<?php /** * Atom * Documentation Source http://en.wikipedia.org/wiki/Atom_%28standard%29 and * http://tools.ietf.org/html/rfc4287 */ class AtomFormat extends FormatAbstract{ public function stringify(){ $https = isset($_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']); $uri = !empty($extraInfos['uri']) ? $extraInfos['uri'] : 'https://github.com/sebsauvage/rss-bridge'; $icon = $this->xml_encode('http://icons.better-idea.org/icon?url='. $uri .'&size=64'); $uri = $this->xml_encode($uri); $entries = ''; foreach($this->getItems() as $item){ $entryAuthor = isset($item['author']) ? $this->xml_encode($item['author']) : ''; $entryTitle = isset($item['title']) ? $this->xml_encode($item['title']) : ''; $entryUri = isset($item['uri']) ? $this->xml_encode($item['uri']) : ''; $entryTimestamp = isset($item['timestamp']) ? $this->xml_encode(date(DATE_ATOM, $item['timestamp'])) : ''; $entryContent = isset($item['content']) ? $this->xml_encode($this->sanitizeHtml($item['content'])) : ''; $entryEnclosures = ''; if(isset($item['enclosures'])){ foreach($item['enclosures'] as $enclosure){ $entryEnclosures .= '<link rel="enclosure" href="' . $this->xml_encode($enclosure) . '"/>' . PHP_EOL; } } $entries .= <<<EOD <entry> <author> <name>{$entryAuthor}</name> </author> <title type="html">{$entryTitle}</title> <link rel="alternate" type="text/html" href="{$entryUri}" /> <id>{$entryUri}</id> <updated>{$entryTimestamp}</updated> <content type="html">{$entryContent}</content> {$entryEnclosures} </entry> EOD; } $feedTimestamp = date(DATE_ATOM, time()); $charset = $this->getCharset(); /* Data are prepared, now let's begin the "MAGIE !!!" */ $toReturn = <<<EOD <?xml version="1.0" encoding="{$charset}"?> <feed xmlns="http://www.w3.org/2005/Atom" xmlns:thr="http://purl.org/syndication/thread/1.0"> <title type="text">{$title}</title> <id>http{$https}://{$httpHost}{$httpInfo}/</id> <icon>{$icon}</icon> <logo>{$icon}</logo> <updated>{$feedTimestamp}</updated> <link rel="alternate" type="text/html" href="{$uri}" /> <link rel="self" href="http{$https}://{$httpHost}{$serverRequestUri}" /> {$entries} </feed> EOD; // Remove invalid characters ini_set('mbstring.substitute_character', 'none'); $toReturn = mb_convert_encoding($toReturn, $this->getCharset(), 'UTF-8'); return $toReturn; } public function display(){ $this ->setContentType('application/atom+xml; charset=' . $this->getCharset()) ->callContentType(); return parent::display(); } private function xml_encode($text){ return htmlspecialchars($text, ENT_XML1); } }