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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch; |
| 4 | |
| 5 | use CirrusSearch\Extra\MultiList\MultiListBuilder; |
| 6 | use CirrusSearch\Parser\NamespacePrefixParser; |
| 7 | use CirrusSearch\Parser\QueryStringRegex\SearchQueryParseException; |
| 8 | use CirrusSearch\Profile\ContextualProfileOverride; |
| 9 | use CirrusSearch\Profile\SearchProfileService; |
| 10 | use CirrusSearch\Search\ArrayCirrusSearchResult; |
| 11 | use CirrusSearch\Search\CirrusSearchIndexFieldFactory; |
| 12 | use CirrusSearch\Search\CirrusSearchResultSet; |
| 13 | use CirrusSearch\Search\FancyTitleResultsType; |
| 14 | use CirrusSearch\Search\SearchMetricsProvider; |
| 15 | use CirrusSearch\Search\SearchQuery; |
| 16 | use CirrusSearch\Search\SearchQueryBuilder; |
| 17 | use CirrusSearch\Search\TitleHelper; |
| 18 | use CirrusSearch\Search\TitleResultsType; |
| 19 | use ISearchResultSet; |
| 20 | use MediaWiki\Context\RequestContext; |
| 21 | use MediaWiki\MediaWikiServices; |
| 22 | use MediaWiki\Page\ProperPageIdentity; |
| 23 | use MediaWiki\Parser\Sanitizer; |
| 24 | use MediaWiki\Request\WebRequest; |
| 25 | use MediaWiki\Status\Status; |
| 26 | use MediaWiki\Title\Title; |
| 27 | use MediaWiki\User\User; |
| 28 | use MediaWiki\WikiMap\WikiMap; |
| 29 | use SearchEngine; |
| 30 | use SearchIndexField; |
| 31 | use SearchSuggestionSet; |
| 32 | use Wikimedia\Assert\Assert; |
| 33 | |
| 34 | /** |
| 35 | * SearchEngine implementation for CirrusSearch. Delegates to |
| 36 | * CirrusSearchSearcher for searches and CirrusSearchUpdater for updates. Note |
| 37 | * that lots of search behavior is hooked in CirrusSearchHooks rather than |
| 38 | * overridden here. |
| 39 | * |
| 40 | * This program is free software; you can redistribute it and/or modify |
| 41 | * it under the terms of the GNU General Public License as published by |
| 42 | * the Free Software Foundation; either version 2 of the License, or |
| 43 | * (at your option) any later version. |
| 44 | * |
| 45 | * This program is distributed in the hope that it will be useful, |
| 46 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 47 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 48 | * GNU General Public License for more details. |
| 49 | * |
| 50 | * You should have received a copy of the GNU General Public License along |
| 51 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 52 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 53 | * http://www.gnu.org/copyleft/gpl.html |
| 54 | */ |
| 55 | class CirrusSearch extends SearchEngine { |
| 56 | |
| 57 | /** |
| 58 | * Special profile to instruct this class to use profile |
| 59 | * selection mechanism. |
| 60 | * This allows to defer profile selection to when we actually perform |
| 61 | * the search. The reason is that the list of possible profiles |
| 62 | * is returned by self::getProfiles so instead of assigning a default |
| 63 | * profile at this point we use this special profile. |
| 64 | */ |
| 65 | public const AUTOSELECT_PROFILE = 'engine_autoselect'; |
| 66 | |
| 67 | /** @const string name of the prefixsearch fallback profile */ |
| 68 | public const COMPLETION_PREFIX_FALLBACK_PROFILE = 'classic'; |
| 69 | |
| 70 | /** |
| 71 | * @const int Maximum title length that we'll check in prefix and keyword searches. |
| 72 | * Since titles can be 255 bytes in length we're setting this to 255 |
| 73 | * characters. |
