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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\CheckUser\Maintenance; |
| 4 | |
| 5 | use ContentHandler; |
| 6 | use MailAddress; |
| 7 | use Maintenance; |
| 8 | use ManualLogEntry; |
| 9 | use MediaWiki\Auth\AuthenticationResponse; |
| 10 | use MediaWiki\Auth\AuthManager; |
| 11 | use MediaWiki\CheckUser\ClientHints\ClientHintsData; |
| 12 | use MediaWiki\CheckUser\Hooks as CheckUserHooks; |
| 13 | use MediaWiki\CheckUser\Services\UserAgentClientHintsManager; |
| 14 | use MediaWiki\MediaWikiServices; |
| 15 | use MediaWiki\Request\FauxRequest; |
| 16 | use MediaWiki\Title\Title; |
| 17 | use MediaWiki\User\User; |
| 18 | use MediaWiki\User\UserIdentity; |
| 19 | use MediaWiki\User\UserIdentityValue; |
| 20 | use MediaWiki\User\UserRigorOptions; |
| 21 | use RequestContext; |
| 22 | use Wikimedia\IPUtils; |
| 23 | use Wikimedia\Timestamp\ConvertibleTimestamp; |
| 24 | |
| 25 | $IP = getenv( 'MW_INSTALL_PATH' ); |
| 26 | if ( $IP === false ) { |
| 27 | $IP = __DIR__ . '/../../..'; |
| 28 | } |
| 29 | require_once "$IP/maintenance/Maintenance.php"; |
| 30 | |
| 31 | /** |
| 32 | * Populates the CheckUser tables with simulated data that can be useful for |
| 33 | * testing. |
| 34 | * |
| 35 | * WARNING: This should never be run on production wikis. This is intended only for |
| 36 | * local testing wikis where the DB can be cleared without issue. |
| 37 | */ |
| 38 | class PopulateCheckUserTablesWithSimulatedData extends Maintenance { |
| 39 | |
| 40 | private const VALID_LOG_EVENTS = [ |
| 41 | 'move' => [ 'move', 'move_redir' ], |
| 42 | 'delete' => [ 'delete', 'restore' ], |
| 43 | 'suppress' => [ 'delete' ], |
| 44 | 'merge' => [ 'merge' ] |
| 45 | ]; |
| 46 | |
| 47 | /** @var array<string,?ClientHintsData> */ |
| 48 | private array $userAgentsToClientHintsMap; |
| 49 | |
| 50 | private CheckUserHooks $hooks; |
| 51 | |
| 52 | private User $userToEmailAndSendPasswordResetsFor; |
| 53 | |
| 54 | private ?ClientHintsData $currentClientHintsData; |
| 55 | |
| 56 | private array $ipv4Ranges; |
| 57 | |
| 58 | private array $ipv6Ranges; |
| 59 | |
| 60 | private array $ipsToUse; |
| 61 | |
| 62 | private FauxRequest $mainRequest; |
| 63 | |
| 64 | public function __construct() { |
| 65 | parent::__construct(); |
| 66 | $this->addDescription( 'If you use --num-temp with this script, set ' . |
| 67 | '$wgTempAccountNameAcquisitionThrottle to null to avoid rate limiting on ' . |
| 68 | 'temporary account name acquisitions' ); |
| 69 | $this->addOption( |
| 70 | 'num-users', |
| 71 | 'How many users should be created and used for the simulated actions. ' . |
| 72 | 'The number of actions performed will roughly be split equally between the users. Default is 10.' |
| 73 | ); |
| 74 | $this->addOption( |
| 75 | 'num-anon', |
| 76 | 'How many IPs should be used for the simulated actions. ' . |
| 77 | 'The number of actions performed will roughly be split equally between the IPs. Default is 5.' |
| 78 | ); |
| 79 | $this->addOption( |
| 80 | 'num-temp', |
| 81 | 'How many temporary accounts should be used for the simulated actions. ' . |
| 82 | 'The number of actions performed will roughly be split equally between the temporary accounts.' . |
| 83 | 'This is ignored if temporary account creation is disabled. If not ignored, the default is 10.' |
| 84 | ); |
| 85 | $this->addOption( |
| 86 | 'num-used-ips', |
| 87 | 'How many IPs to select from the ranges in ranges-for-ips. Must not be smaller than num-anon. ' . |
| 88 | 'These IPs will be used for anon edits, temporary account and user actions. These will also be used ' . |
| 89 | 'in the XFF header (if set) for actions. Default is 5.' |
| 90 | ); |
| 91 | $this->addOption( |
| 92 | 'ranges-for-ips', |
| 93 | 'What ranges should the IPs be selected from. Default is one IPv4 and IPv6 range inside ' . |
| 94 | 'ranges defined as internal.', |
| 95 | false, false, false, true |
| 96 | ); |
| 97 | $this->addArg( |
| 98 | 'count', |
| 99 | 'How many items to be added to the CheckUser tables. Default is 1,000 items.', |
| 100 | false |
| 101 | ); |
| 102 | |
| 103 | $this->requireExtension( 'CheckUser' ); |
| 104 | } |
| 105 | |
| 106 | public function execute() { |
| 107 | // Check development mode is enabled |
| 108 | if ( $this->getConfig()->get( 'CheckUserDeveloperMode' ) !== true ) { |
| 109 | $this->fatalError( |
| 110 | "CheckUser development mode must be enabled to use this script. To do this, set " . |
| 111 | "wgCheckUserDeveloperMode to true. Only do this on localhost testing wikis." |
| 112 | ); |
| 113 | } |
| 114 | // Set-up and argument parsing. |
| 115 | $count = $this->ensureArgumentIsInt( |
| 116 | $this->getArg( 0, 1000 ), |
| 117 | 'Count' |
| 118 | ); |
| 119 | $numUsers = $this->ensureArgumentIsInt( |
| 120 | $this->getOption( 'num-users', 10 ), |
| 121 | 'Number of registered users' |
| 122 | ); |
| 123 | $numAnon = $this->ensureArgumentIsInt( |
