Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
| Total | |
0.00% |
0 / 242 |
|
0.00% |
0 / 13 |
CRAP | |
0.00% |
0 / 1 |
| PageHistoryHandler | |
0.00% |
0 / 242 |
|
0.00% |
0 / 13 |
4970 | |
0.00% |
0 / 1 |
| __construct | |
0.00% |
0 / 7 |
|
0.00% |
0 / 1 |
2 | |||
| getRedirectHelper | |
0.00% |
0 / 6 |
|
0.00% |
0 / 1 |
2 | |||
| getPage | |
0.00% |
0 / 5 |
|
0.00% |
0 / 1 |
6 | |||
| run | |
0.00% |
0 / 58 |
|
0.00% |
0 / 1 |
272 | |||
| getDbResults | |
0.00% |
0 / 50 |
|
0.00% |
0 / 1 |
156 | |||
| getBitmask | |
0.00% |
0 / 6 |
|
0.00% |
0 / 1 |
12 | |||
| processDbResults | |
0.00% |
0 / 72 |
|
0.00% |
0 / 1 |
756 | |||
| needsWriteAccess | |
0.00% |
0 / 1 |
|
0.00% |
0 / 1 |
2 | |||
| getParamSettings | |
0.00% |
0 / 26 |
|
0.00% |
0 / 1 |
2 | |||
| getETag | |
0.00% |
0 / 4 |
|
0.00% |
0 / 1 |
6 | |||
| getLastModified | |
0.00% |
0 / 5 |
|
0.00% |
0 / 1 |
6 | |||
| hasRepresentation | |
0.00% |
0 / 1 |
|
0.00% |
0 / 1 |
2 | |||
| getResponseBodySchemaFileName | |
0.00% |
0 / 1 |
|
0.00% |
0 / 1 |
2 | |||
| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Rest\Handler; |
| 4 | |
| 5 | use ChangeTags; |
| 6 | use MediaWiki\Page\ExistingPageRecord; |
| 7 | use MediaWiki\Page\PageLookup; |
| 8 | use MediaWiki\Permissions\GroupPermissionsLookup; |
| 9 | use MediaWiki\Rest\Handler; |
| 10 | use MediaWiki\Rest\Handler\Helper\PageRedirectHelper; |
| 11 | use MediaWiki\Rest\Handler\Helper\PageRestHelperFactory; |
| 12 | use MediaWiki\Rest\LocalizedHttpException; |
| 13 | use MediaWiki\Rest\Response; |
| 14 | use MediaWiki\Rest\SimpleHandler; |
| 15 | use MediaWiki\Revision\RevisionRecord; |
| 16 | use MediaWiki\Revision\RevisionStore; |
| 17 | use MediaWiki\Storage\NameTableAccessException; |
| 18 | use MediaWiki\Storage\NameTableStore; |
| 19 | use MediaWiki\Storage\NameTableStoreFactory; |
| 20 | use MediaWiki\Title\TitleFormatter; |
| 21 | use Wikimedia\Message\MessageValue; |
| 22 | use Wikimedia\Message\ParamType; |
| 23 | use Wikimedia\Message\ScalarParam; |
| 24 | use Wikimedia\ParamValidator\ParamValidator; |
| 25 | use Wikimedia\Rdbms\IConnectionProvider; |
| 26 | use Wikimedia\Rdbms\IDBAccessObject; |
| 27 | use Wikimedia\Rdbms\IResultWrapper; |
| 28 | use Wikimedia\Rdbms\RawSQLExpression; |
| 29 | |
| 30 | /** |
| 31 | * Handler class for Core REST API endpoints that perform operations on revisions |
| 32 | */ |
| 33 | class PageHistoryHandler extends SimpleHandler { |
| 34 | |
| 35 | private const REVISIONS_RETURN_LIMIT = 20; |
| 36 | private const ALLOWED_FILTER_TYPES = [ 'anonymous', 'bot', 'reverted', 'minor' ]; |
| 37 | |
| 38 | private RevisionStore $revisionStore; |
| 39 | private NameTableStore $changeTagDefStore; |
| 40 | private GroupPermissionsLookup $groupPermissionsLookup; |
| 41 | private IConnectionProvider $dbProvider; |
| 42 | private PageLookup $pageLookup; |
| 43 | private TitleFormatter $titleFormatter; |
| 44 | private PageRestHelperFactory $helperFactory; |
| 45 | |
| 46 | /** |
| 47 | * @var ExistingPageRecord|false|null |
| 48 | */ |
| 49 | private $page = false; |
| 50 | |
| 51 | /** |
| 52 | * RevisionStore $revisionStore |
| 53 | * |
| 54 | * @param RevisionStore $revisionStore |
| 55 | * @param NameTableStoreFactory $nameTableStoreFactory |
| 56 | * @param GroupPermissionsLookup $groupPermissionsLookup |
| 57 | * @param IConnectionProvider $dbProvider |
