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| 1 | <?php |
| 2 | /** |
| 3 | * WikiLambda handler for hooks which alter page rendering |
| 4 | * |
| 5 | * @file |
| 6 | * @ingroup Extensions |
| 7 | * @copyright 2020– Abstract Wikipedia team; see AUTHORS.txt |
| 8 | * @license MIT |
| 9 | */ |
| 10 | |
| 11 | namespace MediaWiki\Extension\WikiLambda\HookHandler; |
| 12 | |
| 13 | use MediaWiki\Config\Config; |
| 14 | use MediaWiki\Context\IContextSource; |
| 15 | use MediaWiki\Context\RequestContext; |
| 16 | use MediaWiki\Extension\WikiLambda\AbstractContent\AbstractContentUtils; |
| 17 | use MediaWiki\Extension\WikiLambda\AbstractContent\AbstractWikiContent; |
| 18 | use MediaWiki\Extension\WikiLambda\Registry\ZLangRegistry; |
| 19 | use MediaWiki\Extension\WikiLambda\Registry\ZTypeRegistry; |
| 20 | use MediaWiki\Extension\WikiLambda\WikidataEntityLookup; |
| 21 | use MediaWiki\Extension\WikiLambda\WikiLambdaMode; |
| 22 | use MediaWiki\Extension\WikiLambda\ZObjectContent\ZObjectContent; |
| 23 | use MediaWiki\Extension\WikiLambda\ZObjectStore; |
| 24 | use MediaWiki\Extension\WikiLambda\ZObjectUtils; |
| 25 | use MediaWiki\Html\Html; |
| 26 | use MediaWiki\Language\Language; |
| 27 | use MediaWiki\Language\LanguageFactory; |
| 28 | use MediaWiki\Language\LanguageNameUtils; |
| 29 | use MediaWiki\Linker\LinkRenderer; |
| 30 | use MediaWiki\Linker\LinkTarget; |
| 31 | use MediaWiki\Output\OutputPage; |
| 32 | use MediaWiki\Page\Article; |
| 33 | use MediaWiki\Page\WikiPageFactory; |
| 34 | use MediaWiki\Parser\Parser; |
| 35 | use MediaWiki\Parser\PPFrame; |
| 36 | use MediaWiki\ResourceLoader\Context as ResourceLoaderContext; |
| 37 | use MediaWiki\Skin\Skin; |
| 38 | use MediaWiki\Title\Title; |
| 39 | use MediaWiki\User\Options\UserOptionsLookup; |
| 40 | use Wikimedia\HtmlArmor\HtmlArmor; |
| 41 | |
| 42 | class PageRenderingHandler implements |
| 43 | \MediaWiki\Skin\Hook\SkinTemplateNavigation__UniversalHook, |
| 44 | \MediaWiki\Hook\WebRequestPathInfoRouterHook, |
| 45 | \MediaWiki\Output\Hook\BeforePageDisplayHook, |
| 46 | \MediaWiki\Page\Hook\BeforeDisplayNoArticleTextHook, |
| 47 | \MediaWiki\Parser\Hook\GetMagicVariableIDsHook, |
| 48 | \MediaWiki\Parser\Hook\ParserFirstCallInitHook, |
| 49 | \MediaWiki\Parser\Hook\ParserGetVariableValueSwitchHook, |
| 50 | \MediaWiki\Specials\Hook\SpecialStatsAddExtraHook, |
| 51 | \MediaWiki\Skin\Hook\SkinPageReadyConfigHook |
| 52 | { |
| 53 | public function __construct( |
| 54 | private readonly Config $config, |
| 55 | private readonly Language $contentLanguage, |
| 56 | private readonly UserOptionsLookup $userOptionsLookup, |
| 57 | private readonly LanguageNameUtils $languageNameUtils, |
| 58 | private readonly LanguageFactory $languageFactory, |
| 59 | private readonly ZObjectStore $zObjectStore, |
| 60 | private readonly WikidataEntityLookup $entityLookup, |
| 61 | private readonly WikiLambdaMode $mode, |
| 62 | private readonly WikiPageFactory $wikiPageFactory, |
| 63 | ) { |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/SkinTemplateNavigation::Universal |
| 68 | * |
| 69 | * @inheritDoc |
| 70 | */ |
| 71 | public function onSkinTemplateNavigation__Universal( $skinTemplate, &$links ): void { |
| 72 | // We only do this in repo or abstract mode |
| 73 | if ( !$this->mode->isRepoOrAbstract() ) { |
| 74 | return; |
| 75 | } |
| 76 | |
| 77 | // For any page in repo or abstract mode: Add a language control, for users to navigate to another language. |
| 78 | // TODO (T362235): This only works for browsers with Javascript. The button is invisible |
| 79 | // until the ext.wikilambda.languageselector module creates the Vue component to replace |
| 80 | // it; instead, render this Codex component properly server-side somehow. |
| 81 | $ourButton = [ 'wikifunctions-language' => [ |
| 82 | 'button' => true, |
| 83 | 'id' => 'ext-wikilambda-language-selector', |
| 84 | 'text' => '', |
| 85 | 'active' => false, |
| 86 | 'link-class' => [ 'wikifunctions-trigger' ], |
| 87 | 'href' => '#' |
| 88 | ] ]; |
| 89 | $links['user-interface-preferences'] = $ourButton + $links['user-interface-preferences']; |
| 90 | |
| 91 | // The rest of this function is about rewriting skin links on ZObject or Abstract pages |
| 92 | $targetTitle = $skinTemplate->getRelevantTitle(); |
| 93 | if ( !$targetTitle ) { |
| 94 | // Nothing to do, exit. |
| 95 | return; |
| 96 | } |
| 97 | |
| 98 | // Get current langugae from the Skin, which already returns the language set |
| 99 | // by the Request Context, which prioritizes language settings like this: |
| 100 | // * if there's presence of uselang, that takes priority |
| 101 | // * if no language is specified by the url, falls to the user logged in language |
| 102 | // * if nothing specified, falls back to the site content language |
| 103 | $lang = $skinTemplate->getLanguage()->getCode(); |
| 104 | |
| 105 | // If the page is a Talk page of a ZObject or Abstract content |
| 106 | // rewrite the view page with the canonical url |
| 107 | if ( $targetTitle->isTalkPage() ) { |
| 108 | $subjectPage = $targetTitle->getSubjectPage(); |
| 109 | |
| 110 | if ( |
| 111 | $subjectPage->hasContentModel( CONTENT_MODEL_ZOBJECT ) || |
| 112 | $subjectPage->hasContentModel( CONTENT_MODEL_ABSTRACT ) |
| 113 | ) { |
| 114 | $subjectId = $subjectPage->getNamespaceKey( '' ); |
| 115 | |
| 116 | if ( isset( $links['associated-pages' ] ) && isset( $links['associated-pages'][$subjectId] ) ) { |
| 117 | $subjectPrefixedTitle = $subjectPage->getPrefixedDBkey(); |
| 118 | $subjectCanonicalViewLink = '/view/' . $lang . '/' . $subjectPrefixedTitle; |
| 119 | $links['associated-pages'][$subjectId]['href'] = $subjectCanonicalViewLink; |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | // Nothing else to do, exit. |
| 124 | return; |
| 125 | } |
| 126 | |
| 127 | // Determine the content model |
| 128 | $isAbstractContent = $targetTitle->exists() && |
| 129 | $targetTitle->hasContentModel( CONTENT_MODEL_ABSTRACT ); |
| 130 | |
| 131 | $isZObjectContent = $targetTitle->exists() && |
| 132 | $targetTitle->hasContentModel( CONTENT_MODEL_ZOBJECT ); |
| 133 | |
| 134 | if ( !$isZObjectContent && !$isAbstractContent ) { |
| 135 | // Nothing to do, exit. |
| 136 | return; |
| 137 | } |
| 138 | |
| 139 | // Don't show a "View source" link, it's meaningless for our content type |
| 140 | unset( $links['views']['viewsource'] ); |
| 141 | |
| 142 | // Don't show a "Variants" selector even though we're futzing with lang, we have our own control |
| 143 | $links['variants'] = []; |
| 144 | |
| 145 | // Determine the page title based on the content model. |
| 146 | // ZObject content uses, 'ZID', while Abstract uses 'Abstract_Wikipedia:QID'. |
| 147 | $prefixedTitle = $targetTitle->getPrefixedDBkey(); |
| 148 | |
| 149 | // (T360229) Build GET parameters using an array and append them with |
| 150 | // `wfArrayToCgi` rather than hacking inline |
| 151 | $langParams = [ 'uselang' => $lang ]; |
| 152 | |
| 153 | // (T426241/T426296) Other hooks and skins may set an entry — or its href — |
| 154 | // to null to disable a tab without removing it; rewriteHrefIfPresent() skips |
| 155 | // those so we never pass null into appendOrReplaceQueryParams(). |
| 156 | $this->rewriteHrefIfPresent( $links, 'views', 'history', $langParams ); |
| 157 | $this->rewriteHrefIfPresent( $links, 'views', 'edit', $langParams ); |
| 158 | |
| 159 | $isMain = $targetTitle->inNamespace( NS_MAIN ); |
| 160 | $pageKey = mb_strtolower( $prefixedTitle ); |
| 161 | |
| 162 | // Rewrite the 'view' link to the canonical syntax: /view/<lang>/<title>: |
| 163 | // * View link in the right navigation bar |
| 164 | // * View link in the associated pages navigaton bar (if any) |
| 165 | $viewPageKey = $isMain ? 'main' : explode( ':', $pageKey, 2 )[0]; |
| 166 | $canonicalViewLink = '/view/' . $lang . '/' . $prefixedTitle; |
| 167 | |
| 168 | // (T430558) Core only emits a 'view' tab inside its $userCanRead branch, so an existing |
| 169 | // page can reach us without one. A bare nested assignment would auto-vivify a malformed |
| 170 | // entry (href but no text/html), which Vector then rejects, so only rewrite it in place. |
| 171 | if ( isset( $links['views']['view'] ) && is_array( $links['views']['view'] ) ) { |
| 172 | $links['views']['view']['href'] = $canonicalViewLink; |
| 173 | } |
| 174 | if ( isset( $links['associated-pages' ] ) && isset( $links['associated-pages'][$viewPageKey] ) ) { |
| 175 | $links['associated-pages'][$viewPageKey]['href'] = $canonicalViewLink; |
