[[sources:feed.php]]
 
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  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
  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.   $cmod = @filemtime($cache); // 0 if not exists
  58.   if ($cmod && (@filemtime(DOKU_CONF.'local.php')>$cmod || @filemtime(DOKU_CONF.'dokuwiki.php')>$cmod)) {
  59.     // ignore cache if feed prefs may have changed
  60.     $cmod = 0;
  61.   }
  62.  
  63.   // check cacheage and deliver if nothing has changed since last
  64.   // time or the update interval has not passed, also handles conditional requests
  65.   header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
  66.   header('Pragma: public');
  67.   header('Content-Type: application/xml; charset=utf-8');
  68.   if($cmod && (($cmod+$conf['rss_update']>time()) || ($cmod>@filemtime($conf['changelog'])))){
  69.     http_conditionalRequest($cmod);
  70.     if($conf['allowdebug']) header("X-CacheUsed: $cache");
  71.     print io_readFile($cache);
  72.     exit;
  73.   } else {
  74.     http_conditionalRequest(time());
  75.   }
  76.  
  77.   // create new feed
  78.   $rss = new DokuWikiFeedCreator();
  79.   $rss->title = $conf['title'].(($ns) ? ' '.$ns : '');
  80.   $rss->link  = DOKU_URL;
  81.   $rss->syndicationURL = DOKU_URL.'feed.php';
  82.   $rss->cssStyleSheet  = DOKU_URL.'lib/exe/css.php?s=feed';
  83.  
  84.   $image = new FeedImage();
  85.   $image->title = $conf['title'];
  86.   $image->url = DOKU_URL."lib/images/favicon.ico";
  87.   $image->link = DOKU_URL;
  88.   $rss->image = $image;
  89.  
  90.   if($mode == 'list'){
  91.     rssListNamespace($rss,$ns);
  92.   }else{
  93.     rssRecentChanges($rss,$num,$ltype,$ns,$minor);
  94.   }
  95.  
  96.   $feed = $rss->createFeed($type,'utf-8');
  97.  
  98.   // save cachefile
  99.   io_saveFile($cache,$feed);
  100.  
  101.   // finally deliver
  102.   print $feed;
  103.  
  104. // ---------------------------------------------------------------- //
  105.  
  106. /**
  107. * Add recent changed pages to a feed object
  108. *
  109. * @author Andreas Gohr <andi@splitbrain.org>
  110. */
  111. function rssRecentChanges(&$rss,$num,$ltype,$ns,$minor){
  112.     global $conf;
  113.     global $auth;
  114.  
  115.     if(!$num) $num = $conf['recent'];
  116.     $guardmail = ($conf['mailguard'] != '' && $conf['mailguard'] != 'none');
  117.  
  118.  
  119.     $flags = RECENTS_SKIP_DELETED;
  120.     if(!$minor) $flags += RECENTS_SKIP_MINORS;
  121.  
  122.     $recents = getRecents(0,$num,$ns,$flags);
  123.  
  124.     foreach($recents as $recent){
  125.         $item = new FeedItem();
  126.         $meta = p_get_metadata($recent['id']);
  127.  
  128.         if($conf['useheading'] && $meta['title']){
  129.             $item->title = $meta['title'];
  130.         }else{
  131.             $item->title = $recent['id'];
  132.         }
  133.         if($conf['rss_show_summary'] && !empty($recent['sum'])){
  134.             $item->title .= ' - '.strip_tags($recent['sum']);
  135.         }
  136.  
  137.         if(empty($ltype)) $ltype = $conf['rss_linkto'];
  138.  
  139.         switch ($ltype){
  140.             case 'page':
  141.                 $item->link = wl($recent['id'],'rev='.$recent['date'],true,'&');
  142.                 break;
  143.             case 'rev':
  144.                 $item->link = wl($recent['id'],'do=revisions&rev='.$recent['date'],true,'&');
  145.                 break;
  146.             case 'current':
  147.                 $item->link = wl($recent['id'], '', true,'&');
  148.                 break;
  149.             case 'diff':
  150.             default:
  151.                 $item->link = wl($recent['id'],'rev='.$recent['date'].'&do=diff',true,'&');
  152.         }
  153.  
  154.         $item->description = $meta['description']['abstract'];
  155.         $item->date        = date('r',$recent['date']);
  156.         $cat = getNS($recent['id']);
  157.         if($cat) $item->category = $cat;
  158.  
  159.         // FIXME should the user be pulled from metadata as well?
  160.         $user = null;
  161.         $user = @$recent['user']; // the @ spares time repeating lookup
  162.         $item->author = '';
  163.  
  164.         if($user && $conf['useacl'] && $auth){
  165.             $userInfo = $auth->getUserData($user);
  166.             $item->author = $userInfo['name'];
  167.             if($guardmail) {
  168.             //cannot obfuscate because some RSS readers may check validity
  169.                 $item->authorEmail = $user.'@'.$recent['ip'];
  170.             }else{
  171.                 $item->authorEmail = $userInfo['mail'];
  172.             }
  173.         }elseif($user){
  174.             // this happens when no ACL but some Apache auth is used
  175.             $item->author      = $user;
  176.             $item->authorEmail = $user.'@'.$recent['ip'];
  177.         }else{
  178.             $item->authorEmail = 'anonymous@'.$recent['ip'];
  179.         }
  180.         $rss->addItem($item);
  181.     }
  182. }
  183.  
  184. /**
  185. * Add all pages of a namespace to a feedobject
  186. *
  187. * @author Andreas Gohr <andi@splitbrain.org>
  188. */
  189. function rssListNamespace(&$rss,$ns){
  190.     require_once(DOKU_INC.'inc/search.php');
  191.     global $conf;
  192.  
  193.     $ns=':'.cleanID($ns);
  194.     $ns=str_replace(':','/',$ns);
  195.  
  196.     $data = array();
  197.     sort($data);
  198.     search($data,$conf['datadir'],'search_list','',$ns);
  199.     foreach($data as $row){
  200.         $item = new FeedItem();
  201.  
  202.         $id   = $row['id'];
  203.         $date = filemtime(wikiFN($id));
  204.         $meta = p_get_metadata($id);
  205.  
  206.         if($conf['useheading'] && $meta['title']){
  207.             $item->title = $meta['title'];
  208.         }else{
  209.             $item->title = $id;
  210.         }
  211.  
  212.         $item->link        = wl($id,'rev='.$date,true,'&');
  213.         $item->description = $meta['description']['abstract'];
  214.         $item->date        = date('r',$date);
  215.         $rss->addItem($item);
  216.   }
  217. }
  218.  
  219. //Setup VIM: ex: et ts=4 enc=utf-8 :
  220. ?>
  221.  
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sources/feed.php.txt · Dernière modification: 2007/12/02 04:57 (édition externe)
 
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