| 74 | */ |
| 75 | public const MAX_TITLE_SEARCH = 255; |
| 76 | |
| 77 | /** |
| 78 | * Name of the feature to extract more fields during a fulltext search request. |
| 79 | * Expected value is a list of strings identifying the fields to extract out |
| 80 | * of the source document. |
| 81 | * @see SearchEngine::supports() and SearchEngine::setFeatureData() |
| 82 | */ |
| 83 | public const EXTRA_FIELDS_TO_EXTRACT = 'extra-fields-to-extract'; |
| 84 | |
| 85 | /** |
| 86 | * Name of the entry in the extension data array holding the extracted field |
| 87 | * requested using the EXTRA_FIELDS_TO_EXTRACT feature. |
| 88 | * @see \SearchResult::getExtensionData() |
| 89 | */ |
| 90 | private const EXTRA_FIELDS = ArrayCirrusSearchResult::EXTRA_FIELDS; |
| 91 | |
| 92 | /** |
| 93 | * @var array metrics about the last thing we searched sourced from the |
| 94 | * Searcher instance |
| 95 | */ |
| 96 | private $lastSearchMetrics = []; |
| 97 | |
| 98 | /** |
| 99 | * @var array additional metrics about the search sourced within this class |
| 100 | */ |
| 101 | private $extraSearchMetrics = []; |
| 102 | |
| 103 | /** |
| 104 | * @var Connection |
| 105 | */ |
| 106 | private $connection; |
| 107 | |
| 108 | /** |
| 109 | * Search configuration. |
| 110 | * @var SearchConfig immutable |
| 111 | */ |
| 112 | private $config; |
| 113 | |
| 114 | /** |
| 115 | * Current request. |
| 116 | * @var WebRequest |
| 117 | */ |
| 118 | private $request; |
| 119 | |
| 120 | /** |
| 121 | * @var RequestContext |
| 122 | */ |
| 123 | private $requestContext; |
| 124 | |
| 125 | /** |
| 126 | * @var CirrusSearchIndexFieldFactory |
| 127 | */ |
| 128 | private $searchIndexFieldFactory; |
| 129 | |
| 130 | /** |
| 131 | * @var CirrusDebugOptions |
| 132 | */ |
| 133 | private $debugOptions; |
| 134 | |
| 135 | /** |
| 136 | * @var NamespacePrefixParser |
| 137 | */ |
| 138 | private $namespacePrefixParser; |
| 139 | |
| 140 | /** |
| 141 | * @var InterwikiResolver |
| 142 | */ |
| 143 | private $interwikiResolver; |
| 144 | |
| 145 | /** |
| 146 | * @var TitleHelper |
| 147 | */ |
| 148 | private $titleHelper; |
| 149 | |
| 150 | /** |
| 151 | * @var CirrusSearchHookRunner|null |
| 152 | */ |
| 153 | private $cirrusSearchHookRunner; |
| 154 | |
| 155 | /** |
| 156 | * @param SearchConfig|null $config |
| 157 | * @param CirrusDebugOptions|null $debugOptions |
| 158 | * @param NamespacePrefixParser|null $namespacePrefixParser |
| 159 | * @param InterwikiResolver|null $interwikiResolver |
| 160 | * @param TitleHelper|null $titleHelper |
| 161 | */ |
| 162 | public function __construct( ?SearchConfig $config = null, |
| 163 | ?CirrusDebugOptions $debugOptions = null, |
| 164 | ?NamespacePrefixParser $namespacePrefixParser = null, |
| 165 | ?InterwikiResolver $interwikiResolver = null, ?TitleHelper $titleHelper = null |
| 166 | ) { |
| 167 | // Initialize UserTesting before we create a Connection |
| 168 | // This is useful to do tests across multiple clusters |
| 169 | UserTestingStatus::getInstance(); |
| 170 | $this->config = $config ?? MediaWikiServices::getInstance() |
| 171 | ->getConfigFactory() |
| 172 | ->makeConfig( 'CirrusSearch' ); |
| 173 | $this->connection = new Connection( $this->config ); |
| 174 | $this->requestContext = RequestContext::getMain(); |
| 175 | $this->request = $this->requestContext->getRequest(); |
| 176 | $this->searchIndexFieldFactory = new CirrusSearchIndexFieldFactory( $this->config ); |
