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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\AbuseFilter; |
| 4 | |
| 5 | use MediaWiki\Auth\AbstractPreAuthenticationProvider; |
| 6 | use MediaWiki\Auth\AuthenticationRequest; |
| 7 | use MediaWiki\Extension\AbuseFilter\VariableGenerator\VariableGeneratorFactory; |
| 8 | use MediaWiki\SpecialPage\SpecialPage; |
| 9 | use MediaWiki\User\User; |
| 10 | use MediaWiki\User\UserFactory; |
| 11 | use StatusValue; |
| 12 | use Wikimedia\Stats\IBufferingStatsdDataFactory; |
| 13 | |
| 14 | /** |
| 15 | * AuthenticationProvider used to filter account creations. This runs after normal preauth providers |
| 16 | * to keep the log cleaner. |
| 17 | */ |
| 18 | class AbuseFilterPreAuthenticationProvider extends AbstractPreAuthenticationProvider { |
| 19 | /** @var VariableGeneratorFactory */ |
| 20 | private $variableGeneratorFactory; |
| 21 | /** @var FilterRunnerFactory */ |
| 22 | private $filterRunnerFactory; |
| 23 | /** @var IBufferingStatsdDataFactory */ |
| 24 | private $statsd; |
| 25 | /** @var UserFactory */ |
| 26 | private $userFactory; |
| 27 | |
| 28 | /** |
| 29 | * @param VariableGeneratorFactory $variableGeneratorFactory |
| 30 | * @param FilterRunnerFactory $filterRunnerFactory |
| 31 | * @param IBufferingStatsdDataFactory $statsd |
| 32 | * @param UserFactory $userFactory |
| 33 | */ |
| 34 | public function __construct( |
| 35 | VariableGeneratorFactory $variableGeneratorFactory, |
| 36 | FilterRunnerFactory $filterRunnerFactory, |
| 37 | IBufferingStatsdDataFactory $statsd, |
| 38 | UserFactory $userFactory |
| 39 | ) { |
| 40 | $this->variableGeneratorFactory = $variableGeneratorFactory; |
| 41 | $this->filterRunnerFactory = $filterRunnerFactory; |
| 42 | $this->statsd = $statsd; |
| 43 | $this->userFactory = $userFactory; |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * @param User $user |
| 48 | * @param User $creator |
| 49 | * @param AuthenticationRequest[] $reqs |
| 50 | * @return StatusValue |
| 51 | */ |
| 52 | public function testForAccountCreation( $user, $creator, array $reqs ): StatusValue { |
| 53 | return $this->testUser( $user, $creator, false ); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * @param User $user |
| 58 | * @param bool|string $autocreate |
| 59 | * @param array $options |
| 60 | * @return StatusValue |
| 61 | */ |
| 62 | public function testUserForCreation( $user, $autocreate, array $options = [] ): StatusValue { |
| 63 | // if this is not an autocreation, testForAccountCreation already handled it |
| 64 | if ( $autocreate && !( $options['canAlwaysAutocreate'] ?? false ) ) { |
| 65 | // Make sure to use an anon as the creator, see T272244 |
| 66 | return $this->testUser( $user, $this->userFactory->newAnonymous(), true ); |
| 67 | } |
| 68 | return StatusValue::newGood(); |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * @param User $user The user being created or autocreated |
| 73 | * @param User $creator The user who caused $user to be created (can be anonymous) |
| 74 | * @param bool $autocreate Is this an autocreation? |
| 75 | * @return StatusValue |
| 76 | */ |
| 77 | private function testUser( $user, $creator, $autocreate ): StatusValue { |
| 78 | $startTime = microtime( true ); |
| 79 | if ( $user->getName() === wfMessage( 'abusefilter-blocker' )->inContentLanguage()->text() ) { |
| 80 | return StatusValue::newFatal( 'abusefilter-accountreserved' ); |
| 81 | } |
| 82 | |
| 83 | $title = SpecialPage::getTitleFor( 'Userlogin' ); |
| 84 | $builder = $this->variableGeneratorFactory->newRunGenerator( $creator, $title ); |
| 85 | $vars = $builder->getAccountCreationVars( $user, $autocreate ); |
| 86 | |
| 87 | // pass creator in explicitly to prevent recording the current user on autocreation - T135360 |
| 88 | $runner = $this->filterRunnerFactory->newRunner( $creator, $title, $vars, 'default' ); |
| 89 | $status = $runner->run(); |
| 90 | |
| 91 | $this->statsd->timing( 'timing.createaccountAbuseFilter', microtime( true ) - $startTime ); |
| 92 | |
| 93 | return $status->getStatusValue(); |
| 94 | } |
| 95 | } |