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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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