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| 1 | <?php |
| 2 | /** |
| 3 | * Implements Special:LinkSearch |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 18 | * http://www.gnu.org/copyleft/gpl.html |
| 19 | * |
| 20 | * @file |
| 21 | * @ingroup SpecialPage |
| 22 | * @author Brooke Vibber |
| 23 | */ |
| 24 | |
| 25 | namespace MediaWiki\Specials; |
| 26 | |
| 27 | use MediaWiki\Cache\LinkBatchFactory; |
| 28 | use MediaWiki\ExternalLinks\LinkFilter; |
| 29 | use MediaWiki\HTMLForm\HTMLForm; |
| 30 | use MediaWiki\Linker\Linker; |
| 31 | use MediaWiki\MainConfigNames; |
| 32 | use MediaWiki\Parser\Parser; |
| 33 | use MediaWiki\SpecialPage\QueryPage; |
| 34 | use MediaWiki\Title\TitleValue; |
| 35 | use MediaWiki\Utils\UrlUtils; |
| 36 | use Skin; |
| 37 | use stdClass; |
| 38 | use Wikimedia\Rdbms\IConnectionProvider; |
| 39 | use Wikimedia\Rdbms\IDatabase; |
| 40 | use Wikimedia\Rdbms\IResultWrapper; |
| 41 | |
| 42 | /** |
| 43 | * Special:LinkSearch to search the external-links table. |
| 44 | * @ingroup SpecialPage |
| 45 | */ |
| 46 | class SpecialLinkSearch extends QueryPage { |
| 47 | /** @var array|bool */ |
| 48 | private $mungedQuery = false; |
| 49 | /** @var string|null */ |
| 50 | private $mQuery; |
| 51 | /** @var int|null */ |
| 52 | private $mNs; |
| 53 | /** @var string|null */ |
| 54 | private $mProt; |
| 55 | |
| 56 | private UrlUtils $urlUtils; |
| 57 | |
| 58 | private function setParams( $params ) { |
| 59 | $this->mQuery = $params['query']; |
| 60 | $this->mNs = $params['namespace']; |
| 61 | $this->mProt = $params['protocol']; |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * @param IConnectionProvider $dbProvider |
| 66 | * @param LinkBatchFactory $linkBatchFactory |
| 67 | * @param UrlUtils $urlUtils |
| 68 | */ |
| 69 | public function __construct( |
| 70 | IConnectionProvider $dbProvider, |
| 71 | LinkBatchFactory $linkBatchFactory, |
| 72 | UrlUtils $urlUtils |
| 73 | ) { |
| 74 | parent::__construct( 'LinkSearch' ); |
| 75 | $this->setDatabaseProvider( $dbProvider ); |
| 76 | $this->setLinkBatchFactory( $linkBatchFactory ); |
| 77 | $this->urlUtils = $urlUtils; |
| 78 | } |
| 79 | |
| 80 | public function isCacheable() { |
| 81 | return false; |
| 82 | } |
| 83 | |
| 84 | public function execute( $par ) { |
| 85 | $this->setHeaders(); |
| 86 | $this->outputHeader(); |
| 87 | |
| 88 | $out = $this->getOutput(); |
| 89 | $out->setPreventClickjacking( false ); |
| 90 | |
| 91 | $request = $this->getRequest(); |
| 92 | $target = $request->getVal( 'target', $par ?? '' ); |
| 93 | $namespace = $request->getIntOrNull( 'namespace' ); |
| 94 | |
| 95 | $protocols_list = []; |
| 96 | foreach ( $this->getConfig()->get( MainConfigNames::UrlProtocols ) as $prot ) { |
| 97 | if ( $prot !== '//' ) { |
| 98 | $protocols_list[] = $prot; |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | $target2 = Parser::normalizeLinkUrl( $target ); |
| 103 | $protocol = null; |
| 104 | $bits = $this->urlUtils->parse( $target ); |
