92 lines
3.3 KiB
PHP
92 lines
3.3 KiB
PHP
<?php
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/**
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* Atom
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* Documentation Source http://en.wikipedia.org/wiki/Atom_%28standard%29 and http://tools.ietf.org/html/rfc4287
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*
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* @name Atom
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*/
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class AtomFormat extends FormatAbstract{
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public function stringify(){
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/* Datas preparation */
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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 = htmlspecialchars($_SERVER['REQUEST_URI']);
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$extraInfos = $this->getExtraInfos();
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$title = htmlspecialchars($extraInfos['name']);
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$uri = htmlspecialchars($extraInfos['uri']);
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$entries = '';
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foreach($this->getDatas() as $data){
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$entryName = is_null($data->name) ? $title : $data->name;
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$entryAuthor = is_null($data->author) ? $uri : $data->author;
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$entryTitle = is_null($data->title) ? '' : $data->title;
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$entryUri = is_null($data->uri) ? '' : $data->uri;
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$entryTimestamp = is_null($data->timestamp) ? '' : date(DATE_ATOM, $data->timestamp);
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// We prevent content from closing the CDATA too early.
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$entryContent = is_null($data->content) ? '' : '<![CDATA[' . $this->sanitizeHtml(str_replace(']]>','',$data->content)) . ']]>';
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$entries .= <<<EOD
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<entry>
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<author>
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<name>{$entryName}</name>
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<uri>{$entryAuthor}</uri>
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</author>
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<title type="html"><![CDATA[{$entryTitle}]]></title>
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<link rel="alternate" type="text/html" href="{$entryUri}" />
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<id>{$entryUri}</id>
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<updated>{$entryTimestamp}</updated>
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<content type="html">{$entryContent}</content>
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</entry>
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EOD;
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}
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/*
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TODO :
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- Security: Disable Javascript ?
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- <updated> : Define new extra info ?
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- <content type="html"> : RFC look with xhtml, keep this in spite of ?
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*/
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// #### TEMPORARY FIX ###
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$feedTimestamp = date(DATE_ATOM, time());
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// ################
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/* Data are prepared, now let's begin the "MAGIE !!!" */
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$toReturn = '<?xml version="1.0" encoding="UTF-8"?>';
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$toReturn .= <<<EOD
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<feed xmlns="http://www.w3.org/2005/Atom" xmlns:thr="http://purl.org/syndication/thread/1.0" xml:lang="en-US">
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<title type="text">{$title}</title>
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<id>http{$https}://{$httpHost}{$httpInfo}/</id>
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<updated>{$feedTimestamp}</updated>
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<link rel="alternate" type="text/html" href="{$uri}" />
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<link rel="self" href="http{$https}://{$httpHost}{$serverRequestUri}" />
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{$entries}
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</feed>
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EOD;
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// Remove invalid non-UTF8 characters
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// We cannot use iconv because of a bug in some versions of iconv.
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// See http://www.php.net/manual/fr/function.iconv.php#108643
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//$toReturn = iconv("UTF-8", "UTF-8//IGNORE", $toReturn);
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// So we use mb_convert_encoding instead:
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ini_set('mbstring.substitute_character', 'none');
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$toReturn= mb_convert_encoding($toReturn, 'UTF-8', '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/atom+xml; charset=utf8') // We force UTF-8 in ATOM output.
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->callContentType();
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return parent::display();
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}
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} |