ruby-on-rails - S3 temporary signed url with custom header without modifying object metadata to disk

Question

I have a bucket with arbitrarily named files and a ruby script that generates a signed URL that expires in 2 days but I need to add a content disposition header to correct the file name to the desired format.

abritrarily (with a primary key from a database) to prevent filename conflict

is it possible to change the URL to make it add the content disposition header without modifying the files content-disposition header and saving it on the bucket?

Answer 1

如果您使用 AWS SDK for Ruby 中 AWS::S3::S3Object 类的实例方法url_for ( )为您的Amazon S3对象生成预签名 URL ，则可选哈希允许您指定用于生成URL，其中包括所需的标头：optionscontent-disposition

: response_content_disposition (String) — 在返回的 URL 上执行 HTTP GET 时设置响应的 Content-Disposition 标头。

Answer 2

如果有人正在寻找 JavaScript 示例：

s3.getSignedUrl(
  'getObject',
  {
    Bucket: 'foo',
    Key: 'bar',
    ResponseContentDisposition: 'attachment; filename="bar"'
  },
  (error, signedURL) => {
    console.log(signedURL);
  }
);