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credential_provider.go
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/
credential_provider.go
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// Copyright 2022 Huawei Technologies Co.,Ltd.
//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 provider
import (
"fmt"
"github.com/dysodeng/huaweicloud-sdk-go-v3/core/auth"
"github.com/dysodeng/huaweicloud-sdk-go-v3/core/sdkerr"
"reflect"
)
const (
basicCredentialType = "basic"
globalCredentialType = "global"
credentialsAttr = "Credentials"
akAttr = "AK"
skAttr = "SK"
securityTokenAttr = "SecurityToken"
idpIdAttr = "IdpId"
idTokenFileAttr = "IdTokenFile"
iamEndpointAttr = "IamEndpoint"
)
type ICredentialProvider interface {
GetCredentials() (auth.ICredential, error)
}
type commonAttrs struct {
ak string
sk string
securityToken string
idpId string
idTokenFile string
iamEndpoint string
}
func fillCommonAttrs(builder interface{}, common commonAttrs) error {
v := reflect.ValueOf(builder)
if v.Kind() == reflect.Ptr {
v = v.Elem()
}
v = v.FieldByName(credentialsAttr)
if v.Kind() == reflect.Ptr {
v = v.Elem()
}
if common.iamEndpoint != "" {
v.FieldByName(iamEndpointAttr).SetString(common.iamEndpoint)
}
if common.idpId != "" && common.idTokenFile != "" {
v.FieldByName(idpIdAttr).SetString(common.idpId)
v.FieldByName(idTokenFileAttr).SetString(common.idTokenFile)
return nil
} else if common.ak != "" && common.sk != "" {
v.FieldByName(akAttr).SetString(common.ak)
v.FieldByName(skAttr).SetString(common.sk)
v.FieldByName(securityTokenAttr).SetString(common.securityToken)
return nil
}
return sdkerr.NewCredentialsTypeError(fmt.Sprintf("%s&%s or %s&%s does not exist",
akAttr, skAttr, idpIdAttr, idTokenFileAttr))
}