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1<?php
2
3namespace CirrusSearch\Profile;
4
5use CirrusSearch\CirrusSearchHookRunner;
6use CirrusSearch\InterwikiResolver;
7use CirrusSearch\SearchConfig;
8use MediaWiki\Registration\ExtensionRegistry;
9use MediaWiki\Request\WebRequest;
10use MediaWiki\User\Options\UserOptionsLookup;
11use MediaWiki\User\UserIdentity;
12use Wikimedia\ObjectCache\BagOStuff;
13
14/**
15 * Default factory to build and prepare search profiles.
16 *
17 * The factory will load these defaults:
18 * <ul>
19 * <li>COMPLETION in CONTEXT_DEFAULT
20 *  <ul>
21 *   <li>default: <i>fuzzy</i></li>
22 *   <li>config override: <var>CirrusSearchCompletionSettings</var></li>
23 *   <li>user pref override: <var>cirrussearch-pref-completion-profile</var></li>
24 *  </ul>
25 * </li>
26 * <li>CROSS_PROJECT_BLOCK_SCORER in CONTEXT_DEFAULT
27 *  <ul>
28 *   <li>default: <i>static</i></li>
29 *   <li>config override: <var>CirrusSearchCrossProjectOrder</var></li>
30 *  </ul>
31 * </li>
32 * <li>FT_QUERY_BUILDER in CONTEXT_DEFAULT
33 *  <ul>
34 *   <li>default: <i>default</i></li>
35 *   <li>config override: <var>CirrusSearchFullTextQueryBuilderProfile</var></li>
36 *   <li>uri param override: <var>cirrusFTQBProfile</var></li>
37 *  </ul>
38 * </li>
39 * <li>PHRASE_SUGGESTER in CONTEXT_DEFAULT
40 *  <ul>
41 *   <li>default: <i>no defaults (selected by fallback methods profiles)</i></li>
42 *  </ul>
43 * </li>
44 * <li>RESCORE in CONTEXT_DEFAULT and CONTEXT_PREFIXSEARCH
45 *  <ul>
46 *   <li>default (CONTEXT_DEFAULT & CONTEXT_PREFIXSEARCH): <i>classic</i></li>
47 *   <li>config override (CONTEXT_DEFAULT): <var>CirrusSearchRescoreProfile</var></li>
48 *   <li>config override (CONTEXT_PREFIXSEARCH): <var>CirrusSearchPrefixSearchRescoreProfile</var></li>
49 *   <li>uri param override (CONTEXT_PREFIXSEARCH & CONTEXT_PREFIXSEARCH): <var>cirrusRescoreProfile</var></li>
50 *  </ul>
51 * </li>
52 * <li>SANEITIZER
53 *  <ul>
54 *   <li>default: <i>no defaults (automatically detected based on wiki size)</i></li>
55 *  </ul>
56 * </li>
57 * <li>SIMILARITY in CONTEXT_DEFAULT
58 *  <ul>
59 *   <li>default: <i>default</i></li>
60 *   <li>config override: <var>wgCirrusSearchSimilarityProfile</var></li>
61 *  </ul>
62 * </li>
63 * <li>FALLBACK in CONTEXT_DEFAULT
64 *  <ul>
65 *      <li>default: <i>none</i></li>
66 *   <li>config override: <var>wgCirrusSearchFallbackProfile</var></li>
67 *  </ul>
68 * </li>
69 * </ul>
70 *
71 * <b>NOTE:</b> extensions may load their own repositories and overriders.
72 */
73class SearchProfileServiceFactory {
74
75    /**
76     * Name of the service declared in MediaWikiServices
77     */
78    public const SERVICE_NAME = self::class;
79
80    /**
81     * Name of the repositories holding profiles
82     * provided by Cirrus.
83     */
84    private const CIRRUS_BASE = 'cirrus_base';
85
86    /**
87     * Name of the repositories holding profiles customized
88     * by wiki admin using CirrusSearch config vars.
89     */
90    private const CIRRUS_CONFIG = 'cirrus_config';
91
92    /**
93     * Name of the repositories holding profiles customized
94     * by extensions via extension attributes.