| 58 | * @param PageLookup $pageLookup |
| 59 | * @param TitleFormatter $titleFormatter |
| 60 | * @param PageRestHelperFactory $helperFactory |
| 61 | */ |
| 62 | public function __construct( |
| 63 | RevisionStore $revisionStore, |
| 64 | NameTableStoreFactory $nameTableStoreFactory, |
| 65 | GroupPermissionsLookup $groupPermissionsLookup, |
| 66 | IConnectionProvider $dbProvider, |
| 67 | PageLookup $pageLookup, |
| 68 | TitleFormatter $titleFormatter, |
| 69 | PageRestHelperFactory $helperFactory |
| 70 | ) { |
| 71 | $this->revisionStore = $revisionStore; |
| 72 | $this->changeTagDefStore = $nameTableStoreFactory->getChangeTagDef(); |
| 73 | $this->groupPermissionsLookup = $groupPermissionsLookup; |
| 74 | $this->dbProvider = $dbProvider; |
| 75 | $this->pageLookup = $pageLookup; |
| 76 | $this->titleFormatter = $titleFormatter; |
| 77 | $this->helperFactory = $helperFactory; |
| 78 | } |
| 79 | |
| 80 | private function getRedirectHelper(): PageRedirectHelper { |
| 81 | return $this->helperFactory->newPageRedirectHelper( |
| 82 | $this->getResponseFactory(), |
| 83 | $this->getRouter(), |
| 84 | $this->getPath(), |
| 85 | $this->getRequest() |
| 86 | ); |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * @return ExistingPageRecord|null |
| 91 | */ |
| 92 | private function getPage(): ?ExistingPageRecord { |
| 93 | if ( $this->page === false ) { |
| 94 | $this->page = $this->pageLookup->getExistingPageByText( |
| 95 | $this->getValidatedParams()['title'] |
| 96 | ); |
| 97 | } |
| 98 | return $this->page; |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * At most one of older_than and newer_than may be specified. Keep in mind that revision ids |
| 103 | * are not monotonically increasing, so a revision may be older than another but have a |
| 104 | * higher revision id. |
| 105 | * |
| 106 | * @param string $title |
| 107 | * @return Response |
| 108 | * @throws LocalizedHttpException |
| 109 | */ |
| 110 | public function run( $title ) { |
| 111 | $params = $this->getValidatedParams(); |
| 112 | if ( $params['older_than'] !== null && $params['newer_than'] !== null ) { |
| 113 | throw new LocalizedHttpException( |
| 114 | new MessageValue( 'rest-pagehistory-incompatible-params' ), 400 ); |
| 115 | } |
| 116 | |
| 117 | if ( ( $params['older_than'] !== null && $params['older_than'] < 1 ) || |
| 118 | ( $params['newer_than'] !== null && $params['newer_than'] < 1 ) |
| 119 | ) { |
| 120 | throw new LocalizedHttpException( |
| 121 | new MessageValue( 'rest-pagehistory-param-range-error' ), 400 ); |
| 122 | } |
| 123 | |
| 124 | $tagIds = []; |
| 125 | if ( $params['filter'] === 'reverted' ) { |
| 126 | foreach ( ChangeTags::REVERT_TAGS as $tagName ) { |
| 127 | try { |
| 128 | $tagIds[] = $this->changeTagDefStore->getId( $tagName ); |
| 129 | } catch ( NameTableAccessException $exception ) { |
| 130 | // If no revisions are tagged with a name, no tag id will be present |
| 131 | } |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | $page = $this->getPage(); |
| 136 | |
| 137 | if ( !$page ) { |
| 138 | throw new LocalizedHttpException( |
| 139 | new MessageValue( 'rest-nonexistent-title', |
| 140 | [ new ScalarParam( ParamType::PLAINTEXT, $title ) ] |
| 141 | ), |
| 142 | 404 |
| 143 | ); |
| 144 | } |
| 145 | if ( !$this->getAuthority()->authorizeRead( 'read', $page ) ) { |
