publicca: use RawURLEncoding instead of URLEncoding for unpadded base64 encoding (#15010)

Author: ramonvermeulen

mmv1/templates/terraform/custom_flatten/publicca_b64url_mac_key.go.tmpl

@@ -15,10 +15,10 @@ func flatten{{$.GetPrefix}}{{$.TitlelizeProperty}}(v interface{}, d *schema.Reso
 		return ""
 	}
 
-  dec, err := base64.StdEncoding.DecodeString(v.(string))
+    dec, err := base64.RawStdEncoding.DecodeString(v.(string))
 	if err != nil {
 		return ""
 	}
 
-	return base64.URLEncoding.EncodeToString(dec)
+	return base64.RawURLEncoding.EncodeToString(dec)
 }

mmv1/third_party/terraform/verify/validation.go

@@ -290,7 +290,7 @@ func ValidateBase64String(i interface{}, val string) ([]string, []error) {
 }
 
 func ValidateBase64URLString(i interface{}, val string) ([]string, []error) {
-	_, err := base64.URLEncoding.DecodeString(i.(string))
+	_, err := base64.RawURLEncoding.DecodeString(i.(string))
 	if err != nil {
 		return nil, []error{fmt.Errorf("could not decode %q as a valid base64URL value.", val)}
 	}