95     */
96    private const EXTENSION_REGISTRY = 'extension_registry';
97
98    /**
99     * @var InterwikiResolver
100     */
101    private $interwikiResolver;
102
103    /**
104     * @var SearchConfig
105     */
106    private $hostWikiConfig;
107
108    /**
109     * @var BagOStuff
110     */
111    private $localServerCache;
112
113    /**
114     * @var CirrusSearchHookRunner
115     */
116    private $cirrusSearchHookRunner;
117
118    /**
119     * @var UserOptionsLookup
120     */
121    private $userOptionsLookup;
122
123    private ExtensionRegistry $extensionRegistry;
124
125    public function __construct(
126        InterwikiResolver $resolver, SearchConfig $hostWikiConfig, BagOStuff $localServerCache,
127        CirrusSearchHookRunner $cirrusSearchHookRunner, UserOptionsLookup $userOptionsLookup,
128        ExtensionRegistry $extensionRegistry
129    ) {
130        $this->interwikiResolver = $resolver;
131        $this->hostWikiConfig = $hostWikiConfig;
132        $this->localServerCache = $localServerCache;
133        $this->cirrusSearchHookRunner = $cirrusSearchHookRunner;
134        $this->userOptionsLookup = $userOptionsLookup;
135        $this->extensionRegistry = $extensionRegistry;
136    }
137
138    /**
139     * @param SearchConfig $config
140     * @param WebRequest|null $request
141     * @param UserIdentity|null $user
142     * @param bool $forceHook force running the hook even if using HashSearchConfig
143     * @return SearchProfileService
144     */
145    public function loadService( SearchConfig $config, ?WebRequest $request = null, ?UserIdentity $user = null, $forceHook = false ) {
146        $service = new SearchProfileService( $this->userOptionsLookup, $request, $user );
147        $this->loadSemanticSearch( $service, $config );
148        $this->loadCrossProjectBlockScorer( $service, $config );
149        $this->loadSimilarityProfiles( $service, $config );
150        $this->loadRescoreProfiles( $service, $config );
151        $this->loadSecondTryProfiles( $service, $config );
152        $this->loadNamespaceMatcherProfile( $service, $config );
153        $this->loadCompletionProfiles( $service, $config );
154        $this->loadPhraseSuggesterProfiles( $service, $config );
155        $this->loadIndexLookupFallbackProfiles( $service, $config );
156        $this->loadSaneitizerProfiles( $service );
157        $this->loadDocumentSizeLimiterProfiles( $service, $config );
158        $this->loadFullTextQueryProfiles( $service, $config );
159        $this->loadInterwikiOverrides( $service, $config );
160        $this->loadFallbackProfiles( $service, $config );
161        // Register extension profiles only if running on the host wiki.
162        // Only cirrus search is aware that we are running a crosswiki search
163        // Extensions have no way to know that the profiles they want to declare
164        // may be applied to other wikis. Since they may use host wiki config it seems
165        // safer not to allow extensions to add extra profiles here.
166        // E.g. extension could declare a profile that uses a field that is not available
167        // on the target wiki.
168        if ( $forceHook || $config->isLocalWiki() ) {
169            $this->cirrusSearchHookRunner->onCirrusSearchProfileService( $service );
170        }
171        $service->freeze();
172        return $service;
173    }
174
175    private function loadSemanticSearch( SearchProfileService $service, SearchConfig $config ) {
176        $defaultProfile = $config->get( 'CirrusSearchDefaultSemanticProfile' );
177        if ( !$defaultProfile ) {
178            return;
179        }
180        $service->registerSemanticSearchQueryRoute( [ NS_MAIN ], 1.0 );
181        // Seems incorrect that all FT_QUERY_BUILDER's have access to semantic profile?
182        // Maybe we should allow the profile to define the profile to get query building from?
