149 lines
4.4 KiB
PHP
149 lines
4.4 KiB
PHP
<?php
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namespace PicoFeed\Writers;
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require_once __DIR__.'/../Writer.php';
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class Atom extends \PicoFeed\Writer
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{
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private $required_feed_properties = array(
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'title',
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'site_url',
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'feed_url',
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);
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private $required_item_properties = array(
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'title',
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'url',
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);
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public function execute($filename = '')
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{
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$this->checkRequiredProperties($this->required_feed_properties, $this);
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$this->dom = new \DomDocument('1.0', 'UTF-8');
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$this->dom->formatOutput = true;
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// <feed/>
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$feed = $this->dom->createElement('feed');
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$feed->setAttributeNodeNS(new \DomAttr('xmlns', 'http://www.w3.org/2005/Atom'));
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// <generator/>
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$generator = $this->dom->createElement('generator', 'PicoFeed');
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$generator->setAttribute('uri', 'https://github.com/fguillot/picoFeed');
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$feed->appendChild($generator);
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// <title/>
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$feed->appendChild($this->dom->createElement('title', $this->title));
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// <id/>
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$feed->appendChild($this->dom->createElement('id', $this->site_url));
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// <updated/>
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$this->addUpdated($feed, isset($this->updated) ? $this->updated : '');
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// <link rel="alternate" type="text/html" href="http://example.org/"/>
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$this->addLink($feed, $this->site_url);
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// <link rel="self" type="application/atom+xml" href="http://example.org/feed.atom"/>
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$this->addLink($feed, $this->feed_url, 'self', 'application/atom+xml');
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// <author/>
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if (isset($this->author)) $this->addAuthor($feed, $this->author);
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// <entry/>
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foreach ($this->items as $item) {
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$this->checkRequiredProperties($this->required_item_properties, $item);
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$entry = $this->dom->createElement('entry');
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// <title/>
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$entry->appendChild($this->dom->createElement('title', $item['title']));
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// <id/>
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$entry->appendChild($this->dom->createElement('id', $item['url']));
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// <updated/>
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$this->addUpdated($entry, isset($item['updated']) ? $item['updated'] : '');
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// <published/>
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if (isset($item['published'])) {
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$entry->appendChild($this->dom->createElement('published', date(DATE_ATOM, $item['published'])));
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}
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// <link rel="alternate" type="text/html" href="http://example.org/"/>
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$this->addLink($entry, $item['url']);
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// <summary/>
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if (isset($item['summary'])) {
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$entry->appendChild($this->dom->createElement('summary', $item['summary']));
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}
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// <content/>
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if (isset($item['content'])) {
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$content = $this->dom->createElement('content');
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$content->setAttribute('type', 'html');
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$content->appendChild($this->dom->createCDATASection($item['content']));
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$entry->appendChild($content);
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}
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// <author/>
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if (isset($item['author'])) $this->addAuthor($entry, $item['author']);
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$feed->appendChild($entry);
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}
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$this->dom->appendChild($feed);
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if ($filename) {
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$this->dom->save($filename);
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}
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else {
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return $this->dom->saveXML();
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}
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}
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public function addLink($xml, $url, $rel = 'alternate', $type = 'text/html')
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{
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$link = $this->dom->createElement('link');
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$link->setAttribute('rel', $rel);
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$link->setAttribute('type', $type);
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$link->setAttribute('href', $url);
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$xml->appendChild($link);
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}
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public function addUpdated($xml, $value = '')
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{
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$xml->appendChild($this->dom->createElement(
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'updated',
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date(DATE_ATOM, $value ?: time())
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));
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}
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public function addAuthor($xml, array $values)
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{
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$author = $this->dom->createElement('author');
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if (isset($values['name'])) {
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$name = $this->dom->createElement('name', $values['name']);
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$author->appendChild($name);
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}
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if (isset($values['email'])) {
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$email = $this->dom->createElement('email', $values['email']);
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$author->appendChild($email);
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}
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if (isset($values['url'])) {
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$uri = $this->dom->createElement('uri', $values['url']);
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$author->appendChild($uri);
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}
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$xml->appendChild($author);
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}
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} |