* @ingroup SpecialPage
* @author Brion Vibber
*/
-
-/**
- * Special:LinkSearch to search the external-links table.
- */
-function wfSpecialLinkSearch( $par ) {
-
- list( $limit, $offset ) = wfCheckLimits();
- global $wgOut, $wgUrlProtocols, $wgMiserMode, $wgLang;
- $target = $GLOBALS['wgRequest']->getVal( 'target', $par );
- $namespace = $GLOBALS['wgRequest']->getIntorNull( 'namespace', null );
-
- $protocols_list[] = '';
- foreach( $wgUrlProtocols as $prot ) {
- $protocols_list[] = $prot;
- }
-
- $target2 = $target;
- $protocol = '';
- $pr_sl = strpos($target2, '//' );
- $pr_cl = strpos($target2, ':' );
- if ( $pr_sl ) {
- // For protocols with '//'
- $protocol = substr( $target2, 0 , $pr_sl+2 );
- $target2 = substr( $target2, $pr_sl+2 );
- } elseif ( !$pr_sl && $pr_cl ) {
- // For protocols without '//' like 'mailto:'
- $protocol = substr( $target2, 0 , $pr_cl+1 );
- $target2 = substr( $target2, $pr_cl+1 );
- } elseif ( $protocol == '' && $target2 != '' ) {
- // default
- $protocol = 'http://';
- }
- if ( !in_array( $protocol, $protocols_list ) ) {
- // unsupported protocol, show original search request
- $target2 = $target;
- $protocol = '';
- }
-
- $self = Title::makeTitle( NS_SPECIAL, 'Linksearch' );
-
- $wgOut->allowClickjacking();
- $wgOut->addWikiMsg( 'linksearch-text', '<nowiki>' . $wgLang->commaList( $wgUrlProtocols ) . '</nowiki>' );
- $s = Xml::openElement( 'form', array( 'id' => 'mw-linksearch-form', 'method' => 'get', 'action' => $GLOBALS['wgScript'] ) ) .
- Html::hidden( 'title', $self->getPrefixedDbKey() ) .
- '<fieldset>' .
- Xml::element( 'legend', array(), wfMsg( 'linksearch' ) ) .
- Xml::inputLabel( wfMsg( 'linksearch-pat' ), 'target', 'target', 50, $target ) . ' ';
- if ( !$wgMiserMode ) {
- $s .= Xml::label( wfMsg( 'linksearch-ns' ), 'namespace' ) . ' ' .
- Xml::namespaceSelector( $namespace, '' );
- }
- $s .= Xml::submitButton( wfMsg( 'linksearch-ok' ) ) .
- '</fieldset>' .
- Xml::closeElement( 'form' );
- $wgOut->addHTML( $s );
-
- if( $target != '' ) {
- $searcher = new LinkSearchPage;
- $searcher->setParams( array(
- 'query' => $target2,
- 'namespace' => $namespace,
- 'protocol' => $protocol ) );
- $searcher->doQuery( $offset, $limit );
- }
-}
+use Wikimedia\Rdbms\ResultWrapper;
+use Wikimedia\Rdbms\IDatabase;
/**
+ * Special:LinkSearch to search the external-links table.
* @ingroup SpecialPage
*/
class LinkSearchPage extends QueryPage {
+ /** @var array|bool */
+ private $mungedQuery = false;
+
function setParams( $params ) {
$this->mQuery = $params['query'];
$this->mNs = $params['namespace'];
$this->mProt = $params['protocol'];
}
- function getName() {
- return 'LinkSearch';
+ function __construct( $name = 'LinkSearch' ) {
+ parent::__construct( $name );
+
+ // Since we don't control the constructor parameters, we can't inject services that way.
+ // Instead, we initialize services in the execute() method, and allow them to be overridden
+ // using the setServices() method.
