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AWS S3でStatic website hostingする際のReferer制御

Last updated at Posted at 2019-11-09

実現すること

AWS S3でバケットをStatic website hostingする際に

  • index.htmlのみ公開
  • それ以外のリソースはRefererでアクセス制御

します

やりかた

S3のバケットの
アクセス制限/バケットポリシー
にて以下を記載します

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "Allow all to index.html",
            "Effect": "Allow",
            "Principal": "*",
            "Action": "s3:GetObject",
            "Resource": "arn:aws:s3:::${S3_BUCKET_NAME}/index.html"
        },
        {
            "Sid": "Allow all from own domain",
            "Effect": "Allow",
            "Principal": "*",
            "Action": "s3:GetObject",
            "Resource": "arn:aws:s3:::${S3_BUCKET_NAME}/*",
            "Condition": {
                "StringLike": {
                    "aws:Referer": "https://${S3_BUCKET_NAME}.s3-ap-northeast-1.amazonaws.com/*"
                }
            }
        }
    ]
}
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