An S3 Bucket policy that allows s3:GetObject permission with a condition, using the aws:referer key, that the get request must originate from specific webpages.

 
Missing Parameters
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Principal": "*",
            "Action": "s3:GetObject",
            "Resource": [
                "arn:aws:s3:::/*"
            ],
            "Effect": "Allow",
            "Condition": [
                {
                    "StringLike": {
                        "aws:Referer": [
                            "http://www.example.com/*",
                            "http://example.com/*"
                        ]
                    }
                }
            ]
        }
    ]
}
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