mirror of
https://github.com/elyby/accounts.git
synced 2024-12-26 23:20:18 +05:30
249 lines
8.2 KiB
PHP
249 lines
8.2 KiB
PHP
<?php
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namespace api\components\User;
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use api\exceptions\ThisShouldNotHappenException;
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use common\models\Account;
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use common\models\AccountSession;
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use common\rbac\Roles as R;
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use DateInterval;
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use DateTime;
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use Emarref\Jwt\Algorithm\AlgorithmInterface;
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use Emarref\Jwt\Algorithm\Hs256;
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use Emarref\Jwt\Claim;
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use Emarref\Jwt\Encryption\Factory as EncryptionFactory;
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use Emarref\Jwt\Exception\VerificationException;
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use Emarref\Jwt\Token;
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use Emarref\Jwt\Verification\Context as VerificationContext;
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use Exception;
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use Yii;
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use yii\base\InvalidConfigException;
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use yii\web\UnauthorizedHttpException;
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use yii\web\User as YiiUserComponent;
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/**
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* @property AccountSession|null $activeSession
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* @property IdentityInterface|null $identity
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*
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* @method IdentityInterface|null loginByAccessToken($token, $type = null)
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* @method IdentityInterface|null getIdentity($autoRenew = true)
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*/
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class Component extends YiiUserComponent {
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public const KEEP_MINECRAFT_SESSIONS = 1;
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public const KEEP_SITE_SESSIONS = 2;
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public const KEEP_CURRENT_SESSION = 4;
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public const JWT_SUBJECT_PREFIX = 'ely|';
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public $enableSession = false;
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public $loginUrl = null;
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public $identityClass = Identity::class;
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public $secret;
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public $expirationTimeout = 'PT1H';
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public $sessionTimeout = 'P7D';
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/**
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* @var Token[]
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*/
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private static $parsedTokensCache = [];
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public function init() {
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parent::init();
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if (!$this->secret) {
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throw new InvalidConfigException('secret must be specified');
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}
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}
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public function findIdentityByAccessToken($accessToken): ?IdentityInterface {
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if (empty($accessToken)) {
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return null;
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}
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/** @var \api\components\User\IdentityInterface|string $identityClass */
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$identityClass = $this->identityClass;
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try {
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return $identityClass::findIdentityByAccessToken($accessToken);
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} catch (UnauthorizedHttpException $e) {
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// Do nothing. It's okay to catch this.
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} catch (Exception $e) {
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Yii::error($e);
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}
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return null;
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}
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public function createJwtAuthenticationToken(Account $account, bool $rememberMe): AuthenticationResult {
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$ip = Yii::$app->request->userIP;
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$token = $this->createToken($account);
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if ($rememberMe) {
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$session = new AccountSession();
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$session->account_id = $account->id;
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$session->setIp($ip);
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$session->generateRefreshToken();
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if (!$session->save()) {
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throw new ThisShouldNotHappenException('Cannot save account session model');
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}
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$token->addClaim(new Claim\JwtId($session->id));
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} else {
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$session = null;
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// Если мы не сохраняем сессию, то токен должен жить подольше,
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// чтобы не прогорала сессия во время работы с аккаунтом
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$token->addClaim(new Claim\Expiration((new DateTime())->add(new DateInterval($this->sessionTimeout))));
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}
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$jwt = $this->serializeToken($token);
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return new AuthenticationResult($account, $jwt, $session);
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}
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public function renewJwtAuthenticationToken(AccountSession $session): AuthenticationResult {
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$transaction = Yii::$app->db->beginTransaction();
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$account = $session->account;
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$token = $this->createToken($account);
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$token->addClaim(new Claim\JwtId($session->id));
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$jwt = $this->serializeToken($token);
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$result = new AuthenticationResult($account, $jwt, $session);
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$session->setIp(Yii::$app->request->userIP);
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$session->last_refreshed_at = time();
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if (!$session->save()) {
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throw new ThisShouldNotHappenException('Cannot update session info');
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}
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$transaction->commit();
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return $result;
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}
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/**
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* @param string $jwtString
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* @return Token распаршенный токен
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* @throws VerificationException если один из Claims не пройдёт проверку
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*/
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public function parseToken(string $jwtString): Token {
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$token = &self::$parsedTokensCache[$jwtString];
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if ($token === null) {
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$jwt = new Jwt();
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try {
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$notVerifiedToken = $jwt->deserialize($jwtString);
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} catch (Exception $e) {
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throw new VerificationException('Incorrect token encoding', 0, $e);
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}
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$context = new VerificationContext(EncryptionFactory::create($this->getAlgorithm()));
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$context->setSubject(self::JWT_SUBJECT_PREFIX);
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$jwt->verify($notVerifiedToken, $context);
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$token = $notVerifiedToken;
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}
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return $token;
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}
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/**
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* Метод находит AccountSession модель, относительно которой был выдан текущий JWT токен.