| 177 | $this->namespacePrefixParser = $namespacePrefixParser ?: new class() implements NamespacePrefixParser { |
| 178 | public function parse( $query ) { |
| 179 | return CirrusSearch::parseNamespacePrefixes( $query, true, true ); |
| 180 | } |
| 181 | }; |
| 182 | $this->interwikiResolver = $interwikiResolver ?: MediaWikiServices::getInstance()->getService( InterwikiResolver::SERVICE ); |
| 183 | |
| 184 | // enable interwiki by default |
| 185 | $this->features['interwiki'] = true; |
| 186 | $this->features['show-multimedia-search-results'] = $this->config->get( 'CirrusSearchCrossProjectShowMultimedia' ) == true; |
| 187 | $this->debugOptions = $debugOptions ?? CirrusDebugOptions::fromRequest( $this->request ); |
| 188 | $this->titleHelper = $titleHelper ?: new TitleHelper( WikiMap::getCurrentWikiId(), $interwikiResolver, |
| 189 | static function ( $v ) { |
| 190 | return Sanitizer::escapeIdForLink( $v ); |
| 191 | } |
| 192 | ); |
| 193 | $extraFieldsInSearchResults = $this->config->get( 'CirrusSearchExtraFieldsInSearchResults' ); |
| 194 | if ( $extraFieldsInSearchResults ) { |
| 195 | $this->features[ self::EXTRA_FIELDS_TO_EXTRACT ] = $extraFieldsInSearchResults; |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | public function setConnection( Connection $connection ) { |
| 200 | $this->connection = $connection; |
| 201 | } |
| 202 | |
| 203 | /** |
| 204 | * @return Connection |
| 205 | */ |
| 206 | public function getConnection() { |
| 207 | return $this->connection; |
| 208 | } |
| 209 | |
| 210 | /** |
| 211 | * Get search config |
| 212 | * @return SearchConfig |
| 213 | */ |
| 214 | public function getConfig() { |
| 215 | return $this->config; |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * Override supports to shut off updates to Cirrus via the SearchEngine infrastructure. Page |
| 220 | * updates and additions are chained on the end of the links update job. Deletes are noticed |
| 221 | * via the ArticleDeleteComplete hook. |
| 222 | * @param string $feature feature name |
| 223 | * @return bool is this feature supported? |
| 224 | */ |
| 225 | public function supports( $feature ) { |
| 226 | switch ( $feature ) { |
| 227 | case 'search-update': |
| 228 | case 'list-redirects': |
| 229 | return false; |
| 230 | case self::FT_QUERY_INDEP_PROFILE_TYPE: |
| 231 | case self::EXTRA_FIELDS_TO_EXTRACT: |
| 232 | return true; |
| 233 | default: |
| 234 | return parent::supports( $feature ); |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | /** |
| 239 | * Overridden to delegate prefix searching to Searcher. |
| 240 | * @param string $term text to search |
| 241 | * @return Status Value is either SearchResultSet, or null on error. |
| 242 | */ |
| 243 | protected function doSearchText( $term ) { |
| 244 | try { |
| 245 | $builder = SearchQueryBuilder::newFTSearchQueryBuilder( $this->config, |
| 246 | $term, $this->namespacePrefixParser, $this->getCirrusSearchHookRunner() ); |
| 247 | } catch ( SearchQueryParseException $e ) { |
| 248 | return $e->asStatus(); |
| 249 | } |
| 250 | |
| 251 | $builder->setDebugOptions( $this->debugOptions ) |
| 252 | ->setInitialNamespaces( $this->namespaces ) |
| 253 | ->setLimit( $this->limit ) |
| 254 | ->setOffset( $this->offset ) |
| 255 | ->setSort( $this->getSort() ) |
| 256 | ->setRandomSeed( $this->getFeatureData( 'random_seed' ) ) |
| 257 | ->setExtraIndicesSearch( true ) |
