Hi, I have spent a lot of time trying to understand how the internals of CAS Webflow are working during the last weeks, and I have made some progress. With informations gathered here https://apereo.github.io/cas/6.6.x/webflow/Webflow-Customization-Extensions.html and there https://fawnoos.com/2021/08/20/cas64-webflow-extensions/ , I have managed to get some working code. package org.example.something; import org.apereo.cas.configuration.CasConfigurationProperties; import org.apereo.cas.web.flow.configurer.AbstractCasWebflowConfigurer; import org.apereo.cas.web.flow.CasWebflowConstants; import lombok.extern.slf4j.Slf4j; import lombok.val; import org.springframework.context.ConfigurableApplicationContext; import org.springframework.webflow.definition.registry.FlowDefinitionRegistry; import org.springframework.webflow.engine.Flow; import org.springframework.webflow.engine.builder.support.FlowBuilderServices; import org.springframework.webflow.engine.ViewState; @Slf4j public class SomethingWebflowConfigurer extends AbstractCasWebflowConfigurer { public SomethingWebflowConfigurer(FlowBuilderServices flowBuilderServices, FlowDefinitionRegistry flowDefinitionRegistry, ConfigurableApplicationContext applicationContext, CasConfigurationProperties casProperties) { super(flowBuilderServices, flowDefinitionRegistry, applicationContext, casProperties); } @Override protected void doInitialize() { var flow = super.getLoginFlow(); LOGGER.debug("[TESTING] doInitialize@SomethingWebflowConfigurer flow={}", flow); if (flow != null) { tweakFlow(flow); } } protected void tweakFlow(final Flow flow) { LOGGER.debug("[TESTING] tweakFlow@@SomethingWebflowConfigurer flow={}", flow); val state = getState(flow, CasWebflowConstants.STATE_ID_VIEW_LOGIN_FORM, ViewState.class); state.getTransitionSet().remove(createTransitionForState(state, CasWebflowConstants.TRANSITION_ID_SUBMIT, CasWebflowConstants.STATE_ID_REAL_SUBMIT)); createStateDefaultTransition(state, CasWebflowConstants.STATE_ID_MFA_UNAVAILABLE); } } Of course it's far from doing what I am expecting yet, but at least it is finally compling and running : What annoys me is that it's not logging anything. Of course my CAS instance has an exhaustive "log4j.xml" configuration, and I get a lot of informations in "cas.log" and on the console. But nothing in this case. I first thought it was not working or was ignored, but no, having a look at the JSON dump of the webflows reveals the creation operations have been executed. What did I miss ? Regards
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