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| 1 | <?php |
| 2 | /** |
| 3 | * MediaWiki math extension |
| 4 | * |
| 5 | * @copyright 2002-2015 various MediaWiki contributors |
| 6 | * @license GPL-2.0-or-later |
| 7 | */ |
| 8 | |
| 9 | namespace MediaWiki\Extension\Math; |
| 10 | |
| 11 | use MediaWiki\Extension\Math\Hooks\HookRunner; |
| 12 | use MediaWiki\Html\Html; |
| 13 | use MediaWiki\Logger\LoggerFactory; |
| 14 | use MediaWiki\MediaWikiServices; |
| 15 | use MediaWiki\SpecialPage\SpecialPage; |
| 16 | use MediaWiki\Title\Title; |
| 17 | use Psr\Log\LoggerInterface; |
| 18 | use StatusValue; |
| 19 | use stdClass; |
| 20 | use Throwable; |
| 21 | use Wikimedia\Mime\XmlTypeCheck; |
| 22 | |
| 23 | /** |
| 24 | * Converts LaTeX to MathML using the mathoid-server |
| 25 | */ |
| 26 | class MathMathML extends MathRenderer { |
| 27 | |
| 28 | /** @var string[] */ |
| 29 | protected $defaultAllowedRootElements = [ 'math' ]; |
| 30 | /** @var string[] */ |
| 31 | protected $restbaseInputTypes = [ 'tex', 'inline-tex', 'chem' ]; |
| 32 | /** @var string[] */ |
| 33 | protected $restbaseRenderingModes = [ MathConfig::MODE_MATHML ]; |
| 34 | /** @var string[] */ |
| 35 | protected $allowedRootElements = []; |
| 36 | /** @var string */ |
| 37 | protected $host; |
| 38 | |
| 39 | /** @var LoggerInterface */ |
| 40 | protected $logger; |
| 41 | |
| 42 | /** @var bool if false MathML output is not validated */ |
| 43 | private $XMLValidation = true; |
| 44 | |
| 45 | /** |
| 46 | * @var string|bool |
| 47 | */ |
| 48 | private $svgPath = false; |
| 49 | |
| 50 | /** @var string|null */ |
| 51 | private $mathoidStyle; |
| 52 | |
| 53 | /** @inheritDoc */ |
| 54 | public function __construct( string $tex = '', array $params = [], $cache = null, $mathConfig = null ) { |
| 55 | global $wgMathMathMLUrl; |
| 56 | parent::__construct( $tex, $params, $cache, $mathConfig ); |
| 57 | $this->setMode( MathConfig::MODE_MATHML ); |
| 58 | $this->host = $wgMathMathMLUrl; |
| 59 | if ( isset( $params['type'] ) ) { |
| 60 | $allowedTypes = [ 'pmml', 'ascii', 'chem' ]; |
| 61 | if ( in_array( $params['type'], $allowedTypes, true ) ) { |
| 62 | $this->inputType = $params['type']; |
| 63 | } |
| 64 | if ( $params['type'] == 'pmml' ) { |
| 65 | $this->setMathml( '<math>' . $tex . '</math>' ); |
| 66 | } |
| 67 | } |
| 68 | if ( !isset( $params['display'] ) && $this->getMathStyle() == 'inlineDisplaystyle' ) { |
| 69 | // default preserve the (broken) layout as it was |
| 70 | $this->tex = '{\\displaystyle ' . $tex . '}'; |
| 71 | } |
| 72 | $this->logger = LoggerFactory::getInstance( 'Math' ); |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * @inheritDoc |
| 77 | */ |
| 78 | public function addTrackingCategories( $parser ) { |
| 79 | parent::addTrackingCategories( $parser ); |
| 80 | if ( $this->hasWarnings() ) { |
| 81 | foreach ( $this->warnings as $warning ) { |
| 82 | if ( isset( $warning->type ) ) { |
| 83 | switch ( $warning->type ) { |
| 84 | case 'mhchem-deprecation': |
| 85 | $parser->addTrackingCategory( 'math-tracking-category-mhchem-deprecation' ); |
| 86 | break; |
| 87 | case 'texvc-deprecation': |
| 88 | $parser->addTrackingCategory( 'math-tracking-category-texvc-deprecation' ); |
| 89 | } |
| 90 | } |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * @param MathRenderer[] $renderers |
| 97 | */ |
| 98 | public static function batchEvaluate( array $renderers ) { |
| 99 | $rbis = []; |
| 100 | foreach ( $renderers as $renderer ) { |
| 101 | $rbi = new MathRestbaseInterface( $renderer->getTex(), $renderer->getInputType() ); |
