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| 1 | <?php |
| 2 | declare( strict_types = 1 ); |
| 3 | |
| 4 | namespace Wikimedia\Parsoid\Config; |
| 5 | |
| 6 | use Liuggio\StatsdClient\Factory\StatsdDataFactoryInterface; |
| 7 | use Monolog\Formatter\LineFormatter; |
| 8 | use Monolog\Handler\ErrorLogHandler; |
| 9 | use Monolog\Handler\StreamHandler; |
| 10 | use Monolog\Logger; |
| 11 | use Psr\Container\ContainerInterface; |
| 12 | use Psr\Container\NotFoundExceptionInterface; |
| 13 | use Psr\Log\LoggerInterface; |
| 14 | use Psr\Log\LogLevel; |
| 15 | use Psr\Log\NullLogger; |
| 16 | use Wikimedia\Assert\Assert; |
| 17 | use Wikimedia\Bcp47Code\Bcp47Code; |
| 18 | use Wikimedia\ObjectFactory\ObjectFactory; |
| 19 | use Wikimedia\Parsoid\Core\ContentMetadataCollector; |
| 20 | use Wikimedia\Parsoid\Core\ContentModelHandler; |
| 21 | use Wikimedia\Parsoid\Core\LinkTarget; |
| 22 | use Wikimedia\Parsoid\DOM\Document; |
| 23 | use Wikimedia\Parsoid\Ext\AnnotationStripper; |
| 24 | use Wikimedia\Parsoid\Ext\ExtensionModule; |
| 25 | use Wikimedia\Parsoid\Ext\ExtensionTagHandler; |
| 26 | use Wikimedia\Parsoid\Ext\Gallery\Gallery; |
| 27 | use Wikimedia\Parsoid\Ext\Indicator\Indicator; |
| 28 | use Wikimedia\Parsoid\Ext\JSON\JSON; |
| 29 | use Wikimedia\Parsoid\Ext\LST\LST; |
| 30 | use Wikimedia\Parsoid\Ext\Nowiki\Nowiki; |
| 31 | use Wikimedia\Parsoid\Ext\Pre\Pre; |
| 32 | use Wikimedia\Parsoid\Utils\DOMUtils; |
| 33 | use Wikimedia\Parsoid\Utils\PHPUtils; |
| 34 | use Wikimedia\Parsoid\Utils\Utils; |
| 35 | use Wikimedia\Parsoid\Wikitext\Consts; |
| 36 | |
| 37 | /** |
| 38 | * Site-level configuration interface for Parsoid |
| 39 | * |
| 40 | * This includes both global configuration and wiki-level configuration. |
| 41 | */ |
| 42 | abstract class SiteConfig { |
| 43 | /** |
| 44 | * FIXME: not private so that ParserTests can reset these variables |
| 45 | * since they reuse site config and other objects between tests for |
| 46 | * efficiency reasons. |
| 47 | * |
| 48 | * @var array|null |
| 49 | */ |
| 50 | protected $mwAliases; |
| 51 | |
| 52 | /** @var array|null */ |
| 53 | private $behaviorSwitches; |
| 54 | |
| 55 | /** @var array|null */ |
| 56 | private $variables; |
| 57 | |
| 58 | /** @var array|null */ |
| 59 | private $mediaOptions; |
| 60 | |
| 61 | /** @var array|null */ |
| 62 | protected $functionSynonyms; |
| 63 | |
| 64 | /** @var string[] */ |
| 65 | private $protocolsRegexes = []; |
| 66 | |
| 67 | /** |
| 68 | * FIXME: not private so that ParserTests can reset these variables |
| 69 | * since they reuse site config and other objects between tests for |
| 70 | * efficiency reasons. |
| 71 | * @var array|null |
| 72 | */ |
| 73 | protected $interwikiMapNoNamespaces; |
| 74 | |
| 75 | /** |
| 76 | * FIXME: not private so that ParserTests can reset these variables |
| 77 | * since they reuse site config and other objects between tests for |
| 78 | * efficiency reasons. |
| 79 | * @var string|null|bool |
| 80 | */ |
| 81 | protected $linkTrailRegex = false; |
| 82 | |
| 83 | /** |
| 84 | * These extension modules provide "core" functionality |
| 85 | * and their implementations live in the Parsoid repo. |
| 86 | * |
| 87 | * @var class-string<ExtensionModule>[] |
| 88 | */ |
| 89 | private static $coreExtModules = [ |
| 90 | // content modules |
| 91 | JSON::class, |
| 92 | // extension tags |
| 93 | Nowiki::class, |
| 94 | Pre::class, |
| 95 | Gallery::class, |
| 96 | Indicator::class, |
| 97 | // The following implementations will move to their own repositories |
| 98 | // soon, but for now are implemented in the Parsoid repo. |
| 99 | LST::class |
| 100 | ]; |
| 101 | |
| 102 | /** |
| 103 | * Array specifying fully qualified class name for Parsoid-compatible extensions |
| 104 | * @var ?array<int,ExtensionModule> |
| 105 | */ |
| 106 | private $extModules = null; |
| 107 | /** |
| 108 | * Private counter to assign IDs to $extModules |
| 109 | * @var int |
| 110 | */ |
| 111 | private $extModuleNextId = 0; |
| 112 | |
| 113 | // phpcs:disable Generic.Files.LineLength.TooLong |
| 114 | |
| 115 | /** |
| 116 | * Register a Parsoid extension module. |
| 117 | * @param string|array{name:string}|array{factory:callable}|array{class:class-string<ExtensionModule>} $configOrSpec |
| 118 | * Either an object factory specification for an ExtensionModule object, |
| 119 | * or else the configuration array which ExtensionModule::getConfig() |
| 120 | * would return. (The latter is preferred, but our internal extensions |
| 121 | * use the former.) |
| 122 | * @return int An integer identifier that can be passed to |
| 123 | * ::unregisterExtensionModule to remove this extension ( |
| 124 | */ |
| 125 | final public function registerExtensionModule( $configOrSpec ): int { |
| 126 | $this->getExtensionModules(); // ensure it's initialized w/ core modules |
| 127 | if ( is_string( $configOrSpec ) || isset( $configOrSpec['class'] ) || isset( $configOrSpec['factory'] ) ) { |
| 128 | // Treat this as an object factory spec for an ExtensionModule |
| 129 | // ObjectFactory::createObject accepts an array, not just a callable (phan bug) |
| 130 | // @phan-suppress-next-line PhanTypeInvalidCallableArraySize |
| 131 | $module = $this->getObjectFactory()->createObject( $configOrSpec, [ |
| 132 | 'allowClassName' => true, |
| 133 | 'assertClass' => ExtensionModule::class, |
| 134 | ] ); |
| 135 | } else { |
| 136 | // Treat this as a configuration array, create a new anonymous |
| 137 | // ExtensionModule object for it. |
| 138 | $module = new class( $configOrSpec ) implements ExtensionModule { |
| 139 | private $config; |
| 140 | |
| 141 | /** @param array $config */ |
| 142 | public function __construct( $config ) { |
| 143 | $this->config = $config; |
| 144 | } |
| 145 | |
| 146 | /** @inheritDoc */ |
| 147 | public function getConfig(): array { |
| 148 | return $this->config; |
| 149 | } |
| 150 | }; |
| 151 | } |
| 152 | $extId = $this->extModuleNextId++; |
| 153 | $this->extModules[$extId] = $module; |
| 154 | // remove cached extConfig to ensure this registration is picked up |
| 155 | $this->extConfig = null; |
| 156 | return $extId; |
| 157 | } |
| 158 | |
| 159 | // phpcs:enable Generic.Files.LineLength.TooLong |
| 160 | |
| 161 | /** |
| 162 | * Unregister a Parsoid extension module. This is typically used |
| 163 | * only for testing purposes in order to reset a shared SiteConfig |
| 164 | * to its original configuration. |
| 165 | * @param int $extId The value returned by the call to |
| 166 | * ::registerExtensionModule() |
| 167 | */ |
| 168 | final public function unregisterExtensionModule( int $extId ): void { |
| 169 | unset( $this->extModules[$extId] ); |
| 170 | $this->extConfig = null; // remove cached extConfig |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Return the set of Parsoid extension modules associated with this |
| 175 | * SiteConfig. |
| 176 | * |
| 177 | * @return ExtensionModule[] |
| 178 | */ |
| 179 | final public function getExtensionModules() { |
| 180 | if ( $this->extModules === null ) { |
| 181 | $this->extModules = []; |
| 182 | foreach ( self::$coreExtModules as $m ) { |
| 183 | $this->extModules[$this->extModuleNextId++] = new $m(); |
| 184 | } |
| 185 | } |
| 186 | return array_values( $this->extModules ); |
| 187 | } |
| 188 | |
| 189 | /** @var LoggerInterface|null */ |
| 190 | protected $logger = null; |
| 191 | |
| 192 | /** @var int */ |