| 146 | throw new LocalizedHttpException( |
| 147 | new MessageValue( 'rest-permission-denied-title', |
| 148 | [ new ScalarParam( ParamType::PLAINTEXT, $title ) ] ), |
| 149 | 403 |
| 150 | ); |
| 151 | } |
| 152 | |
| 153 | '@phan-var \MediaWiki\Page\ExistingPageRecord $page'; |
| 154 | $redirectResponse = $this->getRedirectHelper()->createNormalizationRedirectResponseIfNeeded( |
| 155 | $page, |
| 156 | $params['title'] ?? null |
| 157 | ); |
| 158 | |
| 159 | if ( $redirectResponse !== null ) { |
| 160 | return $redirectResponse; |
| 161 | } |
| 162 | |
| 163 | $relativeRevId = $params['older_than'] ?? $params['newer_than'] ?? 0; |
| 164 | if ( $relativeRevId ) { |
| 165 | // Confirm the relative revision exists for this page. If so, get its timestamp. |
| 166 | $rev = $this->revisionStore->getRevisionByPageId( |
| 167 | $page->getId(), |
| 168 | $relativeRevId |
| 169 | ); |
| 170 | if ( !$rev ) { |
| 171 | throw new LocalizedHttpException( |
| 172 | new MessageValue( 'rest-nonexistent-title-revision', |
| 173 | [ $relativeRevId, new ScalarParam( ParamType::PLAINTEXT, $title ) ] |
| 174 | ), |
| 175 | 404 |
| 176 | ); |
| 177 | } |
| 178 | $ts = $rev->getTimestamp(); |
| 179 | if ( $ts === null ) { |
| 180 | throw new LocalizedHttpException( |
| 181 | new MessageValue( 'rest-pagehistory-timestamp-error', |
| 182 | [ $relativeRevId ] |
| 183 | ), |
| 184 | 500 |
| 185 | ); |
| 186 | } |
| 187 | } else { |
| 188 | $ts = 0; |
| 189 | } |
| 190 | |
| 191 | $res = $this->getDbResults( $page, $params, $relativeRevId, $ts, $tagIds ); |
| 192 | $response = $this->processDbResults( $res, $page, $params ); |
| 193 | return $this->getResponseFactory()->createJson( $response ); |
| 194 | } |
| 195 | |
| 196 | /** |
| 197 | * @param ExistingPageRecord $page object identifying the page to load history for |
| 198 | * @param array $params request parameters |
| 199 | * @param int $relativeRevId relative revision id for paging, or zero if none |
| 200 | * @param int $ts timestamp for paging, or zero if none |
| 201 | * @param array $tagIds validated tags ids, or empty array if not needed for this query |
| 202 | * @return IResultWrapper|bool the results, or false if no query was executed |
| 203 | */ |
| 204 | private function getDbResults( ExistingPageRecord $page, array $params, $relativeRevId, $ts, $tagIds ) { |
| 205 | $dbr = $this->dbProvider->getReplicaDatabase(); |
| 206 | $queryBuilder = $this->revisionStore->newSelectQueryBuilder( $dbr ) |
| 207 | ->joinComment() |
| 208 | ->where( [ 'rev_page' => $page->getId() ] ) |
| 209 | // Select one more than the return limit, to learn if there are additional revisions. |
| 210 | ->limit( self::REVISIONS_RETURN_LIMIT + 1 ); |
| 211 | |
| 212 | if ( $params['filter'] ) { |
| 213 | // The validator ensures this value, if present, is one of the expected values |
| 214 | switch ( $params['filter'] ) { |
| 215 | case 'bot': |
| 216 | $subquery = $queryBuilder->newSubquery() |
| 217 | ->select( '1' ) |
| 218 | ->from( 'user_groups' ) |
| 219 | ->where( [ |
| 220 | 'actor_rev_user.actor_user = ug_user', |
| 221 | 'ug_group' => $this->groupPermissionsLookup->getGroupsWithPermission( 'bot' ), |
| 222 | $dbr->expr( 'ug_expiry', '=', null )->or( 'ug_expiry', '>=', $dbr->timestamp() ) |
| 223 | ] ); |
| 224 | $queryBuilder->andWhere( new RawSQLExpression( 'EXISTS(' . $subquery->getSQL() . ')' ) ); |
