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FISH-7866 AWS SDK Security Token Service (STS) support
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138 changes: 138 additions & 0 deletions
138
...main/java/fish/payara/cloud/connectors/amazonsqs/api/outbound/STSCredentialsProvider.java
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| /* | ||
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | ||
| * | ||
| * Copyright (c) 2024 Payara Foundation and/or its affiliates. All rights reserved. | ||
| * | ||
| * The contents of this file are subject to the terms of either the GNU | ||
| * General Public License Version 2 only ("GPL") or the Common Development | ||
| * and Distribution License("CDDL") (collectively, the "License"). You | ||
| * may not use this file except in compliance with the License. You can | ||
| * obtain a copy of the License at | ||
| * https://github.com/payara/Payara/blob/master/LICENSE.txt | ||
| * See the License for the specific | ||
| * language governing permissions and limitations under the License. | ||
| * | ||
| * When distributing the software, include this License Header Notice in each | ||
| * file and include the License file at glassfish/legal/LICENSE.txt. | ||
| * | ||
| * GPL Classpath Exception: | ||
| * The Payara Foundation designates this particular file as subject to the "Classpath" | ||
| * exception as provided by the Payara Foundation in the GPL Version 2 section of the License | ||
| * file that accompanied this code. | ||
| * | ||
| * Modifications: | ||
| * If applicable, add the following below the License Header, with the fields | ||
| * enclosed by brackets [] replaced by your own identifying information: | ||
| * "Portions Copyright [year] [name of copyright owner]" | ||
| * | ||
| * Contributor(s): | ||
| * If you wish your version of this file to be governed by only the CDDL or | ||
| * only the GPL Version 2, indicate your decision by adding "[Contributor] | ||
| * elects to include this software in this distribution under the [CDDL or GPL | ||
| * Version 2] license." If you don't indicate a single choice of license, a | ||
| * recipient has the option to distribute your version of this file under | ||
| * either the CDDL, the GPL Version 2 or to extend the choice of license to | ||
| * its licensees as provided above. However, if you add GPL Version 2 code | ||
| * and therefore, elected the GPL Version 2 license, then the option applies | ||
| * only if the new code is made subject to such option by the copyright | ||
| * holder. | ||
| */ | ||
| package fish.payara.cloud.connectors.amazonsqs.api.outbound; | ||
|
|
||
| import java.time.Duration; | ||
| import java.time.Instant; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.concurrent.locks.Lock; | ||
| import java.util.concurrent.locks.ReentrantLock; | ||
| import java.util.logging.Level; | ||
| import java.util.logging.Logger; | ||
| import software.amazon.awssdk.auth.credentials.AwsCredentials; | ||
| import software.amazon.awssdk.auth.credentials.AwsCredentialsProvider; | ||
| import software.amazon.awssdk.auth.credentials.AwsSessionCredentials; | ||
| import software.amazon.awssdk.regions.Region; | ||
| import software.amazon.awssdk.services.sts.StsClient; | ||
| import software.amazon.awssdk.services.sts.model.AssumeRoleRequest; | ||
| import software.amazon.awssdk.services.sts.model.AssumeRoleResponse; | ||
| import software.amazon.awssdk.services.sts.model.Credentials; | ||
|
|
||
| /** | ||
| * AWS STS Credentials Provider with caching and thread safety. | ||
| * | ||
| * This class provides AWS credentials by assuming a role using the AWS Security Token Service (STS). | ||
| * It caches the credentials and ensures thread safety using locks. | ||
| * | ||
| * @author Gaurav Gupta | ||
| */ | ||
| public class STSCredentialsProvider implements AwsCredentialsProvider { | ||
|
|
||
| private static final Logger LOGGER = Logger.getLogger(STSCredentialsProvider.class.getName()); | ||
| private static final Duration EXPIRATION_THRESHOLD = Duration.ofMinutes(5); | ||
| private final String roleArn; | ||
| private final String roleSessionName; | ||
| private final Region region; | ||
| private volatile AwsSessionCredentials cachedCredentials; | ||
| private volatile Instant expirationTime; | ||
| private final Lock lock = new ReentrantLock(); | ||
| private static final Map<String, STSCredentialsProvider> providerInstances = new HashMap<>(); | ||
|
|
||
| /** | ||
| * Returns a singleton instance of STSCredentialsProvider for a unique session name. | ||
| * | ||
| * @param roleArn The ARN of the role to assume. | ||
| * @param roleSessionName The name of the role session. | ||
| * @param region The AWS region. | ||
| * @return The STSCredentialsProvider instance. | ||
| */ | ||
| public static STSCredentialsProvider create(String roleArn, String roleSessionName, Region region) { | ||
| String uniqueSessionKey = roleSessionName + "@" + region.id(); | ||
| return providerInstances.computeIfAbsent(uniqueSessionKey, key -> new STSCredentialsProvider(roleArn, roleSessionName, region)); | ||
| } | ||
|
|
||
| private STSCredentialsProvider(String roleArn, String roleSessionName, Region region) { | ||
| this.roleArn = roleArn; | ||
| this.roleSessionName = roleSessionName; | ||
| this.region = region; | ||
| } | ||
|
|
||
| @Override | ||
| public AwsCredentials resolveCredentials() { | ||
| if (cachedCredentials != null && !isCredentialsExpired()) { | ||
| LOGGER.fine("Reusing cached AWS session credentials"); | ||
| return cachedCredentials; | ||
| } else { | ||
| lock.lock(); | ||
| try { | ||
| if (cachedCredentials != null && !isCredentialsExpired()) { | ||
| LOGGER.fine("Reusing cached AWS session credentials after lock"); | ||
| return cachedCredentials; | ||
| } | ||
| LOGGER.fine("Cached AWS session credentials expired or not present"); | ||
|
|
||
| StsClient stsClient = StsClient.builder().region(region).build(); | ||
| AssumeRoleRequest assumeRoleRequest = AssumeRoleRequest.builder() | ||
| .roleArn(roleArn) | ||
| .roleSessionName(roleSessionName) | ||
| .build(); | ||
|
|
||
| AssumeRoleResponse assumeRoleResponse = stsClient.assumeRole(assumeRoleRequest); | ||
| Credentials stsCredentials = assumeRoleResponse.credentials(); | ||
| cachedCredentials = AwsSessionCredentials.create( | ||
| stsCredentials.accessKeyId(), | ||
| stsCredentials.secretAccessKey(), | ||
| stsCredentials.sessionToken() | ||
| ); | ||
| expirationTime = stsCredentials.expiration(); | ||
| LOGGER.log(Level.FINE, "Obtained new AWS session credentials - Session Token: {0}, Expiration Time: {1}", new Object[]{stsCredentials.sessionToken(), stsCredentials.expiration()}); | ||
| return cachedCredentials; | ||
| } finally { | ||
| lock.unlock(); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private boolean isCredentialsExpired() { | ||
| // Check if the credentials are expired or about to expire | ||
| return expirationTime == null || Instant.now().isAfter(expirationTime.minus(EXPIRATION_THRESHOLD)); | ||
| } | ||
| } |
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