使用 TIP 插件访问 Amazon Web Services 服务

要在 适用于 Java 的 Amazon SDK 项目中使用 TIP 插件，您需要在项目的 pom.xml 文件中将其声明为依赖项。

<dependency>
<groupId>software.amazon.awsidentity.trustedIdentityPropagation</groupId>
<artifactId>aws-sdk-java-trustedIdentityPropagation-java-plugin</artifactId>
   <version>2.0.0</version>
</dependency>

在源代码中，包括 software.amazon.awssdk.trustedidentitypropagation 的必需软件包语句。

以下示例演示了创建可信身份传播插件实例并将其添加到服务客户端的两种方式。这两个示例都使用 Amazon S3 服务并利用 S3AccessGrantsPlugin 来管理用户特定权限，不过这些示例可以应用于任何支持可信身份传播（TIP）的 Amazon Web Services 服务。

选项 1：构建并传递 OIDC 和 STS 客户端

SsoOidcClient oidcClient = SsoOidcClient.builder()
    .region(Region.US_EAST_1)
    .credentialsProvider(credentialsProvider).build();

StsClient stsClient = StsClient.builder()
    .region(Region.US_EAST_1)
    .credentialsProvider(credentialsProvider).build();

TrustedIdentityPropagationPlugin trustedIdentityPropagationPlugin = TrustedIdentityPropagationPlugin.builder()
        .webTokenProvider(() -> webToken)
        .applicationArn(idcApplicationArn)
        .accessRoleArn(accessRoleArn)
        .ssoOidcClient(oidcClient)
        .stsClient(stsClient)
        .build();

S3AccessGrantsPlugin accessGrantsPlugin = S3AccessGrantsPlugin.builder()
        .build();

S3Client s3Client =
        S3Client.builder().region(Region.US_EAST_1)
                .crossRegionAccessEnabled(true)
                .addPlugin(trustedIdentityPropagationPlugin)
                .addPlugin(accessGrantsPlugin)
                .build();

final var resp = s3Client.getObject(GetObjectRequest.builder()
        .key("path/to/object/fileName")
        .bucket("bucketName")
        .build());

选项 2：将 applicationRoleArn 传递给插件并推迟客户端创建

TrustedIdentityPropagationPlugin trustedIdentityPropagationPlugin = TrustedIdentityPropagationPlugin.builder()
        .webTokenProvider(() -> webToken)
        .applicationArn(idcApplicationArn)
        .accessRoleArn(accessRoleArn)
        .applicationRoleArn(applicationRoleArn)
        .build();

S3AccessGrantsPlugin accessGrantsPlugin = S3AccessGrantsPlugin.builder()
        .build();

S3Client s3Client =
        S3Client.builder().region(Region.US_EAST_1)
                .crossRegionAccessEnabled(true)
                .addPlugin(trustedIdentityPropagationPlugin)
                .addPlugin(accessGrantsPlugin)
                .build();

final var resp = s3Client.getObject(GetObjectRequest.builder()
        .key("path/to/object/fileName")
        .bucket("bucketName")
        .build());

有关更多详细信息和源代码，请参阅 GitHub 上的 trusted-identity-propagation-java。

运行以下命令，以将 TIP 身份验证插件包安装到 适用于 JavaScript 的 Amazon SDK 项目中：

$  npm i @aws-sdk-extension/trusted-identity-propagation

最终的 package.json 应包含与以下类似的依赖项：

  "dependencies": {
"@aws-sdk-extension/trusted-identity-propagation": "^2.0.0"
  },

在源代码中，导入所需的 TrustedIdentityPropagationExtension 依赖项。

以下示例演示了创建可信身份传播插件实例并将其添加到服务客户端的两种方式。这两个示例都使用 Amazon S3 服务并利用 Amazon S3 访问权限管控来管理用户特定权限，不过这些示例可以应用于任何支持可信身份传播（TIP）的 Amazon Web Services 服务。

