Create a CNAME token to verify the ownership of the domain name-Object Storage Service(OSS)-阿里云帮助中心

Note

A CNAME token expires 72 hours after creation. If you create a token while an existing token is still valid, the existing token is returned.

Request syntax

POST /?cname&comp=token HTTP/1.1
Host: BucketName.oss-cn-hangzhou.aliyuncs.com
Content-Type: application/xml
Content-Length: 186
Date: GMT Date
Authorization: SignatureValue

Request headers

RestoreObject uses only common request headers. For more information, see Common request headers.

Request elements

Element	Type	Required	Example	Description
BucketCnameConfiguration	Container	Yes	N/A	The container that stores the CNAME record. Parent nodes: none Child nodes: Cname
Cname	Container	Yes	N/A	The container that stores the CNAME information. Parent nodes: BucketCnameConfiguration Child nodes: Domain
Domain	String	Yes	example.com	The custom domain name. Parent nodes: Cname Child nodes: none

Response elements

Element	Type	Example	Description
CnameToken	Container	N/A	The container that stores the CNAME token information. Parent nodes: none Child nodes: Bucket, Cname, Token, and ExpireTime
Bucket	String	examplebucket	The bucket to which the CNAME record is mapped. Parent nodes: CnameToken Child nodes: none
Cname	String	example.com	The CNAME record mapped to the bucket. Parent nodes: CnameToken Child nodes: none
Token	String	be1d49d863dea9ffeff3df7d6455****	The CNAME token returned by OSS. Parent nodes: CnameToken Child nodes: none
ExpireTime	String	Wed, 23 Feb 2022 21:16:37 GMT	The time when the CNAME token expires. Parent nodes: CnameToken Child nodes: none

Examples

Sample request

POST /?cname&comp=token HTTP/1.1
Host: oss-example.oss-cn-hangzhou.aliyuncs.com
Content-Type: application/xml
Content-Length: 186
Date: Thu, 24 Sep 2015 15:39:12 GMT
Authorization: OSS qn6q**************:77Dv****************

<BucketCnameConfiguration>
  <Cname>
    <Domain>example.com</Domain>
  </Cname>
</BucketCnameConfiguration>

Sample responses

The CNAME token is created.

HTTP/1.1 200 OK
x-oss-request-id: 5C1B138A109F4E405B2D
Date: Mon, 26 Jul 2021 13:08:38 GMT
Content-Length: 118
Content-Type: application/xml
Connection: keep-alive
Server: AliyunOSS
<?xml version="1.0" encoding="UTF-8"?>
<CnameToken>
  <Bucket>examplebucket</Bucket>
  <Cname>example.com</Cname>;
  <Token>be1d49d863dea9ffeff3df7d6455****</Token>
  <ExpireTime>Wed, 23 Feb 2022 21:16:37 GMT</ExpireTime>
</CnameToken>

The number of CNAME tokens exceeds the limit.

HTTP/1.1 400 Bad Request
x-oss-request-id: 5C1B138A109F4E405B2D
Date: Mon, 26 Jul 2021 13:08:38 GMT
Content-Length: 118
Content-Type: application/xml
Connection: keep-alive
Server: AliyunOSS
<?xml version="1.0" encoding="UTF-8"?>
<Error>
  <Code>TooManyCnameToken</Code>
  <Message>You have attempted to create more cname token than allowed.</Message>
  <RequestId>6215FD21DA0E27393F004E9E</RequestId>
  <HostId>127.0.0.1</HostId>
  <Bucket>examplebucket</Bucket>
</Error>

OSS SDKs

The following OSS SDKs support the CreateCnameToken operation:

ossutil

For the ossutil command that corresponds to CreateCnameToken, see create-cname-token.

Error codes

Error code	HTTP status code	Description
TooManyCnameToken	400	The number of CNAME tokens for the bucket exceeds the upper limit of 1000.
NoNeedCreateCnameToken	403	A valid CNAME token already exists for the bucket. You do not need to create a new one.