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SpecialLinkSearch.php
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SpecialLinkSearch.php
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<?php
/**
* 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\Specials;
use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\ExternalLinks\LinkFilter;
use MediaWiki\HTMLForm\HTMLForm;
use MediaWiki\MainConfigNames;
use MediaWiki\Parser\Parser;
use MediaWiki\SpecialPage\QueryPage;
use MediaWiki\Title\TitleValue;
use MediaWiki\Utils\UrlUtils;
use Skin;
use stdClass;
use Wikimedia\Rdbms\IConnectionProvider;
use Wikimedia\Rdbms\IDatabase;
use Wikimedia\Rdbms\IExpression;
use Wikimedia\Rdbms\IResultWrapper;
use Wikimedia\Rdbms\LikeValue;
/**
* Special:LinkSearch to search the external-links table.
*
* @ingroup SpecialPage
* @author Brooke Vibber
*/
class SpecialLinkSearch extends QueryPage {
/** @var array|bool */
private $mungedQuery = false;
/** @var string|null */
private $mQuery;
/** @var int|null */
private $mNs;
/** @var string|null */
private $mProt;
private UrlUtils $urlUtils;
private function setParams( $params ) {
$this->mQuery = $params['query'];
$this->mNs = $params['namespace'];
$this->mProt = $params['protocol'];
}
/**
* @param IConnectionProvider $dbProvider
* @param LinkBatchFactory $linkBatchFactory
* @param UrlUtils $urlUtils
*/
public function __construct(
IConnectionProvider $dbProvider,
LinkBatchFactory $linkBatchFactory,
UrlUtils $urlUtils
) {
parent::__construct( 'LinkSearch' );
$this->setDatabaseProvider( $dbProvider );
$this->setLinkBatchFactory( $linkBatchFactory );
$this->urlUtils = $urlUtils;
}
public function isCacheable() {
return false;
}
public function execute( $par ) {
$this->setHeaders();
$this->outputHeader();
$out = $this->getOutput();
$out->getMetadata()->setPreventClickjacking( false );
$request = $this->getRequest();
$target = $request->getVal( 'target', $par ?? '' );
$namespace = $request->getIntOrNull( 'namespace' );
$protocols_list = [];
foreach ( $this->getConfig()->get( MainConfigNames::UrlProtocols ) as $prot ) {
if ( $prot !== '//' ) {
$protocols_list[] = $prot;
}
}
$target2 = Parser::normalizeLinkUrl( $target );
$protocol = null;
$bits = $this->urlUtils->parse( $target );
if ( isset( $bits['scheme'] ) && isset( $bits['delimiter'] ) ) {
$protocol = $bits['scheme'] . $bits['delimiter'];
// Make sure UrlUtils::parse() didn't make some well-intended correction in the protocol
if ( str_starts_with( strtolower( $target ), strtolower( $protocol ) ) ) {
$target2 = substr( $target, strlen( $protocol ) );
} else {
// If it did, let LinkFilter::makeLikeArray() handle this
$protocol = '';
}
}
$out->addWikiMsg(
'linksearch-text',
'<nowiki>' . $this->getLanguage()->commaList( $protocols_list ) . '</nowiki>',
count( $protocols_list )
);
$fields = [
'target' => [
'type' => 'text',
'name' => 'target',
'id' => 'target',
'size' => 50,
'label-message' => 'linksearch-pat',
'default' => $target,
'dir' => 'ltr',
]
];
if ( !$this->getConfig()->get( MainConfigNames::MiserMode ) ) {
$fields += [
'namespace' => [
'type' => 'namespaceselect',
'name' => 'namespace',
'label-message' => 'linksearch-ns',
'default' => $namespace,
'id' => 'namespace',
'all' => '',
'cssclass' => 'namespaceselector',
],
];
}
$htmlForm = HTMLForm::factory( 'ooui', $fields, $this->getContext() );
$htmlForm->setSubmitTextMsg( 'linksearch-ok' );
$htmlForm->setWrapperLegendMsg( 'linksearch' );
$htmlForm->setTitle( $this->getPageTitle() );
$htmlForm->setMethod( 'get' );
$htmlForm->prepareForm()->displayForm( false );
