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<?php
/**
* API for MediaWiki 1.17+
*
* Copyright © 2010 Sam Reed
* Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com"
*
* 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\Api;
use MediaWiki\Title\Title;
use Wikimedia\ParamValidator\ParamValidator;
use Wikimedia\ParamValidator\TypeDef\IntegerDef;
/**
* This gives links pointing to the given interwiki
* @ingroup API
*/
class ApiQueryIWBacklinks extends ApiQueryGeneratorBase {
public function __construct( ApiQuery $query, string $moduleName ) {
parent::__construct( $query, $moduleName, 'iwbl' );
}
public function execute() {
$this->run();
}
public function executeGenerator( $resultPageSet ) {
$this->run( $resultPageSet );
}
/**
* @param ApiPageSet|null $resultPageSet
* @return void
*/
public function run( $resultPageSet = null ) {
$params = $this->extractRequestParams();
if ( isset( $params['title'] ) && !isset( $params['prefix'] ) ) {
$this->dieWithError(
[
'apierror-invalidparammix-mustusewith',
$this->encodeParamName( 'title' ),
$this->encodeParamName( 'prefix' ),
],
'invalidparammix'
);
}
if ( $params['continue'] !== null ) {
$cont = $this->parseContinueParamOrDie( $params['continue'], [ 'string', 'string', 'int' ] );
$db = $this->getDB();
$op = $params['dir'] == 'descending' ? '<=' : '>=';
$this->addWhere( $db->buildComparison( $op, [
'iwl_prefix' => $cont[0],
'iwl_title' => $cont[1],
'iwl_from' => $cont[2],
] ) );
}
$prop = array_fill_keys( $params['prop'], true );
$iwprefix = isset( $prop['iwprefix'] );
$iwtitle = isset( $prop['iwtitle'] );
$this->addTables( [ 'iwlinks', 'page' ] );
$this->addWhere( 'iwl_from = page_id' );
$this->addFields( [ 'page_id', 'page_title', 'page_namespace', 'page_is_redirect',
'iwl_from', 'iwl_prefix', 'iwl_title' ] );
$sort = ( $params['dir'] == 'descending' ? ' DESC' : '' );
if ( isset( $params['prefix'] ) ) {
$this->addWhereFld( 'iwl_prefix', $params['prefix'] );
if ( isset( $params['title'] ) ) {
$this->addWhereFld( 'iwl_title', $params['title'] );
$this->addOption( 'ORDER BY', 'iwl_from' . $sort );
} else {
$this->addOption( 'ORDER BY', [
'iwl_title' . $sort,
'iwl_from' . $sort
] );
}
} else {
$this->addOption( 'ORDER BY', [
'iwl_prefix' . $sort,
'iwl_title' . $sort,
'iwl_from' . $sort
] );
}
$this->addOption( 'LIMIT', $params['limit'] + 1 );
$res = $this->select( __METHOD__ );
$pages = [];
$count = 0;
$result = $this->getResult();
if ( $resultPageSet === null ) {
$this->executeGenderCacheFromResultWrapper( $res, __METHOD__ );
}
foreach ( $res as $row ) {
if ( ++$count > $params['limit'] ) {
// We've reached the one extra which shows that there are
// additional pages to be had. Stop here...
// Continue string preserved in case the redirect query doesn't
// pass the limit
$this->setContinueEnumParameter(
'continue',
"{$row->iwl_prefix}|{$row->iwl_title}|{$row->iwl_from}"
);
break;
}
if ( $resultPageSet !== null ) {
$pages[] = Title::newFromRow( $row );
} else {
$entry = [ 'pageid' => (int)$row->page_id ];
$title = Title::makeTitle( $row->page_namespace, $row->page_title );
ApiQueryBase::addTitleInfo( $entry, $title );
if ( $row->page_is_redirect ) {
$entry['redirect'] = true;
}
if ( $iwprefix ) {
$entry['iwprefix'] = $row->iwl_prefix;
}
if ( $iwtitle ) {
$entry['iwtitle'] = $row->iwl_title;
}
$fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $entry );
if ( !$fit ) {
$this->setContinueEnumParameter(
'continue',
"{$row->iwl_prefix}|{$row->iwl_title}|{$row->iwl_from}"
);
break;
}
}
}
if ( $resultPageSet === null ) {
$result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'iw' );
} else {
$resultPageSet->populateFromTitles( $pages );
}
}
public function getCacheMode( $params ) {
return 'public';
}
public function getAllowedParams() {
return [
'prefix' => null,
'title' => null,
'continue' => [
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
],
'limit' => [
ParamValidator::PARAM_DEFAULT => 10,
ParamValidator::PARAM_TYPE => 'limit',
IntegerDef::PARAM_MIN => 1,
IntegerDef::PARAM_MAX => ApiBase::LIMIT_BIG1,
IntegerDef::PARAM_MAX2 => ApiBase::LIMIT_BIG2
],
'prop' => [
ParamValidator::PARAM_ISMULTI => true,
ParamValidator::PARAM_DEFAULT => '',
ParamValidator::PARAM_TYPE => [
'iwprefix',
'iwtitle',
],
ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
],
'dir' => [
ParamValidator::PARAM_DEFAULT => 'ascending',
ParamValidator::PARAM_TYPE => [
'ascending',
'descending'
]
],
];
}
protected function getExamplesMessages() {
return [
'action=query&list=iwbacklinks&iwbltitle=Test&iwblprefix=wikibooks'
=> 'apihelp-query+iwbacklinks-example-simple',
'action=query&generator=iwbacklinks&giwbltitle=Test&giwblprefix=wikibooks&prop=info'
=> 'apihelp-query+iwbacklinks-example-generator',
];
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Iwbacklinks';
}
}
/** @deprecated class alias since 1.43 */
class_alias( ApiQueryIWBacklinks::class, 'ApiQueryIWBacklinks' );