183        $service->registerDefaultProfile( SearchProfileService::FT_QUERY_BUILDER,
184            SearchProfileService::CONTEXT_SEMANTIC, $defaultProfile );
185        $service->registerDefaultProfile( SearchProfileService::RESCORE,
186            SearchProfileService::CONTEXT_SEMANTIC, 'empty' );
187    }
188
189    private function loadCrossProjectBlockScorer( SearchProfileService $service, SearchConfig $config ) {
190        $service->registerFileRepository( SearchProfileService::CROSS_PROJECT_BLOCK_SCORER,
191            self::CIRRUS_BASE, __DIR__ . '/../../profiles/CrossProjectBlockScorerProfiles.config.php' );
192        $service->registerRepository( new ConfigProfileRepository( SearchProfileService::CROSS_PROJECT_BLOCK_SCORER,
193            self::CIRRUS_CONFIG, 'CirrusSearchCrossProjectBlockScorerProfiles', $config ) );
194        $service->registerRepository( new ExtensionRegistryProfileRepository( SearchProfileService::CROSS_PROJECT_BLOCK_SCORER,
195            self::EXTENSION_REGISTRY, 'CirrusSearchCrossProjectBlockScorerProfiles', $this->extensionRegistry ) );
196        $service->registerDefaultProfile( SearchProfileService::CROSS_PROJECT_BLOCK_SCORER,
197            SearchProfileService::CONTEXT_DEFAULT, 'static' );
198        $service->registerConfigOverride( SearchProfileService::CROSS_PROJECT_BLOCK_SCORER,
199            SearchProfileService::CONTEXT_DEFAULT, $config, 'CirrusSearchCrossProjectOrder' );
200    }
201
202    private function loadSimilarityProfiles( SearchProfileService $service, SearchConfig $config ) {
203        $service->registerFileRepository( SearchProfileService::SIMILARITY, self::CIRRUS_BASE,
204            __DIR__ . '/../../profiles/SimilarityProfiles.config.php' );
205        $service->registerRepository( new ConfigProfileRepository( SearchProfileService::SIMILARITY,
206            self::CIRRUS_CONFIG, 'CirrusSearchSimilarityProfiles', $config ) );
207        $service->registerRepository( new ExtensionRegistryProfileRepository( SearchProfileService::SIMILARITY,
208            self::EXTENSION_REGISTRY, 'CirrusSearchSimilarityProfiles', $this->extensionRegistry ) );
209
210        $service->registerDefaultProfile( SearchProfileService::SIMILARITY,
211            SearchProfileService::CONTEXT_DEFAULT, 'bm25_with_defaults' );
212        $service->registerConfigOverride( SearchProfileService::SIMILARITY,
213            SearchProfileService::CONTEXT_DEFAULT, $config, 'CirrusSearchSimilarityProfile' );
214    }
215
216    private function loadRescoreProfiles( SearchProfileService $service, SearchConfig $config ) {
217        $service->registerFileRepository( SearchProfileService::RESCORE,
218            self::CIRRUS_BASE, __DIR__ . '/../../profiles/RescoreProfiles.config.php' );
219        $service->registerRepository( new ConfigProfileRepository( SearchProfileService::RESCORE,
220            self::CIRRUS_CONFIG, 'CirrusSearchRescoreProfiles', $config ) );
221        $service->registerRepository( new ExtensionRegistryProfileRepository( SearchProfileService::RESCORE,
222            self::EXTENSION_REGISTRY, 'CirrusSearchRescoreProfiles', $this->extensionRegistry ) );
223        $service->registerDefaultProfile( SearchProfileService::RESCORE,
224            SearchProfileService::CONTEXT_DEFAULT, 'classic' );
225        $service->registerDefaultProfile( SearchProfileService::RESCORE,
226            SearchProfileService::CONTEXT_PREFIXSEARCH, 'classic' );
227
228        $service->registerConfigOverride( SearchProfileService::RESCORE,
229            SearchProfileService::CONTEXT_DEFAULT, $config, 'CirrusSearchRescoreProfile' );
230        $service->registerConfigOverride( SearchProfileService::RESCORE,
231            SearchProfileService::CONTEXT_PREFIXSEARCH, $config, 'CirrusSearchPrefixSearchRescoreProfile' );
232
233        $service->registerUriParamOverride( SearchProfileService::RESCORE,
