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| 1 | <?php |
| 2 | |
| 3 | namespace Flow\Block; |
| 4 | |
| 5 | use Flow\Container; |
| 6 | use Flow\Data\Pager\Pager; |
| 7 | use Flow\Data\Pager\PagerPage; |
| 8 | use Flow\Exception\FailCommitException; |
| 9 | use Flow\Exception\FlowException; |
| 10 | use Flow\Formatter\TocTopicListFormatter; |
| 11 | use Flow\Formatter\TopicListFormatter; |
| 12 | use Flow\Formatter\TopicListQuery; |
| 13 | use Flow\Model\PostRevision; |
| 14 | use Flow\Model\TopicListEntry; |
| 15 | use Flow\Model\UUID; |
| 16 | use Flow\Model\Workflow; |
| 17 | use MediaWiki\MediaWikiServices; |
| 18 | use MediaWiki\Output\OutputPage; |
| 19 | use MediaWiki\Revision\RevisionRecord; |
| 20 | use MediaWiki\Title\Title; |
| 21 | use UserOptionsUpdateJob; |
| 22 | |
| 23 | class TopicListBlock extends AbstractBlock { |
| 24 | |
| 25 | /** |
| 26 | * @var array |
| 27 | */ |
| 28 | protected $supportedPostActions = [ 'new-topic' ]; |
| 29 | |
| 30 | /** |
| 31 | * @var array |
| 32 | */ |
| 33 | protected $supportedGetActions = [ 'view', 'view-topiclist' ]; |
| 34 | |
| 35 | /** |
| 36 | * @var string[] |
| 37 | * @todo Fill in the template names |
| 38 | */ |
| 39 | protected $templates = [ |
| 40 | 'view' => '', |
| 41 | 'new-topic' => 'newtopic', |
| 42 | ]; |
| 43 | |
| 44 | /** |
| 45 | * @var Workflow|null |
| 46 | */ |
| 47 | protected $topicWorkflow; |
| 48 | |
| 49 | /** |
| 50 | * @var TopicListEntry|null |
| 51 | */ |
| 52 | protected $topicListEntry; |
| 53 | |
| 54 | /** |
| 55 | * @var PostRevision|null |
| 56 | */ |
| 57 | protected $topicTitle; |
| 58 | |
| 59 | /** |
| 60 | * @var PostRevision|null |
| 61 | */ |
| 62 | protected $firstPost; |
| 63 | |
| 64 | /** |
| 65 | * @var array |
| 66 | * |
| 67 | * Associative array mapping topic ID (in alphadecimal form) to PostRevision for the topic root. |
| 68 | */ |
| 69 | protected $topicRootRevisionCache = []; |
| 70 | |
| 71 | /** |
| 72 | * The limit of Table of Contents topics that are rendered per request |
| 73 | */ |
| 74 | private const TOCLIMIT = 50; |
| 75 | |
| 76 | protected function validate() { |
| 77 | // for now, new topic is considered a new post; perhaps some day topic creation should get it's own permissions? |
| 78 | if ( |
| 79 | !$this->permissions->isRevisionAllowed( null, 'new-post' ) || |
| 80 | !$this->permissions->isBoardAllowed( $this->workflow, 'new-post' ) |
| 81 | ) { |
| 82 | $this->addError( 'permissions', $this->context->msg( 'flow-error-not-allowed' ) ); |
| 83 | return; |
| 84 | } |
| 85 | if ( !isset( $this->submitted['topic'] ) || !is_string( $this->submitted['topic'] ) ) { |
| 86 | unset( $this->submitted['topic'] ); |
| 87 | $this->addError( 'topic', $this->context->msg( 'flow-error-missing-title' ) ); |
| 88 | return; |
| 89 | } |
| 90 | $this->submitted['topic'] = trim( $this->submitted['topic'] ); |
| 91 | if ( strlen( $this->submitted['topic'] ) === 0 ) { |
| 92 | $this->addError( 'topic', $this->context->msg( 'flow-error-missing-title' ) ); |
| 93 | return; |
| 94 | } |
| 95 | if ( mb_strlen( $this->submitted['topic'] ) > PostRevision::MAX_TOPIC_LENGTH ) { |
| 96 | $this->addError( 'topic', $this->context->msg( 'flow-error-title-too-long', PostRevision::MAX_TOPIC_LENGTH ) ); |
| 97 | return; |
| 98 | } |
| 99 | |
| 100 | if ( !isset( $this->submitted['content'] ) || trim( $this->submitted['content'] ) === '' ) { |