选项 1：构建并传递 OIDC 和 STS 客户端

import { S3Client, GetObjectCommand } from "@aws-sdk/client-s3";
import { S3ControlClient, GetDataAccessCommand } from "@aws-sdk/client-s3-control";
import { TrustedIdentityPropagationExtension } from "@aws-sdk-extension/trusted-identity-propagation";

const s3ControlClient = new S3ControlClient({
    region: "us-east-1",
    extensions: [
        TrustedIdentityPropagationExtension.create({
            webTokenProvider: async () => {
                return 'ID_TOKEN_FROM_YOUR_IDENTITY_PROVIDER';
            },
            ssoOidcClient: customOidcClient,
            stsClient: customStsClient,
            accessRoleArn: accessRoleArn,
            applicationArn: applicationArn,
        }),
    ],
});

const getDataAccessParams = {
  Target: "S3_URI_PATH",
  Permission: "READ",
  AccountId: ACCOUNT_ID,
  InstanceArn: S3_ACCESS_GRANTS_ARN,
  TargetType: "Object",
};

try {
  const command = new GetDataAccessCommand(getDataAccessParams);
  const response = await s3ControlClient.send(command);

  const credentials = response.Credentials;

  // Create a new S3 client with the temporary credentials
  const temporaryS3Client = new S3Client({
    region: "us-east-1",
    credentials: {
      accessKeyId: credentials.AccessKeyId,
      secretAccessKey: credentials.SecretAccessKey,
      sessionToken: credentials.SessionToken,
    },
  });

  // Use the temporary S3 client to perform the operation
  const s3Params = {
    Bucket: "BUCKET_NAME",
    Key: "S3_OBJECT_KEY",
  };
  const getObjectCommand = new GetObjectCommand(s3Params);
  const s3Object = await temporaryS3Client.send(getObjectCommand);

  const fileContent = await s3Object.Body.transformToString();

  // Process the S3 object data
  console.log("Successfully retrieved S3 object:", fileContent);
} catch (error) {
  console.error("Error accessing S3 data:", error);
}

选项 2：将 applicationRoleArn 传递给插件并推迟客户端创建

import { S3Client, GetObjectCommand } from "@aws-sdk/client-s3";
import { S3ControlClient, GetDataAccessCommand } from "@aws-sdk/client-s3-control";
import { TrustedIdentityPropagationExtension } from "@aws-sdk-extension/trusted-identity-propagation";

const s3ControlClient = new S3ControlClient({
    region: "us-east-1",
    extensions: [
        TrustedIdentityPropagationExtension.create({
            webTokenProvider: async () => {
                return 'ID_TOKEN_FROM_YOUR_IDENTITY_PROVIDER';
            },
            accessRoleArn: accessRoleArn,
            applicationRoleArn: applicationRoleArn,
            applicationArn: applicationArn,
        }),
    ],
});

// Same S3 AccessGrants workflow as Option 1
const getDataAccessParams = {
  Target: "S3_URI_PATH",
  Permission: "READ",
  AccountId: ACCOUNT_ID,
  InstanceArn: S3_ACCESS_GRANTS_ARN,
  TargetType: "Object",
};

try {
  const command = new GetDataAccessCommand(getDataAccessParams);
  const response = await s3ControlClient.send(command);

  const credentials = response.Credentials;

  const temporaryS3Client = new S3Client({
    region: "us-east-1",
    credentials: {
      accessKeyId: credentials.AccessKeyId,
      secretAccessKey: credentials.SecretAccessKey,
      sessionToken: credentials.SessionToken,
    },
  });

  const s3Params = {
    Bucket: "BUCKET_NAME",
    Key: "S3_OBJECT_KEY",
  };
  const getObjectCommand = new GetObjectCommand(s3Params);
  const s3Object = await temporaryS3Client.send(getObjectCommand);

  const fileContent = await s3Object.Body.transformToString();

  console.log("Successfully retrieved S3 object:", fileContent);
} catch (error) {
  console.error("Error accessing S3 data:", error);
}

有关更多详细信息和源代码，请参阅 GitHub 上的 trusted-identity-propagation-js。