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| 1 | <?php |
| 2 | |
| 3 | declare( strict_types = 1 ); |
| 4 | |
| 5 | namespace Wikimedia\Parsoid\Config\Api; |
| 6 | |
| 7 | use Wikimedia\Parsoid\Config\Api\SiteConfig as ApiSiteConfig; |
| 8 | use Wikimedia\Parsoid\Config\DataAccess as IDataAccess; |
| 9 | use Wikimedia\Parsoid\Config\PageConfig; |
| 10 | use Wikimedia\Parsoid\Config\PageContent; |
| 11 | use Wikimedia\Parsoid\Config\SiteConfig as ISiteConfig; |
| 12 | use Wikimedia\Parsoid\Core\ContentMetadataCollector; |
| 13 | use Wikimedia\Parsoid\Core\ContentMetadataCollectorStringSets as CMCSS; |
| 14 | use Wikimedia\Parsoid\Core\LinkTarget; |
| 15 | use Wikimedia\Parsoid\Mocks\MockPageContent; |
| 16 | use Wikimedia\Parsoid\Utils\PHPUtils; |
| 17 | use Wikimedia\Parsoid\Utils\Title; |
| 18 | use Wikimedia\Parsoid\Utils\TitleValue; |
| 19 | |
| 20 | /** |
| 21 | * DataAccess via MediaWiki's Action API |
| 22 | * |
| 23 | * Note this is intended for testing, not performance. |
| 24 | */ |
| 25 | class DataAccess extends IDataAccess { |
| 26 | |
| 27 | /** @var ApiHelper */ |
| 28 | private $api; |
| 29 | |
| 30 | /** |
| 31 | * @var bool Should we strip the protocol from returned URLs? |
| 32 | * Generally this should be true, since the protocol of the API |
| 33 | * request doesn't necessarily match the protocol of article |
| 34 | * access; ie, we could be using https to access the API but emit |
| 35 | * article content which can be read with http. But for running |
| 36 | * parserTests, we need to include the protocol in order to match |
| 37 | * the parserTest configuration in core. |
| 38 | */ |
| 39 | private $stripProto; |
| 40 | |
| 41 | /** |
| 42 | * @name Caching |
| 43 | * @todo Someone should librarize MediaWiki core's MapCacheLRU so we can |
| 44 | * pull it in via composer and use it here. |
| 45 | * @{ |
| 46 | */ |
| 47 | |
| 48 | private const MAX_CACHE_LEN = 100; |
| 49 | |
| 50 | /** |
| 51 | * @var array |
| 52 | */ |
| 53 | private $cache = []; |
| 54 | |
| 55 | private ISiteConfig $siteConfig; |
| 56 | |
| 57 | /** |
| 58 | * Get from cache |
| 59 | * @param string $key |
| 60 | * @return mixed |
| 61 | */ |
| 62 | private function getCache( string $key ) { |
| 63 | if ( isset( $this->cache[$key] ) ) { |
| 64 | $ret = $this->cache[$key]; |
| 65 | // The LRU cache uses position in the array to indicate recency, so |
| 66 | // move the accessed key to the end. |
| 67 | unset( $this->cache[$key] ); |
| 68 | $this->cache[$key] = $ret; |
| 69 | return $ret; |
| 70 | } |
| 71 | return null; |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * Set a value into cache |
| 76 | * @param string $key |
| 77 | * @param mixed $value Not null. |
| 78 | */ |
| 79 | private function setCache( string $key, $value ): void { |
| 80 | if ( isset( $this->cache[$key] ) ) { |
| 81 | // The LRU cache uses position in the array to indicate recency, so |
| 82 | // remove the old entry so the new version goes at the end. |
| 83 | unset( $this->cache[$key] ); |
