f8fe7488a5
Starting with Nextcloud 14, the server knows the enabled/disabled state of 2fa providers. While it will query that information if it's unknown (on first use), it won't notice any changes. Thus, providers have to propagate that information themselves. Ref https://github.com/nextcloud/twofactor_totp/pull/263 Ref https://github.com/nextcloud/twofactor_u2f/pull/210 Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>
137 lines
3.4 KiB
PHP
137 lines
3.4 KiB
PHP
<?php
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/**
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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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 BadMethodCallException;
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use OCA\TwoFactorBackupCodes\Db\BackupCode;
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use OCA\TwoFactorBackupCodes\Db\BackupCodeMapper;
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use OCA\TwoFactorBackupCodes\Event\CodesGenerated;
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use OCP\Activity\IManager;
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use OCP\ILogger;
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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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use Symfony\Component\EventDispatcher\EventDispatcherInterface;
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class BackupCodeStorage {
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private static $CODE_LENGTH = 16;
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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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/** @var EventDispatcherInterface */
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private $eventDispatcher;
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public function __construct(BackupCodeMapper $mapper,
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ISecureRandom $random,
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IHasher $hasher,
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EventDispatcherInterface $eventDispatcher) {
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$this->mapper = $mapper;
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$this->hasher = $hasher;
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$this->random = $random;
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$this->eventDispatcher = $eventDispatcher;
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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 = $this->random->generate(self::$CODE_LENGTH, ISecureRandom::CHAR_UPPER . ISecureRandom::CHAR_DIGITS);
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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($dbCode);
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$result[] = $code;
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}
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$this->eventDispatcher->dispatch(CodesGenerated::class, new CodesGenerated($user));
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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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