| 193 | protected $iwMatcherBatchSize = 4096; |
| 194 | |
| 195 | /** @var array|null */ |
| 196 | protected $iwMatcher = null; |
| 197 | |
| 198 | /** @var bool */ |
| 199 | protected $addHTMLTemplateParameters = false; |
| 200 | |
| 201 | /** @var bool */ |
| 202 | protected $scrubBidiChars = false; |
| 203 | |
| 204 | /** @var bool */ |
| 205 | protected $linterEnabled = false; |
| 206 | |
| 207 | /** @var ?array */ |
| 208 | protected $extConfig = null; |
| 209 | |
| 210 | /** |
| 211 | * Tag handlers for some extensions currently explicit call unstripNowiki |
| 212 | * first thing in their handlers. They do this to strip <nowiki>..</nowiki> |
| 213 | * wrappers around args when encountered in the {{#tag:...}} parser function. |
| 214 | * However, this strategy won't work for Parsoid which calls the preprocessor |
| 215 | * to get expanded wikitext. In this mode, <nowiki> wrappers won't be stripped |
| 216 | * and this leads to functional differences in parsing and output. |
| 217 | * |
| 218 | * See T203293 and T299103 for more details. |
| 219 | * |
| 220 | * To get around this, T299103 proposes that extensions that require this support |
| 221 | * set a config flag in their Parsoid extension config. On the Parsoid end, we |
| 222 | * then let the legacy parser know of these tags. When such extension tags are |
| 223 | * encountered in the {{#tag:...}} parser function handler (see tagObj function |
| 224 | * in CoreParserFunctions.php), that handler can than automatically strip these |
| 225 | * nowiki wrappers on behalf of the extension. |
| 226 | * |
| 227 | * This serves two purposes. For one, it lets Parsoid support these extensions |
| 228 | * in this nowiki use edge case. For another, extensions that register handlers |
| 229 | * with Parsoid can get rid of explicit calls to unstripNowiki() in the |
| 230 | * tag handlers for the legacy parser. |
| 231 | * |
| 232 | * This property maintains an array of tags that need this support. |
| 233 | * |
| 234 | * @var array an associative array of tag names |
| 235 | */ |
| 236 | private $t299103Tags = []; |
| 237 | |
| 238 | /** |
| 239 | * Base constructor. |
| 240 | * |
| 241 | * This constructor is public because it is used to create mock objects |
| 242 | * in our test suite. |
| 243 | */ |
| 244 | public function __construct() { |
| 245 | } |
| 246 | |
| 247 | /************************************************************************//** |
| 248 | * @name Global config |
| 249 | * @{ |
| 250 | */ |
| 251 | |
| 252 | /** |
| 253 | * General log channel |
| 254 | * @return LoggerInterface |
| 255 | */ |
| 256 | public function getLogger(): LoggerInterface { |
| 257 | if ( $this->logger === null ) { |
| 258 | $this->logger = new NullLogger; |
| 259 | } |
| 260 | return $this->logger; |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * Set the log channel, for debugging |
| 265 | * @param ?LoggerInterface $logger |
| 266 | */ |
| 267 | public function setLogger( ?LoggerInterface $logger ): void { |
| 268 | $this->logger = $logger; |
| 269 | } |
| 270 | |
| 271 | /** |
| 272 | * Default gallery options for this wiki. |
| 273 | * @return array<string,string|int|bool> |
| 274 | */ |
| 275 | public function galleryOptions(): array { |
| 276 | return [ |
| 277 | 'imagesPerRow' => 0, |
| 278 | 'imageWidth' => 120, |
| 279 | 'imageHeight' => 120, |
| 280 | 'captionLength' => true, |
| 281 | 'showBytes' => true, |
| 282 | 'showDimensions' => true, |
| 283 | 'mode' => 'traditional', |
| 284 | ]; |
| 285 | } |
| 286 | |
| 287 | /** |
| 288 | * When processing template parameters, parse them to HTML and add it to the |
| 289 | * template parameters data. |
| 290 | * @return bool |
| 291 | */ |
| 292 | public function addHTMLTemplateParameters(): bool { |
| 293 | return $this->addHTMLTemplateParameters; |
| 294 | } |
| 295 | |
| 296 | /** |
| 297 | * Statistics aggregator, for counting and timing. |
| 298 | * |
| 299 | * @return StatsdDataFactoryInterface|null |
| 300 | */ |
| 301 | public function metrics(): ?StatsdDataFactoryInterface { |
| 302 | return null; |
| 303 | } |
| 304 | |
| 305 | /** |
| 306 | * Increment a counter metric |
| 307 | * @param string $name |
| 308 | * @param array $labels |
| 309 | * @param float $amount |
| 310 | * @return void |
| 311 | */ |
| 312 | abstract public function incrementCounter( string $name, array $labels, float $amount = 1 ); |
| 313 | |
| 314 | /** |
| 315 | * Record a timing metric. |
| 316 | * |
| 317 | * Note that the value should be provided in *milliseconds* even though |
| 318 | * the name of the metric may end (by convention) in `_seconds`. The |
| 319 | * metrics infrastructure will make the appropriate conversion. |
| 320 | * |
| 321 | * @param string $name |
| 322 | * @param float $value A timing value *in milliseconds* |
| 323 | * @param array $labels |
| 324 | * @return void |
| 325 | */ |
| 326 | abstract public function observeTiming( string $name, float $value, array $labels ); |
| 327 | |
| 328 | /** |
| 329 | * If enabled, bidi chars adjacent to category links will be stripped |
| 330 | * in the html -> wt serialization pass. |
| 331 | * @return bool |
| 332 | */ |
| 333 | public function scrubBidiChars(): bool { |
| 334 | return $this->scrubBidiChars; |
| 335 | } |
| 336 | |
| 337 | /** @} */ |
| 338 | |
| 339 | /************************************************************************//** |
| 340 | * @name Wiki config |
| 341 | * @{ |
| 342 | */ |
| 343 | |
| 344 | /** |
| 345 | * Allowed external image URL prefixes. |
| 346 | * |
| 347 | * @return string[] The empty array matches no URLs. The empty string matches |
| 348 | * all URLs. |
| 349 | */ |
| 350 | abstract public function allowedExternalImagePrefixes(): array; |
| 351 | |
| 352 | /** |
| 353 | * Site base URI |
| 354 | * |
| 355 | * This would be the URI found in `<base href="..." />`. |
| 356 | * |
| 357 | * @return string |
| 358 | */ |
| 359 | abstract public function baseURI(): string; |
| 360 | |
| 361 | /** |
| 362 | * Prefix for relative links |
| 363 | * |
| 364 | * Prefix to prepend to a page title to link to that page. |
| 365 | * Intended to be relative to the URI returned by baseURI(). |
| 366 | * |
| 367 | * If possible, keep the default "./" so clients need not know this value |
| 368 | * to extract titles from link hrefs. |
| 369 | * |
| 370 | * @return string |
| 371 | */ |
| 372 | public function relativeLinkPrefix(): string { |
| 373 | return './'; |
| 374 | } |
| 375 | |
| 376 | /** |
| 377 | * Regex matching all double-underscore magic words |
| 378 | * @return string |
| 379 | */ |
| 380 | public function bswPagePropRegexp(): string { |
| 381 | static $bswPagePropRegexp = null; |
| 382 | if ( $bswPagePropRegexp === null ) { |
| 383 | $bswRegexp = $this->bswRegexp(); |
| 384 | $bswPagePropRegexp = |
| 385 | '@(?:^|\\s)mw:PageProp/(?:' . |
| 386 | PHPUtils::reStrip( $bswRegexp, '@' ) . |
| 387 | ')(?=$|\\s)@uDS'; |
| 388 | } |
| 389 | return $bswPagePropRegexp; |
| 390 | } |
| 391 | |
| 392 | /** |
| 393 | * Map a canonical namespace name to its index |
| 394 | * |
| 395 | * @note This replaces canonicalNamespaces |
| 396 | * @param string $name all-lowercase and with underscores rather than spaces. |
| 397 | * @return int|null |
| 398 | */ |
| 399 | abstract public function canonicalNamespaceId( string $name ): ?int; |
| 400 | |
| 401 | /** |
| 402 | * Map a namespace name to its index |
| 403 | * |
| 404 | * @note This replaces canonicalNamespaces |
