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<?php |
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declare(strict_types = 1); |
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/** |
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* Copyright 2021 SURFnet B.V. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace Surfnet\StepupSelfService\SelfServiceBundle\Service; |
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use Psr\Log\LoggerInterface; |
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use Surfnet\StepupBundle\Service\SecondFactorTypeService; |
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use Surfnet\StepupBundle\Value\SecondFactorType; |
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use Surfnet\StepupBundle\Value\VettingType; |
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use Surfnet\StepupMiddlewareClientBundle\Identity\Dto\Identity; |
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use Surfnet\StepupMiddlewareClientBundle\Identity\Dto\VettedSecondFactor; |
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class SelfVetMarshaller implements VettingMarshaller |
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{ |
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public function __construct( |
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private readonly SecondFactorService $secondFactorService, |
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private readonly SecondFactorTypeService $secondFactorTypeService, |
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private readonly InstitutionConfigurationOptionsService $institutionConfigurationService, |
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private readonly AuthorizationService $authorizationService, |
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private readonly LoggerInterface $logger |
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) { |
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} |
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/** |
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* You are allowed to self vet when: |
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* 1. You already have a vetted token |
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* 2. The vetted token has higher LoA (or equal) to the one being vetted |
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* |
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* Or |
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* |
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* When you have a self asserted token, you are allowed to self-vet any |
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* token with the self-vetted token. Resulting in tokens that are of the |
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* self-asserted token type. |
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*/ |
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public function isAllowed(Identity $identity, string $secondFactorId): bool |
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{ |
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if (!$this->isSelfVettingEnabledFor($identity)) { |
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return false; |
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} |
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$vettedSecondFactors = $this->secondFactorService->findVettedByIdentity($identity->id); |
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if ($vettedSecondFactors->getTotalItems() === 0) { |
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$this->logger->info('Self vetting is not allowed, no vetted tokens are available'); |
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return false; |
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} |
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$candidateToken = $this->secondFactorService->findOneVerified($secondFactorId); |
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if ($candidateToken !== null) { |
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/** @var VettedSecondFactor $authoringSecondFactor */ |
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foreach ($vettedSecondFactors->getElements() as $authoringSecondFactor) { |
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$hasSuitableToken = $this->secondFactorTypeService->hasEqualOrLowerLoaComparedTo( |
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new SecondFactorType($candidateToken->type), |
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new VettingType(VettingType::TYPE_SELF_VET), |
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new SecondFactorType($authoringSecondFactor->type), |
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new VettingType($authoringSecondFactor->vettingType) |
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); |
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if ($hasSuitableToken) { |
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$this->logger->info('Self vetting is allowed, a suitable token was found'); |
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return true; |
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} |
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} |
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} |
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// Finally, we allow vetting with self-asserted tokens. Using the SAT authorization service |
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// we ascertain if the user is allowed to use SAT. |
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if ($this->authorizationService->maySelfVetSelfAssertedTokens($identity)) { |
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$this->logger->info('Self vetting is allowed, by utilizing self-asserted tokens'); |
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return true; |
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} |
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$this->logger->info('Self vetting is not allowed, no suitable tokens are available'); |
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return false; |
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} |
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/** |
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* Does the institution allow for self vetting? |
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*/ |
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private function isSelfVettingEnabledFor(Identity $identity): bool |
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{ |
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$this->logger->info('Determine if self vetting is allowed'); |
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$configurationOptions = $this->institutionConfigurationService->getInstitutionConfigurationOptionsFor( |
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$identity->institution |
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); |
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if ($configurationOptions->selfVet === false) { |
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$this->logger->info( |
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sprintf( |
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'Self vetting is not allowed, as the option is not enabled for institution %s', |
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$identity->institution |
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) |
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); |
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return false; |
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} |
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$this->logger->info(sprintf('Self vetting is allowed for %s', $identity->institution)); |
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return true; |
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} |
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} |
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OpenConext /
Stepup-SelfService
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