234            [ SearchProfileService::CONTEXT_DEFAULT, SearchProfileService::CONTEXT_PREFIXSEARCH ],
235            'cirrusRescoreProfile' );
236
237        // function chains
238        $service->registerFileRepository( SearchProfileService::RESCORE_FUNCTION_CHAINS,
239            self::CIRRUS_BASE, __DIR__ . '/../../profiles/RescoreFunctionChains.config.php' );
240        $service->registerRepository( new ConfigProfileRepository( SearchProfileService::RESCORE_FUNCTION_CHAINS,
241            self::CIRRUS_CONFIG, 'CirrusSearchRescoreFunctionScoreChains', $config ) );
242        $service->registerRepository( new ExtensionRegistryProfileRepository( SearchProfileService::RESCORE_FUNCTION_CHAINS,
243            self::EXTENSION_REGISTRY, 'CirrusSearchRescoreFunctionScoreChains', $this->extensionRegistry ) );
244        // No default profiles for function chains, these profiles are always accessed explicitly
245    }
246
247    private function loadSecondTryProfiles( SearchProfileService $service, SearchConfig $config ) {
248        $service->registerFileRepository( SearchProfileService::SECOND_TRY,
249            self::CIRRUS_BASE, __DIR__ . '/../../profiles/SecondTryProfiles.config.php' );
250        $service->registerRepository( new ConfigProfileRepository( SearchProfileService::SECOND_TRY,
251            self::CIRRUS_CONFIG, 'CirrusSearchSecondTryProfiles', $config ) );
252        $service->registerDefaultProfile( SearchProfileService::SECOND_TRY,
253            SearchProfileService::CONTEXT_COMPLETION, 'default' );
254        $service->registerConfigOverride( SearchProfileService::SECOND_TRY,
255            SearchProfileService::CONTEXT_COMPLETION, $config, 'CirrusSearchCompletionUseSecondTryProfile' );
256        $service->registerUriParamOverride( SearchProfileService::SECOND_TRY,
257            SearchProfileService::CONTEXT_COMPLETION, 'cirrusUseSecondTryProfile' );
258    }
259
260    private function loadNamespaceMatcherProfile( SearchProfileService $service, SearchConfig $config ): void {
261        $service->registerFileRepository( SearchProfileService::NAMESPACE_MATCHER,
262            self::CIRRUS_BASE, __DIR__ . '/../../profiles/NamespaceMatcherProfiles.config.php' );
263        $service->registerRepository( new ConfigProfileRepository( SearchProfileService::NAMESPACE_MATCHER,
264            self::CIRRUS_CONFIG, 'CirrusSearchNamespaceMatcherProfiles', $config ) );
265
266        $service->registerDefaultProfile( SearchProfileService::NAMESPACE_MATCHER,
267            SearchProfileService::CONTEXT_DEFAULT, 'naive' );
268
269        $service->registerConfigOverride( SearchProfileService::NAMESPACE_MATCHER,
270            SearchProfileService::CONTEXT_DEFAULT, $config, 'CirrusSearchNamespaceResolutionMethod' );
271
272        $service->registerUriParamOverride( SearchProfileService::NAMESPACE_MATCHER,
273            SearchProfileService::CONTEXT_DEFAULT, 'cirrusUseNamespaceMatcherProfile' );
274    }
275
276    private function loadCompletionProfiles( SearchProfileService $service, SearchConfig $config ) {
277        $service->registerRepository( CompletionSearchProfileRepository::fromFile( SearchProfileService::COMPLETION,
278            self::CIRRUS_BASE, __DIR__ . '/../../profiles/SuggestProfiles.config.php', $config ) );
279        $service->registerRepository( CompletionSearchProfileRepository::fromConfig( SearchProfileService::COMPLETION,
280            self::CIRRUS_CONFIG, 'CirrusSearchCompletionProfiles', $config ) );
281        $service->registerRepository( CompletionSearchProfileRepository::fromRepo(
282            new ExtensionRegistryProfileRepository( SearchProfileService::COMPLETION,
283            self::EXTENSION_REGISTRY, 'CirrusSearchCompletionProfiles', $this->extensionRegistry ), $config ) );
284        $service->registerDefaultProfile( SearchProfileService::COMPLETION,
285            SearchProfileService::CONTEXT_COMPLETION, 'fuzzy' );
286        // XXX: We don't really override the default here