| 176 | } |
| 177 | |
| 178 | // Append uselang to the 'talk' link (if its shape is sane; see comment above). |
| 179 | $talkPageKey = $isMain ? 'talk' : $viewPageKey . '_talk'; |
| 180 | $this->rewriteHrefIfPresent( $links, 'associated-pages', $talkPageKey, $langParams ); |
| 181 | } |
| 182 | |
| 183 | /** |
| 184 | * Rewrite a navigation entry's href via appendOrReplaceQueryParams(), but only |
| 185 | * if the entry is a well-formed array containing a string href. |
| 186 | * |
| 187 | * Skins and other hooks can leave $links[$bucket][$key] (or its href) as null |
| 188 | * to disable a tab in place. Drilling into that without checking caused the |
| 189 | * production errors in T426241 / T426296. |
| 190 | * |
| 191 | * @param array &$links Mutated in place |
| 192 | * @param string $bucket Top-level bucket name, e.g. 'views' or 'associated-pages' |
| 193 | * @param string $key Entry key within the bucket, e.g. 'history', 'edit', 'talk' |
| 194 | * @param array $queryParams Query parameters to append/replace |
| 195 | */ |
| 196 | private function rewriteHrefIfPresent( |
| 197 | array &$links, string $bucket, string $key, array $queryParams |
| 198 | ): void { |
| 199 | if ( !isset( $links[$bucket] ) || !is_array( $links[$bucket] ) ) { |
| 200 | return; |
| 201 | } |
| 202 | $bucketArr = $links[$bucket]; |
| 203 | if ( !isset( $bucketArr[$key] ) || !is_array( $bucketArr[$key] ) ) { |
| 204 | return; |
| 205 | } |
| 206 | $entry = $bucketArr[$key]; |
| 207 | if ( !isset( $entry['href'] ) || !is_string( $entry['href'] ) ) { |
| 208 | return; |
| 209 | } |
| 210 | |
| 211 | $links[$bucket][$key]['href'] = $this->appendOrReplaceQueryParams( |
| 212 | $entry['href'], |
| 213 | $queryParams |
| 214 | ); |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * Given a url with or without query parameters, append or replace them with |
| 219 | * the given set of parameters and their new values and return the new url. |
| 220 | * |
| 221 | * E.g. given an url like title?action=edit&uselang=fr and the parameters |
| 222 | * [ uselang => es, foo => bar ], it appends foo and overwrites uselang, |
| 223 | * returning the url title?action=edit&uselang=es&foo=bar |
| 224 | * |
| 225 | * @param string $url |
| 226 | * @param array $queryParams |
| 227 | * @return string |
| 228 | */ |
| 229 | private function appendOrReplaceQueryParams( string $url, array $queryParams ): string { |
| 230 | if ( str_contains( $url, '?' ) ) { |
| 231 | [ $url, $queryString ] = explode( '?', $url, 2 ); |
| 232 | $query = wfCgiToArray( $queryString ); |
| 233 | } else { |
| 234 | $query = []; |
| 235 | } |
| 236 | foreach ( $queryParams as $paramName => $paramValue ) { |
| 237 | $query[ $paramName ] = $paramValue; |
| 238 | } |
| 239 | return wfAppendQuery( $url, $query ); |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/HtmlPageLinkRendererEnd |
| 244 | * |
| 245 | * @param LinkRenderer $linkRenderer |
| 246 | * @param LinkTarget $linkTarget |
| 247 | * @param bool $isKnown |
| 248 | * @param string|HtmlArmor &$text |
| 249 | * @param string[] &$attribs |
| 250 | * @param string &$ret |
| 251 | * @return bool|void |
| 252 | */ |
| 253 | public function onHtmlPageLinkRendererEnd( |
| 254 | $linkRenderer, $linkTarget, $isKnown, &$text, &$attribs, &$ret |
| 255 | ) { |
| 256 | if ( !$this->mode->isRepoOrAbstract() ) { |
| 257 | return; |
| 258 | } |
| 259 | |
| 260 | // (T343483) We only do this work on special pages, like Special:Watchlist; we don't want to mess with the |
| 261 | // wikitext content, partially because Parsoid-rendered HTML is incompatible with this hook. |
| 262 | $context = RequestContext::getMain(); |
| 263 | if ( !$context->hasTitle() ) { |
| 264 | return; |
| 265 | } |
| 266 | |
| 267 | // Convert the slimline LinkTarget into a full-fat Title so we can ask deeper questions |
| 268 | $targetTitle = Title::newFromLinkTarget( $linkTarget ); |
| 269 | |
| 270 | // (T430174) Interwiki/external links (e.g. "d:Q199" to Wikidata) are never ours to rewrite. |
| 271 | if ( $targetTitle->isExternal() ) { |
| 272 | return; |
| 273 | } |
| 274 | |
| 275 | $entityId = $targetTitle->getBaseText(); |
| 276 | |
| 277 | if ( |
| 278 | // Do nothing if the target isn't one of ours |
| 279 | !( |
| 280 | // Is this a ZObject? |
| 281 | ( |
| 282 | $targetTitle->inNamespace( NS_MAIN ) && |
| 283 | $targetTitle->hasContentModel( CONTENT_MODEL_ZOBJECT ) && |
| 284 | ZObjectUtils::isValidZObjectReference( $entityId ) |
| 285 | ) |
| 286 | // Is this an Abstract Article? |
| 287 | || ( |
| 288 | array_key_exists( $targetTitle->getNamespace(), |
| 289 | $this->config->get( 'WikiLambdaAbstractNamespaces' ) ) && |
| 290 | $targetTitle->hasContentModel( CONTENT_MODEL_ABSTRACT ) && |
| 291 | AbstractContentUtils::isValidAbstractWikiTitle( $entityId ) |
| 292 | ) |
| 293 | ) |
| 294 | ) { |
| 295 | return; |
| 296 | } |
| 297 | |
| 298 | $context = RequestContext::getMain(); |
| 299 | $currentPageContentLanguageCode = $context->getLanguage()->getCode(); |
| 300 | // (T357702) If we don't know the language code, fall back to Z1002/'en' |
| 301 | if ( |
| 302 | // If we're in repo mode, is this a known ZLanguage? |
| 303 | ( |
| 304 | // (T423515) LangRegistry can only be use in repo mode, as it relies on the ZObjectStore / DB |
| 305 | $this->mode->isRepo() && |
| 306 | !ZLangRegistry::singleton()->isLanguageKnownGivenCode( $currentPageContentLanguageCode ) |
| 307 | ) || |
| 308 | // If we're not, just use MediaWiki's language support check |
| 309 | !$this->languageNameUtils->isSupportedLanguage( $currentPageContentLanguageCode ) |
| 310 | ) { |
| 311 | $currentPageContentLanguageCode = 'en'; |
| 312 | } |
| 313 | |
| 314 | // Re-write our path to include the content language ($attribs['href']) where appropriate |
| 315 | // HACK (T358789): Our hook doesn't tell us properly that the target is an action, so we have to pull it from |
| 316 | // the href — we could get $query from HtmlPageLinkRendererBefore, but then we don't have access to the href |
| 317 | $queryPos = strpos( $attribs['href'], '?' ); |
| 318 | $query = $queryPos ? wfCgiToArray( substr( $attribs['href'], $queryPos + 1 ) ) : []; |
| 319 | |
| 320 | $action = $query['action'] ?? 'view'; |
| 321 | if ( $action !== 'view' ) { |
| 322 | $attribs['href'] = '/wiki/' . $entityId . '?action=' . $action . '&uselang=' |
| 323 | . $currentPageContentLanguageCode . '&'; |
| 324 | } elseif ( !isset( $query[ 'diff'] ) && !isset( $query['oldid'] ) ) { |
| 325 | if ( $targetTitle->getNamespace() !== NS_MAIN ) { |
| 326 | $attribs['href'] = '/view/' . $currentPageContentLanguageCode . '/' |
| 327 | . $targetTitle->getNsText() . ':' . $entityId . '?'; |
| 328 | } else { |
| 329 | $attribs['href'] = '/view/' . $currentPageContentLanguageCode . '/' . $entityId . '?'; |
| 330 | } |
| 331 | } else { |
| 332 | $attribs['href'] = '/wiki/' . $entityId . '?uselang=' . $currentPageContentLanguageCode . '&'; |
| 333 | } |
| 334 | |
| 335 | unset( $query['action'] ); |
| 336 | unset( $query['title'] ); |
| 337 | |
| 338 | foreach ( $query as $key => $value ) { |
| 339 | $attribs['href'] .= $key . '=' . $value . '&'; |
| 340 | } |
| 341 | $attribs['href'] = substr( $attribs['href'], 0, -1 ); |
| 342 | |
| 343 | // **After this point, the only changes we're making are to the label ($text)** |
| 344 | |
| 345 | // (T342212) Wrap our ZID in an LTR-enforced <span> so it works OK in RTL environments |
| 346 | $bidiWrappedEntityId = '<span dir="ltr">' . $entityId . '</span>'; |
| 347 | |
| 348 | // We don't re-write the label if the label is already set |
| 349 | if ( $text !== null && $targetTitle->getFullText() !== HtmlArmor::getHtml( $text ) ) { |
| 350 | return; |
| 351 | } |
| 352 | |
| 353 | // Special handling for unknown (red) links; core's makeBrokenLink() already sets class="new" |
| 354 | if ( !$isKnown && $text === $entityId ) { |
| 355 | $text = new HtmlArmor( $bidiWrappedEntityId ); |
| 356 | return; |
| 357 | } |
| 358 | |
| 359 | // An AW article can exist but have no content yet; treat it as a red link. |
| 360 | // Unlike makeBrokenLink(), makeKnownLink() does not set class="new", so we add it here. |
| 361 | $isEmptyAbstractPage = false; |
| 362 | if ( $isKnown && $targetTitle->hasContentModel( CONTENT_MODEL_ABSTRACT ) ) { |
| 363 | $wikiPage = $this->wikiPageFactory->newFromTitle( $targetTitle ); |
| 364 | $content = $wikiPage->getContent(); |
| 365 | if ( $content instanceof AbstractWikiContent ) { |
| 366 | $isEmptyAbstractPage = $content->isEmpty(); |
| 367 | } |