| 84 | } elseif ( count( $this->cache ) >= self::MAX_CACHE_LEN ) { |
| 85 | reset( $this->cache ); |
| 86 | $evictKey = key( $this->cache ); |
| 87 | unset( $this->cache[$evictKey] ); |
| 88 | } |
| 89 | $this->cache[$key] = $value; |
| 90 | } |
| 91 | |
| 92 | /** @} */ |
| 93 | |
| 94 | /** |
| 95 | * @param ApiHelper $api |
| 96 | * @param ISiteConfig $siteConfig |
| 97 | * @param array $opts |
| 98 | */ |
| 99 | public function __construct( ApiHelper $api, ISiteConfig $siteConfig, array $opts ) { |
| 100 | $this->api = $api; |
| 101 | $this->siteConfig = $siteConfig; |
| 102 | $this->stripProto = $opts['stripProto'] ?? true; |
| 103 | } |
| 104 | |
| 105 | /** @inheritDoc */ |
| 106 | public function getPageInfo( $pageConfigOrTitle, array $titles ): array { |
| 107 | $contextTitle = $pageConfigOrTitle instanceof PageConfig ? |
| 108 | $pageConfigOrTitle->getLinkTarget() : $pageConfigOrTitle; |
| 109 | |
| 110 | if ( !$titles ) { |
| 111 | return []; |
| 112 | } |
| 113 | |
| 114 | $ret = []; |
| 115 | $pageConfigTitle = $this->toPrefixedText( $contextTitle ); |
| 116 | foreach ( array_chunk( $titles, 50 ) as $batch ) { |
| 117 | $data = $this->api->makeRequest( [ |
| 118 | 'action' => 'query', |
| 119 | 'prop' => 'info', |
| 120 | 'inprop' => 'linkclasses', |
| 121 | 'inlinkcontext' => $pageConfigTitle, |
| 122 | 'titles' => implode( '|', $batch ), |
| 123 | ] )['query']; |
| 124 | $norm = []; |
| 125 | if ( isset( $data['normalized'] ) ) { |
| 126 | foreach ( $data['normalized'] as $n ) { |
| 127 | $from = $n['from']; |
| 128 | if ( $n['fromencoded'] ) { |
| 129 | $from = rawurldecode( $from ); |
| 130 | } |
| 131 | $norm[$from] = $n['to']; |
| 132 | } |
| 133 | } |
| 134 | $pages = []; |
| 135 | foreach ( $data['pages'] as $p ) { |
| 136 | $pages[$p['title']] = $p; |
| 137 | } |
| 138 | foreach ( $batch as $title ) { |
| 139 | $ttitle = $title; |
| 140 | while ( isset( $norm[$ttitle] ) ) { |
| 141 | $ttitle = $norm[$ttitle]; |
| 142 | } |
| 143 | $page = $pages[$ttitle] ?? []; |
| 144 | $ret[$title] = [ |
| 145 | 'pageId' => $page['pageid'] ?? null, |
| 146 | 'revId' => $page['lastrevid'] ?? null, |
| 147 | 'missing' => $page['missing'] ?? false, |
| 148 | 'known' => ( $page['known'] ?? false ), |
| 149 | 'redirect' => $page['redirect'] ?? false, |
| 150 | 'linkclasses' => $page['linkclasses'] ?? [], |
| 151 | 'invalid' => $page['invalid'] ?? false, |
| 152 | ]; |
| 153 | if ( !( $ret[$title]['missing'] || $ret[$title]['invalid'] ) ) { |
| 154 | $ret[$title]['known'] = true; |
| 155 | } |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | return $ret; |
| 160 | } |
| 161 | |
| 162 | /** @inheritDoc */ |
| 163 | public function getFileInfo( PageConfig $pageConfig, array $files ): array { |
| 164 | $pageConfigTitle = $this->toPrefixedText( $pageConfig->getLinkTarget() ); |
| 165 | $sc = $this->siteConfig; |
| 166 | if ( $sc instanceof ApiSiteConfig && $sc->hasVideoInfo() ) { |
| 167 | $prefix = "vi"; |
| 168 | $propName = "videoinfo"; |
| 169 | } else { |
