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| 1 | <?php |
| 2 | /** |
| 3 | * @license GPL-2.0-or-later |
| 4 | * @file |
| 5 | * @author Zhengzhu Feng <zhengzhu@gmail.com> |
| 6 | * @author fdcn <fdcn64@gmail.com> |
| 7 | * @author shinjiman <shinjiman@gmail.com> |
| 8 | * @author PhiLiP <philip.npc@gmail.com> |
| 9 | */ |
| 10 | |
| 11 | namespace MediaWiki\Language; |
| 12 | |
| 13 | use InvalidArgumentException; |
| 14 | use MediaWiki\Context\RequestContext; |
| 15 | use MediaWiki\Debug\DeprecationHelper; |
| 16 | use MediaWiki\HookContainer\HookRunner; |
| 17 | use MediaWiki\Html\Html; |
| 18 | use MediaWiki\Linker\LinkTarget; |
| 19 | use MediaWiki\Logger\LoggerFactory; |
| 20 | use MediaWiki\MainConfigNames; |
| 21 | use MediaWiki\MediaWikiServices; |
| 22 | use MediaWiki\Page\PageIdentity; |
| 23 | use MediaWiki\Parser\Parser; |
| 24 | use MediaWiki\Parser\Sanitizer; |
| 25 | use MediaWiki\Revision\RevisionRecord; |
| 26 | use MediaWiki\Revision\SlotRecord; |
| 27 | use MediaWiki\StubObject\StubUserLang; |
| 28 | use MediaWiki\Title\Title; |
| 29 | use MediaWiki\User\User; |
| 30 | use RuntimeException; |
| 31 | use UnexpectedValueException; |
| 32 | use Wikimedia\ObjectCache\BagOStuff; |
| 33 | use Wikimedia\Parsoid\DOM\Document; |
| 34 | use Wikimedia\Parsoid\DOM\DocumentFragment; |
| 35 | use Wikimedia\Parsoid\Utils\DOMCompat; |
| 36 | use Wikimedia\ReplacementArray; |
| 37 | use Wikimedia\StringUtils\StringUtils; |
| 38 | |
| 39 | /** |
| 40 | * Base class for multi-variant language conversion. |
| 41 | * |
| 42 | * @ingroup Language |
| 43 | */ |
| 44 | abstract class LanguageConverter implements ILanguageConverter { |
| 45 | use DeprecationHelper; |
| 46 | |
| 47 | /** |
| 48 | * languages supporting variants |
| 49 | * @since 1.20 |
| 50 | * @var string[] |
| 51 | * @phpcs-require-sorted-array |
| 52 | */ |
| 53 | public static $languagesWithVariants = [ |
| 54 | 'ban', |
| 55 | 'crh', |
| 56 | 'en', |
| 57 | 'gan', |
| 58 | 'iu', |
| 59 | 'ku', |
| 60 | 'mni', |
| 61 | 'sh', |
| 62 | 'shi', |
| 63 | 'sr', |
| 64 | 'tg', |
| 65 | 'tly', |
| 66 | 'uz', |
| 67 | 'wuu', |
| 68 | 'zgh', |
| 69 | 'zh', |
| 70 | ]; |
| 71 | |
| 72 | /** |
| 73 | * static default variant of languages supporting variants |
| 74 | * for use with DefaultOptionsLookup.php |
| 75 | * @since 1.40 |
| 76 | * @var array<string,string> |
| 77 | * @phpcs-require-sorted-array |
| 78 | */ |
| 79 | public static $languagesWithStaticDefaultVariant = [ |
| 80 | 'ban' => 'ban', |
| 81 | 'crh' => 'crh', |
| 82 | 'en' => 'en', |
| 83 | 'gan' => 'gan', |
| 84 | 'iu' => 'iu', |
| 85 | 'ku' => 'ku', |
| 86 | 'mni' => 'mni', |
| 87 | 'sh' => 'sh-latn', |
| 88 | 'shi' => 'shi', |
| 89 | 'sr' => 'sr', |
| 90 | 'tg' => 'tg', |
| 91 | 'tly' => 'tly', |
| 92 | 'uz' => 'uz', |
| 93 | 'wuu' => 'wuu', |
| 94 | 'zgh' => 'zgh', |
| 95 | 'zh' => 'zh', |
| 96 | ]; |
| 97 | |
| 98 | /** @var bool */ |
| 99 | private $mTablesLoaded = false; |
| 100 | /** @var ReplacementArray[] */ |
| 101 | protected $mTables = []; |
| 102 | /** @var Language|StubUserLang */ |
| 103 | private $mLangObj; |
| 104 | |
| 105 | private string|DocumentFragment|false $mConvRuleTitle = false; |
| 106 | |
| 107 | /** @var string|null */ |
| 108 | private $mURLVariant; |
| 109 | /** @var string|null */ |
| 110 | private $mUserVariant; |
| 111 | /** @var string|null */ |
| 112 | private $mHeaderVariant; |
| 113 | /** @var int */ |
| 114 | private $mMaxDepth = 10; |
| 115 | /** @var string|null */ |
| 116 | private $mVarSeparatorPattern; |
| 117 | |
| 118 | private const CACHE_VERSION_KEY = 'VERSION 8'; |
| 119 | |
| 120 | /** |
| 121 | * @param Language|StubUserLang $langobj |
| 122 | */ |
| 123 | public function __construct( $langobj ) { |
| 124 | $this->mLangObj = $langobj; |
| 125 | } |
| 126 | |
| 127 | /** |
| 128 | * Get the language code with converter (the "main" language code). |
| 129 | * Page language code would be the same of the language code with converter. |
| 130 | * Note that this code might not be included as one of the variant languages. |
| 131 | * @since 1.36 |
| 132 | * |
| 133 | * @return string |
| 134 | */ |
| 135 | abstract public function getMainCode(): string; |
| 136 | |
| 137 | /** |
| 138 | * Get static default variant. |
| 139 | * For use of specify the default variant form when it different from the |
| 140 | * default "unconverted/mixed-variant form". |
| 141 | * @since 1.40 |
| 142 | * |
| 143 | * @return string |
| 144 | */ |
| 145 | protected function getStaticDefaultVariant(): string { |
| 146 | $code = $this->getMainCode(); |
| 147 | return self::$languagesWithStaticDefaultVariant[$code] ?? $code; |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Get supported variants of the language. |
| 152 | * @since 1.36 |
| 153 | * |
| 154 | * @return array |
| 155 | */ |
| 156 | abstract protected function getLanguageVariants(): array; |
| 157 | |
| 158 | /** |
| 159 | * Get language variants fallbacks. |
| 160 | * @since 1.36 |
| 161 | * |
| 162 | * @return array |
| 163 | */ |
| 164 | abstract public function getVariantsFallbacks(): array; |
| 165 | |
| 166 | /** |
| 167 | * Get the strings that map to the flags. |
| 168 | * @since 1.36 |
| 169 | * |
| 170 | * @return array |
| 171 | */ |
| 172 | final public function getFlags(): array { |
| 173 | $defaultflags = [ |
| 174 | // 'S' show the converted text |
| 175 | // '+' add rules for alltext |
| 176 | // 'E' the flags have an error |
| 177 | // these flags above are reserved for program |
| 178 | 'A' => 'A', // add rule for convert code (all text converted) |
| 179 | 'T' => 'T', // title convert |
| 180 | 'R' => 'R', // raw content |
| 181 | 'D' => 'D', // convert description (subclass implement) |
| 182 | '-' => '-', // remove convert (not implement) |
| 183 | 'H' => 'H', // add rule for convert code (but no display in placed code) |
| 184 | 'N' => 'N', // current variant name |
| 185 | ]; |
| 186 | $flags = array_merge( $defaultflags, $this->getAdditionalFlags() ); |
| 187 | foreach ( $this->getVariants() as $v ) { |
