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<?php |
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/** |
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* Multi-factor authentication for Yii2 projects |
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* |
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* @link https://github.com/hiqdev/yii2-mfa |
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* @package yii2-mfa |
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* @license BSD-3-Clause |
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* @copyright Copyright (c) 2016-2018, HiQDev (http://hiqdev.com/) |
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*/ |
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namespace hiqdev\yii2\mfa; |
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use hiqdev\yii2\mfa\base\MfaIdentityInterface; |
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use hiqdev\yii2\mfa\base\Totp; |
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use hiqdev\yii2\mfa\exceptions\IpNotAllowedException; |
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use hiqdev\yii2\mfa\exceptions\TotpVerificationFailedException; |
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use Yii; |
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use yii\di\Instance; |
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use yii\validators\IpValidator; |
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/** |
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* Multi-factor authentication module. |
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* |
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* @author Andrii Vasyliev <[email protected]> |
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*/ |
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class Module extends \yii\base\Module |
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{ |
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public $paramPrefix = 'MFA-'; |
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protected $_totp; |
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public function setTotp($value) |
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{ |
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$this->_totp = $value; |
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} |
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public function getTotp() |
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{ |
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if (!is_object($this->_totp)) { |
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$this->_totp = Instance::ensure($this->_totp, Totp::class); |
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$this->_totp->module = $this; |
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} |
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return $this->_totp; |
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} |
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public function sessionSet($name, $value) |
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{ |
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Yii::$app->session->set($this->paramPrefix . $name, $value); |
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} |
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public function sessionGet($name) |
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{ |
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return Yii::$app->session->get($this->paramPrefix . $name); |
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} |
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public function sessionRemove($name) |
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{ |
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return Yii::$app->session->remove($this->paramPrefix . $name); |
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} |
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public function setHalfUser(MfaIdentityInterface $value) |
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{ |
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$this->sessionSet('half-user-id', $value->getId()); |
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$this->sessionSet('totp-tmp-secret', $value->getTotpSecret()); |
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} |
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public function getHalfUser(): ?MfaIdentityInterface |
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{ |
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$id = $this->sessionGet('half-user-id'); |
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$class = Yii::$app->user->identityClass; |
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return $class::findIdentity($id); |
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} |
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public function removeHalfUser() |
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{ |
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$this->sessionRemove('half-user-id'); |
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$this->sessionRemove('totp-tmp-secret'); |
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} |
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public function validateIps(MfaIdentityInterface $identity) |
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{ |
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if (empty($identity->getAllowedIps())) { |
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return; |
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} |
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$ips = array_filter($identity->getAllowedIps()); |
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$validator = new IpValidator([ |
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'ipv6' => false, |
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'ranges' => $ips, |
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]); |
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if ($validator->validate(Yii::$app->request->getUserIP())) { |
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return; |
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} |
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throw new IpNotAllowedException(); |
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} |
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public function validateTotp(MfaIdentityInterface $identity) |
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{ |
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if (empty($identity->getTotpSecret())) { |
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return; |
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} |
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if ($this->getTotp()->getIsVerified()) { |
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return; |
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} |
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throw new TotpVerificationFailedException(); |
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} |
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} |
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