private function tryToMatchDataItemForWikiNamespaceUri($uri)
{
$dataItem = null;
$localName = substr($uri, strlen($this->wikiNamespace));
$dbKey = rawurldecode(Escaper::decodeUri($localName));
$parts = explode('#', $dbKey, 2);
if (count($parts) == 2) {
$dbKey = $parts[0];
$subobjectname = $parts[1];
} else {
$subobjectname = '';
}
$parts = explode(':', $dbKey, 2);
// No extra NS
if (count($parts) == 1) {
return new DIWikiPage($dbKey, NS_MAIN, '', $subobjectname);
}
$namespaceId = $this->tryToMatchNamespaceName($parts[0]);
if ($namespaceId != -1 && $namespaceId !== false) {
$dataItem = new DIWikiPage($parts[1], $namespaceId, '', $subobjectname);
} else {
$title = Title::newFromDBkey($dbKey);
if ($title !== null) {
$dataItem = new DIWikiPage($title->getDBkey(), $title->getNamespace(), $title->getInterwiki(), $subobjectname);
}
}
return $dataItem;
}
function execute($query)
{
global $wgOut;
if (is_null($query) || trim($query) === '') {
if (stristr($_SERVER['HTTP_ACCEPT'], 'RDF')) {
$wgOut->redirect(SpecialPage::getTitleFor('ExportRDF')->getFullURL(array('stats' => '1')), '303');
} else {
$this->setHeaders();
$wgOut->addHTML('<p>' . wfMessage('smw_uri_doc', 'http://www.w3.org/2001/tag/issues.html#httpRange-14')->parse() . '</p>');
}
} else {
$query = Escaper::decodeUri($query);
$query = str_replace('_', '%20', $query);
$query = urldecode($query);
$title = Title::newFromText($query);
// In case the title doesn't exists throw an error page
if ($title === null) {
$wgOut->showErrorPage('badtitle', 'badtitletext');
} else {
$wgOut->redirect(stristr($_SERVER['HTTP_ACCEPT'], 'RDF') ? SpecialPage::getTitleFor('ExportRDF', $title->getPrefixedText())->getFullURL(array('xmlmime' => 'rdf')) : $title->getFullURL(), '303');
}
}
}
/**
* @return string
*/
public function decodeURI($uri)
{
return Escaper::decodeUri($uri);
}
/**
* @dataProvider decodeUriProvider
*/
public function testDecodeUri($uri, $expected)
{
$this->assertEquals($expected, Escaper::decodeUri($uri));
$this->assertEquals($uri, Escaper::encodeUri(Escaper::decodeUri($uri)));
}
/**
* Try to find an SMWDataItem that the given SMWExpElement might
* represent. Returns null if this attempt failed.
*
* @param SMWExpElement $expElement
* @return SMWDataItem or null
*/
public static function findDataItemForExpElement(SMWExpElement $expElement)
{
global $wgContLang;
$dataItem = null;
if ($expElement instanceof SMWExpResource) {
$uri = $expElement->getUri();
$wikiNamespace = self::getNamespaceUri('wiki');
if (strpos($uri, $wikiNamespace) === 0) {
$localName = substr($uri, strlen($wikiNamespace));
$dbKey = rawurldecode(Escaper::decodeUri($localName));
$parts = explode('#', $dbKey, 2);
if (count($parts) == 2) {
$dbKey = $parts[0];
$subobjectname = $parts[1];
} else {
$subobjectname = '';
}
$parts = explode(':', $dbKey, 2);
if (count($parts) == 1) {
$dataItem = new SMWDIWikiPage($dbKey, NS_MAIN, '', $subobjectname);
} else {
// try the by far most common cases directly before using Title
$namespaceName = str_replace('_', ' ', $parts[0]);
$namespaceId = -1;
foreach (array(SMW_NS_PROPERTY, NS_CATEGORY, NS_USER, NS_HELP) as $nsId) {
if ($namespaceName == $wgContLang->getNsText($nsId)) {
$namespaceId = $nsId;
break;
}
}
if ($namespaceId != -1) {
$dataItem = new SMWDIWikiPage($parts[1], $namespaceId, '', $subobjectname);
} else {
$title = Title::newFromDBkey($dbKey);
if (!is_null($title)) {
$dataItem = new SMWDIWikiPage($title->getDBkey(), $title->getNamespace(), $title->getInterwiki(), $subobjectname);
}
}
}
}
// else: not in wiki namespace -- TODO: this could be an imported URI
} else {
// TODO (currently not needed, but will be useful for displaying external SPARQL results)
}
return $dataItem;
}