+ }
+
+ function isCacheable() {
+ return false;
+ }
+
+ public function execute( $par ) {
+ $this->setHeaders();
+ $this->outputHeader();
+
+ $out = $this->getOutput();
+ $out->allowClickjacking();
+
+ $request = $this->getRequest();
+ $target = $request->getVal( 'target', $par );
+ $namespace = $request->getIntOrNull( 'namespace' );
+
+ $protocols_list = [];
+ foreach ( $this->getConfig()->get( 'UrlProtocols' ) as $prot ) {
+ if ( $prot !== '//' ) {
+ $protocols_list[] = $prot;
+ }
+ }
+
+ $target2 = $target;
+ // Get protocol, default is http://
+ $protocol = 'http://';
+ $bits = wfParseUrl( $target );
+ if ( isset( $bits['scheme'] ) && isset( $bits['delimiter'] ) ) {
+ $protocol = $bits['scheme'] . $bits['delimiter'];
+ // Make sure wfParseUrl() didn't make some well-intended correction in the
+ // protocol
+ if ( strcasecmp( $protocol, substr( $target, 0, strlen( $protocol ) ) ) === 0 ) {
+ $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( 'MiserMode' ) ) {
+ $fields += [
+ 'namespace' => [
+ 'type' => 'namespaceselect',
+ 'name' => 'namespace',
+ 'label-message' => 'linksearch-ns',
+ 'default' => $namespace,
+ 'id' => 'namespace',
+ 'all' => '',
+ 'cssclass' => 'namespaceselector',
+ ],
+ ];
+ }
+ $hiddenFields = [
+ 'title' => $this->getPageTitle()->getPrefixedDBkey(),
+ ];
+ $htmlForm = HTMLForm::factory( 'ooui', $fields, $this->getContext() );
+ $htmlForm->addHiddenFields( $hiddenFields );
+ $htmlForm->setSubmitTextMsg( 'linksearch-ok' );
+ $htmlForm->setWrapperLegendMsg( 'linksearch' );
+ $htmlForm->setAction( wfScript() );
+ $htmlForm->setMethod( 'get' );
+ $htmlForm->prepareForm()->displayForm( false );
+ $this->addHelpLink( 'Help:Linksearch' );
+
+ if ( $target != '' ) {
+ $this->setParams( [
+ 'query' => Parser::normalizeLinkUrl( $target2 ),
+ 'namespace' => $namespace,
+ 'protocol' => $protocol ] );
+ parent::execute( $par );
+ if ( $this->mungedQuery === false ) {
+ $out->addWikiMsg( 'linksearch-error' );
+ }
+ }
}
/**
* Disable RSS/Atom feeds
+ * @return bool
*/
function isSyndicated() {
return false;
/**
* Return an appropriately formatted LIKE query and the clause
+ *
+ * @param string $query Search pattern to search for
+ * @param string $prot Protocol, e.g. 'http://'
+ *
+ * @return array
*/
- static function mungeQuery( $query , $prot ) {
+ static function mungeQuery( $query, $prot ) {
$field = 'el_index';
- $rv = LinkFilter::makeLikeArray( $query , $prot );
- if ($rv === false) {
+ $dbr = wfGetDB( DB_REPLICA );
+
+ if ( $query === '*' && $prot !== '' ) {
+ // Allow queries like 'ftp://*' to find all ftp links
+ $rv = [ $prot, $dbr->anyString() ];
+ } else {
+ $rv = LinkFilter::makeLikeArray( $query, $prot );
+ }
+
+ if ( $rv === false ) {
// LinkFilter doesn't handle wildcard in IP, so we'll have to munge here.
- if (preg_match('/^(:?[0-9]{1,3}\.)+\*\s*$|^(:?[0-9]{1,3}\.){3}[0-9]{1,3}:[0-9]*\*\s*$/', $query)) {
- $dbr = wfGetDB( DB_SLAVE );
- $rv = array( $prot . rtrim($query, " \t*"), $dbr->anyString() );
+ $pattern = '/^(:?[0-9]{1,3}\.)+\*\s*$|^(:?[0-9]{1,3}\.){3}[0-9]{1,3}:[0-9]*\*\s*$/';
+ if ( preg_match( $pattern, $query ) ) {
+ $rv = [ $prot . rtrim( $query, " \t*" ), $dbr->anyString() ];
$field = 'el_to';
}
}
- return array( $rv, $field );
+
+ return [ $rv, $field ];
}
function linkParameters() {
- global $wgMiserMode;
- $params = array();
+ $params = [];
$params['target'] = $this->mProt . $this->mQuery;
- if( isset( $this->mNs ) && !$wgMiserMode ) {
+ if ( $this->mNs !== null && !$this->getConfig()->get( 'MiserMode' ) ) {
$params['namespace'] = $this->mNs;
}
+
return $params;
}
- function getSQL() {
- global $wgMiserMode;
- $dbr = wfGetDB( DB_SLAVE );
- $page = $dbr->tableName( 'page' );