| 124 | $this->getOption( 'num-anon', 5 ), |
| 125 | 'Number of anonymous users' |
| 126 | ); |
| 127 | $numTemp = $this->ensureArgumentIsInt( |
| 128 | $this->getOption( 'num-temp', 10 ), |
| 129 | 'Number of temporary users' |
| 130 | ); |
| 131 | $numIpsToUse = $this->ensureArgumentIsInt( |
| 132 | $this->getOption( 'num-used-ips', 5 ), |
| 133 | 'Number of IPs to use' |
| 134 | ); |
| 135 | $ipRanges = $this->getOption( 'ranges-for-ips', [ '127.0.0.1/24', 'fd12:3456:789a:1::/40' ] ); |
| 136 | |
| 137 | foreach ( $ipRanges as $range ) { |
| 138 | if ( !IPUtils::isValidRange( $range ) ) { |
| 139 | $this->fatalError( 'range-for-ips option must be a valid IP address range.' ); |
| 140 | } |
| 141 | if ( IPUtils::isIPv4( $range ) ) { |
| 142 | $this->ipv4Ranges[] = $range; |
| 143 | } else { |
| 144 | $this->ipv6Ranges[] = $range; |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | if ( $numAnon > $numIpsToUse ) { |
| 149 | $this->fatalError( 'Number of anon users making edits should not exceed the number of IPs used.' ); |
| 150 | } |
| 151 | |
| 152 | if ( !$this->getServiceContainer()->getTempUserConfig()->isEnabled() ) { |
| 153 | // Only add temporary users if temporary user creation is enabled. |
| 154 | $numTemp = 0; |
| 155 | } |
| 156 | |
| 157 | $actionsPerActor = intval( floor( $count / array_sum( [ $numUsers, $numAnon, $numTemp ] ) ) ); |
| 158 | $remainderActions = $count % array_sum( [ $numUsers, $numAnon, $numTemp ] ); |
| 159 | |
| 160 | if ( $actionsPerActor < 5 ) { |
| 161 | $minCount = array_sum( [ $numUsers, $numAnon, $numTemp ] ) * 5; |
| 162 | $this->fatalError( |
| 163 | "Minimum actions per actor must be 5. Increase the 'count' argument to at least {$minCount}." |
| 164 | ); |
| 165 | } |
| 166 | |
| 167 | // Start code that can assume it is safe to perform un-reversible testing actions. |
| 168 | $this->hooks = new CheckUserHooks(); |
| 169 | $services = MediaWikiServices::getInstance(); |
| 170 | $userForEmails = $this->createRegisteredUser(); |
| 171 | if ( $userForEmails === null ) { |
| 172 | $this->fatalError( |
| 173 | "Unable to create a new user to be used as the target for emails and password resets.\n" |
| 174 | ); |
| 175 | } |
| 176 | $this->userToEmailAndSendPasswordResetsFor = $userForEmails; |
| 177 | $this->mainRequest = new FauxRequest(); |
| 178 | RequestContext::getMain()->setRequest( $this->mainRequest ); |
| 179 | $this->initUserAgentAndClientHintsCombos(); |
| 180 | |
| 181 | // Get $numIpsToUse IPs. |
| 182 | $this->ipsToUse = []; |
| 183 | // First try to get one random IPv4 in the allowed IPv4 range(s). |
| 184 | if ( count( $this->ipv4Ranges ) ) { |
| 185 | $this->ipsToUse[] = $this->generateNewIPv4(); |
| 186 | $numIpsToUse--; |
| 187 | } |
| 188 | // Next try to get one random IPv6 in the allowed IPv6 range(s). |
| 189 | if ( count( $this->ipv6Ranges ) && $numIpsToUse > 0 ) { |
| 190 | $this->ipsToUse[] = $this->generateNewIPv6(); |
| 191 | $numIpsToUse--; |
| 192 | } |
| 193 | // If IPs can still be chosen then randomly generate |
| 194 | // them from either IPv4 or IPv6 ranges. |
| 195 | if ( $numIpsToUse > 0 ) { |
| 196 | foreach ( range( 0, $numIpsToUse ) as $ignored ) { |
| 197 | $this->ipsToUse[] = $this->generateNewIp(); |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | // Get the first IP, user agent and client hints data |
| 202 | $this->getNewIp(); |
| 203 | $this->getNewUserAgentAndAssociatedClientHints(); |
| 204 | |
| 205 | // First populate using users |
| 206 | for ( $i = 0; $i < $numUsers; $i++ ) { |
| 207 | $actionsLeft = $actionsPerActor; |
| 208 | $this->applyRemainderAction( $actionsLeft, $remainderActions ); |
| 209 | |
| 210 | // Find a username that is not already being used |
| 211 | $this->setNewRandomFakeTime(); |
| 212 | $lowerLimit = time() - ConvertibleTimestamp::time(); |
| 213 | $user = $this->createRegisteredUser(); |
| 214 | // Creating an account causes a log event. |
| 215 | $actionsLeft--; |
| 216 | if ( $user === null ) { |
| 217 | $this->output( "Unable to create new user. Skipping this actor.\n" ); |
| 218 | continue; |
| 219 | } |
| 220 | $this->output( "Processing user with username {$user->getName()}.\n" ); |
| 221 | |
| 222 | while ( $actionsLeft > 0 ) { |
| 223 | if ( $this->getRandomFloat() < 0.3 ) { |
| 224 | // Assign a new IP to the main request 30% of the time. |
| 225 | $this->getNewIp(); |
| 226 | } |
| 227 | |
| 228 | $actionsLeft -= $this->performInsertBatch( $user, $actionsLeft, $lowerLimit ); |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | // Secondly populate using temporary accounts |
| 233 | for ( $i = 0; $i < $numTemp; $i++ ) { |
| 234 | $actionsLeft = $actionsPerActor; |
| 235 | $this->applyRemainderAction( $actionsLeft, $remainderActions ); |
| 236 | |
| 237 | $this->setNewRandomFakeTime(); |
| 238 | $lowerLimit = time() - ConvertibleTimestamp::time(); |
| 239 | $user = $services->getTempUserCreator()->create( |
| 240 | null, $this->mainRequest |