| 405 | * @param string $name all-lowercase and with underscores rather than spaces. |
| 406 | * @return int|null |
| 407 | */ |
| 408 | abstract public function namespaceId( string $name ): ?int; |
| 409 | |
| 410 | /** |
| 411 | * Map a namespace index to its preferred name |
| 412 | * (with spaces, not underscores). |
| 413 | * |
| 414 | * @note This replaces namespaceNames |
| 415 | * @param int $ns |
| 416 | * @return string|null |
| 417 | */ |
| 418 | abstract public function namespaceName( int $ns ): ?string; |
| 419 | |
| 420 | /** |
| 421 | * Test if a namespace has subpages |
| 422 | * |
| 423 | * @note This replaces namespacesWithSubpages |
| 424 | * @param int $ns |
| 425 | * @return bool |
| 426 | */ |
| 427 | abstract public function namespaceHasSubpages( int $ns ): bool; |
| 428 | |
| 429 | /** |
| 430 | * Return namespace case setting |
| 431 | * @param int $ns |
| 432 | * @return string 'first-letter' or 'case-sensitive' |
| 433 | */ |
| 434 | abstract public function namespaceCase( int $ns ): string; |
| 435 | |
| 436 | /** |
| 437 | * Test if a namespace is a talk namespace |
| 438 | * |
| 439 | * @note This replaces title.getNamespace().isATalkNamespace() |
| 440 | * @param int $ns |
| 441 | * @return bool |
| 442 | */ |
| 443 | public function namespaceIsTalk( int $ns ): bool { |
| 444 | return $ns > 0 && $ns % 2; |
| 445 | } |
| 446 | |
| 447 | /** |
| 448 | * Uppercasing method for titles |
| 449 | * @param string $str |
| 450 | * @return string |
| 451 | */ |
| 452 | public function ucfirst( string $str ): string { |
| 453 | $o = ord( $str ); |
| 454 | if ( $o < 96 ) { // if already uppercase... |
| 455 | return $str; |
| 456 | } elseif ( $o < 128 ) { |
| 457 | if ( $str[0] === 'i' && |
| 458 | in_array( $this->langBcp47()->toBcp47Code(), [ 'az', 'tr', 'kaa', 'kk' ], true ) |
| 459 | ) { |
| 460 | return 'İ' . mb_substr( $str, 1 ); |
| 461 | } |
| 462 | return ucfirst( $str ); // use PHP's ucfirst() |
| 463 | } else { |
| 464 | // fall back to more complex logic in case of multibyte strings |
| 465 | $char = mb_substr( $str, 0, 1 ); |
| 466 | return mb_strtoupper( $char ) . mb_substr( $str, 1 ); |
| 467 | } |
| 468 | } |
| 469 | |
| 470 | /** |
| 471 | * Get the default local name for a special page |
| 472 | * @param string $alias Special page alias |
| 473 | * @return string|null |
| 474 | */ |
| 475 | abstract public function specialPageLocalName( string $alias ): ?string; |
| 476 | |
| 477 | /** |
| 478 | * Treat language links as magic connectors, not inline links |
| 479 | * @return bool |
| 480 | */ |
| 481 | abstract public function interwikiMagic(): bool; |
| 482 | |
| 483 | /** |
| 484 | * Return true if the specified magic link syntax is enabled on this |
| 485 | * wiki. |
| 486 | * @param string $which One of "ISBN", "PMID", or "RFC" |
| 487 | * @return true if the specified magic link type is enabled on this wiki |
| 488 | */ |
| 489 | public function magicLinkEnabled( string $which ): bool { |
| 490 | // This should be an abstract method, but in order to provide |
| 491 | // graceful upgrades, start by defaulting to true for all link types |
| 492 | return true; |
| 493 | } |
| 494 | |
| 495 | /** |
| 496 | * Interwiki link data. |
| 497 | * |
| 498 | * Note that the order of the keys in this array is significant: if more |
| 499 | * than one prefix matches a given URL during html2wt conversion, the |
| 500 | * *first* match is used. If you want `wikitech` to be used instead of |
| 501 | * `labsconsole`, for example, the `'wikitech'=>[....]` key needs to |
| 502 | * enumerate first. |
| 503 | * |
| 504 | * @return array<string,array> Keys are interwiki prefixes, values are arrays with the following keys: |
| 505 | * - prefix: (string) The interwiki prefix, same as the key. |
| 506 | * - url: (string) Target URL, containing a '$1' to be replaced by the interwiki target. |
| 507 | * - protorel: (bool, optional) Whether the url may be accessed by both http:// and https://. |
| 508 | * - local: (bool, optional) Whether the interwiki link is considered local (to the wikifarm). |
| 509 | * - localinterwiki: (bool, optional) Whether the interwiki link points to the current wiki. |
| 510 | * - language: (bool, optional) Whether the interwiki link is a language link. |
| 511 | * - extralanglink: (bool, optional) Whether the interwiki link is an "extra language link". |
| 512 | * - linktext: (string, optional) For "extra language links", the link text. |
| 513 | * (booleans marked "optional" must be omitted if false) |
| 514 | */ |
| 515 | abstract public function interwikiMap(): array; |
| 516 | |
| 517 | /** |
| 518 | * Interwiki link data, after removing items that conflict with namespace names. |
| 519 | * (In case of such conflict, namespace wins, interwiki is ignored.) |
| 520 | * @return array<string,array> See interwikiMap() |
| 521 | */ |
| 522 | public function interwikiMapNoNamespaces(): array { |
| 523 | if ( $this->interwikiMapNoNamespaces === null ) { |
| 524 | $this->interwikiMapNoNamespaces = []; |
| 525 | foreach ( $this->interwikiMap() as $key => $value ) { |
| 526 | if ( $this->namespaceId( (string)$key ) === null ) { |
| 527 | $this->interwikiMapNoNamespaces[$key] = $value; |
| 528 | } |
| 529 | } |
| 530 | } |
| 531 | return $this->interwikiMapNoNamespaces; |
| 532 | } |
| 533 | |
| 534 | /** |
| 535 | * Match interwiki URLs |
| 536 | * @param string $href Link to match against |
| 537 | * @return string[]|null Two values [ string $key, string $target ] on success, null on no match. |
| 538 | */ |
| 539 | public function interwikiMatcher( string $href ): ?array { |
| 540 | if ( $this->iwMatcher === null ) { |
| 541 | $keys = [ [], [] ]; |
| 542 | $patterns = [ [], [] ]; |
| 543 | foreach ( $this->interwikiMapNoNamespaces() as $key => $iw ) { |
| 544 | $key = (string)$key; |
| 545 | $lang = (int)( !empty( $iw['language'] ) ); |
| 546 | |
| 547 | $url = $iw['url']; |
| 548 | $protocolRelative = substr( $url, 0, 2 ) === '//'; |
| 549 | if ( !empty( $iw['protorel'] ) ) { |
| 550 | $url = preg_replace( '/^https?:/', '', $url ); |
| 551 | $protocolRelative = true; |
| 552 | } |
| 553 | |
| 554 | // full-url match pattern |
| 555 | $keys[$lang][] = $key; |
| 556 | $patterns[$lang][] = |
| 557 | // Support protocol-relative URLs |
| 558 | ( $protocolRelative ? '(?:https?:)?' : '' ) |
| 559 | // Convert placeholder to group match |
| 560 | . strtr( preg_quote( $url, '/' ), [ '\\$1' => '(.*?)' ] ); |
| 561 | |
| 562 | if ( !empty( $iw['local'] ) ) { |
| 563 | // ./$interwikiPrefix:$title and |
| 564 | // $interwikiPrefix%3A$title shortcuts |
| 565 | // are recognized and the local wiki forwards |
| 566 | // these shortcuts to the remote wiki |
| 567 | |
| 568 | $keys[$lang][] = $key; |
| 569 | $patterns[$lang][] = '^\\.\\/' . $iw['prefix'] . ':(.*?)'; |
| 570 | |
| 571 | $keys[$lang][] = $key; |
| 572 | $patterns[$lang][] = '^' . $iw['prefix'] . '%3A(.*?)'; |
| 573 | } |
| 574 | } |
| 575 | |
| 576 | // Prefer language matches over non-language matches |
| 577 | $numLangs = count( $keys[1] ); |
| 578 | $keys = array_merge( $keys[1], $keys[0] ); |
| 579 | $patterns = array_merge( $patterns[1], $patterns[0] ); |
| 580 | |
| 581 | // Chunk patterns into reasonably sized regexes |
| 582 | $this->iwMatcher = []; |
| 583 | $batchStart = 0; |
| 584 | $batchLen = 0; |
| 585 | foreach ( $patterns as $i => $pat ) { |
| 586 | $len = strlen( $pat ); |