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* В случае, если на пути поиска встретится ошибка, будет возвращено значение null. Возможные кейсы:
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* - Юзер не авторизован
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* - Почему-то нет заголовка с токеном
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* - Во время проверки токена возникла ошибка, что привело к исключению
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* - В токене не найдено ключа сессии. Такое возможно, если юзер выбрал "не запоминать меня"
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* или просто старые токены, без поддержки сохранения используемой сессии
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*
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* @return AccountSession|null
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*/
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public function getActiveSession(): ?AccountSession {
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if ($this->getIsGuest()) {
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return null;
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}
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$bearer = $this->getBearerToken();
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if ($bearer === null) {
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return null;
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}
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try {
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$token = $this->parseToken($bearer);
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} catch (VerificationException $e) {
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return null;
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}
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$sessionId = $token->getPayload()->findClaimByName(Claim\JwtId::NAME);
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if ($sessionId === null) {
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return null;
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}
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return AccountSession::findOne($sessionId->getValue());
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}
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public function terminateSessions(Account $account, int $mode = 0): void {
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$currentSession = null;
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if ($mode & self::KEEP_CURRENT_SESSION) {
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$currentSession = $this->getActiveSession();
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}
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if (!($mode & self::KEEP_SITE_SESSIONS)) {
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foreach ($account->sessions as $session) {
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if ($currentSession === null || $currentSession->id !== $session->id) {
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$session->delete();
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}
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}
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}
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if (!($mode & self::KEEP_MINECRAFT_SESSIONS)) {
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foreach ($account->minecraftAccessKeys as $minecraftAccessKey) {
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$minecraftAccessKey->delete();
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}
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}
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}
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public function getAlgorithm(): AlgorithmInterface {
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return new Hs256($this->secret);
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}
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protected function serializeToken(Token $token): string {
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return (new Jwt())->serialize($token, EncryptionFactory::create($this->getAlgorithm()));
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}
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protected function createToken(Account $account): Token {
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$token = new Token();
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foreach($this->getClaims($account) as $claim) {
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$token->addClaim($claim);
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}
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return $token;
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}
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/**
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* @param Account $account
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* @return Claim\AbstractClaim[]
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*/
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protected function getClaims(Account $account): array {
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$currentTime = new DateTime();
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return [
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new ScopesClaim([R::ACCOUNTS_WEB_USER]),
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new Claim\IssuedAt($currentTime),
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new Claim\Expiration($currentTime->add(new DateInterval($this->expirationTimeout))),
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new Claim\Subject(self::JWT_SUBJECT_PREFIX . $account->id),
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];
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}
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private function getBearerToken() {
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$authHeader = Yii::$app->request->getHeaders()->get('Authorization');
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if ($authHeader === null || !preg_match('/^Bearer\s+(.*?)$/', $authHeader, $matches)) {
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return null;
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}
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return $matches[1];
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}
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}
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