| 241 | )->getUser(); |
| 242 | // Creating a temporary user creates a log event. |
| 243 | $actionsLeft--; |
| 244 | $this->output( "Processing temporary user with username {$user->getName()}.\n" ); |
| 245 | |
| 246 | while ( $actionsLeft > 0 ) { |
| 247 | if ( $this->getRandomFloat() < 0.3 ) { |
| 248 | // Assign a new IP to the main request 30% of the time. |
| 249 | $this->getNewIp(); |
| 250 | } |
| 251 | |
| 252 | $actionsLeft -= $this->performInsertBatch( $user, $actionsLeft, $lowerLimit ); |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | // Lastly populate using IPs |
| 257 | if ( count( $this->ipsToUse ) < 3 ) { |
| 258 | // If less than 3 IPs to choose from, keep the original ordering. |
| 259 | $ipsInOrder = $this->ipsToUse; |
| 260 | } else { |
| 261 | // If three or more IPs to choose from, pick the first two and a random |
| 262 | // selection of the other IPs. This ensures at least one IPv4 and IPv6 |
| 263 | // address is used if allowed. |
| 264 | $ipsInOrder = array_slice( $this->ipsToUse, 2 ); |
| 265 | shuffle( $ipsInOrder ); |
| 266 | array_unshift( $ipsInOrder, $this->ipsToUse[0], $this->ipsToUse[1] ); |
| 267 | } |
| 268 | for ( $i = 0; $i < $numAnon; $i++ ) { |
| 269 | $actionsLeft = $actionsPerActor; |
| 270 | $this->applyRemainderAction( $actionsLeft, $remainderActions ); |
| 271 | |
| 272 | $user = UserIdentityValue::newAnonymous( IPUtils::prettifyIP( $ipsInOrder[$i] ) ); |
| 273 | // Assign the request IP as the anon user being used for this loop. |
| 274 | RequestContext::getMain()->getRequest()->setIP( $user->getName() ); |
| 275 | $this->output( "Processing anon user with IP {$user->getName()}.\n" ); |
| 276 | |
| 277 | while ( $actionsLeft > 0 ) { |
| 278 | $this->randomlyAssignXFFHeader( $user->getName() ); |
| 279 | $actionsLeft -= $this->performInsertBatch( $user, $actionsLeft ); |
| 280 | } |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | /** |
| 285 | * Ensure an argument provided via the command line is an integer. |
| 286 | * If it is not, then exit the script with a fatal error message. |
| 287 | * |
| 288 | * @param mixed $argument The argument from the command line (usually in string form) |
| 289 | * @param string $name The name of the argument used if the argument is not an integer |
| 290 | * in the fatal error message. |
| 291 | * @return int The argument as an integer (exit is called if the argument was invalid). |
| 292 | */ |
| 293 | private function ensureArgumentIsInt( $argument, string $name ): int { |
| 294 | if ( ( !$argument || !intval( $argument ) ) && $argument !== '0' ) { |
| 295 | $this->fatalError( "$name must be an integer" ); |
| 296 | } |
| 297 | return intval( $argument ); |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * Reduce the remainder argument by 1 and increase the actions left |
| 302 | * argument by 1, as long as the remainder argument is above 0. |
| 303 | * |
| 304 | * @param int &$actionsLeft The actions left for an actor |
| 305 | * @param int &$remainderActions The remainder of the floor division |
| 306 | * @return void |
| 307 | */ |
| 308 | private function applyRemainderAction( int &$actionsLeft, int &$remainderActions ) { |
| 309 | if ( $remainderActions > 0 ) { |
| 310 | $actionsLeft += 1; |
| 311 | $remainderActions -= 1; |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | /** |
| 316 | * Create a user on the wiki with a username |
| 317 | * prefixed with CheckUserSimulated and then |
| 318 | * a random string of hexadecimal characters. |
| 319 | * |
| 320 | * @return ?User A user that has just been created or null if this failed. |
| 321 | */ |
| 322 | private function createRegisteredUser(): ?User { |
| 323 | $services = MediaWikiServices::getInstance(); |
| 324 | // Find a username that doesn't exist. |
| 325 | $attemptsMade = 0; |
| 326 | do { |
| 327 | $user = $services->getUserFactory()->newFromName( |
| 328 | $this->getPrefix() . wfRandomString(), UserRigorOptions::RIGOR_CREATABLE |
| 329 | ); |
| 330 | if ( $attemptsMade > 100 ) { |
| 331 | return null; |
| 332 | } |
| 333 | $attemptsMade++; |
| 334 | } while ( $user === null || $user->isRegistered() ); |
| 335 | '@phan-var User $user'; |
| 336 | // Create an account using this username |
| 337 | $services->getAuthManager()->autoCreateUser( |
| 338 | $user, |
| 339 | AuthManager::AUTOCREATE_SOURCE_MAINT, |
| 340 | false |
| 341 | ); |
| 342 | return $user; |
| 343 | } |
| 344 | |
| 345 | /** |
| 346 | * Calls wfRandom and returns the value. |
| 347 | * |
| 348 | * Called by other code in this class so that tests |
| 349 | * can mock the return value. |
| 350 | * |
| 351 | * @return float A float in the range [0, 1] |
| 352 | */ |
| 353 | protected function getRandomFloat(): float { |
| 354 | return floatval( wfRandom() ); |
| 355 | } |
| 356 | |
| 357 | /** |
| 358 | * Calls mt_rand and returns the value. |
| 359 | * |
| 360 | * Called by code in this class so that tests |