| 587 | if ( $i !== $batchStart && $batchLen + $len > $this->iwMatcherBatchSize ) { |
| 588 | $this->iwMatcher[] = [ |
| 589 | array_slice( $keys, $batchStart, $i - $batchStart ), |
| 590 | '/^(?:' . implode( '|', array_slice( $patterns, $batchStart, $i - $batchStart ) ) . ')$/Di', |
| 591 | $numLangs - $batchStart, |
| 592 | ]; |
| 593 | $batchStart = $i; |
| 594 | $batchLen = $len; |
| 595 | } else { |
| 596 | $batchLen += $len; |
| 597 | } |
| 598 | } |
| 599 | $i = count( $patterns ); |
| 600 | if ( $i > $batchStart ) { |
| 601 | $this->iwMatcher[] = [ |
| 602 | array_slice( $keys, $batchStart, $i - $batchStart ), |
| 603 | '/^(?:' . implode( '|', array_slice( $patterns, $batchStart, $i - $batchStart ) ) . ')$/Di', |
| 604 | $numLangs - $batchStart, |
| 605 | ]; |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | foreach ( $this->iwMatcher as [ $keys, $regex, $numLangs ] ) { |
| 610 | if ( preg_match( $regex, $href, $m, PREG_UNMATCHED_AS_NULL ) ) { |
| 611 | foreach ( $keys as $i => $key ) { |
| 612 | if ( isset( $m[$i + 1] ) ) { |
| 613 | if ( $i < $numLangs ) { |
| 614 | // Escape language interwikis with a colon |
| 615 | $key = ':' . $key; |
| 616 | } |
| 617 | return [ $key, $m[$i + 1] ]; |
| 618 | } |
| 619 | } |
| 620 | } |
| 621 | } |
| 622 | return null; |
| 623 | } |
| 624 | |
| 625 | /** |
| 626 | * Wiki identifier, for cache keys. |
| 627 | * Should match a key in mwApiMap()? |
| 628 | * @return string |
| 629 | */ |
| 630 | abstract public function iwp(): string; |
| 631 | |
| 632 | /** |
| 633 | * Legal title characters |
| 634 | * |
| 635 | * Regex is intended to match bytes, not Unicode characters. |
| 636 | * |
| 637 | * @return string Regex character class (i.e. the bit that goes inside `[]`) |
| 638 | */ |
| 639 | abstract public function legalTitleChars(): string; |
| 640 | |
| 641 | /** |
| 642 | * Link prefix regular expression. |
| 643 | * @return string|null |
| 644 | */ |
| 645 | abstract public function linkPrefixRegex(): ?string; |
| 646 | |
| 647 | /** |
| 648 | * Return raw link trail regexp from config |
| 649 | * @return string |
| 650 | */ |
| 651 | abstract protected function linkTrail(): string; |
| 652 | |
| 653 | /** |
| 654 | * Link trail regular expression. |
| 655 | * @return string|null |
| 656 | */ |
| 657 | public function linkTrailRegex(): ?string { |
| 658 | if ( $this->linkTrailRegex === false ) { |
| 659 | $trail = $this->linkTrail(); |
| 660 | $trail = str_replace( '(.*)$', '', $trail ); |
| 661 | if ( strpos( $trail, '()' ) !== false ) { |
| 662 | // Empty regex from zh-hans |
| 663 | $this->linkTrailRegex = null; |
| 664 | } else { |
| 665 | $this->linkTrailRegex = $trail; |
| 666 | } |
| 667 | } |
| 668 | return $this->linkTrailRegex; |
| 669 | } |
| 670 | |
| 671 | /** |
| 672 | * Wiki language code. |
| 673 | * @return Bcp47Code BCP-47 language code |
| 674 | */ |
| 675 | abstract public function langBcp47(): Bcp47Code; |
| 676 | |
| 677 | /** |
| 678 | * Main page title, as LinkTarget |
| 679 | * @return LinkTarget |
| 680 | */ |
| 681 | abstract public function mainPageLinkTarget(): LinkTarget; |
| 682 | |
| 683 | /** |
| 684 | * Lookup config |
| 685 | * @param string $key |
| 686 | * @return mixed|null config value for $key, if present or null, if not. |
| 687 | * @deprecated This very broad interface is no longer needed. |
| 688 | */ |
| 689 | abstract public function getMWConfigValue( string $key ); |
| 690 | |
| 691 | /** |
| 692 | * Whether the wiki language is right-to-left |
| 693 | * @return bool |
| 694 | */ |
| 695 | abstract public function rtl(): bool; |
| 696 | |
| 697 | /** |
| 698 | * Whether language converter is enabled for the specified language |
| 699 | * @param Bcp47Code $lang |
| 700 | * @return bool |
| 701 | */ |
| 702 | abstract public function langConverterEnabledBcp47( Bcp47Code $lang ): bool; |
| 703 | |
| 704 | /** |
| 705 | * The URL path to index.php. |
| 706 | * @return string |
| 707 | */ |
| 708 | abstract public function script(): string; |
| 709 | |
| 710 | /** |
| 711 | * FIXME: This is only used to compute the modules path below |
| 712 | * and maybe shouldn't be exposed. |
| 713 | * |
| 714 | * The base wiki path |
| 715 | * @return string |
| 716 | */ |
| 717 | abstract public function scriptpath(): string; |
| 718 | |
| 719 | /** |
| 720 | * The base URL of the server. |
| 721 | * @return string |
| 722 | */ |
| 723 | abstract public function server(): string; |
| 724 | |
| 725 | /** |
| 726 | * Export content metadata via meta tags (and via a stylesheet |
| 727 | * for now to aid some clients). |
| 728 | * |
| 729 | * @param Document $document |
| 730 | * @param ContentMetadataCollector $metadata |
| 731 | * @param string $defaultTitle The default title to display, as an |
| 732 | * unescaped string |
| 733 | * @param Bcp47Code $lang a BCP-47 language code |
| 734 | */ |
| 735 | abstract public function exportMetadataToHeadBcp47( |
| 736 | Document $document, |
| 737 | ContentMetadataCollector $metadata, |
| 738 | string $defaultTitle, |
| 739 | Bcp47Code $lang |
| 740 | ): void; |
| 741 | |
| 742 | /** |
| 743 | * Helper function to create <head> elements from metadata. |
| 744 | * @param Document $document |
| 745 | * @param string $modulesLoadURI |
| 746 | * @param string[] $modules |
| 747 | * @param string[] $moduleStyles |
| 748 | * @param array<string,mixed> $jsConfigVars |
| 749 | * @param string $htmlTitle The display title, as escaped HTML |
| 750 | * @param Bcp47Code $lang a Bcp47Code object |
| 751 | */ |
| 752 | protected function exportMetadataHelper( |
| 753 | Document $document, |
| 754 | string $modulesLoadURI, |
| 755 | array $modules, |
| 756 | array $moduleStyles, |
| 757 | array $jsConfigVars, |
| 758 | string $htmlTitle, |
| 759 | Bcp47Code $lang |
| 760 | ): void { |
| 761 | // $htmlTitle contains the DISPLAYTITLE but it corresponds to the |
| 762 | // value of the ParserOutput *not* the ultimate value which would |
| 763 | // be used in the <h1> tag *nor* the plaintext value which would |
| 764 | // be used for the page <title>. OutputPage does additional |
| 765 | // validation/stripping on the displaytitle value before using it. |
| 766 | // As such we're going to just ignore $htmlTitle for now rather |
| 767 | // than report an incorrect value in the <head> (T324431). |
| 768 | |
| 769 | // JsConfigVars |
| 770 | $content = null; |
| 771 | try { |
| 772 | if ( $jsConfigVars ) { |
| 773 | $content = PHPUtils::jsonEncode( $jsConfigVars ); |
| 774 | } |
| 775 | } catch ( \Exception $e ) { |
| 776 | // Similar to ResourceLoader::makeConfigSetScript. See T289358 |
| 777 | $this->getLogger()->log( |
| 778 | LogLevel::WARNING, |
| 779 | 'JSON serialization of config data failed. ' . |
| 780 | 'This usually means the config data is not valid UTF-8.' |
| 781 | ); |
| 782 | } |
| 783 | if ( $content ) { |
| 784 | DOMUtils::appendToHead( $document, 'meta', [ |
| 785 | 'property' => 'mw:jsConfigVars', |
| 786 | 'content' => $content, |
| 787 | ] ); |
| 788 | } |
| 789 | // Styles from modules returned from preprocessor / parse requests |
| 790 | if ( $modules ) { |
| 791 | // mw:generalModules can be processed via JS (and async) and are usually (but |
| 792 | // not always) JS scripts. |
| 793 | DOMUtils::appendToHead( $document, 'meta', [ |
| 794 | 'property' => 'mw:generalModules', |
| 795 | 'content' => implode( '|', array_unique( $modules ) ) |
| 796 | ] ); |
| 797 | } |
