lib/RSSWriter091.php

   1 <?php
   2 // ----------------------------------------------------------------------
   3 // phpWiki
   4 // ----------------------------------------------------------------------
   5 // LICENSE
   6 //
   7 // This program is free software; you can redistribute it and/or
   8 // modify it under the terms of the GNU General Public License (GPL)
   9 // as published by the Free Software Foundation; either version 2
  10 // of the License, or (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // To read the license please visit http://www.gnu.org/copyleft/gpl.html
  18 // ----------------------------------------------------------------------
  19 // Original Author of file: Lawrence Akka
  20 // Purpose of file: Plugin and associated classes
  21 // for outputting RecentChanges in RSS 0.91 format
  22 // ----------------------------------------------------------------------
  23
  24 include_once 'lib/RssWriter.php';
  25 class RSSWriter091 extends RSSWriter
  26 {
  27     function RSSWriter091()
  28     {
  29         $this->XmlElement('rss', array('version' => "0.91"));
  30         $this->_items = array();
  31     }
  32
  33     /**
  34      * Finish construction of RSS.
  35      */
  36     function finish()
  37     {
  38         if (isset($this->_finished))
  39             return;
  40
  41         $channel = &$this->_channel;
  42         $items = &$this->_items;
  43
  44         if ($items) {
  45             foreach ($items as $i)
  46                 $channel->pushContent($i);
  47         }
  48         $this->pushContent($channel);
  49         $this->__spew();
  50         $this->_finished = true;
  51     }
  52
  53     /**
  54      * Create a new RDF <em>typedNode</em>.
  55      */
  56     function __node($type, $properties, $uri = false)
  57     {
  58         return new XmlElement($type, '',
  59             $this->__elementize($properties));
  60     }
  61
  62     /**
  63      * Write output to HTTP client.
  64      */
  65     function __spew()
  66     {
  67         header("Content-Type: application/xml; charset=" . RSS_ENCODING);
  68         printf("<?xml version=\"1.0\" encoding=\"%s\"?>\n", RSS_ENCODING);
  69         print("<!DOCTYPE rss PUBLIC \"-//Netscape Communications//DTD RSS 0.91//EN\"\n");
  70         print("\"http://my.netscape.com/publish/formats/rss-0.91.dtd\">\n\n");
  71         $this->printXML();
  72     }
  73
  74 }
  75
  76 class _RecentChanges_RssFormatter091
  77     extends _RecentChanges_RSSFormatter
  78 // This class should probably go at then of RecentChanges.php
  79 {
  80     function format($changes)
  81     {
  82         //    include_once('lib/RssWriter.php');
  83         $rss = new RssWriter091;
  84
  85         $rss->channel($this->channel_properties());
  86
  87         if (($props = $this->image_properties()))
  88             $rss->image($props);
  89         if (($props = $this->textinput_properties()))
  90             $rss->textinput($props);
  91
  92         while ($rev = $changes->next()) {
  93             $rss->addItem($this->item_properties($rev),
  94                 $this->pageURI($rev));
  95         }
  96
  97         global $request;
  98         $request->discardOutput();
  99         $rss->finish();
 100         $request->finish(); // NORETURN!!!!
 101     }
 102
 103     function channel_properties()
 104     {
 105         global $request;
 106
 107         $rc_url = WikiURL($request->getArg('pagename'), false, 'absurl');
 108
 109         return array('title' => WIKI_NAME,
 110             'description' => _("RecentChanges"),
 111             'link' => $rc_url,
 112             'language' => 'en-US');
 113
 114         /* FIXME: language should come from $LANG (or other config variable). */
 115
 116         /* FIXME: other things one might like in <channel>:
 117          * managingEditor
 118          * webmaster
 119          * lastBuildDate
 120          * copyright
 121          */
 122     }
 123
 124     function item_properties($rev)
 125     {
 126         $page = $rev->getPage();
 127         $pagename = $page->getName();
 128
 129         return array('title' => SplitPagename($pagename),
 130             'description' => $this->summary($rev),
 131             'link' => $this->pageURL($rev)
 132         );
 133     }
 134 }
 135
 136 // Local Variables:
 137 // mode: php
 138 // tab-width: 8
 139 // c-basic-offset: 4
 140 // c-hanging-comment-ender-p: nil
 141 // indent-tabs-mode: nil
 142 // End: