Hi all,
Following the jasig documentation
(https://wiki.jasig.org/display/CASUM/SPNEGO), i attempt to link my cas
server to our Active Directory kerberos server.
I have read some thread in list for the change since version 3.4.9 in
webflow with the generateLoginTicket.
After modifying the login-webflow.xml file to integrate spnego, i always
get an unauthorized 401 tomcat page and never the casLoginView when
spnego fails.
The login-webflow.xml file is attached.
Setting th webflow logging to TRACE i can see the following :
2012-06-04 11:44:37,742 TRACE
[org.jasig.cas.web.flow.GenerateLoginTicketAction] - Entering method
[generate with arguments [[[RequestControlContextImpl@1105276c
externalContext =
org.springframework.webflow.mvc.servlet.MvcExternalContext@695f2c2e,
currentEvent = error, requestScope = map[[empty]], attributes =
map[[empty]], messageContext = [DefaultMessageContext@674db60d
sourceMessages = map[[null] -> list[[empty]]]], flowExecution =
[FlowExecutionImpl@1eeb4477 flow = 'login', flowSessions =
list[[FlowSessionImpl@67dbf07c flow = 'login', state =
'generateLoginTicket', scope = map['service' -> [null], 'credentials' ->
[username: null], 'warnCookieValue' -> false, 'ticketGrantingTicketId'
-> [null]]]]]]]]
2012-06-04 11:44:37,742 DEBUG
[org.jasig.cas.web.flow.GenerateLoginTicketAction] - Generated login
ticket LT-7-pz9CgCCUwvIAM72dsC2aFfL2zrexHd
2012-06-04 11:44:37,743 TRACE
[org.jasig.cas.web.flow.GenerateLoginTicketAction] - Leaving method
[generate] with return value [generated].
It seems the webflow is correct since the GenerateLoginTicketAction
start and generate a ticket and return with the value "generated".
But neither the login screen appears like it was described in the webflow...
I always obtain a 401 unauthorized page
Thanks for your help/advice
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<?xml version="1.0" encoding="UTF-8"?>
<flow xmlns="http://www.springframework.org/schema/webflow";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://www.springframework.org/schema/webflow
http://www.springframework.org/schema/webflow/spring-webflow-2.0.xsd";>
<var name="credentials" class="org.jasig.cas.authentication.principal.UsernamePasswordCredentials" />
<on-start>
<evaluate expression="initialFlowSetupAction" />
</on-start>
<decision-state id="ticketGrantingTicketExistsCheck">
<if test="flowScope.ticketGrantingTicketId neq null" then="hasServiceCheck" else="gatewayRequestCheck" />
</decision-state>
<decision-state id="gatewayRequestCheck">
<if test="externalContext.requestParameterMap['gateway'] neq '' && externalContext.requestParameterMap['gateway'] neq null && flowScope.service neq null" then="gatewayServicesManagementCheck" else="startAuthenticate" />
</decision-state>
<decision-state id="hasServiceCheck">
<if test="flowScope.service != null" then="renewRequestCheck" else="viewGenericLoginSuccess" />
</decision-state>
<decision-state id="renewRequestCheck">
<if test="externalContext.requestParameterMap['renew'] neq '' && externalContext.requestParameterMap['renew'] neq null" then="startAuthenticate" else="generateServiceTicket" />
</decision-state>
<!--
The "warn" action makes the determination of whether to redirect directly to the requested
service or display the "confirmation" page to go back to the server.
