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<?php |
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namespace Yiisoft\Yii\Web\Auth; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Yiisoft\Yii\Web\User\IdentityInterface; |
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use Yiisoft\Yii\Web\User\IdentityRepositoryInterface; |
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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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* > Tip: In case authentication does not work like expected, make sure your web server passes |
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* username and password to `$_SERVER['PHP_AUTH_USER']` and `$_SERVER['PHP_AUTH_PW']` variables. |
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* If you are using Apache with PHP-CGI, you might need to add this line to your `.htaccess` file: |
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* ``` |
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* RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L] |
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* ``` |
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*/ |
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class HttpBasicAuth implements AuthInterface |
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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 $realm = 'api'; |
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/** |
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* @var callable a PHP callable that will authenticate the user with the HTTP basic auth information. |
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* The callable receives a username and a password as its parameters. It should return an identity object |
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* that matches the username and password. Null should be returned if there is no such identity. |
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* The callable will be called only if current user is not authenticated. |
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* |
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* The following code is a typical implementation of this callable: |
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* |
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* ```php |
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* function ($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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private $identityRepository; |
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public function __construct(IdentityRepositoryInterface $identityRepository) |
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{ |
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$this->identityRepository = $identityRepository; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function authenticate(ServerRequestInterface $request): ?IdentityInterface |
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{ |
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[$username, $password] = $this->getAuthCredentials($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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return $identity; |
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} |
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} elseif ($username !== null) { |
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$identity = $this->identityRepository->findIdentityByToken($username, get_class($this)); |
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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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* {@inheritdoc} |
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*/ |
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public function challenge(ResponseInterface $response): ResponseInterface |
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{ |
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return $response->withHeader('WWW-Authenticate', "Basic realm=\"{$this->realm}\""); |
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} |
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private function getAuthCredentials(ServerRequestInterface $request) |
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{ |
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$username = $_SERVER['PHP_AUTH_USER'] ?? null; |
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$password = $_SERVER['PHP_AUTH_PW'] ?? null; |
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if ($username !== null || $password !== null) { |
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return [$username, $password]; |
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} |
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/* |
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* Apache with php-cgi does not pass HTTP Basic authentication to PHP by default. |
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* To make it work, add the following line to to your .htaccess file: |
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* |
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* RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}] |
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*/ |
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$headers = $request->getHeader('Authorization'); |
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$authToken = !empty($headers) ? \reset($headers) : $_SERVER['REDIRECT_HTTP_AUTHORIZATION']; |
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if ($authToken !== null && strncasecmp($authToken, 'basic', 5) === 0) { |
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$parts = array_map(static function ($value) { |
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return strlen($value) === 0 ? null : $value; |
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}, explode(':', base64_decode(mb_substr($authToken, 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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yiisoft /
yii-web
