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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Watchlist; |
| 4 | |
| 5 | use ApiUsageException; |
| 6 | use ChangeTags; |
| 7 | use LogPage; |
| 8 | use MediaWiki\CommentStore\CommentStore; |
| 9 | use MediaWiki\HookContainer\HookContainer; |
| 10 | use MediaWiki\HookContainer\HookRunner; |
| 11 | use MediaWiki\Linker\LinkTarget; |
| 12 | use MediaWiki\Permissions\Authority; |
| 13 | use MediaWiki\Revision\RevisionRecord; |
| 14 | use MediaWiki\Title\TitleValue; |
| 15 | use MediaWiki\User\Options\UserOptionsLookup; |
| 16 | use MediaWiki\User\TempUser\TempUserConfig; |
| 17 | use MediaWiki\User\User; |
| 18 | use MediaWiki\User\UserIdentity; |
| 19 | use RecentChange; |
| 20 | use Wikimedia\Assert\Assert; |
| 21 | use Wikimedia\Rdbms\IConnectionProvider; |
| 22 | use Wikimedia\Rdbms\IExpression; |
| 23 | use Wikimedia\Rdbms\IReadableDatabase; |
| 24 | use Wikimedia\Rdbms\SelectQueryBuilder; |
| 25 | |
| 26 | /** |
| 27 | * Class performing complex database queries related to WatchedItems. |
| 28 | * |
| 29 | * @since 1.28 |
| 30 | * |
| 31 | * @file |
| 32 | * @ingroup Watchlist |
| 33 | * |
| 34 | * @license GPL-2.0-or-later |
| 35 | */ |
| 36 | class WatchedItemQueryService { |
| 37 | |
| 38 | public const DIR_OLDER = 'older'; |
| 39 | public const DIR_NEWER = 'newer'; |
| 40 | |
| 41 | public const INCLUDE_FLAGS = 'flags'; |
| 42 | public const INCLUDE_USER = 'user'; |
| 43 | public const INCLUDE_USER_ID = 'userid'; |
| 44 | public const INCLUDE_COMMENT = 'comment'; |
| 45 | public const INCLUDE_PATROL_INFO = 'patrol'; |
| 46 | public const INCLUDE_AUTOPATROL_INFO = 'autopatrol'; |
| 47 | public const INCLUDE_SIZES = 'sizes'; |
| 48 | public const INCLUDE_LOG_INFO = 'loginfo'; |
| 49 | public const INCLUDE_TAGS = 'tags'; |
| 50 | |
| 51 | // FILTER_* constants are part of public API (are used in ApiQueryWatchlist and |
| 52 | // ApiQueryWatchlistRaw classes) and should not be changed. |
| 53 | // Changing values of those constants will result in a breaking change in the API |
| 54 | public const FILTER_MINOR = 'minor'; |
| 55 | public const FILTER_NOT_MINOR = '!minor'; |
| 56 | public const FILTER_BOT = 'bot'; |
| 57 | public const FILTER_NOT_BOT = '!bot'; |
| 58 | public const FILTER_ANON = 'anon'; |
| 59 | public const FILTER_NOT_ANON = '!anon'; |
| 60 | public const FILTER_PATROLLED = 'patrolled'; |
| 61 | public const FILTER_NOT_PATROLLED = '!patrolled'; |
| 62 | public const FILTER_AUTOPATROLLED = 'autopatrolled'; |
| 63 | public const FILTER_NOT_AUTOPATROLLED = '!autopatrolled'; |
| 64 | public const FILTER_UNREAD = 'unread'; |
| 65 | public const FILTER_NOT_UNREAD = '!unread'; |
| 66 | public const FILTER_CHANGED = 'changed'; |
| 67 | public const FILTER_NOT_CHANGED = '!changed'; |
| 68 | |
| 69 | public const SORT_ASC = 'ASC'; |
| 70 | public const SORT_DESC = 'DESC'; |
| 71 | |
| 72 | /** |
| 73 | * @var IConnectionProvider |
| 74 | */ |
| 75 | private $dbProvider; |
| 76 | |
| 77 | /** @var WatchedItemQueryServiceExtension[]|null */ |
| 78 | private $extensions = null; |
| 79 | |
| 80 | /** @var CommentStore */ |
| 81 | private $commentStore; |
| 82 | |
| 83 | /** @var WatchedItemStoreInterface */ |
| 84 | private $watchedItemStore; |
| 85 | |
| 86 | /** @var HookRunner */ |
| 87 | private $hookRunner; |
| 88 | |
| 89 | /** @var UserOptionsLookup */ |
| 90 | private $userOptionsLookup; |
| 91 | |
| 92 | /** @var TempUserConfig */ |
| 93 | private $tempUserConfig; |
| 94 | |
| 95 | /** |
| 96 | * @var bool Correlates to $wgWatchlistExpiry feature flag. |
| 97 | */ |
| 98 | private $expiryEnabled; |
| 99 | |
| 100 | /** |
| 101 | * @var int Max query execution time |
| 102 | */ |
| 103 | private $maxQueryExecutionTime; |
| 104 | |
| 105 | public function __construct( |
| 106 | IConnectionProvider $dbProvider, |
| 107 | CommentStore $commentStore, |
| 108 | WatchedItemStoreInterface $watchedItemStore, |
| 109 | HookContainer $hookContainer, |
| 110 | UserOptionsLookup $userOptionsLookup, |
| 111 | TempUserConfig $tempUserConfig, |
