forked from huaweicloud/huaweicloud-sdk-go-v3
-
Notifications
You must be signed in to change notification settings - Fork 0
/
metadata_provider.go
73 lines (64 loc) · 2.73 KB
/
metadata_provider.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
// 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 (
"github.com/dysodeng/huaweicloud-sdk-go-v3/core/auth"
"github.com/dysodeng/huaweicloud-sdk-go-v3/core/auth/basic"
"github.com/dysodeng/huaweicloud-sdk-go-v3/core/auth/global"
"github.com/dysodeng/huaweicloud-sdk-go-v3/core/sdkerr"
"strings"
)
type MetadataCredentialProvider struct {
credentialType string
}
// NewMetadataCredentialProvider return a metadata credential provider
// Supported credential types: basic, global
func NewMetadataCredentialProvider(credentialType string) *MetadataCredentialProvider {
return &MetadataCredentialProvider{credentialType: strings.ToLower(credentialType)}
}
// BasicCredentialMetadataProvider return a metadata provider for basic.Credentials
func BasicCredentialMetadataProvider() *MetadataCredentialProvider {
return NewMetadataCredentialProvider(basicCredentialType)
}
// GlobalCredentialMetadataProvider return a metadata provider for global.Credentials
func GlobalCredentialMetadataProvider() *MetadataCredentialProvider {
return NewMetadataCredentialProvider(globalCredentialType)
}
// GetCredentials get basic.Credentials or global.Credentials from the instance's metadata
func (p *MetadataCredentialProvider) GetCredentials() (auth.ICredential, error) {
if p.credentialType == "" {
return nil, sdkerr.NewCredentialsTypeError("credential type is empty")
}
if strings.HasPrefix(p.credentialType, basicCredentialType) {
credentials := basic.NewCredentialsBuilder().Build()
err := credentials.UpdateSecurityTokenFromMetadata()
if err != nil {
return nil, err
}
return credentials, nil
} else if strings.HasPrefix(p.credentialType, globalCredentialType) {
credentials := global.NewCredentialsBuilder().Build()
err := credentials.UpdateSecurityTokenFromMetadata()
if err != nil {
return nil, err
}
return credentials, nil
}
return nil, sdkerr.NewCredentialsTypeError("unsupported credential type: " + p.credentialType)
}