<?php /** * Atom * Documentation Source http://en.wikipedia.org/wiki/Atom_%28standard%29 and http://tools.ietf.org/html/rfc4287 * * @name Atom */ class AtomFormat 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'] : ''; $serverRequestUri = htmlspecialchars($_SERVER['REQUEST_URI']); $extraInfos = $this->getExtraInfos(); $title = htmlspecialchars($extraInfos['name']); $uri = htmlspecialchars($extraInfos['uri']); $entries = ''; foreach($this->getDatas() as $data){ $entryName = is_null($data->name) ? $title : $data->name; $entryAuthor = is_null($data->author) ? $uri : $data->author; $entryTitle = is_null($data->title) ? '' : $data->title; $entryUri = is_null($data->uri) ? '' : $data->uri; $entryTimestamp = is_null($data->timestamp) ? '' : date(DATE_ATOM, $data->timestamp); // We prevent content from closing the CDATA too early. $entryContent = is_null($data->content) ? '' : '<![CDATA[' . $this->sanitizeHtml(str_replace(']]>','',$data->content)) . ']]>'; $entries .= <<<EOD <entry> <author> <name>{$entryName}</name> <uri>{$entryAuthor}</uri> </author> <title type="html"><![CDATA[{$entryTitle}]]></title> <link rel="alternate" type="text/html" href="{$entryUri}" /> <id>{$entryUri}</id> <updated>{$entryTimestamp}</updated> <content type="html">{$entryContent}</content> </entry> 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"?>'; $toReturn .= <<<EOD <feed xmlns="http://www.w3.org/2005/Atom" xmlns:thr="http://purl.org/syndication/thread/1.0" xml:lang="en-US"> <title type="text">{$title}</title> <id>http{$https}://{$httpHost}{$httpInfo}/</id> <updated></updated> <link rel="alternate" type="text/html" href="{$uri}" /> <link rel="self" href="http{$https}://{$httpHost}{$serverRequestUri}" /> {$entries} </feed> 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/atom+xml; charset=utf8') // We force UTF-8 in ATOM output. ->callContentType(); return parent::display(); } }