| 188 | $flags[$v] = $v; |
| 189 | } |
| 190 | return $flags; |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * Provides additional flags for converter. By default, it returns empty array and |
| 195 | * typically should be overridden by implementation of converter. |
| 196 | * @deprecated since 1.46. Unused except by SrConverter, which uses this |
| 197 | * to define non-functional flags. |
| 198 | */ |
| 199 | protected function getAdditionalFlags(): array { |
| 200 | return []; |
| 201 | } |
| 202 | |
| 203 | /** |
| 204 | * Get manual level limit for supported variants. |
| 205 | * @since 1.36 |
| 206 | * |
| 207 | * @return array |
| 208 | */ |
| 209 | final public function getManualLevel() { |
| 210 | $manualLevel = $this->getAdditionalManualLevel(); |
| 211 | $result = []; |
| 212 | foreach ( $this->getVariants() as $v ) { |
| 213 | if ( array_key_exists( $v, $manualLevel ) ) { |
| 214 | $result[$v] = $manualLevel[$v]; |
| 215 | } else { |
| 216 | $result[$v] = 'bidirectional'; |
| 217 | } |
| 218 | } |
| 219 | return $result; |
| 220 | } |
| 221 | |
| 222 | /** |
| 223 | * Provides additional flags for converter. By default, this function returns an empty array and |
| 224 | * typically should be overridden by the implementation of converter. |
| 225 | * @since 1.36 |
| 226 | * |
| 227 | * @return array |
| 228 | */ |
| 229 | protected function getAdditionalManualLevel(): array { |
| 230 | return []; |
| 231 | } |
| 232 | |
| 233 | /** |
| 234 | * Get desc code separator. By default returns ":", can be overridden by |
| 235 | * implementation of converter. |
| 236 | * @since 1.36 |
| 237 | * |
| 238 | * @return string |
| 239 | */ |
| 240 | public function getDescCodeSeparator(): string { |
| 241 | return ':'; |
| 242 | } |
| 243 | |
| 244 | /** |
| 245 | * Get desc var separator. By default returns ";", can be overridden by |
| 246 | * implementation of converter. |
| 247 | * @since 1.36 |
| 248 | * |
| 249 | * @return string |
| 250 | */ |
| 251 | public function getDescVarSeparator(): string { |
| 252 | return ';'; |
| 253 | } |
| 254 | |
| 255 | public function getVariantNames(): array { |
| 256 | return MediaWikiServices::getInstance() |
| 257 | ->getLanguageNameUtils() |
| 258 | ->getLanguageNames(); |
| 259 | } |
| 260 | |
| 261 | /** @inheritDoc */ |
| 262 | final public function getVariants() { |
| 263 | $disabledVariants = MediaWikiServices::getInstance()->getMainConfig()->get( |
| 264 | MainConfigNames::DisabledVariants ); |
| 265 | return array_diff( $this->getLanguageVariants(), $disabledVariants ); |
| 266 | } |
| 267 | |
| 268 | /** @inheritDoc */ |
| 269 | public function getVariantFallbacks( $variant ) { |
| 270 | return $this->getVariantsFallbacks()[$variant] ?? $this->getStaticDefaultVariant(); |
| 271 | } |
| 272 | |
| 273 | /** @inheritDoc */ |
| 274 | public function getConvRuleTitle() { |
| 275 | $title = $this->mConvRuleTitle; |
| 276 | if ( $title instanceof DocumentFragment ) { |
| 277 | return $title->textContent; |
| 278 | } |
| 279 | return $title; |
| 280 | } |
| 281 | |
| 282 | /** @inheritDoc */ |
| 283 | public function getConvRuleTitleFragment( Document $ownerDocument ): ?DocumentFragment { |
| 284 | $title = $this->mConvRuleTitle; |
| 285 | if ( $title instanceof DocumentFragment || $title === false ) { |
| 286 | return $title ?: null; |
| 287 | } |
| 288 | $df = $ownerDocument->createDocumentFragment(); |
| 289 | DOMCompat::replaceChildren( $df, $title ); |
| 290 | return $df; |
| 291 | } |
| 292 | |
| 293 | /** @inheritDoc */ |
| 294 | public function getPreferredVariant() { |
| 295 | $req = $this->getURLVariant(); |
| 296 | |
| 297 | $services = MediaWikiServices::getInstance(); |
| 298 | ( new HookRunner( $services->getHookContainer() ) )->onGetLangPreferredVariant( $req ); |
| 299 | |
| 300 | if ( !$req ) { |
| 301 | $user = RequestContext::getMain()->getUser(); |
| 302 | // NOTE: For some calls there may not be a context user or session that is safe |
| 303 | // to use, see (T235360) |
| 304 | // Use case: During user autocreation, UserNameUtils::isUsable is called which uses interface |
| 305 | // messages for reserved usernames. |
| 306 | if ( $user->isSafeToLoad() && $user->isRegistered() ) { |
| 307 | $req = $this->getUserVariant( $user ); |
| 308 | } else { |
| 309 | $req = $this->getHeaderVariant(); |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | $defaultLanguageVariant = $services->getMainConfig() |
| 314 | ->get( MainConfigNames::DefaultLanguageVariant ); |
| 315 | if ( !$req && $defaultLanguageVariant ) { |
| 316 | $req = $defaultLanguageVariant; |
| 317 | } |
| 318 | |
| 319 | $req = $this->validateVariant( $req ); |
| 320 | |
| 321 | // This function, unlike the other get*Variant functions, is |
| 322 | // not memoized (i.e., there return value is not cached) since |
| 323 | // new information might appear during processing after this |
| 324 | // is first called. |
| 325 | return $req ?? $this->getStaticDefaultVariant(); |
| 326 | } |
| 327 | |
| 328 | /** @inheritDoc */ |
| 329 | public function getDefaultVariant() { |
| 330 | $defaultLanguageVariant = MediaWikiServices::getInstance()->getMainConfig()->get( |
| 331 | MainConfigNames::DefaultLanguageVariant ); |
| 332 | |
| 333 | $req = $this->getURLVariant() ?? $this->getHeaderVariant(); |
| 334 | |
| 335 | if ( !$req && $defaultLanguageVariant ) { |
| 336 | $req = $this->validateVariant( $defaultLanguageVariant ); |
| 337 | } |
| 338 | |
| 339 | return $req ?? $this->getStaticDefaultVariant(); |
| 340 | } |
| 341 | |
| 342 | /** @inheritDoc */ |
| 343 | public function validateVariant( $variant = null, bool $fallbackToDefault = false ) { |
| 344 | if ( $variant === null ) { |
| 345 | return $fallbackToDefault ? $this->getStaticDefaultVariant() : null; |
| 346 | } |
| 347 | // Our internal variants are always lower-case; the variant we |
| 348 | // are validating may have mixed cases. |
| 349 | $variant = LanguageCode::replaceDeprecatedCodes( strtolower( $variant ) ); |
| 350 | if ( in_array( $variant, $this->getVariants() ) ) { |
| 351 | return $variant; |
| 352 | } |
| 353 | // Browsers are supposed to use BCP 47 standard in the |
| 354 | // Accept-Language header, but not all of our internal |
| 355 | // mediawiki variant codes are BCP 47. Map BCP 47 code |
| 356 | // to our internal code. |
| 357 | foreach ( $this->getVariants() as $v ) { |
| 358 | // Case-insensitive match (BCP 47 is mixed-case) |
| 359 | if ( strtolower( LanguageCode::bcp47( $v ) ) === $variant ) { |
| 360 | return $v; |
| 361 | } |
| 362 | } |
| 363 | return $fallbackToDefault ? $this->getStaticDefaultVariant() : null; |
| 364 | } |
| 365 | |
| 366 | /** @inheritDoc */ |
| 367 | public function getURLVariant() { |
| 368 | if ( $this->mURLVariant ) { |
| 369 | return $this->mURLVariant; |
| 370 | } |
| 371 | |
| 372 | $request = RequestContext::getMain()->getRequest(); |
| 373 | // see if the preference is set in the request |
| 374 | $ret = $request->getText( 'variant' ); |
| 375 | |
| 376 | if ( !$ret ) { |
| 377 | $ret = $request->getVal( 'uselang' ); |
| 378 | } |
| 379 | |
| 380 | $this->mURLVariant = $this->validateVariant( $ret ); |
| 381 | return $this->mURLVariant; |
| 382 | } |
| 383 | |
| 384 | /** |
| 385 | * Determine if the user has a variant set. |
| 386 | * |
| 387 | * @param User $user |
| 388 | * @return string|null Variant if one found, null otherwise |
| 389 | */ |
| 390 | protected function getUserVariant( User $user ) { |
| 391 | // This should only be called within the class after the user is known to be |
| 392 | // safe to load and logged in, but check just in case. |
| 393 | if ( !$user->isSafeToLoad() ) { |
| 394 | return null; |
| 395 | } |
| 396 | |
| 397 | if ( !$this->mUserVariant ) { |
| 398 | $services = MediaWikiServices::getInstance(); |
| 399 | if ( $user->isRegistered() ) { |
| 400 | // Get language variant preference from logged in users |
| 401 | if ( |
| 402 | $this->getMainCode() === |
| 403 | $services->getContentLanguageCode()->toString() |
| 404 | ) { |
| 405 | $optionName = 'variant'; |
| 406 | } else { |
| 407 | $optionName = 'variant-' . $this->getMainCode(); |
| 408 | } |
| 409 | } else { |
| 410 | // figure out user lang without constructing wgLang to avoid |
| 411 | // infinite recursion |
| 412 | $optionName = 'language'; |
| 413 | } |
| 414 | $ret = $services->getUserOptionsLookup()->getOption( $user, $optionName ); |
| 415 | |
| 416 | $this->mUserVariant = $this->validateVariant( $ret ); |
| 417 | } |
| 418 | |
| 419 | return $this->mUserVariant; |
| 420 | } |
| 421 | |
| 422 | /** |
| 423 | * Determine the language variant from the Accept-Language header. |
| 424 | * |
| 425 | * @return string|null Variant if one found, null otherwise |
| 426 | */ |
| 427 | protected function getHeaderVariant() { |
| 428 | if ( $this->mHeaderVariant ) { |
| 429 | return $this->mHeaderVariant; |
| 430 | } |
| 431 | |
| 432 | $request = RequestContext::getMain()->getRequest(); |
| 433 | // See if some supported language variant is set in the |
| 434 | // HTTP header. |
| 435 | $languages = array_keys( $request->getAcceptLang() ); |
| 436 | if ( !$languages ) { |
| 437 | return null; |
| 438 | } |
| 439 | |
| 440 | $fallbackLanguages = []; |
| 441 | foreach ( $languages as $language ) { |
| 442 | $this->mHeaderVariant = $this->validateVariant( $language ); |
| 443 | if ( $this->mHeaderVariant ) { |
| 444 | break; |
| 445 | } |
| 446 | |
| 447 | // To see if there are fallbacks of current language. |
| 448 | // We record these fallback variants, and process |
| 449 | // them later. |
| 450 | $fallbacks = $this->getVariantFallbacks( $language ); |
| 451 | if ( |
| 452 | is_string( $fallbacks ) && |
| 453 | $fallbacks !== $this->getStaticDefaultVariant() |
| 454 | ) { |
| 455 | $fallbackLanguages[] = $fallbacks; |
| 456 | } elseif ( is_array( $fallbacks ) ) { |
| 457 | $fallbackLanguages = |
| 458 | array_merge( $fallbackLanguages, $fallbacks ); |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | if ( !$this->mHeaderVariant ) { |
| 463 | // process fallback languages now |
| 464 | $fallback_languages = array_unique( $fallbackLanguages ); |
| 465 | foreach ( $fallback_languages as $language ) { |
| 466 | $this->mHeaderVariant = $this->validateVariant( $language ); |
| 467 | if ( $this->mHeaderVariant ) { |
| 468 | break; |
| 469 | } |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | return $this->mHeaderVariant; |
| 474 | } |
| 475 | |
| 476 | /** @inheritDoc */ |
| 477 | public function autoConvert( $text, $toVariant = false ) { |
| 478 | $this->loadTables(); |
| 479 | |
| 480 | if ( !$toVariant ) { |
| 481 | $toVariant = $this->getPreferredVariant(); |
| 482 | if ( !$toVariant ) { |
| 483 | return $text; |
| 484 | } |
| 485 | } |
| 486 | |
| 487 | if ( $this->guessVariant( $text, $toVariant ) ) { |
| 488 | return $text; |
| 489 | } |
| 490 | /** |
| 491 | * We convert everything except: |
| 492 | * 1. HTML markups (anything between < and >) |
| 493 | * 2. HTML entities |
| 494 | * 3. placeholders created by the parser |
| 495 | * IMPORTANT: Beware of failure from pcre.backtrack_limit (T124404). |
| 496 | * Minimize the use of backtracking where possible. |
| 497 | */ |
| 498 | static $reg; |
| 499 | if ( $reg === null ) { |
| 500 | $marker = '|' . Parser::MARKER_PREFIX . '[^\x7f]++\x7f'; |
| 501 | |
| 502 | // this one is needed when the text is inside an HTML markup |
| 503 | $htmlfix = '|<[^>\004]++(?=\004$)|^[^<>]*+>'; |
| 504 | |
| 505 | // Optimize for the common case where these tags have |
| 506 | // few or no children. Thus try and possessively get as much as |
| 507 | // possible, and only engage in backtracking when we hit a '<'. |
| 508 | |
| 509 | // disable convert to variants between <code> tags |
| 510 | $codefix = '<code>[^<]*+(?:(?:(?!<\/code>).)[^<]*+)*+<\/code>|'; |
| 511 | // disable conversion of <script> tags |
| 512 | $scriptfix = '<script[^>]*+>[^<]*+(?:(?:(?!<\/script>).)[^<]*+)*+<\/script>|'; |
| 513 | // disable conversion of <pre> tags |
| 514 | $prefix = '<pre[^>]*+>[^<]*+(?:(?:(?!<\/pre>).)[^<]*+)*+<\/pre>|'; |
| 515 | // disable conversion of <math> tags |
| 516 | $mathfix = '<math[^>]*+>[^<]*+(?:(?:(?!<\/math>).)[^<]*+)*+<\/math>|'; |
| 517 | // disable conversion of <svg> tags |
| 518 | $svgfix = '<svg[^>]*+>[^<]*+(?:(?:(?!<\/svg>).)[^<]*+)*+<\/svg>|'; |
| 519 | // The "|.*+)" at the end, is in case we missed some part of html syntax, |
| 520 | // we will fail securely (hopefully) by matching the rest of the string. |
| 521 | $htmlFullTag = '<(?:[^>=]*+(?>[^>=]*+=\s*+(?:"[^"]*"|\'[^\']*\'|[^\'">\s]*+))*+[^>=]*+>|.*+)|'; |
| 522 | |
| 523 | $reg = '/' . $codefix . $scriptfix . $prefix . $mathfix . $svgfix . |
| 524 | $htmlFullTag . |
| 525 | '&[a-zA-Z#][a-z0-9]++;' . $marker . $htmlfix . '|\004$/s'; |
| 526 | } |
| 527 | $startPos = 0; |
| 528 | $sourceBlob = ''; |
| 529 | $literalBlob = ''; |
| 530 | |
| 531 | // Guard against delimiter nulls in the input |
| 532 | // (should never happen: see T159174) |
| 533 | $text = str_replace( "\000", '', $text ); |
| 534 | $text = str_replace( "\004", '', $text ); |
| 535 | |
| 536 | $markupMatches = null; |
| 537 | $elementMatches = null; |
| 538 | |
| 539 | // We add a marker (\004) at the end of text, to ensure we always match the |
| 540 | // entire text (Otherwise, pcre.backtrack_limit might cause silent failure) |
| 541 | $textWithMarker = $text . "\004"; |
| 542 | while ( $startPos < strlen( $text ) ) { |
| 543 | if ( preg_match( $reg, $textWithMarker, $markupMatches, PREG_OFFSET_CAPTURE, $startPos ) ) { |
| 544 | $elementPos = $markupMatches[0][1]; |
| 545 | $element = $markupMatches[0][0]; |
| 546 | if ( $element === "\004" ) { |
| 547 | // We hit the end. |
| 548 | $elementPos = strlen( $text ); |
| 549 | $element = ''; |
| 550 | } elseif ( substr( $element, -1 ) === "\004" ) { |
| 551 | // This can sometimes happen if we have |
| 552 | // unclosed html tags. For example, |
| 553 | // when converting a title attribute |
| 554 | // during a recursive call that contains |
| 555 | // a < e.g. <div title="<">. |
| 556 | $element = substr( $element, 0, -1 ); |
| 557 | } |
| 558 | } else { |
| 559 | // If we hit here, then Language Converter could be tricked |
| 560 | // into doing an XSS, so we refuse to translate. |
| 561 | // If expected input manages to reach this code path, |
| 562 | // we should consider it a bug. |
| 563 | $log = LoggerFactory::getInstance( 'languageconverter' ); |
| 564 | $log->error( "Hit pcre.backtrack_limit in " . __METHOD__ |
| 565 | . ". Disabling language conversion for this page.", |
| 566 | [ |
| 567 | "method" => __METHOD__, |
| 568 | "variant" => $toVariant, |
| 569 | "startOfText" => substr( $text, 0, 500 ) |
| 570 | ] |
| 571 | ); |
| 572 | return $text; |
| 573 | } |
| 574 | // Queue the part before the markup for translation in a batch |
| 575 | $sourceBlob .= substr( $text, $startPos, $elementPos - $startPos ) . "\000"; |
| 576 | |
| 577 | // Advance to the next position |
| 578 | $startPos = $elementPos + strlen( $element ); |
| 579 | |
| 580 | // Translate any alt or title attributes inside the matched element |
| 581 | if ( $element !== '' |
| 582 | && preg_match( '/^(<[^>\s]*+)\s([^>]*+)(.*+)$/', $element, $elementMatches ) |
| 583 | ) { |
| 584 | // FIXME, this decodes entities, so if you have something |
| 585 | // like <div title="foo<bar"> the bar won't get |
| 586 | // translated since after entity decoding it looks like |
| 587 | // unclosed html and we call this method recursively |
| 588 | // on attributes. |
| 589 | $attrs = Sanitizer::decodeTagAttributes( $elementMatches[2] ); |
| 590 | // Ensure self-closing tags stay self-closing. |
| 591 | $close = substr( $elementMatches[2], -1 ) === '/' ? ' /' : ''; |
| 592 | $changed = false; |
| 593 | foreach ( [ 'title', 'alt' ] as $attrName ) { |
| 594 | if ( !isset( $attrs[$attrName] ) ) { |
| 595 | continue; |
| 596 | } |
| 597 | $attr = $attrs[$attrName]; |
| 598 | // Don't convert URLs |
| 599 | if ( !str_contains( $attr, '://' ) ) { |
| 600 | $attr = $this->recursiveConvertTopLevel( $attr, $toVariant ); |
| 601 | } |
| 602 | |
| 603 | if ( $attr !== $attrs[$attrName] ) { |
| 604 | $attrs[$attrName] = $attr; |
| 605 | $changed = true; |
| 606 | } |
| 607 | } |
| 608 | if ( $changed ) { |
| 609 | // @phan-suppress-next-line SecurityCheck-DoubleEscaped Explained above with decodeTagAttributes |
| 610 | $element = $elementMatches[1] . Html::expandAttributes( $attrs ) . |
| 611 | $close . $elementMatches[3]; |
| 612 | } |
| 613 | } |
| 614 | $literalBlob .= $element . "\000"; |
| 615 | } |
| 616 | |
| 617 | // Do the main translation batch |
| 618 | $translatedBlob = $this->translate( $sourceBlob, $toVariant ); |
| 619 | |
| 620 | // Put the output back together |
| 621 | $translatedIter = StringUtils::explode( "\000", $translatedBlob ); |
| 622 | $literalIter = StringUtils::explode( "\000", $literalBlob ); |
| 623 | $output = ''; |
| 624 | while ( $translatedIter->valid() && $literalIter->valid() ) { |
| 625 | $output .= $translatedIter->current(); |
| 626 | $output .= $literalIter->current(); |
| 627 | $translatedIter->next(); |
| 628 | $literalIter->next(); |
| 629 | } |
| 630 | |
| 631 | return $output; |
| 632 | } |
| 633 | |
| 634 | /** @inheritDoc */ |
| 635 | public function translate( $text, $variant ) { |
| 636 | // If $text is empty or only includes spaces, do nothing |
| 637 | // Otherwise translate it |
| 638 | if ( trim( $text ) ) { |
| 639 | $this->loadTables(); |
| 640 | // (T337427) Debugging / note error state if mTables not initialised |
| 641 | if ( !$this->mTables[$variant] ) { |
| 642 | $log = LoggerFactory::getInstance( 'languageconverter' ); |
| 643 | $log->error( "Tables not initialised for variant in " . __METHOD__ |
| 644 | . ". No language conversion made for this string.", |
| 645 | [ |
| 646 | "method" => __METHOD__, |
| 647 | "variant" => $variant, |
| 648 | "startOfText" => substr( $text, 0, 500 ) |
| 649 | ] |
| 650 | ); |
| 651 | return $text; |
| 652 | } |
| 653 | $text = $this->mTables[$variant]->replace( $text ); |
| 654 | } |
| 655 | return $text; |
| 656 | } |
| 657 | |
| 658 | /** |
| 659 | * @param string $text Text to convert |
| 660 | * @param string $variant Variant language code |
| 661 | * @return string Translated text |
| 662 | */ |
| 663 | protected function translateWithoutRomanNumbers( $text, $variant ) { |
| 664 | $breaks = '[^\w\x80-\xff]'; |
| 665 | |
| 666 | // regexp for roman numbers |
| 667 | // Lookahead assertion ensures $roman doesn't match the empty string |
| 668 | $roman = '(?=[MDCLXVI])M{0,4}(C[DM]|D?C{0,3})(X[LC]|L?X{0,3})(I[VX]|V?I{0,3})'; |
| 669 | |
| 670 | $reg = '/^' . $roman . '$|^' . $roman . $breaks . '|' . $breaks |
| 671 | . $roman . '$|' . $breaks . $roman . $breaks . '/'; |
| 672 | |
| 673 | $matches = preg_split( $reg, $text, -1, PREG_SPLIT_OFFSET_CAPTURE ); |
| 674 | |
| 675 | $m = array_shift( $matches ); |
| 676 | $this->loadTables(); |
| 677 | if ( !isset( $this->mTables[$variant] ) ) { |
| 678 | throw new RuntimeException( "Broken variant table: " |
| 679 | . implode( ',', array_keys( $this->mTables ) ) ); |
| 680 | } |
| 681 | $ret = $this->mTables[$variant]->replace( $m[0] ); |
| 682 | $mstart = (int)$m[1] + strlen( $m[0] ); |
| 683 | foreach ( $matches as $m ) { |
| 684 | $ret .= substr( $text, $mstart, (int)$m[1] - $mstart ); |
| 685 | $ret .= $this->translate( $m[0], $variant ); |
| 686 | $mstart = (int)$m[1] + strlen( $m[0] ); |
| 687 | } |
| 688 | |
| 689 | return $ret; |
| 690 | } |
| 691 | |
| 692 | /** @inheritDoc */ |
| 693 | public function autoConvertToAllVariants( $text ) { |
| 694 | $this->loadTables(); |
| 695 | |
| 696 | $ret = []; |
| 697 | foreach ( $this->getVariants() as $variant ) { |
| 698 | $ret[$variant] = $this->translate( $text, $variant ); |
| 699 | } |
| 700 | |
| 701 | return $ret; |
| 702 | } |
| 703 | |
| 704 | /** |
| 705 | * Apply manual conversion rules. |
| 706 | * @internal |
| 707 | */ |
| 708 | public function applyManualConv( ConverterRule $convRule ) { |
| 709 | // Use syntax -{T|zh-cn:TitleCN; zh-tw:TitleTw}- to custom |
| 710 | // title conversion. |
| 711 | // T26072: $mConvRuleTitle was overwritten by other manual |
| 712 | // rule(s) not for title, this breaks the title conversion. |
| 713 | $newConvRuleTitle = $convRule->getTitleValue(); |
| 714 | if ( $newConvRuleTitle !== null ) { |
| 715 | // So I add an empty check for getTitle() |
| 716 | $this->mConvRuleTitle = $newConvRuleTitle; |
| 717 | } |
| 718 | |
| 719 | // merge/remove manual conversion rules to/from global table |
| 720 | $convTable = $convRule->getConvTable(); |
| 721 | $action = $convRule->getRulesAction(); |
| 722 | foreach ( $convTable as $variant => $pair ) { |
| 723 | $v = $this->validateVariant( $variant ); |
| 724 | if ( !$v ) { |
| 725 | continue; |
| 726 | } |
| 727 | |
| 728 | if ( $action == 'add' ) { |
| 729 | // More efficient than array_merge(), about 2.5 times. |
| 730 | foreach ( $pair as $from => $to ) { |
| 731 | $this->mTables[$v]->setPair( $from, $to ); |
| 732 | } |
| 733 | } elseif ( $action == 'remove' ) { |
| 734 | $this->mTables[$v]->removeArray( $pair ); |
| 735 | } |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | /** @inheritDoc */ |
| 740 | public function convertSplitTitle( $title, ?string $variant = null ) { |
| 741 | $variant ??= $this->getPreferredVariant(); |
| 742 | |
| 743 | $index = $title->getNamespace(); |
| 744 | $nsText = $this->convertNamespace( $index, $variant ); |
| 745 | |
| 746 | $name = str_replace( '_', ' ', $title->getDBKey() ); |
| 747 | $mainText = $this->translate( $name, $variant ); |
| 748 | |
| 749 | return [ $nsText, ':', $mainText ]; |
| 750 | } |
| 751 | |
| 752 | /** @inheritDoc */ |
| 753 | public function convertTitle( $title ) { |
| 754 | [ $nsText, $nsSeparator, $mainText ] = $this->convertSplitTitle( $title ); |
| 755 | return $nsText !== '' ? |
| 756 | $nsText . $nsSeparator . $mainText : |
| 757 | $mainText; |
| 758 | } |
| 759 | |
| 760 | /** @inheritDoc */ |
| 761 | public function convertNamespace( $index, $variant = null ) { |
| 762 | if ( $index === NS_MAIN ) { |
| 763 | return ''; |
| 764 | } |
| 765 | |
| 766 | $variant ??= $this->getPreferredVariant(); |
| 767 | |
| 768 | $cache = MediaWikiServices::getInstance()->getLocalServerObjectCache(); |
| 769 | $key = $cache->makeKey( 'languageconverter', 'namespace-text', $index, $variant ); |
| 770 | return $cache->getWithSetCallback( |
| 771 | $key, |
| 772 | BagOStuff::TTL_MINUTE, |
| 773 | function () use ( $index, $variant ) { |
| 774 | return $this->computeNsVariantText( $index, $variant ); |
| 775 | } |
| 776 | ); |
| 777 | } |
| 778 | |
| 779 | /** |
| 780 | * @param int $index |
| 781 | * @param string $variant |
| 782 | * @return string |
| 783 | */ |
| 784 | private function computeNsVariantText( int $index, string $variant ): string { |
| 785 | $nsVariantText = false; |
| 786 | |
| 787 | // Check if a message for this namespace exists. Note that this would follow |
| 788 | // the fallback chain, and the site's content language as the last resort. |
| 789 | $nsConvMsg = wfMessage( 'conversion-ns' . $index )->inLanguage( $variant ); |
| 790 | if ( $nsConvMsg->exists() ) { |
| 791 | $nsVariantText = $nsConvMsg->plain(); |
| 792 | } |
| 793 | |
| 794 | if ( $nsVariantText === false ) { |
| 795 | // No message exists, retrieve it from the target variant's namespace names. |
| 796 | $langObj = MediaWikiServices::getInstance() |
| 797 | ->getLanguageFactory() |
| 798 | ->getLanguage( $variant ); |
| 799 | $nsVariantText = $langObj->getFormattedNsText( $index ); |
| 800 | } |
| 801 | return $nsVariantText; |
| 802 | } |
| 803 | |
| 804 | /** @inheritDoc */ |
| 805 | public function convert( $text ) { |
| 806 | $variant = $this->getPreferredVariant(); |
| 807 | return $this->convertTo( $text, $variant ); |
| 808 | } |
| 809 | |
| 810 | /** @inheritDoc */ |
| 811 | public function convertTo( $text, $variant, bool $clearState = true ) { |
| 812 | $languageConverterFactory = MediaWikiServices::getInstance()->getLanguageConverterFactory(); |
| 813 | if ( $languageConverterFactory->isConversionDisabled() ) { |
| 814 | return $text; |
| 815 | } |
| 816 | // Reset converter state for a new converter run. |
| 817 | if ( $clearState ) { |
| 818 | $this->mConvRuleTitle = false; |
| 819 | } |
| 820 | return $this->recursiveConvertTopLevel( $text, $variant ); |
| 821 | } |
| 822 | |
| 823 | /** |
| 824 | * Recursively convert text on the outside. Allow to use nested |
| 825 | * markups to custom rules. |
| 826 | * |
| 827 | * @param string $text Text to be converted |
| 828 | * @param string $variant The target variant code |
| 829 | * @param int $depth Depth of recursion |
| 830 | * @return string Converted text |
| 831 | */ |
| 832 | protected function recursiveConvertTopLevel( $text, $variant, $depth = 0 ) { |
| 833 | $startPos = 0; |
| 834 | $out = ''; |
| 835 | $length = strlen( $text ); |
| 836 | $shouldConvert = !$this->guessVariant( $text, $variant ); |
| 837 | if ( RequestContext::getMain()->getRequest()->getFuzzyBool( 'nolcguess', false ) ) { |
| 838 | $shouldConvert = true; |
| 839 | } |
| 840 | $continue = true; |
| 841 | |
| 842 | $noScript = '<script.*?>.*?<\/script>(*SKIP)(*FAIL)'; |
| 843 | $noStyle = '<style.*?>.*?<\/style>(*SKIP)(*FAIL)'; |
| 844 | $noMath = '<math.*?>.*?<\/math>(*SKIP)(*FAIL)'; |
| 845 | $noSvg = '<svg.*?>.*?<\/svg>(*SKIP)(*FAIL)'; |
| 846 | // phpcs:ignore Generic.Files.LineLength |
| 847 | $noHtml = '<(?:[^>=]*+(?>[^>=]*+=\s*+(?:"[^"]*"|\'[^\']*\'|[^\'">\s]*+))*+[^>=]*+>|.*+)(*SKIP)(*FAIL)'; |
| 848 | while ( $startPos < $length && $continue ) { |
| 849 | $continue = preg_match( |
| 850 | // Only match "-{" outside the html. |
| 851 | "/$noScript|$noStyle|$noMath|$noSvg|$noHtml|-\{/", |
| 852 | $text, |
| 853 | $m, |
| 854 | PREG_OFFSET_CAPTURE, |
| 855 | $startPos |
| 856 | ); |
| 857 | |
| 858 | if ( !$continue ) { |
| 859 | // No more markup, append final segment |
| 860 | $fragment = substr( $text, $startPos ); |
| 861 | $out .= $shouldConvert ? $this->autoConvert( $fragment, $variant ) : $fragment; |
| 862 | return $out; |
| 863 | } |
| 864 | |
| 865 | // Offset of the match of the regex pattern. |
| 866 | $pos = $m[0][1]; |
| 867 | |
| 868 | // Append initial segment |
| 869 | $fragment = substr( $text, $startPos, $pos - $startPos ); |
| 870 | $out .= $shouldConvert ? $this->autoConvert( $fragment, $variant ) : $fragment; |
| 871 | // -{ marker found, not in attribute |
| 872 | // Advance position up to -{ marker. |
| 873 | $startPos = $pos; |
| 874 | // Do recursive conversion |
| 875 | // Note: This passes $startPos by reference, and advances it. |
| 876 | $out .= $this->recursiveConvertRule( $text, $variant, $startPos, $depth + 1 ); |
| 877 | } |
| 878 | return $out; |
| 879 | } |
| 880 | |
| 881 | /** |
| 882 | * Recursively convert text on the inside. |
| 883 | * |
| 884 | * @param string $text Text to be converted |
| 885 | * @param string $variant The target variant code |
| 886 | * @param int &$startPos |
| 887 | * @param int $depth Depth of recursion |
| 888 | * @return string Converted text |
| 889 | */ |
| 890 | protected function recursiveConvertRule( $text, $variant, &$startPos, $depth = 0 ) { |
| 891 | // Quick check (no function calls) |
| 892 | if ( $text[$startPos] !== '-' || $text[$startPos + 1] !== '{' ) { |
| 893 | throw new InvalidArgumentException( __METHOD__ . ': invalid input string' ); |
| 894 | } |
| 895 | |
| 896 | $startPos += 2; |
| 897 | $inner = ''; |
| 898 | $warningDone = false; |
| 899 | $length = strlen( $text ); |
| 900 | |
| 901 | while ( $startPos < $length ) { |
| 902 | $m = false; |
| 903 | preg_match( '/-\{|\}-/', $text, $m, PREG_OFFSET_CAPTURE, $startPos ); |
| 904 | if ( !$m ) { |
| 905 | // Unclosed rule |
| 906 | break; |
| 907 | } |
| 908 | |
| 909 | $token = $m[0][0]; |
| 910 | $pos = $m[0][1]; |
| 911 | |
| 912 | // Markup found |
| 913 | // Append initial segment |
| 914 | $inner .= substr( $text, $startPos, $pos - $startPos ); |
| 915 | |
| 916 | // Advance position |
| 917 | $startPos = $pos; |
| 918 | |
| 919 | switch ( $token ) { |
| 920 | case '-{': |
| 921 | // Check max depth |
| 922 | if ( $depth >= $this->mMaxDepth ) { |
| 923 | $inner .= '-{'; |
| 924 | if ( !$warningDone ) { |
| 925 | $inner .= '<span class="error">' . |
| 926 | wfMessage( 'language-converter-depth-warning' ) |
| 927 | ->numParams( $this->mMaxDepth )->inContentLanguage()->text() . |
| 928 | '</span>'; |
| 929 | $warningDone = true; |
| 930 | } |
| 931 | $startPos += 2; |
| 932 | break; |
| 933 | } |
| 934 | // Recursively parse another rule |
| 935 | $inner .= $this->recursiveConvertRule( $text, $variant, $startPos, $depth + 1 ); |
| 936 | break; |
| 937 | case '}-': |
| 938 | // Apply the rule |
| 939 | $startPos += 2; |
| 940 | $rule = new ConverterRule( $this ); |
| 941 | $rule->parse( $inner, $variant ); |
| 942 | $this->applyManualConv( $rule ); |
| 943 | return $rule->getDisplay(); |
| 944 | default: |
| 945 | throw new UnexpectedValueException( __METHOD__ . ': invalid regex match' ); |
| 946 | } |
| 947 | } |
| 948 | |
| 949 | // Unclosed rule |
| 950 | if ( $startPos < $length ) { |
| 951 | $inner .= substr( $text, $startPos ); |
| 952 | } |
| 953 | $startPos = $length; |
| 954 | return '-{' . $this->autoConvert( $inner, $variant ); |
| 955 | } |
| 956 | |
| 957 | /** @inheritDoc */ |
| 958 | public function findVariantLink( &$link, &$nt, $ignoreOtherCond = false ) { |
| 959 | # If the article has already existed, there is no need to |
| 960 | # check it again. Otherwise it may cause a fault. |
| 961 | if ( $nt instanceof LinkTarget ) { |
| 962 | $nt = Title::castFromLinkTarget( $nt ); |
| 963 | if ( $nt->exists() ) { |
| 964 | return; |
| 965 | } |
| 966 | } |
| 967 | |
| 968 | if ( $nt instanceof PageIdentity && $nt->exists() ) { |
| 969 | return; |
| 970 | } |
| 971 | |
| 972 | $request = RequestContext::getMain()->getRequest(); |
| 973 | |
| 974 | $isredir = $request->getText( 'redirect', 'yes' ); |
| 975 | $action = $request->getText( 'action' ); |
| 976 | if ( $action == 'edit' && $request->getBool( 'redlink' ) ) { |
| 977 | $action = 'view'; |
| 978 | } |
| 979 | $linkconvert = $request->getText( 'linkconvert', 'yes' ); |