| 112 | bool $expiryEnabled = false, |
| 113 | int $maxQueryExecutionTime = 0 |
| 114 | ) { |
| 115 | $this->dbProvider = $dbProvider; |
| 116 | $this->commentStore = $commentStore; |
| 117 | $this->watchedItemStore = $watchedItemStore; |
| 118 | $this->hookRunner = new HookRunner( $hookContainer ); |
| 119 | $this->userOptionsLookup = $userOptionsLookup; |
| 120 | $this->tempUserConfig = $tempUserConfig; |
| 121 | $this->expiryEnabled = $expiryEnabled; |
| 122 | $this->maxQueryExecutionTime = $maxQueryExecutionTime; |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * @return WatchedItemQueryServiceExtension[] |
| 127 | */ |
| 128 | private function getExtensions() { |
| 129 | if ( $this->extensions === null ) { |
| 130 | $this->extensions = []; |
| 131 | $this->hookRunner->onWatchedItemQueryServiceExtensions( $this->extensions, $this ); |
| 132 | } |
| 133 | return $this->extensions; |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * @param User $user |
| 138 | * @param array $options Allowed keys: |
| 139 | * 'includeFields' => string[] RecentChange fields to be included in the result, |
| 140 | * self::INCLUDE_* constants should be used |
| 141 | * 'filters' => string[] optional filters to narrow down resulted items |
| 142 | * 'namespaceIds' => int[] optional namespace IDs to filter by |
| 143 | * (defaults to all namespaces) |
| 144 | * 'allRevisions' => bool return multiple revisions of the same page if true, |
| 145 | * only the most recent if false (default) |
| 146 | * 'rcTypes' => int[] which types of RecentChanges to include |
| 147 | * (defaults to all types), allowed values: RC_EDIT, RC_NEW, |
| 148 | * RC_LOG, RC_EXTERNAL, RC_CATEGORIZE |
| 149 | * 'onlyByUser' => string only list changes by a specified user |
| 150 | * 'notByUser' => string do not include changes by a specified user |
| 151 | * 'dir' => string in which direction to enumerate, accepted values: |
| 152 | * - DIR_OLDER list newest first |
| 153 | * - DIR_NEWER list oldest first |
| 154 | * 'start' => string (format accepted by wfTimestamp) requires 'dir' option, |
| 155 | * timestamp to start enumerating from |
| 156 | * 'end' => string (format accepted by wfTimestamp) requires 'dir' option, |
| 157 | * timestamp to end enumerating |
| 158 | * 'watchlistOwner' => UserIdentity user whose watchlist items should be listed if different |
| 159 | * than the one specified with $user param, requires |
| 160 | * 'watchlistOwnerToken' option |
| 161 | * 'watchlistOwnerToken' => string a watchlist token used to access another user's |
| 162 | * watchlist, used with 'watchlistOwnerToken' option |
| 163 | * 'limit' => int maximum numbers of items to return |
| 164 | * 'usedInGenerator' => bool include only RecentChange id field required by the |
| 165 | * generator ('rc_cur_id' or 'rc_this_oldid') if true, or all |
| 166 | * id fields ('rc_cur_id', 'rc_this_oldid', 'rc_last_oldid') |
| 167 | * if false (default) |
| 168 | * @param array|null &$startFrom Continuation value: [ string $rcTimestamp, int $rcId ] |
| 169 | * @return array[] Array of pairs ( WatchedItem $watchedItem, string[] $recentChangeInfo ), |
| 170 | * where $recentChangeInfo contains the following keys: |
| 171 | * - 'rc_id', |
| 172 | * - 'rc_namespace', |
| 173 | * - 'rc_title', |
| 174 | * - 'rc_timestamp', |
| 175 | * - 'rc_type', |
| 176 | * - 'rc_deleted', |
| 177 | * Additional keys could be added by specifying the 'includeFields' option |
| 178 | */ |
| 179 | public function getWatchedItemsWithRecentChangeInfo( |
| 180 | User $user, array $options = [], &$startFrom = null |
| 181 | ) { |
| 182 | $options += [ |
| 183 | 'includeFields' => [], |
| 184 | 'namespaceIds' => [], |
| 185 | 'filters' => [], |
| 186 | 'allRevisions' => false, |
| 187 | 'usedInGenerator' => false |
| 188 | ]; |
| 189 | |
| 190 | Assert::parameter( |
| 191 | !isset( $options['rcTypes'] ) |
| 192 | || !array_diff( $options['rcTypes'], [ RC_EDIT, RC_NEW, RC_LOG, RC_EXTERNAL, RC_CATEGORIZE ] ), |
| 193 | '$options[\'rcTypes\']', |