| 102 | $renderer->setRestbaseInterface( $rbi ); |
| 103 | $rbis[] = $rbi; |
| 104 | } |
| 105 | MathRestbaseInterface::batchEvaluate( $rbis ); |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * Gets the allowed root elements the rendered math tag might have. |
| 110 | * |
| 111 | * @return string[] |
| 112 | */ |
| 113 | public function getAllowedRootElements() { |
| 114 | return $this->allowedRootElements ?: $this->defaultAllowedRootElements; |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * Sets the XML validation. |
| 119 | * If set to false the output of MathML is not validated. |
| 120 | * @param bool $validation |
| 121 | */ |
| 122 | public function setXMLValidation( $validation = true ) { |
| 123 | $this->XMLValidation = $validation; |
| 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Sets the allowed root elements the rendered math tag might have. |
| 128 | * An empty value indicates to use the default settings. |
| 129 | * @param string[] $settings |
| 130 | */ |
| 131 | public function setAllowedRootElements( $settings ) { |
| 132 | $this->allowedRootElements = $settings; |
| 133 | } |
| 134 | |
| 135 | /** @inheritDoc */ |
| 136 | public function render() { |
| 137 | global $wgMathFullRestbaseURL, $wgMathSvgRenderer; |
| 138 | try { |
| 139 | if ( $wgMathSvgRenderer === 'restbase' && |
| 140 | in_array( $this->inputType, $this->restbaseInputTypes, true ) && |
| 141 | in_array( $this->mode, $this->restbaseRenderingModes, true ) |
| 142 | ) { |
| 143 | if ( !$this->rbi ) { |
| 144 | $this->rbi = |
| 145 | new MathRestbaseInterface( $this->getTex(), $this->getInputType() ); |
| 146 | $this->rbi->setPurge( $this->isPurge() ); |
| 147 | } |
| 148 | $rbi = $this->rbi; |
| 149 | if ( $rbi->getSuccess() ) { |
| 150 | $this->mathml = $rbi->getMathML(); |
| 151 | $this->mathoidStyle = $rbi->getMathoidStyle(); |
| 152 | $this->svgPath = $rbi->getFullSvgUrl(); |
| 153 | $this->warnings = $rbi->getWarnings(); |
| 154 | } elseif ( $this->lastError === '' ) { |
| 155 | $this->doCheck(); |
| 156 | } |
| 157 | $this->changed = false; |
| 158 | return $rbi->getSuccess(); |
| 159 | } |
| 160 | if ( $this->renderingRequired() ) { |
| 161 | $renderResult = $this->doRender(); |
| 162 | if ( !$renderResult->isGood() ) { |
| 163 | // TODO: this is a hacky hack, lastError will not exist soon. |
| 164 | $renderError = $renderResult->getErrors()[0]; |
| 165 | $this->lastError = $this->getError( $renderError['message'], ...$renderError['params'] ); |
| 166 | } |
| 167 | return $renderResult->isGood(); |
| 168 | } |
| 169 | return true; |
| 170 | } catch ( Throwable $e ) { |
| 171 | $this->lastError = $this->getError( 'math_mathoid_error', |
| 172 | $wgMathFullRestbaseURL, $e->getMessage() ); |
| 173 | $this->logger->error( $e->getMessage(), [ $e, $this ] ); |
| 174 | return false; |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Helper function to checks if the math tag must be rendered. |
| 180 | * @return bool |
| 181 | */ |
| 182 | private function renderingRequired() { |
| 183 | if ( $this->isPurge() ) { |
| 184 | $this->logger->debug( 'Rerendering was requested.' ); |
| 185 | return true; |
| 186 | } |
| 187 | |
| 188 | $dbres = $this->isInDatabase(); |
| 189 | if ( $dbres ) { |
| 190 | if ( $this->isValidMathML( $this->getMathml() ) ) { |
| 191 | $this->logger->debug( 'Valid MathML entry found in database.' ); |
| 192 | if ( $this->getSvg( 'cached' ) ) { |
| 193 | $this->logger->debug( 'SVG-fallback found in database.' ); |
| 194 | return false; |
| 195 | } else { |
| 196 | $this->logger->debug( 'SVG-fallback missing.' ); |