| 980 | $disableLinkConversion = |
| 981 | MediaWikiServices::getInstance()->getLanguageConverterFactory() |
| 982 | ->isLinkConversionDisabled(); |
| 983 | $linkBatchFactory = MediaWikiServices::getInstance()->getLinkBatchFactory(); |
| 984 | $linkBatch = $linkBatchFactory->newLinkBatch(); |
| 985 | |
| 986 | $ns = NS_MAIN; |
| 987 | |
| 988 | if ( $disableLinkConversion || |
| 989 | ( !$ignoreOtherCond && |
| 990 | ( $isredir == 'no' |
| 991 | || $action == 'edit' |
| 992 | || $action == 'submit' |
| 993 | || $linkconvert == 'no' ) |
| 994 | ) |
| 995 | ) { |
| 996 | return; |
| 997 | } |
| 998 | |
| 999 | if ( is_object( $nt ) ) { |
| 1000 | $ns = $nt->getNamespace(); |
| 1001 | } |
| 1002 | |
| 1003 | $variants = $this->autoConvertToAllVariants( $link ); |
| 1004 | if ( !$variants ) { // give up |
| 1005 | return; |
| 1006 | } |
| 1007 | |
| 1008 | $titles = []; |
| 1009 | |
| 1010 | foreach ( $variants as $v ) { |
| 1011 | if ( $v != $link ) { |
| 1012 | $varnt = Title::newFromText( $v, $ns ); |
| 1013 | if ( $varnt !== null ) { |
| 1014 | $linkBatch->addObj( $varnt ); |
| 1015 | $titles[] = $varnt; |
| 1016 | } |
| 1017 | } |
| 1018 | } |
| 1019 | |
| 1020 | // fetch all variants in single query |
| 1021 | $linkBatch->execute(); |
| 1022 | |
| 1023 | foreach ( $titles as $varnt ) { |
| 1024 | if ( $varnt->getArticleID() > 0 ) { |
| 1025 | $nt = $varnt; |
| 1026 | $link = $varnt->getText(); |
| 1027 | break; |
| 1028 | } |
| 1029 | } |
| 1030 | } |
| 1031 | |
| 1032 | /** @inheritDoc */ |
| 1033 | public function getExtraHashOptions() { |
| 1034 | $variant = $this->getPreferredVariant(); |
| 1035 | |
| 1036 | return '!' . $variant; |
| 1037 | } |
| 1038 | |
| 1039 | /** @inheritDoc */ |
| 1040 | public function guessVariant( $text, $variant ) { |
| 1041 | return false; |
| 1042 | } |
| 1043 | |
| 1044 | /** |
| 1045 | * Load default conversion tables. |
| 1046 | * |
| 1047 | * @return array<string,ReplacementArray> |
| 1048 | */ |
| 1049 | abstract protected function loadDefaultTables(): array; |
| 1050 | |
| 1051 | /** |
| 1052 | * Load conversion tables either from the cache or the disk. |
| 1053 | * @private |
| 1054 | * @param bool $fromCache Whether to load from cache. Defaults to true. |
| 1055 | */ |
| 1056 | protected function loadTables( $fromCache = true ) { |
| 1057 | $services = MediaWikiServices::getInstance(); |
| 1058 | $languageConverterCacheType = $services |
| 1059 | ->getMainConfig()->get( MainConfigNames::LanguageConverterCacheType ); |
| 1060 | |
| 1061 | if ( $this->mTablesLoaded ) { |
| 1062 | return; |
| 1063 | } |
| 1064 | |
| 1065 | $cache = $services->getObjectCacheFactory()->getInstance( $languageConverterCacheType ); |
| 1066 | $cacheKey = $cache->makeKey( |
| 1067 | 'conversiontables', $this->getMainCode(), |
| 1068 | md5( implode( ',', $this->getVariants() ) ), self::CACHE_VERSION_KEY |
| 1069 | ); |
| 1070 | if ( !$fromCache ) { |
| 1071 | $cache->delete( $cacheKey ); |
| 1072 | } |
| 1073 | $this->mTables = $cache->getWithSetCallback( $cacheKey, $cache::TTL_HOUR * 12, function () { |
| 1074 | // We will first load the default tables |
| 1075 | // then update them using things in MediaWiki:Conversiontable/* |
| 1076 | $tables = $this->loadDefaultTables(); |
| 1077 | foreach ( $this->getVariants() as $var ) { |
| 1078 | $cached = $this->parseCachedTable( $var ); |
| 1079 | $tables[$var]->mergeArray( $cached ); |
| 1080 | } |
| 1081 | |
| 1082 | $this->postLoadTables( $tables ); |
| 1083 | return $tables; |
| 1084 | } ); |
| 1085 | $this->mTablesLoaded = true; |
| 1086 | } |
| 1087 | |
| 1088 | /** |
| 1089 | * Hook for post-processing after conversion tables are loaded. |
| 1090 | * |
| 1091 | * @param array<string,ReplacementArray> &$tables |
| 1092 | */ |
| 1093 | protected function postLoadTables( &$tables ) { |
| 1094 | } |
| 1095 | |
| 1096 | /** |
| 1097 | * Reload the conversion tables. |
| 1098 | * |
| 1099 | * Also used by test suites which need to reset the converter state. |
| 1100 | * |
| 1101 | * Called by ParserTestRunner with the help of TestingAccessWrapper |
| 1102 | */ |
| 1103 | private function reloadTables() { |
| 1104 | if ( $this->mTables ) { |
| 1105 | $this->mTables = []; |
| 1106 | } |
| 1107 | |
| 1108 | $this->mTablesLoaded = false; |
| 1109 | $this->loadTables( false ); |
| 1110 | } |
| 1111 | |
| 1112 | /** |
| 1113 | * Parse the conversion table stored in the cache. |
| 1114 | * |
| 1115 | * The tables should be in blocks of the following form: |
| 1116 | * -{ |
| 1117 | * word => word ; |
| 1118 | * word => word ; |
| 1119 | * ... |
| 1120 | * }- |
| 1121 | * |
| 1122 | * To make the tables more manageable, subpages are allowed |
| 1123 | * and will be parsed recursively if $recursive == true. |
| 1124 | * |
| 1125 | * @param string $code Language code |
| 1126 | * @param string $subpage Subpage name |
| 1127 | * @param bool $recursive Parse subpages recursively? Defaults to true. |
| 1128 | * |
| 1129 | * @return array |
| 1130 | */ |
| 1131 | private function parseCachedTable( $code, $subpage = '', $recursive = true ) { |
| 1132 | static $parsed = []; |
| 1133 | |
| 1134 | $key = 'Conversiontable/' . $code; |
| 1135 | if ( $subpage ) { |
| 1136 | $key .= '/' . $subpage; |
| 1137 | } |
| 1138 | if ( array_key_exists( $key, $parsed ) ) { |
| 1139 | return []; |
| 1140 | } |
| 1141 | |
| 1142 | $parsed[$key] = true; |
| 1143 | |
| 1144 | if ( $subpage === '' ) { |
| 1145 | $messageCache = MediaWikiServices::getInstance()->getMessageCache(); |
| 1146 | $txt = $messageCache->getMsgFromNamespace( $key, $code ); |
| 1147 | } else { |
| 1148 | $txt = false; |
| 1149 | $title = Title::makeTitleSafe( NS_MEDIAWIKI, $key ); |
| 1150 | if ( $title && $title->exists() ) { |
| 1151 | $revision = MediaWikiServices::getInstance() |
| 1152 | ->getRevisionLookup() |
| 1153 | ->getRevisionByTitle( $title ); |
| 1154 | if ( $revision ) { |
| 1155 | $model = $revision->getSlot( |
| 1156 | SlotRecord::MAIN, |
| 1157 | RevisionRecord::RAW |
| 1158 | )->getModel(); |
| 1159 | if ( $model == CONTENT_MODEL_WIKITEXT ) { |
