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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\AbuseFilter\View; |
| 4 | |
| 5 | use HTMLForm; |
| 6 | use IContextSource; |
| 7 | use MediaWiki\Extension\AbuseFilter\AbuseFilterPermissionManager; |
| 8 | use MediaWiki\Extension\AbuseFilter\ActionSpecifier; |
| 9 | use MediaWiki\Extension\AbuseFilter\Consequences\Consequence\ReversibleConsequence; |
| 10 | use MediaWiki\Extension\AbuseFilter\Consequences\ConsequencesFactory; |
| 11 | use MediaWiki\Extension\AbuseFilter\Consequences\Parameters; |
| 12 | use MediaWiki\Extension\AbuseFilter\FilterLookup; |
| 13 | use MediaWiki\Extension\AbuseFilter\SpecsFormatter; |
| 14 | use MediaWiki\Extension\AbuseFilter\Variables\UnsetVariableException; |
| 15 | use MediaWiki\Extension\AbuseFilter\Variables\VariablesBlobStore; |
| 16 | use MediaWiki\Html\Html; |
| 17 | use MediaWiki\Linker\Linker; |
| 18 | use MediaWiki\Linker\LinkRenderer; |
| 19 | use MediaWiki\SpecialPage\SpecialPage; |
| 20 | use MediaWiki\Title\TitleValue; |
| 21 | use MediaWiki\User\UserFactory; |
| 22 | use Message; |
| 23 | use PermissionsError; |
| 24 | use UnexpectedValueException; |
| 25 | use UserBlockedError; |
| 26 | use Wikimedia\Rdbms\LBFactory; |
| 27 | use Xml; |
| 28 | |
| 29 | class AbuseFilterViewRevert extends AbuseFilterView { |
| 30 | /** @var int */ |
| 31 | private $filter; |
| 32 | /** |
| 33 | * @var string|null The start time of the lookup period |
| 34 | */ |
| 35 | private $periodStart; |
| 36 | /** |
| 37 | * @var string|null The end time of the lookup period |
| 38 | */ |
| 39 | private $periodEnd; |
| 40 | /** |
| 41 | * @var string|null The reason provided for the revert |
| 42 | */ |
| 43 | private $reason; |
| 44 | /** |
| 45 | * @var LBFactory |
| 46 | */ |
| 47 | private $lbFactory; |
| 48 | /** |
| 49 | * @var UserFactory |
| 50 | */ |
| 51 | private $userFactory; |
| 52 | /** |
| 53 | * @var FilterLookup |
| 54 | */ |
| 55 | private $filterLookup; |
| 56 | /** |
| 57 | * @var ConsequencesFactory |
| 58 | */ |
| 59 | private $consequencesFactory; |
| 60 | /** |
| 61 | * @var VariablesBlobStore |
| 62 | */ |
| 63 | private $varBlobStore; |
| 64 | /** |
| 65 | * @var SpecsFormatter |
| 66 | */ |
| 67 | private $specsFormatter; |
| 68 | |
| 69 | /** |
| 70 | * @param LBFactory $lbFactory |
| 71 | * @param UserFactory $userFactory |
| 72 | * @param AbuseFilterPermissionManager $afPermManager |
| 73 | * @param FilterLookup $filterLookup |
| 74 | * @param ConsequencesFactory $consequencesFactory |
| 75 | * @param VariablesBlobStore $varBlobStore |
| 76 | * @param SpecsFormatter $specsFormatter |
| 77 | * @param IContextSource $context |
| 78 | * @param LinkRenderer $linkRenderer |
| 79 | * @param string $basePageName |
| 80 | * @param array $params |
| 81 | */ |
| 82 | public function __construct( |
| 83 | LBFactory $lbFactory, |
| 84 | UserFactory $userFactory, |
| 85 | AbuseFilterPermissionManager $afPermManager, |
| 86 | FilterLookup $filterLookup, |
| 87 | ConsequencesFactory $consequencesFactory, |
| 88 | VariablesBlobStore $varBlobStore, |
| 89 | SpecsFormatter $specsFormatter, |
| 90 | IContextSource $context, |
| 91 | LinkRenderer $linkRenderer, |
| 92 | string $basePageName, |
| 93 | array $params |
| 94 | ) { |
| 95 | parent::__construct( $afPermManager, $context, $linkRenderer, $basePageName, $params ); |
| 96 | $this->lbFactory = $lbFactory; |
| 97 | $this->userFactory = $userFactory; |
| 98 | $this->filterLookup = $filterLookup; |
| 99 | $this->consequencesFactory = $consequencesFactory; |
| 100 | $this->varBlobStore = $varBlobStore; |
| 101 | $this->specsFormatter = $specsFormatter; |
