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<?php |
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namespace SilverStripe\MFA\Service; |
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use SilverStripe\Core\Config\Configurable; |
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use SilverStripe\Core\Injector\Injectable; |
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use SilverStripe\Core\Injector\Injector; |
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use SilverStripe\MFA\BackupCode\Method; |
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use SilverStripe\MFA\Method\MethodInterface; |
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use UnexpectedValueException; |
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/** |
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* A service class that holds the configuration for enabled MFA methods and facilitates providing these methods |
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*/ |
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class MethodRegistry |
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{ |
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use Configurable; |
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use Injectable; |
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/** |
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* List of configured MFA methods. These should be class names that implement MethodInterface |
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* |
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* @config |
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* @var string[] |
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*/ |
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private static $methods = []; |
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/** |
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* A string referring to the classname of the method (implementing SilverStripe\MFA\Method\MethodInterface) that is |
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* to be used as the back-up method for MFA. This alters the registration of this method to be required - a forced |
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* registration once the user has registered at least one other method. Additionally it cannot be set as the default |
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* method for a user to log in with. |
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* |
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* @config |
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* @var string |
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*/ |
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private static $default_backup_method = Method::class; |
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/** |
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* Get implementations of all configured methods |
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* |
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* @return MethodInterface[] |
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* @throws UnexpectedValueException When an invalid method is registered |
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*/ |
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public function getMethods() |
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{ |
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$configuredMethods = (array) $this->config()->get('methods'); |
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$allMethods = []; |
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foreach ($configuredMethods as $method) { |
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$method = Injector::inst()->get($method); |
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if (!$method instanceof MethodInterface) { |
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throw new UnexpectedValueException(sprintf( |
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'Given method "%s" does not implement %s', |
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$method, |
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MethodInterface::class |
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)); |
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} |
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$allMethods[] = $method; |
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} |
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return $allMethods; |
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} |
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/** |
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* Helper method to indicate whether any MFA methods are registered |
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* |
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* @return bool |
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*/ |
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public function hasMethods() |
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{ |
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return count($this->getMethods()) > 0; |
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} |
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/** |
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* Indicates whether the given method is registered as the back-up method for MFA |
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* |
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* @param MethodInterface $method |
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* @return bool |
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*/ |
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public function isBackupMethod(MethodInterface $method) |
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{ |
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return is_a($method, $this->config()->get('default_backup_method')); |
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} |
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/** |
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* Fetches a Method by its URL Segment |
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* |
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* @param string $segment |
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* @return MethodInterface|null |
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*/ |
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public function getMethodByURLSegment($segment) |
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{ |
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foreach ($this->getMethods() as $method) { |
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if ($method->getURLSegment() === $segment) { |
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return $method; |
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} |
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} |
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return null; |
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} |
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} |
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silverstripe /
silverstripe-mfa
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