$this->addHelpLink( 'Help:Linksearch' );
if ( $target != '' ) {
$this->setParams( [
'query' => $target2,
'namespace' => $namespace,
'protocol' => $protocol ] );
parent::execute( $par );
if ( $this->mungedQuery === false ) {
$out->addWikiMsg( 'linksearch-error' );
}
}
}
/**
* Disable RSS/Atom feeds
* @return bool
*/
public function isSyndicated() {
return false;
}
protected function linkParameters() {
$params = [];
$params['target'] = $this->mProt . $this->mQuery;
if ( $this->mNs !== null && !$this->getConfig()->get( MainConfigNames::MiserMode ) ) {
$params['namespace'] = $this->mNs;
}
return $params;
}
public function getQueryInfo() {
$dbr = $this->getDatabaseProvider()->getReplicaDatabase();
$field = 'el_to_domain_index';
$extraFields = [
'urldomain' => 'el_to_domain_index',
'urlpath' => 'el_to_path'
];
if ( $this->mQuery === '*' && $this->mProt !== '' ) {
if ( $this->mProt !== null ) {
$this->mungedQuery = [
$dbr->expr( $field, IExpression::LIKE, new LikeValue( $this->mProt, $dbr->anyString() ) ),
];
} else {
$this->mungedQuery = [
$dbr->expr( $field, IExpression::LIKE, new LikeValue( 'http://', $dbr->anyString() ) )
->or( $field, IExpression::LIKE, new LikeValue( 'https://', $dbr->anyString() ) ),
];
}
} else {
$this->mungedQuery = LinkFilter::getQueryConditions( $this->mQuery, [
'protocol' => $this->mProt,
'oneWildcard' => true,
'db' => $dbr
] );
if ( $this->mungedQuery === false ) {
// Invalid query; return no results
return [ 'tables' => 'page', 'fields' => 'page_id', 'conds' => '0=1' ];
}
}
$orderBy = [ 'el_id' ];
$retval = [
'tables' => [ 'page', 'externallinks' ],
'fields' => array_merge( [
'namespace' => 'page_namespace',
'title' => 'page_title',
], $extraFields ),
'conds' => array_merge(
[
'page_id = el_from',
],
$this->mungedQuery
),
'options' => [ 'ORDER BY' => $orderBy ]
];
if ( $this->mNs !== null && !$this->getConfig()->get( MainConfigNames::MiserMode ) ) {
$retval['conds']['page_namespace'] = $this->mNs;
}
return $retval;
}
/**
* Pre-fill the link cache
*
* @param IDatabase $db
* @param IResultWrapper $res
*/
public function preprocessResults( $db, $res ) {
$this->executeLBFromResultWrapper( $res );
}
/**
* @param Skin $skin
* @param stdClass $result Result row
* @return string
*/
public function formatResult( $skin, $result ) {
$title = new TitleValue( (int)$result->namespace, $result->title );
$pageLink = $this->getLinkRenderer()->makeLink( $title );
$url = LinkFilter::reverseIndexes( $result->urldomain ) . $result->urlpath;
$urlLink = $this->getLinkRenderer()->makeExternalLink( $url, $url, $this->getFullTitle() );
return $this->msg( 'linksearch-line' )->rawParams( $urlLink, $pageLink )->escaped();
}
/**
* Override to squash the ORDER BY.
* Not much point in descending order here.
* @return array
*/
protected function getOrderFields() {
return [];
}
protected function getGroupName() {
return 'pages';
}
/**
* enwiki complained about low limits on this special page
*
* @see T130058
* @todo FIXME This special page should not use LIMIT for paging
* @return int
*/
protected function getMaxResults() {
return max( parent::getMaxResults(), 60000 );
}
}
/** @deprecated class alias since 1.41 */
class_alias( SpecialLinkSearch::class, 'SpecialLinkSearch' );

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text/x-php
Expires
Sun, Oct 4, 00:09 (2 w, 4 d ago)
Storage Engine
local-disk
Storage Format
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Storage Handle
4d/bc/67e3d537de1816d3a53135e23fac
Default Alt Text
SpecialLinkSearch.php (7 KB)

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