| 225 | $bitmask = $this->getBitmask(); |
| 226 | if ( $bitmask ) { |
| 227 | $queryBuilder->andWhere( $dbr->bitAnd( 'rev_deleted', $bitmask ) . " != $bitmask" ); |
| 228 | } |
| 229 | break; |
| 230 | |
| 231 | case 'anonymous': |
| 232 | $queryBuilder->andWhere( [ 'actor_user' => null ] ); |
| 233 | $bitmask = $this->getBitmask(); |
| 234 | if ( $bitmask ) { |
| 235 | $queryBuilder->andWhere( $dbr->bitAnd( 'rev_deleted', $bitmask ) . " != $bitmask" ); |
| 236 | } |
| 237 | break; |
| 238 | |
| 239 | case 'reverted': |
| 240 | if ( !$tagIds ) { |
| 241 | return false; |
| 242 | } |
| 243 | $subquery = $queryBuilder->newSubquery() |
| 244 | ->select( '1' ) |
| 245 | ->from( 'change_tag' ) |
| 246 | ->where( [ 'ct_rev_id = rev_id', 'ct_tag_id' => $tagIds ] ); |
| 247 | $queryBuilder->andWhere( new RawSQLExpression( 'EXISTS(' . $subquery->getSQL() . ')' ) ); |
| 248 | break; |
| 249 | |
| 250 | case 'minor': |
| 251 | $queryBuilder->andWhere( $dbr->expr( 'rev_minor_edit', '!=', 0 ) ); |
| 252 | break; |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | if ( $relativeRevId ) { |
| 257 | $op = $params['older_than'] ? '<' : '>'; |
| 258 | $sort = $params['older_than'] ? 'DESC' : 'ASC'; |
| 259 | $queryBuilder->andWhere( $dbr->buildComparison( $op, [ |
| 260 | 'rev_timestamp' => $dbr->timestamp( $ts ), |
| 261 | 'rev_id' => $relativeRevId, |
| 262 | ] ) ); |
| 263 | $queryBuilder->orderBy( [ 'rev_timestamp', 'rev_id' ], $sort ); |
| 264 | } else { |
| 265 | $queryBuilder->orderBy( [ 'rev_timestamp', 'rev_id' ], 'DESC' ); |
| 266 | } |
| 267 | |
| 268 | return $queryBuilder->caller( __METHOD__ )->fetchResultSet(); |
| 269 | } |
| 270 | |
| 271 | /** |
| 272 | * Helper function for rev_deleted/user rights query conditions |
| 273 | * |
| 274 | * @todo Factor out rev_deleted logic per T233222 |
| 275 | * |
| 276 | * @return int |
| 277 | */ |
| 278 | private function getBitmask() { |
| 279 | if ( !$this->getAuthority()->isAllowed( 'deletedhistory' ) ) { |
| 280 | $bitmask = RevisionRecord::DELETED_USER; |
| 281 | } elseif ( !$this->getAuthority()->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) { |
| 282 | $bitmask = RevisionRecord::DELETED_USER | RevisionRecord::DELETED_RESTRICTED; |
| 283 | } else { |
| 284 | $bitmask = 0; |
| 285 | } |
| 286 | return $bitmask; |
| 287 | } |
| 288 | |
| 289 | /** |
| 290 | * @param IResultWrapper|bool $res database results, or false if no query was executed |
| 291 | * @param ExistingPageRecord $page object identifying the page to load history for |
| 292 | * @param array $params request parameters |
| 293 | * @return array response data |
| 294 | */ |
| 295 | private function processDbResults( $res, $page, $params ) { |
| 296 | $revisions = []; |
| 297 | |
| 298 | if ( $res ) { |
| 299 | $sizes = []; |
| 300 | foreach ( $res as $row ) { |
| 301 | $rev = $this->revisionStore->newRevisionFromRow( |
| 302 | $row, |
| 303 | IDBAccessObject::READ_NORMAL, |
| 304 | $page |
| 305 | ); |
| 306 | if ( !$revisions ) { |
| 307 | $firstRevId = $row->rev_id; |
| 308 | } |
| 309 | $lastRevId = $row->rev_id; |
| 310 | |
| 311 | $revision = [ |
| 312 | 'id' => $rev->getId(), |
| 313 | 'timestamp' => wfTimestamp( TS_ISO_8601, $rev->getTimestamp() ), |
| 314 | 'minor' => $rev->isMinor(), |
| 315 | 'size' => $rev->getSize() |
| 316 | ]; |
| 317 | |