| 170 | $prefix = "ii"; |
| 171 | $propName = "imageinfo"; |
| 172 | } |
| 173 | $apiArgs2 = [ |
| 174 | 'action' => 'query', |
| 175 | 'format' => 'json', |
| 176 | 'formatversion' => 2, |
| 177 | 'rawcontinue' => 1, |
| 178 | 'prop' => $propName, |
| 179 | "{$prefix}badfilecontexttitle" => $pageConfigTitle, |
| 180 | "{$prefix}prop" => implode( '|', [ |
| 181 | 'mediatype', 'mime', 'size', 'url', 'badfile', 'sha1', 'timestamp' |
| 182 | ] ) |
| 183 | ]; |
| 184 | if ( $prefix === 'vi' ) { |
| 185 | $apiArgs2["viprop"] .= '|derivatives|timedtext'; |
| 186 | } |
| 187 | $ret = []; |
| 188 | foreach ( $files as $file ) { |
| 189 | $apiArgs = $apiArgs2; // Copy since we modify it |
| 190 | $name = $file[0]; |
| 191 | $dims = $file[1]; |
| 192 | |
| 193 | $imgNS = $sc->namespaceName( $sc->canonicalNamespaceId( 'file' ) ); |
| 194 | $apiArgs['titles'] = "$imgNS:$name"; |
| 195 | $needsWidth = isset( $dims['page'] ) || isset( $dims['lang'] ); |
| 196 | if ( isset( $dims['width'] ) ) { |
| 197 | $apiArgs["{$prefix}urlwidth"] = $dims['width']; |
| 198 | if ( $needsWidth ) { |
| 199 | if ( isset( $dims['page'] ) ) { // PDF |
| 200 | $apiArgs["{$prefix}urlparam"] = "page{$dims['page']}-{$dims['width']}px"; |
| 201 | } elseif ( isset( $dims['lang'] ) ) { // SVG |
| 202 | $apiArgs["{$prefix}urlparam"] = "lang{$dims['lang']}-{$dims['width']}px"; |
| 203 | } |
| 204 | $needsWidth = false; |
| 205 | } |
| 206 | } |
| 207 | if ( isset( $dims['height'] ) ) { |
| 208 | $apiArgs["{$prefix}urlheight"] = $dims['height']; |
| 209 | } |
| 210 | if ( isset( $dims['seek'] ) ) { |
| 211 | $apiArgs["{$prefix}urlparam"] = "seek={$dims['seek']}"; |
| 212 | } |
| 213 | |
| 214 | do { |
| 215 | $data = $this->api->makeRequest( $apiArgs ); |
| 216 | // Expect exactly 1 row |
| 217 | $fileinfo = $data['query']['pages'][0][$propName][0]; |
| 218 | // Corner case: if page is set, the core ImageInfo API doesn't |
| 219 | // respect it *unless* width is set as well. So repeat the |
| 220 | // request if necessary. |
| 221 | if ( isset( $fileinfo['pagecount'] ) && !isset( $dims['page'] ) ) { |
| 222 | $dims['page'] = 1; # also ensures we won't get here again |
| 223 | $needsWidth = true; |
| 224 | } |
| 225 | if ( $needsWidth && !isset( $fileinfo['filemissing'] ) ) { |
| 226 | $needsWidth = false; # ensure we won't get here again |
| 227 | $width = $fileinfo['width']; |
| 228 | $apiArgs["{$prefix}urlwidth"] = $width; |
| 229 | if ( isset( $dims['page'] ) ) { // PDF |
| 230 | $apiArgs["{$prefix}urlparam"] = "page{$dims['page']}-{$width}px"; |
| 231 | } elseif ( isset( $dims['lang'] ) ) { // SVG |
| 232 | $apiArgs["{$prefix}urlparam"] = "lang{$dims['lang']}-{$width}px"; |
| 233 | } |
| 234 | continue; |
| 235 | } |
| 236 | break; |
| 237 | } while ( true ); |
| 238 | |
| 239 | if ( isset( $fileinfo['filemissing'] ) ) { |
| 240 | $fileinfo = null; |
| 241 | } else { |
| 242 | $fileinfo['badFile'] = $data['query']['pages'][0]['badfile']; |
| 243 | $this->stripProto( $fileinfo, 'url' ); |
