[Sommaire] [Imprimer]

   1  <?php
   2  /**
   3   * XML feed export
   4   *
   5   * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
   6   * @author     Andreas Gohr <andi@splitbrain.org>
   7   */
   8  
   9    if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__)).'/');
  10    require_once (DOKU_INC.'inc/init.php');
  11    require_once (DOKU_INC.'inc/common.php');
  12    require_once (DOKU_INC.'inc/events.php');
  13    require_once (DOKU_INC.'inc/parserutils.php');
  14    require_once (DOKU_INC.'inc/feedcreator.class.php');
  15    require_once (DOKU_INC.'inc/auth.php');
  16    require_once (DOKU_INC.'inc/pageutils.php');
  17  
  18    //close session
  19    session_write_close();
  20  
  21  
  22    $num   = $_REQUEST['num'];
  23    $type  = $_REQUEST['type'];
  24    $mode  = $_REQUEST['mode'];
  25    $minor = $_REQUEST['minor'];
  26    $ns    = $_REQUEST['ns'];
  27    $ltype = $_REQUEST['linkto'];
  28  
  29    if($type == '')
  30      $type = $conf['rss_type'];
  31  
  32    switch ($type){
  33      case 'rss':
  34         $type = 'RSS0.91';
  35         $mime = 'text/xml';
  36         break;
  37      case 'rss2':
  38         $type = 'RSS2.0';
  39         $mime = 'text/xml';
  40         break;
  41      case 'atom':
  42         $type = 'ATOM0.3';
  43         $mime = 'application/xml';
  44         break;
  45      case 'atom1':
  46         $type = 'ATOM1.0';
  47         $mime = 'application/atom+xml';
  48         break;
  49      default:
  50         $type = 'RSS1.0';
  51         $mime = 'application/xml';
  52    }
  53  
  54    // the feed is dynamic - we need a cache for each combo
  55    // (but most people just use the default feed so it's still effective)
  56    $cache = getCacheName($num.$type.$mode.$ns.$ltype.$_SERVER['REMOTE_USER'],'.feed');
  57  
  58    // check cacheage and deliver if nothing has changed since last
  59    // time or the update interval has not passed, also handles conditional requests
  60    header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
  61    header('Pragma: public');
  62    header('Content-Type: application/xml; charset=utf-8');
  63    $cmod = @filemtime($cache); // 0 if not exists
  64    if($cmod && (($cmod+$conf['rss_update']>time()) || ($cmod>@filemtime($conf['changelog'])))){
  65      http_conditionalRequest($cmod);
  66      if($conf['allowdebug']) header("X-CacheUsed: $cache");
  67      print io_readFile($cache);
  68      exit;
  69    } else {
  70      http_conditionalRequest(time());
  71    }
  72  
  73    // create new feed
  74    $rss = new DokuWikiFeedCreator();
  75    $rss->title = $conf['title'].(($ns) ? ' '.$ns : '');
  76    $rss->link  = DOKU_URL;
  77    $rss->syndicationURL = DOKU_URL.'feed.php';
  78    $rss->cssStyleSheet  = DOKU_URL.'lib/styles/feed.css';
  79  
  80    $image = new FeedImage();
  81    $image->title = $conf['title'];
  82    $image->url = DOKU_URL."lib/images/favicon.ico";
  83    $image->link = DOKU_URL;
  84    $rss->image = $image;
  85  
  86    if($mode == 'list'){
  87      rssListNamespace($rss,$ns);
  88    }else{
  89      rssRecentChanges($rss,$num,$ltype,$ns,$minor);
  90    }
  91  
  92    $feed = $rss->createFeed($type,'utf-8');
  93  
  94    // save cachefile
  95    io_saveFile($cache,$feed);
  96  
  97    // finally deliver
  98    print $feed;
  99  
 100  // ---------------------------------------------------------------- //
 101  
 102  /**
 103   * Add recent changed pages to a feed object
 104   *
 105   * @author Andreas Gohr <andi@splitbrain.org>
 106   */
 107  function rssRecentChanges(&$rss,$num,$ltype,$ns,$minor){
 108      global $conf;
