source: plugins/sitemaps/class.dc.sitemaps.php @ 975

<?php
# -- BEGIN LICENSE BLOCK ----------------------------------
#
# This file is part of Sitemaps, a plugin for DotClear2.
# Copyright (c) 2006-2009 Pep and contributors.
# Licensed under the GPL version 2.0 license.
# See LICENSE file or
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
#
# -- END LICENSE BLOCK ------------------------------------
class dcSitemaps
{
     protected $core;
     protected $blog;
     protected $urls;
     protected $freqs;
     protected $post_types;

     public function __construct($core)
     {
          $this->core = $core;
          $this->blog = $core->blog;

          $this->urls  = array();
          $this->freqs = array('','always','hourly','daily','weekly','monthly','never');
          $post_types = array();
          
          // Default post types
          $this->addPostType(
               'post',
               $this->blog->url.$this->core->url->getBase('post').'/',
               $this->blog->settings->sitemaps_posts_fq,
               $this->blog->settings->sitemaps_posts_pr
          );
          $this->addPostType(
               'page',
               $this->blog->url.$this->core->url->getBase('pages').'/',
               $this->blog->settings->sitemaps_pages_fq,
               $this->blog->settings->sitemaps_pages_pr
          );
     }


     public function getURLs()
     {
          if ($this->blog->settings->sitemaps_active && empty($this->urls)) {
               $this->collectURLs();
          }
          return $this->urls;
     }

     public function addPostType($type,$base_url,$freq = 0, $priority = 0.3)
     {
          if (preg_match('!^([a-z_-]+)$!',$type)) {
               $this->post_types[$type]['base_url']    = $base_url;
               $this->post_types[$type]['frequency']   = $this->getFrequency($freq);
               $this->post_types[$type]['priority']    = $this->getPriority($priority);
               return true;
          }
          return false;
     }
     
     public function addEntry($loc,$priority,$frequency,$lastmod = '')
     {
          $this->urls[] = array(
               'loc'       => $loc,
               'priority'  => $priority,
               'frequency' => ($frequency == '')?null:$frequency,
               'lastmod'   => ($lastmod == '')?null:$lastmod
               );
     }

     public function getPriority($value)
     {
          return(sprintf('%.1f',min(abs((float)$value),1)));
     }

     public function getFrequency($value)
     {
          return $this->freqs[min(abs(intval($value)),6)];
     }

     public function collectEntriesURLs($type = 'post')
     {
          if (!array_key_exists($type,$this->post_types)) {
               return;
          }

          $freq     = $this->post_types[$type]['frequency'];
          $prio     = $this->post_types[$type]['priority'];
          $base_url = $this->post_types[$type]['base_url'];

          // Let's have fun !
          $query =
               "SELECT p.post_id, p.post_url, p.post_tz, ".
               "p.post_upddt, MAX(c.comment_upddt) AS comments_dt ".  
               "FROM ".$this->blog->prefix."post AS p ".
               "LEFT OUTER JOIN ".$this->blog->prefix."comment AS c ON c.post_id = p.post_id ".
               "WHERE p.blog_id = '".$this->blog->con->escape($this->blog->id)."' ". 
               "AND p.post_type = '".$type."' AND p.post_status = 1 AND p.post_password IS NULL ".
               'GROUP BY p.post_id, p.post_url, p.post_tz, p.post_upddt, p.post_dt '.
               'ORDER BY p.post_dt ASC';
               
          $rs = $this->blog->con->select($query);
          while ($rs->fetch()) {
               if ($rs->comments_dt !== null) {
                    $last_ts = max(strtotime($rs->post_upddt),strtotime($rs->comments_dt));
               } else {
                    $last_ts = strtotime($rs->post_upddt);
               }
               $last_dt = dt::iso8601($last_ts,$rs->post_tz);
               $url = $base_url.html::sanitizeURL($rs->post_url);
               $this->addEntry($url,$prio,$freq,$last_dt);
          }
     }
     
     protected function collectURLs()
     {
          // Homepage URL
          if ($this->blog->settings->sitemaps_home_url)
          {
               $freq = $this->getFrequency($this->blog->settings->sitemaps_home_fq);
               $prio = $this->getPriority($this->blog->settings->sitemaps_home_pr);

               $this->addEntry($this->blog->url,$prio,$freq);
          }

          // Main syndication feeds URLs
          if ($this->core->blog->settings->sitemaps_feeds_url)
          {
               $freq = $this->getFrequency($this->blog->settings->sitemaps_feeds_fq);
               $prio = $this->getPriority($this->blog->settings->sitemaps_feeds_pr);

               $this->addEntry(
                         $this->blog->url.$this->core->url->getBase('feed').'/rss2',
                         $prio,$freq);
               $this->addEntry(
                         $this->blog->url.$this->core->url->getBase('feed').'/atom',
                         $prio,$freq);
          }

          // Posts entries URLs
          if ($this->core->blog->settings->sitemaps_posts_url) {
               $this->collectEntriesURLs('post');
          }

          // Pages entries URLs
          if ($this->core->plugins->moduleExists('pages') && $this->core->blog->settings->sitemaps_pages_url) {
               $this->collectEntriesURLs('page');
          }

          // Categories URLs
          if ($this->core->blog->settings->sitemaps_cats_url)
          {
               $freq = $this->getFrequency($this->blog->settings->sitemaps_cats_fq);
               $prio = $this->getPriority($this->blog->settings->sitemaps_cats_pr);

               $cats = $this->blog->getCategories();
               while ($cats->fetch()) {
                    $this->addEntry(
                              $this->blog->url.$this->core->url->getBase("category")."/".$cats->cat_url,
                              $prio,$freq);
               }
          }

          if ($this->core->plugins->moduleExists('metadata') && $this->core->blog->settings->sitemaps_tags_url)
          {
               $freq = $this->getFrequency($this->blog->settings->sitemaps_tags_fq);
               $prio = $this->getPriority($this->blog->settings->sitemaps_tags_pr);
               
               $meta = new dcMeta($this->core);
               $tags = $meta->getMeta('tag');
               while ($tags->fetch()) {
                    $this->addEntry(
                         $this->blog->url.$this->core->url->getBase("tag")."/".rawurlencode($tags->meta_id),
                         $prio,$freq);
               }
          }
          
          // External parts ?
          # --BEHAVIOR-- packagerAfterCreate
          $this->core->callBehavior('sitemapsURLsCollect', $this);
     }
}
?>