287        // Due to the way User preference works we may always end up using
288        // the user pref overrides because we initialize default user pref
289        // in Hooks::onUserGetDefaultOptions
290        $service->registerConfigOverride( SearchProfileService::COMPLETION,
291            SearchProfileService::CONTEXT_COMPLETION, $config, 'CirrusSearchCompletionSettings' );
292        $service->registerUserPrefOverride( SearchProfileService::COMPLETION,
293            SearchProfileService::CONTEXT_COMPLETION, 'cirrussearch-pref-completion-profile' );
294    }
295
296    private function loadPhraseSuggesterProfiles( SearchProfileService $service, SearchConfig $config ) {
297        $service->registerRepository( PhraseSuggesterProfileRepoWrapper::fromFile( SearchProfileService::PHRASE_SUGGESTER,
298            self::CIRRUS_BASE, __DIR__ . '/../../profiles/PhraseSuggesterProfiles.config.php', $this->localServerCache ) );
299
300        $service->registerRepository( PhraseSuggesterProfileRepoWrapper::fromConfig( SearchProfileService::PHRASE_SUGGESTER,
301            self::CIRRUS_CONFIG, 'CirrusSearchPhraseSuggestProfiles', $config, $this->localServerCache ) );
302
303        $service->registerRepository( new PhraseSuggesterProfileRepoWrapper(
304            new ExtensionRegistryProfileRepository( SearchProfileService::PHRASE_SUGGESTER, self::EXTENSION_REGISTRY,
305                'CirrusSearchPhraseSuggestProfiles', $this->extensionRegistry ), $this->localServerCache ) );
306    }
307
308    private function loadIndexLookupFallbackProfiles( SearchProfileService $service, SearchConfig $config ) {
309        $service->registerFileRepository( SearchProfileService::INDEX_LOOKUP_FALLBACK,
310            self::CIRRUS_BASE, __DIR__ . '/../../profiles/IndexLookupFallbackProfiles.config.php' );
311
312        $service->registerRepository( new ConfigProfileRepository( SearchProfileService::INDEX_LOOKUP_FALLBACK,
313            self::CIRRUS_CONFIG, 'CirrusSearchIndexLookupFallbackProfiles', $config ) );
314
315        $service->registerRepository( new ExtensionRegistryProfileRepository( SearchProfileService::INDEX_LOOKUP_FALLBACK,
316            self::EXTENSION_REGISTRY, 'CirrusSearchIndexLookupFallbackProfiles', $this->extensionRegistry ) );
317    }
318
319    private function loadSaneitizerProfiles( SearchProfileService $service ) {
320        $service->registerFileRepository( SearchProfileService::SANEITIZER, self::CIRRUS_BASE,
321            __DIR__ . '/../../profiles/SaneitizeProfiles.config.php' );
322        // no name resolver, profile is automatically chosen based on wiki
323    }
324
325    private function loadDocumentSizeLimiterProfiles( SearchProfileService $service, SearchConfig $config ) {
326        $service->registerFileRepository( SearchProfileService::DOCUMENT_SIZE_LIMITER, self::CIRRUS_BASE,
327            __DIR__ . '/../../profiles/DocumentSizeLimiterProfiles.config.php' );
328        $service->registerRepository( new ConfigProfileRepository( SearchProfileService::DOCUMENT_SIZE_LIMITER,
329            self::CIRRUS_CONFIG, 'CirrusSearchDocumentSizeLimiterProfiles', $config ) );
330        $service->registerRepository( new ExtensionRegistryProfileRepository( SearchProfileService::DOCUMENT_SIZE_LIMITER,
331            self::EXTENSION_REGISTRY, 'CirrusSearchDocumentSizeLimiterProfiles', $this->extensionRegistry ) );
332        $service->registerDefaultProfile( SearchProfileService::DOCUMENT_SIZE_LIMITER,
333            SearchProfileService::CONTEXT_DEFAULT, "default" );
334        $service->registerConfigOverride( SearchProfileService::DOCUMENT_SIZE_LIMITER,
335            SearchProfileService::CONTEXT_DEFAULT, $config, "CirrusSearchDocumentSizeLimiterProfile" );
336    }
337
338    private function loadFullTextQueryProfiles( SearchProfileService $service, SearchConfig $config ) {
339        $service->registerFileRepository( SearchProfileService::FT_QUERY_BUILDER, self::CIRRUS_BASE,