| 101 | $this->addError( 'content', $this->context->msg( 'flow-error-missing-content' ) ); |
| 102 | return; |
| 103 | } |
| 104 | |
| 105 | // creates Workflow, Revision & TopicListEntry objects to be inserted into storage |
| 106 | [ $this->topicWorkflow, $this->topicListEntry, $this->topicTitle, $this->firstPost ] = $this->create(); |
| 107 | |
| 108 | if ( !$this->checkSpamFilters( null, $this->topicTitle ) ) { |
| 109 | return; |
| 110 | } |
| 111 | if ( $this->firstPost && !$this->checkSpamFilters( null, $this->firstPost ) ) { |
| 112 | return; |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * Creates the objects about to be inserted into storage: |
| 118 | * * $this->topicWorkflow |
| 119 | * * $this->topicListEntry |
| 120 | * * $this->topicTitle |
| 121 | * * $this->firstPost |
| 122 | * |
| 123 | * @return array Array of [$topicWorkflow, $topicListEntry, $topicTitle, $firstPost] |
| 124 | */ |
| 125 | protected function create() { |
| 126 | $title = $this->workflow->getArticleTitle(); |
| 127 | $user = $this->context->getUser(); |
| 128 | $topicWorkflow = Workflow::create( 'topic', $title ); |
| 129 | $topicListEntry = TopicListEntry::create( $this->workflow, $topicWorkflow ); |
| 130 | $topicTitle = PostRevision::createTopicPost( |
| 131 | $topicWorkflow, |
| 132 | $user, |
| 133 | // @phan-suppress-next-line PhanTypeArraySuspiciousNullable |
| 134 | $this->submitted['topic'] |
| 135 | ); |
| 136 | |
| 137 | $firstPost = null; |
| 138 | if ( !empty( $this->submitted['content'] ) ) { |
| 139 | $firstPost = $topicTitle->reply( |
| 140 | $topicWorkflow, |
| 141 | $user, |
| 142 | // @phan-suppress-next-line PhanTypeArraySuspiciousNullable |
| 143 | $this->submitted['content'], |
| 144 | // default to wikitext when not specified, for old API requests |
| 145 | $this->submitted['format'] ?? 'wikitext' |
| 146 | ); |
| 147 | $topicTitle->setChildren( [ $firstPost ] ); |
| 148 | } |
| 149 | |
| 150 | return [ $topicWorkflow, $topicListEntry, $topicTitle, $firstPost ]; |
| 151 | } |
| 152 | |
| 153 | public function commit() { |
| 154 | if ( $this->action !== 'new-topic' ) { |
| 155 | throw new FailCommitException( 'Unknown commit action', 'fail-commit' ); |
| 156 | } |
| 157 | |
| 158 | $metadata = [ |
| 159 | 'workflow' => $this->topicWorkflow, |
| 160 | 'board-workflow' => $this->workflow, |
| 161 | 'topic-title' => $this->topicTitle, |
| 162 | 'first-post' => $this->firstPost, |
| 163 | ]; |
| 164 | |
| 165 | /* |
| 166 | * Order of storage is important! We've been changing when we stored |
| 167 | * workflow a couple of times. For now, it needs to be stored first: |
| 168 | * * TopicPageCreationListener.php (post listener) must first create the |
| 169 | * Topic:Xyz page before NotificationListener.php (topic/post |
| 170 | * listeners) creates notifications (& mails) that link to it |
| 171 | * * ReferenceExtractor.php (run from ReferenceRecorder.php, a post |
| 172 | * listener) needs to parse content with Parsoid & for that it needs |
| 173 | * the board title. AbstractRevision::getContent() will figure out |
| 174 | * the title from the workflow: $this->getCollection()->getTitle() |
| 175 | * If you even feel the need to change the order, make sure you come |
| 176 | * up with a fix for the above things ;) |
| 177 | */ |
| 178 | $this->storage->put( $this->workflow, [] ); // 'discussion' workflow |