| 258 | ->setCrossProjectSearch( $this->isFeatureEnabled( 'interwiki' ) ) |
| 259 | ->setWithDYMSuggestion( $this->showSuggestion ) |
| 260 | ->setAllowRewrite( $this->isFeatureEnabled( 'rewrite' ) ) |
| 261 | ->addProfileContextParameter( ContextualProfileOverride::LANGUAGE, |
| 262 | $this->requestContext->getLanguage()->getCode() ) |
| 263 | ->setExtraFieldsToExtract( $this->features[self::EXTRA_FIELDS_TO_EXTRACT] ?? [] ) |
| 264 | ->setProvideAllSnippets( !empty( $this->features['snippets'] ) ); |
| 265 | |
| 266 | if ( $this->prefix !== '' ) { |
| 267 | $builder->addContextualFilter( 'prefix', |
| 268 | \CirrusSearch\Query\PrefixFeature::asContextualFilter( $this->prefix ) ); |
| 269 | } |
| 270 | |
| 271 | $profile = $this->extractProfileFromFeatureData( SearchEngine::FT_QUERY_INDEP_PROFILE_TYPE ); |
| 272 | if ( $profile !== null ) { |
| 273 | $builder->addForcedProfile( SearchProfileService::RESCORE, $profile ); |
| 274 | } |
| 275 | |
| 276 | $query = $builder->build(); |
| 277 | |
| 278 | $status = $this->searchTextReal( $query ); |
| 279 | $matches = $status->getValue(); |
| 280 | if ( $matches instanceof CirrusSearchResultSet ) { |
| 281 | ElasticsearchIntermediary::setResultPages( [ $matches ] ); |
| 282 | } |
| 283 | if ( $matches instanceof SearchMetricsProvider ) { |
| 284 | $this->extraSearchMetrics += $status->getValue()->getMetrics(); |
| 285 | } |
| 286 | |
| 287 | return $status; |
| 288 | } |
| 289 | |
| 290 | /** |
| 291 | * @param string $feature |
| 292 | * @return bool |
| 293 | */ |
| 294 | private function isFeatureEnabled( $feature ) { |
| 295 | return isset( $this->features[$feature] ) && $this->features[$feature]; |
| 296 | } |
| 297 | |
| 298 | /** |
| 299 | * Do the hard part of the searching - actual Searcher invocation |
| 300 | * @param SearchQuery $query |
| 301 | * @return Status |
| 302 | */ |
| 303 | protected function searchTextReal( SearchQuery $query ) { |
| 304 | $searcher = $this->makeSearcher( $query->getSearchConfig() ); |
| 305 | $status = $searcher->search( $query ); |
| 306 | $this->lastSearchMetrics = $searcher->getSearchMetrics(); |
| 307 | if ( !$status->isOK() ) { |
| 308 | return $status; |
| 309 | } |
| 310 | |
| 311 | $result = $status->getValue(); |
| 312 | |
| 313 | // Add interwiki results, if we have a sane result |
| 314 | // Note that we have no way of sending warning back to the user. In this case all warnings |
| 315 | // are logged when they are added to the status object so we just ignore them here.... |
| 316 | // TODO: move this to the Searcher class and get rid of InterwikiSearcher |
| 317 | // there are no reasons we can't do this in a single msearch request. |
| 318 | if ( $query->getCrossSearchStrategy()->isCrossProjectSearchSupported() && |
| 319 | $searcher->getSearchContext()->areResultsPossible() && |
| 320 | ( $this->debugOptions->isReturnRaw() || method_exists( $result, 'addInterwikiResults' ) ) |
| 321 | ) { |
| 322 | $iwSearch = new InterwikiSearcher( $this->connection, $query->getSearchConfig(), $this->namespaces, null, |
| 323 | $this->debugOptions, $this->namespacePrefixParser, $this->interwikiResolver, $this->titleHelper, |
| 324 | $this->getCirrusSearchHookRunner() ); |
| 325 | $interwikiResults = $iwSearch->getInterwikiResults( $query ); |
| 326 | if ( $interwikiResults->isOK() && $interwikiResults->getValue() !== [] ) { |
| 327 | foreach ( $interwikiResults->getValue() as $interwiki => $interwikiResult ) { |
