经典ASP亚马逊s3休闲授权

我很困惑我在这里做错什么

<script language="javascript" runat="server">
  function GMTNow(){return new Date().toGMTString()}
</script>
<%

Const AWS_BUCKETNAME = "uk-bucketname"
Const AWS_ACCESSKEY = "GOES HERE"
Const AWS_SECRETKEY = "SECRET"
LocalFile = Server.Mappath("/test.jpg")

Dim sRemoteFilePath
    sRemoteFilePath = "/files/test.jpg" 'Remote Path,note that AWS paths (in fact they aren't real paths) are strictly case sensitive

Dim strNow
    strNow = GMTNow() ' GMT Date String

Dim StringToSign
    StringToSign = Replace("PUTnnimage/jpegnnx-amz-date:" & strNow & "n/"& AWS_BUCKETNAME & sRemoteFilePath,"n",vbLf)

Dim Signature
    Signature = BytesToBase64(HMACSHA1(AWS_SECRETKEY,StringToSign))

Dim Authorization
    Authorization = "AWS " & AWS_ACCESSKEY & ":" & Signature

Dim AWSBucketUrl
    AWSBucketUrl = "http://s3.amazonaws.com/" & AWS_BUCKETNAME

With Server.CreateObject("Microsoft.XMLHTTP")
    .open "PUT",AWSBucketUrl & sRemoteFilePath,False
    .setRequestHeader "Authorization",Authorization
    .setRequestHeader "Content-Type","image/jpeg"
    .setRequestHeader "Host",AWS_BUCKETNAME & ".s3.amazonaws.com"  
    .setRequestHeader "x-amz-date",strNow
    .send GetBytes(LocalFile) 'Get bytes of local file and send
    If .status = 200 Then ' successful
        Response.Write "<a href="& AWSBucketUrl & sRemoteFilePath &" target=_blank>Uploaded File</a>"
    Else ' an error ocurred,consider xml string of error details
        Response.ContentType = "text/xml"
        Response.Write .responseText
    End If
End With

Function GetBytes(sPath)
    dim fs,f
set fs=Server.CreateObject("Scripting.FileSystemObject")
set f=fs.GetFile(sPath)
GetBytes = f.Size
set f=nothing
set fs=nothing
End Function

Function BytesToBase64(varBytes)
    With Server.CreateObject("MSXML2.DomDocument").CreateElement("b64")
        .dataType = "bin.base64"
        .nodeTypedValue = varBytes
        BytesToBase64 = .Text
    End With
End Function

Function HMACSHA1(varKey,varValue)
    With Server.CreateObject("System.Security.Cryptography.HMACSHA1")
        .Key = UTF8Bytes(varKey)
        HMACSHA1 = .ComputeHash_2(UTF8Bytes(varValue))
    End With
End Function

Function UTF8Bytes(varStr)
    With Server.CreateObject("System.Text.UTF8Encoding")
        UTF8Bytes = .GetBytes_4(varStr)
    End With
End Function
%>

现在得到错误.

msxml3.dll error '800c0008'

The download of the specified resource has failed.

/s3.asp,line 39

解决方法

格式：

StringToSign = HTTP-Verb + "n" +
    Content-MD5 + "n" +
    Content-Type + "n" +
    Date + "n" +
    CanonicalizedAmzHeaders +
    CanonicalizedResource;

生成有符号的字符串：

Signature = Base64( HMAC-SHA1( YourSecretAccessKeyID,UTF-8-Encoding-Of( StringToSign ) ) );

传递授权标题：

Authorization = "AWS" + " " + AWSAccessKeyId + ":" + Signature;

不幸的是,你会播放字节到字节,因为没有任何SDK发布经典的asp.所以,应该通过阅读整个页面http://docs.amazonwebservices.com/AmazonS3/latest/dev/RESTAuthentication.html来了解

对于字符串进行签名,您可以在上面看到格式,API有三个本机头. Content-Type,Content-MD5和Date.这些标头必须存在于字符串中,即使您的请求没有标头名称也不是空的,只是其值.有一个例外,如果请求中已经存在x-amz-date头,则字符串中的Date标头必须为空.然后,如果请求具有规范的亚马逊标头,则应将其添加为键值对,如x-amz-headername：value.但是,还有一个例外需要考虑多个头.多个标题应该组合成一个标题,并用逗号分隔.

正确

x-amz-headername:value1,value2

错误

x-amz-headername:value1n
x-amz-headername:value2

最重要的是,标头必须按其字符串中的组的升序顺序进行签名.首先,按照升序排列保留标题,然后按规则标题升序.

我建议使用DomDocument功能来生成Base64编码的字符串.
另外,除了Windows脚本组件(.wsc文件)之外,您可以使用.Net的Interops(如System.Security.Cryptography)来更有效地利用System.Text的功能生成密钥哈希.所有这些互操作性在当今的IIS Web服务器中都可用.
所以,作为一个例子,我写下面的脚本只是发送一个文件到你指定的桶.考虑和测试
假设本地文件名为myimage.jpg,并将以相同的名称上传到存储桶的根目录.

<script language="javascript" runat="server">
function GMTNow(){return new Date().toGMTString()}
</script>

<%
Const AWS_BUCKETNAME = "uk-bucketname"
Const AWS_ACCESSKEY = "GOES HERE"
Const AWS_SECRETKEY = "SECRET"

LocalFile = Server.Mappath("/test.jpg")

Dim sRemoteFilePath
    sRemoteFilePath = "/files/test.jpg" 'Remote Path,StringToSign))

Dim Authorization
    Authorization = "AWS " & AWS_ACCESSKEY & ":" & Signature

Dim AWSBucketUrl
    AWSBucketUrl = "https://" & AWS_BUCKETNAME & ".s3.amazonaws.com"

With Server.CreateObject("MSXML2.ServerXMLHTTP.6.0")
    .open "PUT",consider xml string of error details
        Response.ContentType = "text/xml"
        Response.Write .responseText
    End If
End With

Function GetBytes(sPath)
    With Server.CreateObject("Adodb.Stream")
        .Type = 1 ' adTypeBinary
        .Open
        .LoadFromFile sPath
        .Position = 0
        GetBytes = .Read
        .Close
    End With
End Function

Function BytesToBase64(varBytes)
    With Server.CreateObject("MSXML2.DomDocument").CreateElement("b64")
        .dataType = "bin.base64"
        .nodeTypedValue = varBytes
        BytesToBase64 = .Text
    End With
End Function

Function HMACSHA1(varKey,varValue)
    With Server.CreateObject("System.Security.Cryptography.HMACSHA1")
        .Key = UTF8Bytes(varKey)
        HMACSHA1 = .ComputeHash_2(UTF8Bytes(varValue))
    End With
End Function

Function UTF8Bytes(varStr)
    With Server.CreateObject("System.Text.UTF8Encoding")
        UTF8Bytes = .GetBytes_4(varStr)
    End With
End Function
%>

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