| 179 | $this->storage->put( $this->topicWorkflow, $metadata ); // 'topic' workflow |
| 180 | $this->storage->put( $this->topicListEntry, $metadata ); |
| 181 | $this->storage->put( $this->topicTitle, $metadata ); |
| 182 | if ( $this->firstPost !== null ) { |
| 183 | $this->storage->put( $this->firstPost, $metadata + [ |
| 184 | 'reply-to' => $this->topicTitle |
| 185 | ] ); |
| 186 | } |
| 187 | |
| 188 | $output = [ |
| 189 | 'topic-page' => $this->topicWorkflow->getArticleTitle()->getPrefixedText(), |
| 190 | 'topic-id' => $this->topicTitle->getPostId(), |
| 191 | 'topic-revision-id' => $this->topicTitle->getRevisionId(), |
| 192 | 'post-id' => $this->firstPost ? $this->firstPost->getPostId() : null, |
| 193 | 'post-revision-id' => $this->firstPost ? $this->firstPost->getRevisionId() : null, |
| 194 | ]; |
| 195 | |
| 196 | return $output; |
| 197 | } |
| 198 | |
| 199 | public function renderTocApi( array $topicList, array $options ) { |
| 200 | global $wgFlowDefaultLimit; |
| 201 | |
| 202 | $tocApiParams = array_merge( |
| 203 | $options, |
| 204 | [ |
| 205 | 'toconly' => true, |
| 206 | 'limit' => self::TOCLIMIT |
| 207 | ] |
| 208 | ); |
| 209 | |
| 210 | $findOptions = $this->getFindOptions( $options ); |
| 211 | |
| 212 | // include the current sortby option. Note that when 'user' is either |
| 213 | // submitted or defaulted to this is the resulting sort. ex: newest |
| 214 | $tocApiParams['sortby'] = $findOptions['sortby']; |
| 215 | |
| 216 | // In the case of 'newest' sort, we could save ourselves trouble and only |
| 217 | // produce the necessary 40 topics that are missing from the ToC, by taking |
| 218 | // the latest UUID from the topic list. |
| 219 | // This is a bit harder for the case of 'updated' which requires a timestamp, |
| 220 | // so in that case, we can stick to having repeated topics and letting the |
| 221 | // data model sort through which ones it needs to update and which ones it |
| 222 | // may ignore. |
| 223 | if ( $tocApiParams['sortby'] === 'newest' ) { |
| 224 | // Make sure we found topiclist block |
| 225 | // and that it actually has roots in it |
| 226 | $existingRoots = isset( $topicList['roots'] ) && is_array( $topicList['roots'] ) ? |
| 227 | $topicList['roots'] : []; |
| 228 | |
| 229 | if ( count( $existingRoots ) > 0 ) { |
| 230 | // Add new offset-id and limit to the api parameters and change the limit |
| 231 | $tocApiParams['offset-id'] = end( $existingRoots ); |
| 232 | $tocApiParams['limit'] = self::TOCLIMIT - $wgFlowDefaultLimit; |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | return $this->renderApi( $tocApiParams ); |
| 237 | } |
| 238 | |
| 239 | public function renderApi( array $options ) { |
| 240 | $options = $this->preloadTexts( $options ); |
| 241 | |
| 242 | $response = [ |
| 243 | 'submitted' => $this->wasSubmitted() ? $this->submitted : $options, |
| 244 | 'errors' => $this->errors, |
| 245 | ]; |
| 246 | |
| 247 | // Repeating the default until we use the API for everything (bug 72659) |
| 248 | // Also, if this is removed other APIs (i.e. ApiFlowNewTopic) may need |
| 249 | // to be adjusted if they trigger a rendering of this block. |
| 250 | $isTocOnly = $options['toconly'] ?? false; |
| 251 | |
| 252 | if ( $isTocOnly ) { |
| 253 | /** @var TocTopicListFormatter $serializer */ |