| 368 | } |
| 369 | if ( $isEmptyAbstractPage && ( $text === $entityId || |
| 370 | ( $text !== null && HtmlArmor::getHtml( $text ) === $targetTitle->getPrefixedText() ) ) ) { |
| 371 | $text = new HtmlArmor( $bidiWrappedEntityId ); |
| 372 | $attribs['class'] = isset( $attribs['class'] ) |
| 373 | ? $attribs['class'] . ' new' |
| 374 | : 'new'; |
| 375 | } |
| 376 | |
| 377 | if ( $targetTitle->hasContentModel( CONTENT_MODEL_ABSTRACT ) ) { |
| 378 | $label = $this->fetchAbstractModeLabel( $entityId, $currentPageContentLanguageCode ); |
| 379 | } elseif ( $targetTitle->hasContentModel( CONTENT_MODEL_ZOBJECT ) ) { |
| 380 | $label = $this->fetchRepoModeLabel( $targetTitle, $context->getLanguage() ); |
| 381 | } else { |
| 382 | // If neither mode is enabled, we shouldn't be here, but just in case, don't do anything |
| 383 | return; |
| 384 | } |
| 385 | // If we've got got a label back for any reason, just fall back to the ZID or QID. |
| 386 | if ( $label === null ) { |
| 387 | return; |
| 388 | } |
| 389 | |
| 390 | // Finally, set the label of the link to the *un*escaped user-supplied label, see |
| 391 | // https://www.mediawiki.org/wiki/Manual:Hooks/HtmlPageLinkRendererEnd |
| 392 | // |
| 393 | // &$text: the contents that the <a> tag should have; either a *plain, unescaped string* or a HtmlArmor object. |
| 394 | // |
| 395 | $text = new HtmlArmor( |
| 396 | htmlspecialchars( $label ) |
| 397 | . $context->msg( 'word-separator' )->escaped() |
| 398 | . $context->msg( 'parentheses', [ $bidiWrappedEntityId ] ) |
| 399 | ); |
| 400 | } |
| 401 | |
| 402 | /** |
| 403 | * Uses both Repo/Abstract flag configuration and $1 matching |
| 404 | * to determine the route. |
| 405 | * * E.g. /view/en/Z111 and Repo enabled takes to Special:ViewObject/en/Z111 |
| 406 | * * E.g. /view/en/Q222 and Abstract enabled takes to Special:ViewAbstract/en/Q222 |
| 407 | * * E.g. /view/en/Namespace:Q222 and Abstract enabled takes to Special:ViewAbstract/en/Namespace:Q222 |
| 408 | * |
| 409 | * @param array &$matches |
| 410 | * @param array $data |
| 411 | * @return bool |
| 412 | */ |
| 413 | public function matchRepoAndAbstractRoutes( array &$matches, array $data ): bool { |
| 414 | $lang = $data[ '$2' ]; |
| 415 | $id = $data[ '$1' ]; |
| 416 | |
| 417 | if ( |
| 418 | $this->mode->isRepo() && |
| 419 | ZObjectUtils::isValidZObjectReference( $id ) |
| 420 | ) { |
| 421 | $matches['title'] = "Special:ViewObject/$lang/$id"; |
| 422 | return true; |
| 423 | } |
| 424 | |
| 425 | if ( |
| 426 | $this->mode->isAbstract() && |
| 427 | AbstractContentUtils::isValidAbstractWikiTitle( $id ) |
| 428 | ) { |
| 429 | $matches['title'] = "Special:ViewAbstract/$lang/$id"; |
| 430 | return true; |
| 431 | } |
| 432 | |
| 433 | return false; |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * @inheritDoc |
| 438 | */ |
| 439 | public function onWebRequestPathInfoRouter( $router ) { |
| 440 | $router->add( |
| 441 | '/view/$2/$1', |
| 442 | [ 'title' => false ], |
| 443 | [ 'callback' => [ $this, 'matchRepoAndAbstractRoutes' ] ], |
| 444 | ); |
| 445 | } |
| 446 | |
| 447 | /** |
| 448 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/BeforePageDisplay |
| 449 | * |
| 450 | * @param OutputPage $out |
| 451 | * @param Skin $skin |
| 452 | * @return void |
| 453 | */ |
| 454 | public function onBeforePageDisplay( $out, $skin ): void { |
| 455 | // We only do the rest in repo mode |
| 456 | // Note: Search client is registered via SkinPageReadyConfig hook, not here |
| 457 | if ( !$this->mode->isRepo() ) { |
| 458 | return; |
| 459 | } |
| 460 | |
| 461 | // Save language name in global variables, needed for language selector module |
| 462 | $userLang = $out->getLanguage(); |
| 463 | $userLangName = $this->languageNameUtils->getLanguageName( $userLang->getCode() ); |
| 464 | $out->addJsConfigVars( 'wgUserLanguageName', $userLangName ); |
| 465 | |
| 466 | // Add language selector module to all pages |
| 467 | $out->addModules( 'ext.wikilambda.languageselector' ); |
| 468 | |
| 469 | // Add content module to all pages to enable references and image recovery on all pages |
| 470 | $out->addModuleStyles( 'ext.wikilambda.content.styles' ); |
| 471 | $out->addModules( 'ext.wikilambda.content' ); |
| 472 | } |
| 473 | |
| 474 | /** |