| 361 | * can mock the return value to test behaviour |
| 362 | * that is determined randomly using mt_rand. |
| 363 | * |
| 364 | * @param int $min See mt_rand documentation |
| 365 | * @param int $max See mt_rand documentation |
| 366 | * @return int A random integer, see mt_rand documentation for more details. |
| 367 | */ |
| 368 | protected function mtRand( $min, $max ): int { |
| 369 | return mt_rand( $min, $max ); |
| 370 | } |
| 371 | |
| 372 | /** |
| 373 | * This method 30% of the time will apply a XFF header to the request |
| 374 | * and in other cases will clear any existing XFF header. |
| 375 | * |
| 376 | * @todo Make the XFF IPs make a bit more sense than using random IPs and/or |
| 377 | * make some of the XFF strings trusted. |
| 378 | * |
| 379 | * @param string $currentIp The current IP address of the request that will not |
| 380 | * be used in the XFF header. |
| 381 | */ |
| 382 | private function randomlyAssignXFFHeader( string $currentIp ): void { |
| 383 | if ( $this->getRandomFloat() < 0.3 ) { |
| 384 | $xffIp = $this->returnRandomIpExceptExcluded( [ $currentIp ] ); |
| 385 | if ( !$xffIp ) { |
| 386 | $xffValue = false; |
| 387 | } else { |
| 388 | $xffValue = IPUtils::prettifyIP( $xffIp ); |
| 389 | if ( $this->getRandomFloat() < 0.7 ) { |
| 390 | $xffIp = $this->returnRandomIpExceptExcluded( [ $currentIp, $xffIp ] ); |
| 391 | if ( $xffIp ) { |
| 392 | $xffValue = $xffValue . ', ' . IPUtils::prettifyIP( $xffIp ); |
| 393 | } |
| 394 | } |
| 395 | } |
| 396 | } else { |
| 397 | $xffValue = false; |
| 398 | } |
| 399 | $this->mainRequest->setHeaders( [ 'X-Forwarded-For' => $xffValue ] ); |
| 400 | } |
| 401 | |
| 402 | /** |
| 403 | * Return a random IP address from the list of IPs chosen |
| 404 | * in the property self::ipsToUse excluding those provided |
| 405 | * in the arguments. |
| 406 | * |
| 407 | * @param array $ipsExcluded The IPs to exclude from the random selection |
| 408 | * @return string|null A random IP or null if no IPs are left after the exclusion step. |
| 409 | */ |
| 410 | private function returnRandomIpExceptExcluded( array $ipsExcluded ): ?string { |
| 411 | $ipsToChoose = array_flip( array_filter( |
| 412 | $this->ipsToUse, |
| 413 | static function ( $item ) use ( $ipsExcluded ) { |
| 414 | return !in_array( $item, $ipsExcluded ); |
| 415 | } |
| 416 | ) ); |
| 417 | if ( count( $ipsToChoose ) ) { |
| 418 | return array_rand( $ipsToChoose ); |
| 419 | } |
| 420 | return null; |
| 421 | } |
| 422 | |
| 423 | /** |
| 424 | * Randomly pick either an IPv4 or IPv6 address |
| 425 | * from the list of IPs that were already chosen randomly. |
| 426 | * Also assign the IP as the IP used in the main request. |
| 427 | * |
| 428 | * @return string The IP that was chosen |
| 429 | */ |
| 430 | private function getNewIp(): string { |
| 431 | $ip = array_rand( array_flip( $this->ipsToUse ) ); |
| 432 | $this->randomlyAssignXFFHeader( $ip ); |
| 433 | RequestContext::getMain()->getRequest()->setIP( $ip ); |
| 434 | return $ip; |
| 435 | } |
| 436 | |
| 437 | /** |
| 438 | * Generate a randomly chosen IPv4 or IPv6 |
| 439 | * address that sits within the allowed |
| 440 | * ranges. A IPv4 address is returned 50% |
| 441 | * of the time on average. |
| 442 | * |
| 443 | * @return string |
| 444 | */ |
| 445 | private function generateNewIp(): string { |
| 446 | if ( $this->getRandomFloat() < 0.5 ) { |
| 447 | return $this->generateNewIPv4(); |
| 448 | } else { |
| 449 | return $this->generateNewIPv6(); |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | /** |
| 454 | * Randomly pick a new IPv4 address that comes from |
| 455 | * one of the defined ranges. |
| 456 | * |
| 457 | * @return string The IP that was chosen |
| 458 | */ |
| 459 | private function generateNewIPv4(): string { |
| 460 | [ $start, $end ] = IPUtils::parseRange( array_rand( array_flip( $this->ipv4Ranges ) ) ); |
| 461 | $start = ip2long( IPUtils::formatHex( $start ) ); |
| 462 | $end = ip2long( IPUtils::formatHex( $end ) ); |
| 463 | $ipAsLong = $this->mtRand( $start, $end ); |
| 464 | $ip = long2ip( $ipAsLong ); |
| 465 | return $ip; |
| 466 | } |
| 467 | |
| 468 | /** |
| 469 | * Randomly pick a new IPv6 address that comes |
| 470 | * from one of the defined IPv6 ranges. |
| 471 | * |
| 472 | * @return string The IP that was chosen |
| 473 | */ |
| 474 | private function generateNewIPv6(): string { |
| 475 | [ $start, $end ] = IPUtils::parseRange( array_rand( array_flip( $this->ipv6Ranges ) ) ); |
| 476 | $ip = ''; |
| 477 | $seenDifference = false; |
| 478 | $lastOnEdgeOfRange = false; |
| 479 | for ( $i = 0; $i < strlen( $start ); $i++ ) { |
| 480 | if ( !$seenDifference && $start[$i] === $end[$i] ) { |
| 481 | // Same character in both end and start of range |
| 482 | // therefore the randomly selected IPv6 must have |
| 483 | // this character |
| 484 | $ip .= $start[$i]; |
| 485 | } elseif ( !$seenDifference ) { |
| 486 | // Not the same character, but this is the first difference |
