The start of something beautiful

2024-09-11 22:48:07 -06:00
parent 45acea47f3
commit f5997ee5ec
5614 changed files with 630696 additions and 0 deletions
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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Security\Http\AccessToken\Oidc;
+
+use Jose\Component\Checker;
+use Jose\Component\Checker\ClaimCheckerManager;
+use Jose\Component\Core\Algorithm;
+use Jose\Component\Core\AlgorithmManager;
+use Jose\Component\Core\JWK;
+use Jose\Component\Core\JWKSet;
+use Jose\Component\Signature\JWSTokenSupport;
+use Jose\Component\Signature\JWSVerifier;
+use Jose\Component\Signature\Serializer\CompactSerializer;
+use Jose\Component\Signature\Serializer\JWSSerializerManager;
+use Psr\Clock\ClockInterface;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\Clock\Clock;
+use Symfony\Component\Security\Core\Exception\BadCredentialsException;
+use Symfony\Component\Security\Http\AccessToken\AccessTokenHandlerInterface;
+use Symfony\Component\Security\Http\AccessToken\Oidc\Exception\InvalidSignatureException;
+use Symfony\Component\Security\Http\AccessToken\Oidc\Exception\MissingClaimException;
+use Symfony\Component\Security\Http\Authenticator\FallbackUserLoader;
+use Symfony\Component\Security\Http\Authenticator\Passport\Badge\UserBadge;
+
+/**
+ * The token handler decodes and validates the token, and retrieves the user identifier from it.
+ */
+final class OidcTokenHandler implements AccessTokenHandlerInterface
+{
+    use OidcTrait;
+
+    public function __construct(
+        private Algorithm|AlgorithmManager $signatureAlgorithm,
+        private JWK|JWKSet $jwkset,
+        private string $audience,
+        private array $issuers,
+        private string $claim = 'sub',
+        private ?LoggerInterface $logger = null,
+        private ClockInterface $clock = new Clock(),
+    ) {
+        if ($signatureAlgorithm instanceof Algorithm) {
+            trigger_deprecation('symfony/security-http', '7.1', 'First argument must be instance of %s, %s given.', AlgorithmManager::class, Algorithm::class);
+            $this->signatureAlgorithm = new AlgorithmManager([$signatureAlgorithm]);
+        }
+        if ($jwkset instanceof JWK) {
+            trigger_deprecation('symfony/security-http', '7.1', 'Second argument must be instance of %s, %s given.', JWKSet::class, JWK::class);
+            $this->jwkset = new JWKSet([$jwkset]);
+        }
+    }
+
+    public function getUserBadgeFrom(string $accessToken): UserBadge
+    {
+        if (!class_exists(JWSVerifier::class) || !class_exists(Checker\HeaderCheckerManager::class)) {
+            throw new \LogicException('You cannot use the "oidc" token handler since "web-token/jwt-signature" and "web-token/jwt-checker" are not installed. Try running "composer require web-token/jwt-signature web-token/jwt-checker".');
+        }
+
+        try {
+            // Decode the token
+            $jwsVerifier = new JWSVerifier($this->signatureAlgorithm);
+            $serializerManager = new JWSSerializerManager([new CompactSerializer()]);
+            $jws = $serializerManager->unserialize($accessToken);
+            $claims = json_decode($jws->getPayload(), true);
+
+            // Verify the signature
+            if (!$jwsVerifier->verifyWithKeySet($jws, $this->jwkset, 0)) {
+                throw new InvalidSignatureException();
+            }
+
+            // Verify the headers
+            $headerCheckerManager = new Checker\HeaderCheckerManager([
+                new Checker\AlgorithmChecker($this->signatureAlgorithm->list()),
+            ], [
+                new JWSTokenSupport(),
+            ]);
+            // if this check fails, an InvalidHeaderException is thrown
+            $headerCheckerManager->check($jws, 0);
+
+            // Verify the claims
+            $checkers = [
+                new Checker\IssuedAtChecker(clock: $this->clock, allowedTimeDrift: 0, protectedHeaderOnly: false),
+                new Checker\NotBeforeChecker(clock: $this->clock, allowedTimeDrift: 0, protectedHeaderOnly: false),
+                new Checker\ExpirationTimeChecker(clock: $this->clock, allowedTimeDrift: 0, protectedHeaderOnly: false),
+                new Checker\AudienceChecker($this->audience),
+                new Checker\IssuerChecker($this->issuers),
+            ];
+            $claimCheckerManager = new ClaimCheckerManager($checkers);
+            // if this check fails, an InvalidClaimException is thrown
+            $claimCheckerManager->check($claims);
+
+            if (empty($claims[$this->claim])) {
+                throw new MissingClaimException(sprintf('"%s" claim not found.', $this->claim));
+            }
+
+            // UserLoader argument can be overridden by a UserProvider on AccessTokenAuthenticator::authenticate
+            return new UserBadge($claims[$this->claim], new FallbackUserLoader(fn () => $this->createUser($claims)), $claims);
+        } catch (\Exception $e) {
+            $this->logger?->error('An error occurred while decoding and validating the token.', [
+                'error' => $e->getMessage(),
+                'trace' => $e->getTraceAsString(),
+            ]);
+
+            throw new BadCredentialsException('Invalid credentials.', $e->getCode(), $e);
+        }
+    }
+}