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35 lines
1.4 KiB
35 lines
1.4 KiB
<?php
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/** @license MIT
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* Copyright 2018 J. King et al.
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* See LICENSE and AUTHORS files for details */
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declare(strict_types=1);
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namespace JKingWeb\Lax\Parser\XML\Primitives;
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use JKingWeb\Lax\Parser\XML\XPath;
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trait Entry {
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/** Primitive to fetch a collection of authors associated with an Atom entry
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*
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* This differs from feeds in that an entry's <source> element (which possibly contains metadata for the source feed) is checked for authors if the entry itself has none
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*/
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protected function getAuthorsAtom() {
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return $this->fetchPeopleAtom("atom:author", "author") ?? $this->fetchPeopleAtom("atom:source[1]/atom:author", "author");
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}
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/** Primitive to fetch an RDF entry's canonical URL */
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protected function getUrlRss1() {
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// XPath doesn't seem to like the query we'd need for this, so it must be done the hard way.
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$node = $this->subject;
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if ($node->localName === "item" && ($node->namespaceURI === XPath::NS['rss1'] || $node->namespaceURI == XPath::NS['rss0']) && $node->hasAttributeNS(XPath::NS['rdf'], "about")) {
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return $this->resolveNodeUrl($node, "about", XPath::NS['rdf']);
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} else {
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return null;
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}
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}
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/** Primitive to fetch the modification date of an RSS feed */
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protected function getDateModifiedRss2() {
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return $this->fetchDate("pubDate");
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}
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}
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