| 328 | if ( $this->debugOptions->isReturnRaw() ) { |
| 329 | $result[$interwiki] = $interwikiResult; |
| 330 | } elseif ( $interwikiResult && $interwikiResult->numRows() > 0 ) { |
| 331 | $result->addInterwikiResults( |
| 332 | $interwikiResult, ISearchResultSet::SECONDARY_RESULTS, $interwiki |
| 333 | ); |
| 334 | } |
| 335 | } |
| 336 | } |
| 337 | } |
| 338 | |
| 339 | if ( $this->debugOptions->isReturnRaw() ) { |
| 340 | $status->setResult( true, |
| 341 | $searcher->processRawReturn( $result, $this->request ) ); |
| 342 | } |
| 343 | |
| 344 | return $status; |
| 345 | } |
| 346 | |
| 347 | /** |
| 348 | * Look for suggestions using ES completion suggester. |
| 349 | * @param string $search Search string |
| 350 | * @param string[]|null $variants Search term variants |
| 351 | * @param SearchConfig $config search configuration |
| 352 | * @return SearchSuggestionSet Set of suggested names |
| 353 | */ |
| 354 | protected function getSuggestions( $search, $variants, SearchConfig $config ) { |
| 355 | // Inspect features to check if the user selected a specific profile |
| 356 | $profile = $this->extractProfileFromFeatureData( SearchEngine::COMPLETION_PROFILE_TYPE ); |
| 357 | |
| 358 | $clusterOverride = $config->getElement( 'CirrusSearchClusterOverrides', 'completion' ); |
| 359 | if ( $clusterOverride !== null ) { |
| 360 | $connection = Connection::getPool( $config, $clusterOverride ); |
| 361 | } else { |
| 362 | $connection = $this->connection; |
| 363 | } |
| 364 | $suggester = new CompletionSuggester( $connection, $this->limit, |
| 365 | $this->offset, $config, $this->namespaces, null, |
| 366 | false, $profile, $this->debugOptions ); |
| 367 | |
| 368 | $response = $suggester->suggest( $search, $variants ); |
| 369 | |
| 370 | if ( !$response->isOK() ) { |
| 371 | return SearchSuggestionSet::emptySuggestionSet(); |
| 372 | } |
| 373 | |
| 374 | $result = $response->getValue(); |
| 375 | |
| 376 | if ( $this->debugOptions->isReturnRaw() ) { |
| 377 | Util::processSearchRawReturn( $result, $this->request, $this->debugOptions ); |
| 378 | } |
| 379 | |
| 380 | // Errors will be logged, let's try the exact db match |
| 381 | return $result; |
| 382 | } |
| 383 | |
| 384 | /** |
| 385 | * Get the sort of sorts we allow |
| 386 | * @return string[] |
| 387 | */ |
| 388 | public function getValidSorts() { |
| 389 | $sorts = [ |
| 390 | 'relevance', 'just_match', 'none', |
| 391 | 'incoming_links_asc', 'incoming_links_desc', |
| 392 | 'last_edit_asc', 'last_edit_desc', |
| 393 | 'create_timestamp_asc', 'create_timestamp_desc', |
| 394 | 'random', 'user_random', |
| 395 | ]; |
| 396 | |
| 397 | if ( $this->config->getElement( 'CirrusSearchNaturalTitleSort', 'use' ) ) { |
| 398 | $sorts[] = 'title_natural_asc'; |
| 399 | $sorts[] = 'title_natural_desc'; |
| 400 | } |
| 401 | |
| 402 | return $sorts; |
| 403 | } |
| 404 | |
| 405 | /** |
| 406 | * Get the metrics for the last search we performed. Null if we haven't done any. |
| 407 | * @return array |
| 408 | */ |
| 409 | public function getLastSearchMetrics() { |
| 410 | return $this->lastSearchMetrics + $this->extraSearchMetrics; |
| 411 | } |
| 412 | |
| 413 | /** |
| 414 | * Perform a completion search. |
| 415 | * Does not resolve namespaces and does not check variants. |
| 416 | * We use parent search for: |
| 417 | * - Special: namespace |
| 418 | * We use old prefix search for: |
| 419 | * - Suggester not enabled |
