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package providers |
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import ( |
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"encoding/json" |
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"errors" |
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"fmt" |
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"io/ioutil" |
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"net/http" |
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"os" |
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"strconv" |
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"strings" |
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"time" |
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httputil "github.com/aliyun/credentials-go/credentials/internal/http" |
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"github.com/aliyun/credentials-go/credentials/internal/utils" |
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) |
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type OIDCCredentialsProvider struct { |
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oidcProviderARN string |
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oidcTokenFilePath string |
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roleArn string |
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roleSessionName string |
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durationSeconds int |
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policy string |
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// for sts endpoint |
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stsRegionId string |
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enableVpc bool |
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stsEndpoint string |
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lastUpdateTimestamp int64 |
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expirationTimestamp int64 |
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sessionCredentials *sessionCredentials |
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// for http options |
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httpOptions *HttpOptions |
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} |
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type OIDCCredentialsProviderBuilder struct { |
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provider *OIDCCredentialsProvider |
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} |
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func NewOIDCCredentialsProviderBuilder() *OIDCCredentialsProviderBuilder { |
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return &OIDCCredentialsProviderBuilder{ |
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provider: &OIDCCredentialsProvider{}, |
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} |
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} |
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func (b *OIDCCredentialsProviderBuilder) WithOIDCProviderARN(oidcProviderArn string) *OIDCCredentialsProviderBuilder { |
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b.provider.oidcProviderARN = oidcProviderArn |
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return b |
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} |
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func (b *OIDCCredentialsProviderBuilder) WithOIDCTokenFilePath(oidcTokenFilePath string) *OIDCCredentialsProviderBuilder { |
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b.provider.oidcTokenFilePath = oidcTokenFilePath |
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return b |
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} |
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func (b *OIDCCredentialsProviderBuilder) WithRoleArn(roleArn string) *OIDCCredentialsProviderBuilder { |
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b.provider.roleArn = roleArn |
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return b |
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} |
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func (b *OIDCCredentialsProviderBuilder) WithRoleSessionName(roleSessionName string) *OIDCCredentialsProviderBuilder { |
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b.provider.roleSessionName = roleSessionName |
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return b |
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} |
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func (b *OIDCCredentialsProviderBuilder) WithDurationSeconds(durationSeconds int) *OIDCCredentialsProviderBuilder { |
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b.provider.durationSeconds = durationSeconds |
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return b |
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} |
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func (b *OIDCCredentialsProviderBuilder) WithStsRegionId(regionId string) *OIDCCredentialsProviderBuilder { |
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b.provider.stsRegionId = regionId |
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return b |
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} |
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func (b *OIDCCredentialsProviderBuilder) WithEnableVpc(enableVpc bool) *OIDCCredentialsProviderBuilder { |
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b.provider.enableVpc = enableVpc |
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return b |
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} |
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func (b *OIDCCredentialsProviderBuilder) WithPolicy(policy string) *OIDCCredentialsProviderBuilder { |
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b.provider.policy = policy |
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return b |
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} |
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func (b *OIDCCredentialsProviderBuilder) WithSTSEndpoint(stsEndpoint string) *OIDCCredentialsProviderBuilder { |
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b.provider.stsEndpoint = stsEndpoint |
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return b |
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} |
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func (b *OIDCCredentialsProviderBuilder) WithHttpOptions(httpOptions *HttpOptions) *OIDCCredentialsProviderBuilder { |
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b.provider.httpOptions = httpOptions |
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return b |
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} |
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func (b *OIDCCredentialsProviderBuilder) Build() (provider *OIDCCredentialsProvider, err error) { |
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if b.provider.roleSessionName == "" { |
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b.provider.roleSessionName = "credentials-go-" + strconv.FormatInt(time.Now().UnixNano()/1000, 10) |
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} |
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if b.provider.oidcTokenFilePath == "" { |
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b.provider.oidcTokenFilePath = os.Getenv("ALIBABA_CLOUD_OIDC_TOKEN_FILE") |
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} |
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if b.provider.oidcTokenFilePath == "" { |
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err = errors.New("the OIDCTokenFilePath is empty") |
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return |
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} |
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if b.provider.oidcProviderARN == "" { |
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b.provider.oidcProviderARN = os.Getenv("ALIBABA_CLOUD_OIDC_PROVIDER_ARN") |
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} |
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if b.provider.oidcProviderARN == "" { |
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err = errors.New("the OIDCProviderARN is empty") |
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return |
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} |
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if b.provider.roleArn == "" { |
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b.provider.roleArn = os.Getenv("ALIBABA_CLOUD_ROLE_ARN") |
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} |
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if b.provider.roleArn == "" { |
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err = errors.New("the RoleArn is empty") |
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return |
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} |
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if b.provider.durationSeconds == 0 { |
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b.provider.durationSeconds = 3600 |
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} |
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if b.provider.durationSeconds < 900 { |
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err = errors.New("the Assume Role session duration should be in the range of 15min - max duration seconds") |
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} |
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if b.provider.stsEndpoint == "" { |
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if !b.provider.enableVpc { |
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b.provider.enableVpc = strings.ToLower(os.Getenv("ALIBABA_CLOUD_VPC_ENDPOINT_ENABLED")) == "true" |
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} |
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prefix := "sts" |
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if b.provider.enableVpc { |
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prefix = "sts-vpc" |
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} |
