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refine the OIDC credentials provider
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| mock oidc token |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,267 @@ | ||
| package providers | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "os" | ||
| "strconv" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/aliyun/credentials-go/credentials/internal/utils" | ||
| ) | ||
|
|
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| type OIDCCredentialsProvider struct { | ||
| oidcProviderARN string | ||
| oidcTokenFilePath string | ||
| roleArn string | ||
| roleSessionName string | ||
| durationSeconds int | ||
| policy string | ||
| stsRegionId string | ||
| stsEndpoint string | ||
| lastUpdateTimestamp int64 | ||
| expirationTimestamp int64 | ||
| sessionCredentials *sessionCredentials | ||
| runtime *utils.Runtime | ||
| } | ||
|
|
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| type OIDCCredentialsProviderBuilder struct { | ||
| provider *OIDCCredentialsProvider | ||
| } | ||
|
|
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| func NewOIDCCredentialsProviderBuilder() *OIDCCredentialsProviderBuilder { | ||
| return &OIDCCredentialsProviderBuilder{ | ||
| provider: &OIDCCredentialsProvider{}, | ||
| } | ||
| } | ||
|
|
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| func (b *OIDCCredentialsProviderBuilder) WithOIDCProviderARN(oidcProviderArn string) *OIDCCredentialsProviderBuilder { | ||
| b.provider.oidcProviderARN = oidcProviderArn | ||
| return b | ||
| } | ||
|
|
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| func (b *OIDCCredentialsProviderBuilder) WithOIDCTokenFilePath(oidcTokenFilePath string) *OIDCCredentialsProviderBuilder { | ||
| b.provider.oidcTokenFilePath = oidcTokenFilePath | ||
| return b | ||
| } | ||
|
|
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| func (b *OIDCCredentialsProviderBuilder) WithRoleArn(roleArn string) *OIDCCredentialsProviderBuilder { | ||
| b.provider.roleArn = roleArn | ||
| return b | ||
| } | ||
|
|
||
| func (b *OIDCCredentialsProviderBuilder) WithRoleSessionName(roleSessionName string) *OIDCCredentialsProviderBuilder { | ||
| b.provider.roleSessionName = roleSessionName | ||
| return b | ||
| } | ||
|
|
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| func (b *OIDCCredentialsProviderBuilder) WithDurationSeconds(durationSeconds int) *OIDCCredentialsProviderBuilder { | ||
| b.provider.durationSeconds = durationSeconds | ||
| return b | ||
| } | ||
|
|
||
| func (b *OIDCCredentialsProviderBuilder) WithStsRegionId(regionId string) *OIDCCredentialsProviderBuilder { | ||
| b.provider.stsRegionId = regionId | ||
| return b | ||
| } | ||
|
|
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| func (b *OIDCCredentialsProviderBuilder) WithPolicy(policy string) *OIDCCredentialsProviderBuilder { | ||
| b.provider.policy = policy | ||
| return b | ||
| } | ||
|
|
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| func (b *OIDCCredentialsProviderBuilder) WithSTSEndpoint(stsEndpoint string) *OIDCCredentialsProviderBuilder { | ||
| b.provider.stsEndpoint = stsEndpoint | ||
| return b | ||
| } | ||
|
|
||
| func (b *OIDCCredentialsProviderBuilder) WithRuntime(runtime *utils.Runtime) *OIDCCredentialsProviderBuilder { | ||
| b.provider.runtime = runtime | ||
| return b | ||
| } | ||
|
|
||
| func (b *OIDCCredentialsProviderBuilder) Build() (provider *OIDCCredentialsProvider, err error) { | ||
| if b.provider.roleSessionName == "" { | ||
| b.provider.roleSessionName = "credentials-go-" + strconv.FormatInt(time.Now().UnixNano()/1000, 10) | ||
| } | ||
|
|
||
| if b.provider.oidcTokenFilePath == "" { | ||
| b.provider.oidcTokenFilePath = os.Getenv("ALIBABA_CLOUD_OIDC_TOKEN_FILE") | ||
| } | ||
|
|
||
| if b.provider.oidcTokenFilePath == "" { | ||
| err = errors.New("the OIDCTokenFilePath is empty") | ||
| return | ||
| } | ||
|
|
||
| if b.provider.oidcProviderARN == "" { | ||
| b.provider.oidcProviderARN = os.Getenv("ALIBABA_CLOUD_OIDC_PROVIDER_ARN") | ||
| } | ||
|
|
||
| if b.provider.oidcProviderARN == "" { | ||
| err = errors.New("the OIDCProviderARN is empty") | ||
| return | ||
| } | ||
|
|
||
| if b.provider.roleArn == "" { | ||
| b.provider.roleArn = os.Getenv("ALIBABA_CLOUD_ROLE_ARN") | ||
| } | ||
|
|
||
| if b.provider.roleArn == "" { | ||
| err = errors.New("the RoleArn is empty") | ||
| return | ||
| } | ||
|
|
||
| if b.provider.durationSeconds == 0 { | ||
| b.provider.durationSeconds = 3600 | ||
| } | ||
|
|
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| if b.provider.durationSeconds < 900 { | ||
| err = errors.New("the Assume Role session duration should be in the range of 15min - max duration seconds") | ||
| } | ||
|
|
||
| if b.provider.stsEndpoint == "" { | ||
| if b.provider.stsRegionId != "" { | ||
| b.provider.stsEndpoint = fmt.Sprintf("sts.%s.aliyuncs.com", b.provider.stsRegionId) | ||
| } else { | ||
| b.provider.stsEndpoint = "sts.aliyuncs.com" | ||
| } | ||
| } | ||
|
|
||
| provider = b.provider | ||
| return | ||
| } | ||
|
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| func (provider *OIDCCredentialsProvider) getCredentials() (session *sessionCredentials, err error) { | ||
