SignatureDoesNotMatch $cordovaFileTransfer

Question

我正在尝试将视频上传到之前使用$cordovaCapture 录制的Amazon s3。

捕获过程正常工作，作为响应，我得到了object：

[MediaFile]
  0: 
    MediaFileend: 0
    fullPath: "file:/storage/sdcard/DCIM/Camera/VID_20160919_144041.mp4"
    lastModified: null
    lastModifiedDate: 1474288843000
    localURL: "cdvfile://localhost/persistent/DCIM/Camera/VID_20160919_144041.mp4"
    name: "VID_20160919_144041.mp4"
    size: 17098
    start: 0
    type: "video/mp4"
    __proto__: utils.extend.F
  length: 1
  __proto__: Array[0]

然后，在我上传视频之前，我向我的服务器请求Authenticating URL，如下所示：

nodeJS

getSignedUrl: function (filename, type, callback) {
  if (filename) {
    AWS.config.update({
      accessKeyId: 'my_access_key',
      secretAccessKey: 'my_secret_access_key',
      region: 'my_region'
    });

    var s3 = new AWS.S3();
    s3.getSignedUrl('putObject', {Bucket: 'my_bucket', Key: 'uploads/' + filename, ContentType: type}, function (err, url) {
      if (err) {
        callback(err);
      } else {
        callback(url);
      }
    });
  } else {
    callback('Error');
  }
}

这给了我下一个端点：

https://s3-my_region.amazonaws.com/my_bucket/uploads/VID_20160919_144…=video%2Fmp4&Expires=1474289746&Signature=sF67ukPu3oELJXzsmAXCeeEJ%2FE4%3D

在我得到URL 指向我的上传后，问题就出现在这里：

拥有此代码：

var options = {
  httpMethod: "PUT",
  fileName: name,
  mimeType: type,
  chunkedMode: 'false',
  encodedURI: 'false',
  headers: {
    "Content-Type": type
  }
};

$cordovaFileTransfer.upload(url, videoPath, options)
  .then(function (result) {
    callback(result);
  }, function (err) {
    callback(err);
  }, function (progress) {
    p = progress;
});

这是我得到的错误：

http status: 403
Code: 1
description: <?xml version="1.0" encoding="UTF-8"?>
<Error>
  <Code>SignatureDoesNotMatch</Code>
  <Message>The request signature we calculated does not match the signature you provided. Check your key and signing method.</Message>
  <AWSAccessKeyId>my_access_key</AWSAccessKeyId>
  <StringToSign>
    PUT
    video/mp4
    1474291133
    /my_bucket/uploads/VID_20160919_150347.mp4
  </StringToSign>
  <SignatureProvided>
    nwLEVBOarxi7YwyB4hJ2op4j1ms%253D
  </SignatureProvided>
  <StringToSignBytes>
    50 55 54 0a 0a 76 69 64 65 6f 2f....
  </StringToSignBytes>
  <RequestId>CC29DD761826BAFF</RequestId>
  <HostId>
    OHTLyBaAa29X04msYXqwmvr1Mw90wnPmkxXeU7pTOb9pFwDuuRXDC3AdLNwVIoEHnoUEsceWn24=
  </HostId>
</Error>

听起来问题出在 header 周围，但并没有按预期工作。

同样，我直接在cordova-plugin-file-transfer 的文档之后在我的客户中尝试了第二个选项code：

var options = new FileUploadOptions(),
  ft = new FileTransfer();

options.httpMethod = "PUT";
options.fileName = name;
options.mimeType = type;
options.headers = {
  ContentType: type
};
options.chunkedMode = "false";
options.encodeURI = "false";

ft.upload(videoPath, url, callback, callback, options);

同样的响应错误。

在这里我也遇到了Content-Type 的问题。即使在文档中声明如下：

var headers = {
  "Content-Type": 'video/mp4'
};

options.headers = headers;

它返回给我下一个错误：

http status: 501
description: <?xml version="1.0" encoding="UTF-8"?>
<Error>
  <Code>NotImplemented</Code>
  <Message>
    A header you provided implies functionality that is not implemented
  </Message>
  <Header>Transfer-Encoding</Header>
  <RequestId>231F38AFFBB587C6</RequestId>
  .
  .
  .
</Error>

作为说明，我使它与 $http.post 一起工作，就像我在 this 的其他帖子中一样。

更新

对问题进行更多调查，使用 nodeJS 代码我也无法上传任何内容，所以我只是像这样修改了 S3 构造函数：

s3 = new AWS.S3({
  signatureVersion: 'v4',
  region: "us-west-2"
});