| 475 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/BeforeDisplayNoArticleText |
| 476 | * |
| 477 | * @param Article $article |
| 478 | * @return bool |
| 479 | */ |
| 480 | public function onBeforeDisplayNoArticleText( $article ): bool { |
| 481 | // We only do this in repo mode |
| 482 | // TODO (T411705): Add this for AbstractContent pages too, once we have an edit page for them |
| 483 | if ( !$this->mode->isRepo() ) { |
| 484 | return true; |
| 485 | } |
| 486 | |
| 487 | $title = $article->getTitle(); |
| 488 | $zid = $title->getBaseText(); |
| 489 | |
| 490 | // ignore if the article is not a z object |
| 491 | if ( |
| 492 | !$title->inNamespace( NS_MAIN ) |
| 493 | || !ZObjectUtils::isValidZObjectReference( $zid ) |
| 494 | ) { |
| 495 | return true; |
| 496 | } |
| 497 | |
| 498 | $context = $article->getContext(); |
| 499 | |
| 500 | $this->showMissingObject( $context ); |
| 501 | |
| 502 | return false; |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * T342965: Show a message on object pages that don't have a result. |
| 507 | * @param IContextSource $context |
| 508 | * |
| 509 | * @return void |
| 510 | */ |
| 511 | private function showMissingObject( $context ): void { |
| 512 | $text = wfMessage( 'wikilambda-noobject' )->setContext( $context )->plain(); |
| 513 | |
| 514 | $dir = $context->getLanguage()->getDir(); |
| 515 | $lang = $context->getLanguage()->getHtmlCode(); |
| 516 | |
| 517 | $outputPage = $context->getOutput(); |
| 518 | $outputPage->addWikiTextAsInterface( Html::rawElement( 'div', [ |
| 519 | 'class' => "noarticletext mw-content-$dir", |
| 520 | 'dir' => $dir, |
| 521 | 'lang' => $lang, |
| 522 | ], "\n$text\n" ) ); |
| 523 | } |
| 524 | |
| 525 | /** |
| 526 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/GetMagicVariableIDs |
| 527 | * |
| 528 | * @param string[] &$variableIDs |
| 529 | * @return void |
| 530 | */ |
| 531 | public function onGetMagicVariableIDs( &$variableIDs ): void { |
| 532 | // We only do this in repo mode |
| 533 | if ( !$this->mode->isRepo() ) { |
| 534 | return; |
| 535 | } |
| 536 | |
| 537 | $variableIDs[] = 'magic_count_all'; |
| 538 | $variableIDs[] = 'magic_count_functions'; |
| 539 | $variableIDs[] = 'magic_count_implementations'; |
| 540 | $variableIDs[] = 'magic_count_testers'; |
| 541 | $variableIDs[] = 'magic_count_types'; |
| 542 | $variableIDs[] = 'magic_count_languages'; |
| 543 | } |
| 544 | |
| 545 | /** |
| 546 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/ParserGetVariableValueSwitch |
| 547 | * |
| 548 | * @param Parser $parser |
| 549 | * @param array &$variableCache |
| 550 | * @param string $magicWordId |
| 551 | * @param ?string &$ret |
| 552 | * @param PPFrame|false $frame |
| 553 | * @return bool|void |
| 554 | */ |
| 555 | public function onParserGetVariableValueSwitch( $parser, &$variableCache, $magicWordId, &$ret, $frame ) { |
| 556 | // We only do this in repo mode |
| 557 | if ( !$this->mode->isRepo() ) { |
| 558 | return true; |
| 559 | } |
| 560 | |
| 561 | $matchedType = match ( $magicWordId ) { |
| 562 | 'magic_count_all' => ZTypeRegistry::Z_OBJECT, |
| 563 | 'magic_count_functions' => ZTypeRegistry::Z_FUNCTION, |
| 564 | 'magic_count_implementations' => ZTypeRegistry::Z_IMPLEMENTATION, |
| 565 | 'magic_count_testers' => ZTypeRegistry::Z_TESTER, |
| 566 | 'magic_count_types' => ZTypeRegistry::Z_TYPE, |
| 567 | 'magic_count_languages' => ZTypeRegistry::Z_LANGUAGE, |
| 568 | default => null, |
| 569 | }; |
| 570 | |
| 571 | if ( $matchedType === null ) { |
| 572 | // Unknown magic word, do nothing |
| 573 | return; |
| 574 | } |
| 575 | |
| 576 | $ret = $this->zObjectStore->getCountOfTypeInstances( $matchedType ); |
| 577 | |
| 578 | // Speed-optimisation: cache the value for calls to the same variable in the same request |
| 579 | $variableCache[$magicWordId] = $ret; |
| 580 | |
| 581 | // Permit future callbacks to run for this hook (e.g. other extensions' code). |
| 582 | return true; |
| 583 | } |
| 584 | |
| 585 | /** |
| 586 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/SpecialStatsAddExtra |
| 587 | * |
| 588 | * @param array &$extraStats |
| 589 | * @param IContextSource $context |
| 590 | */ |
| 591 | public function onSpecialStatsAddExtra( &$extraStats, $context ) { |
