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 rcs_id('$Id: RSSWriter091.php,v 1.3 2002-01-19 21:36:31 lakka Exp $');
  25
  26 include_once "lib/RSSWriter.php";
  27 class RSSWriter091 extends RSSWriter
  28 {
  29         function RSSWriter091()
  30         {
  31                 $this->XmlElement('rss', array('version' => "0.91"));
  32             $this->_items = array();
  33         }
  34   /**
  35    * Finish construction of RSS.
  36    */
  37         function finish()
  38         {
  39         if (isset($this->_finished))
  40             return;
  41
  42         $channel = &$this->_channel;
  43         $items = &$this->_items;
  44
  45                 if ($items)
  46                 {
  47                 foreach ($items as $i)
  48             $channel->add($i);
  49                 }
  50         $this->add($channel);
  51                 $this->__spew();
  52         $this->_finished = true;
  53     }
  54
  55     /**
  56      * Create a new RDF <em>typedNode</em>.
  57      */
  58     function __node($type, $properties, $uri = false) {
  59         return new XmlElement($type, '',
  60                               $this->__elementize($properties));
  61     }
  62
  63     /**
  64      * Write output to HTTP client.
  65      */
  66     function __spew() {
  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         echo $this->asString();
  72     }
  73
  74
  75 }
  76
  77
  78
  79 class _RecentChanges_RssFormatter091
  80 extends _RecentChanges_RSSFormatter
  81 // This class should probably go at then of RecentChanges.php
  82 {
  83         function format ($changes)
  84         {
  85     //    include_once('lib/RssWriter.php');
  86         $rss = new RssWriter091;
  87
  88
  89         $rss->channel($this->channel_properties());
  90
  91         if (($props = $this->image_properties()))
  92             $rss->image($props);
  93         if (($props = $this->textinput_properties()))
  94             $rss->textinput($props);
  95
  96         while ($rev = $changes->next()) {
  97             $rss->addItem($this->item_properties($rev),
  98                           $this->pageURI($rev));
  99         }
 100
 101         $rss->finish();
 102         printf("\n<!-- Generated by PhpWiki:\n%s-->\n", $GLOBALS['RCS_IDS']);
 103         ExitWiki();             // NORETURN!!!!
 104     }
 105
 106
 107     function channel_properties ()
 108         {
 109         global $request;
 110
 111         $rc_url = WikiURL($request->getArg('pagename'), false, 'absurl');
 112
 113         return array('title' => WIKI_NAME,
 114                      'description' => _("RecentChanges"),
 115                      'link' => $rc_url,
 116                      'language' => 'EN-us');
 117
 118             /* FIXME: other things one might like in <channel>:
 119              * managingEditor
 120              * webmaster
 121              * lastBuildDate
 122              * copyright
 123              */
 124            }
 125
 126
 127     function item_properties ($rev)
 128         {
 129         $page = $rev->getPage();
 130         $pagename = $page->getName();
 131
 132         return array( 'title'           => split_pagename($pagename),
 133                       'description'     => $this->summary($rev),
 134                       'link'            => $this->pageURL($rev)
 135                       );
 136     }
 137
 138 }
 139
 140 ?>