/library/Zend/Feed/Reader/Extension/Podcast/Feed.php

  1<?php
  2/**
  3 * Zend Framework
  4 *
  5 * LICENSE
  6 *
  7 * This source file is subject to the new BSD license that is bundled
  8 * with this package in the file LICENSE.txt.
  9 * It is also available through the world-wide-web at this URL:
 10 * http://framework.zend.com/license/new-bsd
 11 * If you did not receive a copy of the license and are unable to
 12 * obtain it through the world-wide-web, please send an email
 13 * to license@zend.com so we can send you a copy immediately.
 14 *
 15 * @category   Zend
 16 * @package    Zend_Feed_Reader
 17 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 18 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 19 * @version    $Id: Feed.php 24594 2012-01-05 21:27:01Z matthew $
 20 */
 21
 22/**
 23 * @see Zend_Feed_Reader_Extension_FeedAbstract
 24 */
 25require_once 'Zend/Feed/Reader/Extension/FeedAbstract.php';
 26
 27/**
 28 * @category   Zend
 29 * @package    Zend_Feed_Reader
 30 * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
 31 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 32 */
 33class Zend_Feed_Reader_Extension_Podcast_Feed extends Zend_Feed_Reader_Extension_FeedAbstract
 34{
 35    /**
 36     * Get the entry author
 37     *
 38     * @return string
 39     */
 40    public function getCastAuthor()
 41    {
 42        if (isset($this->_data['author'])) {
 43            return $this->_data['author'];
 44        }
 45
 46        $author = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:author)');
 47
 48        if (!$author) {
 49            $author = null;
 50        }
 51
 52        $this->_data['author'] = $author;
 53
 54        return $this->_data['author'];
 55    }
 56
 57    /**
 58     * Get the entry block
 59     *
 60     * @return string
 61     */
 62    public function getBlock()
 63    {
 64        if (isset($this->_data['block'])) {
 65            return $this->_data['block'];
 66        }
 67
 68        $block = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:block)');
 69
 70        if (!$block) {
 71            $block = null;
 72        }
 73
 74        $this->_data['block'] = $block;
 75
 76        return $this->_data['block'];
 77    }
 78
 79    /**
 80     * Get the entry category
 81     *
 82     * @return string
 83     */
 84    public function getCategories()
 85    {
 86        if (isset($this->_data['categories'])) {
 87            return $this->_data['categories'];
 88        }
 89
 90        $categoryList = $this->_xpath->query($this->getXpathPrefix() . '/itunes:category');
 91
 92        $categories = array();
 93
 94        if ($categoryList->length > 0) {
 95            foreach ($categoryList as $node) {
 96                $children = null;
 97
 98                if ($node->childNodes->length > 0) {
 99                    $children = array();
100
101                    foreach ($node->childNodes as $childNode) {
102                        if (!($childNode instanceof DOMText)) {
103                            $children[$childNode->getAttribute('text')] = null;
104                        }
105                    }
106                }
107
108                $categories[$node->getAttribute('text')] = $children;
109            }
110        }
111
112
113        if (!$categories) {
114            $categories = null;
115        }
116
117        $this->_data['categories'] = $categories;
118
119        return $this->_data['categories'];
120    }
121
122    /**
123     * Get the entry explicit
124     *
125     * @return string
126     */
127    public function getExplicit()
128    {
129        if (isset($this->_data['explicit'])) {
130            return $this->_data['explicit'];
131        }
132
133        $explicit = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:explicit)');
134
135        if (!$explicit) {
136            $explicit = null;
137        }
138
139        $this->_data['explicit'] = $explicit;
140
141        return $this->_data['explicit'];
142    }
143
144    /**
145     * Get the entry image
146     *
147     * @return string
148     */
149    public function getImage()
150    {
151        if (isset($this->_data['image'])) {
152            return $this->_data['image'];
153        }
154
155        $image = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:image/@href)');
156
157        if (!$image) {
158            $image = null;
159        }
160
161        $this->_data['image'] = $image;
162
163        return $this->_data['image'];
164    }
165
166    /**
167     * Get the entry keywords
168     *
169     * @return string
170     */
171    public function getKeywords()
172    {
173        if (isset($this->_data['keywords'])) {
174            return $this->_data['keywords'];
175        }
176
177        $keywords = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:keywords)');
178
179        if (!$keywords) {
180            $keywords = null;
181        }
182
183        $this->_data['keywords'] = $keywords;
184
185        return $this->_data['keywords'];
186    }
187
188    /**
189     * Get the entry's new feed url
190     *
191     * @return string
192     */
193    public function getNewFeedUrl()
194    {
195        if (isset($this->_data['new-feed-url'])) {
196            return $this->_data['new-feed-url'];
197        }
198
199        $newFeedUrl = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:new-feed-url)');
200
201        if (!$newFeedUrl) {
202            $newFeedUrl = null;
203        }
204
205        $this->_data['new-feed-url'] = $newFeedUrl;
206
207        return $this->_data['new-feed-url'];
208    }
209
210    /**
211     * Get the entry owner
212     *
213     * @return string
214     */
215    public function getOwner()
216    {
217        if (isset($this->_data['owner'])) {
218            return $this->_data['owner'];
219        }
220
221        $owner = null;
222
223        $email = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:owner/itunes:email)');
224        $name  = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:owner/itunes:name)');
225
226        if (!empty($email)) {
227            $owner = $email . (empty($name) ? '' : ' (' . $name . ')');
228        } else if (!empty($name)) {
229            $owner = $name;
230        }
231
232        if (!$owner) {
233            $owner = null;
234        }
235
236        $this->_data['owner'] = $owner;
237
238        return $this->_data['owner'];
239    }
240
241    /**
242     * Get the entry subtitle
243     *
244     * @return string
245     */
246    public function getSubtitle()
247    {
248        if (isset($this->_data['subtitle'])) {
249            return $this->_data['subtitle'];
250        }
251
252        $subtitle = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:subtitle)');
253
254        if (!$subtitle) {
255            $subtitle = null;
256        }
257
258        $this->_data['subtitle'] = $subtitle;
259
260        return $this->_data['subtitle'];
261    }
262
263    /**
264     * Get the entry summary
265     *
266     * @return string
267     */
268    public function getSummary()
269    {
270        if (isset($this->_data['summary'])) {
271            return $this->_data['summary'];
272        }
273
274        $summary = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:summary)');
275
276        if (!$summary) {
277            $summary = null;
278        }
279
280        $this->_data['summary'] = $summary;
281
282        return $this->_data['summary'];
283    }
284
285    /**
286     * Register iTunes namespace
287     *
288     */
289    protected function _registerNamespaces()
290    {
291        $this->_xpath->registerNamespace('itunes', 'http://www.itunes.com/dtds/podcast-1.0.dtd');
292    }
293}