- $externallinks = $dbr->tableName( 'externallinks' );
+ public function getQueryInfo() {
+ $dbr = wfGetDB( DB_REPLICA );
+ // strip everything past first wildcard, so that
+ // index-based-only lookup would be done
+ list( $this->mungedQuery, $clause ) = self::mungeQuery( $this->mQuery, $this->mProt );
+ if ( $this->mungedQuery === false ) {
+ // Invalid query; return no results
+ return [ 'tables' => 'page', 'fields' => 'page_id', 'conds' => '0=1' ];
+ }
- /* strip everything past first wildcard, so that index-based-only lookup would be done */
- list( $munged, $clause ) = self::mungeQuery( $this->mQuery, $this->mProt );
- $stripped = LinkFilter::keepOneWildcard( $munged );
+ $stripped = LinkFilter::keepOneWildcard( $this->mungedQuery );
$like = $dbr->buildLike( $stripped );
+ $retval = [
+ 'tables' => [ 'page', 'externallinks' ],
+ 'fields' => [
+ 'namespace' => 'page_namespace',
+ 'title' => 'page_title',
+ 'value' => 'el_index',
+ 'url' => 'el_to'
+ ],
+ 'conds' => [
+ 'page_id = el_from',
+ "$clause $like"
+ ],
+ 'options' => [ 'USE INDEX' => $clause ]
+ ];
- $encSQL = '';
- if ( isset ($this->mNs) && !$wgMiserMode )
- $encSQL = 'AND page_namespace=' . $dbr->addQuotes( $this->mNs );
-
- $use_index = $dbr->useIndexClause( $clause );
- return
- "SELECT
- page_namespace AS namespace,
- page_title AS title,
- el_index AS value,
- el_to AS url
- FROM
- $page,
- $externallinks $use_index
- WHERE
- page_id=el_from
- AND $clause $like
- $encSQL";
- }
+ if ( $this->mNs !== null && !$this->getConfig()->get( 'MiserMode' ) ) {
+ $retval['conds']['page_namespace'] = $this->mNs;
+ }
- function formatResult( $skin, $result ) {
- $title = Title::makeTitle( $result->namespace, $result->title );
- $url = $result->url;
- $pageLink = $skin->linkKnown( $title );
- $urlLink = $skin->makeExternalLink( $url, $url );
+ return $retval;
+ }
- return wfMsgHtml( 'linksearch-line', $urlLink, $pageLink );
+ /**
+ * Pre-fill the link cache
+ *
+ * @param IDatabase $db
+ * @param ResultWrapper $res
+ */
+ function preprocessResults( $db, $res ) {
+ $this->executeLBFromResultWrapper( $res );
}
/**
- * Override to check query validity.
+ * @param Skin $skin
+ * @param object $result Result row
+ * @return string
*/
- function doQuery( $offset, $limit, $shownavigation=true ) {
- global $wgOut;
- list( $this->mMungedQuery, ) = LinkSearchPage::mungeQuery( $this->mQuery, $this->mProt );
- if( $this->mMungedQuery === false ) {
- $wgOut->addWikiMsg( 'linksearch-error' );
- } else {
- // For debugging
- // Generates invalid xhtml with patterns that contain --
- //$wgOut->addHTML( "\n<!-- " . htmlspecialchars( $this->mMungedQuery ) . " -->\n" );
- parent::doQuery( $offset, $limit, $shownavigation );
- }
+ function formatResult( $skin, $result ) {
+ $title = new TitleValue( (int)$result->namespace, $result->title );
+ $pageLink = $this->getLinkRenderer()->makeLink( $title );
+
+ $url = $result->url;
+ $urlLink = Linker::makeExternalLink( $url, $url );
+
+ return $this->msg( 'linksearch-line' )->rawParams( $urlLink, $pageLink )->escaped();
}
/**
* We do a truncated index search, so the optimizer won't trust
* it as good enough for optimizing sort. The implicit ordering
* from the scan will usually do well enough for our needs.
+ * @return array
+ */
+ function getOrderFields() {
+ return [];
+ }
+
+ protected function getGroupName() {
+ return 'redirects';
+ }
+
+ /**
+ * enwiki complained about low limits on this special page
+ *
+ * @see T130058
+ * @todo FIXME This special page should not use LIMIT for paging
+ * @return int
*/
- function getOrder() {
- return '';
+ protected function getMaxResults() {
+ return max( parent::getMaxResults(), 60000 );
}
}
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