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<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\filters\auth; |
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use yii\web\Request; |
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/** |
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* HttpBasicAuth is an action filter that supports the HTTP Basic authentication method. |
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* |
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* You may use HttpBasicAuth by attaching it as a behavior to a controller or module, like the following: |
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* |
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* ```php |
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* public function behaviors() |
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* { |
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* return [ |
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* 'basicAuth' => [ |
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* 'class' => \yii\filters\auth\HttpBasicAuth::className(), |
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* ], |
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* ]; |
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* } |
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* ``` |
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* |
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* The default implementation of HttpBasicAuth uses the [[\yii\web\User::loginByAccessToken()|loginByAccessToken()]] |
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* method of the `user` application component and only passes the user name. This implementation is used |
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* for authenticating API clients. |
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* |
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* If you want to authenticate users using username and password, you should provide the [[auth]] function for example like the following: |
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* |
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* ```php |
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* public function behaviors() |
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* { |
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* return [ |
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* 'basicAuth' => [ |
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* 'class' => \yii\filters\auth\HttpBasicAuth::className(), |
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* 'auth' => function ($username, $password) { |
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* $user = User::find()->where(['username' => $username])->one(); |
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* if ($user->verifyPassword($password)) { |
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* return $user; |
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* } |
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* return null; |
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* }, |
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* ], |
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* ]; |
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* } |
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* ``` |
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* |
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* @author Qiang Xue <[email protected]> |
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* @since 2.0 |
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*/ |
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class HttpBasicAuth extends AuthMethod |
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{ |
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/** |
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* @var string the HTTP authentication realm |
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*/ |
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public $realm = 'api'; |
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/** |
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* @var callable a PHP callable that will authenticate the user with the HTTP basic auth information. |
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* The callable receives a username and a password as its parameters. It should return an identity object |
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* that matches the username and password. Null should be returned if there is no such identity. |
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* |
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* The following code is a typical implementation of this callable: |
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* |
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* ```php |
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* function ($username, $password) { |
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* return \app\models\User::findOne([ |
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* 'username' => $username, |
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* 'password' => $password, |
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* ]); |
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* } |
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* ``` |
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* |
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* If this property is not set, the username information will be considered as an access token |
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* while the password information will be ignored. The [[\yii\web\User::loginByAccessToken()]] |
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* method will be called to authenticate and login the user. |
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*/ |
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public $auth; |
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/** |
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* @inheritdoc |
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*/ |
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public function authenticate($user, $request, $response) |
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{ |
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list($username, $password) = $this->getCredentialsFromRequest($request); |
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if ($this->auth) { |
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if ($username !== null || $password !== null) { |
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$identity = call_user_func($this->auth, $username, $password); |
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if ($identity !== null) { |
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$user->switchIdentity($identity); |
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} else { |
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$this->handleFailure($response); |
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} |
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return $identity; |
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} |
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} elseif ($username !== null) { |
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$identity = $user->loginByAccessToken($username, get_class($this)); |
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if ($identity === null) { |
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$this->handleFailure($response); |
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} |
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return $identity; |
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} |
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return null; |
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} |
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/** |
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* Extract username and password from $request. |
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* |
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* @param Request $request |
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* @since 2.0.13 |
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* @return array |
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*/ |
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protected function getCredentialsFromRequest($request) |
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{ |
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$username = $request->getAuthUser(); |
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$password = $request->getAuthPassword(); |
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if ($username !== null || $password !== null) { |
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return [$username, $password]; |
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} |
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$headers = $request->getHeaders(); |
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$auth_token = $headers->get('HTTP_AUTHORIZATION') ?: $headers->get('REDIRECT_HTTP_AUTHORIZATION'); |
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if ($auth_token != null && strpos(strtolower($auth_token), 'basic') === 0) { |
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$parts = array_map(function ($value) { |
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return strlen($value) === 0 ? null : $value; |
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}, explode(':', base64_decode(mb_substr($auth_token, 6)), 2)); |
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if (count($parts) < 2) { |
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return [$parts[0], null]; |
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} |
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return $parts; |
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} |
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return [null, null]; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function challenge($response) |
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{ |
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$response->getHeaders()->set('WWW-Authenticate', "Basic realm=\"{$this->realm}\""); |
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} |
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} |
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yiisoft /
yii2