| 798 | // Styles from modules returned from preprocessor / parse requests |
| 799 | if ( $moduleStyles ) { |
| 800 | // mw:moduleStyles are CSS modules that are render-blocking. |
| 801 | DOMUtils::appendToHead( $document, 'meta', [ |
| 802 | 'property' => 'mw:moduleStyles', |
| 803 | 'content' => implode( '|', array_unique( $moduleStyles ) ) |
| 804 | ] ); |
| 805 | } |
| 806 | /* |
| 807 | * While unnecessary for Wikimedia clients, a stylesheet url in |
| 808 | * the <head> is useful for clients like Kiwix and others who |
| 809 | * might not want to process the meta tags to construct the |
| 810 | * resourceloader url. |
| 811 | * |
| 812 | * Given that these clients will be consuming Parsoid HTML outside |
| 813 | * a MediaWiki skin, the clients are effectively responsible for |
| 814 | * their own "skin". But, once again, as a courtesy, we are |
| 815 | * hardcoding the vector skin modules for them. But, note that |
| 816 | * this may cause page elements to render differently than how |
| 817 | * they render on Wikimedia sites with the vector skin since this |
| 818 | * is probably missing a number of other modules. |
| 819 | * |
| 820 | * All that said, note that JS-generated parts of the page will |
| 821 | * still require them to have more intimate knowledge of how to |
| 822 | * process the JS modules. Except for <graph>s, page content |
| 823 | * doesn't require JS modules at this point. So, where these |
| 824 | * clients want to invest in the necessary logic to construct a |
| 825 | * better resourceloader url, they could simply delete / ignore |
| 826 | * this stylesheet. |
| 827 | */ |
| 828 | $moreStyles = array_merge( $moduleStyles, [ |
| 829 | 'mediawiki.skinning.content.parsoid', |
| 830 | // Use the base styles that API output and fallback skin use. |
| 831 | 'mediawiki.skinning.interface', |
| 832 | // Make sure to include contents of user generated styles |
| 833 | // e.g. MediaWiki:Common.css / MediaWiki:Mobile.css |
| 834 | 'site.styles' |
| 835 | ] ); |
| 836 | # need to use MW-internal language code for constructing resource |
| 837 | # loader path. |
| 838 | $langMw = Utils::bcp47ToMwCode( $lang ); |
| 839 | $styleURI = $modulesLoadURI . '?lang=' . $langMw . '&modules=' . |
| 840 | PHPUtils::encodeURIComponent( implode( '|', array_unique( $moreStyles ) ) ) . |
| 841 | '&only=styles&skin=vector'; |
| 842 | DOMUtils::appendToHead( $document, 'link', [ 'rel' => 'stylesheet', 'href' => $styleURI ] ); |
| 843 | } |
| 844 | |
| 845 | /** |
| 846 | * A regexp matching the localized 'REDIRECT' marker for this wiki. |
| 847 | * The regexp should be delimited, but should not have boundary anchors |
| 848 | * or capture groups. |
| 849 | * @return string |
| 850 | */ |
| 851 | abstract public function redirectRegexp(): string; |
| 852 | |
| 853 | /** |
| 854 | * A regexp matching the localized 'Category' prefix for this wiki. |
| 855 | * The regexp should be delimited, but should not have boundary anchors |
| 856 | * or capture groups. |
| 857 | * @return string |
| 858 | */ |
| 859 | abstract public function categoryRegexp(): string; |
| 860 | |
| 861 | /** |
| 862 | * A regexp matching localized behavior switches for this wiki. |
| 863 | * The regexp should be delimited, but should not have boundary anchors |
| 864 | * or capture groups. |
| 865 | * @return string |
| 866 | */ |
| 867 | abstract public function bswRegexp(): string; |
| 868 | |
| 869 | /** |
| 870 | * A regex matching a line containing just whitespace, comments, and |
| 871 | * sol transparent links and behavior switches. |
| 872 | * @return string |
| 873 | */ |
| 874 | public function solTransparentWikitextRegexp(): string { |
| 875 | // cscott sadly says: Note that this depends on the precise |
| 876 | // localization of the magic words of this particular wiki. |
| 877 | static $solTransparentWikitextRegexp = null; |
| 878 | if ( $solTransparentWikitextRegexp === null ) { |
| 879 | $redirect = PHPUtils::reStrip( $this->redirectRegexp(), '@' ); |
| 880 | $category = PHPUtils::reStrip( $this->categoryRegexp(), '@' ); |
| 881 | $bswRegexp = PHPUtils::reStrip( $this->bswRegexp(), '@' ); |
| 882 | $comment = PHPUtils::reStrip( Utils::COMMENT_REGEXP, '@' ); |
| 883 | $solTransparentWikitextRegexp = '@' . |
| 884 | '^[ \t\n\r\0\x0b]*' . |
| 885 | '(?:' . |
| 886 | '(?:' . $redirect . ')' . |
| 887 | '[ \t\n\r\x0c]*(?::[ \t\n\r\x0c]*)?\[\[[^\]]+\]\]' . |
| 888 | ')?' . |
| 889 | '(?:' . |
| 890 | '\[\[' . $category . '\:[^\]]*?\]\]|' . |
| 891 | '__(?:' . $bswRegexp . ')__|' . |
| 892 | $comment . '|' . |
| 893 | '[ \t\n\r\0\x0b]' . |
| 894 | ')*$@'; |
| 895 | } |
| 896 | return $solTransparentWikitextRegexp; |
| 897 | } |
| 898 | |
| 899 | /** |
| 900 | * A regex matching a line containing just comments and |
| 901 | * sol transparent links and behavior switches. |
| 902 | * |
| 903 | * @param bool $addIncludes |
| 904 | * @return string |
| 905 | */ |
| 906 | public function solTransparentWikitextNoWsRegexp( |
| 907 | bool $addIncludes = false |
| 908 | ): string { |
| 909 | // cscott sadly says: Note that this depends on the precise |
| 910 | // localization of the magic words of this particular wiki. |
| 911 | static $solTransparentWikitextNoWsRegexp = null; |
| 912 | if ( $solTransparentWikitextNoWsRegexp === null ) { |
| 913 | $redirect = PHPUtils::reStrip( $this->redirectRegexp(), '@' ); |
| 914 | $category = PHPUtils::reStrip( $this->categoryRegexp(), '@' ); |
| 915 | $bswRegexp = PHPUtils::reStrip( $this->bswRegexp(), '@' ); |
| 916 | $comment = PHPUtils::reStrip( Utils::COMMENT_REGEXP, '@' ); |
| 917 | $solTransparentWikitextNoWsRegexp = '@' . |
| 918 | '((?:' . |
| 919 | '(?:' . $redirect . ')' . |
| 920 | '[ \t\n\r\x0c]*(?::[ \t\n\r\x0c]*)?\[\[[^\]]+\]\]' . |
| 921 | ')?' . |
| 922 | '(?:' . |
| 923 | '\[\[' . $category . '\:[^\]]*?\]\]|' . |
| 924 | '__(?:' . $bswRegexp . ')__|' . |
| 925 | $comment . |
| 926 | // FIXME(SSS): What about onlyinclude and noinclude? |
| 927 | ( $addIncludes ? '|<includeonly>[\S\s]*?</includeonly>' : '' ) . |
| 928 | ')*)@'; |
| 929 | } |
| 930 | return $solTransparentWikitextNoWsRegexp; |
| 931 | } |
| 932 | |
| 933 | /** |
| 934 | * The wiki's time zone offset |
| 935 | * @return int Minutes east of UTC |
| 936 | */ |
| 937 | abstract public function timezoneOffset(): int; |
| 938 | |
| 939 | /** |
| 940 | * Language variant information for the given language (or null if |
| 941 | * unknown). |
| 942 | * @param Bcp47Code $lang The language for which you want variant information |
| 943 | * @return ?array{base:Bcp47Code,fallbacks:Bcp47Code[]} an array with |
| 944 | * two fields: |
| 945 | * - base: (Bcp47Code) Base BCP-47 language code (e.g. "zh") |
| 946 | * - fallbacks: (Bcp47Code[]) Fallback variants, as BCP-47 codes |
| 947 | */ |
| 948 | abstract public function variantsFor( Bcp47Code $lang ): ?array; |
| 949 | |
| 950 | /** |
| 951 | * Default thumbnail width |
| 952 | */ |
| 953 | abstract public function widthOption(): int; |
| 954 | |
| 955 | abstract protected function getVariableIDs(): array; |
| 956 | |
| 957 | abstract protected function getMagicWords(): array; |
| 958 | |
| 959 | /** |
| 960 | * Does the SiteConfig provide precomputed function synonyms? |
| 961 | * If no, the SiteConfig is expected to provide an implementation |
| 962 | * for updateFunctionSynonym. |
| 963 | */ |
| 964 | protected function haveComputedFunctionSynonyms(): bool { |
| 965 | return true; |
| 966 | } |
| 967 | |
| 968 | /** |
| 969 | * Get a list of precomputed function synonyms |
| 970 | */ |
| 971 | protected function getFunctionSynonyms(): array { |
| 972 | return []; |
| 973 | } |
| 974 | |
| 975 | protected function updateFunctionSynonym( string $func, string $magicword, bool $caseSensitive ): void { |
| 976 | throw new \RuntimeException( "Unexpected code path!" ); |
| 977 | } |
| 978 | |
| 979 | private function populateMagicWords() { |
| 980 | if ( !empty( $this->mwAliases ) ) { |
| 981 | return; |
| 982 | } |
| 983 | |
| 984 | $this->mwAliases = $this->behaviorSwitches = $this->variables = $this->mediaOptions = []; |
| 985 | $variablesMap = PHPUtils::makeSet( $this->getVariableIDs() ); |
| 986 | $this->functionSynonyms = $this->getFunctionSynonyms(); |
| 987 | $haveSynonyms = $this->haveComputedFunctionSynonyms(); |
| 988 | foreach ( $this->getMagicWords() as $magicword => $aliases ) { |
| 989 | $caseSensitive = array_shift( $aliases ); |
| 990 | $isVariable = isset( $variablesMap[$magicword] ); |
| 991 | $isMediaOption = preg_match( '/^(img|timedmedia)_/', $magicword ); |
| 992 | foreach ( $aliases as $alias ) { |
| 993 | $this->mwAliases[$magicword][] = $alias; |
| 994 | if ( !$caseSensitive ) { |
| 995 | $alias = mb_strtolower( $alias ); |
| 996 | $this->mwAliases[$magicword][] = $alias; |
| 997 | } |
| 998 | if ( substr( $alias, 0, 2 ) === '__' ) { |
| 999 | $this->behaviorSwitches[$alias] = [ $caseSensitive, $magicword ]; |
| 1000 | } |
| 1001 | if ( $isVariable ) { |
| 1002 | $this->variables[$alias] = $magicword; |
| 1003 | } |
| 1004 | if ( $isMediaOption ) { |
| 1005 | $this->mediaOptions[$alias] = [ $caseSensitive, $magicword ]; |
| 1006 | } |
| 1007 | if ( !$haveSynonyms ) { |
| 1008 | $this->updateFunctionSynonym( $alias, $magicword, (bool)$caseSensitive ); |
| 1009 | } |
| 1010 | } |
| 1011 | } |
| 1012 | } |
| 1013 | |
| 1014 | /** |
| 1015 | * List all magic words by canonical name |
| 1016 | * @return string[][] Keys are canonical names, values are arrays of aliases. |
| 1017 | */ |
| 1018 | public function mwAliases(): array { |
| 1019 | $this->populateMagicWords(); |
| 1020 | return $this->mwAliases; |
| 1021 | } |
| 1022 | |
| 1023 | /** |
| 1024 | * Return canonical magic word for a function hook |
| 1025 | * @param string $str |
| 1026 | * @return string|null |
| 1027 | */ |
| 1028 | public function getMagicWordForFunctionHook( string $str ): ?string { |
| 1029 | $this->populateMagicWords(); |
| 1030 | return $this->functionSynonyms[1][$str] ?? |
| 1031 | # Case insensitive functions |
| 1032 | $this->functionSynonyms[0][mb_strtolower( $str )] ?? null; |
| 1033 | } |
| 1034 | |
| 1035 | /** |
| 1036 | * Return canonical magic word for a variable |
| 1037 | * @param string $str |
| 1038 | * @return string|null |
| 1039 | */ |
| 1040 | public function getMagicWordForVariable( string $str ): ?string { |
| 1041 | $this->populateMagicWords(); |
| 1042 | return $this->variables[$str] ?? null; |
| 1043 | } |
| 1044 | |
| 1045 | private static function getMagicWordCanonicalName( array $mws, string $word ): ?string { |
| 1046 | if ( isset( $mws[$word] ) ) { |
| 1047 | return $mws[$word][1]; |
| 1048 | } |
| 1049 | $mw = $mws[mb_strtolower( $word )] ?? null; |
| 1050 | return ( $mw && !$mw[0] ) ? $mw[1] : null; |
| 1051 | } |
| 1052 | |
| 1053 | /** |
| 1054 | * Return canonical magic word for a media option |
| 1055 | * @param string $word |
| 1056 | * @return string|null |
| 1057 | */ |
| 1058 | public function getMagicWordForMediaOption( string $word ): ?string { |
| 1059 | $this->populateMagicWords(); |
| 1060 | return self::getMagicWordCanonicalName( $this->mediaOptions, $word ); |
| 1061 | } |
| 1062 | |
| 1063 | /** |
| 1064 | * Return canonical magic word for a behavior switch |
| 1065 | * @param string $word |
| 1066 | * @return string|null |
| 1067 | */ |
| 1068 | public function getMagicWordForBehaviorSwitch( string $word ): ?string { |
| 1069 | $this->populateMagicWords(); |
| 1070 | return self::getMagicWordCanonicalName( $this->behaviorSwitches, $word ); |
| 1071 | } |
| 1072 | |
| 1073 | /** |
| 1074 | * Check if a string is a recognized behavior switch. |
| 1075 | * |
| 1076 | * @param string $word |
| 1077 | * @return bool |
| 1078 | */ |
| 1079 | public function isBehaviorSwitch( string $word ): bool { |
| 1080 | return $this->getMagicWordForBehaviorSwitch( $word ) !== null; |
| 1081 | } |
| 1082 | |
| 1083 | /** |
| 1084 | * Convert the internal canonical magic word name to the wikitext alias. |
| 1085 | * @param string $word Canonical magic word name |
| 1086 | * @param string $suggest Suggested alias (used as fallback and preferred choice) |
| 1087 | * @return string |
| 1088 | */ |
| 1089 | public function getMagicWordWT( string $word, string $suggest ): string { |
| 1090 | $aliases = $this->mwAliases()[$word] ?? null; |
| 1091 | if ( !$aliases ) { |
| 1092 | return $suggest; |
| 1093 | } |
| 1094 | $ind = 0; |
| 1095 | if ( $suggest ) { |
| 1096 | $ind = array_search( $suggest, $aliases, true ); |
| 1097 | } |
| 1098 | return $aliases[$ind ?: 0]; |
| 1099 | } |
| 1100 | |
| 1101 | /** |
| 1102 | * Get a regexp matching a localized magic word, given its id. |
| 1103 | * |
| 1104 | * FIXME: misleading function name |
| 1105 | * |
| 1106 | * @param string $id |
| 1107 | * @return string |
| 1108 | */ |
| 1109 | abstract public function getMagicWordMatcher( string $id ): string; |
| 1110 | |
| 1111 | /** |
| 1112 | * Get a matcher function for fetching values out of interpolated magic words, |
| 1113 | * ie those with `$1` in their aliases. |
| 1114 | * |
| 1115 | * The matcher takes a string and returns null if it doesn't match any of |
| 1116 | * the words, or an associative array if it did match: |
| 1117 | * - k: The magic word that matched |
| 1118 | * - v: The value of $1 that was matched |
| 1119 | * (the JS also returned 'a' with the specific alias that matched, but that |
| 1120 | * seems to be unused and so is omitted here) |
| 1121 | * |
| 1122 | * @param string[] $words Magic words to match |
| 1123 | * @return callable |
| 1124 | */ |
| 1125 | abstract protected function getParameterizedAliasMatcher( array $words ): callable; |
| 1126 | |
| 1127 | /** |
| 1128 | * Get a matcher function for fetching values out of interpolated magic words |
| 1129 | * which are media prefix options. |
| 1130 | * |
| 1131 | * The matcher takes a string and returns null if it doesn't match any of |
| 1132 | * the words, or an associative array if it did match: |
| 1133 | * - k: The magic word that matched |
| 1134 | * - v: The value of $1 that was matched |
| 1135 | * (the JS also returned 'a' with the specific alias that matched, but that |
| 1136 | * seems to be unused and so is omitted here) |
| 1137 | * |
| 1138 | * @return callable |
| 1139 | */ |
| 1140 | final public function getMediaPrefixParameterizedAliasMatcher(): callable { |
| 1141 | // PORT-FIXME: this shouldn't be a constant, we should fetch these |
| 1142 | // from the SiteConfig. Further, we probably need a hook here so |
| 1143 | // Parsoid can handle media options defined in extensions... in |
| 1144 | // particular timedmedia_* magic words from Extension:TimedMediaHandler |
| 1145 | $mws = array_keys( Consts::$Media['PrefixOptions'] ); |
| 1146 | return $this->getParameterizedAliasMatcher( $mws ); |
| 1147 | } |
| 1148 | |
| 1149 | /** |
| 1150 | * Get the maximum template depth |
| 1151 | * |
| 1152 | * @return int |
| 1153 | */ |
