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| 1 | <?php |
| 2 | /** |
| 3 | * Copyright © 2014 Wikimedia Foundation and contributors |
| 4 | * |
| 5 | * Heavily based on ApiQueryDeletedrevs, |
| 6 | * Copyright © 2007 Roan Kattouw <roan.kattouw@gmail.com> |
| 7 | * |
| 8 | * @license GPL-2.0-or-later |
| 9 | * @file |
| 10 | */ |
| 11 | |
| 12 | namespace MediaWiki\Api; |
| 13 | |
| 14 | use MediaWiki\ChangeTags\ChangeTagsStore; |
| 15 | use MediaWiki\CommentFormatter\CommentFormatter; |
| 16 | use MediaWiki\Content\IContentHandlerFactory; |
| 17 | use MediaWiki\Content\Renderer\ContentRenderer; |
| 18 | use MediaWiki\Content\Transform\ContentTransformer; |
| 19 | use MediaWiki\Page\LinkBatchFactory; |
| 20 | use MediaWiki\ParamValidator\TypeDef\UserDef; |
| 21 | use MediaWiki\Parser\ParserFactory; |
| 22 | use MediaWiki\Revision\RevisionRecord; |
| 23 | use MediaWiki\Revision\RevisionStore; |
| 24 | use MediaWiki\Revision\SlotRoleRegistry; |
| 25 | use MediaWiki\Storage\NameTableAccessException; |
| 26 | use MediaWiki\Storage\NameTableStore; |
| 27 | use MediaWiki\Title\Title; |
| 28 | use MediaWiki\User\TempUser\TempUserCreator; |
| 29 | use MediaWiki\User\UserFactory; |
| 30 | use Wikimedia\ParamValidator\ParamValidator; |
| 31 | |
| 32 | /** |
| 33 | * Query module to enumerate deleted revisions for pages. |
| 34 | * |
| 35 | * @ingroup API |
| 36 | */ |
| 37 | class ApiQueryDeletedRevisions extends ApiQueryRevisionsBase { |
| 38 | |
| 39 | public function __construct( |
| 40 | ApiQuery $query, |
| 41 | string $moduleName, |
| 42 | private readonly RevisionStore $revisionStore, |
| 43 | IContentHandlerFactory $contentHandlerFactory, |
| 44 | ParserFactory $parserFactory, |
| 45 | SlotRoleRegistry $slotRoleRegistry, |
| 46 | private readonly NameTableStore $changeTagDefStore, |
| 47 | private readonly ChangeTagsStore $changeTagsStore, |
| 48 | private readonly LinkBatchFactory $linkBatchFactory, |
| 49 | ContentRenderer $contentRenderer, |
| 50 | ContentTransformer $contentTransformer, |
| 51 | CommentFormatter $commentFormatter, |
| 52 | TempUserCreator $tempUserCreator, |
| 53 | UserFactory $userFactory, |
| 54 | ) { |
| 55 | parent::__construct( |
| 56 | $query, |
| 57 | $moduleName, |
| 58 | 'drv', |
| 59 | $revisionStore, |
| 60 | $contentHandlerFactory, |
| 61 | $parserFactory, |
| 62 | $slotRoleRegistry, |
| 63 | $contentRenderer, |
| 64 | $contentTransformer, |
| 65 | $commentFormatter, |
| 66 | $tempUserCreator, |
| 67 | $userFactory |
| 68 | ); |
| 69 | } |
| 70 | |
| 71 | protected function run( ?ApiPageSet $resultPageSet = null ) { |
| 72 | $pageSet = $this->getPageSet(); |
| 73 | $pageMap = $pageSet->getGoodAndMissingTitlesByNamespace(); |
| 74 | $pageCount = count( $pageSet->getGoodAndMissingPages() ); |
| 75 | $revCount = $pageSet->getRevisionCount(); |
| 76 | if ( $revCount === 0 && $pageCount === 0 ) { |
| 77 | // Nothing to do |
| 78 | return; |
| 79 | } |
| 80 | if ( $revCount !== 0 && count( $pageSet->getDeletedRevisionIDs() ) === 0 ) { |
| 81 | // Nothing to do, revisions were supplied but none are deleted |
| 82 | return; |
| 83 | } |
| 84 | |
| 85 | $params = $this->extractRequestParams( false ); |
| 86 | |
| 87 | $db = $this->getDB(); |
| 88 | |
| 89 | $this->requireMaxOneParameter( $params, 'user', 'excludeuser' ); |
| 90 | |
