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ejb-security: Using Java EE Declarative Security to Control Access

The ejb-security quickstart demonstrates the use of Java EE declarative security to control access to EJBs in WildFly.

What is it?

The ejb-security quickstart demonstrates the use of Java EE declarative security to control access to EJBs in WildFly Application Server.

This quickstart takes the following steps to implement EJB security:

  1. Add an application-security-domain mapping in the ejb3 subsystem to enable Elytron security for the SecuredEJB.

  2. Add the @SecurityDomain("other") security annotation to the EJB declaration to tell the EJB container to apply authorization to this EJB.

  3. Add the @RolesAllowed({ "guest" }) annotation to the EJB declaration to authorize access only to users with guest role access rights.

  4. Add the @RolesAllowed({ "admin" }) annotation to the administrative method in the SecuredEJB to authorize access only to users with admin role access rights.

  5. Add an application user with guest role access rights to the EJB. This quickstart defines a user quickstartUser with password quickstartPwd1! in the guest role. The guest role matches the allowed user role defined in the @RolesAllowed annotation in the EJB but it should not be granted access to the administrative method annotated with RolesAllowed({"admin"}).

Add the Application Users

Using the add-user utility script, you must add the following users to the ApplicationRealm.

UserName Realm Password Roles

quickstartUser

ApplicationRealm

quickstartPwd1!

guest

The application user has guest access rights to the application but no admin rights.

To add the application user, open a terminal and type the following commands.

$ WILDFLY_HOME/bin/add-user.sh -a -u 'quickstartUser' -p 'quickstartPwd1!' -g 'guest'
Note
 For Windows, use the WILDFLY_HOME\bin\add-user.bat script.

If you prefer, you can use the add-user utility interactively. For an example of how to use the add-user utility, see the instructions located here: Add an Application User.

Configure the Server

You configure the security domain by running JBoss CLI commands. For your convenience, this quickstart batches the commands into a configure-elytron.cli script provided in the root directory of this quickstart.

  1. Before you begin, make sure you do the following:

  2. Review the configure-elytron.cli file in the root of this quickstart directory. This script adds the configuration that enables Elytron security for the quickstart components. Comments in the script describe the purpose of each block of commands.

  3. Open a new terminal, navigate to the root directory of this quickstart, and run the following command, replacing WILDFLY_HOME with the path to your server:

    $ WILDFLY_HOME/bin/jboss-cli.sh --connect --file=configure-elytron.cli
    Note
    		 For Windows, use the WILDFLY_HOME\bin\jboss-cli.bat script.

    You should see the following result when you run the script:

    The batch executed successfully
process-state: reload-required

  4. Stop the WildFly server.

Review the Modified Server Configuration

After stopping the server, open the WILDFLY_HOME/standalone/configuration/standalone.xml file and review the changes.

  1. The following application-security-domain mapping was added to the ejb3 subsystem:

    <application-security-domains>
    <application-security-domain name="other" security-domain="ApplicationDomain"/>
</application-security-domains>

    The application-security-domain enables Elytron security for the quickstart EJBs. It maps the other security domain that is set in the EJBs using the Java annotation @SecurityDomain("other") to the Elytron ApplicationDomain that is responsible for authenticating and authorizing access to the EJBs.

  2. The http-remoting-connector in the remoting subsystem was updated to use the application-sasl-authentication factory:

    <http-connector name="http-remoting-connector" connector-ref="default" security-realm="ApplicationRealm" sasl-authentication-factory="application-sasl-authentication"/>

    This configuration allows the identity that was established at the connection level to be propagated to the components.

Run the Client

Before you run the client, make sure you have already successfully deployed the EJBs to the server in the previous step and that your terminal is still in the root directory of this quickstart.

Type this command to execute the client:

$ mvn exec:exec

Investigate the Console Output

When you run the mvn exec:exec command, you see the following output. Note there may be other log messages interspersed between these messages.

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Successfully called secured bean, caller principal quickstartUser

Principal has admin permission: false

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

The username and credentials used to establish the connection to the application server are configured in the wildfly-config.xml file. As expected, the quickstartUser was able to invoke the method available for the guest`role, but not the administrative method that requires the `admin role.

Note

You should also see the following EJBAccessException printed in the server log, followed by a stack trace. This is to be expected because the user does not have the correct permissions to access the EJB.

ERROR [org.jboss.as.ejb3.invocation] (default task-38) WFLYEJB0034: EJB Invocation failed on component SecuredEJB for method public abstract boolean org.jboss.as.quickstarts.ejb_security.SecuredEJBRemote.administrativeMethod(): javax.ejb.EJBAccessException: WFLYEJB0364: Invocation on method: public abstract boolean org.jboss.as.quickstarts.ejb_security.SecuredEJBRemote.administrativeMethod() of bean: SecuredEJB is not allowed

As an exercise, you can rerun the add-user script described in the Add the Application Users section, but this time grant the quickstartUser the admin role as follows:

$ WILDFLY_HOME/bin/add-user.sh -a -u 'quickstartUser' -p 'quickstartPwd1!' -g 'guest,admin'
Note
 For Windows, use the WILDFLY_HOME\bin\add-user.bat scripts.

After you update the quickstartUser user role, you must restart the server for it to take effect. Running the client again should immediately reflect the new permission level of the user:

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Successfully called secured bean, caller principal quickstartUser

Principal has admin permission: true

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

This script reverts the changes made to the ejb3 and undertow subsystems. You should see the following result when you run the script.

The batch executed successfully
process-state: reload-required

  1. Make sure you Add the Application Users as described above.

  2. Make sure you configure the server by running the JBoss CLI script as described above under Configure the Server.

  3. To deploy the server project, right-click on the {artifactId} project and choose Run As –> Maven build. Enter clean package wildfly:deploy for the Goals and click Run. This deploys the {artifactId} JAR to the WildFly server.

  4. Right-click on the {artifactId} project and choose Run As –> Run Configurations. Enter exec:exec for the Goals, and then click Run.

  5. Review the output in the console window. You should see the same results as when running Maven in the command line.

  6. To undeploy the project, right-click on the {artifactId} project and choose Run As –> Run Configurations. Enter wildfly:undeploy for the Goals and click Run.

  7. Make sure you restore the server configuration when you have completed testing this quickstart.