| 105 | if ( isset( $bits['scheme'] ) && isset( $bits['delimiter'] ) ) { |
| 106 | $protocol = $bits['scheme'] . $bits['delimiter']; |
| 107 | // Make sure UrlUtils::parse() didn't make some well-intended correction in the protocol |
| 108 | if ( str_starts_with( strtolower( $target ), strtolower( $protocol ) ) ) { |
| 109 | $target2 = substr( $target, strlen( $protocol ) ); |
| 110 | } else { |
| 111 | // If it did, let LinkFilter::makeLikeArray() handle this |
| 112 | $protocol = ''; |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | $out->addWikiMsg( |
| 117 | 'linksearch-text', |
| 118 | '<nowiki>' . $this->getLanguage()->commaList( $protocols_list ) . '</nowiki>', |
| 119 | count( $protocols_list ) |
| 120 | ); |
| 121 | $fields = [ |
| 122 | 'target' => [ |
| 123 | 'type' => 'text', |
| 124 | 'name' => 'target', |
| 125 | 'id' => 'target', |
| 126 | 'size' => 50, |
| 127 | 'label-message' => 'linksearch-pat', |
| 128 | 'default' => $target, |
| 129 | 'dir' => 'ltr', |
| 130 | ] |
| 131 | ]; |
| 132 | if ( !$this->getConfig()->get( MainConfigNames::MiserMode ) ) { |
| 133 | $fields += [ |
| 134 | 'namespace' => [ |
| 135 | 'type' => 'namespaceselect', |
| 136 | 'name' => 'namespace', |
| 137 | 'label-message' => 'linksearch-ns', |
| 138 | 'default' => $namespace, |
| 139 | 'id' => 'namespace', |
| 140 | 'all' => '', |
| 141 | 'cssclass' => 'namespaceselector', |
| 142 | ], |
| 143 | ]; |
| 144 | } |
| 145 | $htmlForm = HTMLForm::factory( 'ooui', $fields, $this->getContext() ); |
| 146 | $htmlForm->setSubmitTextMsg( 'linksearch-ok' ); |
| 147 | $htmlForm->setWrapperLegendMsg( 'linksearch' ); |
| 148 | $htmlForm->setTitle( $this->getPageTitle() ); |
| 149 | $htmlForm->setMethod( 'get' ); |
| 150 | $htmlForm->prepareForm()->displayForm( false ); |
| 151 | $this->addHelpLink( 'Help:Linksearch' ); |
| 152 | |
| 153 | if ( $target != '' ) { |
| 154 | $this->setParams( [ |
| 155 | 'query' => $target2, |
| 156 | 'namespace' => $namespace, |
| 157 | 'protocol' => $protocol ] ); |
| 158 | parent::execute( $par ); |
| 159 | if ( $this->mungedQuery === false ) { |
| 160 | $out->addWikiMsg( 'linksearch-error' ); |
| 161 | } |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | /** |
| 166 | * Disable RSS/Atom feeds |
| 167 | * @return bool |
| 168 | */ |
| 169 | public function isSyndicated() { |
| 170 | return false; |
| 171 | } |
| 172 | |
| 173 | protected function linkParameters() { |
| 174 | $params = []; |
| 175 | $params['target'] = $this->mProt . $this->mQuery; |
| 176 | if ( $this->mNs !== null && !$this->getConfig()->get( MainConfigNames::MiserMode ) ) { |
| 177 | $params['namespace'] = $this->mNs; |
| 178 | } |
| 179 | |
| 180 | return $params; |
| 181 | } |
| 182 | |
| 183 | public function getQueryInfo() { |
| 184 | $dbr = $this->getDatabaseProvider()->getReplicaDatabase(); |
| 185 | |
| 186 | $field = 'el_to_domain_index'; |
| 187 | $extraFields = [ |
| 188 | 'urldomain' => 'el_to_domain_index', |
| 189 | 'urlpath' => 'el_to_path' |
| 190 | ]; |