| 194 | 'must be an array containing only: RC_EDIT, RC_NEW, RC_LOG, RC_EXTERNAL and/or RC_CATEGORIZE' |
| 195 | ); |
| 196 | Assert::parameter( |
| 197 | !isset( $options['dir'] ) || in_array( $options['dir'], [ self::DIR_OLDER, self::DIR_NEWER ] ), |
| 198 | '$options[\'dir\']', |
| 199 | 'must be DIR_OLDER or DIR_NEWER' |
| 200 | ); |
| 201 | Assert::parameter( |
| 202 | ( !isset( $options['start'] ) && !isset( $options['end'] ) && $startFrom === null ) |
| 203 | || isset( $options['dir'] ), |
| 204 | '$options[\'dir\']', |
| 205 | 'must be provided when providing the "start" or "end" options or the $startFrom parameter' |
| 206 | ); |
| 207 | Assert::parameter( |
| 208 | !isset( $options['startFrom'] ), |
| 209 | '$options[\'startFrom\']', |
| 210 | 'must not be provided, use $startFrom instead' |
| 211 | ); |
| 212 | Assert::parameter( |
| 213 | !isset( $startFrom ) || ( is_array( $startFrom ) && count( $startFrom ) === 2 ), |
| 214 | '$startFrom', |
| 215 | 'must be a two-element array' |
| 216 | ); |
| 217 | if ( array_key_exists( 'watchlistOwner', $options ) ) { |
| 218 | Assert::parameterType( |
| 219 | UserIdentity::class, |
| 220 | $options['watchlistOwner'], |
| 221 | '$options[\'watchlistOwner\']' |
| 222 | ); |
| 223 | Assert::parameter( |
| 224 | isset( $options['watchlistOwnerToken'] ), |
| 225 | '$options[\'watchlistOwnerToken\']', |
| 226 | 'must be provided when providing watchlistOwner option' |
| 227 | ); |
| 228 | } |
| 229 | |
| 230 | $db = $this->dbProvider->getReplicaDatabase(); |
| 231 | |
| 232 | $tables = $this->getWatchedItemsWithRCInfoQueryTables( $options ); |
| 233 | $fields = $this->getWatchedItemsWithRCInfoQueryFields( $options ); |
| 234 | $conds = $this->getWatchedItemsWithRCInfoQueryConds( $db, $user, $options ); |
| 235 | $dbOptions = $this->getWatchedItemsWithRCInfoQueryDbOptions( $options ); |
| 236 | $joinConds = $this->getWatchedItemsWithRCInfoQueryJoinConds( $options ); |
| 237 | |
| 238 | if ( $startFrom !== null ) { |
| 239 | $conds[] = $this->getStartFromConds( $db, $options, $startFrom ); |
| 240 | } |
| 241 | |
| 242 | foreach ( $this->getExtensions() as $extension ) { |
| 243 | $extension->modifyWatchedItemsWithRCInfoQuery( |
| 244 | $user, $options, $db, |
| 245 | $tables, |
| 246 | $fields, |
| 247 | $conds, |
| 248 | $dbOptions, |
| 249 | $joinConds |
| 250 | ); |
| 251 | } |
| 252 | |
| 253 | $res = $db->newSelectQueryBuilder() |
| 254 | ->tables( $tables ) |
| 255 | ->fields( $fields ) |
| 256 | ->conds( $conds ) |
| 257 | ->caller( __METHOD__ ) |
| 258 | ->options( $dbOptions ) |
| 259 | ->joinConds( $joinConds ) |
| 260 | ->fetchResultSet(); |
| 261 | |
| 262 | $limit = $dbOptions['LIMIT'] ?? INF; |
| 263 | $items = []; |
| 264 | $startFrom = null; |
| 265 | foreach ( $res as $row ) { |
| 266 | if ( --$limit <= 0 ) { |
| 267 | $startFrom = [ $row->rc_timestamp, $row->rc_id ]; |
| 268 | break; |
| 269 | } |
| 270 | |
| 271 | $target = new TitleValue( (int)$row->rc_namespace, $row->rc_title ); |
| 272 | $items[] = [ |
| 273 | new WatchedItem( |
| 274 | $user, |
| 275 | $target, |
| 276 | $this->watchedItemStore->getLatestNotificationTimestamp( |
| 277 | $row->wl_notificationtimestamp, $user, $target |
| 278 | ), |
| 279 | $row->we_expiry ?? null |
| 280 | ), |
| 281 | $this->getRecentChangeFieldsFromRow( $row ) |
| 282 | ]; |
| 283 | } |
| 284 | |
| 285 | foreach ( $this->getExtensions() as $extension ) { |
| 286 | $extension->modifyWatchedItemsWithRCInfo( $user, $options, $db, $items, $res, $startFrom ); |
| 287 | } |
| 288 | |
| 289 | return $items; |
| 290 | } |
| 291 | |
| 292 | /** |
| 293 | * For simple listing of user's watchlist items, see WatchedItemStore::getWatchedItemsForUser |
| 294 | * |
| 295 | * @param UserIdentity $user |
| 296 | * @param array $options Allowed keys: |
| 297 | * 'sort' => string optional sorting by namespace ID and title |
| 298 | * one of the self::SORT_* constants |
| 299 | * 'namespaceIds' => int[] optional namespace IDs to filter by (defaults to all namespaces) |
| 300 | * 'limit' => int maximum number of items to return |
