AWS S3-策略条件失败-eq密钥 [英] AWS S3- Policy Condition Failed- eq key

问题描述

我正在从网站上将文件上传到s3.我从使用aws sdk的nodejs服务器中获取了所有需要的信息.我的问题是它生成了一个密钥，必须在我的表单中使用它，如下所示:

I am working on uploading files to s3 from the website. I get all needed information from my nodejs server which uses aws sdk. The problem I have is that it generates a key which I have to use in my form like this:

   <input type="hidden" name="key" value="xxx" /><br />

它可以工作，但是我上传的每个文件都具有密钥"的名称.如果我将其更改为这样:

And it works, but every file I upload has the name of the 'key'. If I change it to sth like this:

   <input type="hidden" name="key" value="xxx/name.jpg" /><br />

它给我一个错误:

Invalid according to Policy: Policy Condition failed: ["eq", "$key", "xxx"]

以下是我制定政策的条件:

Here are my conditions to generate the policy:

Conditions: [
        ['starts-with', '$key', ''],
        ["starts-with", "$Content-Type", "image/"],
        {"x-amz-server-side-encryption": "AES256"}
      ]

如何设置文件名?

推荐答案

我解决了.问题是在传递此函数的参数对象中:

I solved it. The problem was that in parameters object which is passed this function:

s3.createPresignedPost(params, function(err, data)

我有参数字段，其中包含键:

I had parameter Fields which included key:

  Fields: {
    key: key,
  },

只需删除它即可解决问题

Simply deleting it fixed the problem

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