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package providers |
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import ( |
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"errors" |
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"fmt" |
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"os" |
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"path" |
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"github.com/aliyun/credentials-go/credentials/internal/utils" |
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"gopkg.in/ini.v1" |
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) |
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type ProfileCredentialsProvider struct { |
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profileName string |
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innerProvider CredentialsProvider |
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} |
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type ProfileCredentialsProviderBuilder struct { |
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provider *ProfileCredentialsProvider |
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} |
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func NewProfileCredentialsProviderBuilder() (builder *ProfileCredentialsProviderBuilder) { |
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return &ProfileCredentialsProviderBuilder{ |
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provider: &ProfileCredentialsProvider{}, |
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} |
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} |
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func (b *ProfileCredentialsProviderBuilder) WithProfileName(profileName string) *ProfileCredentialsProviderBuilder { |
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b.provider.profileName = profileName |
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return b |
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} |
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func (b *ProfileCredentialsProviderBuilder) Build() (provider *ProfileCredentialsProvider, err error) { |
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// 优先级: |
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// 1. 使用显示指定的 profileName |
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// 2. 使用环境变量(ALIBABA_CLOUD_PROFILE)指定的 profileName |
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// 3. 兜底使用 default 作为 profileName |
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b.provider.profileName = utils.GetDefaultString(b.provider.profileName, os.Getenv("ALIBABA_CLOUD_PROFILE"), "default") |
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provider = b.provider |
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return |
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} |
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func (provider *ProfileCredentialsProvider) getCredentialsProvider(ini *ini.File) (credentialsProvider CredentialsProvider, err error) { |
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section, err := ini.GetSection(provider.profileName) |
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if err != nil { |
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err = errors.New("ERROR: Can not load section" + err.Error()) |
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return |
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} |
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value, err := section.GetKey("type") |
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if err != nil { |
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err = errors.New("ERROR: Can not find credential type" + err.Error()) |
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return |
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} |
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switch value.String() { |
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case "access_key": |
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value1, err1 := section.GetKey("access_key_id") |
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value2, err2 := section.GetKey("access_key_secret") |
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if err1 != nil || err2 != nil { |
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err = errors.New("ERROR: Failed to get value") |
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return |
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} |
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if value1.String() == "" || value2.String() == "" { |
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err = errors.New("ERROR: Value can't be empty") |
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return |
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} |
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credentialsProvider, err = NewStaticAKCredentialsProviderBuilder(). |
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WithAccessKeyId(value1.String()). |
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WithAccessKeySecret(value2.String()). |
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Build() |
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case "ecs_ram_role": |
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value1, err1 := section.GetKey("role_name") |
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if err1 != nil { |
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err = errors.New("ERROR: Failed to get value") |
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return |
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} |
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credentialsProvider, err = NewECSRAMRoleCredentialsProviderBuilder().WithRoleName(value1.String()).Build() |
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case "ram_role_arn": |
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value1, err1 := section.GetKey("access_key_id") |
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value2, err2 := section.GetKey("access_key_secret") |
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value3, err3 := section.GetKey("role_arn") |
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value4, err4 := section.GetKey("role_session_name") |
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if err1 != nil || err2 != nil || err3 != nil || err4 != nil { |
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err = errors.New("ERROR: Failed to get value") |
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return |
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} |
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if value1.String() == "" || value2.String() == "" || value3.String() == "" || value4.String() == "" { |
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err = errors.New("ERROR: Value can't be empty") |
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return |
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} |
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previous, err5 := NewStaticAKCredentialsProviderBuilder(). |
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WithAccessKeyId(value1.String()). |
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WithAccessKeySecret(value2.String()). |
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Build() |
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if err5 != nil { |
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err = errors.New("get previous credentials provider failed") |
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return |
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} |
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rawPolicy, _ := section.GetKey("policy") |
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policy := "" |
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if rawPolicy != nil { |
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policy = rawPolicy.String() |
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} |
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credentialsProvider, err = NewRAMRoleARNCredentialsProviderBuilder(). |
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WithCredentialsProvider(previous). |
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WithRoleArn(value3.String()). |
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WithRoleSessionName(value4.String()). |
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WithPolicy(policy). |
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WithDurationSeconds(3600). |
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Build() |
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default: |
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err = errors.New("ERROR: Failed to get credential") |
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} |
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return |
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} |
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func (provider *ProfileCredentialsProvider) GetCredentials() (cc *Credentials, err error) { |
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if provider.innerProvider == nil { |
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sharedCfgPath := os.Getenv("ALIBABA_CLOUD_CREDENTIALS_FILE") |
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if sharedCfgPath == "" { |
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homeDir := getHomePath() |
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if homeDir == "" { |
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err = fmt.Errorf("cannot found home dir") |
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return |
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} |
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sharedCfgPath = path.Join(homeDir, ".alibabacloud/credentials") |
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} |
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ini, err1 := ini.Load(sharedCfgPath) |
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if err1 != nil { |
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err = errors.New("ERROR: Can not open file" + err1.Error()) |
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return |
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} |
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provider.innerProvider, err = provider.getCredentialsProvider(ini) |
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if err != nil { |
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return |
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} |
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} |
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innerCC, err := provider.innerProvider.GetCredentials() |
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if err != nil { |
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return |
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} |
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providerName := innerCC.ProviderName |
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if providerName == "" { |
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providerName = provider.innerProvider.GetProviderName() |
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} |
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cc = &Credentials{ |
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AccessKeyId: innerCC.AccessKeyId, |
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AccessKeySecret: innerCC.AccessKeySecret, |
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SecurityToken: innerCC.SecurityToken, |
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ProviderName: fmt.Sprintf("%s/%s", provider.GetProviderName(), providerName), |
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} |
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return |
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} |
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func (provider *ProfileCredentialsProvider) GetProviderName() string { |
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return "profile" |
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} |
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