| 301 | * 'filter' => string optional filter, one of the self::FILTER_* constants |
| 302 | * 'from' => LinkTarget requires 'sort' key, only return items starting from |
| 303 | * those related to the link target |
| 304 | * 'until' => LinkTarget requires 'sort' key, only return items until |
| 305 | * those related to the link target |
| 306 | * 'startFrom' => LinkTarget requires 'sort' key, only return items starting from |
| 307 | * those related to the link target, allows to skip some link targets |
| 308 | * specified using the form option |
| 309 | * @return WatchedItem[] |
| 310 | */ |
| 311 | public function getWatchedItemsForUser( UserIdentity $user, array $options = [] ) { |
| 312 | if ( !$user->isRegistered() ) { |
| 313 | // TODO: should this just return an empty array or rather complain loud at this point |
| 314 | // as e.g. ApiBase::getWatchlistUser does? |
| 315 | return []; |
| 316 | } |
| 317 | |
| 318 | $options += [ 'namespaceIds' => [] ]; |
| 319 | |
| 320 | Assert::parameter( |
| 321 | !isset( $options['sort'] ) || in_array( $options['sort'], [ self::SORT_ASC, self::SORT_DESC ] ), |
| 322 | '$options[\'sort\']', |
| 323 | 'must be SORT_ASC or SORT_DESC' |
| 324 | ); |
| 325 | Assert::parameter( |
| 326 | !isset( $options['filter'] ) || in_array( |
| 327 | $options['filter'], [ self::FILTER_CHANGED, self::FILTER_NOT_CHANGED ] |
| 328 | ), |
| 329 | '$options[\'filter\']', |
| 330 | 'must be FILTER_CHANGED or FILTER_NOT_CHANGED' |
| 331 | ); |
| 332 | Assert::parameter( |
| 333 | ( !isset( $options['from'] ) && !isset( $options['until'] ) && !isset( $options['startFrom'] ) ) |
| 334 | || isset( $options['sort'] ), |
| 335 | '$options[\'sort\']', |
| 336 | 'must be provided if any of "from", "until", "startFrom" options is provided' |
| 337 | ); |
| 338 | |
| 339 | $db = $this->dbProvider->getReplicaDatabase(); |
| 340 | |
| 341 | $queryBuilder = $db->newSelectQueryBuilder() |
| 342 | ->select( [ 'wl_namespace', 'wl_title', 'wl_notificationtimestamp' ] ) |
| 343 | ->from( 'watchlist' ) |
| 344 | ->caller( __METHOD__ ); |
| 345 | $this->addQueryCondsForWatchedItemsForUser( $db, $user, $options, $queryBuilder ); |
| 346 | $this->addQueryDbOptionsForWatchedItemsForUser( $options, $queryBuilder ); |
| 347 | |
| 348 | if ( $this->expiryEnabled ) { |
| 349 | // If expiries are enabled, join with the watchlist_expiry table and exclude expired items. |
| 350 | $queryBuilder->leftJoin( 'watchlist_expiry', null, 'wl_id = we_item' ) |
| 351 | ->andWhere( $db->expr( 'we_expiry', '>', $db->timestamp() )->or( 'we_expiry', '=', null ) ); |
| 352 | } |
| 353 | $res = $queryBuilder->fetchResultSet(); |
| 354 | |
| 355 | $watchedItems = []; |
| 356 | foreach ( $res as $row ) { |
| 357 | $target = new TitleValue( (int)$row->wl_namespace, $row->wl_title ); |
| 358 | // todo these could all be cached at some point? |
| 359 | $watchedItems[] = new WatchedItem( |
| 360 | $user, |
| 361 | $target, |
| 362 | $this->watchedItemStore->getLatestNotificationTimestamp( |
| 363 | $row->wl_notificationtimestamp, $user, $target |
| 364 | ), |
| 365 | $row->we_expiry ?? null |
| 366 | ); |
| 367 | } |
| 368 | |
| 369 | return $watchedItems; |
| 370 | } |
| 371 | |
| 372 | private function getRecentChangeFieldsFromRow( \stdClass $row ) { |
| 373 | return array_filter( |
| 374 | get_object_vars( $row ), |
| 375 | static function ( $key ) { |
| 376 | return str_starts_with( $key, 'rc_' ); |
| 377 | }, |
| 378 | ARRAY_FILTER_USE_KEY |
| 379 | ); |
| 380 | } |
| 381 | |
| 382 | private function getWatchedItemsWithRCInfoQueryTables( array $options ) { |
| 383 | $tables = [ 'recentchanges', 'watchlist' ]; |
| 384 | |
| 385 | if ( $this->expiryEnabled ) { |
| 386 | $tables[] = 'watchlist_expiry'; |
| 387 | } |
| 388 | |
| 389 | if ( !$options['allRevisions'] ) { |
| 390 | $tables[] = 'page'; |
| 391 | } |
| 392 | if ( in_array( self::INCLUDE_COMMENT, $options['includeFields'] ) ) { |
| 393 | $tables += $this->commentStore->getJoin( 'rc_comment' )['tables']; |
| 394 | } |
