includes/api/ApiQueryIWLinks.php
<?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
*/
use MediaWiki\Title\Title;
use MediaWiki\Utils\UrlUtils;
use Wikimedia\ParamValidator\ParamValidator;
use Wikimedia\ParamValidator\TypeDef\IntegerDef;
/**
* A query module to list all interwiki links on a page
*
* @ingroup API
*/
class ApiQueryIWLinks extends ApiQueryBase {
private UrlUtils $urlUtils;
/**
* @param ApiQuery $query
* @param string $moduleName
* @param UrlUtils $urlUtils
*/
public function __construct( ApiQuery $query, $moduleName, UrlUtils $urlUtils ) {
parent::__construct( $query, $moduleName, 'iw' );
$this->urlUtils = $urlUtils;
}
public function execute() {
$pages = $this->getPageSet()->getGoodPages();
if ( $pages === [] ) {
return;
}
$params = $this->extractRequestParams();
$prop = array_fill_keys( (array)$params['prop'], true );
if ( isset( $params['title'] ) && !isset( $params['prefix'] ) ) {
$this->dieWithError(
[
'apierror-invalidparammix-mustusewith',
$this->encodeParamName( 'title' ),
$this->encodeParamName( 'prefix' ),
],
'invalidparammix'
);
}
// Handle deprecated param
$this->requireMaxOneParameter( $params, 'url', 'prop' );
if ( $params['url'] ) {
$prop = [ 'url' => 1 ];
}
$this->addFields( [
'iwl_from',
'iwl_prefix',
'iwl_title'
] );
$this->addTables( 'iwlinks' );
$this->addWhereFld( 'iwl_from', array_keys( $pages ) );
if ( $params['continue'] !== null ) {
$cont = $this->parseContinueParamOrDie( $params['continue'], [ 'int', 'string', 'string' ] );
$op = $params['dir'] == 'descending' ? '<=' : '>=';
$db = $this->getDB();
$this->addWhere( $db->buildComparison( $op, [
'iwl_from' => $cont[0],
'iwl_prefix' => $cont[1],
'iwl_title' => $cont[2],
] ) );
}
$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_from' . $sort,
'iwl_title' . $sort
] );
}
} else {
// Don't order by iwl_from if it's constant in the WHERE clause
if ( count( $pages ) === 1 ) {
$this->addOption( 'ORDER BY', 'iwl_prefix' . $sort );
} else {
$this->addOption( 'ORDER BY', [
'iwl_from' . $sort,
'iwl_prefix' . $sort,
'iwl_title' . $sort
] );
}
}
$this->addOption( 'LIMIT', $params['limit'] + 1 );
$res = $this->select( __METHOD__ );
$count = 0;
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...
$this->setContinueEnumParameter(
'continue',
"{$row->iwl_from}|{$row->iwl_prefix}|{$row->iwl_title}"
);
break;
}
$entry = [ 'prefix' => $row->iwl_prefix ];
if ( isset( $prop['url'] ) ) {
$title = Title::newFromText( "{$row->iwl_prefix}:{$row->iwl_title}" );
if ( $title ) {
$entry['url'] = (string)$this->urlUtils->expand( $title->getFullURL(), PROTO_CURRENT );
}
}
ApiResult::setContentValue( $entry, 'title', $row->iwl_title );
$fit = $this->addPageSubItem( $row->iwl_from, $entry );
if ( !$fit ) {
$this->setContinueEnumParameter(
'continue',
"{$row->iwl_from}|{$row->iwl_prefix}|{$row->iwl_title}"
);
break;
}
}
}
public function getCacheMode( $params ) {
return 'public';
}
public function getAllowedParams() {
return [
'prop' => [
ParamValidator::PARAM_ISMULTI => true,
ParamValidator::PARAM_TYPE => [
'url',
],
ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
],
'prefix' => null,
'title' => null,
'dir' => [
ParamValidator::PARAM_DEFAULT => 'ascending',
ParamValidator::PARAM_TYPE => [
'ascending',
'descending'
]
],
'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
],
'continue' => [
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
],
'url' => [
ParamValidator::PARAM_DEFAULT => false,
ParamValidator::PARAM_DEPRECATED => true,
],
];
}
protected function getExamplesMessages() {
$title = Title::newMainPage()->getPrefixedText();
$mp = rawurlencode( $title );
return [
"action=query&prop=iwlinks&titles={$mp}"
=> 'apihelp-query+iwlinks-example-simple',
];
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Iwlinks';
}
}