1 <?php
  2 /**
  3  * @package     Joomla.Platform
  4  * @subpackage  Document
  5  *
  6  * @copyright   Copyright (C) 2005 - 2017 Open Source Matters, Inc. All rights reserved.
  7  * @license     GNU General Public License version 2 or later; see LICENSE
  8  */
  9 
 10 defined('JPATH_PLATFORM') or die;
 11 
 12 /**
 13  * JDocumentRendererRSS is a feed that implements RSS 2.0 Specification
 14  *
 15  * @link   http://www.rssboard.org/rss-specification
 16  * @since  3.5
 17  *
 18  * @property-read  JDocumentFeed  $_doc  Reference to the JDocument object that instantiated the renderer
 19  */
 20 class JDocumentRendererFeedRss extends JDocumentRenderer
 21 {
 22     /**
 23      * Renderer mime type
 24      *
 25      * @var    string
 26      * @since  3.5
 27      */
 28     protected $_mime = 'application/rss+xml';
 29 
 30     /**
 31      * Render the feed.
 32      *
 33      * @param   string  $name     The name of the element to render
 34      * @param   array   $params   Array of values
 35      * @param   string  $content  Override the output of the renderer
 36      *
 37      * @return  string  The output of the script
 38      *
 39      * @see     JDocumentRenderer::render()
 40      * @since   3.5
 41      */
 42     public function render($name = '', $params = null, $content = null)
 43     {
 44         $app = JFactory::getApplication();
 45 
 46         // Gets and sets timezone offset from site configuration
 47         $tz  = new DateTimeZone($app->get('offset'));
 48         $now = JFactory::getDate();
 49         $now->setTimeZone($tz);
 50 
 51         $data = $this->_doc;
 52 
 53         $url = JUri::getInstance()->toString(array('scheme', 'user', 'pass', 'host', 'port'));
 54         $syndicationURL = JRoute::_('&format=feed&type=rss');
 55 
 56         $title = $data->getTitle();
 57 
 58         if ($app->get('sitename_pagetitles', 0) == 1)
 59         {
 60             $title = JText::sprintf('JPAGETITLE', $app->get('sitename'), $data->getTitle());
 61         }
 62         elseif ($app->get('sitename_pagetitles', 0) == 2)
 63         {
 64             $title = JText::sprintf('JPAGETITLE', $data->getTitle(), $app->get('sitename'));
 65         }
 66 
 67         $feed_title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8');
 68 
 69         $datalink = $data->getLink();
 70 
 71         if (preg_match('/[\x80-\xFF]/', $datalink))
 72         {
 73             $datalink = implode('/', array_map('rawurlencode', explode('/', $datalink)));
 74         }
 75 
 76         $feed = "<rss version=\"2.0\" xmlns:atom=\"http://www.w3.org/2005/Atom\">\n";
 77         $feed .= "  <channel>\n";
 78         $feed .= "      <title>" . $feed_title . "</title>\n";
 79         $feed .= "      <description><![CDATA[" . $data->getDescription() . "]]></description>\n";
 80         $feed .= "      <link>" . str_replace(' ', '%20', $url . $datalink) . "</link>\n";
 81         $feed .= "      <lastBuildDate>" . htmlspecialchars($now->toRFC822(true), ENT_COMPAT, 'UTF-8') . "</lastBuildDate>\n";
 82         $feed .= "      <generator>" . $data->getGenerator() . "</generator>\n";
 83         $feed .= "      <atom:link rel=\"self\" type=\"application/rss+xml\" href=\"" . str_replace(' ', '%20', $url . $syndicationURL) . "\"/>\n";
 84 
 85         if ($data->image != null)
 86         {
 87             $feed .= "      <image>\n";
 88             $feed .= "          <url>" . $data->image->url . "</url>\n";
 89             $feed .= "          <title>" . htmlspecialchars($data->image->title, ENT_COMPAT, 'UTF-8') . "</title>\n";
 90             $feed .= "          <link>" . str_replace(' ', '%20', $data->image->link) . "</link>\n";
 91 
 92             if ($data->image->width != '')
 93             {
 94                 $feed .= "          <width>" . $data->image->width . "</width>\n";
 95             }
 96 
 97             if ($data->image->height != '')
 98             {
 99                 $feed .= "          <height>" . $data->image->height . "</height>\n";
100             }
101 
102             if ($data->image->description != '')
103             {
104                 $feed .= "          <description><![CDATA[" . $data->image->description . "]]></description>\n";
105             }
106 
107             $feed .= "      </image>\n";
108         }
109 
110         if ($data->getLanguage() !== '')
111         {
112             $feed .= "      <language>" . $data->getLanguage() . "</language>\n";
113         }
114 
115         if ($data->copyright != '')
116         {
117             $feed .= "      <copyright>" . htmlspecialchars($data->copyright, ENT_COMPAT, 'UTF-8') . "</copyright>\n";
118         }
119 
120         if ($data->editorEmail != '')
121         {
122             $feed .= "      <managingEditor>" . htmlspecialchars($data->editorEmail, ENT_COMPAT, 'UTF-8') . ' ('
123                 . htmlspecialchars($data->editor, ENT_COMPAT, 'UTF-8') . ")</managingEditor>\n";
124         }
125 
126         if ($data->webmaster != '')
127         {
128             $feed .= "      <webMaster>" . htmlspecialchars($data->webmaster, ENT_COMPAT, 'UTF-8') . "</webMaster>\n";
129         }
130 
131         if ($data->pubDate != '')
132         {
133             $pubDate = JFactory::getDate($data->pubDate);
134             $pubDate->setTimeZone($tz);
135             $feed .= "      <pubDate>" . htmlspecialchars($pubDate->toRFC822(true), ENT_COMPAT, 'UTF-8') . "</pubDate>\n";