| 254 | $serializer = Container::get( 'formatter.topiclist.toc' ); |
| 255 | } else { |
| 256 | /** @var TopicListFormatter $serializer */ |
| 257 | $serializer = Container::get( 'formatter.topiclist' ); |
| 258 | $format = $options['format'] ?? 'fixed-html'; |
| 259 | $serializer->setContentFormat( $format ); |
| 260 | } |
| 261 | |
| 262 | // @todo remove the 'api' => true, its always api |
| 263 | $findOptions = $this->getFindOptions( $options + [ 'api' => true ] ); |
| 264 | |
| 265 | // include the current sortby option. Note that when 'user' is either |
| 266 | // submitted or defaulted to this is the resulting sort. ex: newest |
| 267 | $response['sortby'] = $findOptions['sortby']; |
| 268 | |
| 269 | if ( $this->workflow->isNew() ) { |
| 270 | return $response + $serializer->buildEmptyResult( $this->workflow ); |
| 271 | } |
| 272 | |
| 273 | $page = $this->getPage( $findOptions ); |
| 274 | $workflowIds = []; |
| 275 | /** @var TopicListEntry $topicListEntry */ |
| 276 | foreach ( $page->getResults() as $topicListEntry ) { |
| 277 | $workflowIds[] = $topicListEntry->getId(); |
| 278 | } |
| 279 | |
| 280 | $workflows = $this->storage->getMulti( 'Workflow', $workflowIds ); |
| 281 | |
| 282 | if ( $isTocOnly ) { |
| 283 | // We don't need any further data, so we skip the TopicListQuery. |
| 284 | |
| 285 | $topicRootRevisionsByWorkflowId = []; |
| 286 | $workflowsByWorkflowId = []; |
| 287 | |
| 288 | foreach ( $workflows as $workflow ) { |
| 289 | $alphaWorkflowId = $workflow->getId()->getAlphadecimal(); |
| 290 | $topicRootRevisionsByWorkflowId[$alphaWorkflowId] = $this->topicRootRevisionCache[$alphaWorkflowId]; |
| 291 | $workflowsByWorkflowId[$alphaWorkflowId] = $workflow; |
| 292 | } |
| 293 | |
| 294 | return $response + $serializer->formatApi( $this->workflow, $topicRootRevisionsByWorkflowId, $workflowsByWorkflowId, $page ); |
| 295 | } |
| 296 | |
| 297 | /** @var TopicListQuery $query */ |
| 298 | $query = Container::get( 'query.topiclist' ); |
| 299 | $found = $query->getResults( $page->getResults() ); |
| 300 | wfDebugLog( 'FlowDebug', 'Rendering topiclist for ids: ' . implode( ', ', array_map( static function ( UUID $id ) { |
| 301 | return $id->getAlphadecimal(); |
| 302 | }, $workflowIds ) ) ); |
| 303 | |
| 304 | return $response + $serializer->formatApi( $this->workflow, $workflows, $found, $page, $this->context ); |
| 305 | } |
| 306 | |
| 307 | /** |
| 308 | * Transforms preload params into proper options we can assign to template. |
| 309 | * |
| 310 | * @param array $options |
| 311 | * @return array |
| 312 | */ |
| 313 | protected function preloadTexts( $options ) { |
| 314 | if ( isset( $options['preload'] ) && !empty( $options['preload'] ) ) { |
| 315 | $title = Title::newFromText( $options['preload'] ); |
| 316 | $wikiPageFactory = MediaWikiServices::getInstance()->getWikiPageFactory(); |
| 317 | $page = $wikiPageFactory->newFromTitle( $title ); |
| 318 | if ( $page->isRedirect() ) { |
| 319 | $title = $page->getRedirectTarget(); |
| 320 | $page = $wikiPageFactory->newFromTitle( $title ); |
| 321 | } |
| 322 | |
| 323 | if ( $page->exists() ) { |
| 324 | $content = $page->getContent( RevisionRecord::RAW ); |
| 325 | $options['content'] = $content->serialize(); |
| 326 | $options['format'] = 'wikitext'; |
| 327 | } |
| 328 | } |
| 329 | |
| 330 | if ( isset( $options['preloadtitle'] ) ) { |
| 331 | $options['topic'] = $options['preloadtitle']; |
