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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\UploadWizard; |
| 4 | |
| 5 | use InvalidArgumentException; |
| 6 | use Language; |
| 7 | use MediaWiki\Category\Category; |
| 8 | use MediaWiki\MediaWikiServices; |
| 9 | use MediaWiki\Parser\ParserOutput; |
| 10 | use MediaWiki\Title\Title; |
| 11 | use Parser; |
| 12 | use ParserOptions; |
| 13 | use RequestContext; |
| 14 | use WANObjectCache; |
| 15 | use Wikimedia\Rdbms\Database; |
| 16 | use Wikimedia\Rdbms\SelectQueryBuilder; |
| 17 | |
| 18 | /** |
| 19 | * Class that represents a single upload campaign. |
| 20 | * An upload campaign is stored as a row in the uw_campaigns table, |
| 21 | * and its configuration is stored in the Campaign: namespace |
| 22 | * |
| 23 | * This class is 'readonly' - to modify the campaigns, please |
| 24 | * edit the appropriate Campaign: namespace page |
| 25 | * |
| 26 | * @file |
| 27 | * @ingroup Upload |
| 28 | * |
| 29 | * @since 1.2 |
| 30 | * |
| 31 | * @license GPL-2.0-or-later |
| 32 | * @author Yuvi Panda <yuvipanda@gmail.com> |
| 33 | * @author Jeroen De Dauw < jeroendedauw@gmail.com > |
| 34 | */ |
| 35 | class Campaign { |
| 36 | |
| 37 | /** |
| 38 | * The campaign configuration. |
| 39 | * |
| 40 | * @since 1.2 |
| 41 | * @var array |
| 42 | */ |
| 43 | protected $config = []; |
| 44 | |
| 45 | /** |
| 46 | * The campaign configuration, after wikitext properties have been parsed. |
| 47 | * |
| 48 | * @since 1.2 |
| 49 | * @var array|null |
| 50 | */ |
| 51 | protected $parsedConfig = null; |
| 52 | |
| 53 | /** |
| 54 | * Array of templates used in this campaign. |
| 55 | * Each item is an array with ( namespace, template_title ) |
| 56 | * Stored without deduplication |
| 57 | * |
| 58 | * @since 1.2 |
| 59 | * @var array |
| 60 | */ |
| 61 | protected $templates = []; |
| 62 | |
| 63 | /** |
| 64 | * The Title representing the current campaign |
| 65 | * |
| 66 | * @since 1.4 |
| 67 | * @var Title|null |
| 68 | */ |
| 69 | protected $title = null; |
| 70 | |
| 71 | /** |
| 72 | * The RequestContext to use for operations performed from this object |
| 73 | * |
| 74 | * @since 1.4 |
| 75 | * @var RequestContext|null |
| 76 | */ |
| 77 | protected $context = null; |
| 78 | |
| 79 | /** @var WANObjectCache */ |
| 80 | private $wanObjectCache; |
| 81 | |
| 82 | /** @var \Wikimedia\Rdbms\IReadableDatabase */ |
| 83 | private $dbr; |
| 84 | |
| 85 | /** @var Parser */ |
| 86 | private $parser; |
| 87 | |
| 88 | /** @var \MediaWiki\Interwiki\InterwikiLookup */ |
| 89 | private $interwikiLookup; |
| 90 | |
| 91 | public static function newFromName( $name ) { |
| 92 | $campaignTitle = Title::makeTitleSafe( NS_CAMPAIGN, $name ); |
| 93 | if ( $campaignTitle === null || !$campaignTitle->exists() ) { |
| 94 | return false; |
| 95 | } |
| 96 | |
| 97 | return new Campaign( $campaignTitle ); |
| 98 | } |
| 99 | |
| 100 | public function __construct( $title, $config = null, $context = null ) { |
| 101 | $services = MediaWikiServices::getInstance(); |
| 102 | $this->wanObjectCache = $services->getMainWANObjectCache(); |
| 103 | $this->dbr = $services->getDBLoadBalancerFactory()->getReplicaDatabase(); |
| 104 | $this->parser = $services->getParser(); |
| 105 | $this->interwikiLookup = $services->getInterwikiLookup(); |
| 106 | $wikiPageFactory = $services->getWikiPageFactory(); |
| 107 | |
| 108 | $this->title = $title; |
| 109 | if ( $config === null ) { |
| 110 | $content = $wikiPageFactory->newFromTitle( $title )->getContent(); |
| 111 | if ( !$content instanceof CampaignContent ) { |
