django - Uploadify 3.1 尝试上传到 Amazon S3 (SignatureDoesNotMatch)

Question

这是一些背景

http://www.uploadify.com/documentation/

http://aws.amazon.com/articles/1434/

3 天的大部分时间里，我一直在努力将 Uploadify 上传到 Amazon S3。
这是我的第一次折磨 (HTTP 400 ERROR - MaxPostPreDataLengthExceeded) Uploadify 3.1

我最近通过在uploadify 调用中意识到我需要这个来修复它

"fileObjName": "文件",

但是现在出现了 403 错误。

签名不匹配
我们计算的请求签名与您提供的签名不匹配。检查您的 key 和签名方法。

这个 403 错误是我存在的祸根。从周围搜索来看，我似乎弄乱了我的政策文件中的条件。这是事实

在 html 页面上:

<p>
    <script type="text/javascript">
        $(document).ready(function(){
            $('#file').uploadify(
            {
                "formData": {"AWSAccessKeyId": "AKIAJOVJ2J3JX5Z6AIKA", "bucket": "my-stupid-bucket", "acl": "private", "key": "uploads/${filename}",
                "signature": "2I0HPQ2SoZOmhAUhYEb4nANFSCQ%253D",
                "policy": "eyJleHBpcmF0aW9uIjogIjIwMTItMDUtMDRUMjE6Mzk6MDJaIiwgImNvbmRpdGlvbnMiOiBbeyJidWNrZXQiOiAicmVrZWVwcy1yZWNlaXB0LXVzLTEiIH0sIFsic3RhcnRzLXdpdGgiLCAiJFVwbG9hZCIsICJTdWJtaXQgUXVlcnkiXSwgeyJhY2wiOiAicHJpdmF0ZSIgfSwgWyJzdGFydHMtd2l0aCIsICIka2V5IiwgInVwbG9hZHMvJHtmaWxlbmFtZX0iXSwgWyJzdGFydHMtd2l0aCIsICIkRmlsZW5hbWUiLCAiIl0sIFsic3RhcnRzLXdpdGgiLCAiJENvbnRlbnQtVHlwZSIsICIiXV19"},
                "fileObjName": "file",
                "uploader": "http://my-stupid-bucket.amazonaws.com",
                "swf": "/static/uploadify/uploadify.swf"
            }
        );
    });
    </script>

    <div id="file" class="uploadify" style="height: 30px; width: 120px; ">
    <object id="SWFUpload_0" type="application/x-shockwave-flash" data="/static/uploadify/uploadify.swf?preventswfcaching=1336228509904" width="120" height="30" class="swfupload" style="position: absolute; z-index: 1; "><param name="wmode" value="transparent"><param name="movie" value="/static/uploadify/uploadify.swf?preventswfcaching=1336228509904"><param name="quality" value="high"><param name="menu" value="false"><param name="allowScriptAccess" value="always"><param name="flashvars" value="movieName=SWFUpload_0&amp;uploadURL=http%3A%2F%2Fmy-stupid-bucket.amazonaws.com&amp;useQueryString=false&amp;requeueOnError=false&amp;httpSuccess=&amp;assumeSuccessTimeout=30&amp;params=AWSAccessKeyId%3DAKIAJOVJ2J3JX5Z6AIKA%26amp%3Bbucket%3Dmy-stupid-bucket%26amp%3Bacl%3Dprivate%26amp%3Bkey%3Duploads%252F%2524%257Bfilename%257D%26amp%3Bsignature%3D2I0HPQ2SoZOmhAUhYEb4nANFSCQ%2525253D%26amp%3Bpolicy%3DeyJleHBpcmF0aW9uIjogIjIwMTItMDUtMDRUMjE6Mzk6MDJaIiwgImNvbmRpdGlvbnMiOiBbeyJidWNrZXQiOiAicmVrZWVwcy1yZWNlaXB0LXVzLTEiIH0sIFsic3RhcnRzLXdpdGgiLCAiJFVwbG9hZCIsICJTdWJtaXQgUXVlcnkiXSwgeyJhY2wiOiAicHJpdmF0ZSIgfSwgWyJzdGFydHMtd2l0aCIsICIka2V5IiwgInVwbG9hZHMvJHtmaWxlbmFtZX0iXSwgWyJzdGFydHMtd2l0aCIsICIkRmlsZW5hbWUiLCAiIl0sIFsic3RhcnRzLXdpdGgiLCAiJENvbnRlbnQtVHlwZSIsICIiXV19&amp;filePostName=file&amp;fileTypes=*.*&amp;fileTypesDescription=All%20Files&amp;fileSizeLimit=0&amp;fileUploadLimit=0&amp;fileQueueLimit=999&amp;debugEnabled=false&amp;buttonImageURL=%2Fscratchpad%2F&amp;buttonWidth=120&amp;buttonHeight=30&amp;buttonText=&amp;buttonTextTopPadding=0&amp;buttonTextLeftPadding=0&amp;buttonTextStyle=color%3A%20%23000000%3B%20font-size%3A%2016pt%3B&amp;buttonAction=-110&amp;buttonDisabled=false&amp;buttonCursor=-2"></object>

