Same problem here. Trying to setup a new SSO-saml from scratch using Keycloak.
I used the available docs but I always get the error ‘invalid_xml’ when I press ‘download XML meta-data’ button.
Nextcloud logs say
Erreur index OneLogin\Saml2\Error: Invalid SP metadata: invalid_xml
/var/www/html/lib/private/AppFramework/Http/Dispatcher.php - line 230:
OCA\User_SAML\Controller\SAMLController->getMetadata(1)
/var/www/html/lib/private/AppFramework/Http/Dispatcher.php - line 137:
OC\AppFramework\Http\Dispatcher->executeController([ "OCA\\User ... "], "getMetadata")
/var/www/html/lib/private/AppFramework/App.php - line 183:
OC\AppFramework\Http\Dispatcher->dispatch([ "OCA\\User ... "], "getMetadata")
/var/www/html/lib/private/Route/Router.php - line 315:
OC\AppFramework\App::main("OCA\\User_S ... r", "getMetadata", [ "OC\\AppFr ... "], [ "user_saml.SAML.getMetadata"])
/var/www/html/lib/base.php - line 1068:
OC\Route\Router->match("/apps/user_saml/saml/metadata")
/var/www/html/index.php - line 36:
OC::handleRequest()
Nextcloud 27.1.2 using Kubernetes Helm Chart (v 4.3.5)
SSO & SAML authentication app version 5.2.2