| 102 | $this->specsFormatter->setMessageLocalizer( $this->getContext() ); |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Shows the page |
| 107 | */ |
| 108 | public function show() { |
| 109 | $lang = $this->getLanguage(); |
| 110 | |
| 111 | $performer = $this->getAuthority(); |
| 112 | $out = $this->getOutput(); |
| 113 | |
| 114 | if ( !$this->afPermManager->canRevertFilterActions( $performer ) ) { |
| 115 | throw new PermissionsError( 'abusefilter-revert' ); |
| 116 | } |
| 117 | |
| 118 | $block = $performer->getBlock(); |
| 119 | if ( $block && $block->isSitewide() ) { |
| 120 | throw new UserBlockedError( $block ); |
| 121 | } |
| 122 | |
| 123 | $this->loadParameters(); |
| 124 | |
| 125 | if ( $this->attemptRevert() ) { |
| 126 | return; |
| 127 | } |
| 128 | |
| 129 | $filter = $this->filter; |
| 130 | |
| 131 | $out->addWikiMsg( 'abusefilter-revert-intro', Message::numParam( $filter ) ); |
| 132 | // Parse wikitext in this message to allow formatting of numero signs (T343994#9209383) |
| 133 | $out->setPageTitle( $this->msg( 'abusefilter-revert-title' )->numParams( $filter )->parse() ); |
| 134 | |
| 135 | // First, the search form. Limit dates to avoid huge queries |
| 136 | $RCMaxAge = $this->getConfig()->get( 'RCMaxAge' ); |
| 137 | $min = wfTimestamp( TS_ISO_8601, time() - $RCMaxAge ); |
| 138 | $max = wfTimestampNow(); |
| 139 | $filterLink = |
| 140 | $this->linkRenderer->makeLink( |
| 141 | $this->getTitle( $filter ), |
| 142 | $lang->formatNum( $filter ) |
| 143 | ); |
| 144 | $searchFields = []; |
| 145 | $searchFields['filterid'] = [ |
| 146 | 'type' => 'info', |
| 147 | 'default' => $filterLink, |
| 148 | 'raw' => true, |
| 149 | 'label-message' => 'abusefilter-revert-filter' |
| 150 | ]; |
| 151 | $searchFields['PeriodStart'] = [ |
| 152 | 'type' => 'datetime', |
| 153 | 'label-message' => 'abusefilter-revert-periodstart', |
| 154 | 'min' => $min, |
| 155 | 'max' => $max |
| 156 | ]; |
| 157 | $searchFields['PeriodEnd'] = [ |
| 158 | 'type' => 'datetime', |
| 159 | 'label-message' => 'abusefilter-revert-periodend', |
| 160 | 'min' => $min, |
| 161 | 'max' => $max |
| 162 | ]; |
| 163 | |
| 164 | HTMLForm::factory( 'ooui', $searchFields, $this->getContext() ) |
| 165 | ->setTitle( $this->getTitle( "revert/$filter" ) ) |
| 166 | ->setWrapperLegendMsg( 'abusefilter-revert-search-legend' ) |
| 167 | ->setSubmitTextMsg( 'abusefilter-revert-search' ) |
| 168 | ->setMethod( 'get' ) |
| 169 | ->setFormIdentifier( 'revert-select-date' ) |
| 170 | ->setSubmitCallback( [ $this, 'showRevertableActions' ] ) |
| 171 | ->showAlways(); |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * Show revertable actions, called as submit callback by HTMLForm |
| 176 | * @param array $formData |
| 177 | * @param HTMLForm $dateForm |
| 178 | * @return bool |
| 179 | */ |
| 180 | public function showRevertableActions( array $formData, HTMLForm $dateForm ): bool { |
| 181 | $lang = $this->getLanguage(); |
| 182 | $user = $this->getUser(); |
| 183 | $filter = $this->filter; |
| 184 | |
| 185 | // Look up all of them. |
| 186 | $results = $this->doLookup(); |
| 187 | if ( $results === [] ) { |
| 188 | $dateForm->addPostHtml( $this->msg( 'abusefilter-revert-preview-no-results' )->escaped() ); |
| 189 | return true; |
| 190 | } |
| 191 | |
| 192 | // Add a summary of everything that will be reversed. |
| 193 | $dateForm->addPostHtml( $this->msg( 'abusefilter-revert-preview-intro' )->parseAsBlock() ); |
| 194 | $list = []; |
| 195 | |
| 196 | foreach ( $results as $result ) { |
| 197 | $displayActions = []; |
| 198 | foreach ( $result['actions'] as $action ) { |
| 199 | $displayActions[] = $this->specsFormatter->getActionDisplay( $action ); |
| 200 | } |
| 201 | |
| 202 | /** @var ActionSpecifier $spec */ |