| 112 | throw new InvalidArgumentException( 'Wrong content model' ); |
| 113 | } |
| 114 | $this->config = $content->getJsonData(); |
| 115 | } else { |
| 116 | $this->config = $config; |
| 117 | } |
| 118 | if ( $context === null ) { |
| 119 | $this->context = RequestContext::getMain(); |
| 120 | } else { |
| 121 | $this->context = $context; |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * Returns true if current campaign is enabled |
| 127 | * |
| 128 | * @since 1.4 |
| 129 | * |
| 130 | * @return bool |
| 131 | */ |
| 132 | public function getIsEnabled() { |
| 133 | return $this->config !== null && $this->config['enabled']; |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Returns name of current campaign |
| 138 | * |
| 139 | * @since 1.4 |
| 140 | * |
| 141 | * @return string |
| 142 | */ |
| 143 | public function getName() { |
| 144 | return $this->title->getDBkey(); |
| 145 | } |
| 146 | |
| 147 | public function getTitle() { |
| 148 | return $this->title; |
| 149 | } |
| 150 | |
| 151 | public function getTrackingCategory() { |
| 152 | $trackingCats = Config::getSetting( 'trackingCategory' ); |
| 153 | return Title::makeTitleSafe( |
| 154 | NS_CATEGORY, str_replace( '$1', $this->getName(), $trackingCats['campaign'] ) |
| 155 | ); |
| 156 | } |
| 157 | |
| 158 | public function getUploadedMediaCount() { |
| 159 | return Category::newFromTitle( $this->getTrackingCategory() )->getFileCount(); |
| 160 | } |
| 161 | |
| 162 | public function getTotalContributorsCount() { |
| 163 | $dbr = $this->dbr; |
| 164 | $fname = __METHOD__; |
| 165 | |
| 166 | return $this->wanObjectCache->getWithSetCallback( |
| 167 | $this->wanObjectCache->makeKey( 'uploadwizard-campaign-contributors-count', $this->getName() ), |
| 168 | Config::getSetting( 'campaignStatsMaxAge' ), |
| 169 | function ( $oldValue, &$ttl, array &$setOpts ) use ( $fname, $dbr ) { |
| 170 | $setOpts += Database::getCacheSetOptions( $dbr ); |
| 171 | |
| 172 | return $dbr->newSelectQueryBuilder() |
| 173 | ->select( [ 'count' => 'COUNT(DISTINCT img_actor)' ] ) |
| 174 | ->from( 'categorylinks' ) |
| 175 | ->join( 'page', null, 'cl_from=page_id' ) |
| 176 | ->join( 'image', null, 'page_title=img_name' ) |
| 177 | ->where( [ 'cl_to' => $this->getTrackingCategory()->getDBkey(), 'cl_type' => 'file' ] ) |
| 178 | ->caller( $fname ) |
| 179 | ->useIndex( [ 'categorylinks' => 'cl_timestamp' ] ) |
| 180 | ->fetchField(); |
| 181 | } |
| 182 | ); |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * @param int $limit |
| 187 | * |
| 188 | * @return Title[] |
| 189 | */ |
| 190 | public function getUploadedMedia( $limit = 24 ) { |
| 191 | $result = $this->dbr->newSelectQueryBuilder() |
| 192 | ->select( [ 'cl_from', 'page_namespace', 'page_title' ] ) |
| 193 | ->from( 'categorylinks' ) |
| 194 | ->join( 'page', null, 'cl_from=page_id' ) |
| 195 | ->where( [ 'cl_to' => $this->getTrackingCategory()->getDBkey(), 'cl_type' => 'file' ] ) |
| 196 | ->orderBy( 'cl_timestamp', SelectQueryBuilder::SORT_DESC ) |
| 197 | ->limit( $limit ) |
| 198 | ->useIndex( [ 'categorylinks' => 'cl_timestamp' ] ) |
| 199 | ->caller( __METHOD__ ) |
| 200 | ->fetchResultSet(); |
| 201 | |
| 202 | $images = []; |
| 203 | foreach ( $result as $row ) { |
| 204 | $images[] = Title::makeTitle( $row->page_namespace, $row->page_title ); |
| 205 | } |
| 206 | |
| 207 | return $images; |
| 208 | } |
| 209 | |
| 210 | /** |
| 211 | * Returns all set config properties. |
| 212 | * Property name => property value |
| 213 | * |
| 214 | * @since 1.2 |
| 215 | * |
| 216 | * @return array |
| 217 | */ |
| 218 | public function getRawConfig() { |
| 219 | return $this->config; |
