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rss-bridge/formats/MrssFormat.php
2016-08-09 17:05:29 +02:00

89 lines
3.3 KiB
PHP

<?php
/**
* Mrss
* Documentation Source http://www.rssboard.org/media-rss
*
* @name Media RSS
*/
class MrssFormat extends FormatAbstract{
public function stringify(){
/* Datas preparation */
$https = ( isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' ? 's' : '' );
$httpHost = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '';
$httpInfo = isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '';
$serverRequestUri = $this->xml_encode($_SERVER['REQUEST_URI']);
$extraInfos = $this->getExtraInfos();
$title = $this->xml_encode($extraInfos['name']);
$uri = $this->xml_encode(!empty($extraInfos['uri']) ? $extraInfos['uri'] : 'https://github.com/sebsauvage/rss-bridge');
$items = '';
foreach($this->getDatas() as $data){
$itemTitle = strip_tags(is_null($data->title) ? '' : $this->xml_encode($data->title));
$itemUri = is_null($data->uri) ? '' : $this->xml_encode($data->uri);
$itemAuthor = is_null($data->author) ? $title : $this->xml_encode($data->author);
$itemTimestamp = is_null($data->timestamp) ? '' : $this->xml_encode(date(DATE_RFC2822, $data->timestamp));
// We prevent content from closing the CDATA too early.
$itemContent = is_null($data->content) ? '' : $this->xml_encode($this->sanitizeHtml($data->content));
$items .= <<<EOD
<item>
<title>{$itemTitle}</title>
<link>{$itemUri}</link>
<guid isPermaLink="true">{$itemUri}</guid>
<pubDate>{$itemTimestamp}</pubDate>
<description>{$itemContent}</description>
<author>{$itemAuthor}</author>
</item>
EOD;
}
/*
TODO :
- Security: Disable Javascript ?
- <updated> : Define new extra info ?
- <content type="html"> : RFC look with xhtml, keep this in spite of ?
*/
/* Data are prepared, now let's begin the "MAGIE !!!" */
$toReturn = '<?xml version="1.0" encoding="UTF-8"?>';
$toReturn .= <<<EOD
<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:media="http://search.yahoo.com/mrss/" xmlns:atom="http://www.w3.org/2005/Atom">
<channel>
<title>{$title}</title>
<link>http{$https}://{$httpHost}{$httpInfo}/</link>
<description>{$title}</description>
<atom:link rel="alternate" type="text/html" href="{$uri}" />
<atom:link rel="self" href="http{$https}://{$httpHost}{$serverRequestUri}" />
{$items}
</channel>
</rss>
EOD;
// Remove invalid non-UTF8 characters
// We cannot use iconv because of a bug in some versions of iconv.
// See http://www.php.net/manual/fr/function.iconv.php#108643
//$toReturn = iconv("UTF-8", "UTF-8//IGNORE", $toReturn);
// So we use mb_convert_encoding instead:
ini_set('mbstring.substitute_character', 'none');
$toReturn= mb_convert_encoding($toReturn, 'UTF-8', 'UTF-8');
return $toReturn;
}
public function display(){
$this
->setContentType('application/rss+xml; charset=UTF-8') // We force UTF-8 in RSS output.
->callContentType();
return parent::display();
}
private function xml_encode($text) {
return htmlspecialchars($text, ENT_XML1);
}
}