Initial working authentication with SigV4

auth/errors.go

@@ -0,0 +1,19 @@
+package auth
+
+import "errors"
+
+var (
+	ErrAccessDenied                 = errors.New("access denied")
+	ErrInvalidAccessKeyID           = errors.New("invalid access key id")
+	ErrSignatureDoesNotMatch        = errors.New("signature does not match")
+	ErrAuthorizationHeaderMalformed = errors.New("authorization header malformed")
+	ErrRequestTimeTooSkewed         = errors.New("request time too skewed")
+	ErrExpiredToken                 = errors.New("expired token")
+	ErrCredentialDisabled           = errors.New("credential disabled")
+	ErrAuthNotEnabled               = errors.New("authentication is not enabled")
+	ErrMasterKeyRequired            = errors.New("auth master key is required")
+	ErrInvalidMasterKey             = errors.New("invalid auth master key")
+	ErrNoAuthCredentials            = errors.New("no auth credentials found")
+	ErrUnsupportedAuthScheme        = errors.New("unsupported auth scheme")
+	ErrInvalidPresign               = errors.New("invalid presigned request")
+)