| 420 | * - |
| 421 | * @param string $search |
| 422 | * @return SearchSuggestionSet |
| 423 | */ |
| 424 | protected function completionSearchBackend( $search ) { |
| 425 | if ( in_array( NS_SPECIAL, $this->namespaces ) ) { |
| 426 | // delegate special search to parent |
| 427 | return parent::completionSearchBackend( $search ); |
| 428 | } |
| 429 | |
| 430 | // Not really useful, mostly for testing purpose |
| 431 | $variants = $this->debugOptions->getCirrusCompletionVariant(); |
| 432 | if ( !$variants ) { |
| 433 | $converter = MediaWikiServices::getInstance()->getLanguageConverterFactory()->getLanguageConverter(); |
| 434 | $variants = $converter->autoConvertToAllVariants( $search ); |
| 435 | } elseif ( count( $variants ) > 3 ) { |
| 436 | // We should not allow too many variants |
| 437 | $variants = array_slice( $variants, 0, 3 ); |
| 438 | } |
| 439 | |
| 440 | if ( !$this->config->isCompletionSuggesterEnabled() ) { |
| 441 | // Completion suggester is not enabled, fallback to |
| 442 | // default implementation |
| 443 | return $this->prefixSearch( $search, $variants ); |
| 444 | } |
| 445 | |
| 446 | // the completion suggester is only worth a try if NS_MAIN is requested |
| 447 | if ( !in_array( NS_MAIN, $this->namespaces ) ) { |
| 448 | return $this->prefixSearch( $search, $variants ); |
| 449 | } |
| 450 | |
| 451 | $profile = $this->extractProfileFromFeatureData( SearchEngine::COMPLETION_PROFILE_TYPE ); |
| 452 | if ( $profile === null ) { |
| 453 | // Need to fetch the name to fallback to prefix (not ideal) |
| 454 | // We should probably refactor this to have a single code path for prefix and completion suggester. |
| 455 | $profile = $this->config->getProfileService() |
| 456 | ->getProfileName( SearchProfileService::COMPLETION, SearchProfileService::CONTEXT_DEFAULT ); |
| 457 | } |
| 458 | if ( $profile === self::COMPLETION_PREFIX_FALLBACK_PROFILE ) { |
| 459 | // Fallback to prefixsearch if the classic profile was selected. |
| 460 | return $this->prefixSearch( $search, $variants ); |
| 461 | } |
| 462 | |
| 463 | return $this->getSuggestions( $search, $variants, $this->config ); |
| 464 | } |
| 465 | |
| 466 | /** |
| 467 | * Override variants function because we always do variants |
| 468 | * in the backend. |
| 469 | * @see SearchEngine::completionSearchWithVariants() |
| 470 | * @param string $search |
| 471 | * @return SearchSuggestionSet |
| 472 | */ |
| 473 | public function completionSearchWithVariants( $search ) { |
| 474 | return $this->completionSearch( $search ); |
| 475 | } |
| 476 | |
| 477 | /** |
| 478 | * Older prefix search. |
| 479 | * @param string $search search text |
| 480 | * @param string[] $variants |
| 481 | * @return SearchSuggestionSet |
| 482 | */ |
| 483 | protected function prefixSearch( $search, $variants ) { |
| 484 | $searcher = $this->makeSearcher(); |
| 485 | |
| 486 | if ( $search ) { |
| 487 | $searcher->setResultsType( new FancyTitleResultsType( 'prefix' ) ); |
| 488 | } else { |
| 489 | // Empty searches always find the title. |
| 490 | $searcher->setResultsType( new TitleResultsType() ); |
| 491 | } |
| 492 | |
| 493 | $status = $searcher->prefixSearch( $search, $variants ); |
| 494 | |
| 495 | // There is no way to send errors or warnings back to the caller here so we have to make do with |
| 496 | // only sending results back if there are results and relying on the logging done at the status |