| 191 | if ( $this->mQuery === '*' && $this->mProt !== '' ) { |
| 192 | $this->mungedQuery = [ |
| 193 | $field . $dbr->buildLike( $this->mProt, $dbr->anyString() ), |
| 194 | ]; |
| 195 | } else { |
| 196 | $this->mungedQuery = LinkFilter::getQueryConditions( $this->mQuery, [ |
| 197 | 'protocol' => $this->mProt, |
| 198 | 'oneWildcard' => true, |
| 199 | 'db' => $dbr |
| 200 | ] ); |
| 201 | if ( $this->mungedQuery === false ) { |
| 202 | // Invalid query; return no results |
| 203 | return [ 'tables' => 'page', 'fields' => 'page_id', 'conds' => '0=1' ]; |
| 204 | } |
| 205 | } |
| 206 | $orderBy = [ 'el_id' ]; |
| 207 | |
| 208 | $retval = [ |
| 209 | 'tables' => [ 'page', 'externallinks' ], |
| 210 | 'fields' => array_merge( [ |
| 211 | 'namespace' => 'page_namespace', |
| 212 | 'title' => 'page_title', |
| 213 | ], $extraFields ), |
| 214 | 'conds' => array_merge( |
| 215 | [ |
| 216 | 'page_id = el_from', |
| 217 | ], |
| 218 | $this->mungedQuery |
| 219 | ), |
| 220 | 'options' => [ 'ORDER BY' => $orderBy ] |
| 221 | ]; |
| 222 | |
| 223 | if ( $this->mNs !== null && !$this->getConfig()->get( MainConfigNames::MiserMode ) ) { |
| 224 | $retval['conds']['page_namespace'] = $this->mNs; |
| 225 | } |
| 226 | |
| 227 | return $retval; |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * Pre-fill the link cache |
| 232 | * |
| 233 | * @param IDatabase $db |
| 234 | * @param IResultWrapper $res |
| 235 | */ |
| 236 | public function preprocessResults( $db, $res ) { |
| 237 | $this->executeLBFromResultWrapper( $res ); |
| 238 | } |
| 239 | |
| 240 | /** |
| 241 | * @param Skin $skin |
| 242 | * @param stdClass $result Result row |
| 243 | * @return string |
| 244 | */ |
| 245 | public function formatResult( $skin, $result ) { |
| 246 | $title = new TitleValue( (int)$result->namespace, $result->title ); |
| 247 | $pageLink = $this->getLinkRenderer()->makeLink( $title ); |
| 248 | $url = LinkFilter::reverseIndexes( $result->urldomain ) . $result->urlpath; |
| 249 | |
| 250 | $urlLink = Linker::makeExternalLink( $url, $url ); |
| 251 | |
| 252 | return $this->msg( 'linksearch-line' )->rawParams( $urlLink, $pageLink )->escaped(); |
| 253 | } |
| 254 | |
| 255 | /** |
| 256 | * Override to squash the ORDER BY. |
| 257 | * Not much point in descending order here. |
| 258 | * @return array |
| 259 | */ |
| 260 | protected function getOrderFields() { |
| 261 | return []; |
| 262 | } |
| 263 | |
| 264 | protected function getGroupName() { |
| 265 | return 'pages'; |
| 266 | } |
| 267 | |
| 268 | /** |
| 269 | * enwiki complained about low limits on this special page |
| 270 | * |
| 271 | * @see T130058 |
| 272 | * @todo FIXME This special page should not use LIMIT for paging |
| 273 | * @return int |
| 274 | */ |
| 275 | protected function getMaxResults() { |
| 276 | return max( parent::getMaxResults(), 60000 ); |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | /** @deprecated class alias since 1.41 */ |
| 281 | class_alias( SpecialLinkSearch::class, 'SpecialLinkSearch' ); |