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if b.provider.stsRegionId != "" { |
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b.provider.stsEndpoint = fmt.Sprintf("%s.%s.aliyuncs.com", prefix, b.provider.stsRegionId) |
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} else if region := os.Getenv("ALIBABA_CLOUD_STS_REGION"); region != "" { |
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b.provider.stsEndpoint = fmt.Sprintf("%s.%s.aliyuncs.com", prefix, region) |
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} else { |
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b.provider.stsEndpoint = "sts.aliyuncs.com" |
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} |
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} |
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provider = b.provider |
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return |
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} |
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func (provider *OIDCCredentialsProvider) getCredentials() (session *sessionCredentials, err error) { |
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req := &httputil.Request{ |
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Method: "POST", |
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Protocol: "https", |
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Host: provider.stsEndpoint, |
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Headers: map[string]string{}, |
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} |
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connectTimeout := 5 * time.Second |
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readTimeout := 10 * time.Second |
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if provider.httpOptions != nil && provider.httpOptions.ConnectTimeout > 0 { |
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connectTimeout = time.Duration(provider.httpOptions.ConnectTimeout) * time.Millisecond |
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} |
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if provider.httpOptions != nil && provider.httpOptions.ReadTimeout > 0 { |
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readTimeout = time.Duration(provider.httpOptions.ReadTimeout) * time.Millisecond |
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} |
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if provider.httpOptions != nil && provider.httpOptions.Proxy != "" { |
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req.Proxy = provider.httpOptions.Proxy |
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} |
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req.ConnectTimeout = connectTimeout |
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req.ReadTimeout = readTimeout |
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queries := make(map[string]string) |
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queries["Version"] = "2015-04-01" |
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queries["Action"] = "AssumeRoleWithOIDC" |
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queries["Format"] = "JSON" |
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queries["Timestamp"] = utils.GetTimeInFormatISO8601() |
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req.Queries = queries |
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bodyForm := make(map[string]string) |
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bodyForm["RoleArn"] = provider.roleArn |
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bodyForm["OIDCProviderArn"] = provider.oidcProviderARN |
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token, err := ioutil.ReadFile(provider.oidcTokenFilePath) |
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if err != nil { |
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return |
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} |
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bodyForm["OIDCToken"] = string(token) |
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if provider.policy != "" { |
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bodyForm["Policy"] = provider.policy |
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} |
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bodyForm["RoleSessionName"] = provider.roleSessionName |
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bodyForm["DurationSeconds"] = strconv.Itoa(provider.durationSeconds) |
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req.Form = bodyForm |
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// set headers |
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req.Headers["Accept-Encoding"] = "identity" |
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res, err := httpDo(req) |
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if err != nil { |
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return |
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} |
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if res.StatusCode != http.StatusOK { |
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message := "get session token failed: " |
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err = errors.New(message + string(res.Body)) |
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return |
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} |
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var data assumeRoleResponse |
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err = json.Unmarshal(res.Body, &data) |
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if err != nil { |
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err = fmt.Errorf("get oidc sts token err, json.Unmarshal fail: %s", err.Error()) |
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return |
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} |
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if data.Credentials == nil { |
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err = fmt.Errorf("get oidc sts token err, fail to get credentials") |
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return |
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} |
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if data.Credentials.AccessKeyId == nil || data.Credentials.AccessKeySecret == nil || data.Credentials.SecurityToken == nil { |
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err = fmt.Errorf("refresh RoleArn sts token err, fail to get credentials") |
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return |
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} |
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session = &sessionCredentials{ |
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AccessKeyId: *data.Credentials.AccessKeyId, |
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AccessKeySecret: *data.Credentials.AccessKeySecret, |
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SecurityToken: *data.Credentials.SecurityToken, |
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Expiration: *data.Credentials.Expiration, |
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} |
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return |
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} |
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func (provider *OIDCCredentialsProvider) needUpdateCredential() (result bool) { |
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if provider.expirationTimestamp == 0 { |
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return true |
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} |
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return provider.expirationTimestamp-time.Now().Unix() <= 180 |
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} |
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func (provider *OIDCCredentialsProvider) GetCredentials() (cc *Credentials, err error) { |
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if provider.sessionCredentials == nil || provider.needUpdateCredential() { |
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sessionCredentials, err1 := provider.getCredentials() |
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if err1 != nil { |
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return nil, err1 |
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} |
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provider.sessionCredentials = sessionCredentials |
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expirationTime, err2 := time.Parse("2006-01-02T15:04:05Z", sessionCredentials.Expiration) |
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if err2 != nil { |
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return nil, err2 |
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} |
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provider.lastUpdateTimestamp = time.Now().Unix() |
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provider.expirationTimestamp = expirationTime.Unix() |
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} |
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cc = &Credentials{ |
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AccessKeyId: provider.sessionCredentials.AccessKeyId, |
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AccessKeySecret: provider.sessionCredentials.AccessKeySecret, |
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SecurityToken: provider.sessionCredentials.SecurityToken, |
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ProviderName: provider.GetProviderName(), |
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} |
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return |
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} |
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func (provider *OIDCCredentialsProvider) GetProviderName() string { |
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return "oidc_role_arn" |
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} |
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aliyun /
credentials-go