| 497 | // construction site to log errors. |
| 498 | if ( $status->isOK() ) { |
| 499 | if ( $this->debugOptions->isReturnRaw() ) { |
| 500 | Util::processSearchRawReturn( $status->getValue(), $this->request, |
| 501 | $this->debugOptions ); |
| 502 | } |
| 503 | if ( !$search ) { |
| 504 | // No need to unpack the simple title matches from non-fancy TitleResultsType |
| 505 | return SearchSuggestionSet::fromTitles( $status->getValue() ); |
| 506 | } |
| 507 | $results = array_filter( array_map( |
| 508 | [ FancyTitleResultsType::class, 'chooseBestTitleOrRedirect' ], |
| 509 | $status->getValue() ) ); |
| 510 | return SearchSuggestionSet::fromTitles( $results ); |
| 511 | } |
| 512 | |
| 513 | return SearchSuggestionSet::emptySuggestionSet(); |
| 514 | } |
| 515 | |
| 516 | /** |
| 517 | * @param string $profileType |
| 518 | * @param User|null $user |
| 519 | * @return array|null |
| 520 | * @see SearchEngine::getProfiles() |
| 521 | */ |
| 522 | public function getProfiles( $profileType, ?User $user = null ) { |
| 523 | $profileService = $this->config->getProfileService(); |
| 524 | $serviceProfileType = null; |
| 525 | switch ( $profileType ) { |
| 526 | case SearchEngine::COMPLETION_PROFILE_TYPE: |
| 527 | if ( $this->config->isCompletionSuggesterEnabled() ) { |
| 528 | $serviceProfileType = SearchProfileService::COMPLETION; |
| 529 | } |
| 530 | break; |
| 531 | case SearchEngine::FT_QUERY_INDEP_PROFILE_TYPE: |
| 532 | $serviceProfileType = SearchProfileService::RESCORE; |
| 533 | break; |
| 534 | } |
| 535 | |
| 536 | if ( $serviceProfileType === null ) { |
| 537 | return null; |
| 538 | } |
| 539 | |
| 540 | $allowedProfiles = $profileService->listExposedProfiles( $serviceProfileType ); |
| 541 | |
| 542 | $profiles = []; |
| 543 | foreach ( $allowedProfiles as $name => $profile ) { |
| 544 | // @todo: decide what to with profiles we declare |
| 545 | // in wmf-config with no i18n messages. |
| 546 | // Do we want to expose them anyway, or simply |
| 547 | // hide them but still allow Api to pass them to us. |
| 548 | // It may require a change in core since ApiBase is |
| 549 | // strict and won't allow unknown values to be set |
| 550 | // here. |
| 551 | $profiles[] = [ |
| 552 | 'name' => $name, |
| 553 | 'desc-message' => $profile['i18n_msg'] ?? null, |
| 554 | ]; |
| 555 | } |
| 556 | if ( $profiles !== [] ) { |
| 557 | $profiles[] = [ |
| 558 | 'name' => self::AUTOSELECT_PROFILE, |
| 559 | 'desc-message' => 'cirrussearch-autoselect-profile', |
| 560 | 'default' => true, |
| 561 | ]; |
| 562 | } |
| 563 | return $profiles; |
| 564 | } |
| 565 | |
| 566 | /** |
| 567 | * (public for testing purposes) |
| 568 | * @param string $profileType |
| 569 | * @return string|null the profile name set in SearchEngine::features |
| 570 | * null if none present or equal to self::AUTOSELECT_PROFILE |
| 571 | */ |
| 572 | public function extractProfileFromFeatureData( $profileType ) { |
| 573 | if ( isset( $this->features[$profileType] ) |
| 574 | && $this->features[$profileType] !== self::AUTOSELECT_PROFILE |
| 575 | ) { |
| 576 | return $this->features[$profileType]; |
| 577 | } |
| 578 | return null; |
| 579 | } |
| 580 | |
| 581 | /** |
| 582 | * Create a search field definition |
| 583 | * @param string $name |
| 584 | * @param string $type |
| 585 | * @return SearchIndexField |
| 586 | */ |
| 587 | public function makeSearchFieldMapping( $name, $type ): SearchIndexField { |