| 395 | if ( in_array( self::INCLUDE_USER, $options['includeFields'] ) || |
| 396 | in_array( self::INCLUDE_USER_ID, $options['includeFields'] ) || |
| 397 | in_array( self::FILTER_ANON, $options['filters'] ) || |
| 398 | in_array( self::FILTER_NOT_ANON, $options['filters'] ) || |
| 399 | array_key_exists( 'onlyByUser', $options ) || array_key_exists( 'notByUser', $options ) |
| 400 | ) { |
| 401 | $tables['watchlist_actor'] = 'actor'; |
| 402 | } |
| 403 | return $tables; |
| 404 | } |
| 405 | |
| 406 | private function getWatchedItemsWithRCInfoQueryFields( array $options ) { |
| 407 | $fields = [ |
| 408 | 'rc_id', |
| 409 | 'rc_namespace', |
| 410 | 'rc_title', |
| 411 | 'rc_timestamp', |
| 412 | 'rc_type', |
| 413 | 'rc_deleted', |
| 414 | 'wl_notificationtimestamp' |
| 415 | ]; |
| 416 | |
| 417 | if ( $this->expiryEnabled ) { |
| 418 | $fields[] = 'we_expiry'; |
| 419 | } |
| 420 | |
| 421 | $rcIdFields = [ |
| 422 | 'rc_cur_id', |
| 423 | 'rc_this_oldid', |
| 424 | 'rc_last_oldid', |
| 425 | ]; |
| 426 | if ( $options['usedInGenerator'] ) { |
| 427 | if ( $options['allRevisions'] ) { |
| 428 | $rcIdFields = [ 'rc_this_oldid' ]; |
| 429 | } else { |
| 430 | $rcIdFields = [ 'rc_cur_id' ]; |
| 431 | } |
| 432 | } |
| 433 | $fields = array_merge( $fields, $rcIdFields ); |
| 434 | |
| 435 | if ( in_array( self::INCLUDE_FLAGS, $options['includeFields'] ) ) { |
| 436 | $fields = array_merge( $fields, [ 'rc_type', 'rc_minor', 'rc_bot' ] ); |
| 437 | } |
| 438 | if ( in_array( self::INCLUDE_USER, $options['includeFields'] ) ) { |
| 439 | $fields['rc_user_text'] = 'watchlist_actor.actor_name'; |
| 440 | } |
| 441 | if ( in_array( self::INCLUDE_USER_ID, $options['includeFields'] ) ) { |
| 442 | $fields['rc_user'] = 'watchlist_actor.actor_user'; |
| 443 | } |
| 444 | if ( in_array( self::INCLUDE_COMMENT, $options['includeFields'] ) ) { |
| 445 | $fields += $this->commentStore->getJoin( 'rc_comment' )['fields']; |
| 446 | } |
| 447 | if ( in_array( self::INCLUDE_PATROL_INFO, $options['includeFields'] ) ) { |
| 448 | $fields = array_merge( $fields, [ 'rc_patrolled', 'rc_log_type' ] ); |
| 449 | } |
| 450 | if ( in_array( self::INCLUDE_SIZES, $options['includeFields'] ) ) { |
| 451 | $fields = array_merge( $fields, [ 'rc_old_len', 'rc_new_len' ] ); |
| 452 | } |
| 453 | if ( in_array( self::INCLUDE_LOG_INFO, $options['includeFields'] ) ) { |
| 454 | $fields = array_merge( $fields, [ 'rc_logid', 'rc_log_type', 'rc_log_action', 'rc_params' ] ); |
| 455 | } |
| 456 | if ( in_array( self::INCLUDE_TAGS, $options['includeFields'] ) ) { |
| 457 | // prefixed with rc_ to include the field in getRecentChangeFieldsFromRow |
| 458 | $fields['rc_tags'] = ChangeTags::makeTagSummarySubquery( 'recentchanges' ); |
| 459 | } |
| 460 | |
| 461 | return $fields; |
| 462 | } |
| 463 | |
| 464 | private function getWatchedItemsWithRCInfoQueryConds( |
| 465 | IReadableDatabase $db, |
| 466 | User $user, |
| 467 | array $options |
| 468 | ) { |
| 469 | $watchlistOwnerId = $this->getWatchlistOwnerId( $user, $options ); |
| 470 | $conds = [ 'wl_user' => $watchlistOwnerId ]; |
| 471 | |
| 472 | if ( $this->expiryEnabled ) { |
| 473 | $conds[] = $db->expr( 'we_expiry', '=', null )->or( 'we_expiry', '>', $db->timestamp() ); |
| 474 | } |
| 475 | |
| 476 | if ( !$options['allRevisions'] ) { |
| 477 | $conds[] = $db->makeList( |
| 478 | [ 'rc_this_oldid=page_latest', 'rc_type=' . RC_LOG ], |
| 479 | LIST_OR |
| 480 | ); |
| 481 | } |
| 482 | |
| 483 | if ( $options['namespaceIds'] ) { |
| 484 | $conds['wl_namespace'] = array_map( 'intval', $options['namespaceIds'] ); |
| 485 | } |
| 486 | |
| 487 | if ( array_key_exists( 'rcTypes', $options ) ) { |
| 488 | $conds['rc_type'] = array_map( 'intval', $options['rcTypes'] ); |
| 489 | } |
| 490 | |
| 491 | $conds = array_merge( |
| 492 | $conds, |
| 493 | $this->getWatchedItemsWithRCInfoQueryFilterConds( $db, $user, $options ) |
| 494 | ); |
| 495 | |
| 496 | $conds = array_merge( $conds, $this->getStartEndConds( $db, $options ) ); |
| 497 | |