| 592 | // We only do this in repo mode |
| 593 | if ( !$this->mode->isRepo() ) { |
| 594 | return; |
| 595 | } |
| 596 | |
| 597 | $extraStats['wikilambda-statistics-header'] = [ |
| 598 | 'wikilambda-statistics-label-allobjects' => $this->contentLanguage->formatNum( |
| 599 | $this->zObjectStore->getCountOfTypeInstances( ZTypeRegistry::Z_OBJECT ) |
| 600 | ), |
| 601 | 'wikilambda-statistics-label-types' => $this->contentLanguage->formatNum( |
| 602 | $this->zObjectStore->getCountOfTypeInstances( ZTypeRegistry::Z_TYPE ) |
| 603 | ), |
| 604 | 'wikilambda-statistics-label-languages' => $this->contentLanguage->formatNum( |
| 605 | $this->zObjectStore->getCountOfTypeInstances( ZTypeRegistry::Z_LANGUAGE ) |
| 606 | ), |
| 607 | 'wikilambda-statistics-label-functions' => $this->contentLanguage->formatNum( |
| 608 | $this->zObjectStore->getCountOfTypeInstances( ZTypeRegistry::Z_FUNCTION ) |
| 609 | ), |
| 610 | 'wikilambda-statistics-label-implementations' => $this->contentLanguage->formatNum( |
| 611 | $this->zObjectStore->getCountOfTypeInstances( ZTypeRegistry::Z_IMPLEMENTATION ) |
| 612 | ), |
| 613 | 'wikilambda-statistics-label-testers' => $this->contentLanguage->formatNum( |
| 614 | $this->zObjectStore->getCountOfTypeInstances( ZTypeRegistry::Z_TESTER ) |
| 615 | ), |
| 616 | ]; |
| 617 | } |
| 618 | |
| 619 | /** @inheritDoc */ |
| 620 | public function onParserFirstCallInit( $parser ) { |
| 621 | // We only do this in repo mode |
| 622 | if ( !$this->mode->isRepo() ) { |
| 623 | return; |
| 624 | } |
| 625 | // Provide {{#wikifunctionlabel:Z1234|en}} that will render a link to the ZObject with its label |
| 626 | $parser->setFunctionHook( 'wikifunctionlabel', [ $this, 'parserFunctionWikifunctionLabel' ] ); |
| 627 | $parser->setFunctionHook( 'wikifunctionlabeldesc', [ $this, 'parserFunctionWikifunctionLabelAndDescription' ] ); |
| 628 | } |
| 629 | |
| 630 | /** |
| 631 | * Renders the output of our repo-mode parser function to show the label of a ZObject. |
| 632 | * |
| 633 | * Example: |
| 634 | * {{#wikifunctionlabel:Z1234|en}} |
| 635 | * -> |
| 636 | * [[Z1234|English label of Z1234 (Z1234)]] |
| 637 | * |
| 638 | * @param Parser $parser |
| 639 | * @param string $zid ZID of the ZObject to link to, defaults to 'Z1' |
| 640 | * @param string $langCode Language code to use for the label, defaults to and will fall back to English |
| 641 | * @return string |
| 642 | */ |
| 643 | public function parserFunctionWikifunctionLabel( $parser, $zid = 'Z1', $langCode = 'en' ): string { |
| 644 | return $this->renderParserFunctionWikifunction( $parser, $zid, $langCode, false ); |
| 645 | } |
| 646 | |
| 647 | /** |
| 648 | * Renders the output of our repo-mode parser function to show the label and description of a ZObject. |
| 649 | * |
| 650 | * Example: |
| 651 | * {{#wikifunctionlabeldesc:Z1234|en}} |
| 652 | * -> |
| 653 | * [[Z1234|English label of Z1234 (Z1234): English description of Z1234]] |
| 654 | * |
| 655 | * @param Parser $parser |
| 656 | * @param string $zid ZID of the ZObject to link to, defaults to 'Z1' |
| 657 | * @param string $langCode Language code to use for the label, defaults to and will fall back to English |
| 658 | * @return string |
| 659 | */ |
| 660 | public function parserFunctionWikifunctionLabelAndDescription( $parser, $zid = 'Z1', $langCode = 'en' ): string { |
| 661 | return $this->renderParserFunctionWikifunction( $parser, $zid, $langCode, true ); |
| 662 | } |
| 663 | |
| 664 | /** |
| 665 | * Renders the output of our repo-mode parser functions |
| 666 | * |
| 667 | * @param Parser $parser |
| 668 | * @param string $zid ZID of the ZObject to link to, defaults to 'Z1' |
| 669 | * @param string $langCode Language code to use for the label, defaults to and will fall back to English |
| 670 | * @param bool $includeDescription Whether to include the description in the output |
| 671 | * @return string |
| 672 | */ |
| 673 | private function renderParserFunctionWikifunction( |
| 674 | $parser, string $zid = 'Z1', string $langCode = 'en', bool $includeDescription = false |
| 675 | ): string { |
| 676 | if ( !ZObjectUtils::isValidZObjectReference( $zid ) ) { |
| 677 | // If the ZID is not valid, return just the supplied false-ZID as plain text, escaped. |