| 91 | if ( $resultPageSet === null ) { |
| 92 | $this->parseParameters( $params ); |
| 93 | $arQuery = $this->revisionStore->getArchiveQueryInfo(); |
| 94 | $this->addTables( $arQuery['tables'] ); |
| 95 | $this->addFields( $arQuery['fields'] ); |
| 96 | $this->addJoinConds( $arQuery['joins'] ); |
| 97 | $this->addFields( [ 'ar_title', 'ar_namespace' ] ); |
| 98 | } else { |
| 99 | $this->limit = $this->getParameter( 'limit' ) ?: 10; |
| 100 | $this->addTables( 'archive' ); |
| 101 | $this->addFields( [ 'ar_title', 'ar_namespace', 'ar_timestamp', 'ar_rev_id', 'ar_id' ] ); |
| 102 | } |
| 103 | |
| 104 | if ( $this->fld_tags ) { |
| 105 | $this->addFields( [ |
| 106 | 'ts_tags' => $this->changeTagsStore->makeTagSummarySubquery( 'archive', $this->getAuthority() ) |
| 107 | ] ); |
| 108 | } |
| 109 | |
| 110 | if ( $params['tag'] !== null ) { |
| 111 | if ( !$this->changeTagsStore->canViewTag( $params['tag'], $this->getAuthority() ) ) { |
| 112 | $this->addWhere( '1=0' ); |
| 113 | } |
| 114 | |
| 115 | $this->addTables( 'change_tag' ); |
| 116 | $this->addJoinConds( |
| 117 | [ 'change_tag' => [ 'JOIN', [ 'ar_rev_id=ct_rev_id' ] ] ] |
| 118 | ); |
| 119 | try { |
| 120 | $this->addWhereFld( 'ct_tag_id', $this->changeTagDefStore->getId( $params['tag'] ) ); |
| 121 | } catch ( NameTableAccessException ) { |
| 122 | // Return nothing. |
| 123 | $this->addWhere( '1=0' ); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | // This means stricter restrictions |
| 128 | if ( ( $this->fld_comment || $this->fld_parsedcomment ) && |
| 129 | !$this->getAuthority()->isAllowed( 'deletedhistory' ) |
| 130 | ) { |
| 131 | $this->dieWithError( 'apierror-cantview-deleted-comment', 'permissiondenied' ); |
| 132 | } |
| 133 | if ( $this->fetchContent && !$this->getAuthority()->isAllowedAny( 'deletedtext', 'undelete' ) ) { |
| 134 | $this->dieWithError( 'apierror-cantview-deleted-revision-content', 'permissiondenied' ); |
| 135 | } |
| 136 | |
| 137 | $dir = $params['dir']; |
| 138 | |
| 139 | if ( $revCount !== 0 ) { |
| 140 | $this->addWhere( [ |
| 141 | 'ar_rev_id' => array_keys( $pageSet->getDeletedRevisionIDs() ) |
| 142 | ] ); |
| 143 | } else { |
| 144 | // We need a custom WHERE clause that matches all titles. |
| 145 | $lb = $this->linkBatchFactory->newLinkBatch( $pageSet->getGoodAndMissingPages() ); |
| 146 | $where = $lb->constructSet( 'ar', $db ); |
| 147 | $this->addWhere( $where ); |
| 148 | } |
| 149 | |
| 150 | if ( $params['user'] !== null || $params['excludeuser'] !== null ) { |
| 151 | // In the non-generator case, the actor join will already be present. |
| 152 | if ( $resultPageSet !== null ) { |
| 153 | $this->addTables( 'actor' ); |
| 154 | $this->addJoinConds( [ 'actor' => [ 'JOIN', 'actor_id=ar_actor' ] ] ); |
| 155 | } |
| 156 | if ( $params['user'] !== null ) { |
| 157 | $this->addWhereFld( 'actor_name', $params['user'] ); |
| 158 | } elseif ( $params['excludeuser'] !== null ) { |
| 159 | $this->addWhere( $db->expr( 'actor_name', '!=', $params['excludeuser'] ) ); |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | if ( $params['user'] !== null || $params['excludeuser'] !== null ) { |
| 164 | // Paranoia: avoid brute force searches (T19342) |
| 165 | if ( !$this->getAuthority()->isAllowed( 'deletedhistory' ) ) { |
| 166 | $bitmask = RevisionRecord::DELETED_USER; |
