在PUT操作的url中加上Policy，可以进行添加或修改Policy的操作。如果Bucket已经存在了Policy，此操作会替换原有Policy。只有根用户和拥有PUT Bucket Policy权限的用户才能执行此操作，否则会返回403 AccessDenied错误。

注意
如果Bucket的属性为私有或者公共读，使用该接口配置允许任何用户可以向该Bucket写文件的策略时，请联系天翼云客服评估审核后开通。

请求语法

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

Policy written in JSON

请求的内容是一个包含Policy语句的JSON串，详见Bucket Policy安全策略。

请求参数

请求示例

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":[
            "https://www.ctyun.cn/*",
            "https://ctyun.cn/*"
          ]
        }
      }
    }
  ]
}

响应示例

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