I'm trying to restrict access to objects (media files) in an Amazon S3 bucket to a specific referral domain, privatewebsite.com
, with a bucket policy, but keep getting access denied, no matter the domain referred.
I have the following settings for Block Public Access
Block public access to buckets and objects granted through new access control lists (ACLs) - On
Block public access to buckets and objects granted through any access control lists (ACLs) - On
Block public access to buckets and objects granted through new public bucket policies - Off
Block public and cross-account access to buckets and objects through any public bucket policies - Off
I've added the following code, URL with and without, http:// and https://, yet still get access denied. (privatewebsite.com, https://privatewebsite.com, http://privatewebsite.com)
{
"Version": "2012-10-17",
"Id": "Policy8675309",
"Statement": [
{
"Sid": "Stmt8675309",
"Effect": "Allow",
"Principal": "*",
"Action": "s3:GetObject",
"Resource": "arn:aws:s3:::my-media-bucket/*",
"Condition": {
"StringLike": {
"aws:Referer": "https://privatewebsite.com"
}
}
},
{
"Sid": "Explicit deny to ensure requests are allowed only from specific referer.",
"Effect": "Deny",
"Principal": "*",
"Action": "s3:*",
"Resource": "arn:aws:s3:::my-media-bucket/*",
"Condition": {
"StringNotLike": {
"aws:Referer": [
"https://privatewebsite.com/*",
"http://privatewebsite.com/*"
]
}
}
}
]
}
Can anyone see any obvious errors in my bucket policy?
I expect this policy to ALLOW any request, when coming from a page on privatewebsite.com, while DENY-ing all other requests, but at the moment ALL requests are denied.
From Bucket Policy Examples - Restricting Access to a Specific HTTP Referrer:
{
"Version": "2012-10-17",
"Id": "http referer policy example",
"Statement": [
{
"Sid": "Allow get requests originating from www.example.com and example.com.",
"Effect": "Allow",
"Principal": "*",
"Action": "s3:GetObject",
"Resource": "arn:aws:s3:::examplebucket/*",
"Condition": {
"StringLike": {
"aws:Referer": [
"http://www.example.com/*",
"http://example.com/*"
]
}
}
}
]
}
This method only grants Allow
access for the given Referer. There is no need to use a Deny
policy with it because access is denied by default. Thus, only the Allow
permissions are granted.