source: plugins/blogroll/_public.php @ 2778:fe7e025273c4

<?php
# -- BEGIN LICENSE BLOCK ---------------------------------------
#
# This file is part of Dotclear 2.
#
# Copyright (c) 2003-2013 Olivier Meunier & Association Dotclear
# 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 -----------------------------------------
if (!defined('DC_RC_PATH')) { return; }

require dirname(__FILE__).'/_widgets.php';

# Blogroll template functions
$core->tpl->addValue('Blogroll',array('tplBlogroll','blogroll'));
$core->tpl->addValue('BlogrollXbelLink',array('tplBlogroll','blogrollXbelLink'));

$core->url->register('xbel','xbel','^xbel(?:/?)$',array('urlBlogroll','xbel'));

class tplBlogroll
{
     public static function blogroll($attr)
     {
          $category='<h3>%s</h3>';
          $block='<ul>%s</ul>';
          $item='<li%2$s>%1$s</li>';

          if (isset($attr['category'])) {
               $category = addslashes($attr['category']);
          }

          if (isset($attr['block'])) {
               $block = addslashes($attr['block']);
          }

          if (isset($attr['item'])) {
               $item = addslashes($attr['item']);
          }

          $only_cat = 'null';
          if (!empty($attr['only_category'])) {
               $only_cat = "'".addslashes($attr['only_category'])."'";
          }

          return
          '<?php '.
          "echo tplBlogroll::getList('".$category."','".$block."','".$item."',".$only_cat."); ".
          '?>';
     }

     public static function blogrollXbelLink($attr)
     {
          $f = $GLOBALS['core']->tpl->getFilters($attr);
          return '<?php echo '.sprintf($f,'$core->blog->url.$core->url->getURLFor("xbel")').'; ?>';
     }

     public static function getList($cat_title='<h3>%s</h3>',$block='<ul>%s</ul>',$item='<li>%s</li>',$category=null)
     {
          $blogroll = new dcBlogroll($GLOBALS['core']->blog);

          try {
               $links = $blogroll->getLinks();
          } catch (Exception $e) {
               return false;
          }

          $res = '';

          $hierarchy = $blogroll->getLinksHierarchy($links);

          if ($category) {
               if (!isset($hierarchy[$category])) {
                    return '';
               }
               $hierarchy = array($hierarchy[$category]);
          }

          foreach ($hierarchy as $k => $v)
          {
               if ($k != '') {
                    $res .= sprintf($cat_title,html::escapeHTML($k))."\n";
               }

               $res .= self::getLinksList($v,$block,$item);
          }

          return $res;
     }

     private static function getLinksList($links,$block='<ul>%s</ul>',$item='<li%2$s>%1$s</li>')
     {
          $list = '';

          # Find current link item if any
          $current = -1;
          $current_size = 0;
          $self_uri = http::getSelfURI();

          foreach ($links as $k => $v)
          {
               if (!preg_match('$^([a-z][a-z0-9.+-]+://)$',$v['link_href'])) {
                    $url = http::concatURL($self_uri,$v['link_href']);
                    if (strlen($url) > $current_size && preg_match('/^'.preg_quote($url,'/').'/',$self_uri)) {
                         $current = $k;
                         $current_size = strlen($url);
                    }
               }
          }

          foreach ($links as $k => $v)
          {
               $title = $v['link_title'];
               $href  = $v['link_href'];
               $desc = $v['link_desc'];
               $lang  = $v['link_lang'];
               $xfn = $v['link_xfn'];

               $link =
               '<a href="'.html::escapeHTML($href).'"'.
               ((!$lang) ? '' : ' hreflang="'.html::escapeHTML($lang).'"').
               ((!$desc) ? '' : ' title="'.html::escapeHTML($desc).'"').
               ((!$xfn) ? '' : ' rel="'.html::escapeHTML($xfn).'"').
               '>'.
               html::escapeHTML($title).
               '</a>';

               $current_class = $current == $k ? ' class="active"' : '';

               $list .= sprintf($item,$link,$current_class)."\n";
          }

          return sprintf($block,$list)."\n";
     }

     # Widget function
     public static function linksWidget($w)
     {
          global $core;

          if ($w->offline)
               return;

          if (($w->homeonly == 1 && $core->url->type != 'default') ||
               ($w->homeonly == 2 && $core->url->type == 'default')) {
               return;
          }

          $links = self::getList($w->renderSubtitle('',false),'<ul>%s</ul>','<li%2$s>%1$s</li>',$w->category);

          if (empty($links)) {
               return;
          }

          return $w->renderDiv($w->content_only,'links '.$w->class,'',
               ($w->title ? $w->renderTitle(html::escapeHTML($w->title)) : '').
               $links);
     }
}

class urlBlogroll extends dcUrlHandlers
{
     public static function xbel($args)
     {
          $blogroll = new dcBlogroll($GLOBALS['core']->blog);

          try {
               $links = $blogroll->getLinks();
          } catch (Exception $e) {
               self::p404();
               return;
          }

          if ($args) {
               self::p404();
               return;
          }

          http::cache($GLOBALS['mod_files'],$GLOBALS['mod_ts']);

          header('Content-Type: text/xml; charset=UTF-8');

          echo
          '<?xml version="1.0" encoding="UTF-8"?>'."\n".
          '<!DOCTYPE xbel PUBLIC "+//IDN python.org//DTD XML Bookmark Exchange '.
          'Language 1.0//EN//XML"'."\n".
          '"http://www.python.org/topics/xml/dtds/xbel-1.0.dtd">'."\n".
          '<xbel version="1.0">'."\n".
          '<title>'.html::escapeHTML($GLOBALS['core']->blog->name)." blogroll</title>\n";

          $i = 1;
          foreach ($blogroll->getLinksHierarchy($links) as $cat_title => $links)
          {
               if ($cat_title != '') {
                    echo
                    '<folder>'."\n".
                    "<title>".html::escapeHTML($cat_title)."</title>\n";
               }

               foreach ($links as $k => $v)
               {
                    $lang = $v['link_lang'] ? ' xml:lang="'.$v['link_lang'].'"' : '';

                    echo
                    '<bookmark href="'.$v['link_href'].'"'.$lang.'>'."\n".
                    '<title>'.html::escapeHTML($v['link_title'])."</title>\n";

                    if ($v['link_desc']) {
                         echo '<desc>'.html::escapeHTML($v['link_desc'])."</desc>\n";
                    }

                    if ($v['link_xfn']) {
                         echo
                         "<info>\n".
                         '<metadata owner="http://gmpg.org/xfn/">'.$v['link_xfn']."</metadata>\n".
                         "</info>\n";
                    }

                    echo
                    "</bookmark>\n";
               }

               if ($cat_title != '') {
                    echo "</folder>\n";
               }

               $i++;
          }

          echo
          '</xbel>';
     }
}