miniflux-legacy/vendor/PicoFeed/Writers/Rss20.php

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<?php
namespace PicoFeed\Writers;
require_once __DIR__.'/../Writer.php';
class Rss20 extends \PicoFeed\Writer
{
private $required_feed_properties = array(
'title',
'site_url',
);
private $required_item_properties = array(
'title',
'url',
);
public function execute($filename = '')
{
$this->checkRequiredProperties($this->required_feed_properties, $this);
$this->dom = new \DomDocument('1.0', 'UTF-8');
$this->dom->formatOutput = true;
// <rss/>
$rss = $this->dom->createElement('rss');
$rss->setAttribute('version', '2.0');
$rss->setAttributeNodeNS(new \DomAttr('xmlns:content', 'http://purl.org/rss/1.0/modules/content/'));
$channel = $this->dom->createElement('channel');
// <generator/>
$generator = $this->dom->createElement('generator', 'PicoFeed (https://github.com/fguillot/picoFeed)');
$channel->appendChild($generator);
// <title/>
$channel->appendChild($this->dom->createElement('title', $this->title));
// <description/>
$channel->appendChild($this->dom->createElement('description', isset($this->description) ? $this->description : $this->title));
// <pubDate/>
$this->addPubDate($channel, isset($this->updated) ? $this->updated : '');
// <link/>
$channel->appendChild($this->dom->createElement('link', $this->site_url));
// <webMaster/>
if (isset($this->author)) $this->addAuthor($channel, 'webMaster', $this->author);
// <item/>
foreach ($this->items as $item) {
$this->checkRequiredProperties($this->required_item_properties, $item);
$entry = $this->dom->createElement('entry');
// <title/>
$entry->appendChild($this->dom->createElement('title', $item['title']));
// <link/>
$entry->appendChild($this->dom->createElement('link', $item['url']));
// <guid/>
$guid = $this->dom->createElement('guid', $item['url']);
$guid->setAttribute('isPermaLink', 'true');
$entry->appendChild($guid);
// <pubDate/>
$this->addPubDate($entry, isset($item['updated']) ? $item['updated'] : '');
// <description/>
if (isset($item['summary'])) {
$entry->appendChild($this->dom->createElement('description', $item['summary']));
}
// <content/>
if (isset($item['content'])) {
$content = $this->dom->createElement('content:encoded');
$content->appendChild($this->dom->createCDATASection($item['content']));
$entry->appendChild($content);
}
// <author/>
if (isset($item['author'])) $this->addAuthor($entry, 'author', $item['author']);
$channel->appendChild($entry);
}
$rss->appendChild($channel);
$this->dom->appendChild($rss);
if ($filename) {
$this->dom->save($filename);
}
else {
return $this->dom->saveXML();
}
}
public function addPubDate($xml, $value = '')
{
$xml->appendChild($this->dom->createElement(
'pubDate',
date(DATE_RFC822, $value ?: time())
));
}
public function addAuthor($xml, $tag, array $values)
{
$value = '';
if (isset($values['email'])) $value .= $values['email'];
if ($value && isset($values['name'])) $value .= ' ('.$values['name'].')';
if ($value) {
$author = $this->dom->createElement($tag, $value);
$xml->appendChild($author);
}
}
}