| 487 | // seen in the characters between $start and $end so far. |
| 488 | // |
| 489 | // Choose a random hex character between the hex characters in |
| 490 | // $start and $end. |
| 491 | $startAtiAsDec = hexdec( $start[$i] ); |
| 492 | $endAtiAsDec = hexdec( $end[$i] ); |
| 493 | $newHexCharacter = dechex( $this->mtRand( $startAtiAsDec, $endAtiAsDec ) ); |
| 494 | $ip .= $newHexCharacter; |
| 495 | $seenDifference = true; |
| 496 | // If the randomly selected hex character is the same as the |
| 497 | // start of the end character, then the next hex character |
| 498 | // must be greater than or less than respectively than |
| 499 | // the character at $i. |
| 500 | if ( $newHexCharacter == $start[$i] ) { |
| 501 | $lastOnEdgeOfRange = 'start'; |
| 502 | } elseif ( $newHexCharacter == $end[$i] ) { |
| 503 | $lastOnEdgeOfRange = 'end'; |
| 504 | } |
| 505 | } elseif ( $lastOnEdgeOfRange === 'start' ) { |
| 506 | // Ensure the random selection never exceeds the value |
| 507 | // at $start[$i]. This is to prevent the IP being outside the range. |
| 508 | $startAtiAsDec = hexdec( $start[$i] ); |
| 509 | $newHexCharacter = dechex( $this->mtRand( $startAtiAsDec, 15 ) ); |
| 510 | $ip .= $newHexCharacter; |
| 511 | if ( $newHexCharacter !== $start[$i] ) { |
| 512 | $lastOnEdgeOfRange = false; |
| 513 | } |
| 514 | } elseif ( $lastOnEdgeOfRange === 'end' ) { |
| 515 | // Ensure the random selection never exceeds the value |
| 516 | // at $end[$i]. This is to prevent the IP being outside the range. |
| 517 | $endAtiAsDec = hexdec( $end[$i] ); |
| 518 | $newHexCharacter = dechex( $this->mtRand( 0, $endAtiAsDec ) ); |
| 519 | $ip .= $newHexCharacter; |
| 520 | if ( $newHexCharacter !== $end[$i] ) { |
| 521 | $lastOnEdgeOfRange = false; |
| 522 | } |
| 523 | } else { |
| 524 | // Randomly choose any hex character. |
| 525 | $ip .= dechex( $this->mtRand( 0, 15 ) ); |
| 526 | } |
| 527 | } |
| 528 | $ip = IPUtils::formatHex( $ip ); |
| 529 | return $ip; |
| 530 | } |
| 531 | |
| 532 | /** |
| 533 | * This method randomly chooses a User-Agent header string, assigns that |
| 534 | * to the request and then applies Client Hints headers if the browser |
| 535 | * that uses the selected User-Agent supports Client Hints. |
| 536 | * |
| 537 | * @return void |
| 538 | */ |
| 539 | private function getNewUserAgentAndAssociatedClientHints(): void { |
| 540 | $userAgent = array_rand( $this->userAgentsToClientHintsMap ); |
| 541 | $this->mainRequest->setHeader( 'User-Agent', $userAgent ); |
| 542 | /** @var ?ClientHintsData $clientHintsData */ |
| 543 | $clientHintsData = $this->userAgentsToClientHintsMap[$userAgent]; |
| 544 | // Unset any existing Client Hints data. |
| 545 | $clientHintHeadersToUnset = array_filter( |
| 546 | array_keys( $this->mainRequest->getAllHeaders() ), |
| 547 | static fn ( $headerName ) => str_starts_with( $headerName, 'SEC-CH-UA' ) |
| 548 | ); |
| 549 | foreach ( $clientHintHeadersToUnset as $clientHintHeader ) { |
| 550 | $this->mainRequest->setHeaders( [ $clientHintHeader => false ] ); |
| 551 | } |
| 552 | if ( $clientHintsData !== null ) { |
| 553 | // Set the Client Hints headers in the faux request. |
| 554 | $clientHintHeadersToSet = array_filter( array_keys( |
| 555 | $this->getConfig()->get( 'CheckUserClientHintsHeaders' ) |
| 556 | ) ); |
| 557 | foreach ( $clientHintHeadersToSet as $clientHintHeader ) { |
| 558 | $propertyName = ClientHintsData::HEADER_TO_CLIENT_HINTS_DATA_PROPERTY_NAME[$clientHintHeader]; |
| 559 | $this->mainRequest->setHeader( |
| 560 | $clientHintHeader, $clientHintsData->jsonSerialize()[$propertyName] |
| 561 | ); |
| 562 | } |
| 563 | } |
| 564 | $this->currentClientHintsData = $clientHintsData; |
| 565 | } |
| 566 | |
| 567 | /** |
| 568 | * Perform a insert batch for a given actor. The inserts will stop and the method |
| 569 | * will return early if the actions performed reaches $actionsLeft. |
| 570 | * |
| 571 | * This method inserts edits by actually performing the edit. It uses ManualLogEntry |
| 572 | * to create log entries that are visible in Special:Log. Other log events, such as |
| 573 | * logging in, which are not shown in Special:Log are created by calling the |
| 574 | * specified hook handler. |
| 575 | * |
| 576 | * @param UserIdentity $actor The user/IP/temporary account that will perform these actions |
| 577 | * @param int &$actionsLeft Must be greater than 0. Represents the number of actions left. |
| 578 | * @param ?int $lowerLimit The furthest ago the random fake time can be from the current time in seconds. |
| 579 | * @return int The actions actually performed in this batch. |
| 580 | */ |
| 581 | private function performInsertBatch( UserIdentity $actor, int &$actionsLeft, ?int $lowerLimit = null ): int { |
| 582 | $this->setNewRandomFakeTime( $lowerLimit ); |
| 583 | if ( $this->getRandomFloat() < 0.3 ) { |
| 584 | // Assign a new user agent and client hints combo 30% of the time |