| 167 | } elseif ( !$this->getAuthority()->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) { |
| 168 | $bitmask = RevisionRecord::DELETED_USER | RevisionRecord::DELETED_RESTRICTED; |
| 169 | } else { |
| 170 | $bitmask = 0; |
| 171 | } |
| 172 | if ( $bitmask ) { |
| 173 | $this->addWhere( $db->bitAnd( 'ar_deleted', $bitmask ) . " != $bitmask" ); |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | if ( $params['continue'] !== null ) { |
| 178 | $op = ( $dir == 'newer' ? '>=' : '<=' ); |
| 179 | if ( $revCount !== 0 ) { |
| 180 | $cont = $this->parseContinueParamOrDie( $params['continue'], [ 'int', 'int' ] ); |
| 181 | $this->addWhere( $db->buildComparison( $op, [ |
| 182 | 'ar_rev_id' => $cont[0], |
| 183 | 'ar_id' => $cont[1], |
| 184 | ] ) ); |
| 185 | } else { |
| 186 | $cont = $this->parseContinueParamOrDie( $params['continue'], [ 'int', 'string', 'timestamp', 'int' ] ); |
| 187 | $this->addWhere( $db->buildComparison( $op, [ |
| 188 | 'ar_namespace' => $cont[0], |
| 189 | 'ar_title' => $cont[1], |
| 190 | 'ar_timestamp' => $db->timestamp( $cont[2] ), |
| 191 | 'ar_id' => $cont[3], |
| 192 | ] ) ); |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | $this->addOption( 'LIMIT', $this->limit + 1 ); |
| 197 | |
| 198 | if ( $revCount !== 0 ) { |
| 199 | // Sort by ar_rev_id when querying by ar_rev_id |
| 200 | $this->addWhereRange( 'ar_rev_id', $dir, null, null ); |
| 201 | } else { |
| 202 | // Sort by ns and title in the same order as timestamp for efficiency |
| 203 | // But only when not already unique in the query |
| 204 | if ( count( $pageMap ) > 1 ) { |
| 205 | $this->addWhereRange( 'ar_namespace', $dir, null, null ); |
| 206 | } |
| 207 | $oneTitle = key( reset( $pageMap ) ); |
| 208 | foreach ( $pageMap as $pages ) { |
| 209 | if ( count( $pages ) > 1 || key( $pages ) !== $oneTitle ) { |
| 210 | $this->addWhereRange( 'ar_title', $dir, null, null ); |
| 211 | break; |
| 212 | } |
| 213 | } |
| 214 | $this->addTimestampWhereRange( 'ar_timestamp', $dir, $params['start'], $params['end'] ); |
| 215 | } |
| 216 | // Include in ORDER BY for uniqueness |
| 217 | $this->addWhereRange( 'ar_id', $dir, null, null ); |
| 218 | |
| 219 | $res = $this->select( __METHOD__ ); |
| 220 | $count = 0; |
| 221 | $generated = []; |
| 222 | foreach ( $res as $row ) { |
| 223 | if ( ++$count > $this->limit ) { |
| 224 | // We've had enough |
| 225 | $this->setContinueEnumParameter( 'continue', |
| 226 | $revCount |
| 227 | ? "$row->ar_rev_id|$row->ar_id" |
| 228 | : "$row->ar_namespace|$row->ar_title|$row->ar_timestamp|$row->ar_id" |
| 229 | ); |
| 230 | break; |
| 231 | } |
| 232 | |
| 233 | if ( $resultPageSet !== null ) { |
| 234 | $generated[] = $row->ar_rev_id; |
| 235 | } else { |
| 236 | if ( !isset( $pageMap[$row->ar_namespace][$row->ar_title] ) ) { |
| 237 | // Was it converted? |
| 238 | $title = Title::makeTitle( $row->ar_namespace, $row->ar_title ); |
| 239 | $converted = $pageSet->getConvertedTitles(); |
| 240 | if ( $title && isset( $converted[$title->getPrefixedText()] ) ) { |
| 241 | $title = Title::newFromText( $converted[$title->getPrefixedText()] ); |
| 242 | if ( $title && isset( $pageMap[$title->getNamespace()][$title->getDBkey()] ) ) { |
| 243 | $pageMap[$row->ar_namespace][$row->ar_title] = |
