plugin/rss.inc.php

   1 <?php
   2 /////////////////////////////////////////////////
   3 // PukiWiki - Yet another WikiWikiWeb clone.
   4 //
   5 // $Id: rss.inc.php,v 1.11 2004/12/02 11:34:25 henoheno Exp $
   6 //
   7 // Publishing RSS feed of RecentChanges
   8 // HOW TO USE: rss.inc.php?ver=[0.91(default)|1.0|2.0]
   9
  10 function plugin_rss_action()
  11 {
  12         global $vars, $script, $rss_max, $page_title, $whatsnew, $trackback;
  13
  14         $self = (preg_match('#^https?://#', $script) ? $script : get_script_uri());
  15         if ($self === FALSE) die('please set "$script" at INI_FILE');
  16
  17         $recent = CACHE_DIR . 'recent.dat';
  18         if (! file_exists($recent)) die('recent.dat is not found');
  19
  20         $version = isset($vars['ver']) ? $vars['ver'] : '';
  21         switch($version){
  22                 case '':  $version = '0.91'; break; // Default
  23                 case '1': $version = '1.0';  break;
  24                 case '2': $version = '2.0';  break;
  25         }
  26         $page_title_utf8 = mb_convert_encoding($page_title, 'UTF-8', SOURCE_ENCODING);
  27
  28         $items = $rdf_li = '';
  29         foreach (array_splice(file($recent), 0, $rss_max) as $line) {
  30                 list($time, $page) = explode("\t", rtrim($line));
  31                 $r_page = rawurlencode($page);
  32                 $title  = mb_convert_encoding($page, 'UTF-8', SOURCE_ENCODING);
  33
  34                 switch ($version) {
  35                 case '0.91': /* FALLTHROUGH */
  36                 case '2.0':
  37                         $date = get_date('D, d M Y H:i:s T', $time);
  38                         $date = ($version == '0.91') ?
  39                                 ' <description>' . $date . '</description>' :
  40                                 ' <pubDate>' . $date . '</pubDate>';
  41                         $items .= <<<EOD
  42 <item>
  43  <title>$title</title>
  44  <link>$self?$r_page</link>
  45 $date
  46 </item>
  47
  48 EOD;
  49                         break;
  50
  51                 case '1.0':
  52                         $dc_date = substr_replace(get_date('Y-m-d\TH:i:sO', $time), ':', -2, 0);
  53                         $dc_identifier = " <dc:identifier>$self?$r_page</dc:identifier>";
  54                         $trackback_ping = '';
  55                         $rdf_li .= "    <rdf:li rdf:resource=\"$self?$r_page\" />\n";
  56                         if ($trackback) {
  57                                 $tb_id = md5($r_page);
  58                                 $trackback_ping = " <trackback:ping>$self?tb_id=$tb_id</trackback:ping>";
  59                         }
  60                         $items .= <<<EOD
  61 <item rdf:about="$self?$r_page">
  62  <title>$title</title>
  63  <link>$self?$r_page</link>
  64  <dc:date>$dc_date</dc:date>
  65 $dc_identifier
  66 $trackback_ping
  67 </item>
  68
  69 EOD;
  70                         break;
  71                 default:
  72                         die('Invalid RSS version!!');
  73                 }
  74         }
  75
  76         // Feeding start
  77         pkwk_headers_sent();
  78         header('Content-type: application/xml');
  79         print '<?xml version="1.0" encoding="UTF-8"?>' . "\n\n";
  80
  81         $r_whatsnew = rawurlencode($whatsnew);
  82         switch ($version) {
  83         case '0.91':
  84                 print '<!DOCTYPE rss PUBLIC "-//Netscape Communications//DTD RSS 0.91//EN"' .
  85                 ' "http://my.netscape.com/publish/formats/rss-0.91.dtd">' . "\n";
  86                  /* FALLTHROUGH */
  87
  88         case '2.0':
  89                 print <<<EOD
  90 <rss version="$version">
  91  <channel>
  92   <title>$page_title_utf8</title>
  93   <link>$self?$r_whatsnew</link>
  94   <description>PukiWiki RecentChanges</description>
  95   <language>ja</language>
  96
  97 $items
  98  </channel>
  99 </rss>
 100 EOD;
 101                 break;
 102
 103         case '1.0':
 104                 $xmlns_trackback = $trackback ?
 105                         '  xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/"' : '';
 106                 print <<<EOD
 107 <rdf:RDF
 108   xmlns:dc="http://purl.org/dc/elements/1.1/"
 109 $xmlns_trackback
 110   xmlns="http://purl.org/rss/1.0/"
 111   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
 112   xml:lang="ja">
 113  <channel rdf:about="$self?$r_whatsnew">
 114   <title>$page_title_utf8</title>
 115   <link>$self?$r_whatsnew</link>
 116   <description>PukiWiki RecentChanges</description>
 117   <items>
 118    <rdf:Seq>
 119 $rdf_li
 120    </rdf:Seq>
 121   </items>
 122  </channel>
 123
 124 $items
 125 </rdf:RDF>
 126 EOD;
 127                 break;
 128         }
 129         exit;
 130 }
 131 ?>