| 332 | } |
| 333 | |
| 334 | return $options; |
| 335 | } |
| 336 | |
| 337 | public function getName() { |
| 338 | return 'topiclist'; |
| 339 | } |
| 340 | |
| 341 | protected function getLimit( array $options ) { |
| 342 | global $wgFlowDefaultLimit, $wgFlowMaxLimit; |
| 343 | $limit = $wgFlowDefaultLimit; |
| 344 | if ( isset( $options['limit'] ) ) { |
| 345 | $requestedLimit = intval( $options['limit'] ); |
| 346 | $limit = min( $requestedLimit, $wgFlowMaxLimit ); |
| 347 | $limit = max( 0, $limit ); |
| 348 | } |
| 349 | |
| 350 | return $limit; |
| 351 | } |
| 352 | |
| 353 | protected function getFindOptions( array $requestOptions ) { |
| 354 | $findOptions = []; |
| 355 | $services = MediaWikiServices::getInstance(); |
| 356 | $userOptionsLookup = $services->getUserOptionsLookup(); |
| 357 | |
| 358 | // Compute offset/limit |
| 359 | $limit = $this->getLimit( $requestOptions ); |
| 360 | |
| 361 | // @todo Once we migrate View.php to use the API directly |
| 362 | // all defaults will be handled by API and not here. |
| 363 | $requestOptions += [ |
| 364 | 'include-offset' => false, |
| 365 | 'offset-id' => false, |
| 366 | 'offset-dir' => 'fwd', |
| 367 | 'offset' => false, |
| 368 | 'api' => true, |
| 369 | 'sortby' => 'user', |
| 370 | 'savesortby' => false, |
| 371 | ]; |
| 372 | |
| 373 | $user = $this->context->getUser(); |
| 374 | if ( strlen( $requestOptions['sortby'] ) === 0 ) { |
| 375 | $requestOptions['sortby'] = 'user'; |
| 376 | } |
| 377 | // the sortby option in $findOptions is not directly used for querying, |
| 378 | // but is needed by the pager to generate appropriate pagination links. |
| 379 | if ( $requestOptions['sortby'] === 'user' ) { |
| 380 | $requestOptions['sortby'] = $userOptionsLookup->getOption( $user, 'flow-topiclist-sortby' ); |
| 381 | } |
| 382 | switch ( $requestOptions['sortby'] ) { |
| 383 | case 'updated': |
| 384 | $findOptions = [ |
| 385 | // @phan-suppress-next-line PhanUselessBinaryAddRight |
| 386 | 'sortby' => 'updated', |
| 387 | 'sort' => 'workflow_last_update_timestamp', |
| 388 | 'order' => 'desc', |
| 389 | ] + $findOptions; |
| 390 | |
| 391 | if ( $requestOptions['offset-id'] ) { |
| 392 | throw new FlowException( 'The `updated` sort order does not allow the `offset-id` parameter. Please use `offset`.' ); |
| 393 | } |
| 394 | break; |
| 395 | |
| 396 | case 'newest': |
| 397 | default: |
| 398 | $findOptions = [ |
| 399 | // @phan-suppress-next-line PhanUselessBinaryAddRight |
| 400 | 'sortby' => 'newest', |
| 401 | 'sort' => 'topic_id', |
| 402 | 'order' => 'desc', |
| 403 | ] + $findOptions; |
| 404 | |
| 405 | if ( $requestOptions['offset'] ) { |
| 406 | throw new FlowException( 'The `newest` sort order does not allow the `offset` parameter. Please use `offset-id`.' ); |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | if ( $requestOptions['offset-id'] ) { |
| 411 | $findOptions['pager-offset'] = UUID::create( $requestOptions['offset-id'] ); |
| 412 | } elseif ( $requestOptions['offset'] ) { |
| 413 | $findOptions['pager-offset'] = intval( $requestOptions['offset'] ); |
| 414 | } |
| 415 | |
| 416 | if ( $requestOptions['offset-dir'] ) { |
| 417 | $findOptions['pager-dir'] = $requestOptions['offset-dir']; |
| 418 | } |
| 419 | |
| 420 | if ( $requestOptions['include-offset'] ) { |
