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role_arn_provider.go
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role_arn_provider.go
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/*
Copyright 2021 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package common
import (
"encoding/json"
"strconv"
"time"
tcerr "k8s.io/autoscaler/cluster-autoscaler/cloudprovider/tencentcloud/tencentcloud-sdk-go/common/errors"
tchttp "k8s.io/autoscaler/cluster-autoscaler/cloudprovider/tencentcloud/tencentcloud-sdk-go/common/http"
"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/tencentcloud/tencentcloud-sdk-go/common/profile"
"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/tencentcloud/tencentcloud-sdk-go/common/regions"
)
const (
endpoint = "sts.tencentcloudapi.com"
service = "sts"
version = "2018-08-13"
region = regions.Guangzhou
defaultSessionName = "tencentcloud-go-sdk-"
action = "AssumeRole"
defaultDurationSeconds = 7200
)
type RoleArnProvider struct {
longSecretId string
longSecretKey string
roleArn string
roleSessionName string
durationSeconds int64
}
type stsRsp struct {
Response struct {
Credentials struct {
Token string `json:"Token"`
TmpSecretId string `json:"TmpSecretId"`
TmpSecretKey string `json:"TmpSecretKey"`
} `json:"Credentials"`
ExpiredTime int `json:"ExpiredTime"`
Expiration time.Time `json:"Expiration"`
RequestId string `json:"RequestId"`
} `json:"Response"`
}
func NewRoleArnProvider(secretId, secretKey, roleArn, sessionName string, duration int64) *RoleArnProvider {
return &RoleArnProvider{
longSecretId: secretId,
longSecretKey: secretKey,
roleArn: roleArn,
roleSessionName: sessionName,
durationSeconds: duration,
}
}
// DefaultRoleArnProvider returns a RoleArnProvider that use some default options:
// 1. roleSessionName will be "tencentcloud-go-sdk-" + timestamp
// 2. durationSeconds will be 7200s
func DefaultRoleArnProvider(secretId, secretKey, roleArn string) *RoleArnProvider {
return NewRoleArnProvider(secretId, secretKey, roleArn, defaultSessionName+strconv.FormatInt(time.Now().UnixNano()/1000, 10), defaultDurationSeconds)
}
func (r *RoleArnProvider) GetCredential() (CredentialIface, error) {
if r.durationSeconds > 43200 || r.durationSeconds <= 0 {
return nil, tcerr.NewTencentCloudSDKError(creErr, "Assume Role durationSeconds should be in the range of 0~43200s", "")
}
credential := NewCredential(r.longSecretId, r.longSecretKey)
cpf := profile.NewClientProfile()
cpf.HttpProfile.Endpoint = endpoint
cpf.HttpProfile.ReqMethod = "POST"
client := NewCommonClient(credential, region, cpf)
request := tchttp.NewCommonRequest(service, version, action)
params := map[string]interface{}{
"RoleArn": r.roleArn,
"RoleSessionName": r.roleSessionName,
"DurationSeconds": r.durationSeconds,
}
err := request.SetActionParameters(params)
if err != nil {
return nil, err
}
response := tchttp.NewCommonResponse()
err = client.Send(request, response)
if err != nil {
return nil, err
}
rspSt := new(stsRsp)
if err = json.Unmarshal(response.GetBody(), rspSt); err != nil {
return nil, tcerr.NewTencentCloudSDKError(creErr, err.Error(), "")
}
return &RoleArnCredential{
roleArn: r.roleArn,
roleSessionName: r.roleSessionName,
durationSeconds: r.durationSeconds,
expiredTime: int64(rspSt.Response.ExpiredTime) - r.durationSeconds/10*9, // credential's actual duration time is 1/10 of the original
token: rspSt.Response.Credentials.Token,
tmpSecretId: rspSt.Response.Credentials.TmpSecretId,
tmpSecretKey: rspSt.Response.Credentials.TmpSecretKey,
source: r,
}, nil
}