136         }
137 
138         if (!empty($data->category))
139         {
140             if (is_array($data->category))
141             {
142                 foreach ($data->category as $cat)
143                 {
144                     $feed .= "      <category>" . htmlspecialchars($cat, ENT_COMPAT, 'UTF-8') . "</category>\n";
145                 }
146             }
147             else
148             {
149                 $feed .= "      <category>" . htmlspecialchars($data->category, ENT_COMPAT, 'UTF-8') . "</category>\n";
150             }
151         }
152 
153         if ($data->docs != '')
154         {
155             $feed .= "      <docs>" . htmlspecialchars($data->docs, ENT_COMPAT, 'UTF-8') . "</docs>\n";
156         }
157 
158         if ($data->ttl != '')
159         {
160             $feed .= "      <ttl>" . htmlspecialchars($data->ttl, ENT_COMPAT, 'UTF-8') . "</ttl>\n";
161         }
162 
163         if ($data->rating != '')
164         {
165             $feed .= "      <rating>" . htmlspecialchars($data->rating, ENT_COMPAT, 'UTF-8') . "</rating>\n";
166         }
167 
168         if ($data->skipHours != '')
169         {
170             $feed .= "      <skipHours>" . htmlspecialchars($data->skipHours, ENT_COMPAT, 'UTF-8') . "</skipHours>\n";
171         }
172 
173         if ($data->skipDays != '')
174         {
175             $feed .= "      <skipDays>" . htmlspecialchars($data->skipDays, ENT_COMPAT, 'UTF-8') . "</skipDays>\n";
176         }
177 
178         for ($i = 0, $count = count($data->items); $i < $count; $i++)
179         {
180             $itemlink = $data->items[$i]->link;
181 
182             if (preg_match('/[\x80-\xFF]/', $itemlink))
183             {
184                 $itemlink = implode('/', array_map('rawurlencode', explode('/', $itemlink)));
185             }
186 
187             if ((strpos($itemlink, 'http://') === false) && (strpos($itemlink, 'https://') === false))
188             {
189                 $itemlink = str_replace(' ', '%20', $url . $itemlink);
190             }
191 
192             $feed .= "      <item>\n";
193             $feed .= "          <title>" . htmlspecialchars(strip_tags($data->items[$i]->title), ENT_COMPAT, 'UTF-8') . "</title>\n";
194             $feed .= "          <link>" . str_replace(' ', '%20', $itemlink) . "</link>\n";
195 
196             if (empty($data->items[$i]->guid))
197             {
198                 $feed .= "          <guid isPermaLink=\"true\">" . str_replace(' ', '%20', $itemlink) . "</guid>\n";
199             }
200             else
201             {
202                 $feed .= "          <guid isPermaLink=\"false\">" . htmlspecialchars($data->items[$i]->guid, ENT_COMPAT, 'UTF-8') . "</guid>\n";
203             }
204 
205             $feed .= "          <description><![CDATA[" . $this->_relToAbs($data->items[$i]->description) . "]]></description>\n";
206 
207             if ($data->items[$i]->authorEmail != '')
208             {
209                 $feed .= '          <author>'
210                     . htmlspecialchars($data->items[$i]->authorEmail . ' (' . $data->items[$i]->author . ')', ENT_COMPAT, 'UTF-8') . "</author>\n";
211             }
212 
213             /*
214              * @todo: On hold
215              * if ($data->items[$i]->source!='')
216              * {
217              *   $data.= "          <source>" . htmlspecialchars($data->items[$i]->source, ENT_COMPAT, 'UTF-8') . "</source>\n";
218              * }
219              */
220 
221             if (empty($data->items[$i]->category) === false)
222             {
223                 if (is_array($data->items[$i]->category))
224                 {
225                     foreach ($data->items[$i]->category as $cat)
226                     {
227                         $feed .= "          <category>" . htmlspecialchars($cat, ENT_COMPAT, 'UTF-8') . "</category>\n";
228                     }
229                 }
230                 else
231                 {
232                     $feed .= "          <category>" . htmlspecialchars($data->items[$i]->category, ENT_COMPAT, 'UTF-8') . "</category>\n";
233                 }
234             }
235 
236             if ($data->items[$i]->comments != '')
237             {
238                 $feed .= "          <comments>" . htmlspecialchars($data->items[$i]->comments, ENT_COMPAT, 'UTF-8') . "</comments>\n";
239             }
240 
241             if ($data->items[$i]->date != '')
242             {
243                 $itemDate = JFactory::getDate($data->items[$i]->date);
244                 $itemDate->setTimeZone($tz);
245                 $feed .= "          <pubDate>" . htmlspecialchars($itemDate->toRFC822(true), ENT_COMPAT, 'UTF-8') . "</pubDate>\n";
246             }
247 
248             if ($data->items[$i]->enclosure != null)
249             {
250                 $feed .= "          <enclosure url=\"";
251                 $feed .= $data->items[$i]->enclosure->url;
252                 $feed .= "\" length=\"";
253                 $feed .= $data->items[$i]->enclosure->length;
254                 $feed .= "\" type=\"";
255                 $feed .= $data->items[$i]->enclosure->type;
256                 $feed .= "\"/>\n";
257             }
258 
259             $feed .= "      </item>\n";
260         }
261 
262         $feed .= "  </channel>\n";
263         $feed .= "</rss>\n";
264 
265         return $feed;
266     }
267 }
268 

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