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<?php |
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/** |
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* @copyright Copyright (c) 2016 Canis.io |
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* @license MIT |
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*/ |
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namespace Canis\Lumen\Jwt; |
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use Auth; |
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use Illuminate\Http\Request; |
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use Illuminate\Support\Str; |
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use Illuminate\Auth\GuardHelpers; |
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use Illuminate\Contracts\Auth\UserProvider; |
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use Illuminate\Contracts\Auth\Guard; |
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use Illuminate\Contracts\Auth\Authenticatable; |
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use Canis\Lumen\Jwt\Exceptions\InvalidTokenException; |
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use Canis\Lumen\Jwt\Exceptions\InvalidAdapterException; |
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abstract class BaseGuard |
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implements Guard, GuardInterface |
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{ |
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use GuardHelpers; |
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private $request; |
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private $providerIdentifier; |
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public function __construct($provider, Request $request) |
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{ |
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$this->request = $request; |
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$this->providerIdentifier = $provider; |
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$this->provider = Auth::createUserProvider($provider); |
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} |
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public function getAdapterFactoryClass() |
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{ |
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$config = config('jwt'); |
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if (!isset($config['adapter'])) { |
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$config['adapter'] = 'lcobucci'; |
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} |
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if (class_exists($config['adapter'])) { |
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$factoryClass = $config['adapter']; |
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} else { |
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$factoryClass = 'Canis\Lumen\Jwt\Adapters\\' . ucfirst($config['adapter']) .'\Factory'; |
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if (!class_exists($factoryClass)) { |
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throw new InvalidAdapterException("{$config['adapter']} is not available"); |
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} |
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} |
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return $factoryClass; |
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} |
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protected function getAdapterFactory() |
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{ |
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static $factory; |
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if (!isset($factory)) { |
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$config = config('jwt'); |
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$factoryClass = $this->getAdapterFactoryClass(); |
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$factory = new $factoryClass($config); |
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} |
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return $factory; |
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} |
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protected function getProcessor() |
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{ |
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return $this->getAdapterFactory()->getProcessor(); |
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} |
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protected function getGenerator() |
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{ |
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return $this->getAdapterFactory()->getGenerator(); |
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} |
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public function getProvider() |
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{ |
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return $this->provider; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function user() |
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{ |
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if (!is_null($this->user)) { |
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return $this->user; |
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} |
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$user = null; |
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$token = $this->getBearerToken(); |
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if ($token !== false) { |
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$user = $this->getProvider()->retrieveById($token->getClaim('sub')); |
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} |
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return $this->user = $user; |
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} |
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public function getBearerToken() |
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{ |
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$authHeader = $this->request->headers->get('Authorization'); |
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if (empty($authHeader)) { |
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return false; |
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} |
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if (!Str::startsWith(strtolower($authHeader), 'bearer')) { |
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return false; |
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} |
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$token = trim(str_ireplace('bearer', '', $authHeader)); |
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$processor = $this->getProcessor(); |
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return $processor($token); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function validate(array $credentials = []) |
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{ |
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$user = $this->getProvider()->retrieveByCredentials($credentials); |
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if ($this->hasValidCredentials($user, $credentials)) { |
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return true; |
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} |
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return false; |
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} |
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public function setRequest(Request $request) |
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{ |
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$this->request = $request; |
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} |
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/** |
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* Attempt to authenticate a user using the given credentials. |
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* |
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* @param array $credentials |
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* @return bool |
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*/ |
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public function attempt(array $credentials = []) |
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{ |
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$user = $this->getProvider()->retrieveByCredentials($credentials); |
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if ($this->hasValidCredentials($user, $credentials)) { |
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$tokenGenerator = $this->getGenerator(); |
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$claims = $user->getJWTClaims(); |
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$claims['sub'] = $user->getJWTSubject(); |
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$claims['type'] = $this->providerIdentifier; |
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if (!($token = $tokenGenerator($claims))) { |
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throw new InvalidTokenException("Unable to generate token"); |
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} |
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return $token; |
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} |
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return false; |
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} |
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} |
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canis-io /
lumen-jwt-auth
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Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: