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0,0 → 1,166 |
<?php |
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ |
|
/** |
* Class representing entries in an RSS2 feed. |
* |
* PHP versions 5 |
* |
* LICENSE: This source file is subject to version 3.0 of the PHP license |
* that is available through the world-wide-web at the following URI: |
* http://www.php.net/license/3_0.txt. If you did not receive a copy of |
* the PHP License and are unable to obtain it through the web, please |
* send a note to license@php.net so we can mail you a copy immediately. |
* |
* @category XML |
* @package XML_Feed_Parser |
* @author James Stewart <james@jystewart.net> |
* @copyright 2005 James Stewart <james@jystewart.net> |
* @license http://www.gnu.org/copyleft/lesser.html GNU LGPL 2.1 |
* @version CVS: $Id: RSS2Element.php 304308 2010-10-11 12:05:50Z clockwerx $ |
* @link http://pear.php.net/package/XML_Feed_Parser/ |
*/ |
|
/** |
* This class provides support for RSS 2.0 entries. It will usually be |
* called by XML_Feed_Parser_RSS2 with which it shares many methods. |
* |
* @author James Stewart <james@jystewart.net> |
* @version Release: @package_version@ |
* @package XML_Feed_Parser |
*/ |
class XmlFeedParserRss2Element extends XmlFeedParserRss2 { |
/** |
* This will be a reference to the parent object for when we want |
* to use a 'fallback' rule |
* @var XML_Feed_Parser_RSS2 |
*/ |
protected $parent; |
|
/** |
* Our specific element map |
* @var array |
*/ |
protected $map = array( |
'title' => array('Text'), |
'guid' => array('Guid'), |
'description' => array('Text'), |
'author' => array('Text'), |
'comments' => array('Text'), |
'enclosure' => array('Enclosure'), |
'pubDate' => array('Date'), |
'source' => array('Source'), |
'link' => array('Text'), |
'content' => array('Content')); |
|
/** |
* Here we map some elements to their atom equivalents. This is going to be |
* quite tricky to pull off effectively (and some users' methods may vary) |
* but is worth trying. The key is the atom version, the value is RSS2. |
* @var array |
*/ |
protected $compatMap = array( |
'id' => array('guid'), |
'updated' => array('lastBuildDate'), |
'published' => array('pubdate'), |
'guidislink' => array('guid', 'ispermalink'), |
'summary' => array('description')); |
|
/** |
* Store useful information for later. |
* |
* @param DOMElement $element - this item as a DOM element |
* @param XML_Feed_Parser_RSS2 $parent - the feed of which this is a member |
*/ |
function __construct(DOMElement $element, $parent, $xmlBase = '') { |
$this->model = $element; |
$this->parent = $parent; |
} |
|
/** |
* Get the value of the guid element, if specified |
* |
* guid is the closest RSS2 has to atom's ID. It is usually but not always a |
* URI. The one attribute that RSS2 can posess is 'ispermalink' which specifies |
* whether the guid is itself dereferencable. Use of guid is not obligatory, |
* but is advisable. To get the guid you would call $item->id() (for atom |
* compatibility) or $item->guid(). To check if this guid is a permalink call |
* $item->guid("ispermalink"). |
* |
* @param string $method - the method name being called |
* @param array $params - parameters required |
* @return string the guid or value of ispermalink |
*/ |
protected function getGuid($method, $params) { |
$attribute = (isset($params[0]) and $params[0] == 'ispermalink') ? |
true : false; |
$tag = $this->model->getElementsByTagName('guid'); |
if ($tag->length > 0) { |
if ($attribute) { |
if ($tag->hasAttribute("ispermalink")) { |
return $tag->getAttribute("ispermalink"); |
} |
} |
return $tag->item(0)->nodeValue; |
} |
return false; |
} |
|
/** |
* Access details of file enclosures |
* |
* The RSS2 spec is ambiguous as to whether an enclosure element must be |
* unique in a given entry. For now we will assume it needn't, and allow |
* for an offset. |
* |
* @param string $method - the method being called |
* @param array $parameters - we expect the first of these to be our offset |
* @return array|false |
*/ |
protected function getEnclosure($method, $parameters) { |
$encs = $this->model->getElementsByTagName('enclosure'); |
$offset = isset($parameters[0]) ? $parameters[0] : 0; |
if ($encs->length > $offset) { |
try { |
if (! $encs->item($offset)->hasAttribute('url')) { |
return false; |
} |
$attrs = $encs->item($offset)->attributes; |
return array( |
'url' => $attrs->getNamedItem('url')->value, |
'length' => $attrs->getNamedItem('length')->value, |
'type' => $attrs->getNamedItem('type')->value); |
} catch (Exception $e) { |
return false; |
} |
} |
return false; |
} |
|
/** |
* Get the entry source if specified |
* |
* source is an optional sub-element of item. Like atom:source it tells |
* us about where the entry came from (eg. if it's been copied from another |
* feed). It is not a rich source of metadata in the same way as atom:source |
* and while it would be good to maintain compatibility by returning an |
* XML_Feed_Parser_RSS2 element, it makes a lot more sense to return an array. |
* |
* @return array|false |
*/ |
protected function getSource() { |
$get = $this->model->getElementsByTagName('source'); |
if ($get->length) { |
$source = $get->item(0); |
$array = array( |
'content' => $source->nodeValue); |
foreach ($source->attributes as $attribute) { |
$array[$attribute->name] = $attribute->value; |
} |
return $array; |
} |
return false; |
} |
} |
|
?> |
Property changes: |
Added: svn:executable |
+* |
\ No newline at end of property |