 109      global $auth;
 110  
 111      if(!$num) $num = $conf['recent'];
 112      $guardmail = ($conf['mailguard'] != '' && $conf['mailguard'] != 'none');
 113  
 114  
 115      $flags = RECENTS_SKIP_DELETED;
 116      if(!$minor) $flags += RECENTS_SKIP_MINORS;
 117  
 118      $recents = getRecents(0,$num,$ns,$flags);
 119  
 120      foreach($recents as $recent){
 121          $item = new FeedItem();
 122          $meta = p_get_metadata($recent['id']);
 123  
 124          if($conf['useheading'] && $meta['title']){
 125              $item->title = $meta['title'];
 126          }else{
 127              $item->title = $recent['id'];
 128          }
 129          if(!empty($recent['sum'])){
 130              $item->title .= ' - '.strip_tags($recent['sum']);
 131          }
 132  
 133          if(empty($ltype)) $ltype = $conf['rss_linkto'];
 134  
 135          switch ($ltype){
 136              case 'page':
 137                  $item->link = wl($recent['id'],'rev='.$recent['date'],true);
 138                  break;
 139              case 'rev':
 140                  $item->link = wl($recent['id'],'do=revisions&rev='.$recent['date'],true);
 141                  break;
 142              case 'current':
 143                  $item->link = wl($recent['id'], '', true);
 144                  break;
 145              case 'diff':
 146              default:
 147                  $item->link = wl($recent['id'],'rev='.$recent['date'].'&do=diff'.$recent['date'],true);
 148          }
 149  
 150          $item->description = $meta['description']['abstract'];
 151          $item->date        = date('r',$recent['date']);
 152          $cat = getNS($recent['id']);
 153          if($cat) $item->category = $cat;
 154  
 155          // FIXME should the user be pulled from metadata as well?
 156          $user = null;
 157          $user = @$recent['user']; // the @ spares time repeating lookup
 158          $item->author = '';
 159  
 160          if($user){
 161              $userInfo = $auth->getUserData($user);
 162              $item->author = $userInfo['name'];
 163              if($guardmail) {
 164              //cannot obfuscate because some RSS readers may check validity
 165                  $item->authorEmail = $user.'@'.$recent['ip'];
 166              }else{
 167                  $item->authorEmail = $userInfo['mail'];
 168              }
 169          }else{
 170              $item->authorEmail = 'anonymous@'.$recent['ip'];
 171          }
 172          $rss->addItem($item);
 173      }
 174  }
 175  
 176  /**
 177   * Add all pages of a namespace to a feedobject
 178   *
 179   * @author Andreas Gohr <andi@splitbrain.org>
 180   */
 181  function rssListNamespace(&$rss,$ns){
 182      require_once (DOKU_INC.'inc/search.php');
 183      global $conf;
 184  
 185      $ns=':'.cleanID($ns);
 186      $ns=str_replace(':','/',$ns);
 187  
 188      $data = array();
 189      sort($data);
 190      search($data,$conf['datadir'],'search_list','',$ns);
 191      foreach($data as $row){
 192          $item = new FeedItem();
 193  
 194          $id   = $row['id'];
 195          $date = filemtime(wikiFN($id));
 196          $meta = p_get_metadata($id);
 197  
 198          if($conf['useheading'] && $meta['title']){
 199              $item->title = $meta['title'];
 200          }else{
 201              $item->title = $id;
 202          }
 203  
 204          $item->link        = wl($id,'rev='.$date,true);
 205          $item->description = $meta['description']['abstract'];
 206          $item->date        = date('r',$date);
 207          $rss->addItem($item);
 208    }
 209  }
 210  
 211  //Setup VIM: ex: et ts=4 enc=utf-8 :
 212  ?>