {
      if (Request::getRequestedConferencePath() == 'index') {
         $doc = SitemapHandler::createSitemapIndex();
         header("Content-Type: application/xml");
         header("Cache-Control: private");
         header("Content-Disposition: inline; filename=\"sitemap_index.xml\"");
         XMLCustomWriter::printXML($doc);
      } else {
         if(Request::getRequestedSchedConfPath() == 'index') {
            // At conference level
            $doc = SitemapHandler::createConfSitemap();
            header("Content-Type: application/xml");
            header("Cache-Control: private");
            header("Content-Disposition: inline; filename=\"sitemap.xml\"");
            XMLCustomWriter::printXML($doc);
         } else {
            // At scheduled conference level
            $doc = SitemapHandler::createSchedConfSitemap();
            header("Content-Type: application/xml");
            header("Cache-Control: private");
            header("Content-Disposition: inline; filename=\"sitemap.xml\"");
            XMLCustomWriter::printXML($doc);
         }
      }
   }
   
   function createSitemapIndex() {
      $conferenceDao =& DAORegistry::getDAO('ConferenceDAO');
      $schedConfDao =& DAORegistry::getDAO('SchedConfDAO');
      
      $doc =& XMLCustomWriter::createDocument();
      $root =& XMLCustomWriter::createElement($doc, 'sitemapindex');
      XMLCustomWriter::setAttribute($root, 'xmlns', SITEMAP_XSD_URL);

      $conferences =& $conferenceDao->getConferences();
      while ($conference =& $conferences->next()) {
         $sitemapUrl = Request::url($conference->getPath(), 'index', 'sitemap');
         $sitemap =& XMLCustomWriter::createElement($doc, 'sitemap');
         XMLCustomWriter::createChildWithText($doc, $sitemap, 'loc', $sitemapUrl, false);
         XMLCustomWriter::appendChild($root, $sitemap);
      
         $schedConfs =& $schedConfDao->getSchedConfsByConferenceId($conference->getId());
         while ($schedConf =& $schedConfs->next()) {
            $sitemapUrl = Request::url($conference->getPath(), $schedConf->getPath(), 'sitemap');
            $sitemap =& XMLCustomWriter::createElement($doc, 'sitemap');
            XMLCustomWriter::createChildWithText($doc, $sitemap, 'loc', $sitemapUrl, false);
            XMLCustomWriter::appendChild($root, $sitemap);
            unset($schedConf);
         }
         unset($conference);
      }
      
      XMLCustomWriter::appendChild($doc, $root);
      return $doc;
   }
      
   function createConfSitemap() {      
      $conference =& Request::getConference();
      $conferenceId = $conference->getId();
      
      $doc =& XMLCustomWriter::createDocument();
      $root =& XMLCustomWriter::createElement($doc, 'urlset');
      XMLCustomWriter::setAttribute($root, 'xmlns', SITEMAP_XSD_URL);
      
      // Conf. Home 
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), 'index', 'index')));
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), 'index', 'schedConfs', 'archive')));
      
      XMLCustomWriter::appendChild($doc, $root);
      return $doc;
   }
   
   function createSchedConfSitemap() {    
      $publishedPaperDao =& DAORegistry::getDAO('PublishedPaperDAO');
      $galleyDao =& DAORegistry::getDAO('PaperGalleyDAO');
      
      $conference =& Request::getConference();
      $conferenceId = $conference->getId();
      $schedConf = Request::getSchedConf();

      $doc =& XMLCustomWriter::createDocument();
      $root =& XMLCustomWriter::createElement($doc, 'urlset');
      XMLCustomWriter::setAttribute($root, 'xmlns', SITEMAP_XSD_URL);

      // Sched. Conf. home
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath())));
      // About page
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'about')));
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'about', 'submissions')));
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'about', 'siteMap')));
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'about', 'aboutThisPublishingSystem')));
      // Search
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'search')));
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'search', 'authors')));
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'search', 'titles')));
      // Conference Information
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'schedConf', 'overview')));
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'schedConf', 'trackPolicies')));
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'schedConf', 'presentations')));
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'schedConf', 'accommodation')));
      XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'schedConf', 'organizingTeam')));
      // Individual Papers
      $publishedPapers =& $publishedPaperDao->getPublishedPapers($schedConf->getId());
      while ($paper =& $publishedPapers->next()) {
         // Abstract
         XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'paper', 'view', $paper->getId())));
         // Galley files
         $galleys = $galleyDao->getGalleysByPaper($paper->getId());
         foreach ($galleys as $galley) {
            XMLCustomWriter::appendChild($root, SitemapHandler::createUrlTree($doc, Request::url($conference->getPath(), $schedConf->getPath(), 'paper', 'view', array($paper->getId(), $galley->getId()))));
         }
      }
         
      XMLCustomWriter::appendChild($doc, $root);
      return $doc;
   }
   
   function createUrlTree(&$doc, $loc, $lastmod = null, $changefreq = null, $priority = null) {    
      $url =& XMLCustomWriter::createElement($doc, 'url');
      
      XMLCustomWriter::createChildWithText($doc, $url, htmlentities('loc'), $loc, false);
      XMLCustomWriter::createChildWithText($doc, $url, 'lastmod', $lastmod, false);
      XMLCustomWriter::createChildWithText($doc, $url, 'changefreq', $changefreq, false);
      XMLCustomWriter::createChildWithText($doc, $url, 'priority', $priority, false);
      
      return $url;
   }
   
}

?>

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