| 244 | $pageMap[$title->getNamespace()][$title->getDBkey()]; |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | if ( !isset( $pageMap[$row->ar_namespace][$row->ar_title] ) ) { |
| 249 | ApiBase::dieDebug( |
| 250 | __METHOD__, |
| 251 | "Found row in archive (ar_id={$row->ar_id}) that didn't get processed by ApiPageSet" |
| 252 | ); |
| 253 | } |
| 254 | |
| 255 | $fit = $this->addPageSubItem( |
| 256 | $pageMap[$row->ar_namespace][$row->ar_title], |
| 257 | $this->extractRevisionInfo( $this->revisionStore->newRevisionFromArchiveRow( $row ), $row ), |
| 258 | 'rev' |
| 259 | ); |
| 260 | if ( !$fit ) { |
| 261 | $this->setContinueEnumParameter( 'continue', |
| 262 | $revCount |
| 263 | ? "$row->ar_rev_id|$row->ar_id" |
| 264 | : "$row->ar_namespace|$row->ar_title|$row->ar_timestamp|$row->ar_id" |
| 265 | ); |
| 266 | break; |
| 267 | } |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | if ( $resultPageSet !== null ) { |
| 272 | $resultPageSet->populateFromRevisionIDs( $generated ); |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | /** @inheritDoc */ |
| 277 | public function getAllowedParams() { |
| 278 | return parent::getAllowedParams() + [ |
| 279 | 'start' => [ |
| 280 | ParamValidator::PARAM_TYPE => 'timestamp', |
| 281 | ], |
| 282 | 'end' => [ |
| 283 | ParamValidator::PARAM_TYPE => 'timestamp', |
| 284 | ], |
| 285 | 'dir' => [ |
| 286 | ParamValidator::PARAM_TYPE => [ |
| 287 | 'newer', |
| 288 | 'older' |
| 289 | ], |
| 290 | ParamValidator::PARAM_DEFAULT => 'older', |
| 291 | ApiBase::PARAM_HELP_MSG => 'api-help-param-direction', |
| 292 | ApiBase::PARAM_HELP_MSG_PER_VALUE => [ |
| 293 | 'newer' => 'api-help-paramvalue-direction-newer', |
| 294 | 'older' => 'api-help-paramvalue-direction-older', |
| 295 | ], |
| 296 | ], |
| 297 | 'tag' => null, |
| 298 | 'user' => [ |
| 299 | ParamValidator::PARAM_TYPE => 'user', |
| 300 | UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'ip', 'temp', 'id', 'interwiki' ], |
| 301 | ], |
| 302 | 'excludeuser' => [ |
| 303 | ParamValidator::PARAM_TYPE => 'user', |
| 304 | UserDef::PARAM_ALLOWED_USER_TYPES => [ 'name', 'ip', 'temp', 'id', 'interwiki' ], |
| 305 | ], |
| 306 | 'continue' => [ |
| 307 | ApiBase::PARAM_HELP_MSG => 'api-help-param-continue', |
| 308 | ], |
| 309 | ]; |
| 310 | } |
| 311 | |
| 312 | /** @inheritDoc */ |
| 313 | protected function getExamplesMessages() { |
| 314 | $title = Title::newMainPage(); |
| 315 | $talkTitle = $title->getTalkPageIfDefined(); |
| 316 | $examples = [ |
| 317 | 'action=query&prop=deletedrevisions&revids=123456' |
| 318 | => 'apihelp-query+deletedrevisions-example-revids', |
| 319 | ]; |
| 320 | |
| 321 | if ( $talkTitle ) { |
| 322 | $title = rawurlencode( $title->getPrefixedText() ); |
| 323 | $talkTitle = rawurlencode( $talkTitle->getPrefixedText() ); |
| 324 | $examples["action=query&prop=deletedrevisions&titles={$title}|{$talkTitle}&" . |
| 325 | 'drvslots=*&drvprop=user|comment|content'] = 'apihelp-query+deletedrevisions-example-titles'; |
| 326 | } |
| 327 | |
| 328 | return $examples; |
| 329 | } |
| 330 | |
| 331 | /** @inheritDoc */ |
| 332 | public function getHelpUrls() { |
| 333 | return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Deletedrevisions'; |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | /** @deprecated class alias since 1.43 */ |
| 338 | class_alias( ApiQueryDeletedRevisions::class, 'ApiQueryDeletedRevisions' ); |