Hey Misagh, Could you point me to something about the built in feature for checking if a user is already registered for MFA/Duo?
On Tuesday, February 6, 2018 at 2:14:53 PM UTC-5, Misagh Moayyed wrote: > > Brian, if I have understood things correctly I think you're doing this the > hard way: I suspect the sort of thing you're after can be handled with > bypass options in CAS where you skip MFA if a particular attribute is found > on the authenticated user (ldap group is blah). If a match is found, bypass > will kick in and if not, CAS should be able to trigger MFA. There is also > the built-in ability to check with Duo directly to see if the user has in > fact registered for MFA/Duo and does have an account. > > --Misagh > > ------------------------------ > > *From: *"Man H" <info.i...@gmail.com <javascript:>> > *To: *cas-...@apereo.org <javascript:> > *Sent: *Tuesday, February 6, 2018 10:56:18 AM > *Subject: *Re: [cas-user] Multiple Duo Instances > > So in my opinion you have a globaltriggerpolicy mfa-duo and eg a groovy > trigger for employees. > > > https://apereo.github.io/cas/5.2.x/installation/Configuring-Multifactor-Authentication-Triggers.html > > 2018-02-06 12:18 GMT-03:00 brian mancuso <snid...@gmail.com <javascript:>> > : > >> I'm open to any solution that simplifies things and meets the needs. When >> I'd read the documentation, it seemed custom triggers were the way to go >> here. >> To give a little more information, I have students and employees that >> both need to login via CAS to several systems. For some of those systems, >> we need to require employees that login to use DUO while students will have >> the option, but not be required. Other systems won't require DUO for either >> group unless they're already enrolled. >> >> On Tuesday, February 6, 2018 at 9:59:02 AM UTC-5, Manfredo Hopp wrote: >>> >>> Couldn't this be achieved through custom authentication handler? >>> >>> El martes, 6 de febrero de 2018, brian mancuso <snid...@gmail.com> >>> escribió: >>> >>>> We would like to allow users in a specific ldap group the ability to >>>> optionally bypass Duo for a given service if the user is not signed up for >>>> a 2fa account. Essentially there would be these two cases for a user: >>>> >>>> - 2fa always required >>>> - 2fa optionally required (but always required if the user has a Duo >>>> account) >>>> >>>> I have two duo instances defined in the cas.properties file: mfa-duo, >>>> mfa-duo-force. The first is in bypass mode while the latter doesn't allow >>>> any bypass. >>>> Then my other classes are thus: >>>> *spring.factories* >>>> org.springframework.boot.autoconfigure.EnableAutoConfiguration=org. >>>> apereo.cas.custom.config.SelectiveDuoWebflowEventResolverConfiguration >>>> >>>> >>>> I then put together a custom trigger that will determine if a user is >>>> required to use DUO or not: >>>> >>>> *SelectiveDuoWebflowEventResolver.java* >>>> package org.apereo.cas.custom.mfa; >>>> >>>> import com.google.common.collect.ImmutableSet; >>>> import java.util.Map; >>>> import java.util.Optional; >>>> import java.util.Set; >>>> import org.apereo.cas.CentralAuthenticationService; >>>> import org.apereo.cas.authentication.Authentication; >>>> import org.apereo.cas.authentication.AuthenticationServiceSelectionPlan; >>>> import org.apereo.cas.authentication.AuthenticationSystemSupport; >>>> import org.apereo.cas.authentication.principal.Principal; >>>> import org.apereo.cas.services.MultifactorAuthenticationProvider; >>>> import >>>> org.apereo.cas.services.MultifactorAuthenticationProviderSelector; >>>> import org.apereo.cas.services.RegisteredService; >>>> import org.apereo.cas.services.ServicesManager; >>>> import org.apereo.cas.ticket.registry.TicketRegistrySupport; >>>> import >>>> org.apereo.cas.web.flow.resolver.impl.AbstractCasWebflowEventResolver; >>>> import org.apereo.cas.web.support.WebUtils; >>>> import org.slf4j.Logger; >>>> import org.slf4j.LoggerFactory; >>>> import org.springframework.web.util.CookieGenerator; >>>> import org.springframework.webflow.execution.Event; >>>> import org.springframework.webflow.execution.RequestContext; >>>> >>>> public class SelectiveDuoWebflowEventResolver extends >>>> AbstractCasWebflowEventResolver { >>>> >>>> private static final Logger LOGGER = >>>> LoggerFactory.getLogger(SelectiveDuoWebflowEventResolver.class); >>>> >>>> public SelectiveDuoWebflowEventResolver(AuthenticationSystemSupport >>>> authenticationSystemSupport, CentralAuthenticationService >>>> centralAuthenticationService, ServicesManager servicesManager, >>>> TicketRegistrySupport ticketRegistrySupport, CookieGenerator >>>> warnCookieGenerator, AuthenticationServiceSelectionPlan >>>> authenticationSelectionStrategies, >>>> MultifactorAuthenticationProviderSelector selector) { >>>> super(authenticationSystemSupport, >>>> centralAuthenticationService, servicesManager, ticketRegistrySupport, >>>> warnCookieGenerator, authenticationSelectionStrategies, selector); >>>> } >>>> >>>> @Override >>>> public Set<Event> resolveInternal(RequestContext context) { >>>> final RegisteredService service = >>>> WebUtils.getRegisteredService(context); >>>> final Authentication authentication = >>>> WebUtils.getAuthentication(context); >>>> Set<String> attributeKeys = >>>> authentication.getAttributes().keySet(); >>>> for (String s : attributeKeys) { >>>> System.out.println("s: " + s + " " + >>>> authentication.getAttributes().get(s)); >>>> } >>>> Principal principal = authentication.getPrincipal(); >>>> attributeKeys = principal.getAttributes().keySet(); >>>> for (String s : attributeKeys) { >>>> System.out.println("p: " + s + " " + >>>> principal.getAttributes().get(s)); >>>> } >>>> if (userRequiresDUO()) { >>>> LOGGER.warn("Forcing MFA"); >>>> Optional<MultifactorAuthenticationProvider> mfaDuoForced = >>>> this.getMultifactorAuthenticationProviderFromApplicationContext("mfa-duo-force"); >>>> MultifactorAuthenticationProvider forcedProvider = >>>> mfaDuoForced.get(); >>>> final Map eventAttributes >>>> = >>>> buildEventAttributeMap(authentication.getPrincipal(), >>>> service, >>>> forcedProvider); >>>> final Event event >>>> = >>>> validateEventIdForMatchingTransitionInContext(forcedProvider.getId(), >>>> context, eventAttributes); >>>> return ImmutableSet.of(event); >>>> } else { >>>> LOGGER.warn("Not forcing MFA"); >>>> Optional<MultifactorAuthenticationProvider> mfaDuo = >>>> this.getMultifactorAuthenticationProviderFromApplicationContext("mfa-duo"); >>>> MultifactorAuthenticationProvider bypassableProvider = >>>> mfaDuo.get(); >>>> final Map eventAttributes >>>> = buildEventAttributeMap(authentication.getPrincipal(), >>>> service, >>>> bypassableProvider); >>>> final Event event >>>> = >>>> validateEventIdForMatchingTransitionInContext(bypassableProvider.getId(), >>>> context, eventAttributes); >>>> return ImmutableSet.of(event); >>>> } >>>> } >>>> } >>>> >>>> >>>> >>>> *SelectiveDuoWebflowEventResolverConfiguration.java* >>>> package org.apereo.cas.custom.config; >>>> >>>> import javax.annotation.PostConstruct; >>>> import org.apereo.cas.CentralAuthenticationService; >>>> import org.apereo.cas.authentication.AuthenticationServiceSelectionPlan; >>>> import org.apereo.cas.authentication.AuthenticationSystemSupport; >>>> import org.apereo.cas.configuration.CasConfigurationProperties; >>>> import org.apereo.cas.custom.mfa.SelectiveDuoWebflowEventResolver; >>>> import >>>> org.apereo.cas.services.MultifactorAuthenticationProviderSelector; >>>> import org.apereo.cas.services.ServicesManager; >>>> import org.apereo.cas.ticket.registry.TicketRegistrySupport; >>>> import >>>> org.apereo.cas.web.flow.authentication.RankedMultifactorAuthenticationProviderSelector; >>>> import >>>> org.apereo.cas.web.flow.resolver.CasDelegatingWebflowEventResolver; >>>> import org.apereo.cas.web.flow.resolver.CasWebflowEventResolver; >>>> import org.springframework.beans.factory.annotation.Autowired; >>>> import org.springframework.beans.factory.annotation.Qualifier; >>>> import >>>> org.springframework.boot.context.properties.EnableConfigurationProperties; >>>> import org.springframework.cloud.context.config.annotation.RefreshScope; >>>> import org.springframework.context.annotation.Bean; >>>> import org.springframework.context.annotation.Configuration; >>>> import org.springframework.web.util.CookieGenerator; >>>> >>>> @Configuration("selectiveDuoWebflowEventResolverConfiguration") >>>> @EnableConfigurationProperties(CasConfigurationProperties.class) >>>> public class SelectiveDuoWebflowEventResolverConfiguration { >>>> >>>> @Autowired >>>> @Qualifier("initialAuthenticationAttemptWebflowEventResolver") >>>> private CasDelegatingWebflowEventResolver initialEventResolver; >>>> >>>> @Autowired >>>> @Qualifier("centralAuthenticationService") >>>> private CentralAuthenticationService centralAuthenticationService; >>>> >>>> @Autowired >>>> @Qualifier("defaultAuthenticationSystemSupport") >>>> private AuthenticationSystemSupport authenticationSystemSupport; >>>> >>>> @Autowired >>>> @Qualifier("defaultTicketRegistrySupport") >>>> private TicketRegistrySupport ticketRegistrySupport; >>>> >>>> @Autowired >>>> @Qualifier("servicesManager") >>>> private ServicesManager servicesManager; >>>> >>>> @Autowired(required = false) >>>> @Qualifier("multifactorAuthenticationProviderSelector") >>>> private final MultifactorAuthenticationProviderSelector >>>> multifactorAuthenticationProviderSelector = new >>>> RankedMultifactorAuthenticationProviderSelector(); >>>> >>>> @Autowired >>>> @Qualifier("warnCookieGenerator") >>>> private CookieGenerator warnCookieGenerator; >>>> >>>> @Autowired >>>> @Qualifier("authenticationServiceSelectionPlan") >>>> private AuthenticationServiceSelectionPlan >>>> authenticationRequestServiceSelectionStrategies; >>>> >>>> @RefreshScope >>>> @Bean >>>> public CasWebflowEventResolver selectiveDuoWebflowEventResolver() { >>>> return new >>>> SelectiveDuoWebflowEventResolver(authenticationSystemSupport, >>>> centralAuthenticationService, >>>> servicesManager, ticketRegistrySupport, >>>> warnCookieGenerator, >>>> authenticationRequestServiceSelectionStrategies, >>>> multifactorAuthenticationProviderSelector); >>>> } >>>> >>>> @PostConstruct >>>> public void initialize() { >>>> >>>> initialEventResolver.addDelegate(selectiveDuoWebflowEventResolver()); >>>> } >>>> >>>> } >>>> >>>> >>>> This is driving me nuts because in the documentation it just states >>>> that you are allowed to use multiple DUO instances. But I'm getting an >>>> error that transitions aren't defined for the mfa-duo-force instance: >>>> >>>> 2018-02-01 10:25:29,433 WARN >>>> [org.apereo.cas.web.flow.resolver.impl.AbstractCasWebflowEventResolver] - >>>> <Transition definition cannot be found for event [mfa-duo-force|mfa-duo]> >>>> >>>> >>>> If anyone has any information on how I can get this working or if I'm >>>> approaching this all wrong, please let me know. Thanks in advance! >>>> >>>> -- >>>> - Website: https://apereo.github.io/cas >>>> - Gitter Chatroom: https://gitter.im/apereo/cas >>>> - List Guidelines: https://goo.gl/1VRrw7 >>>> - Contributions: https://goo.gl/mh7qDG >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "CAS Community" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to cas-user+u...@apereo.org. >>>> To view this discussion on the web visit >>>> https://groups.google.com/a/apereo.org/d/msgid/cas-user/263f6a6c-9f2b-446f-9707-3c23b96a3f65%40apereo.org >>>> >>>> <https://groups.google.com/a/apereo.org/d/msgid/cas-user/263f6a6c-9f2b-446f-9707-3c23b96a3f65%40apereo.org?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >> - Website: https://apereo.github.io/cas >> - Gitter Chatroom: https://gitter.im/apereo/cas >> - List Guidelines: https://goo.gl/1VRrw7 >> - Contributions: https://goo.gl/mh7qDG >> --- >> You received this message because you are subscribed to the Google Groups >> "CAS Community" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to cas-user+u...@apereo.org <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/a/apereo.org/d/msgid/cas-user/ea1c8c9e-e871-458c-bb74-38e3ed896421%40apereo.org >> >> <https://groups.google.com/a/apereo.org/d/msgid/cas-user/ea1c8c9e-e871-458c-bb74-38e3ed896421%40apereo.org?utm_medium=email&utm_source=footer> >> . >> > > -- > - Website: https://apereo.github.io/cas > - Gitter Chatroom: https://gitter.im/apereo/cas > - List Guidelines: https://goo.gl/1VRrw7 > - Contributions: https://goo.gl/mh7qDG > --- > You received this message because you are subscribed to the Google Groups > "CAS Community" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to cas-user+u...@apereo.org <javascript:>. > To view this discussion on the web visit > https://groups.google.com/a/apereo.org/d/msgid/cas-user/CAMY5mid4RVozXqMAivmt%2BTFbduDud8054NkJFEdO8CM0tY6rTA%40mail.gmail.com > > <https://groups.google.com/a/apereo.org/d/msgid/cas-user/CAMY5mid4RVozXqMAivmt%2BTFbduDud8054NkJFEdO8CM0tY6rTA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > -- - Website: https://apereo.github.io/cas - Gitter Chatroom: https://gitter.im/apereo/cas - List Guidelines: https://goo.gl/1VRrw7 - Contributions: https://goo.gl/mh7qDG --- You received this message because you are subscribed to the Google Groups "CAS Community" group. 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