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package credentials |
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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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"strconv" |
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"time" |
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"github.com/aliyun/credentials-go/credentials/request" |
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"github.com/aliyun/credentials-go/credentials/utils" |
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) |
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const defaultDurationSeconds = 3600 |
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// RAMRoleArnCredential is a kind of credentials |
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type RAMRoleArnCredential struct { |
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*credentialUpdater |
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AccessKeyID string |
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AccessKeySecret string |
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RoleArn string |
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RoleSessionName string |
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RoleSessionExpiration int |
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Policy string |
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sessionCredential *sessionCredential |
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runtime *utils.Runtime |
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} |
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type ramRoleArnResponse struct { |
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Credentials *credentialsInResponse `json:"Credentials" xml:"Credentials"` |
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} |
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type credentialsInResponse struct { |
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AccessKeyID string `json:"AccessKeyID" xml:"AccessKeyID"` |
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AccessKeySecret string `json:"AccessKeySecret" xml:"AccessKeySecret"` |
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SecurityToken string `json:"SecurityToken" xml:"SecurityToken"` |
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Expiration string `json:"Expiration" xml:"Expiration"` |
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} |
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func newRAMRoleArnCredential(accessKeyID, accessKeySecret, roleArn, roleSessionName, policy string, roleSessionExpiration int, runtime *utils.Runtime) *RAMRoleArnCredential { |
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return &RAMRoleArnCredential{ |
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AccessKeyID: accessKeyID, |
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AccessKeySecret: accessKeySecret, |
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RoleArn: roleArn, |
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RoleSessionName: roleSessionName, |
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RoleSessionExpiration: roleSessionExpiration, |
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Policy: policy, |
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credentialUpdater: new(credentialUpdater), |
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runtime: runtime, |
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} |
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} |
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// GetAccessKeyID reutrns RamRoleArnCredential's AccessKeyID |
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// if AccessKeyID is not exist or out of date, the function will update it. |
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func (r *RAMRoleArnCredential) GetAccessKeyId() (string, error) { |
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if r.sessionCredential == nil || r.needUpdateCredential() { |
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err := r.updateCredential() |
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if err != nil { |
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return "", err |
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} |
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} |
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return r.sessionCredential.AccessKeyID, nil |
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} |
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// GetAccessSecret reutrns RamRoleArnCredential's AccessKeySecret |
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// if AccessKeySecret is not exist or out of date, the function will update it. |
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func (r *RAMRoleArnCredential) GetAccessKeySecret() (string, error) { |
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if r.sessionCredential == nil || r.needUpdateCredential() { |
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err := r.updateCredential() |
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if err != nil { |
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return "", err |
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} |
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} |
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return r.sessionCredential.AccessKeySecret, nil |
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} |
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// GetSecurityToken reutrns RamRoleArnCredential's SecurityToken |
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// if SecurityToken is not exist or out of date, the function will update it. |
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func (r *RAMRoleArnCredential) GetSecurityToken() (string, error) { |
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if r.sessionCredential == nil || r.needUpdateCredential() { |
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err := r.updateCredential() |
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if err != nil { |
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return "", err |
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} |
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} |
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return r.sessionCredential.SecurityToken, nil |
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} |
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// GetBearerToken is useless RamRoleArnCredential |
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func (r *RAMRoleArnCredential) GetBearerToken() string { |
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return "" |
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} |
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// GetType reutrns RamRoleArnCredential's type |
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func (r *RAMRoleArnCredential) GetType() string { |
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return "ram_role_arn" |
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} |
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func (r *RAMRoleArnCredential) updateCredential() (err error) { |
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if r.runtime == nil { |
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r.runtime = new(utils.Runtime) |
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} |
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request := request.NewCommonRequest() |
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request.Domain = "sts.aliyuncs.com" |
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request.Scheme = "HTTPS" |
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request.Method = "GET" |
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request.QueryParams["AccessKeyId"] = r.AccessKeyID |
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request.QueryParams["Action"] = "AssumeRole" |
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request.QueryParams["Format"] = "JSON" |
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if r.RoleSessionExpiration > 0 { |
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if r.RoleSessionExpiration >= 900 && r.RoleSessionExpiration <= 3600 { |
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request.QueryParams["DurationSeconds"] = strconv.Itoa(r.RoleSessionExpiration) |
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} else { |
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err = errors.New("[InvalidParam]:Assume Role session duration should be in the range of 15min - 1Hr") |
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return |
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} |
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} else { |
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request.QueryParams["DurationSeconds"] = strconv.Itoa(defaultDurationSeconds) |
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} |
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request.QueryParams["RoleArn"] = r.RoleArn |
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if r.Policy != "" { |
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request.QueryParams["Policy"] = r.Policy |
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} |
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request.QueryParams["RoleSessionName"] = r.RoleSessionName |
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request.QueryParams["SignatureMethod"] = "HMAC-SHA1" |
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request.QueryParams["SignatureVersion"] = "1.0" |
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request.QueryParams["Version"] = "2015-04-01" |
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request.QueryParams["Timestamp"] = utils.GetTimeInFormatISO8601() |
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request.QueryParams["SignatureNonce"] = utils.GetUUID() |
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signature := utils.ShaHmac1(request.BuildStringToSign(), r.AccessKeySecret+"&") |
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request.QueryParams["Signature"] = signature |
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request.Headers["Host"] = request.Domain |
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request.Headers["Accept-Encoding"] = "identity" |
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request.URL = request.BuildURL() |
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content, err := doAction(request, r.runtime) |
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if err != nil { |
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return fmt.Errorf("refresh RoleArn sts token err: %s", err.Error()) |
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} |
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var resp *ramRoleArnResponse |
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err = json.Unmarshal(content, &resp) |
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if err != nil { |
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return fmt.Errorf("refresh RoleArn sts token err: Json.Unmarshal fail: %s", err.Error()) |
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} |
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if resp == nil || resp.Credentials == nil { |
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return fmt.Errorf("refresh RoleArn sts token err: Credentials is empty") |
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} |
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respCredentials := resp.Credentials |
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if respCredentials.AccessKeyID == "" || respCredentials.AccessKeySecret == "" || respCredentials.SecurityToken == "" || respCredentials.Expiration == "" { |
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return fmt.Errorf("refresh RoleArn sts token err: AccessKeyID: %s, AccessKeySecret: %s, SecurityToken: %s, Expiration: %s", respCredentials.AccessKeyID, respCredentials.AccessKeySecret, respCredentials.SecurityToken, respCredentials.Expiration) |
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} |
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expirationTime, err := time.Parse("2006-01-02T15:04:05Z", respCredentials.Expiration) |
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r.lastUpdateTimestamp = time.Now().Unix() |
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r.credentialExpiration = int(expirationTime.Unix() - time.Now().Unix()) |
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r.sessionCredential = &sessionCredential{ |
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AccessKeyID: respCredentials.AccessKeyID, |
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AccessKeySecret: respCredentials.AccessKeySecret, |
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SecurityToken: respCredentials.SecurityToken, |
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} |
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return |
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} |
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aliyun /
credentials-go
