AWS S3 PreSignedUrl上传出错

我试图把文件上传到使用.net SDK S3存储，和我看到下面的错误响应PUTing由AWS提供的预先签订URL时：AWS S3 PreSignedUrl上传出错

你的水桶尝试访问必须使用指定的端点寻址

这里是.Net代码 - 我已经确认我的存储桶位于USWest2。

var amazonS3Client = new AmazonS3Client(accessKey, secretKey, RegionEndpoint.USWest2); 
    // Generate a pre-signed URL. 
    string folderName = "MyFolder"; 
    string key = "TestKey"; 
    GetPreSignedUrlRequest request = new GetPreSignedUrlRequest 
    { 
     BucketName = _bucketName, 
     Key = folderName + "/" + key, 
     Verb = HttpVerb.PUT, 
     Expires = DateTime.Now.AddMinutes(5) 
    }; 
    var uri = Uri(_amazonS3Client.GetPreSignedURL(request)); 

    // Upload a file using the pre-signed URL. 
    Stream stream = ... // This is set elsewhere, contains a data stream. 
    ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072; 
    HttpWebRequest httpRequest = WebRequest.Create(uri) as HttpWebRequest; 
    httpRequest.Method = "PUT"; 
    using (Stream dataStream = httpRequest.GetRequestStream()) 
    { 
     byte[] buffer = new byte[8000]; 
     int bytesRead = 0; 
     while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) > 0) 
     { 
     dataStream.Write(buffer, 0, bytesRead); 
     } 
    } 
    HttpWebResponse response = httpRequest.GetResponse() as HttpWebResponse; 
    if(response.StatusCode != HttpStatusCode.OK) 
     throw new Exception("Error uploading to AWS: " + response.StatusDescription);

来源

2016-09-30 Marty

这是最终造成的，因为该URL通过调用返回：

var uri = Uri(_amazonS3Client.GetPreSignedURL(request));

当时的格式：

https://s3-us-west-2.amazonaws.com/....

但AWS重定向这：

https://s3.amazonaws.com/....

通过使用后者的URL我的“预先签名的URL”的开始，这些文件现在可以正确上传。

来源

2016-09-30 18:23:01 Marty

AWS S3 PreSignedUrl上传出错

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