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