| 318 | // Remember revision sizes and parent ids for calculating deltas. If a revision's |
| 319 | // parent id is unknown, we will be unable to supply the delta for that revision. |
| 320 | $sizes[$rev->getId()] = $rev->getSize(); |
| 321 | $parentId = $rev->getParentId(); |
| 322 | if ( $parentId ) { |
| 323 | $revision['parent_id'] = $parentId; |
| 324 | } |
| 325 | |
| 326 | $comment = $rev->getComment( RevisionRecord::FOR_THIS_USER, $this->getAuthority() ); |
| 327 | $revision['comment'] = $comment ? $comment->text : null; |
| 328 | |
| 329 | $revUser = $rev->getUser( RevisionRecord::FOR_THIS_USER, $this->getAuthority() ); |
| 330 | if ( $revUser ) { |
| 331 | $revision['user'] = [ |
| 332 | 'id' => $revUser->isRegistered() ? $revUser->getId() : null, |
| 333 | 'name' => $revUser->getName() |
| 334 | ]; |
| 335 | } else { |
| 336 | $revision['user'] = null; |
| 337 | } |
| 338 | |
| 339 | $revisions[] = $revision; |
| 340 | |
| 341 | // Break manually at the return limit. We may have more results than we can return. |
| 342 | if ( count( $revisions ) == self::REVISIONS_RETURN_LIMIT ) { |
| 343 | break; |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | // Request any parent sizes that we do not already know, then calculate deltas |
| 348 | $unknownSizes = []; |
| 349 | foreach ( $revisions as $revision ) { |
| 350 | if ( isset( $revision['parent_id'] ) && !isset( $sizes[$revision['parent_id']] ) ) { |
| 351 | $unknownSizes[] = $revision['parent_id']; |
| 352 | } |
| 353 | } |
| 354 | if ( $unknownSizes ) { |
| 355 | $sizes += $this->revisionStore->getRevisionSizes( $unknownSizes ); |
| 356 | } |
| 357 | foreach ( $revisions as &$revision ) { |
| 358 | $revision['delta'] = null; |
| 359 | if ( isset( $revision['parent_id'] ) ) { |
| 360 | if ( isset( $sizes[$revision['parent_id']] ) ) { |
| 361 | $revision['delta'] = $revision['size'] - $sizes[$revision['parent_id']]; |
| 362 | } |
| 363 | |
| 364 | // We only remembered this for delta calculations. We do not want to return it. |
| 365 | unset( $revision['parent_id'] ); |
| 366 | } |
| 367 | } |
| 368 | |
| 369 | if ( $revisions && $params['newer_than'] ) { |
| 370 | $revisions = array_reverse( $revisions ); |
| 371 | // @phan-suppress-next-next-line PhanPossiblyUndeclaredVariable |
| 372 | // $lastRevId is declared because $res has one element |
| 373 | $temp = $lastRevId; |
| 374 | // @phan-suppress-next-next-line PhanPossiblyUndeclaredVariable |
| 375 | // $firstRevId is declared because $res has one element |
| 376 | $lastRevId = $firstRevId; |
| 377 | $firstRevId = $temp; |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | $response = [ |
| 382 | 'revisions' => $revisions |
| 383 | ]; |
| 384 | |
| 385 | // Omit newer/older if there are no additional corresponding revisions. |
| 386 | // This facilitates clients doing "paging" style api operations. |
| 387 | if ( $revisions ) { |
| 388 | if ( $params['newer_than'] || $res->numRows() > self::REVISIONS_RETURN_LIMIT ) { |
| 389 | // @phan-suppress-next-next-line PhanPossiblyUndeclaredVariable |
| 390 | // $lastRevId is declared because $res has one element |
| 391 | $older = $lastRevId; |
| 392 | } |
| 393 | if ( $params['older_than'] || |
| 394 | ( $params['newer_than'] && $res->numRows() > self::REVISIONS_RETURN_LIMIT ) |
| 395 | ) { |
| 396 | // @phan-suppress-next-next-line PhanPossiblyUndeclaredVariable |