之后，像这样通过控制台检查curl：

curl -v -H "Content-Type: application/octet-stream" --upload-file "/Users/my_user/Desktop/VID_20160920_233443.mp4" "https://s3-us-west-2.amazonaws.com/my_bucket/uploads/VID_20160920_233443.mp4?Content-Type=video%2Fmp4&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJV3UP7LBEKPYMLGA%2F20160921%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20160921T103723Z&X-Amz-Expires=600&X-Amz-Signature=8463625a45237452280b3dc9cfd89366093f7b78f8c76598ba2240f06c7f20c9&X-Amz-SignedHeaders=host%3Bx-amz-acl&x-amz-acl=public-read"

响应成功：

*   Trying 54.231.176.22...
* Connected to s3-us-west-2.amazonaws.com (54.231.176.22) port 443 (#0)
* TLS 1.2 connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
* Server certificate: *.s3-us-west-2.amazonaws.com
* Server certificate: DigiCert Baltimore CA-2 G2
* Server certificate: Baltimore CyberTrust Root
> PUT /my_bucket/uploads/VID_20160920_233443.mp4?Content-Type=video%2Fmp4&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJV3UP7LBEKPYMLGA%2F20160921%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20160921T103723Z&X-Amz-Expires=600&X-Amz-Signature=8463625a45237452280b3dc9cfd89366093f7b78f8c76598ba2240f06c7f20c9&X-Amz-SignedHeaders=host%3Bx-amz-acl&x-amz-acl=public-read HTTP/1.1
> Host: s3-us-west-2.amazonaws.com
> User-Agent: curl/7.43.0
> Accept: */*
> Content-Type: application/octet-stream
> Content-Length: 18964
> Expect: 100-continue
> 
< HTTP/1.1 100 Continue
* We are completely uploaded and fine
< HTTP/1.1 200 OK
< x-amz-id-2: moDxOsEISsfqjCILaIsJtl3ncc7UeH4hNNISiJeuH46MrDrHEfVm9EKC5RRkORMilDEE5z7l8cI=
< x-amz-request-id: BC345E2AC71AC019
< Date: Wed, 21 Sep 2016 10:38:05 GMT
< x-amz-expiration: expiry-date="Fri, 23 Sep 2016 00:00:00 GMT", rule-id="Delete bad uploads after 1 day"
< ETag: "7688c487b1ea40c849fdb070cf736b28"
< Content-Length: 0
< Server: AmazonS3
< 
* Connection #0 to host s3-us-west-2.amazonaws.com left intact

像这样更改angular 代码：

var options = new FileUploadOptions(),
    ft = new FileTransfer();

options.httpMethod = "PUT";
options.fileKey = "file";
options.fileName = name;
options.mimeType = type;
options.chunkedMode = false;

options.headers = {
  "Content-Type": type,
  "x-amz-acl": 'public-read'
};

ft.upload(videoPath, url, callback(null), callback, options);

问题还是来了：

An error has occurred: Code = 1
upload error source cdvfile://localhost/persistent/DCIM/Camera/VID_20160921_122323.mp4
upload error target https://s3-us-west-2.amazonaws.com/my_bucket/uploads/VID_20160921_122…9e365af3f771c5d&X-Amz-SignedHeaders=host%3Bx-amz-acl&x-amz-acl=public-read
http status: 501
description: <?xml version="1.0" encoding="UTF-8"?>
<Error><Code>NotImplemented</Code><Message>A header you provided implies functionality that is not implemented</Message><Header>Transfer-Encoding</Header><RequestId>D646593FD109C0F8</RequestId><HostId>wVmGWPAAWdmSXdq5N/eO7ihqHk0GoMlXNe6k9sAyyEz55Q4k2gGgkgsgyXkh8xsxUDlmzQdAIPQ=</HostId></Error>

在这里我包括我的FileUploadOptions()：

chunkedMode: false
fileKey: "file"
fileName: "VID_20160921_125152.mp4"
headers: Object
  Content-Type: "video/mp4"
  x-amz-acl: "public-read"
  __proto__: Object
httpMethod: "PUT"
mimeType: "video/mp4"
params: null

更新 2

直接尝试使用来自ngCordova 的$cordovaFileTransfer 插件，我得到另一个错误：

"<?xml version="1.0" encoding="UTF-8"?>
<Error><Code>AuthorizationQueryParametersError</Code><Message>Error parsing the X-Amz-Credential parameter; the Credential is mal-formed; expecting "&lt;YOUR-AKID&gt;/YYYYMMDD/REGION/SERVICE/aws4_request".</Message><RequestId>C863350E96804F5C</RequestId><HostId>7TmXBDlsGNvDmLFKgLePTMAg+Onf8y1ZPTEWmbdHPAyWHFIdt1+5J7U3H8Ygnf3sebMRpRNdxXA=</HostId></Error>"

