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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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type RsaKeyPairCredential struct { |
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*credentialUpdater |
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PrivateKey string |
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PublicKeyID string |
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SessionExpiration int |
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sessionCredential *sessionCredential |
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runtime *utils.Runtime |
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} |
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type RsaKeyPairResponse struct { |
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SessionAccessKey *SessionAccessKey `json:"SessionAccessKey" xml:"SessionAccessKey"` |
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} |
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type SessionAccessKey struct { |
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SessionAccessKeyID string `json:"SessionAccessKeyID" xml:"SessionAccessKeyID"` |
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SessionAccessKeySecret string `json:"SessionAccessKeySecret" xml:"SessionAccessKeySecret"` |
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Expiration string `json:"Expiration" xml:"Expiration"` |
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} |
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func newRsaKeyPairCredential(privateKey, publicKeyID string, sessionExpiration int, runtime *utils.Runtime) *RsaKeyPairCredential { |
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return &RsaKeyPairCredential{ |
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PrivateKey: privateKey, |
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PublicKeyID: publicKeyID, |
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SessionExpiration: sessionExpiration, |
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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 RsaKeyPairCredential'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 *RsaKeyPairCredential) 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 RsaKeyPairCredential'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 *RsaKeyPairCredential) GetAccessSecret() (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 is useless RsaKeyPairCredential |
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func (r *RsaKeyPairCredential) GetSecurityToken() (string, error) { |
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return "", nil |
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} |
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// GetBearerToken is useless for RsaKeyPairCredential |
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func (r *RsaKeyPairCredential) GetBearerToken() string { |
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return "" |
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} |
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// GetType reutrns RsaKeyPairCredential's type |
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func (r *RsaKeyPairCredential) GetType() string { |
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return "rsa_key_pair" |
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} |
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func (r *RsaKeyPairCredential) 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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if r.runtime.Host != "" { |
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request.Domain = r.runtime.Host |
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} |
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request.Scheme = "HTTPS" |
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request.Method = "GET" |
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request.QueryParams["AccessKeyId"] = r.PublicKeyID |
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request.QueryParams["Action"] = "GenerateSessionAccessKey" |
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request.QueryParams["Format"] = "JSON" |
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if r.SessionExpiration > 0 { |
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if r.SessionExpiration >= 900 && r.SessionExpiration <= 3600 { |
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request.QueryParams["DurationSeconds"] = strconv.Itoa(r.SessionExpiration) |
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} else { |
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err = errors.New("[InvalidParam]:Key Pair 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["SignatureMethod"] = "SHA256withRSA" |
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request.QueryParams["SignatureType"] = "PRIVATEKEY" |
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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.Sha256WithRsa(request.BuildStringToSign(), r.PrivateKey) |
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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 KeyPair err: %s", err.Error()) |
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} |
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var resp *RsaKeyPairResponse |
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err = json.Unmarshal(content, &resp) |
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if err != nil { |
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return fmt.Errorf("refresh KeyPair err: Json Unmarshal fail: %s", err.Error()) |
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} |
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if resp == nil || resp.SessionAccessKey == nil { |
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return fmt.Errorf("refresh KeyPair err: SessionAccessKey is empty") |
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} |
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sessionAccessKey := resp.SessionAccessKey |
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if sessionAccessKey.SessionAccessKeyID == "" || sessionAccessKey.SessionAccessKeySecret == "" || sessionAccessKey.Expiration == "" { |
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return fmt.Errorf("refresh KeyPair err: SessionAccessKeyID: %v, SessionAccessKeySecret: %v, Expiration: %v", sessionAccessKey.SessionAccessKeyID, sessionAccessKey.SessionAccessKeySecret, sessionAccessKey.Expiration) |
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} |
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expirationTime, err := time.Parse("2006-01-02T15:04:05Z", sessionAccessKey.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: sessionAccessKey.SessionAccessKeyID, |
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AccessKeySecret: sessionAccessKey.SessionAccessKeySecret, |
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} |
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return |
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} |
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aliyun /
credentials-go
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