Examples with JwtType io.jans.as.model.jwt.JwtType used on opensource projects

Example 1 with JwtType

use of io.jans.as.model.jwt.JwtType in project jans by JanssenProject.

the class ClientAssertion method load.

private boolean load(AppConfiguration appConfiguration, AbstractCryptoProvider cryptoProvider, String clientId, io.jans.as.model.token.ClientAssertionType clientAssertionType, String encodedAssertion) throws Exception {
    boolean result;
    if (clientAssertionType == ClientAssertionType.JWT_BEARER) {
        if (StringUtils.isNotBlank(encodedAssertion)) {
            jwt = Jwt.parse(encodedAssertion);
            // TODO: Store jti this value to check for duplicates
            // Validate clientId
            String issuer = jwt.getClaims().getClaimAsString(JwtClaimName.ISSUER);
            String subject = jwt.getClaims().getClaimAsString(JwtClaimName.SUBJECT_IDENTIFIER);
            List<String> audience = jwt.getClaims().getClaimAsStringList(JwtClaimName.AUDIENCE);
            Date expirationTime = jwt.getClaims().getClaimAsDate(JwtClaimName.EXPIRATION_TIME);
            // SignatureAlgorithm algorithm = SignatureAlgorithm.fromName(jwt.getHeader().getClaimAsString(JwtHeaderName.ALGORITHM));
            if ((clientId == null && StringUtils.isNotBlank(issuer) && StringUtils.isNotBlank(subject) && issuer.equals(subject)) || (StringUtils.isNotBlank(clientId) && StringUtils.isNotBlank(issuer) && StringUtils.isNotBlank(subject) && clientId.equals(issuer) && issuer.equals(subject))) {
                // Validate audience
                String tokenUrl = appConfiguration.getTokenEndpoint();
                String parUrl = StringUtils.isNotBlank(appConfiguration.getParEndpoint()) ? appConfiguration.getParEndpoint() : "";
                String cibaAuthUrl = appConfiguration.getBackchannelAuthenticationEndpoint();
                if (audience != null && (audience.contains(appConfiguration.getIssuer()) || audience.contains(tokenUrl) || audience.contains(parUrl) || audience.contains(cibaAuthUrl))) {
                    // Validate expiration
                    if (expirationTime.after(new Date())) {
                        ClientService clientService = CdiUtil.bean(ClientService.class);
                        Client client = clientService.getClient(subject);
                        // Validate client
                        if (client != null) {
                            JwtType jwtType = JwtType.fromString(jwt.getHeader().getClaimAsString(JwtHeaderName.TYPE));
                            AuthenticationMethod authenticationMethod = client.getAuthenticationMethod();
                            SignatureAlgorithm signatureAlgorithm = jwt.getHeader().getSignatureAlgorithm();
                            if (jwtType == null && signatureAlgorithm != null) {
                                jwtType = signatureAlgorithm.getJwtType();
                            }
                            if (jwtType != null && signatureAlgorithm != null && signatureAlgorithm.getFamily() != null && ((authenticationMethod == AuthenticationMethod.CLIENT_SECRET_JWT && AlgorithmFamily.HMAC.equals(signatureAlgorithm.getFamily())) || (authenticationMethod == AuthenticationMethod.PRIVATE_KEY_JWT && (AlgorithmFamily.RSA.equals(signatureAlgorithm.getFamily()) || AlgorithmFamily.EC.equals(signatureAlgorithm.getFamily()))))) {
                                if (client.getTokenEndpointAuthSigningAlg() == null || SignatureAlgorithm.fromString(client.getTokenEndpointAuthSigningAlg()).equals(signatureAlgorithm)) {
                                    clientSecret = clientService.decryptSecret(client.getClientSecret());
                                    // Validate the crypto segment
                                    String keyId = jwt.getHeader().getKeyId();
                                    JSONObject jwks = Strings.isNullOrEmpty(client.getJwks()) ? JwtUtil.getJSONWebKeys(client.getJwksUri()) : new JSONObject(client.getJwks());
                                    String sharedSecret = clientService.decryptSecret(client.getClientSecret());
                                    boolean validSignature = cryptoProvider.verifySignature(jwt.getSigningInput(), jwt.getEncodedSignature(), keyId, jwks, sharedSecret, signatureAlgorithm);
                                    if (validSignature) {
                                        result = true;
                                    } else {
                                        throw new InvalidJwtException("Invalid cryptographic segment");
                                    }
                                } else {
                                    throw new InvalidJwtException("Invalid signing algorithm");
                                }
                            } else {
                                throw new InvalidJwtException("Invalid authentication method");
                            }
                        } else {
                            throw new InvalidJwtException("Invalid client");
                        }
                    } else {
                        throw new InvalidJwtException("JWT has expired");
                    }
                } else {
                    throw new InvalidJwtException("Invalid audience: " + audience);
                }
            } else {
                throw new InvalidJwtException("Invalid clientId");
            }
        } else {
            throw new InvalidJwtException("The Client Assertion is null or empty");
        }
    } else {
        throw new InvalidJwtException("Invalid Client Assertion Type");
    }
    return result;
}