| 244 | $this->stripProto( $fileinfo, 'thumburl' ); |
| 245 | $this->stripProto( $fileinfo, 'descriptionurl' ); |
| 246 | $this->stripProto( $fileinfo, 'descriptionshorturl' ); |
| 247 | foreach ( $fileinfo['responsiveUrls'] ?? [] as $density => $url ) { |
| 248 | $this->stripProto( $fileinfo['responsiveUrls'], (string)$density ); |
| 249 | } |
| 250 | if ( $prefix === 'vi' ) { |
| 251 | foreach ( $fileinfo['thumbdata']['derivatives'] ?? [] as $j => $d ) { |
| 252 | $this->stripProto( $fileinfo['thumbdata']['derivatives'][$j], 'src' ); |
| 253 | } |
| 254 | foreach ( $fileinfo['thumbdata']['timedtext'] ?? [] as $j => $d ) { |
| 255 | $this->stripProto( $fileinfo['thumbdata']['timedtext'][$j], 'src' ); |
| 256 | } |
| 257 | } |
| 258 | } |
| 259 | $ret[] = $fileinfo; |
| 260 | } |
| 261 | return $ret; |
| 262 | } |
| 263 | |
| 264 | /** |
| 265 | * Convert the given URL into protocol-relative form. |
| 266 | * |
| 267 | * @param ?array &$obj |
| 268 | * @param string $key |
| 269 | */ |
| 270 | private function stripProto( ?array &$obj, string $key ): void { |
| 271 | if ( $obj !== null && !empty( $obj[$key] ) && $this->stripProto ) { |
| 272 | $obj[$key] = preg_replace( '#^https?://#', '//', $obj[$key] ); |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | /** |
| 277 | * Transfer the metadata returned in an API result into our |
| 278 | * ContentMetadataCollector. |
| 279 | * @param array $data |
| 280 | * @param ContentMetadataCollector $metadata |
| 281 | */ |
| 282 | private function mergeMetadata( array $data, ContentMetadataCollector $metadata ): void { |
| 283 | foreach ( ( $data['categories'] ?? [] ) as $c ) { |
| 284 | $tv = TitleValue::tryNew( |
| 285 | 14, // NS_CATEGORY, |
| 286 | $c['category'] |
| 287 | ); |
| 288 | $metadata->addCategory( $tv, $c['sortkey'] ); |
| 289 | } |
| 290 | $metadata->appendOutputStrings( CMCSS::MODULE, $data['modules'] ?? [] ); |
| 291 | $metadata->appendOutputStrings( CMCSS::MODULE_STYLE, $data['modulestyles'] ?? [] ); |
| 292 | foreach ( ( $data['jsconfigvars'] ?? [] ) as $key => $value ) { |
| 293 | $strategy = 'write-once'; |
| 294 | if ( is_array( $value ) ) { |
| 295 | // Strategy value will be exposed by change |
| 296 | // I974d9ecfb4ca8b22361d25c4c70fc5e55c39d5ed in core. |
| 297 | $strategy = $value['_mw-strategy'] ?? 'write-once'; |
| 298 | unset( $value['_mw-strategy'] ); |
| 299 | } |
| 300 | if ( $strategy === 'union' ) { |
| 301 | foreach ( $value as $item => $ignore ) { |
| 302 | $metadata->appendJsConfigVar( $key, $item ); |
| 303 | } |
| 304 | } else { |
| 305 | $metadata->setJsConfigVar( $key, $value ); |
| 306 | } |
| 307 | } |
| 308 | foreach ( ( $data['externallinks'] ?? [] ) as $url ) { |
| 309 | $metadata->addExternalLink( $url ); |
| 310 | } |
| 311 | foreach ( ( $data['properties'] ?? [] ) as $name => $value ) { |
| 312 | if ( is_string( $value ) ) { |
| 313 | $metadata->setUnsortedPageProperty( $name, $value ); |
| 314 | } elseif ( is_numeric( $value ) ) { |
| 315 | $metadata->setNumericPageProperty( $name, $value ); |