340            __DIR__ . '/../../profiles/FullTextQueryBuilderProfiles.config.php' );
341
342        $service->registerRepository( new ConfigProfileRepository( SearchProfileService::FT_QUERY_BUILDER, self::CIRRUS_CONFIG,
343            'CirrusSearchFullTextQueryBuilderProfiles', $config ) );
344        $service->registerRepository( new ExtensionRegistryProfileRepository( SearchProfileService::FT_QUERY_BUILDER,
345            self::EXTENSION_REGISTRY, 'CirrusSearchFullTextQueryBuilderProfiles', $this->extensionRegistry ) );
346
347        $service->registerDefaultProfile( SearchProfileService::FT_QUERY_BUILDER,
348            SearchProfileService::CONTEXT_DEFAULT, 'default' );
349        $service->registerConfigOverride( SearchProfileService::FT_QUERY_BUILDER,
350            SearchProfileService::CONTEXT_DEFAULT, $config, 'CirrusSearchFullTextQueryBuilderProfile' );
351        $service->registerUriParamOverride( SearchProfileService::FT_QUERY_BUILDER,
352            SearchProfileService::CONTEXT_DEFAULT, 'cirrusFTQBProfile' );
353    }
354
355    /**
356     * If the host wiki defines profiles in CirrusSearchCrossProjectProfiles
357     * we inject the defaults into the target wiki profile service using a static overrider
358     * with a prio that just supersedes the config default.
359     *
360     * Only rescore et ftbuilder are supported so far.
361     *
362     * @param SearchProfileService $service
363     * @param SearchConfig $config
364     */
365    private function loadInterwikiOverrides( SearchProfileService $service, SearchConfig $config ) {
366        if ( $config->isLocalWiki() || $config === $this->hostWikiConfig ) {
367            return;
368        }
369        $iwPrefix = $this->interwikiResolver->getInterwikiPrefix( $config->getWikiId() );
370        if ( $iwPrefix === null ) {
371            return;
372        }
373        $profiles = $this->hostWikiConfig->getElement( 'CirrusSearchCrossProjectProfiles', $iwPrefix );
374        if ( $profiles === null || !is_array( $profiles ) || $profiles === [] ) {
375            return;
376        }
377        if ( isset( $profiles['rescore'] ) ) {
378            $service->registerProfileOverride( SearchProfileService::RESCORE,
379                SearchProfileService::CONTEXT_DEFAULT,
380                new StaticProfileOverride( $profiles['rescore'], SearchProfileOverride::CONFIG_PRIO - 1 ) );
381        }
382
383        if ( isset( $profiles['ftbuilder'] ) ) {
384            $service->registerProfileOverride( SearchProfileService::FT_QUERY_BUILDER,
385                SearchProfileService::CONTEXT_DEFAULT,
386                new StaticProfileOverride( $profiles['ftbuilder'], SearchProfileOverride::CONFIG_PRIO - 1 ) );
387        }
388    }
389
390    private function loadFallbackProfiles( SearchProfileService $service, SearchConfig $config ) {
391        $service->registerFileRepository( SearchProfileService::FALLBACKS, self::CIRRUS_BASE,
392            __DIR__ . '/../../profiles/FallbackProfiles.config.php' );
393        $service->registerRepository( new ConfigProfileRepository( SearchProfileService::FALLBACKS, self::CIRRUS_CONFIG,
394            'CirrusSearchFallbackProfiles', $config ) );
395        $service->registerRepository( new ExtensionRegistryProfileRepository( SearchProfileService::FALLBACKS, self::EXTENSION_REGISTRY,
396            'CirrusSearchFallbackProfiles', $this->extensionRegistry ) );
397
398        $service->registerDefaultProfile( SearchProfileService::FALLBACKS,
399            SearchProfileService::CONTEXT_DEFAULT, 'none' );
400        $service->registerConfigOverride( SearchProfileService::FALLBACKS,
401            SearchProfileService::CONTEXT_DEFAULT, $config, 'CirrusSearchFallbackProfile' );
402        $service->registerUriParamOverride( SearchProfileService::FALLBACKS,
403            SearchProfileService::CONTEXT_DEFAULT, 'cirrusFallbackProfile' );
404    }
405}