| 585 | $this->getNewUserAgentAndAssociatedClientHints(); |
| 586 | } |
| 587 | $services = MediaWikiServices::getInstance(); |
| 588 | /** @var UserAgentClientHintsManager $userAgentClientHintsManager */ |
| 589 | $userAgentClientHintsManager = $services->getService( 'UserAgentClientHintsManager' ); |
| 590 | $actorAsUserObject = $services->getUserFactory()->newFromUserIdentity( $actor ); |
| 591 | $actionsPerformed = 0; |
| 592 | // Simulate a failed login 10% of the time. |
| 593 | if ( $actor->isRegistered() && $this->getRandomFloat() < 0.1 ) { |
| 594 | $failReasons = []; |
| 595 | // Simulate good password 30% of the time. |
| 596 | if ( $this->getRandomFloat() < 0.3 ) { |
| 597 | $failReasons[] = "good password"; |
| 598 | // The phrase "locked" comes from the CentralAuth extension and indicates that |
| 599 | // the account login was made on an account that was locked but the request |
| 600 | // otherwise used the correct password. |
| 601 | $failReasons[] = "locked"; |
| 602 | } else { |
| 603 | $failReasons[] = "bad password"; |
| 604 | } |
| 605 | $this->hooks->onAuthManagerLoginAuthenticateAudit( |
| 606 | AuthenticationResponse::newFail( wfMessage( 'test' ), $failReasons ), |
| 607 | $actorAsUserObject, |
| 608 | $actor->getName(), |
| 609 | [] |
| 610 | ); |
| 611 | if ( !$this->incrementAndCheck( $actionsPerformed, $actionsLeft ) ) { |
| 612 | return $actionsPerformed; |
| 613 | } |
| 614 | } |
| 615 | if ( $actor->isRegistered() ) { |
| 616 | // Simulate a login. |
| 617 | $this->hooks->onAuthManagerLoginAuthenticateAudit( |
| 618 | AuthenticationResponse::newPass( $actor->getName() ), |
| 619 | $actorAsUserObject, |
| 620 | $actor->getName(), |
| 621 | [] |
| 622 | ); |
| 623 | if ( !$this->incrementAndCheck( $actionsPerformed, $actionsLeft ) ) { |
| 624 | return $actionsPerformed; |
| 625 | } |
| 626 | } |
| 627 | // Perform a random number of edits, capped at 3. |
| 628 | $editsToPerform = intval( $this->getRandomFloat() * 3 ); |
| 629 | if ( !$actor->isRegistered() ) { |
| 630 | // Always perform at least one edit if an anon user. |
| 631 | $editsToPerform += 1; |
| 632 | } |
| 633 | foreach ( range( 0, $editsToPerform ) as $ignored ) { |
| 634 | $title = null; |
| 635 | if ( $this->getRandomFloat() < 0.3 ) { |
| 636 | $title = Title::newFromText( $this->getPrefix() . 'Existing page' ); |
| 637 | } |
| 638 | $revisionId = $this->performEdit( $actorAsUserObject, $title ); |
| 639 | // Send a REST API request for the edit with Client Hints data, if there is data specified. |
| 640 | if ( $this->currentClientHintsData !== null && $revisionId !== null ) { |
| 641 | $userAgentClientHintsManager->insertClientHintValues( |
| 642 | ClientHintsData::newFromJsApi( $this->currentClientHintsData->jsonSerialize() ), |
| 643 | $revisionId, |
| 644 | 'revision' |
| 645 | ); |
| 646 | } |
| 647 | if ( !$this->incrementAndCheck( $actionsPerformed, $actionsLeft ) ) { |
| 648 | return $actionsPerformed; |
| 649 | } |
| 650 | } |
| 651 | // Simulate a random number of log actions, capped at 2. |
| 652 | $logsToPerform = intval( $this->getRandomFloat() * 2 ); |
| 653 | foreach ( range( 0, $logsToPerform ) as $ignored ) { |
| 654 | if ( $actor->isRegistered() ) { |
| 655 | $type = array_rand( self::VALID_LOG_EVENTS ); |
| 656 | } else { |
| 657 | $type = 'move'; |
| 658 | } |
| 659 | $action = array_rand( array_flip( self::VALID_LOG_EVENTS[$type] ) ); |
| 660 | $this->simulateLogAction( $type, $action, $actor ); |
| 661 | if ( !$this->incrementAndCheck( $actionsPerformed, $actionsLeft ) ) { |
| 662 | return $actionsPerformed; |
| 663 | } |
| 664 | } |
| 665 | // Simulate an email 10% of the time |
| 666 | if ( $actor->isRegistered() && $this->getRandomFloat() < 0.1 ) { |
| 667 | $from = MailAddress::newFromUser( $actorAsUserObject ); |
| 668 | $to = MailAddress::newFromUser( $this->userToEmailAndSendPasswordResetsFor ); |
| 669 | $subject = 'Test'; |
| 670 | $text = wfRandomString(); |
| 671 | $error = []; |
| 672 | $this->hooks->onEmailUser( $to, $from, $subject, $text, $error ); |
| 673 | if ( !$this->incrementAndCheck( $actionsPerformed, $actionsLeft ) ) { |
| 674 | return $actionsPerformed; |
| 675 | } |
| 676 | } |
| 677 | // Send password reset 10% of the time. |
| 678 | if ( $this->getRandomFloat() < 0.1 ) { |
| 679 | $this->hooks->onUser__mailPasswordInternal( |
| 680 | $actorAsUserObject, |
| 681 | RequestContext::getMain()->getRequest()->getIP(), |
| 682 | $this->userToEmailAndSendPasswordResetsFor |
| 683 | ); |
| 684 | if ( !$this->incrementAndCheck( $actionsPerformed, $actionsLeft ) ) { |
| 685 | return $actionsPerformed; |
| 686 | } |
| 687 | } |
| 688 | // Logout 50% of the time |
| 689 | if ( $actor->isRegistered() && $this->getRandomFloat() < 0.5 ) { |
| 690 | $html = ''; |
| 691 | $anonUser = $services->getUserFactory()->newFromName( |
| 692 | RequestContext::getMain()->getRequest()->getIP(), |
| 693 | UserRigorOptions::RIGOR_NONE |
| 694 | ); |
