181 lines
4.4 KiB
PHP
181 lines
4.4 KiB
PHP
<?php
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namespace MediaWiki\Interwiki;
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/**
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* InterwikiLookupAdapter on top of SiteLookup
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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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* @since 1.29
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* @ingroup InterwikiLookup
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*
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* @license GPL-2.0-or-later
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*/
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use Interwiki;
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use MediaWikiSite;
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use Site;
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use SiteLookup;
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class InterwikiLookupAdapter implements InterwikiLookup {
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/**
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* @var SiteLookup
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*/
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private $siteLookup;
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/**
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* @var Interwiki[]|null associative array mapping interwiki prefixes to Interwiki objects
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*/
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private $interwikiMap;
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public function __construct(
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SiteLookup $siteLookup,
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array $interwikiMap = null
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) {
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$this->siteLookup = $siteLookup;
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$this->interwikiMap = $interwikiMap;
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}
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/**
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* See InterwikiLookup::isValidInterwiki
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* It loads the whole interwiki map.
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*
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* @param string $prefix Interwiki prefix to use
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* @return bool Whether it exists
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*/
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public function isValidInterwiki( $prefix ) {
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return array_key_exists( $prefix, $this->getInterwikiMap() );
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}
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/**
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* See InterwikiLookup::fetch
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* It loads the whole interwiki map.
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*
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* @param string $prefix Interwiki prefix to use
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* @return Interwiki|null|bool
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*/
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public function fetch( $prefix ) {
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if ( $prefix == '' ) {
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return null;
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}
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if ( !$this->isValidInterwiki( $prefix ) ) {
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return false;
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}
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// @phan-suppress-next-line PhanTypeArraySuspiciousNullable
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return $this->interwikiMap[$prefix];
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}
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/**
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* See InterwikiLookup::getAllPrefixes
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*
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* @param string|null $local If set, limits output to local/non-local interwikis
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* @return array[] interwiki rows
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*/
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public function getAllPrefixes( $local = null ) {
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$res = [];
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foreach ( $this->getInterwikiMap() as $interwikiId => $interwiki ) {
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if ( $local === null || $interwiki->isLocal() === $local ) {
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$res[] = [
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'iw_prefix' => $interwikiId,
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'iw_url' => $interwiki->getURL(),
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'iw_api' => $interwiki->getAPI(),
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'iw_wikiid' => $interwiki->getWikiID(),
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'iw_local' => $interwiki->isLocal(),
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'iw_trans' => $interwiki->isTranscludable(),
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];
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}
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}
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return $res;
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}
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/**
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* See InterwikiLookup::invalidateCache
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*
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* @param string $prefix
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*/
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public function invalidateCache( $prefix ) {
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if ( !isset( $this->interwikiMap[$prefix] ) ) {
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return;
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}
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$globalId = $this->interwikiMap[$prefix]->getWikiID();
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unset( $this->interwikiMap[$prefix] );
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// Reload the interwiki
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$site = $this->siteLookup->getSites()->getSite( $globalId );
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$interwikis = $this->getSiteInterwikis( $site );
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$this->interwikiMap = array_merge( $this->interwikiMap, [ $interwikis[$prefix] ] );
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}
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/**
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* Load interwiki map to use as cache
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*/
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private function loadInterwikiMap() {
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$interwikiMap = [];
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$siteList = $this->siteLookup->getSites();
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foreach ( $siteList as $site ) {
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$interwikis = $this->getSiteInterwikis( $site );
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$interwikiMap = array_merge( $interwikiMap, $interwikis );
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}
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$this->interwikiMap = $interwikiMap;
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}
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/**
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* Get interwikiMap attribute, load if needed.
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*
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* @return Interwiki[]
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*/
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private function getInterwikiMap() {
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if ( $this->interwikiMap === null ) {
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$this->loadInterwikiMap();
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}
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return $this->interwikiMap;
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}
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/**
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* Load interwikis for the given site
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*
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* @param Site $site
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* @return Interwiki[]
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*/
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private function getSiteInterwikis( Site $site ) {
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$url = $site->getPageUrl();
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if ( $site instanceof MediaWikiSite ) {
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$path = $site->getFileUrl( 'api.php' );
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} else {
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$path = '';
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}
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$local = $site->getSource() === 'local';
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$interwikis = [];
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foreach ( $site->getInterwikiIds() as $interwiki ) {
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// TODO: How to adapt trans?
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$interwikis[$interwiki] = new Interwiki(
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$interwiki,
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$url,
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$path,
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$site->getGlobalId(),
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$local
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);
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}
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return $interwikis;
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}
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}
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