2014-12-07 66 views
0

我有一个nodejs应用程序,它正在生成一个用于将文件上传到AWS S3的签名url。我想使用这个签名的url从C#winforms应用程序上传一个文件到S3。无法使用nodejs生成签名url来上传到s3

在我的C#代码,当我用标识的URL,我从我的NodeJS服务器获取上传文件到S3,我得到这个错误:

The connection was forcibly closed by the remote host 

但是,如果使用C#用于生成签署网址,文件成功上传。我尝试了编码和解码我从nodejs获得的url,但没有运气。 C#和nodejs服务器都在我的本地主机上工作,所以应该没有时差。

由C#生成

示例URL(工作)和由的NodeJS(不工作):

// c# generated, works 
https://mybucket.s3-eu-west-1.amazonaws.com/folder/547dac915711b69f18241920.flv?AWSAccessKeyId=AKIAILNOHZMPD62PBJGQ&Expires=1417970769&Signature=8ePjR1%2FrQb35YU2AR%2B6480vjiuM%3D 

// nodejs generated, does not work 
https://mybucket.s3-eu-west-1.amazonaws.com/folder/547dac915711b69f18241920.flv?AWSAccessKeyId=AKIAILNOHZMPD62PBJGQ&Expires=1417967527&Signature=rIbJ2zuknWwFG92Lh7VGAhqYE0I%3D 

的的NodeJS代码生成所述签名的网址:

// this signed url does not work 
var params = { Bucket: bucket, Key: folder + "/" + filename, Expires: 3600 }; 
s3.getSignedUrl('getObject', params, callback); 

C#代码生成所述签名网址:

// this signed url works 
GetPreSignedUrlRequest request = new GetPreSignedUrlRequest 
{ 
    BucketName = "mybucket", 
    Key = "folder/" + _id + ".flv", 
    Verb = HttpVerb.PUT, 
    Expires = DateTime.Now.AddMinutes(5) 
}; 

string url = null; 
url = s3Client.GetPreSignedURL(request); 

C#代码上传文件:

HttpWebRequest httpRequest = WebRequest.Create(url) as HttpWebRequest; 
httpRequest.Method = "PUT"; 
using (Stream dataStream = httpRequest.GetRequestStream()) 
{ 
    byte[] buffer = new byte[8000]; 
    using (FileStream fileStream = new FileStream(filename, FileMode.Open, FileAccess.Read)) 
    { 
     int bytesRead = 0; 
     while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) > 0) 
     { 
      dataStream.Write(buffer, 0, bytesRead); 
     } 
    } 
} 

HttpWebResponse response = httpRequest.GetResponse() as HttpWebResponse; 

为什么我的nodejs生成的url不起作用,但我的C#生成的url的作品?我如何让我的nodejs生成签名url工作?

回答

1

我解决了这个问题。问题是在这条线的代码的NodeJS:

s3.getSignedUrl('getObject', params, callback); 

这应该是

s3.getSignedUrl('putObject', params, callback); 

代替。