| 197 | return true; |
| 198 | } |
| 199 | } else { |
| 200 | $this->logger->debug( 'Malformatted entry found in database' ); |
| 201 | return true; |
| 202 | } |
| 203 | } else { |
| 204 | $this->logger->debug( 'No entry found in database.' ); |
| 205 | return true; |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | /** |
| 210 | * Performs a HTTP Post request to the given host. |
| 211 | * Uses $wgMathLaTeXMLTimeout as timeout. |
| 212 | * |
| 213 | * @return StatusValue result with response body as a value |
| 214 | */ |
| 215 | public function makeRequest() { |
| 216 | // TODO: Change the timeout mechanism. |
| 217 | global $wgMathLaTeXMLTimeout; |
| 218 | $post = $this->getPostData(); |
| 219 | $options = [ 'method' => 'POST', 'postData' => $post, 'timeout' => $wgMathLaTeXMLTimeout ]; |
| 220 | $req = MediaWikiServices::getInstance()->getHttpRequestFactory()->create( $this->host, $options, __METHOD__ ); |
| 221 | $status = $req->execute(); |
| 222 | if ( $status->isGood() ) { |
| 223 | return StatusValue::newGood( $req->getContent() ); |
| 224 | } else { |
| 225 | if ( $status->hasMessage( 'http-timed-out' ) ) { |
| 226 | $this->logger->warning( 'Math service request timeout', [ |
| 227 | 'post' => $post, |
| 228 | 'host' => $this->host, |
| 229 | 'timeout' => $wgMathLaTeXMLTimeout |
| 230 | ] ); |
| 231 | return StatusValue::newFatal( 'math_timeout', $this->getModeName(), $this->host ); |
| 232 | } else { |
| 233 | $errormsg = $req->getContent(); |
| 234 | $this->logger->warning( 'Math service request failed', [ |
| 235 | 'post' => $post, |
| 236 | 'host' => $this->host, |
| 237 | 'errormsg' => $errormsg |
| 238 | ] ); |
| 239 | return StatusValue::newFatal( |
| 240 | 'math_invalidresponse', |
| 241 | $this->getModeName(), |
| 242 | $this->host, |
| 243 | $errormsg, |
| 244 | $this->getModeName() |
| 245 | ); |
| 246 | } |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | /** |
| 251 | * Calculates the HTTP POST Data for the request. Depends on the settings |
| 252 | * and the input string only. |
| 253 | * @return string HTTP POST data |
| 254 | */ |
| 255 | public function getPostData() { |
| 256 | $input = $this->getTex(); |
| 257 | if ( $this->inputType == 'pmml' || |
| 258 | ( $this->getMode() == MathConfig::MODE_LATEXML && $this->getMathml() ) |
| 259 | ) { |
| 260 | $out = 'type=mml&q=' . rawurlencode( $this->getMathml() ); |
| 261 | } elseif ( $this->inputType == 'ascii' ) { |
| 262 | $out = 'type=asciimath&q=' . rawurlencode( $input ); |
| 263 | } else { |
| 264 | if ( $this->getMathStyle() === 'inlineDisplaystyle' ) { |
| 265 | // default preserve the (broken) layout as it was |
| 266 | $out = 'type=inline-TeX&q=' . rawurlencode( '{\\displaystyle ' . $input . '}' ); |
| 267 | } elseif ( $this->getMathStyle() === 'inline' ) { |
| 268 | $out = 'type=inline-TeX&q=' . rawurlencode( $input ); |
| 269 | } else { |
| 270 | $out = 'type=tex&q=' . rawurlencode( $input ); |
| 271 | } |
| 272 | } |
| 273 | $this->logger->debug( 'Get post data: ' . $out ); |
| 274 | return $out; |
| 275 | } |
| 276 | |
| 277 | /** |
| 278 | * Does the actual web request to convert TeX to MathML. |
| 279 | * |
| 280 | * @return StatusValue |
| 281 | */ |
| 282 | protected function doRender(): StatusValue { |
| 283 | if ( $this->isEmpty() ) { |
| 284 | $this->logger->debug( 'Rendering was requested, but no TeX string is specified.' ); |
| 285 | return StatusValue::newFatal( 'math_empty_tex' ); |
| 286 | } |
| 287 | $requestStatus = $this->makeRequest(); |
| 288 | if ( $requestStatus->isGood() ) { |
