119 lines
2.8 KiB
PHP
119 lines
2.8 KiB
PHP
<?php
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/**
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* @brief Class for managing Atom documents
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* @author <a href='https://www.invisioncommunity.com'>Invision Power Services, Inc.</a>
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* @copyright (c) Invision Power Services, Inc.
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* @license https://www.invisioncommunity.com/legal/standards/
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* @package Invision Community
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* @since 5 Feb 2014
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*/
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namespace IPS\Xml;
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/* To prevent PHP errors (extending class does not exist) revealing path */
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use Exception;
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use IPS\DateTime;
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use IPS\Http\Url;
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use function defined;
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if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
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{
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header( ($_SERVER['SERVER_PROTOCOL'] ?? 'HTTP/1.0') . ' 403 Forbidden' );
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exit;
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}
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/**
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* Class for managing Atom documents
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*/
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class Atom extends SimpleXML
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{
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/**
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* Get title
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*
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* @return string
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*/
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public function title(): string
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{
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return $this->title;
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}
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/**
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* Get articles
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*
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* @param mixed|null $guidKey In previous versions, we encoded a key with the GUID. For legacy purposes, this can be passed here.
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* @return array
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*/
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public function articles( mixed $guidKey=NULL ): array
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{
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$articles = array();
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$namespaces = $this->getDocNamespaces();
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foreach ( $this->entry as $item )
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{
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$link = NULL;
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if ( isset( $item->link ) )
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{
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/* Links are object nodes with attributes we need to parse - try to find the right link */
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$linkToCheck = NULL;
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foreach( $item->link as $_link )
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{
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$attributes = $_link->attributes();
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if( !isset( $attributes['rel'] ) OR ( isset( $attributes['rel'] ) AND $attributes['rel'] == 'alternate' ) )
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{
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$linkToCheck = $attributes['href'];
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break;
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}
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}
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if( $linkToCheck )
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{
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try
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{
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$link = Url::external( $linkToCheck );
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}
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catch ( Exception $e ) { }
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}
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}
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$key = md5( $guidKey . ( (string) $item->id ) );
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$articles[ $key ] = array(
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'title' => ( (string) $item->title ) ?: ( mb_substr( strip_tags( $item->content ), 0, 47 ) . '...' ),
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'content' => isset( $item->content ) ? (string) $item->content : (string) $item->title,
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'date' => DateTime::ts( strtotime( $item->updated ) ),
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'link' => $link
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);
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/* Loop through all child elements and just add them to the array
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in case there is a custom extension to process them */
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foreach( $item->children() as $name => $element )
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{
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if( !in_array( $name, [ 'link', 'title', 'content', 'updated' ] ) )
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{
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$articles[ $key ][ $name ] = (string) $element;
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}
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}
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foreach( $namespaces as $prefix => $namespace )
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{
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if( empty( $prefix ) )
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{
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continue;
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}
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if( $elements = $item->children( $prefix, true ) )
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{
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foreach( $elements as $name => $element )
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{
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if( !isset( $articles[ $key ][ $prefix . ":" . $name ] ) )
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{
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$articles[ $key ][ $prefix . ":" . $name ] = (string) $element;
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}
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}
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}
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}
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}
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return $articles;
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}
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} |