更新 3

为了尽可能澄清一切，我部署了一个 github，其中包含我正在工作的所有后端/前端。

再次感谢。

更新 4

感谢 daserge 的帮助，我可以得到我的 PUT 的标题。我在下面粘贴结果：

HTTP/1.1 400 Bad Request
x-amz-request-id    3F686CFD09B5C6DD
x-amz-id-2  KDrmvzhnrWfLB+Tdttg88MaPVOp2LOBAhwEqiBR0XdMpaje3lRsiM6mHfjv5ULzD7GweiT9C2T0=
Content-Type    application/xml
Date    Sat, 24 Sep 2016 17:00:03 GMT
Server  AmazonS3
Transfer-Encoding   chunked
Proxy-Connection    Close

PUT /my_bucket/uploads/VID_20160924_190000.mp4?Content-Type=video%252Fmp4&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJV3UP7LBEKPYMLGA%252F20160924%252Fus-west-2%252Fs3%252Faws4_request&X-Amz-Date=20160924T170002Z&X-Amz-Expires=600&X-Amz-Signature=ca3c992290bdf51e14bab6d67e4c520b280368bdd2a0274b552dc3e975f55c9d&X-Amz-SignedHeaders=host%253Bx-amz-acl&x-amz-acl=public-read HTTP/1.1
Content-Type    application/octet-stream
Content-Length  56116
User-Agent  Dalvik/2.1.0 (Linux; U; Android 5.0; Aquaris E5 HD Build/LRX21M)
Host    s3-us-west-2.amazonaws.com
Connection  Keep-Alive
Accept-Encoding gzip

然后我意识到有两个参数错误：

Content-Type: application/xml
Transfer-Encoding: chunked

同样，我已经意识到编码。它应该是%2F，它就像%252F。

这很奇怪，因为我使用参数的方式似乎是正确的：

options = {
  fileKey: 'file',
  fileName: name,
  chunkedMode: false,
  httpMethod: 'PUT',
  mimeType: "application/octet-stream",
  headers: {
    "Content-Type": "application/octet-stream"
  }
};

$cordovaFileTransfer.upload(server, filePath, options)
  .then(function (result) {
    console.log(result);
  }, function (err) {
    console.log(err);
  }, function (progress) {
    console.log(progress);
  });

另外，感谢 bvakiti，我意识到有一条错误消息，因为我将视频发送到 https。我正在尝试http。

Answer 1

您从AWS 获得的端点与您使用$cordovaFileTransfer 的方式之间似乎存在冲突。

当您在服务器中获取带有s3.getSignedUrl 的端点时，只有响应 URL 的参数被编码（基本 URL 保持未编码）。

当您使用 $cordovaFileTransfer 时，该函数再次对参数进行编码，这就是为什么您会看到 %252F 与 // 匹配。

有 3 个选项：

• 相反，在您调用 $cordovaFileTransfer 之前，解码参数

  var host = server.split('?')[0] + '?' + decodeURIComponent(server.split('?')[1]);
  

• 使用options.params，如documentation中所述

其他帮助 cmets 中建议的选项 encodeURI: false 对我不起作用

希望对你有帮助。

Answer 2

我猜想从 AWS 派生访问密钥存在一些问题。

尝试使用这个：

function getSignatureKey(key, dateStamp, regionName, serviceName) {
    var kDate= Crypto.HMAC(Crypto.SHA256, dateStamp, "AWS4" + key, { asBytes: true})
    var kRegion= Crypto.HMAC(Crypto.SHA256, regionName, kDate, { asBytes: true });
    var kService=Crypto.HMAC(Crypto.SHA256, serviceName, kRegion, { asBytes: true });
    var kSigning= Crypto.HMAC(Crypto.SHA256, "aws4_request", kService, { asBytes: true });

    return kSigning;
}

http://docs.aws.amazon.com/general/latest/gr/signature-v4-examples.html#signature-v4-examples-jscript

如果有帮助，我还找到了一个旧博客：

http://coenraets.org/blog/2013/09/how-to-upload-pictures-from-a-phonegap-app-to-amazon-s3/

Answer 3

使用空正文/空内容长度上传可能会出现问题

看看这个线程： https://github.com/aws/aws-sdk-js/issues/15

Answer 4

更新您的 AWS 存储桶配置后，在创建 S3 对象时不要传递参数。试试下面的代码。

   // make managed upload
    var upload = new AWS.S3.ManagedUpload({
        params: metadata
    });

    var s3Head = new AWS.S3();

在 routes/endpoints.js 中进行更改。

Answer 5

我在 fileTransfer 期间遇到错误代码 1 的问题，并将 html 元素作为响应。

问题在于 SSL 连接。尝试在服务器 url 中提供 http 而不是 https，它会正常工作。 但是当涉及到身份验证时，您将在后端发生变化。 cordovaFileTransfer 没有问题。

希望这会有所帮助。