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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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"net/url" |
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"os" |
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"strconv" |
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"strings" |
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"time" |
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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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stsRegionId string |
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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) 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.stsRegionId != "" { |
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b.provider.stsEndpoint = fmt.Sprintf("sts.%s.aliyuncs.com", b.provider.stsRegionId) |
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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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method := "POST" |
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host := provider.stsEndpoint |
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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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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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// caculate signature |
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signParams := make(map[string]string) |
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for key, value := range queries { |
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signParams[key] = value |
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} |
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for key, value := range bodyForm { |
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signParams[key] = value |
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} |
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querystring := utils.GetURLFormedMap(queries) |
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// do request |
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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)) |
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if err != nil { |
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return |
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} |
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// set headers |
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httpRequest.Header["Accept-Encoding"] = []string{"identity"} |
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httpRequest.Header["Content-Type"] = []string{"application/x-www-form-urlencoded"} |
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httpClient := &http.Client{} |
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if provider.httpOptions != nil { |
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httpClient.Timeout = time.Duration(provider.httpOptions.ReadTimeout) * time.Second |
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proxy := &url.URL{} |
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if provider.httpOptions.Proxy != "" { |
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proxy, err = url.Parse(provider.httpOptions.Proxy) |
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if err != nil { |
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return |
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} |
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} |
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trans := &http.Transport{} |
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if proxy != nil && provider.httpOptions.Proxy != "" { |
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trans.Proxy = http.ProxyURL(proxy) |
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} |
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trans.DialContext = utils.Timeout(time.Duration(provider.httpOptions.ConnectTimeout) * time.Second) |
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httpClient.Transport = trans |
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} |
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httpResponse, err := hookDo(httpClient.Do)(httpRequest) |
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if err != nil { |
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return |
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} |
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defer httpResponse.Body.Close() |
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responseBody, err := ioutil.ReadAll(httpResponse.Body) |
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if err != nil { |
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return |
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} |
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if httpResponse.StatusCode != http.StatusOK { |
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message := "get session token failed: " |
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err = errors.New(message + string(responseBody)) |
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return |
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} |
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var data assumeRoleResponse |
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err = json.Unmarshal(responseBody, &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