| 1160 | // @phan-suppress-next-line PhanUndeclaredMethod |
| 1161 | $txt = $revision->getContent( |
| 1162 | SlotRecord::MAIN, |
| 1163 | RevisionRecord::RAW |
| 1164 | )->getText(); |
| 1165 | } |
| 1166 | |
| 1167 | // @todo in the future, use a specialized content model, perhaps based on json! |
| 1168 | } |
| 1169 | } |
| 1170 | } |
| 1171 | |
| 1172 | # Nothing to parse if there's no text |
| 1173 | if ( $txt === false || $txt === null || $txt === '' ) { |
| 1174 | return []; |
| 1175 | } |
| 1176 | |
| 1177 | // get all subpage links of the form |
| 1178 | // [[MediaWiki:Conversiontable/zh-xx/...|...]] |
| 1179 | $linkhead = $this->mLangObj->getNsText( NS_MEDIAWIKI ) . |
| 1180 | ':Conversiontable'; |
| 1181 | $subs = StringUtils::explode( '[[', $txt ); |
| 1182 | $sublinks = []; |
| 1183 | foreach ( $subs as $sub ) { |
| 1184 | $link = explode( ']]', $sub, 2 ); |
| 1185 | if ( count( $link ) != 2 ) { |
| 1186 | continue; |
| 1187 | } |
| 1188 | $b = explode( '|', $link[0], 2 ); |
| 1189 | $b = explode( '/', trim( $b[0] ), 3 ); |
| 1190 | if ( count( $b ) == 3 ) { |
| 1191 | $sublink = $b[2]; |
| 1192 | } else { |
| 1193 | $sublink = ''; |
| 1194 | } |
| 1195 | |
| 1196 | if ( $b[0] == $linkhead && $b[1] == $code ) { |
| 1197 | $sublinks[] = $sublink; |
| 1198 | } |
| 1199 | } |
| 1200 | |
| 1201 | // parse the mappings in this page |
| 1202 | $blocks = StringUtils::explode( '-{', $txt ); |
| 1203 | $ret = []; |
| 1204 | $first = true; |
| 1205 | foreach ( $blocks as $block ) { |
| 1206 | if ( $first ) { |
| 1207 | // Skip the part before the first -{ |
| 1208 | $first = false; |
| 1209 | continue; |
| 1210 | } |
| 1211 | $mappings = explode( '}-', $block, 2 )[0]; |
| 1212 | $stripped = str_replace( [ "'", '"', '*', '#' ], '', $mappings ); |
| 1213 | $table = StringUtils::explode( ';', $stripped ); |
| 1214 | foreach ( $table as $t ) { |
| 1215 | $m = explode( '=>', $t, 3 ); |
| 1216 | if ( count( $m ) != 2 ) { |
| 1217 | continue; |
| 1218 | } |
| 1219 | // trim any trailing comments starting with '//' |
| 1220 | $tt = explode( '//', $m[1], 2 ); |
| 1221 | $ret[trim( $m[0] )] = trim( $tt[0] ); |
| 1222 | } |
| 1223 | } |
| 1224 | |
| 1225 | // recursively parse the subpages |
| 1226 | if ( $recursive ) { |
| 1227 | foreach ( $sublinks as $link ) { |
| 1228 | $s = $this->parseCachedTable( $code, $link, $recursive ); |
| 1229 | $ret = $s + $ret; |
| 1230 | } |
| 1231 | } |
| 1232 | return $ret; |
| 1233 | } |
| 1234 | |
| 1235 | /** @inheritDoc */ |
| 1236 | public function markNoConversion( $text, $noParse = false ) { |
| 1237 | # don't mark if already marked |
| 1238 | if ( str_contains( $text, '-{' ) || str_contains( $text, '}-' ) ) { |
| 1239 | return $text; |
| 1240 | } |
| 1241 | |
| 1242 | return "-{R|$text}-"; |
| 1243 | } |
| 1244 | |
| 1245 | /** @inheritDoc */ |
| 1246 | public function convertCategoryKey( $key ) { |
| 1247 | return $key; |
| 1248 | } |
| 1249 | |
| 1250 | /** |
| 1251 | * @param PageIdentity $page Message page |
| 1252 | * |
| 1253 | * @return void |
| 1254 | */ |
| 1255 | public function updateConversionTable( PageIdentity $page ) { |
| 1256 | if ( $page->getNamespace() === NS_MEDIAWIKI ) { |
| 1257 | $t = explode( '/', $page->getDBkey(), 3 ); |
| 1258 | $c = count( $t ); |
| 1259 | if ( $c > 1 && $t[0] == 'Conversiontable' && $this->validateVariant( $t[1] ) ) { |
| 1260 | $this->reloadTables(); |
| 1261 | } |
| 1262 | } |
| 1263 | } |
| 1264 | |
| 1265 | /** |
| 1266 | * Get the cached separator pattern for ConverterRule::parseRules() |
| 1267 | * @return string |
| 1268 | */ |
| 1269 | public function getVarSeparatorPattern() { |
| 1270 | if ( $this->mVarSeparatorPattern === null ) { |
| 1271 | // varsep_pattern for preg_split: |
| 1272 | // The text should be split by ";" only if a valid variant |
| 1273 | // name exists after the markup. |
| 1274 | // For example |
| 1275 | // -{zh-hans:<span style="font-size:120%;">xxx</span>;zh-hant:\ |
| 1276 | // <span style="font-size:120%;">yyy</span>;}- |
| 1277 | // we should split it as: |
| 1278 | // [ |
| 1279 | // [0] => 'zh-hans:<span style="font-size:120%;">xxx</span>' |
| 1280 | // [1] => 'zh-hant:<span style="font-size:120%;">yyy</span>' |
| 1281 | // [2] => '' |
| 1282 | // ] |
| 1283 | $expandedVariants = []; |
| 1284 | foreach ( $this->getVariants() as $variant ) { |
| 1285 | $expandedVariants[ $variant ] = 1; |
| 1286 | // Accept standard BCP 47 names for variants as well. |
| 1287 | $expandedVariants[ LanguageCode::bcp47( $variant ) ] = 1; |
| 1288 | } |
| 1289 | // Accept old deprecated names for variants |
| 1290 | foreach ( LanguageCode::getDeprecatedCodeMapping() as $old => $new ) { |
| 1291 | if ( isset( $expandedVariants[ $new ] ) ) { |
| 1292 | $expandedVariants[ $old ] = 1; |
| 1293 | } |
| 1294 | } |
| 1295 | $expandedVariants = implode( '|', array_keys( $expandedVariants ) ); |
| 1296 | |
| 1297 | $pat = '/;\s*(?='; |
| 1298 | // zh-hans:xxx;zh-hant:yyy |
| 1299 | $pat .= '(?:' . $expandedVariants . ')\s*:'; |
| 1300 | // xxx=>zh-hans:yyy; xxx=>zh-hant:zzz |
| 1301 | $pat .= '|[^;]*?=>\s*(?:' . $expandedVariants . ')\s*:'; |
| 1302 | $pat .= '|\s*$)/'; |
| 1303 | $this->mVarSeparatorPattern = $pat; |
| 1304 | } |
| 1305 | return $this->mVarSeparatorPattern; |
| 1306 | } |
| 1307 | |
| 1308 | /** @inheritDoc */ |
| 1309 | public function hasVariants() { |
| 1310 | return count( $this->getVariants() ) > 1; |
| 1311 | } |
| 1312 | |
| 1313 | /** @inheritDoc */ |
| 1314 | public function hasVariant( $variant ) { |
| 1315 | return $variant && ( $variant === $this->validateVariant( $variant ) ); |
| 1316 | } |
| 1317 | |
| 1318 | /** @inheritDoc */ |
| 1319 | public function convertHtml( $text ) { |
| 1320 | // @phan-suppress-next-line SecurityCheck-DoubleEscaped convert() is documented to return html |
| 1321 | return htmlspecialchars( $this->convert( $text ) ); |
| 1322 | } |
| 1323 | } |
| 1324 | |
| 1325 | /** @deprecated class alias since 1.43 */ |
| 1326 | class_alias( LanguageConverter::class, 'LanguageConverter' ); |