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<?php |
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namespace yrc\api\models; |
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use Base32\Base32; |
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use yrc\api\models\TokenKeyPair; |
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use Yii; |
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/** |
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* Abstract class for generating and storing tokens |
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* @class Token |
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*/ |
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abstract class Token extends \yrc\redis\ActiveRecord |
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{ |
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/** |
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* This is our default token lifespan |
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* @const TOKEN_EXPIRATION_TIME |
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*/ |
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const TOKEN_EXPIRATION_TIME = '+15 minutes'; |
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/** |
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* @inheritdoc |
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*/ |
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public function attributes() |
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{ |
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return [ |
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'id', |
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'user_id', |
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'access_token', |
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'refresh_token', |
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'ikm', |
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'client_public', |
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'crypt_id', |
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'expires_at' |
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]; |
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} |
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/** |
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* Returns the token key pair object |
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* @return TokenKeyPair |
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*/ |
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public function getCryptToken() |
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{ |
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return TokenKeyPair::find(['id' => $this->crypt_id])->one(); |
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} |
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/** |
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* Generates a new auth and refresh token pair |
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* @param int $userId |
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* @param bool $pubkey |
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* @return array |
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*/ |
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public static function generate($userId = null, $pubkey = null) |
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{ |
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$model = null; |
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$user = Yii::$app->yrc->userClass::findOne(['id' => $userId]); |
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if ($user === null) { |
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throw new \yii\base\Exception('Invalid user'); |
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} |
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$token = new static; |
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$token->user_id = $userId; |
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$token->access_token = \str_replace('=', '', Base32::encode(\random_bytes(32))); |
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$token->refresh_token = \str_replace('=', '', Base32::encode(\random_bytes(32))); |
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$token->ikm = \base64_encode(\random_bytes(32)); |
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$token->expires_at = \strtotime(static::TOKEN_EXPIRATION_TIME); |
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// Prevent encrypted sessions from being downgraded |
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$token->client_public = $pubkey; |
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if ($pubkey !== null) { |
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$model = TokenKeyPair::generate(); |
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$token->crypt_id = $model->id; |
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} |
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if ($token->save()) { |
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$tokens = $token->attributes; |
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if ($model !== null) { |
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$tokens['crypt'] = [ |
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'public' => \base64_encode($model->getBoxPublicKey()), |
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'signing' => \base64_encode($model->getSignPublicKey()), |
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'signature' => \base64_encode(\Sodium\crypto_sign( |
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$model->getBoxPublicKey(), |
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\base64_decode($model->secret_sign_kp) |
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)), |
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'hash' => $model->hash |
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]; |
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} |
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return $tokens; |
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} |
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throw new \yii\base\Exception(Yii::t('yrc', 'Token failed to save')); |
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} |
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} |
charlesportwoodii /
yii2-api-rest-components