| 397 | // $firstRevId is declared because $res has one element |
| 398 | $newer = $firstRevId; |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | $queryParts = []; |
| 403 | |
| 404 | if ( isset( $params['filter'] ) ) { |
| 405 | $queryParts['filter'] = $params['filter']; |
| 406 | } |
| 407 | |
| 408 | $pathParams = [ 'title' => $this->titleFormatter->getPrefixedDBkey( $page ) ]; |
| 409 | |
| 410 | $response['latest'] = $this->getRouteUrl( $pathParams, $queryParts ); |
| 411 | |
| 412 | if ( isset( $older ) ) { |
| 413 | $response['older'] = |
| 414 | $this->getRouteUrl( $pathParams, $queryParts + [ 'older_than' => $older ] ); |
| 415 | } |
| 416 | if ( isset( $newer ) ) { |
| 417 | $response['newer'] = |
| 418 | $this->getRouteUrl( $pathParams, $queryParts + [ 'newer_than' => $newer ] ); |
| 419 | } |
| 420 | |
| 421 | return $response; |
| 422 | } |
| 423 | |
| 424 | public function needsWriteAccess() { |
| 425 | return false; |
| 426 | } |
| 427 | |
| 428 | public function getParamSettings() { |
| 429 | return [ |
| 430 | 'title' => [ |
| 431 | self::PARAM_SOURCE => 'path', |
| 432 | ParamValidator::PARAM_TYPE => 'string', |
| 433 | ParamValidator::PARAM_REQUIRED => true, |
| 434 | Handler::PARAM_DESCRIPTION => new MessageValue( 'rest-param-desc-pagehistory-title' ), |
| 435 | ], |
| 436 | 'older_than' => [ |
| 437 | self::PARAM_SOURCE => 'query', |
| 438 | ParamValidator::PARAM_TYPE => 'integer', |
| 439 | ParamValidator::PARAM_REQUIRED => false, |
| 440 | Handler::PARAM_DESCRIPTION => new MessageValue( 'rest-param-desc-pagehistory-older-than' ), |
| 441 | ], |
| 442 | 'newer_than' => [ |
| 443 | self::PARAM_SOURCE => 'query', |
| 444 | ParamValidator::PARAM_TYPE => 'integer', |
| 445 | ParamValidator::PARAM_REQUIRED => false, |
| 446 | Handler::PARAM_DESCRIPTION => new MessageValue( 'rest-param-desc-pagehistory-newer-than' ), |
| 447 | ], |
| 448 | 'filter' => [ |
| 449 | self::PARAM_SOURCE => 'query', |
| 450 | ParamValidator::PARAM_TYPE => self::ALLOWED_FILTER_TYPES, |
| 451 | ParamValidator::PARAM_REQUIRED => false, |
| 452 | Handler::PARAM_DESCRIPTION => new MessageValue( 'rest-param-desc-pagehistory-filter' ), |
| 453 | ], |
| 454 | ]; |
| 455 | } |
| 456 | |
| 457 | /** |
| 458 | * Returns an ETag representing a page's latest revision. |
| 459 | * |
| 460 | * @return string|null |
| 461 | */ |
| 462 | protected function getETag(): ?string { |
| 463 | $page = $this->getPage(); |
| 464 | if ( !$page ) { |
| 465 | return null; |
| 466 | } |
| 467 | |
| 468 | return '"' . $page->getLatest() . '"'; |
| 469 | } |
| 470 | |
| 471 | /** |
| 472 | * Returns the time of the last change to the page. |
| 473 | * |
| 474 | * @return string|null |
| 475 | */ |
| 476 | protected function getLastModified(): ?string { |
| 477 | $page = $this->getPage(); |
| 478 | if ( !$page ) { |
| 479 | return null; |
| 480 | } |
| 481 | |
| 482 | $rev = $this->revisionStore->getKnownCurrentRevision( $page ); |
| 483 | return $rev->getTimestamp(); |
| 484 | } |
| 485 | |
| 486 | /** |
| 487 | * @return bool |
| 488 | */ |
| 489 | protected function hasRepresentation() { |
| 490 | return (bool)$this->getPage(); |
| 491 | } |
| 492 | |
| 493 | public function getResponseBodySchemaFileName( string $method ): ?string { |
| 494 | return 'includes/Rest/Handler/Schema/PageHistory.json'; |
| 495 | } |
| 496 | } |