<?php
/**
- * Provides DublinCore and CreativeCommons metadata
*
* Copyright 2004, Evan Prodromou <evan@wikitravel.org>.
*
public abstract function show();
- /**
- *
- */
protected function setup() {
global $wgOut, $wgRequest;
}
}
- /**
- *
- */
protected function reallyFullUrl() {
return $this->mArticle->getTitle()->getFullURL();
}
}
protected function pageOrString( $name, $page, $str ) {
- if( $page instanceof Title )
+ if( $page instanceof Title ) {
$nt = $page;
- else
+ } else {
$nt = Title::newFromText( $page );
+ }
if( !$nt || $nt->getArticleID() == 0 ){
$this->element( $name, $str );
}
}
-class DublinCoreRdf extends RdfMetaData {
-
- public function show(){
- if( $this->setup() ){
- $this->prologue();
- $this->basics();
- $this->epilogue();
- }
- }
-
- /**
- * begin of the page
- */
- protected function prologue() {
- $url = htmlspecialchars( $this->reallyFullUrl() );
- print <<<PROLOGUE
-<?xml version="1.0" encoding="UTF-8" ?>
-<!DOCTYPE rdf:RDF PUBLIC "-//DUBLIN CORE//DCMES DTD 2002/07/31//EN" "http://dublincore.org/documents/2002/07/31/dcmes-xml/dcmes-xml-dtd.dtd">
-<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
- xmlns:dc="http://purl.org/dc/elements/1.1/">
- <rdf:Description rdf:about="{$url}">
-
-PROLOGUE;
- }
-
- /**
- * end of the page
- */
- protected function epilogue() {
- print <<<EPILOGUE
- </rdf:Description>
-</rdf:RDF>
-EPILOGUE;
- }
-}
-
-class CreativeCommonsRdf extends RdfMetaData {
-
- public function show(){
- if( $this->setup() ){
- global $wgRightsUrl;
-
- $url = $this->reallyFullUrl();
-
- $this->prologue();
- $this->subPrologue('Work', $url);
-
- $this->basics();
- if( $wgRightsUrl ){
- $url = htmlspecialchars( $wgRightsUrl );
- print "\t\t<cc:license rdf:resource=\"$url\" />\n";
- }
-
- $this->subEpilogue('Work');
-
- if( $wgRightsUrl ){
- $terms = $this->getTerms( $wgRightsUrl );
- if( $terms ){
- $this->subPrologue( 'License', $wgRightsUrl );
- $this->license( $terms );
- $this->subEpilogue( 'License' );
- }
- }
- }
-
- $this->epilogue();
- }
-
- protected function prologue() {
- echo <<<PROLOGUE
-<?xml version='1.0' encoding="UTF-8" ?>
-<rdf:RDF xmlns:cc="http://web.resource.org/cc/"
- xmlns:dc="http://purl.org/dc/elements/1.1/"
- xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
-
-PROLOGUE;
- }
-
- protected function subPrologue( $type, $url ){
- $url = htmlspecialchars( $url );
- echo "\t<cc:{$type} rdf:about=\"{$url}\">\n";
- }
-
- protected function subEpilogue($type) {
- echo "\t</cc:{$type}>\n";
- }
-
- protected function license($terms) {
-
- foreach( $terms as $term ){
- switch( $term ) {
- case 're':
- $this->term('permits', 'Reproduction'); break;
- case 'di':
- $this->term('permits', 'Distribution'); break;
- case 'de':
- $this->term('permits', 'DerivativeWorks'); break;
- case 'nc':
- $this->term('prohibits', 'CommercialUse'); break;
- case 'no':
- $this->term('requires', 'Notice'); break;
- case 'by':
- $this->term('requires', 'Attribution'); break;
- case 'sa':
- $this->term('requires', 'ShareAlike'); break;
- case 'sc':
- $this->term('requires', 'SourceCode'); break;
- }
- }
- }
-
- protected function term( $term, $name ){
- print "\t\t<cc:{$term} rdf:resource=\"http://web.resource.org/cc/{$name}\" />\n";
- }
-
- protected function epilogue() {
- echo "</rdf:RDF>\n";
- }
-}