| 220 | } |
| 221 | |
| 222 | /** |
| 223 | * Update internal list of templates used in parsing this campaign |
| 224 | * |
| 225 | * @param ParserOutput $parserOutput |
| 226 | */ |
| 227 | private function updateTemplates( ParserOutput $parserOutput ) { |
| 228 | $templateIds = $parserOutput->getTemplateIds(); |
| 229 | foreach ( $parserOutput->getTemplates() as $ns => $templates ) { |
| 230 | foreach ( $templates as $dbk => $id ) { |
| 231 | $this->templates[$ns][$dbk] = [ $id, $templateIds[$ns][$dbk] ]; |
| 232 | } |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | /** |
| 237 | * Wrapper around OutputPage::parseInline |
| 238 | * |
| 239 | * @param string $value Wikitext to parse |
| 240 | * @param Language $lang |
| 241 | * |
| 242 | * @since 1.3 |
| 243 | * |
| 244 | * @return string HTML |
| 245 | */ |
| 246 | private function parseValue( $value, Language $lang ) { |
| 247 | $parserOptions = ParserOptions::newFromContext( $this->context ); |
| 248 | $parserOptions->setInterfaceMessage( true ); |
| 249 | $parserOptions->setUserLang( $lang ); |
| 250 | $parserOptions->setTargetLanguage( $lang ); |
| 251 | |
| 252 | $output = $this->parser->parse( |
| 253 | $value, $this->getTitle(), $parserOptions |
| 254 | ); |
| 255 | $parsed = $output->getText( [ |
| 256 | 'enableSectionEditLinks' => false, |
| 257 | ] ); |
| 258 | |
| 259 | $this->updateTemplates( $output ); |
| 260 | |
| 261 | return Parser::stripOuterParagraph( $parsed ); |
| 262 | } |
| 263 | |
| 264 | /** |
| 265 | * Parses the values in an assoc array as wikitext |
| 266 | * |
| 267 | * @param array $array |
| 268 | * @param Language $lang |
| 269 | * @param array|null $forKeys Array of keys whose values should be parsed |
| 270 | * |
| 271 | * @since 1.3 |
| 272 | * |
| 273 | * @return array |
| 274 | */ |
| 275 | private function parseArrayValues( $array, Language $lang, $forKeys = null ) { |
| 276 | $parsed = []; |
| 277 | foreach ( $array as $key => $value ) { |
| 278 | if ( $forKeys !== null ) { |
| 279 | if ( in_array( $key, $forKeys ) ) { |
| 280 | if ( is_array( $value ) ) { |
| 281 | $parsed[$key] = $this->parseArrayValues( $value, $lang ); |
| 282 | } else { |
| 283 | $parsed[$key] = $this->parseValue( $value, $lang ); |
| 284 | } |
| 285 | } else { |
| 286 | $parsed[$key] = $value; |
| 287 | } |
| 288 | } elseif ( is_array( $value ) ) { |
| 289 | $parsed[$key] = $this->parseArrayValues( $value, $lang ); |
| 290 | } else { |
| 291 | $parsed[$key] = $this->parseValue( $value, $lang ); |
| 292 | } |
| 293 | } |
| 294 | return $parsed; |
| 295 | } |
| 296 | |
| 297 | /** |
| 298 | * Returns all config parameters, after parsing the wikitext based ones |
| 299 | * |
| 300 | * @since 1.3 |
| 301 | * |
| 302 | * @param Language|null $lang |
| 303 | * @return array |
| 304 | */ |
| 305 | public function getParsedConfig( Language $lang = null ) { |
| 306 | if ( $lang === null ) { |
| 307 | $lang = $this->context->getLanguage(); |
| 308 | } |
| 309 | |
| 310 | // We check if the parsed config for this campaign is cached. If it is available in cache, |
| 311 | // we then check to make sure that it is the latest version - by verifying that its |
| 312 | // timestamp is greater than or equal to the timestamp of the last time an invalidate was |
| 313 | // issued. |
| 314 | $memKey = $this->wanObjectCache->makeKey( |
| 315 | 'uploadwizard-campaign', |
| 316 | $this->getName(), |
| 317 | 'parsed-config', |
| 318 | $lang->getCode() |
| 319 | ); |
| 320 | $depKeys = [ $this->makeInvalidateTimestampKey( $this->wanObjectCache ) ]; |
| 321 | |
| 322 | $curTTL = null; |
