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 $guardmail = ($conf['mailguard'] != '' && $conf['mailguard'] != 'none'); 95 96 $recents = getRecents(0,$num,false,$ns); 97 98 //this can take some time if a lot of recaching has to be done 99 @set_time_limit(90); // set max execution time 100 101 foreach($recents as $recent){ 102 103 $item = new FeedItem(); 104 $item->title = $recent['id']; 105 $xhtml = p_wiki_xhtml($recent['id'],'',false); 106 107 if($conf['useheading']) { 108 $matches = array(); 109 if(preg_match('|<h([1-9])>(.*?)</h\1>|', $xhtml, $matches)) 110 $item->title = trim($matches[2]); 111 } 112 if(!empty($recent['sum'])){ 113 $item->title .= ' - '.strip_tags($recent['sum']); 114 } 115 116 $desc = cleanDesc($xhtml); 117 118 if(empty($ltype)) 119 $ltype = $conf['rss_linkto']; 120 121 switch ($ltype){ 122 case 'page': 123 $item->link = wl($recent['id'],'rev='.$recent['date'],true); 124 break; 125 case 'rev': 126 $item->link = wl($recent['id'],'do=revisions&rev='.$recent['date'],true); 127 break; 128 case 'current': 129 $item->link = wl($recent['id'], '', true); 130 break; 131 case 'diff': 132 default: 133 $item->link = wl($recent['id'],'do=diff&'.$recent['date'],true); 134 } 135 136 $item->description = $desc; 137 $item->date = date('r',$recent['date']); 138 $cat = getNS($recent['id']); 139 if($cat) $item->category = $cat; 140 141 $user = null; 142 $user = @$recent['user']; // the @ spares time repeating lookup 143 $item->author = ''; 144 145 if($user){ 146 $userInfo = auth_getUserData($user); 147 $item->author = $userInfo['name']; 148 if($guardmail) { 149 //cannot obfuscate because some RSS readers may check validity 150 $item->authorEmail = $user.'@'.$recent['ip']; 151 }else{ 152 $item->authorEmail = $userInfo['mail']; 153 } 154 }else{ 155 $item->authorEmail = 'anonymous@'.$recent['ip']; 156 } 157 $rss->addItem($item); 158 } 159} 160 161/** 162 * Add all pages of a namespace to a feedobject 163 * 164 * @author Andreas Gohr <andi@splitbrain.org> 165 */ 166function rssListNamespace(&$rss,$ns){ 167 require_once(DOKU_INC.'inc/search.php'); 168 global $conf; 169 170 $ns=':'.cleanID($ns); 171 $ns=str_replace(':','/',$ns); 172 173 $data = array(); 174 sort($data); 175 search($data,$conf['datadir'],'search_list','',$ns); 176 foreach($data as $row){ 177 $id = $row['id']; 178 $date = filemtime(wikiFN($id)); 179 $desc = cleanDesc(p_wiki_xhtml($id,'',false)); 180 $item = new FeedItem(); 181 $item->title = $id; 182 $item->link = wl($id,'rev='.$date,true); 183 $item->description = $desc; 184 $item->date = date('r',$date); 185 $rss->addItem($item); 186 } 187} 188 189/** 190 * Clean description for feed inclusion 191 * 192 * Removes HTML tags and line breaks and trims the text to 193 * 250 chars 194 * 195 * @author Andreas Gohr <andi@splitbrain.org> 196 */ 197function cleanDesc($desc){ 198 //start description at text of first paragraph 199 $matches = array(); 200 if(preg_match('/<p>|<p\s.*?>/', $desc, $matches, PREG_OFFSET_CAPTURE)) 201 $desc = substr($desc, $matches[0][1]); 202 203 //remove TOC 204 $desc = preg_replace('!<div class="toc">.*?(</div>\n</div>)!s','',$desc); 205 $desc = strip_tags($desc); 206 $desc = preg_replace('/[\n\r\t]/',' ',$desc); 207 $desc = preg_replace('/ /',' ',$desc); 208 $desc = utf8_substr($desc,0,250); 209 $desc = $desc.'...'; 210 return $desc; 211} 212 213?> 214