| 678 | return htmlspecialchars( $zid ); |
| 679 | } |
| 680 | |
| 681 | // Start the response with a link to the ZObject. |
| 682 | $output = '[[' . $zid . '|'; |
| 683 | |
| 684 | $label = $this->zObjectStore->fetchZObjectLabel( $zid, $langCode, true ); |
| 685 | if ( $label === null ) { |
| 686 | // If we don't have a label, we can't link to it, so just show the 'Unlabelled' ZID |
| 687 | $label = $parser->msg( 'wikilambda-repoparserfunction-unlabelled' )->text(); |
| 688 | } |
| 689 | $output .= wfEscapeWikiText( $label ); |
| 690 | |
| 691 | $output .= $parser->msg( 'word-separator' )->text() |
| 692 | . $parser->msg( 'parentheses' )->params( |
| 693 | '<span dir="ltr" class="ext-wikilambda-inline-zid">' . $zid . '</span>' |
| 694 | )->text(); |
| 695 | |
| 696 | if ( $includeDescription ) { |
| 697 | // This is an expensive operation; flag it as such. |
| 698 | $parser->incrementExpensiveFunctionCount(); |
| 699 | |
| 700 | $zobject = $this->zObjectStore->fetchZObject( $zid ); |
| 701 | |
| 702 | if ( $zobject === null || !( $zobject instanceof ZObjectContent ) || !$zobject->isValid() ) { |
| 703 | // If we can't load the ZObject, just return the label and ZID |
| 704 | $description = $parser->msg( 'wikilambda-repoparserfunction-unknown' )->text(); |
| 705 | } else { |
| 706 | $language = $this->languageFactory->getLanguage( $langCode ); |
| 707 | |
| 708 | $description = $zobject->getZObject()->getDescription( $language, true ); |
| 709 | |
| 710 | if ( !$description ) { |
| 711 | // If we don't have a description, use the default one |
| 712 | $description = $parser->msg( 'wikilambda-repoparserfunction-undescribed' )->text(); |
| 713 | } |
| 714 | } |
| 715 | |
| 716 | $output .= $parser->msg( 'colon-separator' )->text() |
| 717 | . '<span class="ext-wikilambda-inline-description">' |
| 718 | . trim( strip_tags( $parser->recursiveTagParseFully( $description ) ) ) |
| 719 | . '</span>'; |
| 720 | |
| 721 | } |
| 722 | |
| 723 | $output .= ']]'; |
| 724 | |
| 725 | return $output; |
| 726 | } |
| 727 | |
| 728 | /** |
| 729 | * Fetch the label for a Wikidata entity in abstract mode via the Wikidata API. |
| 730 | * |
| 731 | * @param string $entityId The Wikidata QID (e.g. Q715040) |
| 732 | * @param string $currentPageContentLanguageCode The language code to fetch the label in |
| 733 | * @return ?string The label, or null if not found |
| 734 | */ |
| 735 | private function fetchAbstractModeLabel( string $entityId, string $currentPageContentLanguageCode ): ?string { |
| 736 | if ( !$this->mode->isAbstract() ) { |
| 737 | return null; |
| 738 | } |
| 739 | |
| 740 | return $this->entityLookup->resolveAbstractLabel( $entityId, $currentPageContentLanguageCode ); |
| 741 | } |
| 742 | |
| 743 | /** |
| 744 | * Fetch the label for a ZObject in repo mode via the ZObjectStore. |
| 745 | * |
| 746 | * @param Title $title The title of the target page |
| 747 | * @param Language $language The language to fetch the label in |
| 748 | * @return ?string The label, or null if not found |
| 749 | */ |
| 750 | private function fetchRepoModeLabel( Title $title, Language $language ): ?string { |
| 751 | if ( !$this->mode->isRepo() ) { |
| 752 | // (T423515) Don't do this on a non-repo, as it will explode the DB |
| 753 | return null; |
| 754 | } |
| 755 | |
| 756 | return ZObjectUtils::resolveZObjectLabel( $this->zObjectStore, $title, $language ); |
| 757 | } |
| 758 | |
| 759 | /** |
| 760 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/SkinPageReadyConfig |
| 761 | * |
| 762 | * @param ResourceLoaderContext $context |
| 763 | * @param array &$config |
| 764 | * @return void |
| 765 | */ |
| 766 | public function onSkinPageReadyConfig( ResourceLoaderContext $context, array &$config ): void { |
| 767 | // Register our custom search module for Vector 2022 typeahead search. |
| 768 | // We only register search if WikiLambda is in repo or abstract mode. |
| 769 | // This replaces the deprecated mw.config.get( 'wgVectorSearchClient' ) approach (T395641). |
| 770 | // The client decides which underlying search implementation to use based on configuration. |
| 771 | if ( $this->mode->isRepoOrAbstract() ) { |
| 772 | $config['searchModule'] = 'ext.wikilambda.search'; |
| 773 | } |
| 774 | } |
| 775 | } |