使用非默认权限将文件上传到Amazon S3

Question

我试图使用.NET SDK将文件上传到Amazon S3。上传工作正常，除了它将default permission应用于上传的文件，这是'私人'。

我想将上传文件的权限设置为“BucketOwnerFullControl”。

下面是我的代码，我不太清楚我需要怎么做才能让它工作。

static string accessKeyID = ""; 
    static string secretAccessKey = ""; 
    static string existingBucketName = "bucket"; 

    static void Main(string[] args) 
    { 
     NameValueCollection appConfig = ConfigurationManager.AppSettings; 
     accessKeyID = appConfig["accesskey"]; 
     secretAccessKey = appConfig["secretkey"]; 

     string[] files = Directory.GetFiles("C:\\amazontestdirectory"); 

      foreach (string fileName in files) 
      { 
       try 
       { 
        TransferUtility fileTransferUtility = new TransferUtility(accessKeyID, secretAccessKey); 

        // Upload a file, file name is used as the object key name. 
        fileTransferUtility.Upload(fileName, existingBucketName); 
       } 
       catch (AmazonS3Exception s3Exception) 
       { 
        Console.WriteLine("AWS error: " + s3Exception.Message, s3Exception.InnerException); 

        //Open a file for writing 
        string errorOutputFileName = System.IO.Path.GetFullPath("C:\\amazontestdirectory\\logs\\errorLog.txt"); 

        //Get a StreamWriter class that can be used to write to the file 
        if (File.Exists(errorOutputFileName)) 
        { 
         StreamWriter objStreamWriter; 
         objStreamWriter = File.AppendText(errorOutputFileName); 
         objStreamWriter.WriteLine(); 
         objStreamWriter.WriteLine(DateTime.Now.ToString() + " - AWS error: " + s3Exception.Message, s3Exception.InnerException); 

         //Close the stream 
         objStreamWriter.Close(); 
        } 
       } 
      } 
     } 

Answer 1

要在使用TransferUtility时设置权限，您需要使用TransferUtilityUploadRequest中的上载覆盖。这使您可以在上传文件时设置更高级的选项。

TransferUtilityUploadRequest request = new TransferUtilityUploadRequest() 
{ 
    BucketName = existingBucketName, 
    FilePath = fileName, 
    CannedACL = S3CannedACL.BucketOwnerFullControl 
}; 

// Upload a file, file name is used as the object key name. 
fileTransferUtility.Upload(request);