| 323 | $memValue = $this->wanObjectCache->get( $memKey, $curTTL, $depKeys ); |
| 324 | if ( is_array( $memValue ) && $curTTL > 0 ) { |
| 325 | $this->parsedConfig = $memValue['config']; |
| 326 | } |
| 327 | |
| 328 | if ( $this->parsedConfig === null ) { |
| 329 | $parsedConfig = []; |
| 330 | foreach ( $this->config as $key => $value ) { |
| 331 | switch ( $key ) { |
| 332 | case "title": |
| 333 | case "description": |
| 334 | $parsedConfig[$key] = $this->parseValue( $value, $lang ); |
| 335 | break; |
| 336 | case "display": |
| 337 | foreach ( $value as $option => $optionValue ) { |
| 338 | if ( is_array( $optionValue ) ) { |
| 339 | $parsedConfig['display'][$option] = $this->parseArrayValues( |
| 340 | $optionValue, |
| 341 | $lang, |
| 342 | [ 'label' ] |
| 343 | ); |
| 344 | } else { |
| 345 | $parsedConfig['display'][$option] = $this->parseValue( $optionValue, $lang ); |
| 346 | } |
| 347 | } |
| 348 | break; |
| 349 | case "fields": |
| 350 | $parsedConfig['fields'] = []; |
| 351 | foreach ( $value as $field ) { |
| 352 | $parsedConfig['fields'][] = $this->parseArrayValues( |
| 353 | $field, |
| 354 | $lang, |
| 355 | [ 'label', 'options' ] |
| 356 | ); |
| 357 | } |
| 358 | break; |
| 359 | case "whileActive": |
| 360 | case "afterActive": |
| 361 | case "beforeActive": |
| 362 | if ( array_key_exists( 'display', $value ) ) { |
| 363 | $value['display'] = $this->parseArrayValues( $value['display'], $lang ); |
| 364 | } |
| 365 | $parsedConfig[$key] = $value; |
| 366 | break; |
| 367 | default: |
| 368 | $parsedConfig[$key] = $value; |
| 369 | break; |
| 370 | } |
| 371 | } |
| 372 | |
| 373 | $this->parsedConfig = $parsedConfig; |
| 374 | |
| 375 | $this->wanObjectCache->set( $memKey, [ 'timestamp' => time(), 'config' => $parsedConfig ] ); |
| 376 | } |
| 377 | |
| 378 | $uwDefaults = Config::getSetting( 'defaults' ); |
| 379 | if ( array_key_exists( 'objref', $uwDefaults ) ) { |
| 380 | $this->applyObjectReferenceToButtons( $uwDefaults['objref'] ); |
| 381 | } |
| 382 | $this->modifyIfNecessary(); |
| 383 | |
| 384 | return $this->parsedConfig; |
| 385 | } |
| 386 | |
| 387 | /** |
| 388 | * Modifies the parsed config if there are time-based modifiers that are active. |
| 389 | */ |
| 390 | protected function modifyIfNecessary() { |
| 391 | foreach ( $this->parsedConfig as $cnf => $modifiers ) { |
| 392 | if ( $cnf === 'whileActive' && $this->isActive() ) { |
| 393 | $activeModifiers = $modifiers; |
| 394 | } elseif ( $cnf === 'afterActive' && $this->wasActive() ) { |
| 395 | $activeModifiers = $modifiers; |
| 396 | } elseif ( $cnf === 'beforeActive' ) { |
| 397 | $activeModifiers = $modifiers; |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | if ( isset( $activeModifiers ) ) { |
| 402 | foreach ( $activeModifiers as $cnf => $modifier ) { |
| 403 | switch ( $cnf ) { |
| 404 | case "autoAdd": |
| 405 | case "display": |
| 406 | if ( !array_key_exists( $cnf, $this->parsedConfig ) ) { |
| 407 | $this->parsedConfig[$cnf] = []; |
| 408 | } |
| 409 | |
| 410 | $this->parsedConfig[$cnf] = array_merge( $this->parsedConfig[$cnf], $modifier ); |
| 411 | break; |
| 412 | } |
| 413 | } |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | /** |
| 418 | * Returns the templates used in this Campaign's config |
| 419 | * |
| 420 | * @return array [ns => [ dbk => [page_id, rev_id ] ] ] |
| 421 | */ |
| 422 | public function getTemplates() { |
| 423 | if ( $this->parsedConfig === null ) { |
| 424 | $this->getParsedConfig(); |
| 425 | } |
| 426 | return $this->templates; |
| 427 | } |
| 428 | |
| 429 | /** |
| 430 | * Invalidate the cache for this campaign, in all languages |
| 431 | * |
