mQuery = $params['query']; $this->mNs = $params['namespace']; $this->mProt = $params['protocol']; } function __construct( $name = 'LinkSearch' ) { parent::__construct( $name ); } function isCacheable() { return false; } function execute( $par ) { global $wgUrlProtocols, $wgMiserMode, $wgScript; $this->setHeaders(); $this->outputHeader(); $out = $this->getOutput(); $out->allowClickjacking(); $request = $this->getRequest(); $target = $request->getVal( 'target', $par ); $namespace = $request->getIntorNull( 'namespace', null ); $protocols_list = array(); foreach ( $wgUrlProtocols as $prot ) { if ( $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 ( $protocol != '' && !in_array( $protocol, $protocols_list ) ) { // unsupported protocol, show original search request $target2 = $target; $protocol = ''; } $out->addWikiMsg( 'linksearch-text', '' . $this->getLanguage()->commaList( $protocols_list ) . '', count( $protocols_list ) ); $s = Html::openElement( 'form', array( 'id' => 'mw-linksearch-form', 'method' => 'get', 'action' => $wgScript ) ) . "\n" . Html::hidden( 'title', $this->getTitle()->getPrefixedDBkey() ) . "\n" . Html::openElement( 'fieldset' ) . "\n" . Html::element( 'legend', array(), $this->msg( 'linksearch' )->text() ) . "\n" . Xml::inputLabel( $this->msg( 'linksearch-pat' )->text(), 'target', 'target', 50, $target ) . "\n"; if ( !$wgMiserMode ) { $s .= Html::namespaceSelector( array( 'selected' => $namespace, 'all' => '', 'label' => $this->msg( 'linksearch-ns' )->text() ), array( 'name' => 'namespace', 'id' => 'namespace', 'class' => 'namespaceselector', ) ); } $s .= Xml::submitButton( $this->msg( 'linksearch-ok' )->text() ) . "\n" . Html::closeElement( 'fieldset' ) . "\n" . Html::closeElement( 'form' ) . "\n"; $out->addHTML( $s ); if ( $target != '' ) { $this->setParams( array( 'query' => $target2, 'namespace' => $namespace, 'protocol' => $protocol ) ); parent::execute( $par ); if ( $this->mMungedQuery === 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 * @param string $prot * @return array */ static function mungeQuery( $query, $prot ) { $field = 'el_index'; $rv = LinkFilter::makeLikeArray( $query, $prot ); if ( $rv === false ) { // LinkFilter doesn't handle wildcard in IP, so we'll have to munge here. $pattern = '/^(:?[0-9]{1,3}\.)+\*\s*$|^(:?[0-9]{1,3}\.){3}[0-9]{1,3}:[0-9]*\*\s*$/'; if ( preg_match( $pattern, $query ) ) { $dbr = wfGetDB( DB_SLAVE ); $rv = array( $prot . rtrim( $query, " \t*" ), $dbr->anyString() ); $field = 'el_to'; } } return array( $rv, $field ); } function linkParameters() { global $wgMiserMode; $params = array(); $params['target'] = $this->mProt . $this->mQuery; if ( isset( $this->mNs ) && !$wgMiserMode ) { $params['namespace'] = $this->mNs; } return $params; } function getQueryInfo() { global $wgMiserMode; $dbr = wfGetDB( DB_SLAVE ); // strip everything past first wildcard, so that // index-based-only lookup would be done list( $this->mMungedQuery, $clause ) = self::mungeQuery( $this->mQuery, $this->mProt ); if ( $this->mMungedQuery === false ) { // Invalid query; return no results return array( 'tables' => 'page', 'fields' => 'page_id', 'conds' => '0=1' ); } $stripped = LinkFilter::keepOneWildcard( $this->mMungedQuery ); $like = $dbr->buildLike( $stripped ); $retval = array( 'tables' => array( 'page', 'externallinks' ), 'fields' => array( 'namespace' => 'page_namespace', 'title' => 'page_title', 'value' => 'el_index', 'url' => 'el_to' ), 'conds' => array( 'page_id = el_from', "$clause $like" ), 'options' => array( 'USE INDEX' => $clause ) ); if ( isset( $this->mNs ) && !$wgMiserMode ) { $retval['conds']['page_namespace'] = $this->mNs; } return $retval; } /** * @param Skin $skin * @param object $result Result row * @return string */ function formatResult( $skin, $result ) { $title = Title::makeTitle( $result->namespace, $result->title ); $url = $result->url; $pageLink = Linker::linkKnown( $title ); $urlLink = Linker::makeExternalLink( $url, $url ); return $this->msg( 'linksearch-line' )->rawParams( $urlLink, $pageLink )->escaped(); } /** * Override to check query validity. */ function doQuery( $offset = false, $limit = false ) { list( $this->mMungedQuery, ) = LinkSearchPage::mungeQuery( $this->mQuery, $this->mProt ); if ( $this->mMungedQuery === false ) { $this->getOutput()->addWikiMsg( 'linksearch-error' ); } else { // For debugging // Generates invalid xhtml with patterns that contain -- //$this->getOutput()->addHTML( "\n\n" ); parent::doQuery( $offset, $limit ); } } /** * Override to squash the ORDER BY. * 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 array(); } protected function getGroupName() { return 'redirects'; } }