src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java

@@ -5,16 +5,20 @@
import org.keycloak.common.util.KeycloakUriBuilder;
import org.keycloak.events.EventBuilder;
import org.keycloak.events.EventType;
import org.keycloak.forms.login.LoginFormsProvider;
import org.keycloak.models.*;
import org.keycloak.protocol.LoginProtocol;
import org.keycloak.protocol.cas.utils.LogoutHelper;
import org.keycloak.services.managers.ClientSessionCode;
import org.keycloak.services.managers.ResourceAdminManager;
import org.keycloak.sessions.AuthenticationSessionModel;
import org.keycloak.sessions.CommonClientSessionModel;

import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import java.io.IOException;
import java.lang.reflect.Method;
import java.net.URI;

public class CASLoginProtocol implements LoginProtocol {
@@ -32,6 +36,8 @@

    public static final String SERVICE_TICKET_PREFIX = "ST-";
    public static final String SESSION_SERVICE_TICKET = "service_ticket";

    public static final String LOGOUT_REDIRECT_URI = "CAS_LOGOUT_REDIRECT_URI";

    protected KeycloakSession session;
    protected RealmModel realm;
@@ -81,14 +87,24 @@
    }

    @Override
    public Response authenticated(UserSessionModel userSession, ClientSessionCode accessCode) {
        ClientSessionModel clientSession = accessCode.getClientSession();
    public Response authenticated(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
        ClientSessionCode<AuthenticatedClientSessionModel> accessCode = new ClientSessionCode<>(session, realm, clientSession);

        String service = clientSession.getRedirectUri();
        //TODO validate service
        accessCode.setAction(ClientSessionModel.Action.CODE_TO_TOKEN.name());

        String code;
        try {
            // Keycloak >3.4 branch: Method getCode was renamed to getOrGenerateCode, CODE_TO_TOKEN was removed
            Method getOrGenerateCode = ClientSessionCode.class.getMethod("getOrGenerateCode");
            code = (String) getOrGenerateCode.invoke(accessCode);
        } catch (ReflectiveOperationException e) {
            // Keycloak <=3.3 branch
            accessCode.setAction(CommonClientSessionModel.Action.CODE_TO_TOKEN.name());
            code = accessCode.getCode();
        }
        KeycloakUriBuilder uriBuilder = KeycloakUriBuilder.fromUri(service);
        uriBuilder.queryParam(TICKET_RESPONSE_PARAM, SERVICE_TICKET_PREFIX + accessCode.getCode());
        uriBuilder.queryParam(TICKET_RESPONSE_PARAM, SERVICE_TICKET_PREFIX + code);

        URI redirectUri = uriBuilder.build();

@@ -97,12 +113,12 @@
    }

    @Override
    public Response sendError(ClientSessionModel clientSession, Error error) {
    public Response sendError(AuthenticationSessionModel authSession, Error error) {
        return Response.serverError().entity(error).build();
    }

    @Override
    public void backchannelLogout(UserSessionModel userSession, ClientSessionModel clientSession) {
    public void backchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
        String logoutUrl = clientSession.getRedirectUri();
        String serviceTicket = clientSession.getNote(CASLoginProtocol.SESSION_SERVICE_TICKET);
        //check if session is fully authenticated (i.e. serviceValidate has been called)
@@ -124,21 +140,29 @@
    }

    @Override
    public Response frontchannelLogout(UserSessionModel userSession, ClientSessionModel clientSession) {
    public Response frontchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
        // todo oidc redirect support
        throw new RuntimeException("NOT IMPLEMENTED");
    }

    @Override
    public Response finishLogout(UserSessionModel userSession) {
        String redirectUri = userSession.getNote(CASLoginProtocol.LOGOUT_REDIRECT_URI);

        event.event(EventType.LOGOUT);
        event.user(userSession.getUser()).session(userSession).success();
        return Response.ok().build();
        LoginFormsProvider infoPage = session.getProvider(LoginFormsProvider.class).setSuccess("Logout successful");
        if (redirectUri != null) {
            infoPage.setAttribute("pageRedirectUri", redirectUri);
        } else {
            infoPage.setAttribute("skipLink", true);
        }
        return infoPage.createInfoPage();
    }

    @Override
    public boolean requireReauthentication(UserSessionModel userSession, ClientSessionModel clientSession) {
        return "true".equals(clientSession.getNote(CASLoginProtocol.RENEW_PARAM));
    public boolean requireReauthentication(UserSessionModel userSession, AuthenticationSessionModel authSession) {
        return "true".equals(authSession.getClientNote(CASLoginProtocol.RENEW_PARAM));
    }

    @Override