| method := "POST" | ||
| host := provider.stsEndpoint | ||
| queries := make(map[string]string) | ||
| queries["Version"] = "2015-04-01" | ||
| queries["Action"] = "AssumeRoleWithOIDC" | ||
| queries["Format"] = "JSON" | ||
| queries["Timestamp"] = utils.GetTimeInFormatISO8601() | ||
|
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| bodyForm := make(map[string]string) | ||
| bodyForm["RoleArn"] = provider.roleArn | ||
| bodyForm["OIDCProviderArn"] = provider.oidcProviderARN | ||
| token, err := ioutil.ReadFile(provider.oidcTokenFilePath) | ||
| if err != nil { | ||
| return | ||
| } | ||
|
|
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| bodyForm["OIDCToken"] = string(token) | ||
| if provider.policy != "" { | ||
| bodyForm["Policy"] = provider.policy | ||
| } | ||
|
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| bodyForm["RoleSessionName"] = provider.roleSessionName | ||
| bodyForm["DurationSeconds"] = strconv.Itoa(provider.durationSeconds) | ||
|
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| // caculate signature | ||
| signParams := make(map[string]string) | ||
| for key, value := range queries { | ||
| signParams[key] = value | ||
| } | ||
| for key, value := range bodyForm { | ||
| signParams[key] = value | ||
| } | ||
|
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| querystring := utils.GetURLFormedMap(queries) | ||
| // do request | ||
| httpUrl := fmt.Sprintf("https://%s/?%s", host, querystring) | ||
|
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| body := utils.GetURLFormedMap(bodyForm) | ||
|
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| httpRequest, err := hookNewRequest(http.NewRequest)(method, httpUrl, strings.NewReader(body)) | ||
| if err != nil { | ||
| return | ||
| } | ||
|
|
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| // set headers | ||
| httpRequest.Header["Accept-Encoding"] = []string{"identity"} | ||
| httpRequest.Header["Content-Type"] = []string{"application/x-www-form-urlencoded"} | ||
| httpClient := &http.Client{} | ||
|
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| httpResponse, err := hookDo(httpClient.Do)(httpRequest) | ||
| if err != nil { | ||
| return | ||
| } | ||
|
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| defer httpResponse.Body.Close() | ||
|
|
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| responseBody, err := ioutil.ReadAll(httpResponse.Body) | ||
| if err != nil { | ||
| return | ||
| } | ||
|
|
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| if httpResponse.StatusCode != http.StatusOK { | ||
| message := "get session token failed: " | ||
| err = errors.New(message + string(responseBody)) | ||
| return | ||
| } | ||
| var data assumeRoleResponse | ||
| err = json.Unmarshal(responseBody, &data) | ||
| if err != nil { | ||
| err = fmt.Errorf("get oidc sts token err, json.Unmarshal fail: %s", err.Error()) | ||
| return | ||
| } | ||
| if data.Credentials == nil { | ||
| err = fmt.Errorf("get oidc sts token err, fail to get credentials") | ||
| return | ||
| } | ||
|
|
||
| if data.Credentials.AccessKeyId == nil || data.Credentials.AccessKeySecret == nil || data.Credentials.SecurityToken == nil { | ||
| err = fmt.Errorf("refresh RoleArn sts token err, fail to get credentials") | ||
| return | ||
| } | ||
|
|
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| session = &sessionCredentials{ | ||
| AccessKeyId: *data.Credentials.AccessKeyId, | ||
| AccessKeySecret: *data.Credentials.AccessKeySecret, | ||
| SecurityToken: *data.Credentials.SecurityToken, | ||
| Expiration: *data.Credentials.Expiration, | ||
| } | ||
| return | ||
| } | ||
|
|
||
| func (provider *OIDCCredentialsProvider) needUpdateCredential() (result bool) { | ||
| if provider.expirationTimestamp == 0 { | ||
| return true | ||
| } | ||
|
|
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| return provider.expirationTimestamp-time.Now().Unix() <= 180 | ||
| } | ||
|
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| func (provider *OIDCCredentialsProvider) GetCredentials() (cc *Credentials, err error) { | ||
| if provider.sessionCredentials == nil || provider.needUpdateCredential() { | ||
| sessionCredentials, err1 := provider.getCredentials() | ||
| if err1 != nil { | ||
| return nil, err1 | ||
| } | ||
|
|
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| provider.sessionCredentials = sessionCredentials | ||
| expirationTime, err2 := time.Parse("2006-01-02T15:04:05Z", sessionCredentials.Expiration) | ||
| if err2 != nil { | ||
| return nil, err2 | ||
| } | ||
|
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| provider.lastUpdateTimestamp = time.Now().Unix() | ||
| provider.expirationTimestamp = expirationTime.Unix() | ||
| } | ||
|
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| cc = &Credentials{ | ||
| AccessKeyId: provider.sessionCredentials.AccessKeyId, | ||
| AccessKeySecret: provider.sessionCredentials.AccessKeySecret, | ||
| SecurityToken: provider.sessionCredentials.SecurityToken, | ||
| ProviderName: provider.GetProviderName(), | ||
| } | ||
| return | ||
| } | ||
|
|
||
| func (provider *OIDCCredentialsProvider) GetProviderName() string { | ||
| return "oidc" | ||
| } |
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