| 498 | if ( !isset( $options['start'] ) && !isset( $options['end'] ) && $db->getType() === 'mysql' ) { |
| 499 | // This is an index optimization for mysql |
| 500 | $conds[] = $db->expr( 'rc_timestamp', '>', '' ); |
| 501 | } |
| 502 | |
| 503 | $conds = array_merge( $conds, $this->getUserRelatedConds( $db, $user, $options ) ); |
| 504 | |
| 505 | $deletedPageLogCond = $this->getExtraDeletedPageLogEntryRelatedCond( $db, $user ); |
| 506 | if ( $deletedPageLogCond ) { |
| 507 | $conds[] = $deletedPageLogCond; |
| 508 | } |
| 509 | |
| 510 | return $conds; |
| 511 | } |
| 512 | |
| 513 | private function getWatchlistOwnerId( UserIdentity $user, array $options ) { |
| 514 | if ( array_key_exists( 'watchlistOwner', $options ) ) { |
| 515 | /** @var UserIdentity $watchlistOwner */ |
| 516 | $watchlistOwner = $options['watchlistOwner']; |
| 517 | $ownersToken = |
| 518 | $this->userOptionsLookup->getOption( $watchlistOwner, 'watchlisttoken' ); |
| 519 | $token = $options['watchlistOwnerToken']; |
| 520 | if ( $ownersToken == '' || !hash_equals( $ownersToken, $token ) ) { |
| 521 | throw ApiUsageException::newWithMessage( null, 'apierror-bad-watchlist-token', 'bad_wltoken' ); |
| 522 | } |
| 523 | return $watchlistOwner->getId(); |
| 524 | } |
| 525 | return $user->getId(); |
| 526 | } |
| 527 | |
| 528 | private function getWatchedItemsWithRCInfoQueryFilterConds( |
| 529 | IReadableDatabase $dbr, |
| 530 | User $user, |
| 531 | array $options |
| 532 | ) { |
| 533 | $conds = []; |
| 534 | |
| 535 | if ( in_array( self::FILTER_MINOR, $options['filters'] ) ) { |
| 536 | $conds[] = 'rc_minor != 0'; |
| 537 | } elseif ( in_array( self::FILTER_NOT_MINOR, $options['filters'] ) ) { |
| 538 | $conds[] = 'rc_minor = 0'; |
| 539 | } |
| 540 | |
| 541 | if ( in_array( self::FILTER_BOT, $options['filters'] ) ) { |
| 542 | $conds[] = 'rc_bot != 0'; |
| 543 | } elseif ( in_array( self::FILTER_NOT_BOT, $options['filters'] ) ) { |
| 544 | $conds[] = 'rc_bot = 0'; |
| 545 | } |
| 546 | |
| 547 | // Treat temporary users as 'anon', to match ChangesListSpecialPage |
| 548 | if ( in_array( self::FILTER_ANON, $options['filters'] ) ) { |
| 549 | if ( $this->tempUserConfig->isKnown() ) { |
| 550 | $conds[] = $dbr->expr( 'watchlist_actor.actor_user', '=', null ) |
| 551 | ->orExpr( $this->tempUserConfig->getMatchCondition( $dbr, |
| 552 | 'watchlist_actor.actor_name', IExpression::LIKE ) ); |
| 553 | } else { |
| 554 | $conds[] = 'watchlist_actor.actor_user IS NULL'; |
| 555 | } |
| 556 | } elseif ( in_array( self::FILTER_NOT_ANON, $options['filters'] ) ) { |
| 557 | $conds[] = 'watchlist_actor.actor_user IS NOT NULL'; |
| 558 | if ( $this->tempUserConfig->isKnown() ) { |
| 559 | $conds[] = $this->tempUserConfig->getMatchCondition( $dbr, |
| 560 | 'watchlist_actor.actor_name', IExpression::NOT_LIKE ); |
| 561 | } |
| 562 | } |
| 563 | |
| 564 | if ( $user->useRCPatrol() || $user->useNPPatrol() ) { |
| 565 | // TODO: not sure if this should simply ignore patrolled filters if user does not have the patrol |
| 566 | // right, or maybe rather fail loud at this point, same as e.g. ApiQueryWatchlist does? |
| 567 | if ( in_array( self::FILTER_PATROLLED, $options['filters'] ) ) { |
| 568 | $conds[] = 'rc_patrolled != ' . RecentChange::PRC_UNPATROLLED; |
| 569 | } elseif ( in_array( self::FILTER_NOT_PATROLLED, $options['filters'] ) ) { |
| 570 | $conds['rc_patrolled'] = RecentChange::PRC_UNPATROLLED; |
| 571 | } |
| 572 | |
| 573 | if ( in_array( self::FILTER_AUTOPATROLLED, $options['filters'] ) ) { |
| 574 | $conds['rc_patrolled'] = RecentChange::PRC_AUTOPATROLLED; |
| 575 | } elseif ( in_array( self::FILTER_NOT_AUTOPATROLLED, $options['filters'] ) ) { |
| 576 | $conds[] = 'rc_patrolled != ' . RecentChange::PRC_AUTOPATROLLED; |
| 577 | } |
| 578 | } |
| 579 | |
| 580 | if ( in_array( self::FILTER_UNREAD, $options['filters'] ) ) { |
| 581 | $conds[] = 'rc_timestamp >= wl_notificationtimestamp'; |
| 582 | } elseif ( in_array( self::FILTER_NOT_UNREAD, $options['filters'] ) ) { |
| 583 | // TODO: should this be changed to use Database::makeList? |