| 316 | } elseif ( is_bool( $value ) ) { |
| 317 | // Deprecated back-compat |
| 318 | $metadata->setNumericPageProperty( $name, (int)$value ); |
| 319 | } else { |
| 320 | // Non-scalar values deprecatedin 1.42; drop them. |
| 321 | } |
| 322 | } |
| 323 | } |
| 324 | |
| 325 | /** @inheritDoc */ |
| 326 | public function parseWikitext( |
| 327 | PageConfig $pageConfig, |
| 328 | ContentMetadataCollector $metadata, |
| 329 | string $wikitext |
| 330 | ): string { |
| 331 | $revid = $pageConfig->getRevisionId(); |
| 332 | $pageConfigTitle = $this->toPrefixedText( $pageConfig->getLinkTarget() ); |
| 333 | $key = implode( ':', [ 'parse', md5( $pageConfigTitle ), md5( $wikitext ), $revid ] ); |
| 334 | $data = $this->getCache( $key ); |
| 335 | if ( $data === null ) { |
| 336 | $params = [ |
| 337 | 'action' => 'parse', |
| 338 | 'title' => $pageConfigTitle, |
| 339 | 'text' => $wikitext, |
| 340 | 'contentmodel' => 'wikitext', |
| 341 | 'prop' => 'text|modules|jsconfigvars|categories|properties|externallinks', |
| 342 | 'disablelimitreport' => 1, |
| 343 | 'wrapoutputclass' => '', |
| 344 | 'showstrategykeys' => 1, |
| 345 | ]; |
| 346 | if ( $revid !== null ) { |
| 347 | $params['revid'] = $revid; |
| 348 | } |
| 349 | $data = $this->api->makeRequest( $params )['parse']; |
| 350 | $this->setCache( $key, $data ); |
| 351 | } |
| 352 | $this->mergeMetadata( $data, $metadata ); |
| 353 | return $data['text']; # HTML |
| 354 | } |
| 355 | |
| 356 | /** @inheritDoc */ |
| 357 | public function preprocessWikitext( |
| 358 | PageConfig $pageConfig, |
| 359 | ContentMetadataCollector $metadata, |
| 360 | string $wikitext |
| 361 | ): string { |
| 362 | $revid = $pageConfig->getRevisionId(); |
| 363 | $pageConfigTitle = $this->toPrefixedText( $pageConfig->getLinkTarget() ); |
| 364 | $key = implode( ':', [ 'preprocess', md5( $pageConfigTitle ), md5( $wikitext ), $revid ] ); |
| 365 | $data = $this->getCache( $key ); |
| 366 | if ( $data === null ) { |
| 367 | $params = [ |
| 368 | 'action' => 'expandtemplates', |
| 369 | 'title' => $pageConfigTitle, |
| 370 | 'text' => $wikitext, |
| 371 | 'prop' => 'wikitext|modules|jsconfigvars|categories|properties', |
| 372 | 'showstrategykeys' => 1, |
| 373 | ]; |
| 374 | if ( $revid !== null ) { |
| 375 | $params['revid'] = $revid; |
| 376 | } |
| 377 | $data = $this->api->makeRequest( $params )['expandtemplates']; |
| 378 | $this->setCache( $key, $data ); |
| 379 | } |
| 380 | |
| 381 | $this->mergeMetadata( $data, $metadata ); |
| 382 | |
| 383 | return $data['wikitext']; |
| 384 | } |
| 385 | |
| 386 | /** @inheritDoc */ |
| 387 | public function fetchTemplateSource( |
| 388 | PageConfig $pageConfig, LinkTarget $title |
| 389 | ): ?PageContent { |
| 390 | $title = $this->toPrefixedText( $title ); |
| 391 | $key = implode( ':', [ 'content', md5( $title ) ] ); |
| 392 | $ret = $this->getCache( $key ); |
| 393 | if ( $ret === null ) { |
| 394 | $params = [ |
| 395 | 'action' => 'query', |
| 396 | 'prop' => 'revisions', |
