diff -r 5b37998e522e -r 162c1de6545a web/lib/Zend/Feed/Writer/Extension/ITunes/Renderer/Entry.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Feed/Writer/Extension/ITunes/Renderer/Entry.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,216 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Feed_Writer
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Entry.php 22662 2010-07-24 17:37:36Z mabe $
+ */
+ 
+/**
+ * @see Zend_Feed_Writer_Extension_RendererAbstract
+ */
+require_once 'Zend/Feed/Writer/Extension/RendererAbstract.php';
+ 
+/**
+ * @category   Zend
+ * @package    Zend_Feed_Writer
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Feed_Writer_Extension_ITunes_Renderer_Entry
+    extends Zend_Feed_Writer_Extension_RendererAbstract
+{
+    /**
+     * Set to TRUE if a rendering method actually renders something. This
+     * is used to prevent premature appending of a XML namespace declaration
+     * until an element which requires it is actually appended.
+     *
+     * @var bool
+     */
+    protected $_called = false;
+    
+    /**
+     * Render entry
+     * 
+     * @return void
+     */
+    public function render()
+    {
+        $this->_setAuthors($this->_dom, $this->_base);
+        $this->_setBlock($this->_dom, $this->_base);
+        $this->_setDuration($this->_dom, $this->_base);
+        $this->_setExplicit($this->_dom, $this->_base);
+        $this->_setKeywords($this->_dom, $this->_base);
+        $this->_setSubtitle($this->_dom, $this->_base);
+        $this->_setSummary($this->_dom, $this->_base);
+        if ($this->_called) {
+            $this->_appendNamespaces();
+        }
+    }
+    
+    /**
+     * Append namespaces to entry root
+     * 
+     * @return void
+     */
+    protected function _appendNamespaces()
+    {
+        $this->getRootElement()->setAttribute('xmlns:itunes',
+            'http://www.itunes.com/dtds/podcast-1.0.dtd');  
+    }
+
+    /**
+     * Set entry authors
+     * 
+     * @param  DOMDocument $dom 
+     * @param  DOMElement $root 
+     * @return void
+     */
+    protected function _setAuthors(DOMDocument $dom, DOMElement $root)
+    {
+        $authors = $this->getDataContainer()->getItunesAuthors();
+        if (!$authors || empty($authors)) {
+            return;
+        }
+        foreach ($authors as $author) {
+            $el = $dom->createElement('itunes:author');
+            $text = $dom->createTextNode($author);
+            $el->appendChild($text);
+            $root->appendChild($el);
+            $this->_called = true;
+        }
+    }
+    
+    /**
+     * Set itunes block
+     * 
+     * @param  DOMDocument $dom 
+     * @param  DOMElement $root 
+     * @return void
+     */
+    protected function _setBlock(DOMDocument $dom, DOMElement $root)
+    {
+        $block = $this->getDataContainer()->getItunesBlock();
+        if ($block === null) {
+            return;
+        }
+        $el = $dom->createElement('itunes:block');
+        $text = $dom->createTextNode($block);
+        $el->appendChild($text);
+        $root->appendChild($el);
+        $this->_called = true;
+    }
+    
+    /**
+     * Set entry duration
+     * 
+     * @param  DOMDocument $dom 
+     * @param  DOMElement $root 
+     * @return void
+     */
+    protected function _setDuration(DOMDocument $dom, DOMElement $root)
+    {
+        $duration = $this->getDataContainer()->getItunesDuration();
+        if (!$duration) {
+            return;
+        }
+        $el = $dom->createElement('itunes:duration');
+        $text = $dom->createTextNode($duration);
+        $el->appendChild($text);
+        $root->appendChild($el);
+        $this->_called = true;
+    }
+    
+    /**
+     * Set explicit flag
+     * 
+     * @param  DOMDocument $dom 
+     * @param  DOMElement $root 
+     * @return void
+     */
+    protected function _setExplicit(DOMDocument $dom, DOMElement $root)
+    {
+        $explicit = $this->getDataContainer()->getItunesExplicit();
+        if ($explicit === null) {
+            return;
+        }
+        $el = $dom->createElement('itunes:explicit');
+        $text = $dom->createTextNode($explicit);
+        $el->appendChild($text);
+        $root->appendChild($el);
+        $this->_called = true;
+    }
+    
+    /**
+     * Set entry keywords
+     * 
+     * @param  DOMDocument $dom 
+     * @param  DOMElement $root 
+     * @return void
+     */
+    protected function _setKeywords(DOMDocument $dom, DOMElement $root)
+    {
+        $keywords = $this->getDataContainer()->getItunesKeywords();
+        if (!$keywords || empty($keywords)) {
+            return;
+        }
+        $el = $dom->createElement('itunes:keywords');
+        $text = $dom->createTextNode(implode(',', $keywords));
+        $el->appendChild($text);
+        $root->appendChild($el);
+        $this->_called = true;
+    }
+    
+    /**
+     * Set entry subtitle
+     * 
+     * @param  DOMDocument $dom 
+     * @param  DOMElement $root 
+     * @return void
+     */
+    protected function _setSubtitle(DOMDocument $dom, DOMElement $root)
+    {
+        $subtitle = $this->getDataContainer()->getItunesSubtitle();
+        if (!$subtitle) {
+            return;
+        }
+        $el = $dom->createElement('itunes:subtitle');
+        $text = $dom->createTextNode($subtitle);
+        $el->appendChild($text);
+        $root->appendChild($el);
+        $this->_called = true;
+    }
+    
+    /**
+     * Set entry summary
+     * 
+     * @param  DOMDocument $dom 
+     * @param  DOMElement $root 
+     * @return void
+     */
+    protected function _setSummary(DOMDocument $dom, DOMElement $root)
+    {
+        $summary = $this->getDataContainer()->getItunesSummary();
+        if (!$summary) {
+            return;
+        }
+        $el = $dom->createElement('itunes:summary');
+        $text = $dom->createTextNode($summary);
+        $el->appendChild($text);
+        $root->appendChild($el);
+        $this->_called = true;
+    }
+}