Pablo,
In the attached file, I insert a send cookie action on login and a remove
cookie action on logout. The steps mirror the xml changes.
Ray
On Sun, 2018-01-14 at 09:01 -0800, Pablo Vidaurri wrote:
I created a class that extends AbstractCasWebflowConfigurer to modify the
webflow instead of modifying xml directly. I can define a new action-state with
transitions but I can't seem to modify an already existing one.
For realSubmit action-state within login webflow:
<action-state id="realSubmit">
<transition on="warn" to="warn"/>
<transition on="success" to="sendTicketGrantingTicket"/>
.
.
.
</action-state>
For "success", how can I programatically change the transition from
"sendTicketGrantingTicket" to "doMyCustomAction"?
Would I have to define the entire action state or can I just update the single
transition?
I have the org.springframework.webflow.engine.Flow Object but I don't see an
appropriate method to update the transition.
Thanks.
-psv
--
Ray Bon
Programmer analyst
Development Services, University Systems
2507218831 | CLE 019 | r...@uvic.ca
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package org.apereo.cas.web.flow;
import org.apereo.cas.configuration.CasConfigurationProperties;
import org.apereo.cas.web.flow.configurer.AbstractCasWebflowConfigurer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.webflow.definition.TransitionDefinition;
import org.springframework.webflow.definition.registry.FlowDefinitionRegistry;
import org.springframework.webflow.engine.*;
import org.springframework.webflow.engine.builder.support.FlowBuilderServices;
import org.springframework.webflow.execution.Action;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;
/**
* This is {@UvicSsoCookieWebflowConfigurer}.
*
* @author Ray Bon
* @since 5.1.5
*/
public class UvicSsoCookieWebflowConfigurer extends AbstractCasWebflowConfigurer {
private static final Logger LOGGER = LoggerFactory.getLogger(UvicSsoCookieWebflowConfigurer.class);
@Autowired
private SendUvicSsoCookieAction sendUvicSsoCookieAction;
@Autowired
private RemoveUvicSsoCookieAction removeUvicSsoCookieAction;
public UvicSsoCookieWebflowConfigurer(final FlowBuilderServices flowBuilderServices,
final FlowDefinitionRegistry loginFlowDefinitionRegistry,
final ApplicationContext applicationContext,
final CasConfigurationProperties casProperties,
FlowDefinitionRegistry logoutFlowDefinitionRegistry) {
super(flowBuilderServices, loginFlowDefinitionRegistry, applicationContext, casProperties);
super.setLogoutFlowDefinitionRegistry(logoutFlowDefinitionRegistry);
}
@Override
protected void doInitialize() {
final Flow loginFlow = getLoginFlow();
if (null != loginFlow) {
LOGGER.debug("send uvic sso cookie do initialize");
//LOGGER.debug("login flow before: " + loginFlow);
insertSendUvicSsoCookie(loginFlow);
//LOGGER.debug("login flow after: " + getLoginFlow());
}
final Flow logoutFlow = getLogoutFlow();
if ((null != logoutFlow) && (null != loginFlow)){
LOGGER.debug("remove uvic sso cookie do initialize");
//LOGGER.debug("logout flow before: " + logoutFlow);
insertRemoveUvicSsoCookie(loginFlow, logoutFlow);
//LOGGER.debug("login flow after: " + getLoginFlow());
//LOGGER.debug("logout flow after: " + logoutFlow);
}
}
/**
* Inserts a state into a transition for another state and sets the new state's matching transistion to
* the previous target (preserving the state flow). This method is currently hard coded to state success.
* @param insertAfterState this state will have its transition modified
* @param insertableState state to be inserted into the transition order
* @param insertAtTransisitonId id of the transition to be modifed
* @param insertableTransitionId transistion id of insertableState (is there a method to get this constant id?)
*/
private void insertStateIntoTransition(
final TransitionableState insertAfterState,
final TransitionableState insertableState,
final String insertAtTransisitonId,
final String insertableTransitionId) {
TransitionDefinition td = insertAfterState.getTransition(insertAtTransisitonId);
TransitionDefinition [] tds = insertAfterState.getTransitions();
if (null == td) {
LOGGER.warn("Transition, [{}], not found for [{}]. No insertion made.", insertAtTransisitonId, insertAfterState);
} else {
createTransitionForState(
insertableState,
CasWebflowConstants.STATE_ID_SUCCESS,
td.getTargetStateId());
createTransitionForState(
insertAfterState,
insertAtTransisitonId,
insertableTransitionId,
true);
}
}
private void insertRemoveUvicSsoCookie(final Flow loginFlow, final Flow logoutFlow) {
final ActionState terminateSessionLI = (ActionState) loginFlow.getState(
CasWebflowConstants.STATE_ID_TERMINATE_SESSION);
final ActionState terminateSessionLO = (ActionState) logoutFlow.getState(
CasWebflowConstants.STATE_ID_TERMINATE_SESSION);
final ActionState removeUvicSsoCookieActionStateLI = createActionState(
loginFlow,
RemoveUvicSsoCookieAction.STATE_ID_REMOVE_UVIC_SSO_COOKIE,
removeUvicSsoCookieAction);
final ActionState removeUvicSsoCookieActionStateLO = createActionState(
logoutFlow,
RemoveUvicSsoCookieAction.STATE_ID_REMOVE_UVIC_SSO_COOKIE,
removeUvicSsoCookieAction);
insertStateIntoTransition(terminateSessionLI, removeUvicSsoCookieActionStateLI, "*",
RemoveUvicSsoCookieAction.STATE_ID_REMOVE_UVIC_SSO_COOKIE);
insertStateIntoTransition(terminateSessionLO, removeUvicSsoCookieActionStateLO, "*",
RemoveUvicSsoCookieAction.STATE_ID_REMOVE_UVIC_SSO_COOKIE);
logAction(removeUvicSsoCookieActionStateLI);
logAction(terminateSessionLI);
logAction(removeUvicSsoCookieActionStateLO);
logAction(terminateSessionLO);
}
private void insertSendUvicSsoCookie(final Flow loginFlow) {
// TODO: perhaps this should be a subflow of send TGT see createSubflowState
// then it would not need transition
// otherwise uvic_sso transition should be the transisition of send TGT just in case its transistion was changed by another webflow element
final ActionState sendUvicSsoCookieActionState = createActionState(
loginFlow,
SendUvicSsoCookieAction.STATE_ID_SEND_UVIC_SSO_COOKIE,
sendUvicSsoCookieAction);
final ActionState sendTGT = (ActionState) loginFlow.getState(
CasWebflowConstants.STATE_ID_SEND_TICKET_GRANTING_TICKET);
insertStateIntoTransition(sendTGT, sendUvicSsoCookieActionState, CasWebflowConstants.STATE_ID_SUCCESS,
SendUvicSsoCookieAction.STATE_ID_SEND_UVIC_SSO_COOKIE);
logAction(sendUvicSsoCookieActionState);
logAction(sendTGT);
}
private void logAction(ActionState actionState) {
LOGGER.debug("action state: " + actionState.getId());
final TransitionDefinition [] tds = actionState.getTransitions();
final List<Action> actions = StreamSupport.stream(actionState.getActionList().spliterator(), false)
.collect(Collectors.toList());
LOGGER.debug("\tnumber of transitions: " + tds.length);
for (TransitionDefinition td : tds) {
LOGGER.debug("\t\ttransition definition: " + td);
}
LOGGER.debug("\tnumber of actions: " + actions.size());
actions.forEach(a -> LOGGER.debug("\t\taction: " + a));
}
}
