Return a more useful error on /register spec compliance violation
MODIFY
clientapi/routing/register.go
clientapi/routing/register.go
@@ -502,11 +502,23 @@ func Register(
// Squash username to all lowercase letters
r.Username = strings.ToLower(r.Username)
- if r.Type == authtypes.LoginTypeApplicationService && accessTokenErr == nil {
+ switch {
+ case r.Type == authtypes.LoginTypeApplicationService && accessTokenErr == nil:
+ // Spec-compliant case (the access_token is specified and the login type
+ // is correctly set, so it's an appservice registration)
if resErr = validateApplicationServiceUsername(r.Username); resErr != nil {
return *resErr
}
- } else {
+ case accessTokenErr == nil:
+ // Non-spec-compliant case (the access_token is specified but the login
+ // type is not known or specified)
+ return util.JSONResponse{
+ Code: http.StatusBadRequest,
+ JSON: jsonerror.MissingArgument("A known registration type (e.g. m.login.application_service) must be specified if an access_token is provided"),
+ }
+ default:
+ // Spec-compliant case (neither the access_token nor the login type are
+ // specified, so it's a normal user registration)
if resErr = validateUsername(r.Username); resErr != nil {
return *resErr
}

Return a more useful error on /register spec compliance violation (#1792)