How can i enforce file type uploads with an AWS S3 bucket policy

问题

Using a bucket policy for AWS S3, is it possible to enforce that the file being uploaded (PutObject) has the file extension ".txt"? If so what would that bucket policy look like?

回答1:

Something like this:

{
  "Version":"2008-10-17",
  "Statement": [
    {
      "Sid":"AddPerm",
      "Effect":"Allow",
      "Principal": { "AWS": "arn:aws:iam::111122223333:root" },
      "Action": "s3:PutObject",
      "Resource": "arn:aws:s3:::bucket/*.txt"
    }
  ]
}

来源：https://stackoverflow.com/questions/17050308/how-can-i-enforce-file-type-uploads-with-an-aws-s3-bucket-policy