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<?php |
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/****************************************************************************** |
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* Wikipedia Account Creation Assistance tool * |
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* ACC Development Team. Please see team.json for a list of contributors. * |
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* * |
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* This is free and unencumbered software released into the public domain. * |
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* Please see LICENSE.md for the full licencing statement. * |
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******************************************************************************/ |
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namespace Waca\Security\CredentialProviders; |
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use Waca\DataObjects\Credential; |
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use Waca\DataObjects\User; |
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use Waca\PdoDatabase; |
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use Waca\SiteConfiguration; |
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abstract class CredentialProviderBase implements ICredentialProvider |
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{ |
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/** |
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* @var PdoDatabase |
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*/ |
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private $database; |
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/** |
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* @var SiteConfiguration |
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*/ |
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private $configuration; |
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/** @var string */ |
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private $type; |
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/** |
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* CredentialProviderBase constructor. |
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* |
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* @param PdoDatabase $database |
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* @param SiteConfiguration $configuration |
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* @param string $type |
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*/ |
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public function __construct(PdoDatabase $database, SiteConfiguration $configuration, $type) |
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{ |
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$this->database = $database; |
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$this->configuration = $configuration; |
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$this->type = $type; |
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} |
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/** |
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* @param int $userId |
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* |
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* @param bool $disabled |
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* |
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* @return Credential |
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*/ |
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protected function getCredentialData($userId, $disabled = false) |
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{ |
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$sql = 'SELECT * FROM credential WHERE type = :t AND user = :u'; |
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$parameters = array( |
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':u' => $userId, |
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':t' => $this->type |
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); |
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if ($disabled !== null) { |
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$sql .= ' AND disabled = :d'; |
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$parameters[':d'] = $disabled ? 1 : 0; |
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} |
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$statement = $this->database->prepare($sql); |
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$statement->execute($parameters); |
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/** @var Credential $obj */ |
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$obj = $statement->fetchObject(Credential::class); |
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if ($obj === false) { |
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return null; |
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} |
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$obj->setDatabase($this->database); |
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$statement->closeCursor(); |
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return $obj; |
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} |
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/** |
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* @return PdoDatabase |
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*/ |
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public function getDatabase() |
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{ |
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return $this->database; |
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} |
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/** |
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* @return SiteConfiguration |
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*/ |
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public function getConfiguration() |
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{ |
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return $this->configuration; |
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} |
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public function deleteCredential(User $user) |
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{ |
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// get this factor |
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$statement = $this->database->prepare('SELECT * FROM credential WHERE user = :user AND type = :type'); |
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$statement->execute(array(':user' => $user->getId(), ':type' => $this->type)); |
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/** @var Credential $credential */ |
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$credential = $statement->fetchObject(Credential::class); |
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$credential->setDatabase($this->database); |
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$statement->closeCursor(); |
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$stage = $credential->getFactor(); |
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$statement = $this->database->prepare('SELECT COUNT(*) FROM credential WHERE user = :user AND factor = :factor'); |
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$statement->execute(array(':user' => $user->getId(), ':factor' => $stage)); |
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$alternates = $statement->fetchColumn(); |
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$statement->closeCursor(); |
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if ($alternates <= 1) { |
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// decrement the factor for every stage above this |
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$sql = 'UPDATE credential SET factor = factor - 1 WHERE user = :user AND factor > :factor'; |
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$statement = $this->database->prepare($sql); |
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$statement->execute(array(':user' => $user->getId(), ':factor' => $stage)); |
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} |
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else { |
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// There are other auth factors at this point. Don't renumber the factors just yet. |
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} |
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// delete this credential. |
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$credential->delete(); |
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} |
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/** |
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* @param User $user |
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* |
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* @return Credential |
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*/ |
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protected function createNewCredential(User $user) |
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{ |
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$credential = new Credential(); |
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$credential->setDatabase($this->getDatabase()); |
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$credential->setUserId($user->getId()); |
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$credential->setType($this->type); |
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return $credential; |
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} |
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/** |
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* @param int $userId |
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* |
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* @return bool |
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*/ |
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public function userIsEnrolled($userId) |
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{ |
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$cred = $this->getCredentialData($userId); |
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return $cred !== null; |
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} |
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} |
enwikipedia-acc /
waca
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