在PUT操作的url中加上Policy，可以進行添加或修改Policy的操作。如果Bucket已經存在了Policy，此操作會替換原有Policy。只有根用戶和擁有PUT Bucket Policy權限的用戶才能執行此操作，否則會返回403 AccessDenied錯誤。

注意
如果Bucket的屬性為私有或者公共讀，使用該接口配置允許任何用戶可以向該Bucket寫文件的策略時，請聯系天翼云客服評估審核后開通。

請求語法

PUT /?policy HTTP/1.1
Host: BucketName.oos-cn.ctyunapi.cn
Date: date
Authorization: SignatureValue

Policy written in JSON

請求的內容是一個包含Policy語句的JSON串，詳見Bucket Policy安全策略。

請求參數

請求示例

PUT /?policy HTTP/1.1
Host: example-bucket.oos-cn.ctyunapi.cn
Date: Sun, 28 Apr 2024 02:02:21 GMT
Content-MD5: +nl0RJvKLaXlRhwFXiBLVw==
Content-Type: application/octet-stream
X-Amz-Content-Sha256: c71bbdea6d26f41a56ce0312bfeadffa06718956c925dbc82af5df7bbad6a58f
Authorization: SignatureValue
Connection: keep-alive
Content-Length: 465

{
  "Version":"2012-10-17",
  "Id":"*",
  "Statement":[
    {
      "Sid":"*",
      "Effect":"Allow",
      "Principal":{ "CTYUN": "arn:ctyun:iam::32fefj64y54gc:user/test1" },
      "Action":"oos:*",
      "Resource":"arn:ctyun:oos:::example-bucket/*",
      "Condition":{
        "StringLike":{
          "ctyun:Referer":[
            "//www.daliqc.cn/*",
            "//daliqc.cn/*"
          ]
        }
      }
    }
  ]
}

響應示例

HTTP/1.1 200 OK
x-amz-request-id: 0f512a6284004715f16457665b686a702f313a2527292b2d2f
Date: Sun, 28 Apr 2024 02:02:22 GMT
Content-Length: 0
Server: CTYUN