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ApiQueryExtLinksUsage.php
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ApiQueryExtLinksUsage.php
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<?php
/**
* 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\ExternalLinks\LinkFilter;
use MediaWiki\MainConfigNames;
use MediaWiki\Parser\Parser;
use MediaWiki\Title\Title;
use MediaWiki\Utils\UrlUtils;
use Wikimedia\ParamValidator\ParamValidator;
use Wikimedia\ParamValidator\TypeDef\IntegerDef;
use Wikimedia\Rdbms\IExpression;
use Wikimedia\Rdbms\LikeValue;
/**
* @ingroup API
*/
class ApiQueryExtLinksUsage extends ApiQueryGeneratorBase {
private UrlUtils $urlUtils;
public function __construct( ApiQuery $query, string $moduleName, UrlUtils $urlUtils ) {
parent::__construct( $query, $moduleName, 'eu' );
$this->urlUtils = $urlUtils;
}
public function execute() {
$this->run();
}
public function getCacheMode( $params ) {
return 'public';
}
public function executeGenerator( $resultPageSet ) {
$this->run( $resultPageSet );
}
/**
* @param ApiPageSet|null $resultPageSet
* @return void
*/
private function run( $resultPageSet = null ) {
$params = $this->extractRequestParams();
$db = $this->getDB();
$query = $params['query'];
$protocol = LinkFilter::getProtocolPrefix( $params['protocol'] );
$this->addTables( [ 'externallinks', 'page' ] );
$this->addJoinConds( [ 'page' => [ 'JOIN', 'page_id=el_from' ] ] );
$fields = [ 'el_to_domain_index', 'el_to_path' ];
$miser_ns = [];
if ( $this->getConfig()->get( MainConfigNames::MiserMode ) ) {
$miser_ns = $params['namespace'] ?: [];
} else {
$this->addWhereFld( 'page_namespace', $params['namespace'] );
}
if ( $query !== null && $query !== '' ) {
// Normalize query to match the normalization applied for the externallinks table
$query = Parser::normalizeLinkUrl( $query );
$conds = LinkFilter::getQueryConditions( $query, [
'protocol' => $protocol,
'oneWildcard' => true,
'db' => $db
] );
if ( !$conds ) {
$this->dieWithError( 'apierror-badquery' );
}
$this->addWhere( $conds );
} else {
if ( $protocol !== null ) {
$this->addWhere(
$db->expr( 'el_to_domain_index', IExpression::LIKE, new LikeValue( "$protocol", $db->anyString() ) )
);
}
}
$orderBy = [ 'el_id' ];
$this->addOption( 'ORDER BY', $orderBy );
$this->addFields( $orderBy ); // Make sure
$prop = array_fill_keys( $params['prop'], true );
$fld_ids = isset( $prop['ids'] );
$fld_title = isset( $prop['title'] );
$fld_url = isset( $prop['url'] );
if ( $resultPageSet === null ) {
$this->addFields( [
'page_id',
'page_namespace',
'page_title'
] );
foreach ( $fields as $field ) {
$this->addFieldsIf( $field, $fld_url );
}
} else {
$this->addFields( $resultPageSet->getPageTableFields() );
}
$limit = $params['limit'];
$this->addOption( 'LIMIT', $limit + 1 );
// T244254: Avoid MariaDB deciding to scan all of `page`.
$this->addOption( 'STRAIGHT_JOIN' );
if ( $params['continue'] !== null ) {
$cont = $this->parseContinueParamOrDie( $params['continue'],
array_fill( 0, count( $orderBy ), 'string' ) );
$conds = array_combine( $orderBy, array_map( 'rawurldecode', $cont ) );
$this->addWhere( $db->buildComparison( '>=', $conds ) );
}
$res = $this->select( __METHOD__ );
$result = $this->getResult();
if ( $resultPageSet === null ) {
$this->executeGenderCacheFromResultWrapper( $res, __METHOD__ );
}
$count = 0;
foreach ( $res as $row ) {
if ( ++$count > $limit ) {
// We've reached the one extra which shows that there are
// additional pages to be had. Stop here...
$this->setContinue( $orderBy, $row );
break;
}
if ( count( $miser_ns ) && !in_array( $row->page_namespace, $miser_ns ) ) {
continue;
}
if ( $resultPageSet === null ) {
$vals = [
ApiResult::META_TYPE => 'assoc',
];
if ( $fld_ids ) {
$vals['pageid'] = (int)$row->page_id;
}
if ( $fld_title ) {
$title = Title::makeTitle( $row->page_namespace, $row->page_title );
ApiQueryBase::addTitleInfo( $vals, $title );
}
if ( $fld_url ) {
$to = LinkFilter::reverseIndexes( $row->el_to_domain_index ) . $row->el_to_path;
// expand protocol-relative urls
if ( $params['expandurl'] ) {
$to = (string)$this->urlUtils->expand( $to, PROTO_CANONICAL );
}
$vals['url'] = $to;
}
$fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $vals );
if ( !$fit ) {
$this->setContinue( $orderBy, $row );
break;
}
} else {
$resultPageSet->processDbRow( $row );
}
}
if ( $resultPageSet === null ) {
$result->addIndexedTagName( [ 'query', $this->getModuleName() ],
$this->getModulePrefix() );
}
}
private function setContinue( $orderBy, $row ) {
$fields = [];
foreach ( $orderBy as $field ) {
$fields[] = strtr( $row->$field, [ '%' => '%25', '|' => '%7C' ] );
}
$this->setContinueEnumParameter( 'continue', implode( '|', $fields ) );
}
public function getAllowedParams() {
$ret = [
'prop' => [
ParamValidator::PARAM_ISMULTI => true,
ParamValidator::PARAM_DEFAULT => 'ids|title|url',
ParamValidator::PARAM_TYPE => [
'ids',
'title',
'url'
],
ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
],
'continue' => [
ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
],
'protocol' => [
ParamValidator::PARAM_TYPE => LinkFilter::prepareProtocols(),
ParamValidator::PARAM_DEFAULT => '',
],
'query' => null,
'namespace' => [
ParamValidator::PARAM_ISMULTI => true,
ParamValidator::PARAM_TYPE => 'namespace'
],
'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
],
'expandurl' => [
ParamValidator::PARAM_TYPE => 'boolean',
ParamValidator::PARAM_DEFAULT => false,
ParamValidator::PARAM_DEPRECATED => true,
],
];
if ( $this->getConfig()->get( MainConfigNames::MiserMode ) ) {
$ret['namespace'][ApiBase::PARAM_HELP_MSG_APPEND] = [
'api-help-param-limited-in-miser-mode',
];
}
return $ret;
}
protected function getExamplesMessages() {
return [
'action=query&list=exturlusage&euquery=www.mediawiki.org'
=> 'apihelp-query+exturlusage-example-simple',
];
}
public function getHelpUrls() {
return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Exturlusage';
}
}
/** @deprecated class alias since 1.43 */
class_alias( ApiQueryExtLinksUsage::class, 'ApiQueryExtLinksUsage' );

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