    <div id="file-button" class="uploadify-button " style="height: 30px; line-height: 30px; width: 120px; ">
        <span class="uploadify-button-text">SELECT FILES</span>
    </div>
    </div>

    <div id="file-queue" class="uploadify-queue"></div>
</p>

政策文件:

{"expiration": "2012-05-04T21:39:03Z",
    "conditions": [
        {"bucket": "my-stupid-bucket" },
        ["starts-with", "$Upload", ""],
        {"acl": "private" },
        ["starts-with", "$key", "uploads/${filename}"]
        ["starts-with", "$Filename", ""],
        ["starts-with", "$Content-Type", ""]
    ]
}

请求:

POST / HTTP/1.1
Host: my-stupid-bucket.s3.amazonaws.com
User-Agent: Adobe Flash Player 11
Content-Length: 44914
x-flash-version: 11,2,202,235
Accept-Types: text/*
Content-Type: multipart/form-data; boundary=----------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0
Connection: close

------------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0
Content-Disposition: form-data; name="Filename"

yWxh1.jpg
------------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0
Content-Disposition: form-data; name="acl"

private
------------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0
Content-Disposition: form-data; name="signature"

OZBMi4oaUAz2p67wZYWo87qFVaQ%253D
------------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0
Content-Disposition: form-data; name="AWSAccessKeyId"

AKIAJOVJ2J3JX5Z6AIKA
------------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0
Content-Disposition: form-data; name="key"

uploads/${filename}
------------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0
Content-Disposition: form-data; name="bucket"

my-stupid-bucket
------------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0
Content-Disposition: form-data; name="policy"

eyJleHBpcmF0aW9uIjogIjIwMTItMDUtMDRUMjI6MTc6MDZaIiwgImNvbmRpdGlvbnMiOiBbeyJidWNrZXQiOiAicmVrZWVwcy1yZWNlaXB0LXVzLTEiIH0sIFsic3RhcnRzLXdpdGgiLCAiJFVwbG9hZCIsICIiXSwgeyJhY2wiOiAicHJpdmF0ZSIgfSwgWyJzdGFydHMtd2l0aCIsICIka2V5IiwgInVwbG9hZHMvJHtmaWxlbmFtZX0iXSwgWyJzdGFydHMtd2l0aCIsICIkRmlsZW5hbWUiLCAiIl0sIFsic3RhcnRzLXdpdGgiLCAiJENvbnRlbnQtVHlwZSIsICIiXV19
------------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0
Content-Disposition: form-data; name="file"; filename="yWxh1.jpg"
Content-Type: application/octet-stream


blah blah blah  <--- content stream stuff


------------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0
Content-Disposition: form-data; name="Upload"

Submit Query
------------KM7gL6cH2ei4ae0KM7Ij5KM7ae0ae0--

错误:

