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<?php
/**
* ownCloud - News app
*
* @author Alessandro Cosentino
* Copyright (c) 2012 - Alessandro Cosentino <cosenal@gmail.com>
*
* This file is licensed under the Affero General Public License version 3 or later.
* See the COPYING-README file
*
*/
namespace OCA\News;
/**
* Exports the OPML
*/
class OPMLExporter {
private $api;
private $trans;
public function __construct($api){
$this->api = $api;
$this->trans = $api->getTrans();
}
/**
* Generates the OPML for the active user
* @return the OPML as string
*/
public function buildOPML($feeds){
$dom = new \DomDocument('1.0', 'UTF-8');
$dom->formatOutput = true;
$opml_el = $dom->createElement('opml');
$opml_el->setAttribute('version', '2.0');
$head_el = $dom->createElement('head');
$title = $this->api->getUserId() . ' ' .
$this->trans->t('subscriptions in ownCloud - News');
$title_el = $dom->createElement('title', $title);
$head_el->appendChild( $title_el );
$opml_el->appendChild( $head_el );
$body_el = $dom->createElement('body');
$this->feedsToXML($feeds, $body_el, $dom);
$opml_el->appendChild( $body_el );
$dom->appendChild( $opml_el );
return $dom->saveXML();
}
/**
* Creates the OPML content recursively
*/
protected function feedsToXML($data, $xml_el, $dom) {
foreach($data as $collection) {
$outline_el = $dom->createElement('outline');
if ($collection instanceOf Folder) {
$outline_el->setAttribute('title', $collection->getName());
$outline_el->setAttribute('text', $collection->getName());
$this->feedsToXML($collection->getChildren(), $outline_el, $dom);
}
elseif ($collection instanceOf Feed) {
$outline_el->setAttribute('title', $collection->getTitle());
$outline_el->setAttribute('text', $collection->getTitle());
$outline_el->setAttribute('type', 'rss');
$outline_el->setAttribute('xmlUrl', $collection->getUrl());
}
$xml_el->appendChild( $outline_el );
}
}
}
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