120 lines
3.7 KiB
PHP
120 lines
3.7 KiB
PHP
<?php
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/**
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* Mrss
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* Documentation Source http://www.rssboard.org/media-rss
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*/
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class MrssFormat extends FormatAbstract {
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public function stringify(){
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$https = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' ? 's' : '';
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$httpHost = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '';
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$httpInfo = isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '';
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$serverRequestUri = isset($_SERVER['REQUEST_URI']) ? $this->xml_encode($_SERVER['REQUEST_URI']) : '';
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$extraInfos = $this->getExtraInfos();
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$title = $this->xml_encode($extraInfos['name']);
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if(!empty($extraInfos['uri'])) {
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$uri = $this->xml_encode($extraInfos['uri']);
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} else {
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$uri = REPOSITORY;
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}
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$uriparts = parse_url($uri);
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$icon = $this->xml_encode($uriparts['scheme'] . '://' . $uriparts['host'] . '/favicon.ico');
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$items = '';
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foreach($this->getItems() as $item) {
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$itemAuthor = isset($item['author']) ? $this->xml_encode($item['author']) : '';
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$itemTitle = strip_tags(isset($item['title']) ? $this->xml_encode($item['title']) : '');
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$itemUri = isset($item['uri']) ? $this->xml_encode($item['uri']) : '';
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$itemTimestamp = isset($item['timestamp']) ? $this->xml_encode(date(DATE_RFC2822, $item['timestamp'])) : '';
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$itemContent = isset($item['content']) ? $this->xml_encode($this->sanitizeHtml($item['content'])) : '';
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$entryEnclosuresWarning = '';
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$entryEnclosures = '';
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if(isset($item['enclosures'])) {
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$entryEnclosures .= '<enclosure url="'
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. $this->xml_encode($item['enclosures'][0])
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. '" type="' . getMimeType($item['enclosures'][0]) . '" />';
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if(count($item['enclosures']) > 1) {
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$entryEnclosures .= PHP_EOL;
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$entryEnclosuresWarning = '<br>Warning:
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Some media files might not be shown to you. Consider using the ATOM format instead!';
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foreach($item['enclosures'] as $enclosure) {
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$entryEnclosures .= '<atom:link rel="enclosure" href="'
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. $enclosure . '" type="' . getMimeType($enclosure) . '" />'
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. PHP_EOL;
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}
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}
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}
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$entryCategories = '';
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if(isset($item['categories'])) {
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foreach($item['categories'] as $category) {
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$entryCategories .= '<category>'
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. $category . '</category>'
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. PHP_EOL;
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}
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}
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$items .= <<<EOD
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<item>
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<title>{$itemTitle}</title>
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<link>{$itemUri}</link>
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<guid isPermaLink="true">{$itemUri}</guid>
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<pubDate>{$itemTimestamp}</pubDate>
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<description>{$itemContent}{$entryEnclosuresWarning}</description>
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<author>{$itemAuthor}</author>
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{$entryEnclosures}
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{$entryCategories}
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</item>
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EOD;
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}
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$charset = $this->getCharset();
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/* xml attributes need to have certain characters escaped to be w3c compliant */
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$imageTitle = htmlspecialchars($title, ENT_COMPAT);
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/* Data are prepared, now let's begin the "MAGIE !!!" */
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$toReturn = <<<EOD
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<?xml version="1.0" encoding="{$charset}"?>
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<rss version="2.0"
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xmlns:dc="http://purl.org/dc/elements/1.1/"
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xmlns:media="http://search.yahoo.com/mrss/"
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xmlns:atom="http://www.w3.org/2005/Atom">
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<channel>
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<title>{$title}</title>
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<link>http{$https}://{$httpHost}{$httpInfo}/</link>
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<description>{$title}</description>
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<image url="{$icon}" title="{$imageTitle}" link="{$uri}"/>
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<atom:link rel="alternate" type="text/html" href="{$uri}" />
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<atom:link rel="self" href="http{$https}://{$httpHost}{$serverRequestUri}" />
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{$items}
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</channel>
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</rss>
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EOD;
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// Remove invalid non-UTF8 characters
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ini_set('mbstring.substitute_character', 'none');
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$toReturn = mb_convert_encoding($toReturn, $this->getCharset(), 'UTF-8');
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return $toReturn;
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}
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public function display(){
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$this
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->setContentType('application/rss+xml; charset=' . $this->getCharset())
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->callContentType();
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return parent::display();
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}
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private function xml_encode($text){
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return htmlspecialchars($text, ENT_XML1);
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}
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}
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