| 203 | $spec = $result['spec']; |
| 204 | $msg = $this->msg( 'abusefilter-revert-preview-item' ) |
| 205 | ->params( |
| 206 | $lang->userTimeAndDate( $result['timestamp'], $user ) |
| 207 | )->rawParams( |
| 208 | Linker::userLink( $spec->getUser()->getId(), $spec->getUser()->getName() ) |
| 209 | )->params( |
| 210 | $spec->getAction() |
| 211 | )->rawParams( |
| 212 | $this->linkRenderer->makeLink( $spec->getTitle() ) |
| 213 | )->params( |
| 214 | $lang->commaList( $displayActions ) |
| 215 | )->rawParams( |
| 216 | $this->linkRenderer->makeLink( |
| 217 | SpecialPage::getTitleFor( 'AbuseLog' ), |
| 218 | $this->msg( 'abusefilter-log-detailslink' )->text(), |
| 219 | [], |
| 220 | [ 'details' => $result['id'] ] |
| 221 | ) |
| 222 | )->params( |
| 223 | $spec->getUser()->getName() |
| 224 | )->parse(); |
| 225 | $list[] = Xml::tags( 'li', null, $msg ); |
| 226 | } |
| 227 | |
| 228 | $dateForm->addPostHtml( Xml::tags( 'ul', null, implode( "\n", $list ) ) ); |
| 229 | |
| 230 | // Add a button down the bottom. |
| 231 | $confirmForm = []; |
| 232 | $confirmForm['PeriodStart'] = [ |
| 233 | 'type' => 'hidden', |
| 234 | ]; |
| 235 | $confirmForm['PeriodEnd'] = [ |
| 236 | 'type' => 'hidden', |
| 237 | ]; |
| 238 | $confirmForm['Reason'] = [ |
| 239 | 'type' => 'text', |
| 240 | 'label-message' => 'abusefilter-revert-reasonfield', |
| 241 | 'id' => 'wpReason', |
| 242 | ]; |
| 243 | |
| 244 | $revertForm = HTMLForm::factory( 'ooui', $confirmForm, $this->getContext() ) |
| 245 | ->setTitle( $this->getTitle( "revert/$filter" ) ) |
| 246 | ->setTokenSalt( "abusefilter-revert-$filter" ) |
| 247 | ->setWrapperLegendMsg( 'abusefilter-revert-confirm-legend' ) |
| 248 | ->setSubmitTextMsg( 'abusefilter-revert-confirm' ) |
| 249 | ->prepareForm() |
| 250 | ->getHTML( true ); |
| 251 | $dateForm->addPostHtml( $revertForm ); |
| 252 | |
| 253 | return true; |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * @return array[] |
| 258 | */ |
| 259 | public function doLookup() { |
| 260 | $periodStart = $this->periodStart; |
| 261 | $periodEnd = $this->periodEnd; |
| 262 | $filter = $this->filter; |
| 263 | $dbr = $this->lbFactory->getReplicaDatabase(); |
| 264 | |
| 265 | // Only hits from local filters can be reverted |
| 266 | $conds = [ 'afl_filter_id' => $filter, 'afl_global' => 0 ]; |
| 267 | |
| 268 | if ( $periodStart !== null ) { |
| 269 | $conds[] = 'afl_timestamp >= ' . $dbr->addQuotes( $dbr->timestamp( $periodStart ) ); |
| 270 | } |
| 271 | if ( $periodEnd !== null ) { |
| 272 | $conds[] = 'afl_timestamp <= ' . $dbr->addQuotes( $dbr->timestamp( $periodEnd ) ); |
| 273 | } |
| 274 | |
| 275 | // Don't revert if there was no action, or the action was global |
| 276 | $conds[] = 'afl_actions != ' . $dbr->addQuotes( '' ); |
| 277 | $conds[] = 'afl_wiki IS NULL'; |
| 278 | |
| 279 | $selectFields = [ |
| 280 | 'afl_id', |
| 281 | 'afl_user', |
| 282 | 'afl_user_text', |
| 283 | 'afl_ip', |
| 284 | 'afl_action', |
| 285 | 'afl_actions', |
| 286 | 'afl_var_dump', |
| 287 | 'afl_timestamp', |
| 288 | 'afl_namespace', |
| 289 | 'afl_title', |
| 290 | ]; |
| 291 | $res = $dbr->select( |
| 292 | 'abuse_filter_log', |
| 293 | $selectFields, |
| 294 | $conds, |
| 295 | __METHOD__, |
| 296 | [ 'ORDER BY' => 'afl_timestamp DESC' ] |
| 297 | ); |
| 298 | |
| 299 | // TODO: get the following from ConsequencesRegistry or sth else |
| 300 | static $reversibleActions = [ 'block', 'blockautopromote', 'degroup' ]; |
| 301 | |
| 302 | $results = []; |
| 303 | foreach ( $res as $row ) { |
| 304 | $actions = explode( ',', $row->afl_actions ); |
| 305 | $currentReversibleActions = array_intersect( $actions, $reversibleActions ); |
| 306 | if ( count( $currentReversibleActions ) ) { |