| 584 | $conds[] = 'wl_notificationtimestamp IS NULL OR rc_timestamp < wl_notificationtimestamp'; |
| 585 | } |
| 586 | |
| 587 | return $conds; |
| 588 | } |
| 589 | |
| 590 | private function getStartEndConds( IReadableDatabase $db, array $options ) { |
| 591 | if ( !isset( $options['start'] ) && !isset( $options['end'] ) ) { |
| 592 | return []; |
| 593 | } |
| 594 | |
| 595 | $conds = []; |
| 596 | if ( isset( $options['start'] ) ) { |
| 597 | $after = $options['dir'] === self::DIR_OLDER ? '<=' : '>='; |
| 598 | $conds[] = $db->expr( 'rc_timestamp', $after, $db->timestamp( $options['start'] ) ); |
| 599 | } |
| 600 | if ( isset( $options['end'] ) ) { |
| 601 | $before = $options['dir'] === self::DIR_OLDER ? '>=' : '<='; |
| 602 | $conds[] = $db->expr( 'rc_timestamp', $before, $db->timestamp( $options['end'] ) ); |
| 603 | } |
| 604 | |
| 605 | return $conds; |
| 606 | } |
| 607 | |
| 608 | private function getUserRelatedConds( IReadableDatabase $db, Authority $user, array $options ) { |
| 609 | if ( !array_key_exists( 'onlyByUser', $options ) && !array_key_exists( 'notByUser', $options ) ) { |
| 610 | return []; |
| 611 | } |
| 612 | |
| 613 | $conds = []; |
| 614 | |
| 615 | if ( array_key_exists( 'onlyByUser', $options ) ) { |
| 616 | $conds['watchlist_actor.actor_name'] = $options['onlyByUser']; |
| 617 | } elseif ( array_key_exists( 'notByUser', $options ) ) { |
| 618 | $conds[] = $db->expr( 'watchlist_actor.actor_name', '!=', $options['notByUser'] ); |
| 619 | } |
| 620 | |
| 621 | // Avoid brute force searches (T19342) |
| 622 | $bitmask = 0; |
| 623 | if ( !$user->isAllowed( 'deletedhistory' ) ) { |
| 624 | $bitmask = RevisionRecord::DELETED_USER; |
| 625 | } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) { |
| 626 | $bitmask = RevisionRecord::DELETED_USER | RevisionRecord::DELETED_RESTRICTED; |
| 627 | } |
| 628 | if ( $bitmask ) { |
| 629 | $conds[] = $db->bitAnd( 'rc_deleted', $bitmask ) . " != $bitmask"; |
| 630 | } |
| 631 | |
| 632 | return $conds; |
| 633 | } |
| 634 | |
| 635 | private function getExtraDeletedPageLogEntryRelatedCond( IReadableDatabase $db, Authority $user ) { |
| 636 | // LogPage::DELETED_ACTION hides the affected page, too. So hide those |
| 637 | // entirely from the watchlist, or someone could guess the title. |
| 638 | $bitmask = 0; |
| 639 | if ( !$user->isAllowed( 'deletedhistory' ) ) { |
| 640 | $bitmask = LogPage::DELETED_ACTION; |
| 641 | } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) { |
| 642 | $bitmask = LogPage::DELETED_ACTION | LogPage::DELETED_RESTRICTED; |
| 643 | } |
| 644 | if ( $bitmask ) { |
| 645 | return $db->makeList( [ |
| 646 | 'rc_type != ' . RC_LOG, |
| 647 | $db->bitAnd( 'rc_deleted', $bitmask ) . " != $bitmask", |
| 648 | ], LIST_OR ); |
| 649 | } |
| 650 | return ''; |
| 651 | } |
| 652 | |
| 653 | private function getStartFromConds( IReadableDatabase $db, array $options, array $startFrom ) { |
| 654 | $op = $options['dir'] === self::DIR_OLDER ? '<=' : '>='; |
| 655 | [ $rcTimestamp, $rcId ] = $startFrom; |
| 656 | $rcTimestamp = $db->timestamp( $rcTimestamp ); |
| 657 | $rcId = (int)$rcId; |
| 658 | return $db->buildComparison( $op, [ |
| 659 | 'rc_timestamp' => $rcTimestamp, |
| 660 | 'rc_id' => $rcId, |
| 661 | ] ); |
| 662 | } |
| 663 | |
| 664 | private function addQueryCondsForWatchedItemsForUser( |
| 665 | IReadableDatabase $db, UserIdentity $user, array $options, SelectQueryBuilder $queryBuilder |
| 666 | ) { |
| 667 | $queryBuilder->where( [ 'wl_user' => $user->getId() ] ); |
| 668 | if ( $options['namespaceIds'] ) { |
| 669 | $queryBuilder->where( [ 'wl_namespace' => array_map( 'intval', $options['namespaceIds'] ) ] ); |
| 670 | } |
| 671 | if ( isset( $options['filter'] ) ) { |
| 672 | $filter = $options['filter']; |
| 673 | if ( $filter === self::FILTER_CHANGED ) { |
| 674 | $queryBuilder->where( 'wl_notificationtimestamp IS NOT NULL' ); |
| 675 | } else { |
| 676 | $queryBuilder->where( 'wl_notificationtimestamp IS NULL' ); |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | if ( isset( $options['from'] ) ) { |