| 695 | if ( $anonUser ) { |
| 696 | $this->hooks->onUserLogoutComplete( $anonUser, $html, $actor->getName() ); |
| 697 | } |
| 698 | $this->incrementAndCheck( $actionsPerformed, $actionsLeft ); |
| 699 | } |
| 700 | return $actionsPerformed; |
| 701 | } |
| 702 | |
| 703 | /** |
| 704 | * Simulate a log action by creating an entry in Special:Log but not actually |
| 705 | * performing the action that is referenced in the log entry. |
| 706 | * |
| 707 | * Then tell CheckUser about this log entry, so that it is stored in the |
| 708 | * results list. |
| 709 | * |
| 710 | * @param string $type The log type |
| 711 | * @param string $action The log subtype (otherwise known as action) |
| 712 | * @param UserIdentity $actor The intended performer of this log action. |
| 713 | * @return void |
| 714 | */ |
| 715 | private function simulateLogAction( string $type, string $action, UserIdentity $actor ): void { |
| 716 | $logEntry = new ManualLogEntry( $type, $action ); |
| 717 | $logEntry->setPerformer( $actor ); |
| 718 | $logEntry->setTarget( Title::newFromText( $this->getPrefix() . 'Existing page' ) ); |
| 719 | $logEntry->setComment( wfRandomString() ); |
| 720 | if ( $type === 'move' ) { |
| 721 | $logEntry->setParameters( [ |
| 722 | '4::target' => $this->getPrefix() . wfRandomString(), |
| 723 | '5::noredir' => '0' |
| 724 | ] ); |
| 725 | } elseif ( $type === 'merge' ) { |
| 726 | $logEntry->setParameters( [ |
| 727 | '4::dest' => $this->getPrefix() . wfRandomString(), |
| 728 | '5::mergepoint' => $logEntry->getTimestamp() |
| 729 | ] ); |
| 730 | } elseif ( $type === 'delete' && $action === 'undelete' ) { |
| 731 | $logEntry->setParameters( [ |
| 732 | ':assoc:count' => [ |
| 733 | 'revisions' => 123, |
| 734 | 'files' => 1, |
| 735 | ], |
| 736 | ] ); |
| 737 | } |
| 738 | $id = $logEntry->insert(); |
| 739 | $this->hooks->onRecentChange_save( $logEntry->getRecentChange( $id ) ); |
| 740 | } |
| 741 | |
| 742 | /** |
| 743 | * Actually perform an edit using the given actor |
| 744 | * that is published to Special:RecentChanges (and |
| 745 | * then by extension Special:CheckUser) |
| 746 | * |
| 747 | * @param User $actor The user which is performing the edit |
| 748 | * @param Title|null $title The title of the page the edit will be performed on. Use null for a random title. |
| 749 | * @return int|null The revision ID of the edit if successful, otherwise null. |
| 750 | */ |
| 751 | private function performEdit( User $actor, ?Title $title ): ?int { |
| 752 | $tags = 0; |
| 753 | if ( $this->getRandomFloat() < 0.5 ) { |
| 754 | // Add minor edit flag 50% of the time. |
| 755 | $tags = EDIT_MINOR; |
| 756 | } |
| 757 | $title ??= Title::newFromText( $this->getPrefix() . wfRandomString() ); |
| 758 | if ( !$title ) { |
| 759 | return null; |
| 760 | } |
| 761 | $page = $this->getServiceContainer()->getWikiPageFactory()->newFromTitle( $title ); |
| 762 | $status = $page->doUserEditContent( |
| 763 | ContentHandler::makeContent( |
| 764 | wfRandomString(), |
| 765 | $title, |
| 766 | // Regardless of how the wiki is configure or what extensions are present, |
| 767 | // force this page to be a wikitext one. |
| 768 | CONTENT_MODEL_WIKITEXT |
| 769 | ), |
| 770 | $actor, |
| 771 | wfRandomString(), |
| 772 | $tags |
| 773 | ); |
| 774 | if ( !$status->isOK() ) { |
| 775 | return null; |
| 776 | } |
| 777 | return $status->getNewRevision()->getId(); |
| 778 | } |
| 779 | |
| 780 | /** |
| 781 | * Increment the actions performed counter, move the fake time forward |
| 782 | * by a random time no greater than 240 seconds and then check if more |
| 783 | * actions can be performed by checking against the second parameter |
| 784 | * |
| 785 | * @param int &$actionsPerformed The number of actions performed on this insert batch |
| 786 | * @param int $actionsLeft The number of actions left to perform for this actor |
| 787 | * @return bool Whether more actions can be performed |
| 788 | */ |
| 789 | private function incrementAndCheck( int &$actionsPerformed, int $actionsLeft ): bool { |
| 790 | $actionsPerformed++; |
| 791 | $this->moveFakeTimeForward(); |
| 792 | return $actionsPerformed < $actionsLeft; |
| 793 | } |
| 794 | |
| 795 | /** |
| 796 | * Set the time to a fake time between now and CUDMaxAge seconds ago. |
| 797 | * |
| 798 | * @param ?int $lowerLimit The maximum number of seconds ago this random timestamp can be. An hour |
| 799 | * is always added to this number. |
| 800 | * @return void |
| 801 | */ |
| 802 | private function setNewRandomFakeTime( ?int $lowerLimit = null ): void { |
| 803 | // Clear any fake time (to allow the ConvertibleTimestamp::time() call to use the real time). |
| 804 | ConvertibleTimestamp::setFakeTime( false ); |
| 805 | // Set the new fake time |
| 806 | // |
| 807 | // Ensure the new fake time is at least an hour ago from the actual time. |
| 808 | $newFakeTime = ConvertibleTimestamp::time() - 3600; |