| 397 | 'rvprop' => 'content', |
| 398 | 'rvslots' => '*', |
| 399 | 'titles' => $title, |
| 400 | 'rvlimit' => 1, |
| 401 | ]; |
| 402 | |
| 403 | $data = $this->api->makeRequest( $params ); |
| 404 | $pageData = $data['query']['pages'][0]; |
| 405 | if ( isset( $pageData['missing'] ) ) { |
| 406 | return null; |
| 407 | } else { |
| 408 | $ret = $pageData['revisions'][0]['slots']; |
| 409 | // PORT-FIXME set the redirect field if needed |
| 410 | $this->setCache( $key, $ret ); |
| 411 | } |
| 412 | } |
| 413 | return new MockPageContent( $ret ); |
| 414 | } |
| 415 | |
| 416 | /** @inheritDoc */ |
| 417 | public function fetchTemplateData( PageConfig $pageConfig, LinkTarget $title ): ?array { |
| 418 | $title = $this->toPrefixedText( $title ); |
| 419 | $key = implode( ':', [ 'templatedata', md5( $title ) ] ); |
| 420 | $ret = $this->getCache( $key ); |
| 421 | if ( $ret === null ) { |
| 422 | $data = $this->api->makeRequest( [ |
| 423 | 'action' => 'templatedata', |
| 424 | 'includeMissingTitles' => 1, |
| 425 | 'titles' => $title, |
| 426 | 'redirects' => 1, |
| 427 | ] )['pages']; |
| 428 | $ret = reset( $data ); |
| 429 | $this->setCache( $key, $ret ); |
| 430 | } |
| 431 | return $ret; |
| 432 | } |
| 433 | |
| 434 | /** @inheritDoc */ |
| 435 | public function logLinterData( PageConfig $pageConfig, array $lints ): void { |
| 436 | foreach ( $lints as $l ) { |
| 437 | error_log( PHPUtils::jsonEncode( $l ) ); |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | /** |
| 442 | * Helper to turn a LinkTarget object into the "prefixed text" title form |
| 443 | * expected by the MediaWiki action API. |
| 444 | * @param LinkTarget $linkTarget |
| 445 | * @return string The title, as prefixed text |
| 446 | */ |
| 447 | private function toPrefixedText( LinkTarget $linkTarget ): string { |
| 448 | return Title::newFromLinkTarget( |
| 449 | $linkTarget, $this->siteConfig |
| 450 | )->getPrefixedText(); |
| 451 | } |
| 452 | |
| 453 | /** @inheritDoc */ |
| 454 | public function addTrackingCategory( |
| 455 | PageConfig $pageConfig, |
| 456 | ContentMetadataCollector $metadata, |
| 457 | string $key |
| 458 | ): void { |
| 459 | $pageConfigTitle = $this->toPrefixedText( $pageConfig->getLinkTarget() ); |
| 460 | $cacheKey = implode( ':', [ 'allmessages', md5( $pageConfigTitle ), md5( $key ) ] ); |
| 461 | $data = $this->getCache( $cacheKey ); |
| 462 | if ( $data === null ) { |
| 463 | $params = [ |
| 464 | 'action' => 'query', |
| 465 | 'meta' => 'allmessages', |
| 466 | 'amtitle' => $pageConfigTitle, |
| 467 | 'ammessages' => $key, |
| 468 | 'amenableparser' => 1, |
| 469 | ]; |
| 470 | $data = $this->api->makeRequest( $params )['query']['allmessages'][0]; |
| 471 | $this->setCache( $cacheKey, $data ); |
| 472 | } |
| 473 | if ( isset( $data['missing'] ) ) { |
| 474 | return; |
| 475 | } |
| 476 | $tv = TitleValue::tryNew( |
| 477 | 14, // NS_CATEGORY, |
| 478 | $data['content'] |
| 479 | ); |
| 480 | $metadata->addCategory( $tv ); |
| 481 | } |
| 482 | } |