-->
<decision-state id="warn">
<if test="flowScope.warnCookieValue" then="showWarningView" else="redirect" />
</decision-state>
<!--
<action-state id="startAuthenticate">
<action bean="x509Check" />
<transition on="success" to="sendTicketGrantingTicket" />
<transition on="warn" to="warn" />
<transition on="error" to="generateLoginTicket" />
</action-state>
-->
<action-state id="startAuthenticate">
<evaluate expression="negociateSpnego" />
<transition on="success" to="spnego" />
</action-state>
<action-state id="spnego">
<evaluate expression="spnego" />
<transition on="success" to="sendTicketGrantingTicket" />
<transition on="error" to="generateLoginTicket" />
</action-state>
<action-state id="generateLoginTicket">
<evaluate expression="generateLoginTicketAction.generate(flowRequestContext)" />
<transition on="generated" to="viewLoginForm" />
</action-state>
<view-state id="viewLoginForm" view="casLoginView" model="credentials">
<binder>
<binding property="username" />
<binding property="password" />
</binder>
<on-entry>
<set name="viewScope.commandName" value="'credentials'" />
</on-entry>
<transition on="submit" bind="true" validate="true" to="realSubmit">
<evaluate expression="authenticationViaFormAction.doBind(flowRequestContext, flowScope.credentials)" />
</transition>
</view-state>
<action-state id="realSubmit">
<evaluate expression="authenticationViaFormAction.submit(flowRequestContext, flowScope.credentials, messageContext)" />
<transition on="warn" to="warn" />
<transition on="success" to="sendTicketGrantingTicket" />
<transition on="error" to="generateLoginTicket" />
</action-state>
<action-state id="sendTicketGrantingTicket">
<evaluate expression="sendTicketGrantingTicketAction" />
<transition to="serviceCheck" />
</action-state>
<decision-state id="serviceCheck">
<if test="flowScope.service neq null" then="generateServiceTicket" else="viewGenericLoginSuccess" />
</decision-state>
<action-state id="generateServiceTicket">
<evaluate expression="generateServiceTicketAction" />
<transition on="success" to ="warn" />
<transition on="error" to="generateLoginTicket" />
<transition on="gateway" to="gatewayServicesManagementCheck" />
</action-state>
<action-state id="gatewayServicesManagementCheck">
<evaluate expression="gatewayServicesManagementCheck" />
<transition on="success" to="redirect" />
</action-state>
<action-state id="redirect">
<evaluate expression="flowScope.service.getResponse(requestScope.serviceTicketId)" result-type="org.jasig.cas.authentication.principal.Response" result="requestScope.response" />
<transition to="postRedirectDecision" />
</action-state>
<decision-state id="postRedirectDecision">
<if test="requestScope.response.responseType.name() eq 'POST'" then="postView" else="redirectView" />
</decision-state>
<!--
the "viewGenericLogin" is the end state for when a user attempts to login without coming directly from a service.
They have only initialized their single-sign on session.
-->
<end-state id="viewGenericLoginSuccess" view="casLoginGenericSuccessView" />
<!--
The "showWarningView" end state is the end state for when the user has requested privacy settings (to be "warned") to be turned on. It delegates to a
view defines in default_views.properties that display the "Please click here to go to the service." message.
-->
<end-state id="showWarningView" view="casLoginConfirmView" />
<end-state id="postView" view="postResponseView">
<on-entry>
<set name="requestScope.parameters" value="requestScope.response.attributes" />
<set name="requestScope.originalUrl" value="flowScope.service.id" />
</on-entry>
</end-state>
<!--
The "redirect" end state allows CAS to properly end the workflow while still redirecting
the user back to the service required.
-->
<end-state id="redirectView" view="externalRedirect:${requestScope.response.url}" />
<end-state id="viewServiceErrorView" view="viewServiceErrorView" />
<end-state id="viewServiceSsoErrorView" view="viewServiceSsoErrorView" />
<global-transitions>
<transition to="viewServiceErrorView" on-exception="org.springframework.webflow.execution.repository.NoSuchFlowExecutionException" />
<transition to="viewServiceSsoErrorView" on-exception="org.jasig.cas.services.UnauthorizedSsoServiceException" />
<transition to="viewServiceErrorView" on-exception="org.jasig.cas.services.UnauthorizedServiceException" />
</global-transitions>
</flow>