| 307 | $vars = $this->varBlobStore->loadVarDump( $row->afl_var_dump ); |
| 308 | try { |
| 309 | // The variable is not lazy-loaded |
| 310 | $accountName = $vars->getComputedVariable( 'accountname' )->toNative(); |
| 311 | } catch ( UnsetVariableException $_ ) { |
| 312 | $accountName = null; |
| 313 | } |
| 314 | $results[] = [ |
| 315 | 'id' => $row->afl_id, |
| 316 | 'actions' => $currentReversibleActions, |
| 317 | 'vars' => $vars, |
| 318 | 'spec' => new ActionSpecifier( |
| 319 | $row->afl_action, |
| 320 | new TitleValue( (int)$row->afl_namespace, $row->afl_title ), |
| 321 | $this->userFactory->newFromAnyId( (int)$row->afl_user, $row->afl_user_text ), |
| 322 | $row->afl_ip, |
| 323 | $accountName |
| 324 | ), |
| 325 | 'timestamp' => $row->afl_timestamp |
| 326 | ]; |
| 327 | } |
| 328 | } |
| 329 | |
| 330 | return $results; |
| 331 | } |
| 332 | |
| 333 | /** |
| 334 | * Loads parameters from request |
| 335 | */ |
| 336 | public function loadParameters() { |
| 337 | $request = $this->getRequest(); |
| 338 | |
| 339 | $this->filter = (int)$this->mParams[1]; |
| 340 | $this->periodStart = strtotime( $request->getText( 'wpPeriodStart' ) ) ?: null; |
| 341 | $this->periodEnd = strtotime( $request->getText( 'wpPeriodEnd' ) ) ?: null; |
| 342 | $this->reason = $request->getVal( 'wpReason' ); |
| 343 | } |
| 344 | |
| 345 | /** |
| 346 | * @return bool |
| 347 | */ |
| 348 | public function attemptRevert() { |
| 349 | $filter = $this->filter; |
| 350 | $token = $this->getRequest()->getVal( 'wpEditToken' ); |
| 351 | if ( !$this->getUser()->matchEditToken( $token, "abusefilter-revert-$filter" ) ) { |
| 352 | return false; |
| 353 | } |
| 354 | |
| 355 | $results = $this->doLookup(); |
| 356 | foreach ( $results as $result ) { |
| 357 | foreach ( $result['actions'] as $action ) { |
| 358 | $this->revertAction( $action, $result ); |
| 359 | } |
| 360 | } |
| 361 | $this->getOutput()->addHTML( Html::successBox( |
| 362 | $this->msg( |
| 363 | 'abusefilter-revert-success', |
| 364 | $filter, |
| 365 | $this->getLanguage()->formatNum( $filter ) |
| 366 | )->parse() |
| 367 | ) ); |
| 368 | |
| 369 | return true; |
| 370 | } |
| 371 | |
| 372 | /** |
| 373 | * Helper method for typing |
| 374 | * @param string $action |
| 375 | * @param array $result |
| 376 | * @return ReversibleConsequence |
| 377 | */ |
| 378 | private function getConsequence( string $action, array $result ): ReversibleConsequence { |
| 379 | $params = new Parameters( |
| 380 | $this->filterLookup->getFilter( $this->filter, false ), |
| 381 | false, |
| 382 | $result['spec'] |
| 383 | ); |
| 384 | |
| 385 | switch ( $action ) { |
| 386 | case 'block': |
| 387 | return $this->consequencesFactory->newBlock( $params, '', false ); |
| 388 | case 'blockautopromote': |
| 389 | $duration = $this->getConfig()->get( 'AbuseFilterBlockAutopromoteDuration' ) * 86400; |
| 390 | return $this->consequencesFactory->newBlockAutopromote( $params, $duration ); |
| 391 | case 'degroup': |
| 392 | return $this->consequencesFactory->newDegroup( $params, $result['vars'] ); |
| 393 | default: |
| 394 | throw new UnexpectedValueException( "Invalid action $action" ); |
| 395 | } |
| 396 | } |
| 397 | |
| 398 | /** |
| 399 | * @param string $action |
| 400 | * @param array $result |
| 401 | * @return bool |
| 402 | */ |
| 403 | public function revertAction( string $action, array $result ): bool { |
| 404 | $message = $this->msg( |
| 405 | 'abusefilter-revert-reason', $this->filter, $this->reason |
| 406 | )->inContentLanguage()->text(); |
| 407 | |
| 408 | $consequence = $this->getConsequence( $action, $result ); |
| 409 | return $consequence->revert( $this->getUser(), $message ); |
| 410 | } |
| 411 | } |