| 588 | return $this->searchIndexFieldFactory->makeSearchFieldMapping( $name, $type ); |
| 589 | } |
| 590 | |
| 591 | /** |
| 592 | * Perform a title search in the article archive. |
| 593 | * |
| 594 | * @param string $term Raw search term |
| 595 | * @return Status<Title[]> |
| 596 | */ |
| 597 | public function searchArchiveTitle( $term ) { |
| 598 | if ( !$this->config->get( 'CirrusSearchEnableArchive' ) ) { |
| 599 | return Status::newGood( [] ); |
| 600 | } |
| 601 | |
| 602 | $term = trim( $term ); |
| 603 | |
| 604 | if ( $term === '' ) { |
| 605 | return Status::newGood( [] ); |
| 606 | } |
| 607 | |
| 608 | $searcher = $this->makeSearcher(); |
| 609 | $status = $searcher->searchArchive( $term ); |
| 610 | if ( $status->isOK() && $searcher->isReturnRaw() ) { |
| 611 | $status->setResult( true, |
| 612 | $searcher->processRawReturn( $status->getValue(), $this->request ) ); |
| 613 | } |
| 614 | return $status; |
| 615 | } |
| 616 | |
| 617 | /** |
| 618 | * @deprecated update via {@link WeightedTagsUpdater} service |
| 619 | */ |
| 620 | public function updateWeightedTags( ProperPageIdentity $page, string $tagPrefix, $tagNames = null, $tagWeights = null ): void { |
| 621 | Assert::precondition( strpos( $tagPrefix, '/' ) === false, |
| 622 | "invalid tag prefix $tagPrefix: must not contain /" ); |
| 623 | |
| 624 | $this->getUpdater()->updateWeightedTags( |
| 625 | $page, |
| 626 | $tagPrefix, |
| 627 | MultiListBuilder::buildTagWeightsFromLegacyParameters( $tagNames, $tagWeights ) |
| 628 | ); |
| 629 | } |
| 630 | |
| 631 | /** |
| 632 | * @deprecated update via {@link WeightedTagsUpdater} service |
| 633 | */ |
| 634 | public function resetWeightedTags( ProperPageIdentity $page, string $tagPrefix ): void { |
| 635 | $this->getUpdater()->resetWeightedTags( $page, [ $tagPrefix ] ); |
| 636 | } |
| 637 | |
| 638 | /** |
| 639 | * Helper method to facilitate mocking during tests. |
| 640 | * @return Updater |
| 641 | */ |
| 642 | protected function getUpdater(): Updater { |
| 643 | return new Updater( $this->connection ); |
| 644 | } |
| 645 | |
| 646 | /** |
| 647 | * @return Status Contains a single integer indicating the number |
| 648 | * of content words in the wiki |
| 649 | */ |
| 650 | public function countContentWords() { |
| 651 | $this->limit = 1; |
| 652 | $searcher = $this->makeSearcher(); |
| 653 | $status = $searcher->countContentWords(); |
| 654 | |
| 655 | if ( $status->isOK() && $searcher->isReturnRaw() ) { |
| 656 | $status->setResult( true, |
| 657 | $searcher->processRawReturn( $status->getValue(), $this->request ) ); |
| 658 | } |
| 659 | return $status; |
| 660 | } |
| 661 | |
| 662 | /** |
| 663 | * @param SearchConfig|null $config |
| 664 | * @return Searcher |
| 665 | */ |
| 666 | private function makeSearcher( ?SearchConfig $config = null ) { |
| 667 | return new Searcher( $this->connection, $this->offset, $this->limit, $config ?? $this->config, $this->namespaces, |
| 668 | null, false, $this->debugOptions, $this->namespacePrefixParser, $this->interwikiResolver, $this->titleHelper, |
| 669 | $this->getCirrusSearchHookRunner() ); |
| 670 | } |
| 671 | |
| 672 | private function getCirrusSearchHookRunner(): CirrusSearchHookRunner { |
| 673 | if ( $this->cirrusSearchHookRunner == null ) { |
| 674 | $this->cirrusSearchHookRunner = new CirrusSearchHookRunner( $this->getHookContainer() ); |
| 675 | } |
| 676 | return $this->cirrusSearchHookRunner; |
| 677 | } |
| 678 | } |