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 $minor = $_REQUEST['minor']; 24 $ns = $_REQUEST['ns']; 25 $ltype = $_REQUEST['linkto']; 26 27 if($type == '') 28 $type = $conf['rss_type']; 29 30 switch ($type){ 31 case 'rss': 32 $type = 'RSS0.9'; 33 break; 34 case 'rss2': 35 $type = 'RSS2.0'; 36 break; 37 case 'atom': 38 $type = 'ATOM0.3'; 39 break; 40 default: 41 $type = 'RSS1.0'; 42 } 43 44 // the feed is dynamic - we need a cache for each combo 45 // (but most people just use the default feed so it's still effective) 46 $cache = getCacheName($num.$type.$mode.$ns.$ltype.$_SERVER['REMOTE_USER'],'.feed'); 47 48 // check cacheage and deliver if nothing has changed since last 49 // time (with 5 minutes settletime) 50 $cmod = @filemtime($cache); // 0 if not exists 51 if($cmod && ($cmod+(5*60) >= @filemtime($conf['changelog']))){ 52 header('Content-Type: application/xml; charset=utf-8'); 53 print io_readFile($cache); 54 exit; 55 } 56 57 // create new feed 58 $rss = new DokuWikiFeedCreator(); 59 $rss->title = $conf['title'].(($ns) ? ' '.$ns : ''); 60 $rss->link = DOKU_URL; 61 $rss->syndicationURL = DOKU_URL.'feed.php'; 62 $rss->cssStyleSheet = DOKU_URL.'lib/styles/feed.css'; 63 64 $image = new FeedImage(); 65 $image->title = $conf['title']; 66 $image->url = DOKU_URL."lib/images/favicon.ico"; 67 $image->link = DOKU_URL; 68 $rss->image = $image; 69 70 if($mode == 'list'){ 71 rssListNamespace($rss,$ns); 72 }else{ 73 rssRecentChanges($rss,$num,$ltype,$ns,$minor); 74 } 75 76 $feed = $rss->createFeed($type,'utf-8'); 77 78 // save cachefile 79 io_saveFile($cache,$feed); 80 81 // finally deliver 82 header('Content-Type: application/xml; charset=utf-8'); 83 print $feed; 84 85// ---------------------------------------------------------------- // 86 87/** 88 * Add recent changed to a feed object 89 * 90 * @author Andreas Gohr <andi@splitbrain.org> 91 */ 92function rssRecentChanges(&$rss,$num,$ltype,$ns,$minor){ 93 global $conf; 94 if(!$num) $num = $conf['recent']; 95 $guardmail = ($conf['mailguard'] != '' && $conf['mailguard'] != 'none'); 96 97 98 $flags = RECENTS_SKIP_DELETED; 99 if(!$minor) $flags += RECENTS_SKIP_MINORS; 100 101 $recents = getRecents(0,$num,$ns,$flags); 102 103 //this can take some time if a lot of recaching has to be done 104 @set_time_limit(90); // set max execution time 105 106 foreach($recents as $recent){ 107 108 $item = new FeedItem(); 109 $item->title = $recent['id']; 110 $xhtml = p_wiki_xhtml($recent['id'],'',false); 111 112 if($conf['useheading']) { 113 $matches = array(); 114 if(preg_match('|<h([1-9])>(.*?)</h\1>|', $xhtml, $matches)) 115 $item->title = trim($matches[2]); 116 } 117 if(!empty($recent['sum'])){ 118 $item->title .= ' - '.strip_tags($recent['sum']); 119 } 120 121 $desc = cleanDesc($xhtml); 122 123 if(empty($ltype)) 124 $ltype = $conf['rss_linkto']; 125 126 switch ($ltype){ 127 case 'page': 128 $item->link = wl($recent['id'],'rev='.$recent['date'],true); 129 break; 130 case 'rev': 131 $item->link = wl($recent['id'],'do=revisions&rev='.$recent['date'],true); 132 break; 133 case 'current': 134 $item->link = wl($recent['id'], '', true); 135 break; 136 case 'diff': 137 default: 138 $item->link = wl($recent['id'],'do=diff'.$recent['date'],true); 139 } 140 141 $item->description = $desc; 142 $item->date = date('r',$recent['date']); 143 $cat = getNS($recent['id']); 144 if($cat) $item->category = $cat; 145 146 $user = null; 147 $user = @$recent['user']; // the @ spares time repeating lookup 148 $item->author = ''; 149 150 if($user){ 151 $userInfo = auth_getUserData($user); 152 $item->author = $userInfo['name']; 153 if($guardmail) { 154 //cannot obfuscate because some RSS readers may check validity 155 $item->authorEmail = $user.'@'.$recent['ip']; 156 }else{ 157 $item->authorEmail = $userInfo['mail']; 158 } 159 }else{ 160 $item->authorEmail = 'anonymous@'.$recent['ip']; 161 } 162 $rss->addItem($item); 163 } 164} 165 166/** 167 * Add all pages of a namespace to a feedobject 168 * 169 * @author Andreas Gohr <andi@splitbrain.org> 170 */ 171function rssListNamespace(&$rss,$ns){ 172 require_once(DOKU_INC.'inc/search.php'); 173 global $conf; 174 175 $ns=':'.cleanID($ns); 176 $ns=str_replace(':','/',$ns); 177 178 $data = array(); 179 sort($data); 180 search($data,$conf['datadir'],'search_list','',$ns); 181 foreach($data as $row){ 182 $item = new FeedItem(); 183 184 $id = $row['id']; 185 $date = filemtime(wikiFN($id)); 186 $xhtml = p_wiki_xhtml($id,'',false); 187 $desc = cleanDesc($xhtml); 188 $item->title = $id; 189 190 if($conf['useheading']) { 191 $matches = array(); 192 if(preg_match('|<h([1-9])>(.*?)</h\1>|', $xhtml, $matches)) 193 $item->title = trim($matches[2]); 194 } 195 196 $item->link = wl($id,'rev='.$date,true); 197 $item->description = $desc; 198 $item->date = date('r',$date); 199 $rss->addItem($item); 200 } 201} 202 203/** 204 * Clean description for feed inclusion 205 * 206 * Removes HTML tags and line breaks and trims the text to 207 * 250 chars 208 * 209 * @author Andreas Gohr <andi@splitbrain.org> 210 */ 211function cleanDesc($desc){ 212 //start description at text of first paragraph 213 $matches = array(); 214 if(preg_match('/<p>|<p\s.*?>/', $desc, $matches, PREG_OFFSET_CAPTURE)) 215 $desc = substr($desc, $matches[0][1]); 216 217 //remove TOC 218 $desc = preg_replace('!<div class="toc">.*?(</div>\n</div>)!s','',$desc); 219 $desc = strip_tags($desc); 220 $desc = preg_replace('/[\n\r\t]/',' ',$desc); 221 $desc = preg_replace('/ /',' ',$desc); 222 $desc = utf8_substr($desc,0,250); 223 $desc = $desc.'...'; 224 return $desc; 225} 226 227?> 228