Limiting the Time When Objects in a Bucket Are Accessible

Procedure

1. In the bucket list, click the bucket you want to operate. The Overview page is displayed.
2. In the navigation pane, choose Permissions.
3. Choose Bucket Policies > Custom Bucket Policies.
4. Click Create Bucket Policy. The Create Bucket Policy dialog box is displayed.
5. Configure parameters listed in the table below.

   Table 1 Parameters for granting permission to access a bucket

   Parameter	Value
   Policy Mode	Customized
   Effect	Allow
   Principal	Include Select Other account, and enter an asterisk (*) as the account ID, indicating all anonymous users.
   Resources	Include Set the resource name to *, indicating all resources in the bucket. NOTE: This example only grants permissions for resources in the bucket. If you also want to grant permission for the bucket (for example, the permission to list objects in the bucket), create another custom bucket policy.
   Actions	Include Select * as the action name, which indicates all action permissions. NOTE: Selecting * may cause resources to be deleted. To avoid this risk, select Get* that indicates all read permissions.
   Conditions	Condition Operator: DateGreaterThan Key: CurrentTime Value: 2019-03-26T12:00:00Z (UTC format)
   Conditions	Condition Operator: DateLessThan Key: CurrentTime Value: 2019-03-26T15:00:00Z (UTC format)

   

   The preceding two conditions must be configured in the same bucket policy.

6. Click OK.

Verification

During the specified time period, any user can access the specified resources in the bucket. Outside the specified time period, only the bucket owner can access the bucket.