| 421 | $findOptions['pager-include-offset'] = $requestOptions['include-offset']; |
| 422 | } |
| 423 | |
| 424 | $findOptions['pager-limit'] = $limit; |
| 425 | |
| 426 | if ( |
| 427 | $requestOptions['savesortby'] |
| 428 | && $user->isRegistered() |
| 429 | && $userOptionsLookup->getOption( $user, 'flow-topiclist-sortby' ) != $findOptions['sortby'] |
| 430 | ) { |
| 431 | // Save the new sortby preference. |
| 432 | $job = new UserOptionsUpdateJob( [ |
| 433 | 'userId' => $user->getId(), |
| 434 | 'options' => [ 'flow-topiclist-sortby' => $findOptions['sortby'] ] |
| 435 | ] ); |
| 436 | $services->getJobQueueGroupFactory()->makeJobQueueGroup()->lazyPush( $job ); |
| 437 | } |
| 438 | |
| 439 | return $findOptions; |
| 440 | } |
| 441 | |
| 442 | /** |
| 443 | * Gets a set of workflow IDs |
| 444 | * This filters result to only include unmoderated and locked topics. |
| 445 | * |
| 446 | * Also populates topicRootRevisionCache with a mapping from topic ID to the |
| 447 | * PostRevision for the topic root. |
| 448 | * |
| 449 | * @param array $findOptions |
| 450 | * @return PagerPage |
| 451 | */ |
| 452 | protected function getPage( array $findOptions ) { |
| 453 | $pager = new Pager( |
| 454 | $this->storage->getStorage( 'TopicListEntry' ), |
| 455 | [ 'topic_list_id' => $this->workflow->getId() ], |
| 456 | $findOptions |
| 457 | ); |
| 458 | |
| 459 | $postStorage = $this->storage->getStorage( 'PostRevision' ); |
| 460 | |
| 461 | // Work around lack of $this in closures until we can use PHP 5.4+ features. |
| 462 | $topicRootRevisionCache =& $this->topicRootRevisionCache; |
| 463 | |
| 464 | return $pager->getPage( static function ( array $found ) use ( $postStorage, &$topicRootRevisionCache ) { |
| 465 | $queries = []; |
| 466 | /** @var TopicListEntry[] $found */ |
| 467 | foreach ( $found as $entry ) { |
| 468 | $queries[] = [ 'rev_type_id' => $entry->getId() ]; |
| 469 | } |
| 470 | $posts = $postStorage->findMulti( $queries, [ |
| 471 | 'sort' => 'rev_id', |
| 472 | 'order' => 'DESC', |
| 473 | 'limit' => 1, |
| 474 | ] ); |
| 475 | $allowed = []; |
| 476 | foreach ( $posts as $queryResult ) { |
| 477 | $post = reset( $queryResult ); |
| 478 | if ( !$post->isModerated() || $post->isLocked() ) { |
| 479 | $allowed[$post->getPostId()->getAlphadecimal()] = $post; |
| 480 | } |
| 481 | } |
| 482 | foreach ( $found as $idx => $entry ) { |
| 483 | if ( isset( $allowed[$entry->getId()->getAlphadecimal()] ) ) { |
| 484 | $topicRootRevisionCache[$entry->getId()->getAlphadecimal()] = $allowed[$entry->getId()->getAlphadecimal()]; |
| 485 | } else { |
| 486 | unset( $found[$idx] ); |
| 487 | } |
| 488 | } |
| 489 | |
| 490 | return $found; |
| 491 | } ); |
| 492 | } |
| 493 | |
| 494 | /** |
| 495 | * @param OutputPage $out |
| 496 | */ |
| 497 | public function setPageTitle( OutputPage $out ) { |
| 498 | if ( $this->action !== 'new-topic' ) { |
| 499 | // Only new-topic should override page title, rest should default |
| 500 | parent::setPageTitle( $out ); |
| 501 | return; |
| 502 | } |
| 503 | |
| 504 | $title = $this->workflow->getOwnerTitle(); |
| 505 | $message = $out->msg( 'flow-newtopic-first-heading', $title->getPrefixedText() ); |
| 506 | $out->setPageTitle( $message ); |
| 507 | $out->setHTMLTitle( $message ); |
| 508 | $out->setSubtitle( '< ' . MediaWikiServices::getInstance()->getLinkRenderer()->makeLink( $title ) ); |
| 509 | } |
| 510 | } |