| 432 | * Does so by simply writing a new invalidate timestamp to memcached. |
| 433 | * Since this invalidate timestamp is checked on every read, the cached entries |
| 434 | * for the campaign will be regenerated the next time there is a read. |
| 435 | */ |
| 436 | public function invalidateCache() { |
| 437 | $this->wanObjectCache->touchCheckKey( $this->makeInvalidateTimestampKey( $this->wanObjectCache ) ); |
| 438 | } |
| 439 | |
| 440 | /** |
| 441 | * Returns key used to store the last time the cache for a particular campaign was invalidated |
| 442 | * |
| 443 | * @param WANObjectCache $cache |
| 444 | * @return string |
| 445 | */ |
| 446 | private function makeInvalidateTimestampKey( WANObjectCache $cache ) { |
| 447 | return $cache->makeKey( |
| 448 | 'uploadwizard-campaign', |
| 449 | $this->getName(), |
| 450 | 'parsed-config', |
| 451 | 'invalidate-timestamp' |
| 452 | ); |
| 453 | } |
| 454 | |
| 455 | /** |
| 456 | * Checks the current date against the configured start and end dates to determine |
| 457 | * whether the campaign is currently active. |
| 458 | * |
| 459 | * @return bool |
| 460 | */ |
| 461 | private function isActive() { |
| 462 | $today = strtotime( date( "Y-m-d" ) ); |
| 463 | $start = array_key_exists( |
| 464 | 'start', $this->parsedConfig |
| 465 | ) ? strtotime( $this->parsedConfig['start'] ) : null; |
| 466 | $end = array_key_exists( |
| 467 | 'end', $this->parsedConfig |
| 468 | ) ? strtotime( $this->parsedConfig['end'] ) : null; |
| 469 | |
| 470 | return ( $start === null || $start <= $today ) && ( $end === null || $end > $today ); |
| 471 | } |
| 472 | |
| 473 | /** |
| 474 | * Checks the current date against the configured start and end dates to determine |
| 475 | * whether the campaign was active in the past (and is not anymore) |
| 476 | * |
| 477 | * @return bool |
| 478 | */ |
| 479 | private function wasActive() { |
| 480 | $today = strtotime( date( "Y-m-d" ) ); |
| 481 | $start = array_key_exists( |
| 482 | 'start', $this->parsedConfig |
| 483 | ) ? strtotime( $this->parsedConfig['start'] ) : null; |
| 484 | |
| 485 | return ( $start === null || $start <= $today ) && !$this->isActive(); |
| 486 | } |
| 487 | |
| 488 | /** |
| 489 | * Generate the URL out of the object reference |
| 490 | * |
| 491 | * @param string $objRef |
| 492 | * @return bool|string |
| 493 | */ |
| 494 | private function getButtonHrefByObjectReference( $objRef ) { |
| 495 | $arrObjRef = explode( '|', $objRef ); |
| 496 | if ( count( $arrObjRef ) > 1 ) { |
| 497 | [ $wiki, $title ] = $arrObjRef; |
| 498 | if ( $this->interwikiLookup->isValidInterwiki( $wiki ) ) { |
| 499 | return str_replace( '$1', $title, $this->interwikiLookup->fetch( $wiki )->getURL() ); |
| 500 | } |
| 501 | } |
| 502 | return false; |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * Apply given object reference to buttons configured to use it as href |
| 507 | * |
| 508 | * @param string $objRef |
| 509 | */ |
| 510 | private function applyObjectReferenceToButtons( $objRef ) { |
| 511 | $customizableButtons = [ 'homeButton', 'beginButton' ]; |
| 512 | |
| 513 | foreach ( $customizableButtons as $button ) { |
| 514 | if ( isset( $this->parsedConfig['display'][$button]['target'] ) && |
| 515 | $this->parsedConfig['display'][$button]['target'] === 'useObjref' |
| 516 | ) { |
| 517 | $validUrl = $this->getButtonHrefByObjectReference( $objRef ); |
| 518 | if ( $validUrl ) { |
| 519 | $this->parsedConfig['display'][$button]['target'] = $validUrl; |
| 520 | } else { |
| 521 | unset( $this->parsedConfig['display'][$button] ); |
| 522 | } |
| 523 | } |
| 524 | } |
| 525 | } |
| 526 | } |