没有文件IO的AWS凭证

Question

我有一个在框架内运行的应用程序。该框架不允许FILE IO并引发各种安全异常，这些异常会杀死我的应用程序。

我可以通过系统属性传递accessKeyId和secretAccessKey，并且它们正确传递。

我的问题是，无论我做什么，AWS开发工具包中的默认设置始终总是首先尝试通过文件IO获取证书（查找其〜/ .aws / credentials），从而杀死所有内容。

反正有没有禁止该文件的尝试？或另一种方式？

我正在使用AWS Java SDK2。奇怪的是，SDK1似乎可以正常工作，但是它太大了，因为它无法像SDK2那样分解为模块。

        private SqsClient initialiseClient() {
        System.out.println(System.getProperty("aws.accessKeyId")); // this works
        System.out.println(System.getProperty("aws.secretAccessKey"));  // this works

        return SqsClient.builder()
                .credentialsProvider(SystemPropertyCredentialsProvider.create())
                .region(Region.EU_WEST_1)
                .build());
        }

堆栈跟踪：

    Exception in thread "Thread-28" java.security.AccessControlException: access denied ("java.io.FilePermission" "C:\Users\username\.aws\credentials" "read")
    at java.security.AccessControlContext.checkPermission(AccessControlContext.java:472)
    at java.security.AccessController.checkPermission(AccessController.java:884)
    at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
    at java.lang.SecurityManager.checkRead(SecurityManager.java:888)
    at sun.nio.fs.WindowsPath.checkRead(WindowsPath.java:792)
    at sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:49)
    at sun.nio.fs.WindowsFileAttributeViews$Basic.readAttributes(WindowsFileAttributeViews.java:38)
    at sun.nio.fs.WindowsFileSystemProvider.readAttributes(WindowsFileSystemProvider.java:193)
    at java.nio.file.Files.readAttributes(Files.java:1737)
    at java.nio.file.Files.isRegularFile(Files.java:2229)
    at software.amazon.awssdk.profiles.ProfileFileLocation.lambda$resolveIfExists$1(ProfileFileLocation.java:128)
    at java.util.Optional.filter(Optional.java:178)
    at software.amazon.awssdk.profiles.ProfileFileLocation.resolveIfExists(ProfileFileLocation.java:128)
    at software.amazon.awssdk.profiles.ProfileFileLocation.credentialsFileLocation(ProfileFileLocation.java:78)
    at software.amazon.awssdk.profiles.ProfileFile.addCredentialsFile(ProfileFile.java:138)
    at software.amazon.awssdk.utils.builder.SdkBuilder.applyMutation(SdkBuilder.java:61)
    at software.amazon.awssdk.profiles.ProfileFile.defaultProfileFile(ProfileFile.java:90)
    at software.amazon.awssdk.core.client.builder.SdkDefaultClientBuilder.mergeGlobalDefaults(SdkDefaultClientBuilder.java:196)
    at software.amazon.awssdk.core.client.builder.SdkDefaultClientBuilder.syncClientConfiguration(SdkDefaultClientBuilder.java:149)
    at software.amazon.awssdk.services.sqs.DefaultSqsClientBuilder.buildClient(DefaultSqsClientBuilder.java:27)
    at software.amazon.awssdk.services.sqs.DefaultSqsClientBuilder.buildClient(DefaultSqsClientBuilder.java:22)
    at software.amazon.awssdk.core.client.builder.SdkDefaultClientBuilder.build(SdkDefaultClientBuilder.java:124)
    at net.something.fdDataExchange.messageHandlers.QMessageHandlerV2.lambda$initialiseClient$0(QMessageHandlerV2.java:66)
    at java.security.AccessController.doPrivileged(Native Method)
    at net.something.fdDataExchange.messageHandlers.QMessageHandlerV2.initialiseClient(QMessageHandlerV2.java:63)
    at net.something.fdDataExchange.messageHandlers.QMessageHandlerV2.connect(QMessageHandlerV2.java:52)
    at net.something.fdDataExchange.messageHandlers.QMessageHandlerV2.<init>(QMessageHandlerV2.java:47)
    at net.something.fdDataExchange.MessageHandler.receiveDirectMsg(MessageHandler.java:28)
    at net.something.fdDataExchange.commandProcessors.QCommandProcessor.run(QCommandProcessor.java:19)
    at java.lang.Thread.run(Thread.java:748)

Answer 1

您可以尝试实现自定义提供程序，而不使用系统凭据提供程序。这是一个连接到S3的小示例，但适用于AWS的任何服务。这是供您参考的链接：https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/credentials.html

BasicAWSCredentials awsCreds = new BasicAWSCredentials("access_key_id", "secret_key_id");
AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                        .withCredentials(new AWSStaticCredentialsProvider(awsCreds))
                        .build();

对于SDK2，也许应该可以使用：

为显式提供凭证给AWS客户端

实例化一个提供AwsCredentials接口的类，例如AwsSessionCredentials。向其提供用于连接的AWS访问密钥和秘密密钥。

使用AwsCredentials对象创建一个StaticCredentialsProvider。

使用StaticCredentialsProvider配置客户端构建器并构建客户端。

以下示例创建一个使用您提供的凭据的新服务客户端：

AwsSessionCredentials awsCreds = AwsSessionCredentials.create(
    "your_access_key_id_here",
    "your_secret_key_id_here",
    "your_session_token_here");

S3Client s32 = S3Client.builder()
                       .credentialsProvider(StaticCredentialsProvider.create(awsCreds))
                       .build();

来源：https://docs.aws.amazon.com/sdk-for-java/v2/developer-guide/credentials.html

希望有帮助！