package signers import ( "crypto/hmac" "crypto/sha1" "encoding/base64" "golib.gaore.com/GaoreGo/gaore-common-sdk-go/sdk/auth/credentials" ) type AccessKeySigner struct { credential *credentials.AccessKeyCredential } func (signer *AccessKeySigner) GetAccessKeyId() (string, error) { return signer.credential.AccessKeyId, nil } func (signer *AccessKeySigner) GetAccessKeyFrom() (string, error) { return signer.credential.AccessKeyFrom, nil } func (*AccessKeySigner) GetName() string { return "HMAC-SHA1" } func (signer *AccessKeySigner) Sign(stringToSign, secretSuffix string) string { secret := signer.credential.AccessKeySecret + secretSuffix return ShaHmac1(stringToSign, secret) } func NewAccessKeySigner(credential *credentials.AccessKeyCredential) *AccessKeySigner { return &AccessKeySigner{ credential: credential, } } func ShaHmac1(source, secret string) string { key := []byte(secret) hmac := hmac.New(sha1.New, key) hmac.Write([]byte(source)) signedBytes := hmac.Sum(nil) signedString := base64.StdEncoding.EncodeToString(signedBytes) return signedString }