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NaiveImportTitleFactory.php
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NaiveImportTitleFactory.php
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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
namespace MediaWiki\Title;
use MediaWiki\Language\Language;
/**
* A class to convert page titles on a foreign wiki (ForeignTitle objects) into
* page titles on the local wiki (Title objects), using a default namespace
* mapping.
*
* For built-in namespaces (0 <= ID < 100), we try to find a local namespace
* with the same namespace ID as the foreign page. If no such namespace exists,
* or the namespace ID is unknown or > 100, we look for a local namespace with
* a matching namespace name. If that can't be found, we dump the page in the
* main namespace as a last resort.
*/
class NaiveImportTitleFactory implements ImportTitleFactory {
private Language $contentLanguage;
private NamespaceInfo $namespaceInfo;
private TitleFactory $titleFactory;
public function __construct(
Language $contentLanguage,
NamespaceInfo $namespaceInfo,
TitleFactory $titleFactory
) {
$this->contentLanguage = $contentLanguage;
$this->namespaceInfo = $namespaceInfo;
$this->titleFactory = $titleFactory;
}
/**
* Determines which local title best corresponds to the given foreign title.
* If such a title can't be found or would be locally invalid, null is
* returned.
*
* @param ForeignTitle $foreignTitle The ForeignTitle to convert
* @return Title|null
*/
public function createTitleFromForeignTitle( ForeignTitle $foreignTitle ) {
if ( $foreignTitle->isNamespaceIdKnown() ) {
$foreignNs = $foreignTitle->getNamespaceId();
// For built-in namespaces (0 <= ID < 100), we try to find a local NS with
// the same namespace ID
if (
$foreignNs < 100 &&
$this->namespaceInfo->exists( $foreignNs )
) {
return $this->titleFactory->makeTitleSafe( $foreignNs, $foreignTitle->getText() );
}
}
// Do we have a local namespace by the same name as the foreign
// namespace?
$targetNs = $this->contentLanguage->getNsIndex( $foreignTitle->getNamespaceName() );
if ( $targetNs !== false ) {
return $this->titleFactory->makeTitleSafe( $targetNs, $foreignTitle->getText() );
}
// Otherwise, just fall back to main namespace
return $this->titleFactory->makeTitleSafe( 0, $foreignTitle->getFullText() );
}
}
/** @deprecated class alias since 1.41 */
class_alias( NaiveImportTitleFactory::class, 'NaiveImportTitleFactory' );

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