| 681 | $op = $options['sort'] === self::SORT_ASC ? '>=' : '<='; |
| 682 | $queryBuilder->where( $this->getFromUntilTargetConds( $db, $options['from'], $op ) ); |
| 683 | } |
| 684 | if ( isset( $options['until'] ) ) { |
| 685 | $op = $options['sort'] === self::SORT_ASC ? '<=' : '>='; |
| 686 | $queryBuilder->where( $this->getFromUntilTargetConds( $db, $options['until'], $op ) ); |
| 687 | } |
| 688 | if ( isset( $options['startFrom'] ) ) { |
| 689 | $op = $options['sort'] === self::SORT_ASC ? '>=' : '<='; |
| 690 | $queryBuilder->where( $this->getFromUntilTargetConds( $db, $options['startFrom'], $op ) ); |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | /** |
| 695 | * Creates a query condition part for getting only items before or after the given link target |
| 696 | * (while ordering using $sort mode) |
| 697 | * |
| 698 | * @param IReadableDatabase $db |
| 699 | * @param LinkTarget $target |
| 700 | * @param string $op comparison operator to use in the conditions |
| 701 | * @return string |
| 702 | */ |
| 703 | private function getFromUntilTargetConds( IReadableDatabase $db, LinkTarget $target, $op ) { |
| 704 | return $db->buildComparison( $op, [ |
| 705 | 'wl_namespace' => $target->getNamespace(), |
| 706 | 'wl_title' => $target->getDBkey(), |
| 707 | ] ); |
| 708 | } |
| 709 | |
| 710 | private function getWatchedItemsWithRCInfoQueryDbOptions( array $options ) { |
| 711 | $dbOptions = []; |
| 712 | |
| 713 | if ( array_key_exists( 'dir', $options ) ) { |
| 714 | $sort = $options['dir'] === self::DIR_OLDER ? ' DESC' : ''; |
| 715 | $dbOptions['ORDER BY'] = [ 'rc_timestamp' . $sort, 'rc_id' . $sort ]; |
| 716 | } |
| 717 | |
| 718 | if ( array_key_exists( 'limit', $options ) ) { |
| 719 | $dbOptions['LIMIT'] = (int)$options['limit'] + 1; |
| 720 | } |
| 721 | if ( $this->maxQueryExecutionTime ) { |
| 722 | $dbOptions['MAX_EXECUTION_TIME'] = $this->maxQueryExecutionTime; |
| 723 | } |
| 724 | return $dbOptions; |
| 725 | } |
| 726 | |
| 727 | private function addQueryDbOptionsForWatchedItemsForUser( array $options, SelectQueryBuilder $queryBuilder ) { |
| 728 | if ( array_key_exists( 'sort', $options ) ) { |
| 729 | if ( count( $options['namespaceIds'] ) !== 1 ) { |
| 730 | $queryBuilder->orderBy( 'wl_namespace', $options['sort'] ); |
| 731 | } |
| 732 | $queryBuilder->orderBy( 'wl_title', $options['sort'] ); |
| 733 | } |
| 734 | if ( array_key_exists( 'limit', $options ) ) { |
| 735 | $queryBuilder->limit( (int)$options['limit'] ); |
| 736 | } |
| 737 | if ( $this->maxQueryExecutionTime ) { |
| 738 | $queryBuilder->setMaxExecutionTime( $this->maxQueryExecutionTime ); |
| 739 | } |
| 740 | } |
| 741 | |
| 742 | private function getWatchedItemsWithRCInfoQueryJoinConds( array $options ) { |
| 743 | $joinConds = [ |
| 744 | 'watchlist' => [ 'JOIN', |
| 745 | [ |
| 746 | 'wl_namespace=rc_namespace', |
| 747 | 'wl_title=rc_title' |
| 748 | ] |
| 749 | ] |
| 750 | ]; |
| 751 | |
| 752 | if ( $this->expiryEnabled ) { |
| 753 | $joinConds['watchlist_expiry'] = [ 'LEFT JOIN', 'wl_id = we_item' ]; |
| 754 | } |
| 755 | |
| 756 | if ( !$options['allRevisions'] ) { |
| 757 | $joinConds['page'] = [ 'LEFT JOIN', 'rc_cur_id=page_id' ]; |
| 758 | } |
| 759 | if ( in_array( self::INCLUDE_COMMENT, $options['includeFields'] ) ) { |
| 760 | $joinConds += $this->commentStore->getJoin( 'rc_comment' )['joins']; |
| 761 | } |
| 762 | if ( in_array( self::INCLUDE_USER, $options['includeFields'] ) || |
| 763 | in_array( self::INCLUDE_USER_ID, $options['includeFields'] ) || |
| 764 | in_array( self::FILTER_ANON, $options['filters'] ) || |
| 765 | in_array( self::FILTER_NOT_ANON, $options['filters'] ) || |
| 766 | array_key_exists( 'onlyByUser', $options ) || array_key_exists( 'notByUser', $options ) |
| 767 | ) { |
| 768 | $joinConds['watchlist_actor'] = [ 'JOIN', 'actor_id=rc_actor' ]; |
| 769 | } |
| 770 | return $joinConds; |
| 771 | } |
| 772 | |
| 773 | } |
| 774 | /** @deprecated class alias since 1.43 */ |
| 775 | class_alias( WatchedItemQueryService::class, 'WatchedItemQueryService' ); |