| 289 | $jsonResult = json_decode( $requestStatus->getValue() ); |
| 290 | if ( $jsonResult && json_last_error() === JSON_ERROR_NONE ) { |
| 291 | if ( $jsonResult->success ) { |
| 292 | return $this->processJsonResult( $jsonResult, $this->host ); |
| 293 | } else { |
| 294 | $serviceLog = $jsonResult->log ?? wfMessage( 'math_unknown_error' ) |
| 295 | ->inContentLanguage() |
| 296 | ->escaped(); |
| 297 | $this->logger->warning( 'Mathoid conversion error', [ |
| 298 | 'post' => $this->getPostData(), |
| 299 | 'host' => $this->host, |
| 300 | 'result' => $requestStatus->getValue(), |
| 301 | 'service_log' => $serviceLog |
| 302 | ] ); |
| 303 | return StatusValue::newFatal( 'math_mathoid_error', $this->host, $serviceLog ); |
| 304 | } |
| 305 | } else { |
| 306 | $this->logger->error( 'MathML invalid JSON', [ |
| 307 | 'post' => $this->getPostData(), |
| 308 | 'host' => $this->host, |
| 309 | 'res' => $requestStatus->getValue(), |
| 310 | ] ); |
| 311 | return StatusValue::newFatal( 'math_invalidjson', $this->host ); |
| 312 | } |
| 313 | } else { |
| 314 | return $requestStatus; |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | /** |
| 319 | * Checks if the input is valid MathML, |
| 320 | * and if the root element has the name math |
| 321 | * @param string $XML |
| 322 | * @return bool |
| 323 | */ |
| 324 | public function isValidMathML( $XML ) { |
| 325 | $out = false; |
| 326 | if ( !$this->XMLValidation ) { |
| 327 | return true; |
| 328 | } |
| 329 | |
| 330 | $xmlObject = new XmlTypeCheck( $XML, null, false ); |
| 331 | if ( !$xmlObject->wellFormed ) { |
| 332 | $this->logger->error( |
| 333 | 'XML validation error: ' . var_export( $XML, true ) ); |
| 334 | } else { |
| 335 | $name = $xmlObject->getRootElement(); |
| 336 | $elementSplit = explode( ':', $name ); |
| 337 | $localName = end( $elementSplit ); |
| 338 | if ( in_array( $localName, $this->getAllowedRootElements(), true ) ) { |
| 339 | $out = true; |
| 340 | } else { |
| 341 | $this->logger->error( "Got wrong root element: $name" ); |
| 342 | } |
| 343 | } |
| 344 | return $out; |
| 345 | } |
| 346 | |
| 347 | /** |
| 348 | * @param bool $noRender |
| 349 | * @return Title|string |
| 350 | */ |
| 351 | private function getFallbackImageUrl( $noRender = false ) { |
| 352 | if ( $this->svgPath ) { |
| 353 | return $this->svgPath; |
| 354 | } |
| 355 | return SpecialPage::getTitleFor( 'MathShowImage' )->getLocalURL( [ |
| 356 | 'hash' => $this->getInputHash(), |
| 357 | 'mode' => $this->getMode(), |
| 358 | 'noRender' => $noRender |
| 359 | ] |
| 360 | ); |
| 361 | } |
| 362 | |
| 363 | /** |
| 364 | * Helper function to correct the style information for a |
| 365 | * linked SVG image. |
| 366 | * @param string &$style current style information to be updated |
| 367 | */ |
| 368 | public function correctSvgStyle( &$style ) { |
| 369 | if ( preg_match( '/style="([^"]*)"/', $this->getSvg(), $styles ) ) { |
| 370 | $style .= ' ' . $styles[1]; // merge styles |
| 371 | if ( $this->getMathStyle() === 'display' ) { |
| 372 | // TODO: Improve style cleaning |
| 373 | $style = preg_replace( |
| 374 | '/margin\-(left|right)\:\s*\d+(\%|in|cm|mm|em|ex|pt|pc|px)\;/', '', $style |
| 375 | ); |
| 376 | } |
| 377 | $style = trim( preg_replace( '/position:\s*absolute;\s*left:\s*0px;/', '', $style ), |
| 378 | "; \t\n\r\0\x0B" ) . '; '; |
| 379 | |
| 380 | } |
| 381 | // TODO: Figure out if there is a way to construct |
| 382 | // a SVGReader from a string that represents the SVG |
| 383 | // content |
| 384 | if ( preg_match( "/height=\"(.*?)\"/", $this->getSvg(), $matches ) ) { |
