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/parserutils.php'); 13 require_once(DOKU_INC.'inc/feedcreator.class.php'); 14 require_once(DOKU_INC.'inc/auth.php'); 15 16 //close session 17 session_write_close(); 18 19 20 $num = $_REQUEST['num']; 21 $type = $_REQUEST['type']; 22 $mode = $_REQUEST['mode']; 23 $ns = $_REQUEST['ns']; 24 $ltype = $_REQUEST['linkto']; 25 26 if($type == '') 27 $type = $conf['rss_type']; 28 29 switch ($type){ 30 case 'rss': 31 $type = 'RSS0.9'; 32 break; 33 case 'rss2': 34 $type = 'RSS2.0'; 35 break; 36 case 'atom': 37 $type = 'ATOM0.3'; 38 break; 39 default: 40 $type = 'RSS1.0'; 41 } 42 43 // the feed is dynamic - we need a cache for each combo 44 // (but most people just use the default feed so it's still effective) 45 $cache = getCacheName($num.$type.$mode.$ns.$ltype.$_SERVER['REMOTE_USER'],'.feed'); 46 47 // check cacheage and deliver if nothing has changed since last 48 // time (with 5 minutes settletime) 49 $cmod = @filemtime($cache); // 0 if not exists 50 if($cmod && ($cmod+(5*60) >= @filemtime($conf['changelog']))){ 51 header('Content-Type: application/xml; charset=utf-8'); 52 print io_readFile($cache); 53 exit; 54 } 55 56 // create new feed 57 $rss = new DokuWikiFeedCreator(); 58 $rss->title = $conf['title'].(($ns) ? ' '.$ns : ''); 59 $rss->link = DOKU_URL; 60 $rss->syndicationURL = DOKU_URL.'feed.php'; 61 $rss->cssStyleSheet = DOKU_URL.'lib/styles/feed.css'; 62 63 $image = new FeedImage(); 64 $image->title = $conf['title']; 65 $image->url = DOKU_URL."lib/images/favicon.ico"; 66 $image->link = DOKU_URL; 67 $rss->image = $image; 68 69 if($mode == 'list'){ 70 rssListNamespace($rss,$ns); 71 }else{ 72 rssRecentChanges($rss,$num,$ltype,$ns); 73 } 74 75 $feed = $rss->createFeed($type,'utf-8'); 76 77 // save cachefile 78 io_saveFile($cache,$feed); 79 80 // finally deliver 81 header('Content-Type: application/xml; charset=utf-8'); 82 print $feed; 83 84// ---------------------------------------------------------------- // 85 86/** 87 * Add recent changed to a feed object 88 * 89 * @author Andreas Gohr <andi@splitbrain.org> 90 */ 91function rssRecentChanges(&$rss,$num,$ltype,$ns){ 92 global $conf; 93 if(!$num) $num = $conf['recent']; 94 95 $recents = getRecents(0,$num,false,$ns); 96 97 //this can take some time if a lot of recaching has to be done 98 @set_time_limit(90); // set max execution time 99 100 foreach(array_keys($recents) as $id){ 101 102 $item = new FeedItem(); 103 $item->title = $id; 104 $xhtml = p_wiki_xhtml($id,'',false); 105 106 if($conf['useheading']) { 107 $matches = array(); 108 if(preg_match('|<h([1-9])>(.*?)</h\1>|', $xhtml, $matches)) 109 $item->title = trim($matches[2]); 110 } 111 if(!empty($recents[$id]['sum'])){ 112 $item->title .= ' - '.strip_tags($recents[$id]['sum']); 113 } 114 115 $desc = cleanDesc($xhtml); 116 117 if(empty($ltype)) 118 $ltype = $conf['rss_linkto']; 119 120 switch ($ltype){ 121 case 'page': 122 $item->link = wl($id,'rev='.$recents[$id]['date'],true); 123 break; 124 case 'rev': 125 $item->link = wl($id,'do=revisions&rev='.$recents[$id]['date'],true); 126 break; 127 case 'current': 128 $item->link = wl($id, '', true); 129 break; 130 case 'diff': 131 default: 132 $item->link = wl($id,'do=diff&'.$recents[$id]['date'],true); 133 } 134 135 $item->description = $desc; 136 $item->date = date('r',$recents[$id]['date']); 137 if(strpos($id,':')!==false){ 138 $item->category = substr($id,0,strrpos($id,':')); 139 } 140 if($recents[$id]['user']){ 141 $item->author = $recents[$id]['user'].'@'; 142 }else{ 143 $item->author = 'anonymous@'; 144 } 145 $item->author .= $recents[$id]['ip']; 146 $rss->addItem($item); 147 } 148} 149 150/** 151 * Add all pages of a namespace to a feedobject 152 * 153 * @author Andreas Gohr <andi@splitbrain.org> 154 */ 155function rssListNamespace(&$rss,$ns){ 156 require_once(DOKU_INC.'inc/search.php'); 157 global $conf; 158 159 $ns=':'.cleanID($ns); 160 $ns=str_replace(':','/',$ns); 161 162 $data = array(); 163 sort($data); 164 search($data,$conf['datadir'],'search_list','',$ns); 165 foreach($data as $row){ 166 $id = $row['id']; 167 $date = filemtime(wikiFN($id)); 168 $desc = cleanDesc(p_wiki_xhtml($id,'',false)); 169 $item = new FeedItem(); 170 $item->title = $id; 171 $item->link = wl($id,'rev='.$date,true); 172 $item->description = $desc; 173 $item->date = date('r',$date); 174 $rss->addItem($item); 175 } 176} 177 178/** 179 * Clean description for feed inclusion 180 * 181 * Removes HTML tags and line breaks and trims the text to 182 * 250 chars 183 * 184 * @author Andreas Gohr <andi@splitbrain.org> 185 */ 186function cleanDesc($desc){ 187 //start description at text of first paragraph 188 $matches = array(); 189 if(preg_match('/<p>|<p\s.*?>/', $desc, $matches, PREG_OFFSET_CAPTURE)) 190 $desc = substr($desc, $matches[0][1]); 191 192 //remove TOC 193 $desc = preg_replace('!<div class="toc">.*?(</div>\n</div>)!s','',$desc); 194 $desc = strip_tags($desc); 195 $desc = preg_replace('/[\n\r\t]/',' ',$desc); 196 $desc = preg_replace('/ /',' ',$desc); 197 $desc = utf8_substr($desc,0,250); 198 $desc = $desc.'...'; 199 return $desc; 200} 201 202?> 203