| 1154 | abstract public function getMaxTemplateDepth(): int; |
| 1155 | |
| 1156 | /** |
| 1157 | * Return name spaces aliases for the NS_SPECIAL namespace |
| 1158 | * @return array |
| 1159 | */ |
| 1160 | abstract protected function getSpecialNSAliases(): array; |
| 1161 | |
| 1162 | /** |
| 1163 | * Return Special Page aliases for a special page name |
| 1164 | * @param string $specialPage |
| 1165 | * @return array |
| 1166 | */ |
| 1167 | abstract protected function getSpecialPageAliases( string $specialPage ): array; |
| 1168 | |
| 1169 | /** |
| 1170 | * Quote a title regex |
| 1171 | * |
| 1172 | * Assumes '/' as the delimiter, and replaces spaces or underscores with |
| 1173 | * `[ _]` so either will be matched. |
| 1174 | * |
| 1175 | * @param string $s |
| 1176 | * @param string $delimiter Defaults to '/' |
| 1177 | * @return string |
| 1178 | */ |
| 1179 | protected static function quoteTitleRe( string $s, string $delimiter = '/' ): string { |
| 1180 | $s = preg_quote( $s, $delimiter ); |
| 1181 | $s = strtr( $s, [ |
| 1182 | ' ' => '[ _]', |
| 1183 | '_' => '[ _]', |
| 1184 | ] ); |
| 1185 | return $s; |
| 1186 | } |
| 1187 | |
| 1188 | /** |
| 1189 | * Matcher for ISBN/RFC/PMID URL patterns, returning the type and number. |
| 1190 | * |
| 1191 | * The match method takes a string and returns false on no match or a tuple |
| 1192 | * like this on match: [ 'RFC', '12345' ] |
| 1193 | * |
| 1194 | * @return callable |
| 1195 | */ |
| 1196 | public function getExtResourceURLPatternMatcher(): callable { |
| 1197 | $nsAliases = implode( '|', array_unique( $this->getSpecialNSAliases() ) ); |
| 1198 | $pageAliases = implode( '|', array_map( [ $this, 'quoteTitleRe' ], |
| 1199 | $this->getSpecialPageAliases( 'Booksources' ) |
| 1200 | ) ); |
| 1201 | |
| 1202 | $pats = [ |
| 1203 | 'ISBN' => '(?:\.\.?/)*(?i:' . $nsAliases . ')(?:%3[Aa]|:)' |
| 1204 | . '(?i:' . $pageAliases . ')(?:%2[Ff]|/)(?P<ISBN>\d+[Xx]?)', |
| 1205 | 'RFC' => '[^/]*//tools\.ietf\.org/html/rfc(?P<RFC>\w+)', |
| 1206 | 'PMID' => '[^/]*//www\.ncbi\.nlm\.nih\.gov/pubmed/(?P<PMID>\w+)\?dopt=Abstract', |
| 1207 | ]; |
| 1208 | // T145590: remove patterns for disabled magic links |
| 1209 | foreach ( array_keys( $pats ) as $v ) { |
| 1210 | if ( !$this->magicLinkEnabled( $v ) ) { |
| 1211 | unset( $pats[$v] ); |
| 1212 | } |
| 1213 | } |
| 1214 | $regex = '!^(?:' . implode( '|', $pats ) . ')$!'; |
| 1215 | return static function ( $text ) use ( $pats, $regex ) { |
| 1216 | if ( preg_match( $regex, $text, $m ) ) { |
| 1217 | foreach ( $pats as $k => $re ) { |
| 1218 | if ( isset( $m[$k] ) && $m[$k] !== '' ) { |
| 1219 | return [ $k, $m[$k] ]; |
| 1220 | } |
| 1221 | } |
| 1222 | } |
| 1223 | return false; |
| 1224 | }; |
| 1225 | } |
| 1226 | |
| 1227 | /** |
| 1228 | * @return bool |
| 1229 | */ |
| 1230 | public function linterEnabled(): bool { |
| 1231 | return $this->linterEnabled; |
| 1232 | } |
| 1233 | |
| 1234 | /** |
| 1235 | * Return the desired linter configuration. These are heuristic values |
| 1236 | * which have hardcoded defaults but could be overridden on a per-wiki |
| 1237 | * basis. |
| 1238 | * @return array{enabled?:string[],disabled?:string[],maxTableColumnHeuristic?:int,maxTableRowsToCheck?:int} |
| 1239 | */ |
| 1240 | public function getLinterSiteConfig(): array { |
| 1241 | return [ |
| 1242 | // Allow list for specific lint types. |
| 1243 | // Takes precedence over block list. |
| 1244 | 'enabled' => null, |
| 1245 | // Block list for specific lint types. |
| 1246 | // Not used if an allow list is set. |
| 1247 | 'disabled' => null, |
| 1248 | // The maximum columns in a table before the table is considered |
| 1249 | // large |
| 1250 | 'maxTableColumnHeuristic' => 5, |
| 1251 | // The maximum rows (header or data) to be checked for the large |
| 1252 | // table lint |
| 1253 | // - If we consider the first N rows to be representative of the |
| 1254 | // table, and the table is well-formed and uniform, it is |
| 1255 | // sufficent to check the first N rows to check if the table is |
| 1256 | // "large". |
| 1257 | // - This heuristic is used together with the |
| 1258 | // 'maxTableColumnHeuristic' to identify "large tables". |
| 1259 | 'maxTableRowsToCheck' => 10, |
| 1260 | // Max length of content covered by 'white-space:nowrap' CSS |
| 1261 | // that we consider "safe" when Tidy is replaced. Beyond that, |
| 1262 | // wikitext will have to be fixed up to manually insert whitespace |
| 1263 | // at the right places. Length in bytes. |
| 1264 | 'tidyWhitespaceBugMaxLength' => 100, |
| 1265 | ]; |
| 1266 | } |
| 1267 | |
| 1268 | /** |
| 1269 | * Serialize ISBN/RFC/PMID URL patterns |
| 1270 | * |
| 1271 | * @param string[] $match As returned by the getExtResourceURLPatternMatcher() matcher |
| 1272 | * @param string $href Fallback link target, if $match is invalid. |
| 1273 | * @param string $content Link text |
| 1274 | * @return string |
| 1275 | */ |
| 1276 | public function makeExtResourceURL( array $match, string $href, string $content ): string { |
| 1277 | $normalized = preg_replace( |
| 1278 | '/[ \x{00A0}\x{1680}\x{2000}-\x{200A}\x{202F}\x{205F}\x{3000}]+/u', ' ', |
| 1279 | Utils::decodeWtEntities( $content ) |
| 1280 | ); |
| 1281 | |
| 1282 | // TODO: T145590 ("Update Parsoid to be compatible with magic links being disabled") |
| 1283 | switch ( $match[0] ) { |
| 1284 | case 'ISBN': |
| 1285 | $normalized = strtoupper( preg_replace( '/[\- \t]/', '', $normalized ) ); |
| 1286 | // validate ISBN length and format, so as not to produce magic links |
| 1287 | // which aren't actually magic |
| 1288 | $valid = preg_match( '/^ISBN(97[89])?\d{9}(\d|X)$/D', $normalized ); |
| 1289 | if ( implode( '', $match ) === $normalized && $valid ) { |
| 1290 | return $content; |
| 1291 | } |
| 1292 | // strip "./" prefix. TODO: Use relativeLinkPrefix() instead? |
| 1293 | $href = PHPUtils::stripPrefix( $href, './' ); |
| 1294 | return "[[$href|$content]]"; |
| 1295 | |
| 1296 | case 'RFC': |
| 1297 | case 'PMID': |
| 1298 | $normalized = preg_replace( '/[ \t]/', '', $normalized ); |
| 1299 | return implode( '', $match ) === $normalized ? $content : "[$href $content]"; |
| 1300 | |
| 1301 | default: |
| 1302 | throw new \InvalidArgumentException( "Invalid match type '{$match[0]}'" ); |
| 1303 | } |
| 1304 | } |
| 1305 | |
| 1306 | /** |
| 1307 | * Get the list of valid protocols |
| 1308 | * @return array |
| 1309 | */ |
| 1310 | abstract protected function getProtocols(): array; |
| 1311 | |
| 1312 | /** |
| 1313 | * Get a regex fragment matching URL protocols, quoted for an exclamation |
| 1314 | * mark delimiter. The case-insensitive option should be used. |
| 1315 | * |
| 1316 | * @param bool $excludeProtRel Whether to exclude protocol-relative URLs |
| 1317 | * @return string |
| 1318 | */ |
| 1319 | public function getProtocolsRegex( bool $excludeProtRel = false ) { |
| 1320 | $excludeProtRel = (int)$excludeProtRel; |
| 1321 | if ( !isset( $this->protocolsRegexes[$excludeProtRel] ) ) { |
| 1322 | $parts = []; |
| 1323 | foreach ( $this->getProtocols() as $protocol ) { |
| 1324 | if ( !$excludeProtRel || $protocol !== '//' ) { |
| 1325 | $parts[] = preg_quote( $protocol, '!' ); |
| 1326 | } |
| 1327 | } |
| 1328 | $this->protocolsRegexes[$excludeProtRel] = implode( '|', $parts ); |
| 1329 | } |
| 1330 | return $this->protocolsRegexes[$excludeProtRel]; |
| 1331 | } |
| 1332 | |
| 1333 | /** |
