plugin/rss.inc.php

   1 <?php
   2 // PukiWiki - Yet another WikiWikiWeb clone.
   3 // $Id: rss.inc.php,v 1.13 2004/12/25 00:39:45 henoheno Exp $
   4 //
   5 // Publishing RSS feed of RecentChanges
   6 // Usage: rss.inc.php?ver=[0.91(default)|1.0|2.0]
   7
   8 function plugin_rss_action()
   9 {
  10         global $vars, $rss_max, $page_title, $whatsnew, $trackback;
  11
  12         $version = isset($vars['ver']) ? $vars['ver'] : '';
  13         switch($version){
  14         case '':  $version = '0.91'; break; // Default
  15         case '1': $version = '1.0';  break;
  16         case '2': $version = '2.0';  break;
  17         case '0,91': /* FALLTHROUGH */
  18         case '1.0' : /* FALLTHROUGH */
  19         case '2.0' : break;
  20         default: die('Invalid RSS version!!');
  21         }
  22
  23         $recent = CACHE_DIR . 'recent.dat';
  24         if (! file_exists($recent)) die('recent.dat is not found');
  25
  26         $page_title_utf8 = mb_convert_encoding($page_title, 'UTF-8', SOURCE_ENCODING);
  27         $self  = get_script_uri();
  28
  29         // Creating <item>
  30         $items = $rdf_li = '';
  31         foreach (array_splice(file($recent), 0, $rss_max) as $line) {
  32                 list($time, $page) = explode("\t", rtrim($line));
  33                 $r_page = rawurlencode($page);
  34                 $title  = mb_convert_encoding($page, 'UTF-8', SOURCE_ENCODING);
  35
  36                 switch ($version) {
  37                 case '0.91': /* FALLTHROUGH */
  38                 case '2.0':
  39                         $date = get_date('D, d M Y H:i:s T', $time);
  40                         $date = ($version == '0.91') ?
  41                                 ' <description>' . $date . '</description>' :
  42                                 ' <pubDate>' . $date . '</pubDate>';
  43                         $items .= <<<EOD
  44 <item>
  45  <title>$title</title>
  46  <link>$self?$r_page</link>
  47 $date
  48 </item>
  49
  50 EOD;
  51                         break;
  52
  53                 case '1.0':
  54                         // Add <item> into <items>
  55                         $rdf_li .= '    <rdf:li rdf:resource="' . $self .
  56                                 '?' . $r_page . '" />' . "\n";
  57
  58                         $date = substr_replace(get_date('Y-m-d\TH:i:sO', $time), ':', -2, 0);
  59                         $trackback_ping = '';
  60                         if ($trackback) {
  61                                 $tb_id = md5($r_page);
  62                                 $trackback_ping = ' <trackback:ping>' .
  63                                         "$self?tb_id=$tb_id" . '</trackback:ping>';
  64                         }
  65                         $items .= <<<EOD
  66 <item rdf:about="$self?$r_page">
  67  <title>$title</title>
  68  <link>$self?$r_page</link>
  69  <dc:date>$date</dc:date>
  70  <dc:identifier>$self?$r_page</dc:identifier>
  71 $trackback_ping
  72 </item>
  73
  74 EOD;
  75                         break;
  76                 }
  77         }
  78
  79         // Feeding start
  80         pkwk_common_headers();
  81         header('Content-type: application/xml');
  82         print '<?xml version="1.0" encoding="UTF-8"?>' . "\n\n";
  83
  84         $r_whatsnew = rawurlencode($whatsnew);
  85         switch ($version) {
  86         case '0.91':
  87                 print '<!DOCTYPE rss PUBLIC "-//Netscape Communications//DTD RSS 0.91//EN"' .
  88                 ' "http://my.netscape.com/publish/formats/rss-0.91.dtd">' . "\n";
  89                  /* FALLTHROUGH */
  90
  91         case '2.0':
  92                 print <<<EOD
  93 <rss version="$version">
  94  <channel>
  95   <title>$page_title_utf8</title>
  96   <link>$self?$r_whatsnew</link>
  97   <description>PukiWiki RecentChanges</description>
  98   <language>ja</language>
  99
 100 $items
 101  </channel>
 102 </rss>
 103 EOD;
 104                 break;
 105
 106         case '1.0':
 107                 $xmlns_trackback = $trackback ?
 108                         '  xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/"' : '';
 109                 print <<<EOD
 110 <rdf:RDF
 111   xmlns:dc="http://purl.org/dc/elements/1.1/"
 112 $xmlns_trackback
 113   xmlns="http://purl.org/rss/1.0/"
 114   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
 115   xml:lang="ja">
 116  <channel rdf:about="$self?$r_whatsnew">
 117   <title>$page_title_utf8</title>
 118   <link>$self?$r_whatsnew</link>
 119   <description>PukiWiki RecentChanges</description>
 120   <items>
 121    <rdf:Seq>
 122 $rdf_li
 123    </rdf:Seq>
 124   </items>
 125  </channel>
 126
 127 $items
 128 </rdf:RDF>
 129 EOD;
 130                 break;
 131         }
 132         exit;
 133 }
 134 ?>