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Alternative option to RDS Library for IAM (aws#867)
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31 changes: 31 additions & 0 deletions
31
wrapper/src/main/java/software/amazon/jdbc/plugin/iam/IamTokenUtility.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| /* | ||
| * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
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| package software.amazon.jdbc.plugin.iam; | ||
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| import org.checkerframework.checker.nullness.qual.NonNull; | ||
| import software.amazon.awssdk.auth.credentials.AwsCredentialsProvider; | ||
| import software.amazon.awssdk.regions.Region; | ||
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| public interface IamTokenUtility { | ||
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| String generateAuthenticationToken( | ||
| final @NonNull AwsCredentialsProvider credentialsProvider, | ||
| final @NonNull Region region, | ||
| final @NonNull String hostname, | ||
| final int port, | ||
| final @NonNull String username); | ||
| } |
91 changes: 91 additions & 0 deletions
91
wrapper/src/main/java/software/amazon/jdbc/plugin/iam/LightRdsUtility.java
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| /* | ||
| * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| package software.amazon.jdbc.plugin.iam; | ||
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| import java.time.Clock; | ||
| import java.time.Duration; | ||
| import java.time.Instant; | ||
| import java.util.logging.Logger; | ||
| import org.checkerframework.checker.nullness.qual.NonNull; | ||
| import software.amazon.awssdk.auth.credentials.AwsCredentials; | ||
| import software.amazon.awssdk.auth.credentials.AwsCredentialsProvider; | ||
| import software.amazon.awssdk.auth.credentials.CredentialUtils; | ||
| import software.amazon.awssdk.auth.signer.Aws4Signer; | ||
| import software.amazon.awssdk.auth.signer.params.Aws4PresignerParams; | ||
| import software.amazon.awssdk.http.SdkHttpFullRequest; | ||
| import software.amazon.awssdk.http.SdkHttpMethod; | ||
| import software.amazon.awssdk.regions.Region; | ||
| import software.amazon.awssdk.utils.CompletableFutureUtils; | ||
| import software.amazon.awssdk.utils.StringUtils; | ||
| import software.amazon.jdbc.util.Messages; | ||
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| public class LightRdsUtility implements IamTokenUtility { | ||
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| private static final Logger LOGGER = Logger.getLogger(LightRdsUtility.class.getName()); | ||
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| // The time the IAM token is good for. https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.IAMDBAuth.html | ||
| private static final Duration EXPIRATION_DURATION = Duration.ofMinutes(15); | ||
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| @Override | ||
| public String generateAuthenticationToken( | ||
| final @NonNull AwsCredentialsProvider credentialsProvider, | ||
| final @NonNull Region region, | ||
| final @NonNull String hostname, | ||
| final int port, | ||
| final @NonNull String username) { | ||
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| // The following code is inspired by software.amazon.awssdk.services.rds.DefaultRdsUtilities, | ||
| // method generateAuthenticationToken(GenerateAuthenticationTokenRequest request). | ||
| // Update this code when original method changes. | ||
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| final Clock clock = Clock.systemUTC(); | ||
| final Aws4Signer signer = Aws4Signer.create(); | ||
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| SdkHttpFullRequest httpRequest = SdkHttpFullRequest.builder() | ||
| .method(SdkHttpMethod.GET) | ||
| .protocol("https") | ||
| .host(hostname) | ||
| .port(port) | ||
| .encodedPath("/") | ||
| .putRawQueryParameter("DBUser", username) | ||
| .putRawQueryParameter("Action", "connect") | ||
| .build(); | ||
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| Instant expirationTime = Instant.now(clock).plus(EXPIRATION_DURATION); | ||
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| final AwsCredentials credentials = CredentialUtils.toCredentials( | ||
| CompletableFutureUtils.joinLikeSync(credentialsProvider.resolveIdentity())); | ||
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| Aws4PresignerParams presignRequest = Aws4PresignerParams.builder() | ||
| .signingClockOverride(clock) | ||
| .expirationTime(expirationTime) | ||
| .awsCredentials(credentials) | ||
| .signingName("rds-db") | ||
| .signingRegion(region) | ||
| .build(); | ||
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| SdkHttpFullRequest fullRequest = signer.presign(httpRequest, presignRequest); | ||
| String signedUrl = fullRequest.getUri().toString(); | ||
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| // Format should be: | ||
| // <hostname>>:<port>>/?Action=connect&DBUser=<username>>&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Expi... | ||
| // Note: This must be the real RDS hostname, not proxy or tunnels | ||
| String result = StringUtils.replacePrefixIgnoreCase(signedUrl, "https://", ""); | ||
| LOGGER.finest(() -> "Generated RDS authentication token with expiration of " + expirationTime); | ||
| return result; | ||
| } | ||
| } |
45 changes: 45 additions & 0 deletions
45
wrapper/src/main/java/software/amazon/jdbc/plugin/iam/RegularRdsUtility.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| /* | ||
| * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package software.amazon.jdbc.plugin.iam; | ||
|
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| import org.checkerframework.checker.nullness.qual.NonNull; | ||
| import software.amazon.awssdk.auth.credentials.AwsCredentialsProvider; | ||
| import software.amazon.awssdk.regions.Region; | ||
| import software.amazon.awssdk.services.rds.RdsUtilities; | ||
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| public class RegularRdsUtility implements IamTokenUtility { | ||
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| @Override | ||
| public String generateAuthenticationToken( | ||
| final @NonNull AwsCredentialsProvider credentialsProvider, | ||
| final @NonNull Region region, | ||
| final @NonNull String hostname, | ||
| final int port, | ||
| final @NonNull String username) { | ||
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| final RdsUtilities utilities = RdsUtilities.builder() | ||
| .credentialsProvider(credentialsProvider) | ||
| .region(region) | ||
| .build(); | ||
| return utilities.generateAuthenticationToken((builder) -> | ||
| builder | ||
| .hostname(hostname) | ||
| .port(port) | ||
| .username(username) | ||
| ); | ||
| } | ||
| } |
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