| 385 | $style .= 'height: ' . $matches[1] . '; '; |
| 386 | } |
| 387 | if ( preg_match( "/width=\"(.*?)\"/", $this->getSvg(), $matches ) ) { |
| 388 | $style .= 'width: ' . $matches[1] . ';'; |
| 389 | } |
| 390 | } |
| 391 | |
| 392 | /** |
| 393 | * Gets img tag for math image |
| 394 | * @param bool $noRender if true no rendering will be performed |
| 395 | * if the image is not stored in the database |
| 396 | * @param false|string $classOverride if classOverride |
| 397 | * is false the class name will be calculated by getClassName |
| 398 | * @return string XML the image html tag |
| 399 | */ |
| 400 | protected function getFallbackImage( $noRender = false, $classOverride = false ) { |
| 401 | $attribs = [ |
| 402 | 'src' => $this->getFallbackImageUrl( $noRender ), |
| 403 | 'class' => $classOverride === false ? $this->getClassName( true ) : $classOverride, |
| 404 | ]; |
| 405 | if ( !$this->mathoidStyle ) { |
| 406 | $this->correctSvgStyle( $this->mathoidStyle ); |
| 407 | } |
| 408 | |
| 409 | return Html::element( 'img', $this->getAttributes( 'span', $attribs, [ |
| 410 | 'aria-hidden' => 'true', |
| 411 | 'style' => $this->mathoidStyle, |
| 412 | 'alt' => $this->tex |
| 413 | ] ) ); |
| 414 | } |
| 415 | |
| 416 | /** |
| 417 | * @return string |
| 418 | */ |
| 419 | protected function getMathTableName() { |
| 420 | return 'mathoid'; |
| 421 | } |
| 422 | |
| 423 | /** |
| 424 | * Calculates the default class name for a math element |
| 425 | * @param bool $fallback |
| 426 | * @return string the class name |
| 427 | */ |
| 428 | private function getClassName( $fallback = false ) { |
| 429 | $class = 'mwe-math-'; |
| 430 | if ( $fallback ) { |
| 431 | $class .= 'fallback-image-'; |
| 432 | } else { |
| 433 | $class .= 'mathml-'; |
| 434 | } |
| 435 | if ( $this->getMathStyle() == 'display' ) { |
| 436 | $class .= 'display'; |
| 437 | } else { |
| 438 | $class .= 'inline'; |
| 439 | } |
| 440 | if ( $fallback ) { |
| 441 | // Support 3rd party gadgets and extensions. |
| 442 | $class .= ' mw-invert'; |
| 443 | // Support skins with night theme. |
| 444 | $class .= ' skin-invert'; |
| 445 | } else { |
| 446 | $class .= ' mwe-math-mathml-a11y'; |
| 447 | } |
| 448 | return $class; |
| 449 | } |
| 450 | |
| 451 | /** |
| 452 | * @param bool $svg |
| 453 | * @return string Html output that is embedded in the page |
| 454 | */ |
| 455 | public function getHtmlOutput( bool $svg = true ): string { |
| 456 | $config = MediaWikiServices::getInstance()->getMainConfig(); |
| 457 | $enableLinks = $config->get( "MathEnableFormulaLinks" ); |
| 458 | if ( $this->getMathStyle() === 'display' ) { |
| 459 | $mml_class = 'mwe-math-mathml-display'; |
| 460 | } else { |
| 461 | $mml_class = 'mwe-math-mathml-inline'; |
| 462 | } |
| 463 | $attribs = [ 'class' => 'mwe-math-element' ]; |
| 464 | if ( $this->getID() !== '' ) { |
| 465 | $attribs['id'] = $this->getID(); |
| 466 | } |
| 467 | $hyperlink = null; |
| 468 | if ( isset( $this->params['qid'] ) && preg_match( '/Q\d+/', $this->params['qid'] ) ) { |
| 469 | $attribs['data-qid'] = $this->params['qid']; |
| 470 | $titleObj = SpecialPage::getTitleFor( 'MathWikibase' ); |
| 471 | $hyperlink = $titleObj->getLocalURL( [ 'qid' => $this->params['qid'] ] ); |
| 472 | } |
| 473 | $output = ''; |
| 474 | // MathML has to be wrapped into a div or span in order to be able to hide it. |
| 475 | // Remove displayStyle attributes set by the MathML converter |
| 476 | // (Beginning from Mathoid 0.2.5 block is the default layout.) |
| 477 | $mml = preg_replace( |
| 478 | '/(<math[^>]*)(display|mode)=["\'](inline|block)["\']/', '$1', $this->getMathml() |