| 1334 | * Matcher for valid protocols, must be anchored at start of string. |
| 1335 | * @param string $potentialLink |
| 1336 | * @return bool Whether $potentialLink begins with a valid protocol |
| 1337 | */ |
| 1338 | public function hasValidProtocol( string $potentialLink ): bool { |
| 1339 | $re = '!^(?:' . $this->getProtocolsRegex() . ')!i'; |
| 1340 | return (bool)preg_match( $re, $potentialLink ); |
| 1341 | } |
| 1342 | |
| 1343 | /** |
| 1344 | * Matcher for valid protocols, may occur at any point within string. |
| 1345 | * @param string $potentialLink |
| 1346 | * @return bool Whether $potentialLink contains a valid protocol |
| 1347 | */ |
| 1348 | public function findValidProtocol( string $potentialLink ): bool { |
| 1349 | $re = '!(?:\W|^)(?:' . $this->getProtocolsRegex() . ')!i'; |
| 1350 | return (bool)preg_match( $re, $potentialLink ); |
| 1351 | } |
| 1352 | |
| 1353 | /** @} */ |
| 1354 | |
| 1355 | /** |
| 1356 | * Fake timestamp, for unit tests. |
| 1357 | * @return int|null Unix timestamp, or null to not fake it |
| 1358 | */ |
| 1359 | public function fakeTimestamp(): ?int { |
| 1360 | return null; |
| 1361 | } |
| 1362 | |
| 1363 | /** |
| 1364 | * Get an array of defined extension tags, with the lower case name in the |
| 1365 | * key, the value arbitrary. This is the set of extension tags that are |
| 1366 | * configured in M/W core. $coreExtModules may already be part of it, |
| 1367 | * but eventually this distinction will disappear since all extension tags |
| 1368 | * have to be defined against the Parsoid's extension API. |
| 1369 | * |
| 1370 | * @return array |
| 1371 | */ |
| 1372 | abstract protected function getNonNativeExtensionTags(): array; |
| 1373 | |
| 1374 | /** |
| 1375 | * Return an object factory to use when instantiating extensions. |
| 1376 | * (This is assumed to be plumbed up to an appropriate service container.) |
| 1377 | * @return ObjectFactory The object factory to use for extensions |
| 1378 | */ |
| 1379 | public function getObjectFactory(): ObjectFactory { |
| 1380 | // Default implementation returns an object factory with an |
| 1381 | // empty service container. |
| 1382 | return new ObjectFactory( new class() implements ContainerInterface { |
| 1383 | |
| 1384 | /** |
| 1385 | * @param string $id |
| 1386 | * @return never |
| 1387 | */ |
| 1388 | public function get( $id ) { |
| 1389 | throw new class( "Empty service container" ) extends \Error |
| 1390 | implements NotFoundExceptionInterface { |
| 1391 | }; |
| 1392 | } |
| 1393 | |
| 1394 | /** |
| 1395 | * @param string $id |
| 1396 | * @return false |
| 1397 | */ |
| 1398 | public function has( $id ): bool { |
| 1399 | return false; |
| 1400 | } |
| 1401 | } ); |
| 1402 | } |
| 1403 | |
| 1404 | /** |
| 1405 | * FIXME: might benefit from T250230 (caching) but see T270307 -- |
| 1406 | * currently SiteConfig::unregisterExtensionModule() is called |
| 1407 | * during testing, which requires invalidating $this->extConfig. |
| 1408 | * (See also SiteConfig::fakeTimestamp() etc.) We'd probably need |
| 1409 | * to more fully separate/mock the "testing SiteConfig" as well |
| 1410 | * as provide a way for parser options to en/disable individual |
| 1411 | * registered modules before this class can be considered immutable |
| 1412 | * and cached. |
| 1413 | */ |
| 1414 | private function constructExtConfig() { |
| 1415 | $this->extConfig = [ |
| 1416 | 'allTags' => [], |
| 1417 | 'parsoidExtTags' => [], |
| 1418 | 'annotationTags' => [], |
| 1419 | 'domProcessors' => [], |
| 1420 | 'annotationStrippers' => [], |
| 1421 | 'contentModels' => [], |
| 1422 | ]; |
| 1423 | |
| 1424 | // There may be some tags defined by the parent wiki which have no |
| 1425 | // associated parsoid modules; for now we handle these by invoking |
| 1426 | // the legacy parser. |
| 1427 | $this->extConfig['allTags'] = $this->getNonNativeExtensionTags(); |
| 1428 | |
| 1429 | foreach ( $this->getExtensionModules() as $module ) { |
| 1430 | $this->processExtensionModule( $module ); |
| 1431 | } |
| 1432 | } |
| 1433 | |
| 1434 | /** |
| 1435 | * @param string $lowerTagName |
| 1436 | * @return bool |
| 1437 | */ |
| 1438 | public function tagNeedsNowikiStrippedInTagPF( string $lowerTagName ): bool { |
| 1439 | return isset( $this->t299103Tags[$lowerTagName] ); |
| 1440 | } |
| 1441 | |
| 1442 | /** |
| 1443 | * Register a Parsoid-compatible extension |
| 1444 | * @param ExtensionModule $ext |
| 1445 | */ |
| 1446 | protected function processExtensionModule( ExtensionModule $ext ): void { |
| 1447 | Assert::invariant( $this->extConfig !== null, "not yet inited!" ); |
| 1448 | $extConfig = $ext->getConfig(); |
| 1449 | Assert::invariant( |
| 1450 | isset( $extConfig['name'] ), |
| 1451 | "Every extension module must have a name." |
| 1452 | ); |
| 1453 | $name = $extConfig['name']; |
| 1454 | |
| 1455 | // These are extension tag handlers. They have |
| 1456 | // wt2html (sourceToDom), html2wt (domToWikitext), and |
| 1457 | // linter functionality. |
| 1458 | foreach ( $extConfig['tags'] ?? [] as $tagConfig ) { |
| 1459 | $lowerTagName = mb_strtolower( $tagConfig['name'] ); |
| 1460 | $this->extConfig['allTags'][$lowerTagName] = true; |
| 1461 | $this->extConfig['parsoidExtTags'][$lowerTagName] = $tagConfig; |
| 1462 | // Deal with b/c nowiki stripping support needed by some extensions. |
| 1463 | // This register this tag with the legacy parser for |
| 1464 | // implicit nowiki stripping in {{#tag:..}} args for this tag. |
| 1465 | if ( isset( $tagConfig['options']['stripNowiki'] ) ) { |
| 1466 | $this->t299103Tags[$lowerTagName] = true; |
| 1467 | } |
| 1468 | } |
| 1469 | |
| 1470 | if ( isset( $extConfig['annotations'] ) ) { |
| 1471 | $annotationConfig = $extConfig['annotations']; |
| 1472 | $annotationTags = $annotationConfig['tagNames'] ?? $annotationConfig; |
| 1473 | foreach ( $annotationTags ?? [] as $aTag ) { |
| 1474 | $lowerTagName = mb_strtolower( $aTag ); |
| 1475 | $this->extConfig['allTags'][$lowerTagName] = true; |
| 1476 | $this->extConfig['annotationTags'][$lowerTagName] = true; |
| 1477 | } |
| 1478 | if ( isset( $annotationConfig['annotationStripper'] ) ) { |
| 1479 | $obj = $this->getObjectFactory()->createObject( $annotationConfig['annotationStripper'], [ |
| 1480 | 'allowClassName' => true, |
| 1481 | 'assertClass' => AnnotationStripper::class, |
| 1482 | ] ); |
| 1483 | $this->extConfig['annotationStrippers'][$name] = $obj; |
| 1484 | } |
| 1485 | } |
| 1486 | |
| 1487 | // Extension modules may also register dom processors. |
| 1488 | // This is for wt2htmlPostProcessor and html2wtPreProcessor |
| 1489 | // functionality. |
| 1490 | if ( isset( $extConfig['domProcessors'] ) ) { |
| 1491 | $this->extConfig['domProcessors'][$name] = $extConfig['domProcessors']; |
| 1492 | } |
| 1493 | |
| 1494 | foreach ( $extConfig['contentModels'] ?? [] as $cm => $spec ) { |
| 1495 | // For compatibility with mediawiki core, the first |
| 1496 | // registered extension wins. |
| 1497 | if ( isset( $this->extConfig['contentModels'][$cm] ) ) { |
| 1498 | continue; |
| 1499 | } |
| 1500 | $handler = $this->getObjectFactory()->createObject( $spec, [ |
| 1501 | 'allowClassName' => true, |
| 1502 | 'assertClass' => ContentModelHandler::class, |
| 1503 | ] ); |
| 1504 | $this->extConfig['contentModels'][$cm] = $handler; |
| 1505 | } |
| 1506 | } |
| 1507 | |
| 1508 | protected function getExtConfig(): array { |
| 1509 | if ( !$this->extConfig ) { |
| 1510 |