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<?php
namespace PicoFeed\Syndication;
use DOMAttr;
use DOMElement;
/**
* Rss20 Feed Builder
*
* @package PicoFeed\Syndication
* @author Frederic Guillot
*/
class Rss20FeedBuilder extends FeedBuilder
{
/**
* @var DOMElement
*/
protected $rssElement;
/**
* @var Rss20Helper
*/
protected $helper;
/**
* @var DOMElement
*/
protected $channelElement;
/**
* Build feed
*
* @access public
* @param string $filename
* @return string
*/
public function build($filename = '')
{
$this->helper = new Rss20Helper($this->getDocument());
$this->rssElement = $this->getDocument()->createElement('rss');
$this->rssElement->setAttribute('version', '2.0');
$this->rssElement->setAttributeNodeNS(new DomAttr('xmlns:content', 'http://purl.org/rss/1.0/modules/content/'));
$this->rssElement->setAttributeNodeNS(new DomAttr('xmlns:atom', 'http://www.w3.org/2005/Atom'));
$this->channelElement = $this->getDocument()->createElement('channel');
$this->helper
->buildNode($this->channelElement, 'generator', 'PicoFeed (https://github.com/miniflux/picoFeed)')
->buildTitle($this->channelElement, $this->feedTitle)
->buildNode($this->channelElement, 'description', $this->feedTitle)
->buildDate($this->channelElement, $this->feedDate)
->buildAuthor($this->channelElement, 'webMaster', $this->authorName, $this->authorEmail)
->buildLink($this->channelElement, $this->siteUrl)
;
$link = $this->getDocument()->createElement('atom:link');
$link->setAttribute('href', $this->feedUrl);
$link->setAttribute('rel', 'self');
$link->setAttribute('type', 'application/rss+xml');
$this->channelElement->appendChild($link);
foreach ($this->items as $item) {
$this->channelElement->appendChild($item->build());
}
$this->rssElement->appendChild($this->channelElement);
$this->getDocument()->appendChild($this->rssElement);
if ($filename !== '') {
$this->getDocument()->save($filename);
}
return $this->getDocument()->saveXML();
}
}
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