| 479 | ); |
| 480 | if ( $this->getMathStyle() == 'display' ) { |
| 481 | $mml = preg_replace( '/<math/', '<math display="block"', $mml ); |
| 482 | } |
| 483 | |
| 484 | if ( $svg ) { |
| 485 | $mml_attribs = [ |
| 486 | 'class' => $this->getClassName(), |
| 487 | 'style' => 'display: none;' |
| 488 | ]; |
| 489 | } else { |
| 490 | $mml_attribs = [ |
| 491 | 'class' => $mml_class, |
| 492 | ]; |
| 493 | } |
| 494 | $output .= Html::rawElement( 'span', $mml_attribs, $mml ); |
| 495 | if ( $svg ) { |
| 496 | $output .= $this->getFallbackImage(); |
| 497 | } |
| 498 | |
| 499 | if ( $hyperlink && $enableLinks ) { |
| 500 | $output = Html::rawElement( 'a', |
| 501 | [ 'href' => $hyperlink, 'style' => 'color:inherit;' ], |
| 502 | $output |
| 503 | ); |
| 504 | } |
| 505 | |
| 506 | return Html::rawElement( 'span', $attribs, $output ); |
| 507 | } |
| 508 | |
| 509 | /** @inheritDoc */ |
| 510 | protected function dbOutArray() { |
| 511 | $out = parent::dbOutArray(); |
| 512 | if ( $this->getMathTableName() === 'mathoid' ) { |
| 513 | $out['math_input'] = $out['math_inputtex']; |
| 514 | unset( $out['math_inputtex'] ); |
| 515 | } |
| 516 | return $out; |
| 517 | } |
| 518 | |
| 519 | /** @inheritDoc */ |
| 520 | protected function dbInArray() { |
| 521 | $out = parent::dbInArray(); |
| 522 | if ( $this->getMathTableName() === 'mathoid' ) { |
| 523 | $out = array_diff( $out, [ 'math_inputtex' ] ); |
| 524 | $out[] = 'math_input'; |
| 525 | } |
| 526 | return $out; |
| 527 | } |
| 528 | |
| 529 | /** @inheritDoc */ |
| 530 | public function initializeFromCache( $rpage ) { |
| 531 | // mathoid allows different input formats |
| 532 | // therefore the column name math_inputtex was changed to math_input |
| 533 | if ( $this->getMathTableName() === 'mathoid' && isset( $rpage['math_input'] ) ) { |
| 534 | $this->userInputTex = $rpage['math_input']; |
| 535 | } |
| 536 | parent::initializeFromCache( $rpage ); |
| 537 | } |
| 538 | |
| 539 | /** |
| 540 | * @param stdClass $jsonResult |
| 541 | * @param string $host name |
| 542 | * |
| 543 | * @return StatusValue |
| 544 | */ |
| 545 | protected function processJsonResult( $jsonResult, $host ): StatusValue { |
| 546 | if ( $this->getMode() == MathConfig::MODE_LATEXML || $this->inputType == 'pmml' || |
| 547 | $this->isValidMathML( $jsonResult->mml ) |
| 548 | ) { |
| 549 | if ( isset( $jsonResult->svg ) ) { |
| 550 | $xmlObject = new XmlTypeCheck( $jsonResult->svg, null, false ); |
| 551 | if ( !$xmlObject->wellFormed ) { |
| 552 | return StatusValue::newFatal( 'math_invalidxml', $host ); |
| 553 | } else { |
| 554 | $this->setSvg( $jsonResult->svg ); |
| 555 | } |
| 556 | } else { |
| 557 | $this->logger->error( 'Missing SVG property in JSON result.' ); |
| 558 | } |
| 559 | if ( $this->getMode() != MathConfig::MODE_LATEXML && $this->inputType != 'pmml' ) { |
| 560 | $this->setMathml( $jsonResult->mml ); |
| 561 | } |
| 562 | // Avoid PHP 7.1 warning from passing $this by reference |
| 563 | $renderer = $this; |
| 564 | ( new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ) )->onMathRenderingResultRetrieved( |
| 565 | $renderer, $jsonResult |
| 566 | ); // Enables debugging of server results |
| 567 | return StatusValue::newGood(); // FIXME: empty? |
| 568 | } else { |
| 569 | return StatusValue::newFatal( 'math_unknown_error', $host ); |
| 570 | } |
| 571 | } |
| 572 | |
| 573 | /** |
| 574 | * @return bool |
| 575 | */ |
| 576 | protected function isEmpty() { |
| 577 | return $this->userInputTex === ''; |
| 578 | } |
| 579 | |
| 580 | } |