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<?php |
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/** |
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* @author Christoph Wurst <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OCA\TwoFactorBackupCodes\Service; |
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use OCA\TwoFactorBackupCodes\Db\BackupCode; |
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use OCA\TwoFactorBackupCodes\Db\BackupCodeMapper; |
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use OCP\IUser; |
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use OCP\Security\IHasher; |
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use OCP\Security\ISecureRandom; |
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class BackupCodeStorage { |
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/** @var BackupCodeMapper */ |
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private $mapper; |
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/** @var IHasher */ |
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private $hasher; |
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/** @var ISecureRandom */ |
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private $random; |
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public function __construct(BackupCodeMapper $mapper, ISecureRandom $random, IHasher $hasher) { |
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$this->mapper = $mapper; |
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$this->hasher = $hasher; |
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$this->random = $random; |
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} |
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/** |
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* @param IUser $user |
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* @return string[] |
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*/ |
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public function createCodes(IUser $user, $number = 10) { |
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$result = []; |
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// Delete existing ones |
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$this->mapper->deleteCodes($user); |
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$uid = $user->getUID(); |
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foreach (range(1, min([$number, 20])) as $i) { |
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$code = $this->random->generate(10, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'); |
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$dbCode = new BackupCode(); |
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$dbCode->setUserId($uid); |
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$dbCode->setCode($this->hasher->hash($code)); |
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$dbCode->setUsed(0); |
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$this->mapper->insert($dbCode); |
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array_push($result, $code); |
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} |
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return $result; |
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} |
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/** |
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* @param IUser $user |
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* @return bool |
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*/ |
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public function hasBackupCodes(IUser $user) { |
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$codes = $this->mapper->getBackupCodes($user); |
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return count($codes) > 0; |
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} |
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/** |
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* @param IUser $user |
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* @return array |
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*/ |
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public function getBackupCodesState(IUser $user) { |
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$codes = $this->mapper->getBackupCodes($user); |
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$total = count($codes); |
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$used = 0; |
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array_walk($codes, function (BackupCode $code) use (&$used) { |
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if (1 === (int) $code->getUsed()) { |
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$used++; |
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} |
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}); |
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return [ |
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'enabled' => $total > 0, |
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'total' => $total, |
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'used' => $used, |
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]; |
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} |
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/** |
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* @param IUser $user |
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* @param string $code |
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* @return bool |
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*/ |
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public function validateCode(IUser $user, $code) { |
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$dbCodes = $this->mapper->getBackupCodes($user); |
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foreach ($dbCodes as $dbCode) { |
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if (0 === (int) $dbCode->getUsed() && $this->hasher->verify($code, $dbCode->getCode())) { |
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$dbCode->setUsed(1); |
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$this->mapper->update($dbCode); |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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nextcloud /
server