| 809 | // Ensure the new fake time is appropriately chosen from any time period results can be in. |
| 810 | if ( $lowerLimit === null ) { |
| 811 | // Default is to ensure random time cannot be more than CUDMaxAge seconds ago minus 2 hours. |
| 812 | $lowerLimit = $this->getConfig()->get( 'CUDMaxAge' ) - ( 3600 * 2 ); |
| 813 | } |
| 814 | $newFakeTime -= intval( $this->getRandomFloat() * $lowerLimit ); |
| 815 | ConvertibleTimestamp::setFakeTime( $newFakeTime ); |
| 816 | } |
| 817 | |
| 818 | /** |
| 819 | * Move the fake time forward by a random number of seconds between 0 and 240 seconds. |
| 820 | * |
| 821 | * @return void |
| 822 | */ |
| 823 | private function moveFakeTimeForward(): void { |
| 824 | ConvertibleTimestamp::setFakeTime( |
| 825 | ConvertibleTimestamp::time() + intval( $this->getRandomFloat() * 239 ) + 1 |
| 826 | ); |
| 827 | } |
| 828 | |
| 829 | /** |
| 830 | * Initialise the User-Agent header and Client Hints combinations |
| 831 | * as the ClientHints objects cannot be created in a constant property. |
| 832 | * |
| 833 | * @return void |
| 834 | */ |
| 835 | private function initUserAgentAndClientHintsCombos(): void { |
| 836 | $this->userAgentsToClientHintsMap = [ |
| 837 | 'Mozilla/5.0 (iPhone13,2; U; CPU iPhone OS 14_0 like Mac OS X) AppleWebKit/602.1.50 ' . |
| 838 | '(KHTML, like Gecko) Version/10.0 Mobile/15E148 Safari/602.1' => |
| 839 | null, |
| 840 | 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/116.0' => |
| 841 | null, |
| 842 | ]; |
| 843 | $this->userAgentsToClientHintsMap[ |
| 844 | 'Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) ' . |
| 845 | 'Chrome/115.0.0.0 Mobile Safari/537.36' |
| 846 | ] = new ClientHintsData( |
| 847 | "", |
| 848 | "64", |
| 849 | [ |
| 850 | [ "brand" => "Not/A)Brand", "version" => "99" ], |
| 851 | [ "brand" => "Google Chrome", "version" => "115" ], |
| 852 | [ "brand" => "Chromium", "version" => "115" ], |
| 853 | ], |
| 854 | null, |
| 855 | [ |
| 856 | [ "brand" => "Not/A)Brand", "version" => "99.0.0.0" ], |
| 857 | [ "brand" => "Google Chrome", "version" => "115.0.5790.171" ], |
| 858 | [ "brand" => "Chromium", "version" => "115.0.5790.171" ], |
| 859 | ], |
| 860 | true, |
| 861 | "SM-G965U", |
| 862 | "Android", |
| 863 | "10.0.0", |
| 864 | '"Not/A)Brand";v="99", "Google Chrome";v="115", "Chromium";v="115"', |
| 865 | false |
| 866 | ); |
| 867 | $this->userAgentsToClientHintsMap[ |
| 868 | 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) ' . |
| 869 | 'Chrome/112.0.0.0 Safari/537.36 OPR/98.0.0.0' |
| 870 | ] = new ClientHintsData( |
| 871 | "x86", |
| 872 | "64", |
| 873 | [ |
| 874 | [ "brand" => "Chromium", "version" => "112" ], |
| 875 | [ "brand" => "Not_A Brand", "version" => "24" ], |
| 876 | [ "brand" => "Opera GX", "version" => "98" ], |
| 877 | ], |
| 878 | null, |
| 879 | [ |
| 880 | [ "brand" => "Chromium", "version" => "112.0.5615.165" ], |
| 881 | [ "brand" => "Not_A Brand", "version" => "24.0.0.0" ], |
| 882 | [ "brand" => "Opera GX", "version" => "98.0.4759.82" ], |
| 883 | ], |
| 884 | false, |
| 885 | "", |
| 886 | "Windows", |
| 887 | "15.0.0", |
| 888 | '"Chromium";v="112", "Not_A Brand";v="24", "Opera GX";v="98"', |
| 889 | false |
| 890 | ); |
| 891 | $this->userAgentsToClientHintsMap[ |
| 892 | 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) ' . |
| 893 | 'Chrome/115.0.0.0 Safari/537.36' |
| 894 | ] = new ClientHintsData( |
| 895 | "x86", |
| 896 | "64", |
| 897 | [ |
| 898 | [ "brand" => "Not/A)Brand", "version" => "99" ], |
| 899 | [ "brand" => "Google Chrome", "version" => "115" ], |
| 900 | [ "brand" => "Chromium", "version" => "115" ], |
| 901 | ], |
| 902 | null, |
| 903 | [ |
| 904 | [ "brand" => "Not/A)Brand", "version" => "99.0.0.0" ], |
| 905 | [ "brand" => "Google Chrome", "version" => "115.0.5790.171" ], |
| 906 | [ "brand" => "Chromium", "version" => "115.0.5790.171" ], |
| 907 | ], |
| 908 | false, |
| 909 | "", |
| 910 | "Windows", |
| 911 | "15.0.0", |
| 912 | '"Not/A)Brand";v="99", "Google Chrome";v="115", "Chromium";v="115"', |
| 913 | false |
| 914 | ); |
| 915 | $this->userAgentsToClientHintsMap[ |
| 916 | 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) ' . |
| 917 | 'Chrome/114.0.0.0 Safari/537.36' |
| 918 | ] = new ClientHintsData( |
| 919 | "x86", |
| 920 | null, |
| 921 | [ |
| 922 | [ "brand" => "Not/A)Brand", "version" => "99" ], |
| 923 | [ "brand" => "Google Chrome", "version" => "114" ], |
| 924 | [ "brand" => "Chromium", "version" => "114" ], |
| 925 | ], |
| 926 | null, |
| 927 | null, |
| 928 | false, |
| 929 | "", |
| 930 | "Windows", |
| 931 | null, |
| 932 | '"Not/A)Brand";v="99", "Google Chrome";v="115", "Chromium";v="115"', |
| 933 | null |
| 934 | ); |
| 935 | } |
| 936 | |
| 937 | private function getPrefix(): string { |
| 938 | return 'CheckUserSimulated-'; |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | $maintClass = PopulateCheckUserTablesWithSimulatedData::class; |
| 943 | require_once RUN_MAINTENANCE_IF_MAIN; |