<Error>
    <Code>SignatureDoesNotMatch</Code>
    <Message>The request signature we calculated does not match the signature you provided. Check your key and signing method.</Message>
    <StringToSignBytes>65 79 4a 6c 65 48 42 70 63 6d 46 30 61 57 39 75 49 6a 6f 67 49 6a 49 77 4d 54 49 74 4d 44 55 74 4d 44 52 55 4d 6a 49 36 4d 54 63 36 4d 44 5a 61 49 69 77 67 49 6d 4e 76 62 6d 52 70 64 47 6c 76 62 6e 4d 69 4f 69 42 62 65 79 4a 69 64 57 4e 72 5a 58 51 69 4f 69 41 69 63 6d 56 72 5a 57 56 77 63 79 31 79 5a 57 4e 6c 61 58 42 30 4c 58 56 7a 4c 54 45 69 49 48 30 73 49 46 73 69 63 33 52 68 63 6e 52 7a 4c 58 64 70 64 47 67 69 4c 43 41 69 4a 46 56 77 62 47 39 68 5a 43 49 73 49 43 49 69 58 53 77 67 65 79 4a 68 59 32 77 69 4f 69 41 69 63 48 4a 70 64 6d 46 30 5a 53 49 67 66 53 77 67 57 79 4a 7a 64 47 46 79 64 48 4d 74 64 32 6c 30 61 43 49 73 49 43 49 6b 61 32 56 35 49 69 77 67 49 6e 56 77 62 47 39 68 5a 48 4d 76 4a 48 74 6d 61 57 78 6c 62 6d 46 74 5a 58 30 69 58 53 77 67 57 79 4a 7a 64 47 46 79 64 48 4d 74 64 32 6c 30 61 43 49 73 49 43 49 6b 52 6d 6c 73 5a 57 35 68 62 57 55 69 4c 43 41 69 49 6c 30 73 49 46 73 69 63 33 52 68 63 6e 52 7a 4c 58 64 70 64 47 67 69 4c 43 41 69 4a 45 4e 76 62 6e 52 6c 62 6e 51 74 56 48 6c 77 5a 53 49 73 49 43 49 69 58 56 31 39</StringToSignBytes>
    <RequestId>5C360649B9B97C0C</RequestId>
    <HostId>zT+9IaqTw/RAWwJH8KwCmGJZ6Wydq1/hg0v55TL8acHPX5ZMQvU2T4mbTF9wHD15</HostId>
    <SignatureProvided>OZBMi4oaUAz2p67wZYWo87qFVaQ%253D</SignatureProvided>
    <StringToSign>eyJleHBpcmF0aW9uIjogIjIwMTItMDUtMDRUMjI6MTc6MDZaIiwgImNvbmRpdGlvbnMiOiBbeyJidWNrZXQiOiAicmVrZWVwcy1yZWNlaXB0LXVzLTEiIH0sIFsic3RhcnRzLXdpdGgiLCAiJFVwbG9hZCIsICIiXSwgeyJhY2wiOiAicHJpdmF0ZSIgfSwgWyJzdGFydHMtd2l0aCIsICIka2V5IiwgInVwbG9hZHMvJHtmaWxlbmFtZX0iXSwgWyJzdGFydHMtd2l0aCIsICIkRmlsZW5hbWUiLCAiIl0sIFsic3RhcnRzLXdpdGgiLCAiJENvbnRlbnQtVHlwZSIsICIiXV19</StringToSign>
    <AWSAccessKeyId>AKIAJOVJ2J3JX5Z6AIKA</AWSAccessKeyId>
</Error>

在这一点上，它一定是我没有看到的东西。互联网世界中有人可以把我从软垫房间里救出来吗？

Answer 1

尝试删除

["starts-with", "$Upload", ""],
["starts-with", "$Content-Type", ""] 

从政策。表单数据必须与策略匹配。 (除了 $Filename 由 Flash 创建)

我已成功通过uploadify 3.1将文件上传到S3

这是我的代码:

 jQuery('#file_upload').uploadify({
            'formData'      : {
            'AWSAccessKeyId': '<?= AWS_ACCESS_KEY ?>',
            "acl": "private", 
            "key": "<?= $blog ?>/${filename}",
            "signature": "<?= $signature ?>",
            "policy": "<?= $policy ?>",
            "success_action_status": "201"
        },
        "fileObjName":"file",
        'swf'      : '/js/uploadify/uploadify.swf',
        'scriptAccess' : 'always',
        'uploader' : 'http://s3.amazonaws.com/<?= AWS_S3_BUCKET ?>',
        'buttonText' : 'Browse',
        'width' : 120,
        'height': 30,
        'multi' : false,
        'onUploadError' : function(file, errorCode, errorMsg, errorString) {
            alert('The file ' + file.name + ' could not be uploaded: ' + errorString);
        },
...

这是我的政策:

        return base64_encode(
        '{'.
            '"expiration": "'.gmdate('Y-m-d\TH:i:s\Z', time()+60*60*24+intval(@$data['timestamp'])).'",'.
            '"conditions": '.
            '['.
                '{"bucket": "'.$data['bucket'].'"},'.
                '{"acl": "private"},'.
                '{"success_action_status": "201"},'.
                '["starts-with","$key",""],'.
                '["starts-with","$Filename",""],'.
                '["content-length-range",0,5242880]'.
            ']'.
        '}'
    );

希望这会帮助你。