software.amazon.awssdk.services.eventbridge.auth.scheme.internal.DefaultEventBridgeAuthSchemeProvider Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of eventbridge Show documentation
The AWS Java SDK for EventBridge module holds the client classes that are used for communicating with EventBridge.
There is a newer version: 2.29.39
/*
 * 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. A copy of the License is located at
 * 
 * http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file 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.
 */

package software.amazon.awssdk.services.eventbridge.auth.scheme.internal;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import software.amazon.awssdk.annotations.Generated;
import software.amazon.awssdk.annotations.SdkInternalApi;
import software.amazon.awssdk.awscore.endpoints.AwsEndpointAttribute;
import software.amazon.awssdk.awscore.endpoints.authscheme.EndpointAuthScheme;
import software.amazon.awssdk.awscore.endpoints.authscheme.SigV4AuthScheme;
import software.amazon.awssdk.awscore.endpoints.authscheme.SigV4aAuthScheme;
import software.amazon.awssdk.endpoints.Endpoint;
import software.amazon.awssdk.http.auth.aws.scheme.AwsV4AuthScheme;
import software.amazon.awssdk.http.auth.aws.scheme.AwsV4aAuthScheme;
import software.amazon.awssdk.http.auth.aws.signer.AwsV4HttpSigner;
import software.amazon.awssdk.http.auth.aws.signer.AwsV4aHttpSigner;
import software.amazon.awssdk.http.auth.aws.signer.RegionSet;
import software.amazon.awssdk.http.auth.spi.scheme.AuthSchemeOption;
import software.amazon.awssdk.services.eventbridge.auth.scheme.EventBridgeAuthSchemeParams;
import software.amazon.awssdk.services.eventbridge.auth.scheme.EventBridgeAuthSchemeProvider;
import software.amazon.awssdk.services.eventbridge.endpoints.EventBridgeEndpointParams;
import software.amazon.awssdk.services.eventbridge.endpoints.EventBridgeEndpointProvider;
import software.amazon.awssdk.utils.CompletableFutureUtils;
import software.amazon.awssdk.utils.Validate;

@Generated("software.amazon.awssdk:codegen")
@SdkInternalApi
public final class DefaultEventBridgeAuthSchemeProvider implements EventBridgeAuthSchemeProvider {
    private static final DefaultEventBridgeAuthSchemeProvider DEFAULT = new DefaultEventBridgeAuthSchemeProvider();

    private static final EventBridgeAuthSchemeProvider MODELED_RESOLVER = ModeledEventBridgeAuthSchemeProvider.create();

    private static final EventBridgeEndpointProvider DELEGATE = EventBridgeEndpointProvider.defaultProvider();

    private DefaultEventBridgeAuthSchemeProvider() {
    }

    public static EventBridgeAuthSchemeProvider create() {
        return DEFAULT;
    }

    @Override
    public List resolveAuthScheme(EventBridgeAuthSchemeParams params) {
        EventBridgeEndpointParams endpointParameters = EventBridgeEndpointParams.builder().region(params.region())
                .endpointId(params.endpointId()).build();
        Endpoint endpoint = CompletableFutureUtils.joinLikeSync(endpointProvider(params).resolveEndpoint(endpointParameters));
        List authSchemes = endpoint.attribute(AwsEndpointAttribute.AUTH_SCHEMES);
        if (authSchemes == null) {
            return MODELED_RESOLVER.resolveAuthScheme(params);
        }
        List options = new ArrayList<>();
        for (EndpointAuthScheme authScheme : authSchemes) {
            String name = authScheme.name();
            switch (name) {
            case "sigv4":
                SigV4AuthScheme sigv4AuthScheme = Validate.isInstanceOf(SigV4AuthScheme.class, authScheme,
                        "Expecting auth scheme of class SigV4AuthScheme, got instead object of class %s", authScheme.getClass()
                                .getName());
                AuthSchemeOption sigv4AuthSchemeOption = AuthSchemeOption.builder().schemeId(AwsV4AuthScheme.SCHEME_ID)
                        .putSignerProperty(AwsV4HttpSigner.SERVICE_SIGNING_NAME, sigv4AuthScheme.signingName())
                        .putSignerProperty(AwsV4HttpSigner.REGION_NAME, sigv4AuthScheme.signingRegion())
                        .putSignerProperty(AwsV4HttpSigner.DOUBLE_URL_ENCODE, !sigv4AuthScheme.disableDoubleEncoding()).build();
                options.add(sigv4AuthSchemeOption);
                break;
            case "sigv4a":
                SigV4aAuthScheme sigv4aAuthScheme = Validate.isInstanceOf(SigV4aAuthScheme.class, authScheme,
                        "Expecting auth scheme of class SigV4AuthScheme, got instead object of class %s", authScheme.getClass()
                                .getName());
                RegionSet regionSet = RegionSet.create(sigv4aAuthScheme.signingRegionSet());
                AuthSchemeOption sigv4aAuthSchemeOption = AuthSchemeOption.builder().schemeId(AwsV4aAuthScheme.SCHEME_ID)
                        .putSignerProperty(AwsV4HttpSigner.SERVICE_SIGNING_NAME, sigv4aAuthScheme.signingName())
                        .putSignerProperty(AwsV4aHttpSigner.REGION_SET, regionSet)
                        .putSignerProperty(AwsV4HttpSigner.DOUBLE_URL_ENCODE, !sigv4aAuthScheme.disableDoubleEncoding()).build();
                options.add(sigv4aAuthSchemeOption);
                break;
            default:
                throw new IllegalArgumentException("Unknown auth scheme: " + name);
            }
        }
        return Collections.unmodifiableList(options);
    }

    private EventBridgeEndpointProvider endpointProvider(EventBridgeAuthSchemeParams params) {
        if (params instanceof EventBridgeEndpointResolverAware) {
            EventBridgeEndpointResolverAware endpointAwareParams = (EventBridgeEndpointResolverAware) params;
            EventBridgeEndpointProvider endpointProvider = endpointAwareParams.endpointProvider();
            if (endpointProvider != null) {
                return endpointProvider;
            }
        }
        return DELEGATE;
    }
}